VOLTMAX Electric Boiler Model: 22.5 kW to 180 kW: 208/240 Volts (single-phase) and 208/240/480 600 Volts (3-phase) INSTALLATION AND OPERATION MANUAL mo Your VOLTMAX Electric Boiler was carefully assembled and checked at the factory to ensure its proper functioning for many years. The following information and safety measures are provided to enable proper installation, operation, and maintenance of this product. It is imperative that all persons who are expected to install, operate or adjust this boi ler should read these instructions carefully. Any questions regarding the operation, maintenance, service or warranty of this electric boiler should be directed to the supplier. When all installation steps have been completed, keep this installation manual in a safe place (near the boiler) for future reference. THERMO 2000 INC. Printed in Canada Revised: May 2017
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VOLTMAX Electric Boiler - Thermo 2000 inc.VOLTMAX Electric Boiler Model: 22.5 kW to 180 kW: 208/240 Volts (single-phase) and 208/240/480 600 Volts (3-phase) INSTALLATION AND OPERATION
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VOLTMAX Electric BoilerModel: 22.5 kW to 180 kW: 208/240 Volts (single-phase) and 208/240/480
600 Volts (3-phase)
INSTALLATION AND OPERATION MANUAL
mo
Your VOLTMAX Electric Boiler was carefully assembled and checked at the factory to ensure its proper functioning for many years. The following information and safety measures are provided to enable proper installation, operation, and maintenance of this product. It is imperative that all persons who are expected to install, operate or adjust this boiler should read these instructions carefully. Any questions regarding the operation, maintenance, service or warranty of this electric boiler should be directed to the supplier. When all installation steps have been completed, keep this installation manual in a safe place (near the boiler) for future reference. THERMO 2000 INC.
Printed in Canada Revised: May 2017
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 2.
4.1 USER INTERFACE ............................................................................................................. 34 4.1.1 Symbol description ....................................................................................................... 34 4.1.2 Control panel ................................................................................................................ 35 4.1.3 Navigation and adjustements ....................................................................................... 35 4.1.4 Main menu navigation .................................................................................................. 36 4.1.5 Navigation in boiler setting ........................................................................................... 37
4.2 MAIN MENU ........................................................................................................................ 39 4.2.1 Boiler status .................................................................................................................. 39 4.2.2 Boiler configuration ....................................................................................................... 39 4.2.3 User setting .................................................................................................................. 39 4.2.4 Clock setting ................................................................................................................. 40 4.2.5 Consumption ................................................................................................................ 40
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 4.
SECTION 1 : TECHNICAL SPECIFICATIONS
Table 1: VOLTMAX 208 VAC / 60 Hz / Single-Phase1
Capacity STG
Series SCR Series
Model kW BTU/h Amps Electrical
element(s) 240 V Stage Relay
Stage Relay
SCR Stage
VOLTMAX 23 22,5 76 770 108,4 6 x 5 kW 3 x 7,5 kW 2 x 7,5 kW 1 x 7,5 kW
VOLTMAX 27 27 92 124 130,1 6 x 6 kW 3 x 9 kW 2 x 9 kW 1 x 9 kW
VOLTMAX 30 30 102 360 144,5 8 x 5 kW 4 x 7,5 kW 3 x 7,5 kW 1 x 7,5 kW
VOLTMAX 36 36 122 832 173,4 8 x 6 kW 4 x 9 kW 3 x 9 kW 1 x 9 kW
VOLTMAX 41 41 139 892 198,7 5 x 5 kW + 5 x 6 kW 5 x 8,25 kW 4 x 8,25 kW 1 x 8,25 kW
VOLTMAX 45 45 153 540 216,8 10 x 6 kW 5 x 9 kW 4 x 9 kW 1 x 9 kW
VOLTMAX 50 49,5 168 894 238,4 6 x 5 kW + 6 x 6 kW 6 x 8,25 kW 5 x 8,25 kW 1 x 8,25 kW
VOLTMAX 54 54 184 248 260,1 12 x 6 kW 6 x 9 kW 5 x 9 kW 1 x 9 kW 1 Electrical supply 208 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.
Table 2: VOLTMAX 240 VAC / 60 Hz / 1 Phase1
Capacity
STG Series
SCR Series
Model kW BTU/h Amps Electrical
element(s) 240 V Stage Relay
Stage Relay
SCR Stage
VOLTMAX 30 30 102 360 125 6 x 5 kW 3 x 10 kW 2 x 10 kW 1 x 10 kW
VOLTMAX 36 36 122 832 150 6 x 6 kW 3 x 12 kW 2 x 12 kW 1 x 12 kW
VOLTMAX 40 40 136 480 166,7 8 x 5 kW 4 x 10 kW 3 x 10 kW 1 x 10 kW
VOLTMAX 48 48 163 776 200 8 x 6 kW 4 x 12 kW 3 x 12 kW 1 x 12 kW
VOLTMAX 55 55 187 660 229,2 5 x 5 kW + 5 x 6 kW 5 x 11 kW 4 x 11 kW 1 x 11 kW
VOLTMAX 60 60 204 720 250 10 x 6 kW 5 x 12 kW 4 x 12 kW 1 x 12 kW
VOLTMAX 66 66 225 192 275 6 x 5 kW + 6 x 6 kW 6 x 11 kW 5 x 11 kW 1 x 11 kW
VOLTMAX 72 72 245 664 300 12 x 6 kW 6 x 12 kW 5 x 12 kW 1 x 12 kW 1 Electrical supply 240 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.
Table 3 : VOLTMAX 208 VAC / 60 Hz / 1 Phase1
Puissance STG
Series SCR Series
Model kW BTU/h Amps Electrical
element(s) 240 V Stage Relay
Stage Relay
SCR Stage
VOLTMAX 30 30 102 360 125 6 x 5 kW 3 x 10 kW 2 x 10 kW 1 x 10 kW
VOLTMAX 36 36 122 832 150 6 x 6 kW 3 x 12 kW 2 x 12 kW 1 x 12 kW
VOLTMAX 40 40 136 480 166,7 8 x 5 kW 4 x 10 kW 3 x 10 kW 1 x 10 kW
VOLTMAX 48 48 163 776 200 8 x 6 kW 4 x 12 kW 3 x 12 kW 1 x 12 kW
VOLTMAX 55 55 187 660 229,2 5 x 5 kW + 5 x 6 kW 5 x 11 kW 4 x 11 kW 1 x 11 kW
VOLTMAX 60 60 204 720 250 10 x 6 kW 5 x 12 kW 4 x 12 kW 1 x 12 kW
VOLTMAX 66 66 225 192 275 6 x 5 kW + 6 x 6 kW 6 x 11 kW 5 x 11 kW 1 x 11 kW
VOLTMAX 72 72 245 664 300 12 x 6 kW 6 x 12 kW 5 x 12 kW 1 x 12 kW 1 Electrical supply 208 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 5.
Table 4 : VOLTMAX 240 VAC / 60 Hz / 3 Phases1
Capacity
STG Series
SCR Series
Model kW BTU/h Amps Electrical
element(s) 240 V Stage Relay
Model kW
VOLTMAX 30 30 102 360 72 6 x 5 kW 2 x 15 kW 1 x 15 kW 1 x 15 kW
VOLTMAX 36 36 122 832 86,6 6 x 6 kW 2 x 18 kW 1 x 18 kW 1 x 18 kW
VOLTMAX 45 45 153 540 108,3 9 x 5 kW 3 x 15 kW 2 x 15 kW 1 x 15 kW
VOLTMAX 54 54 184 248 129,9 9 x 6 kW 3 x 18 kW 2 x 18 kW 1 x 18 kW
VOLTMAX 60 60 204 720 144,3 12 x 5 kW 4 x 15 kW 3 x 15 kW 1 x 15 kW
VOLTMAX 72 72 245 664 173,2 12 x 6 kW 4 x 18 kW 3 x 18 kW 1 x 18 kW
VOLTMAX 75 75 255 900 180,4 15 x 5 kW 5 x 15 kW 4 x 15 kW 1 x 15 kW 1 Electrical supply 240 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.
Table 5 : VOLTMAX 480 VAC / 60 Hz / 3 Phases1
Capacity STG Series SCR Series
Model kW BTU/h Amps Electrical element(s)
240 V Stage Relay Model kW
VOLTMAX 30 30 102 360 36,1 6 x 5 kW 2 x 15 kW 1 x 15 kW 1 x 15 kW
VOLTMAX 36 36 122 832 43,3 6 x 6 kW 2 x 18 kW 1 x 18 kW 1 x 18 kW
VOLTMAX 45 45 153 540 54,1 9 x 5 kW 3 x 15 kW 2 x 15 kW 1 x 15 kW
VOLTMAX 54 54 184 248 65 9 x 6 kW 3 x 18 kW 2 x 18 kW 1 x 18 kW
VOLTMAX 60 60 204 720 72,2 12 x 5 kW 4 x 15 kW 3 x 15 kW 1 x 18 kW
VOLTMAX 72 72 245 664 86,6 12 x 6 kW 4 x 18 kW 3 x 18 kW 1 x 18 kW
VOLTMAX 75 75 255 900 90,2 15 x 5 kW 5 x 15 kW 4 x 15 kW 1 x 15 kW
VOLTMAX 90 90 307 80 108,3 15 x 6 kW 5 x 18 kW 4 x 18 kW 1 x 18 kW
VOLTMAX 99 99 337 788 119,1 9 x 5 kW + 9 x 6 kW
3 x 33 kW 2 x 33 kW 1 x 33 kW
VOLTMAX 108 108 368 496 129,9 18 x 6 kW 3 x 36 kW 2 x 36 kW 1 x 36 kW
VOLTMAX 120 120 409 440 144,3 24 x 5 kW 4 x 30 kW 3 x 30 kW 1 x 30 kW
VOLTMAX 132 132 450 384 158,8 12 x 5 kW + 12 x 6 kW
4 x 33 kW 3 x 33 kW 1 x 33 kW
VOLTMAX 144 144 491 328 173,2 24 x 6 kW 4 x 36 kW 3 x 36 kW 1 x 36 kW
VOLTMAX 150 150 511 800 180,4 30 x 5 kW 5 x 30 kW 4 x 30 kW 1 x 30 kW
VOLTMAX 165 165 562 980 198,5 15 x 5 kW + 15 x 6 kW
5 x 33 kW 4 x 33 kW 1 x 33 kW
VOLTMAX 180 180 614 160 216,5 30 x 6 kW 5 x 36 kW 4 x 36 kW 1 x 36 kW 1 Electrical supply 480 V - 1 phase (L1-L2-L3) with 3 conductors 90°C with a ground.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 6.
Table 6 : VOLTMAX 600 VAC / 60 Hz / 3 Phases1 Capacity STG Series SCR Series
Model kW BTU/h Amps Electrical element(s)
240 V Stage Relay Model kW
VOLTMAX 30 30 102 360 28,9 6 x 5 kW 2 x 15 kW 1 x 15 kW 1 x 15 kW
VOLTMAX 36 36 122 832 34,6 6 x 6 kW 2 x 18 kW 1 x 18 kW 1 x 18 kW
VOLTMAX 45 45 153 540 43,3 9 x 5 kW 3 x 15 kW 2 x 15 kW 1 x 15 kW
VOLTMAX 54 54 184 248 52 9 x 6 kW 3 x 18 kW 2 x 18 kW 1 x 18 kW
VOLTMAX 60 60 204 720 57,7 12 x 5 kW 4 x 15 kW 3 x 15 kW 1 x 18 kW
VOLTMAX 72 72 245 664 69,3 12 x 6 kW 4 x 18 kW 3 x 18 kW 1 x 18 kW
VOLTMAX 75 75 255 900 72,2 15 x 5 kW 5 x 15 kW 4 x 15 kW 1 x 15 kW
VOLTMAX 90 90 307 80 86,6 15 x 6 kW 5 x 18 kW 4 x 18 kW 1 x 18 kW
VOLTMAX 99 99 337 788 95,3 9 x 5 kW + 9 x 6 kW
3 x 33 kW 2 x 33 kW 1 x 33 kW
VOLTMAX 108 108 368 496 103,9 18 x 6 kW 3 x 36 kW 2 x 36 kW 1 x 36 kW
VOLTMAX 120 120 409 440 115,5 24 x 5 kW 4 x 30 kW 3 x 30 kW 1 x 30 kW
VOLTMAX 132 132 450 384 127 12 x 5 kW + 12 x 6 kW
4 x 33 kW 3 x 33 kW 1 x 33 kW
VOLTMAX 144 144 491 328 138,6 24 x 6 kW 4 x 36 kW 3 x 36 kW 1 x 36 kW
VOLTMAX 150 150 511 800 144,3 30 x 5 kW 5 x 30 kW 4 x 30 kW 1 x 30 kW
VOLTMAX 165 165 562 980 158,8 15 x 5 kW + 15 x 6 kW
5 x 33 kW 4 x 33 kW 1 x 33 kW
VOLTMAX 180 180 614 160 173,2 30 x 6 kW 5 x 36 kW 4 x 36 kW 1 x 36 kW 1 Electrical supply 600 V - 1 phase (L1-L2-L3) with 3 conductors 90°C with a ground.
Tableau 7 : Maximal service pressure
VOLTMAX 90 kW and less More than 90 kW
Maximum operating pressure 30 PSI 60 PSI
Optional maximum operating pressure 70 PSI* 125 PSI
* Model from 23 to 90 kW are available at a maximum operating pressure of 125 PSI, but size of the unit will be the same as model of more than 90 kW.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 7.
BOILER DIMENSIONS AND CHARACTERISTIC: MODELS 90KW OR LESS
* Return sensor available with the " SCR SERIES " configuration. ** Optional disconnect switch available on " THREE-PHASE " models. *** Solid state SCR relay available with the " SCR SERIES " configuration. **** Low water cut-off is optional.
BOILER CONNECTIONS
1 Boiler outlet 1 1/2" NPT M
2 Boiler inlet 1 1/2" NPT M
3 Pressure relief valve 3/4" NPT F
4 Drain valve 3/4" NPT F
5* Access to the return sensor 1/2" NPT F
MIN. CLEARANCES FOR INSTALLATION &
MAINTENANCE
Left and Right sides 3"/ 76mm
Rear 3"/ 76mm
Front 24" / 610mm
Bottom 0" / 0mm
Top 32" / 813mm
GENERAL INFORMATIONS
Weight 310lbs / 141kg
Water Volume 11 Us gal. / 41.6 liters
Max. operating pressure
STANDARD: 30psi OPTION: 70 PSI *
*Available at 125PSI (See Shop Drawing 99-180KW)
COMPONENTS IDENTIFICATION
A Electrical main supply
B Boiler controller
C "On/Off" switch
D** Disconnect switch & rotary handle
E Fuses for controls
F*** Solid state SCR relay
G**** Low water cut-off, test button and indicator lights
H Electrical control access door
I Door handle for electric access with lock
J Electrical control wires access holes
K Access door power circuit
L Access cover to Heating elements
M Heating elements
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 8.
BOILER DIMENSIONS AND CHARACTERISTIC: MODELS 90KW TO 180KW
* Return sensor available with the " SCR Series " configuration.
** Optional disconnect switch available on " THREE-PHASE" models.
*** Solid state SCR relay available with the " SCR Series " configuration.
**** Low water cut-off is standard for models more than 117kw.
BOILER CONNECTIONS
1 Boiler outlet 1 1/2" NPT M
2 Boiler inlet 1 1/2" NPT M
3 Pressure relief valve 3/4" NPT F
4 Drain valve 3/4" NPT F
5* Access to the return sensor 1/2" NPT F
MIN. CLEARANCES FOR INSTALLATION & MAINTENANCE
Left and Right sides 3"/ 76mm
Rear 3"/ 76mm
Front 24" / 610mm
Bottom 0" / 0mm
Top 32" / 813mm
GENERAL INFORMATIONS
Weight 550lbs / 250kg
Water Volume 30 gal. Us/ 113.5 liters
Max. operating pressure
STANDARD: 60psi OPTION: 125 PSI
COMPONENTS IDENTIFICATION
A Electrical main supply
B Boiler controller
C "On/Off" switch
D** Disconnect switch & rotary handle
E Fuses for controls
F*** Solid state SCR relay
G**** Low water cut-off, test button and indicator lights
H Electrical control access door
I Door handle for electric access with lock
J Electrical control wires access holes
K Access door power circuit
L Access cover to Heating elements
M Heating elements
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 9.
General Safety Precautions
Be sure to read and understand the entire Installation & operation manual before attempting to install or to operate this water heater. Pay attention to the following General Safety Precautions. Failure to follow these warnings could cause property damage, bodily injury or death. Should you have any problems understanding the instructions in this manual, STOP, and get help from a qualified installer or technician
SECTION 2 : INTRODUCTION
These important safeguards and instruction appearing in this manual are not meant to cover all possible conditions and situations that may occur. Common sense, caution and care are factors that cannot be built into every product. These factors must be supplied by the person(s) caring for and operating the unit.
2.1 LOCAL INSTALLATION REGULATIONS This electric boiler must be installed in accordance with these instructions and in conformity with local codes, or in the absence of local codes, with the National Plumbing Code and the National Electric Code, current edition. In any case where instructions in this manual differ from local or national codes, the local or national codes take precedence.
2.2 CORROSIVE ENVIRONMENT The electric boiler must not be installed near an air duct supplying corrosive atmosphere or with high humidity content. When a boiler defect is caused by such conditions, the warranty will not apply.
2.3 INSPECTION UPON RECEPTION Inspect the electric boiler for possible shipping damage. The manufacturer’s responsibility ceases upon delivery of goods to the carrier in good condition. The Consignee must file any claims for damage, shortage in shipments, or non-delivery immediately against the carrier.
2.4 TO BE CHECKED Please refer to the rating plate on the unit to ensure that you have the correct model and voltage in hand.
List of components shipped with the unit:
• Pressure relief valve set at 30 PSI. • Drain valve. • Temperature & pressure indicator • Outdoor temperature sensor • Installation and operating manual
The electric boiler should not be installed where it may damage the adjacent structures or lower floors in the event of leakage of the tank or connections. If this cannot be avoided, install a non-flammable tray or bowl under the boiler to collect and drain water from leaks. NOTE: Any tray or cuvette MUST conform to local codes.
!
AVERTISSEMENT !
WARNING !
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 10.
SECTION 3 : INSTALLATION
The manufacturer’s warranty does not cover any damage or defect caused by installation, or attachment, or use of any special attachment other than those authorized by the manufacturer into, onto, or in conjunction with the water heater. The use of such unauthorized devices may shorten the life of the boiler and may endanger life and property. The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such unauthorized devices
3.1 SAFETY MEASURES Any commercial installation will be equipped with a safety valve that limits the maximum working pressure to the maximum design pressure of the tank. The maximum operating pressure of the VOLTMAX Boiler with a power of 90kW and less (5 elements) is 30 psi or 70 psi, depending on the options chosen. The maximum operating pressure of the VOLTMAX boiler with a power of more than 90kW (10 elements) is 60 psi or 125 psi, depending on the options selected. See boiler data sheet for maximum operating pressure. The boiler is equipped with an automatic high limit temperature control set at 210°F (99°C) and a second manual high limit temperature settable. This electric boiler is designed to operate at a maximum operating temperature of 200 ° F (93 ° C). The boiler is designed for use in a hot water heating system only.
The heat transfer fluid must be water or an antifreeze water / propylene glycol solution or an antifreeze water / ethylene glycol solution specially designed for heating systems. The maximum concentration of solution must be a maximum of 50%.
3.2 LOCATION The electric boiler should be installed in a clean, dry location. Long hot water lines should be insulated to conserve water and energy. The electric boiler and water lines should be protected from exposure to freezing temperature. The boiler can be mounted vertically or horizontally directly on a solid surface. Vertical supports are provided and allow installation on the floor; No wall bracket is included with the equipment. The electric boiler must be located or protected to avoid risk of physical damage, such as from moving vehicles, flooding, etc.
The location must have sufficient ventilation to maintain an ambient temperature not exceeding 90°F (32°C).
3.3 CLEARANCES For adequate inspection and servicing the following minimum clearance is necessary:
* A minimum clearance of 32 inches. For units equipped with 18 kW elements (25 in. For 15 kW elements) is required for possible replacement of heating elements. ** The left side of the control panel, where the boiler ON / OFF switch is located, must remain visible after installation. Otherwise, a label indicating its location must be affixed to the control panel indicating its position.
3.4 PIPING INSTALLATION The location of the inlet and outlet piping shall conform to the various configurations shown in Figure 1. You will find typical connection diagrams to the Figure 3, the Figure 4 and the Figure 5.
MISE EN GARDE !
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 11.
Figure 1 : Possible pipe flow configurations
3.4.1.1 Boiler piping connection The boiler is equipped with two fittings on each side of the unit. One of the bottom connections must be used for the heating return (inlet) and one of the top connections must be used for supplying the heating system (outlet). The outlet and inlet size are 1½ "NPTM threaded steel pipes, for the VOLTMAX with a power of 90kW and less (5 elements) and 2½ "NPTM threaded steel pipes for the VOLTMAX with a power of More than 90kW (10 elements). Installation of plugs on the inlet and exhaust ducts is recommended to facilitate the disconnection and maintenance of the boiler. When connecting different types of pipes (galvanized steel and copper), use dielectric joints (insulation) to protect the boiler and piping. Use only new and clean pipes as piping connection to the boiler. Local codes or regulations may dictate the exact type of material to be used. Insulate all piping containing hot water, especially in an unheated environment. Install faucets for easy maintenance. Install a thermometer on the inlet and outlet duct(s). Close the unused openings on the boiler. Do not block the safety valve, this may cause loss, damage or injury. 3.4.1.2 Auxiliary boiler piping connection When an auxiliary boiler used as back up is twinned to the DTH Ultra boiler to act as a back-
up controlled by the DTH Ultra, the auxiliary boiler shall preferably be installed downstream of the electric boiler as shown on Figure 5.
3.4.1.3 Safety valve The installation of a safety valve is an integral part of the boiler’s installation. The trigger point of the valve must not exceed the design pressure of the boiler as indicated on its registration and identification plate. The valve must comply with the ASME Boiler and Pressure Vessel Code and limit the boiler maximum operating pressure. The safety valve is a security component, not a control component. The capacity of the safety valve expressed in BTU / hour must equal or exceed the rating on the nameplate of the boiler (s). Connect the exhaust of the safety valve to a drain line. The lower end of this conduit shall be at least 6" (15 cm) from the floor drain away from any electrical component. The drain line must be directed downwards from the exhaust of the safety valve to ensure complete drainage by gravity. The diameter of the drainpipe must not be less than that of the exhaust of the valve. The end of the conduit must not be threaded or hidden and must be protected from freezing. No valves, valves or valves shall be installed on the pipe. The installation of the safety valves is governed by the local code. 3.4.1.4 System pressure control and expansion tank Pressure control devices within the system ensure that each component operates within minimum and maximum allowable pressures and maintain minimum pressure for all normal operating temperatures. They also allow air
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 12.
bleeding, prevent cavitation at the pump inlet and prevent water from boiling within the system; all this is accomplished with minimal addition of new water. The increase in boiler water volume resulting from higher temperature is stored in the expansion tank during periods of high operating temperature and is returned to the system when the temperature decreases. The expansion tank must be able to store the required volume of boiler water during maximum design operating temperature without exceeding the maximum allowable operating pressure, and to maintain the required minimum pressure when the system is cold. Contact your installing contractor, plumbing supply house, or local plumbing inspector for assistance. The point where the expansion tank is connected should be carefully selected to avoid the possibility that normal operation of automatic check or manual valves will isolate the tank from a hot boiler or any part of the system. The expansion tank should preferably be located on the suction or intake side of the pump. 3.4.1.5 Water pressure makeup regulator Make-up systems must be employed as required by codes. An automatic fill valve (automatic pressure regulator) must be used with a backflow preventer as required, to maintain minimum system pressure by supplying water to make up for leakage. 3.4.1.6 Air bleeder The air contained in the heated water must be removed from the system to prevent corrosion Installation of manual or automatic air vents is required to eliminate all air from the boiler and the heating distribution system. The main air eliminator must be installed near the outlet of the boiler on the highest point of the main supply piping. It is imperative to ensure that all air possibly located in the boiler be eliminated at all time.
Regularly purge air from the pipes and beware that the heated water does not cause injury or damage. If the boiler is located at a location higher than the heat distribution system such as a heated floor, an automatic air eliminator should be installed close to the boiler outlet.
3.4.1.7 Circulating pump The pump can be located either just upstream or just downstream from the boiler. On installation where the operating pressure is high, the preferred location of the circulator pump is upstream of the boiler in such a way as to lower the pressure on the boiler when the pump will be in operation. The pump capacity required is determined in relation to the capacity of the boiler installed and the type of heating distribution system on which it will be connected. They are generally designed for an operation at a differential of temperature (Delta T0) of 10 to 20F between the supply and return temperature to the boiler. Use the following equation to determine the required water flow. Pump flow rate = Boiler power ÷ Delta T ÷ 500
· Pump flow rate is expressed in US gallons per minute or GPM.
· The Boiler output (in net BTU per hour) is the maximum amount of heat to be transferred through the heating loop to meet the heating load.
· Delta T: The boiler water temperature drop
For example, an electric boiler rated at 180KW has an output capacity of 614 160 BTU per hour. The system is designed for a temperature drop of 20°F.
Required pump flow rate = 614,160 ¸ 20 ¸ 500 = 61,4 GPM For example, an 180kW electric boiler has a power of 614,160 BTU/h. The system is designed for a drop-in temperature (Delta T) of 20°F.
Flow required = 614,160 ¸ 20 ¸ 500 = 61.4 GPM The following table lists the required pump flow rate in relation to the boiler capacity and Delta T.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 13.
Table 9 : Temperature rise vs flow rate (GPM)
MODEL DELTA T
0
10oF 20
oF 30
oF 40
oF
VOLTMAX 23 15.7 7.8 5.2 3.9
VOLTMAX 27 18.4 9.2 6.1 4.6
VOLTMAX 30 20.5 10.2 6.8 5.1
VOLTMAX 36 24.6 12.3 8.2 6.1
VOLTMAX 40 27.3 13.6 9.1 6.8
VOLTMAX 41 28.0 14.0 9.3 7.0
VOLTMAX 45 30.7 15.4 10.2 7.7
VOLTMAX 48 32.8 16.4 10.9 8.2
VOLTMAX 50 34.1 17.1 11.4 8.5
VOLTMAX 54 36.8 18.4 12.3 9.2
VOLTMAX 55 37.5 18.8 12.5 9.4
VOLTMAX 60 40.9 20.5 13.6 10.2
VOLTMAX 66 46.4 23.2 15.5 11.6
VOLTMAX 68 45.0 22.5 15.0 11.3
VOLTMAX 72 49.1 24.6 16.4 12.3
VOLTMAX 75 51.2 25.6 17.1 12.8
VOLTMAX 90 61.7 30.8 20.6 15.4
VOLTMAX 99 67.8 33.9 22.6 17.0
VOLTMAX 108 73.7 36.8 24.6 18.4
VOLTMAX 120 82.2 41.1 27.4 16.1
VOLTMAX 132 90.5 45.2 30.2 22.6
VOLTMAX 144 98.7 49.3 32.9 24.7
VOLTMAX 150 102.4 51.2 34.1 25.6
VOLTMAX 165 112.6 56.3 37.5 28.1
VOLTMAX 180 122.8 61.4 40.9 30.7
3.4.2 DRAIN FAUCET A drain valve is installed behind the unit. It allows the boiler to be emptied, to make possible the replacement of defective components.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 14.
3.4.3 PRESSURE LOSS The graph of pressure loss due to friction of water inside the VOLTMAX boiler is shown in the following
Figure 2 : Pressure loss (FTH) as a function of the flow rate of heated water (GPM)
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6 :
Mu
ltip
le b
oiler
para
llel in
sta
llati
on
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 1
9.
Fig
ure
7 :
Basic
in
sta
llati
on
wit
h a
uxilia
ry b
oil
er
for
pro
du
cti
on
of
do
mesti
c h
ot
wate
r an
d h
eati
ng
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 20.
3.5 ELECTRICAL CONNECTIONS Wiring must conform to the National Electrical Code and to state or local code requirements. The electric boiler must be electrically grounded in accordance with local codes, or, in the absence of local codes, with the National Electrical Code.
3.5.1 MAIN ELECTRICAL SUPPLY The power supply must be a 208 or 240-volt circuit (single-phase or three-phase, 60Hz), 480 volts (three-phase, 60 Hz) or 600 volts (three-phase, 60 Hz) protected by an appropriately sized breaker. The wiring rating (3 wires + ground) must be adequate. Refer to the boiler rating plate to select the breaker capacity and wiring rating
3.5.2 PUMP SUPPLY The VOLTMAX Electric boiler (SCR models) can control 1 or 2 pumps of the distribution system. According to the working configuration of the pump, the contact of the controller will function differently. During a heat demand on W1 or W2, the contact between Pc and P1 or Pc and P2 will be used to start an external pump relay (maximum of 3 amps.). Depending on the configurations selected in the controller (section Erreur ! Source du renvoi introuvable.), the pump P2 can have priority over the pump P1 and if this function is selected, the controller W2 and the pump P2 will be given priority by opening the pump contact P1. N.B. The VOLTMAX boiler is not designed to heat without a water circulation in its tank. Therefore, if external pump controls are used, they must be interlocked with the operating authorization on W1 of the controller.
3.5.3 CONNECTION OF EXTERNAL SIGNALS TO THE CONTROLLER
The connection of all external signals is made directly on the boiler controller on terminals located on top of it. See the connection diagram on Figure 8 and Figure 9. Cables used for the connections shall resist temperature up to 90 °C.
3.5.3.1 Connecting the building heat demand signal Upon reception of a closed contact connected to terminals 24V+ and W1 or W2, the corresponding circulating pump P1 or P2 will start and the boiler will be allowed to operate. If external controllers control the heating system pumps, they must provide the operating authorization signal. The boiler must not receive a heat demand without the circulation pumps running. On heating systems when water circulation is continuous, the heat demand control can be connected to the 24V+ and W1 terminals. The heating elements will then be active and available only when there is a request (dry contact). If the heating system is designed to keep water warm with continuous circulation, a jumper (jumper) must be installed on the 24V+ and W1 terminals to maintain the boiler in demand. The boiler will then attempt to maintain the water temperature at the set-point. Operation with an upper fixed set-point W2 can be established by connecting the auxiliary heating demand signal (Dry contact) of a thermostat to the 24V+ and W2 of the terminal block. In all operating modes of the controller, a heat demand on W1 and W2/DHW (close contact) must be present to DI1 or DI2 to allow the operation of the boiler. The only exception is in domestic hot water mode (DHW) with an indirect water heater where the minimum boiler temperature shall be maintained.
3.5.3.2 Connecting au auxiliary boiler (Available only on SCR models) The boiler controller is designed to allow the operation of a second boiler or an auxiliary gas or oil fired boiler according to two different mode of operation “Auxiliary Backup” or Dual-Energy”. To do so, connect the TT terminals of the auxiliary boiler to terminals AUX of the VOLTMAX. The maximum capacity of this contact is 3A/120Vac.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 21.
3.5.3.3 Connection of an “Unoccupied signal” of the building. This function allows dropping the boiler temperature during periods where the building is not used and this without having to lower all the room thermostats of the building. To do so, a signal (dry contact) will have to be connected to terminal OCC. The contact shall be close during the periods of temperature drop. You can also manage the periods of temperature drop by setting the parameters from the internal clock of the controller. 3.5.3.4 Connection of an indirect domestic hot water heater The VOLTMAX electric boiler can be used not only to fill the heating requirements of the building but also to fill its domestic hot water needs using an indirect domestic hot water heater such as our TURBOMAX series. To do so, connect the signal (dry contact) of indirect water heater temperature control to the terminal 24V+ and W2/DHW. This will activate the circulating pump supplying the water heater (if properly installed).
3.5.3.5 Connection of a dual-energy signal The VOLTMAX can be operated in a dual-energy mode with an auxiliary boiler. To do so, connect the normally close contact of the dual energy controller to terminals 24V+ & BI-E to operate with the electric boiler. See section Erreur ! Source du renvoi introuvable. for more details on the sequence of operation in dual energy. 3.5.3.6 Connection of an outdoor temperature sensor If you wish to modulate the boiler water temperature according to the outdoor temperature (Outdoor Reset, ORST) and also wish to stop the operation of the boiler when the outdoor temp. reaches a selected value (See section Erreur ! Source du renvoi introuvable.), then the outdoor sensor supplied with the unit or a corresponding signal coming from the network system shall be connected to terminals S. Ext. of the controller. This sensor does not need to be connected if the boiler application is for a fixed set-point operation. N.B. Do not install a jumper if the outside sensor is not used. Outdoor sensor location
o Outside the building at a location that best represents the heat demand of the building (a wall facing north for most of the buildings and on a south one on buildings with large windows facing south).
o It should not be exposed to external heat sources (dryer outlet, window openings, non-insulated walls).
o It should not be installed in a location where it could be covered with snow.
Installation: 1. Drill a 9/64” dia. hole through the wall and
insert the sensor cable. 2. Fix the sensor cover to the wall using
supplied screw. 3. With an electric cable (100ft max.) having 2
conductors 20ga. connect one end of this cable to the sensor cable using twist-on wire connectors and the other end to terminals S. Ext (G. & AI2) of the boiler.
3.5.3.7 Remote controller used to determine the target boiler temperature An external controller (such as a central building energy management system) can be used to determine the boiler target temperature required for the building. To do so, the external controller shall give a 0 to 10VDC signal connected to terminals 0-10Vdc G & 0-10Vdc T° of the controller. 3.5.3.8 Power limiting device An external controller providing a 0-10Vdc signal could be used to manage the capacity (kW) of the boiler. Example: An application where the main electrical service supply of the building is limited or when the electricity rate is billed according to the maximum peak loads of the building. To do so, the external controller shall be connected to terminals 0-10Vdc G & 0-10V cap. The capacity of the boiler could be manually limited by adjusting some of the controller parameters. See sections Erreur ! Source du renvoi introuvable. for more details 3.5.3.9 Alarm An alarm signal (dry contact) is available on the boiler to advise the user of an alarm situation. The capacity of the contact is 3A resistive/1A inductive on terminal AL/AL
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 2
2.
F
igu
re 8
: E
LE
CT
RIC
AL
CO
NN
EC
TIO
NS
OF
TH
E I
NP
UT
AN
D O
UT
PU
T S
IGN
AL
S T
O T
HE
CO
NT
RO
LL
ER
(S
CR
MO
DE
L)
Fig
ure
9 :
EL
EC
TR
ICA
L C
ON
NE
CT
ION
S O
F T
HE
IN
PU
T A
ND
OU
TP
UT
SIG
NA
LS
TO
TH
E C
ON
TR
OL
LE
R (
ST
G M
OD
EL
)
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 2
3.
Fig
ure
10:
Co
ntr
ol
Syste
m E
lectr
ical D
iag
ram
(S
CR
mo
del)
(2 t
o 4
sta
ges)
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 2
4.
Fig
ure
11:
Co
ntr
ol
Syste
m E
lectr
ical D
iag
ram
(S
CR
mo
del)
(5 t
o 6
sta
ges)
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 2
5.
Fig
ure
12:
Co
ntr
ol
Syste
m E
lectr
ical D
iag
ram
(S
TG
mo
del)
(2 t
o 6
sta
ges)
Stage 1-1
SCR1
TITRE:
Diagramme électrique
VOLTMAX-SCR: 23 @ 72 kW
208-240V / 1ph
NOM DE FICHIER:
VOLTMAX-SCR: 72-208/
240/1PH
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
THERMO 2000 inc.
500, 9e avenue
Richmond (Québec)
J0B 2H0
REV. DESCRIPTION DATE Par/Verif
SCR-1
24
Com
24
VAC -+
T1 L1
L1 L2
TX-1
240-208V
x120V
Alimentation 120V Supply
voir détails de contrôle/See control details
R: Relais de puissance / Power relay
Circuit 240 & 208 x 1 ph CircuitBasse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-AR1 CR1
CA
CB
CC
G
DO2-1 R-2
DO3-1 R-3
DO4-1 R-4
DO1-1 R-5
LWCO
(OPTION)
1/2A 24Vac
Extension
R14Extension
R14
Extension
R14
Extension
R14
SCR
TX-2
120:24
40VA
Controler
TM171
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
CB
CC
SR-2 R-6
LWCO : Bas niveau d’eau / Low water cut off
HL-MR: Haute limite manuel reset / High limit manual reset
HL-AR: Haute limite reset auto./ High limit automatic reset
SCR: Relais de modulation / Modulating relay
C : Contacteur principal /Main contactor
R: Relais de puissance / Power relay
Breaker
R2
R3
R4
R5
R6
Press.
T in
T out
RD
VT
GN
CR1- 2
HL&LWCO
W2/DHW
W1
120Vac
R2
stg-2
R3
stg-3
R4
stg-4R5
stg-5
ALARM
POMPE
CHAUFF.
W1
POMPE
W2/
DHW
SCRSTATIC RELAY
OCC.
(On 5&6 stg models)
Note 1COM.
Filage en usine
Factory wiring
Filage au chantier
Field wiring
CR-1
SR-1
0-10Vdc
AUX.AUX.
24Vac+
24Vac-
Outdoor
T sensor
BACnet
MSTP
120 ohm
24Vac +
+ Sens. Ext.
RS485
Note2Note2
24Vac-
24Vac
24Vac+
TM171PFE03 TM171EP14R TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
DO1 DO2 DO3 DO4 N
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
24V:50mA
5V: 20mA
DIP
SWITCHCAN
1 2 3 4 5 6 7 L H GS
1 2 3 4
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
BU
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
VT
BK
RD
VT
BN
BK
RD
WH
TN
BU
RD
BN
GY
YE
RD
GY
CT
GY
VT
YE
OG
YE
OG
24Vac+
GN
VT
GN
TN
RMSP
0-10VdcCap. T G
OG
BK
YE
BN
OG
YE
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
BU
BU
- -
SR-2
120Vac R6
NOTE 1: Ce contact est utilisé pour contrôler une
chaudière auxiliaire sur les modèles ayant 4 stages et
moins / This contact isused to control an auxiliary
boiler on models having 4stages and less.
CA
BN
GN
TN
BK
BK
4 stg models
5 stg models
6 stg models
3 & 4 stg models
5 & 6 stg models
Stage 1
SCR
TITRE:
Diagramme électrique
VOLTMAX: 23 @ 75kW
208-240V/3ph
NOM DE FICHIER:
VOLTMAX
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
THERMO 2000 inc.
500, 9e avenue
Richmond (Québec)
J0B 2H0
REV. DESCRIPTION DATE Par/Verif
SCR
24
Com
24
VAC -+
T1
L1
T2 L2
R2/B
R-4/B
L1 L2 L3
TX-1
208/240
x120V
Alimentation 120V Supply
voir détails de contrôle/See control details
CA
CB
CD
CE
Circuit 208V ou/or 240V x 3 ph CircuitBasse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-ARCR1
SCR
CA
CB
CC
CD
R-2A
R-4/A
G
DO2-1 R-2
R-5/B
R-5/A
DO3-1 R-3
DO4-1 R-4
DO1-1 R-5
CE
TDR
TDR
LWCO
24Vac
Extension
R14Extension
R14
Extension
R14
Extension
R14
SCR
TX-2
120:24
Controler
TM171LWCO : Bas niveau d’eau / Low water cut off
HL-MR: Haute limite manuel reset / High limit manual reset
HL-AR: Haute limite reset auto./ High limit automatic reset
SCR: Relais de modulation / Modulating relayC : Contacteur principal /Main contactor
R: Relais de puissance / Power relay
Sectionneur /
disconnect
OPTION
R-3/B
R-3/A
Stage 2
Stage 3
EL#3
EL#2
EL#4
EL#5CC
Fusible
(Voir note 1)
Remplacable par
un relais
standard 2 poles
Note 1: En Option sur les modèles dont l’ampérage max. est
inférieure à 120A. / In option on models on models having an
amperage of 120A and less.
Press.
T in
T out
RD
VT
GN
CR1- 2
HL&LWCO
W2/DHW
W1
120Vac
R2
stg-2
R3
stg-3
R4
stg-4R5
stg-5
ALARM
POMPE
CHAUFF.
W1
POMPE
W2/
DHW
SCR
OCC.(On 5 stg models)
Note 2COM.
Filage en usine
Factory wiring
Filage au chantier
Field wiring
CR-1
SR-1
0-10Vdc
AUX.AUX.
24Vac+
24Vac-
Outdoor
T sensor
BACnet
MSTP
120 ohm
24Vac +
+ Sens. Ext.
RS485
Note2Note2
24Vac-
24Vac
24Vac+
TM171PFE03 TM171EP14R TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
DO1 DO2 DO3 DO4 N
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
24V:50mA
5V: 20mA
DIP
SWITCHCAN
1 2 3 4 5 6 7 L H GS
1 2 3 4
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
BU
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
VT
BK
RD
VT
BN
BK
RD
WH
TN
BU
RD
BN
GY
YE
RD
GY
CT
GY
VT
YE
OG
YE
OG
24Vac+
GN
VT
GN
TN
RMSP
0-10VdcCap. T G
OG
BK
YE
BN
OG
YE
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
BU
BU
- -
BK
BK
Note 2: Ce contact est utilisé pour contrôler une chaudière
auxiliaire sur les modèles ayant 4 stages et moins / This contact
isused to control an auxiliary boiler on models having 4stages
and less.
4 stg models
5 stg models
4 stg models
5 stg models
4 &5 stg models
Stage 1
SCR1
TITRE:
Diagramme élect. / Electrical dia.
VOLTMAX SCR 30@90 kW
480&600V / 3ph
NOM DE FICHIER:
VOLTMAX: 90- 480&600
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
THERMO 2000 inc.
500, 9e avenue
Richmond (Québec)
J0B 2H0
REV. DESCRIPTION DATE Par/Verif
Stage 2
Stage 3
SCR-1
24
Com
24
VAC -+
T1 L1
T2 L2
R2B
R3B
L1 L2 L3
TX-1
600:120
Alimentation 120V Supply
voir détails de contrôle/See control details
CA
CB
Circuit 480 ou 600V x 3 ph Circuit Basse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-AR
1
CR1
E2
CA
CB
CC
R2/A
R3A
G
CC
DO2-1
Stage 5
R5B
R5A
Stage 4
R4B
R4A
DO3-1 R-3
DO4-1 R-4
DO1-1 R-5
LWCO
(Option)
24Vac
Extension
R14Extension
R14
Extension
R14
Extension
R14
SCR
TX-2
120:24
40VA
Controler
TM171
LWCO : Bas niveau d’eau / Low water cut offHL-MR: Haute limite manuel reset / High limit manual resetHL-AR: Haute limite reset auto./ High limit automatic reset
SCR: Relais de modulation / Modulating relayC : Contacteur principal /Main contactor
R: Relais de puissance / Power relay
Sectionneur /
disconnect
OPTION
Fusible / Fuse
(note 2) R-2Fusible / Fuse
(note 2)
Fusible / Fuse
(note 2)
Note 1: Lorsque le stage 5 n’est pas utilisé, ce contact
sert au démarrage de la chaudière Auxiliaire / When
stage 5 is not used, this contact will be used to control
the Auxiliary boiler.
Note 2: Offert en Option sur les modèles dont le
courant nominal est de 120A et moins / Optional on
models having a nominal amperage less than 120A.
Note 3: La configuration des éléments peut être en
« Delta » ou en « Y » / Heating element configuration
could be in « Delta » or « Y ».
Press.
T in
T out
RD
VT
BK
CR1- 2
HL&LWCO
Bi-Energ.
W2/DHW
W1
120Vac
R2
stg-2
R3
stg-3
R4
stg-4R5
stg-5
ALARM
POMPE
CHAUFF.
W1
POMPE
W2/
DHW
SCRSTATIC RELAY
OCCUPATION
30 @ 90 kW
(On 5 stg models)
Note 1COM.
Filage en usine
Factory wiring
Filage au chantier
Field wiring
CR-1
SR
0-10Vdc
AUX.AUX.
24Vac+
24Vac-
Outdoor
T sensor
BACnet
MSTP
120 ohm
24Vac +
+ Sens. Ext.
RS485
Note2Note2
24Vac-
24Vac
24Vac+
TM171PFE03 TM171EP14R TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
DO1 DO2 DO3 DO4 N
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
24V:50mA
5V: 20mA
DIP
SWITCHCAN
1 2 3 4 5 6 7 L H GS
1 2 3 4
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
BU
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
VT
BK
RD
VT
BN
BK
RD
WH
TN
BU
RD
BN
GY
YE
RD YE
CT
GY
VT
YE
OG
YE
OG
24Vac+
GN
VT
GN
TN
RMSP
0-10VdcCap. T G
OG
BK
YE
BN
OG
YE
Chaudière Aux.
Auxiliary boiler
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
BU
BU
- -
30@90
30@90
45@90
60@90
75@90
Model 30@90
Model 45@90
Model 60@90
Model 75@90
Model 30@90
Model 45@90
Model 75@90
GN
(note 3)
(note 3)
(note 3)
(note 3)
(note 3)
Stage 1-1
SCR1
TITRE:
Diagramme électrique
VOLTMAX- SCR: 99 @ 180 kW
480 & 600V / 3PH
NOM DE FICHIER:
VOLTMAX 180KW/480-600
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
REV. DESCRIPTION DATE Par/Verif
Stage 2-1
Stage 3-1
SCR-1
24
Com
24
VAC -+
T1 L1
T2 L2
R-2/B
R-3/B
L1 L2 L3
TX-1
600:120
Alimentation 120V Supply
voir détails de contrôle/See control details
CA
CB
CC
CD
Circuit 480 ou 600V x 3 ph Circuit Basse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-AR
1
CR1
E2
SCR
CA
CB
CC
CD
R-2/A
R-3/A
G
E1
Stage 1-2
SCR1
Stage 2-2
Stage 3-2
CE
DO2-1 R-2
Stage 5-1
R-5/B
R-5/A
Stage 5-2
Stage 4-1
R-4/B
R-4/A
Stage 4-2
DO3-1 R-3
DO4-1 R-4
DO1-1 R-5
CE
TDR
TDR
LWCO
(Note 3)
24Vac
Extension
R14Extension
R14
Extension
R14
Extension
R14
SCR
TX-2
120:24
Press.
T in
T out
RD
VT
GN
CR1- 2
HL&LWCO
Bi-Energ.
W2/DHW
W1
120Vac
R2
stg-2
R3
stg-3
R4
stg-4R5
stg-5
ALARM
POMPE
CHAUFF.
W1
POMPE
W2/
DHW
SCRSTATIC RELAY
OCCUPATION
99 @ 180 kW
(On 5 stg models)
Note 2COM.
Filage en usine
Factory wiring
Filage au chantier
Field wiring
Controler
TM171
CR-1
SR
0-10Vdc
AUX.AUX.
24Vac+
24Vac-
LWCO : Bas niveau d’eau / Low water cut off
HL-MR: Haute limite manuel reset / High limit manual resetHL-AR: Haute limite reset auto./ High limit automatic resetSCR: Relais de modulation / Modulating relayC : Contacteur principal /Main contactorR: Relais de puissance / Power relay
Sectionneur /
disconnect
OPTION
Fusible /Fuse
(note 1)
Note 1: En Option sur les modèles dont l’ampérage
max. est inférieure à 120A /Optional on models having
an amperage less thant 120A.
Note 2: Ce contact est utilisé pour contrôler une
chaudière auxiliaire sur les modèles ayant 4 stages et
moins / This contact is used to control an auxiliary
boiler on models having 4stages and less.
Note 3: En option sur les modèles de 120kW à 180 kW/
In option on models of 120 to 180kW
Note 4: La configuration des éléments peut être en
« Delta » ou en « Y » / Heating element configuration
could be in « Delta » or « Y ».
Outdoor
T sensor
BACnet
MSTP
120 ohm
24Vac +
+ Sens. Ext.
RS485
Note2Note2
24Vac-
24Vac
24Vac+
TM171PFE03 TM171EP14R TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
DO1 DO2 DO3 DO4 N
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
24V:50mA
5V: 20mA
DIP
SWITCHCAN
1 2 3 4 5 6 7 L H GS
1 2 3 4
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
BU
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
VT
BK
RD
VT
BN
BK
RD
WH
TN
BU
RD
BN
GY
YE
RD
GY
CT
GY
VT
YE
OG
YE
OG
24Vac+
GN
VT
GN
TN
RMSP
0-10VdcCap. T G
OG
BK
YE
BN
OG
YE
Chaudière Aux.
Auxiliary boiler
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
THERMO 2000 INC
500, 9e Ave
Richmond, QC
BU
BU
- -
Model 99@180
Model 120@180
Model 120@180
Model 99@144
Model 150@180
150@180
120@180
99@180
99@180
Model 99@108
Model 99@108
99@180
Model 99@180
Model 99@180
Model 99@180
BK
Note 4
Note 4
Note 4
Note 4
Note 4
TITRE:
Diagramme électrique
VOLTMA-STG: 23 @ 72 kW
208-240V / 1ph
NOM DE FICHIER:
VOLTMAX-SCR: 72-208/
240/1PH
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
THERMO 2000 inc.
500, 9e avenue
Richmond (Québec)
J0B 2H0
REV. DESCRIPTION DATE Par/Verif
L1 L2
TX-1
240-208V
x120V
Alimentation 120V Supply
voir détails de contrôle/See control details
R: Relais de puissance / Power relay
Circuit 240 & 208 x 1 ph CircuitBasse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-ARCR1
CA
CB
CC
G
DO2-1 R-1
DO3-1 R-2
DO4-1 R-3
DO1-1 R-4
LWCO
(OPTION)
24Vac
Extension
R14
SCR
TX-2
120:24
40VA
Controler
TM171
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
CB
CC
SR-1 R-5
LWCO : Bas niveau d’eau / Low water cut off
HL-MR: Haute limite manuel reset / High limit manual reset
HL-AR: Haute limite reset auto./ High limit automatic reset
SCR: Relais de modulation / Modulating relay
C : Contacteur principal /Main contactor
R: Relais de puissance / Power relay
Breaker
R2
R3
R4
R5
R6
CA
4 stg models
5 stg models
6 stg models
3 & 4 stg models
5 & 6 stg models
T out
RD
VT
BK
CR1- 2
HL&LWCO
W2/DHW
W1
120Vac
R5
stg-5
R2
stg-2
R3
stg-3R4
stg-4
Filage en usine
Factory wiring
Filage au chantier
Field wiring
SR
24Vac+
Outdoor
T sensor
BACnet
MSTP
24Vac
+ Sens. Ext.
RS485
Note2
24Vac-
24Vac
TM171PFE03 TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
TN
BU
RD
GY
YE
YE
OG
OG
BK
OG
YE
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
R1
stg-1
Stage 1 R1
3 stg models
SR-2 R-5
R6
stg-6
SR
TITRE:
Diagramme électrique
VOLTMAX- STG: 23 @ 75kW
208-240V/3ph
NOM DE FICHIER:
VOLTMAX
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
THERMO 2000 inc.
500, 9e avenue
Richmond (Québec)
J0B 2H0
REV. DESCRIPTION DATE Par/Verif
R2/B
R-4/B
L1 L2 L3
TX-1
208/240
x120V
Alimentation 120V Supply
voir détails de contrôle/See control details
CB
CD
CE
Circuit 208V ou/or 240V x 3 ph CircuitBasse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-ARCR1
SCR
CA
CB
CC
CD
R-2A
R-4/A
G
DO2-1 R-1
R-5/B
R-5/A
DO3-1 R-2
DO4-1 R-3
DO1-1 R-4
CE
TDR
TDR
LWCO
(Option)
24Vac
Extension
R14
SCR
TX-2
120:24
Controler
TM171LWCO : Bas niveau d’eau / Low water cut off
HL-MR: Haute limite manuel reset / High limit manual reset
HL-AR: Haute limite reset auto./ High limit automatic reset
SCR: Relais de modulation / Modulating relayC : Contacteur principal /Main contactor
R: Relais de puissance / Power relay
Sectionneur /
disconnect
OPTION
R-3/B
R-3/A
Stage 2
Stage 3
EL#3
EL#2
EL#4
EL#5CC
Fusible
(Voir note 1)
Note 1: En Option sur les modèles dont l’ampérage max. est
inférieure à 120A. / In option on models on models having an
amperage of 120A and less.
4 stg models
5 stg models
4 stg models
5 stg models
4 &5 stg models
T out
RD
VT
BK
CR1- 2
HL&LWCO
W2/DHW
W1
120Vac
R5
stg-5
R2
stg-2
R3
stg-3R4
stg-4
Filage en usine
Factory wiring
Filage au chantier
Field wiring
SR
24Vac+
Outdoor
T sensor
BACnet
MSTP
120 ohm
24Vac
+ Sens. Ext.
RS485
Note2
24Vac-
24Vac
TM171PFE03 TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
TN
BU
RD
GY
YE
YE
OG
OG
BK
OG
YE
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
R1
stg-1
R-1B
CBR-1A
Stage 1
EL#1
SR-1 R-55 stg models
3 stg models
Stage 1
TITRE:
VOLTMAX -STG : 30@90 kW
480&600V / 3phNOM DE FICHIER:
VOLTMAX 90- 480&600V
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
THERMO 2000 inc.
500, 9e avenue
Richmond (Québec)
J0B 2H0
REV. DESCRIPTION DATE Par/Verif
Stage 2
Stage 3
R-2/B
R-3/B
L1 L2 L3
TX-1
600:120
Alimentation 120V Supply
voir détails de contrôle/See control details
CA
CB
Circuit 480 ou 600V x 3 phBasse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-ARCR1
E2
CA
CB
CC
R-2/A
R-3/A
G
CC
DO2-1
Stage 5
R-5/B
R-5/A
Stage 4
R-4/B
R-4/A
DO3-1 R-2
DO4-1 R-3
DO1-1 R-4
LWCO
(Option)
24Vac
Extension
R14
TX-2
120:24
40VA
120Vac
Controler
TM171
LWCO : Bas niveau d’eau / Low water cut off (Option)
HL-MR: Haute limite manuel reset / High limit manual resetHL-AR: Haute limite reset auto./ High limit automatic resetC : Contacteur principal /Main contactor
R: Relais de puissance / Power relay
R-1
R-1A
R-1/B
SR-AO1-1 R-5
SR: Relais statique / Static relay
T out
RD
VT
BK
CR1- 2
HL&LWCO
W2/DHW
W1
120Vac
R5
stg-5
R2
stg-2
R3
stg-3R4
stg-4
Filage en usine
Factory wiring
Filage au chantier
Field wiring
SR
24Vac+
Outdoor
T sensor
BACnet
MSTP
120 ohm
24Vac
+ Sens. Ext.
RS485
Note2
24Vac-
24Vac
TM171PFE03 TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
TN
BU
RD
GY
YE
YE
OG
OG
BK
OG
YE
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
R1
stg-1
Fusible / Fuse
(note 1)
Fusible / Fuse
(note 1)
Note 1: Offert en Option sur les modèles dont le courant
nominal est de 120A et moins / Offered in option on
models having a nominal amperage less than 120A.
Fusible / Fuse
(note 1) 45@90
30@90
60@90
75@90
3 STG MODELS
2 STG MODELS
4 STG MODELS
5 STG MODELS
3 &4 STG MODELS
5 STG MODELS
Note 2: La configuration des éléments peut être en
« Delta » ou en « Y » / Heating element configuration
could be in « Delta » or « Y ».
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
Stage 1-1
SCR1
TITRE:
VOLTMAX-STG: 99 @ 180 kW
480 & 600V / 3PHNOM DE FICHIER:
VOLTMAX 180KW/480-600
PAGE
1 de 1
DATE IMPRESSION:
No DESSIN:
REV. DESCRIPTION DATE Par/Verif
Stage 2-1
Stage 3-1
R-2/B
R-3/B
L1 L2 L3
TX-1
600:120
Alimentation 120V Supply
voir détails de contrôle/See control details
CA
CB
CC
CD
Circuit 480 ou 600V x 3 ph Circuit Basse tension 120VAC Low voltage
L1N
120VAC
de TX-1
LWCO
HL-MR HL-ARCR1
CA
CB
CC
CD
1/2A
R-2/A
Model 150 à 180
G
Stage 1-2
SCR1
Stage 2-2
Stage 3-2
CE
DO2 R-1
Stage 5-1
R-5/B
R-5/A
Stage 5-2
Stage 4-1
R-4/B
R-4/A
Stage 4-2
DO3 R-2
DO4 R-3
DO1 R-4
CE
TDR
TDR
LWCO
Note 2
24Vac
Extension
R14
TX-2
120:24
T out
RD
VT
GN
CR1- 2
HL&LWCO
W2/DHW
W1
120Vac
R5
stg-5
R2
stg-2
R3
stg-3R4
stg-4
99 @ 180 kW
Filage en usine
Factory wiring
Filage au chantier
Field wiring
Controler
TM171
SR
24Vac+
LWCO : Bas niveau d’eau / Low water cut off
HL-MR: Haute limite manuel reset / High limit manual resetHL-AR: Haute limite reset auto./ High limit automatic resetSCR: Relais de modulation / Modulating relayC : Contacteur principal /Main contactorR: Relais de puissance / Power relay
Sectionneur /
disconnect
OPTION
Fusible /Fuse
(note 1)
Note 1: En Option sur les modèles dont l’ampérage
max. est inférieure à 120A / Optional on models
having an amperage less thant 120A.
Note 2: En Option sur les modèles de moins de
120kW / Optional on models less than 120kW
1/2A
Outdoor
T sensor
BACnet
MSTP
120 ohm
24Vac
+ Sens. Ext.
RS485
Note2
24Vac-
24Vac
TM171PFE03 TM171EP14R
G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC
DO1 DO2 DO3 DO4 N
DIP
SWITCHCAN
24V:50mA
5V: 20mA
1 2 3 4 5 6 7 L H GS
1 2 3 4
CAN
L H GS G AI3 AI2
ETHERNET
GS24Vac
GN
GN
BK
BU
GY
TN
BK
WH
RD
BK
TN
BU
RD
GY
YE
YE
OG
OG
BK
OG
YE
Bornes de raccordement de contrôles bas voltage
Low voltage Control terminal strip
THERMO 2000 INC
500, 9e Ave
Richmond, QC
R1
stg-1
R-1/B
R-1/A
SR1 R-5
R-1
Model 99 à 144
Model 99 à 180
Model 120 à 180
Modèles 120 à 144
150 @ 180
120 @ 180
Modèles 150 à 180
99@180
99@180
99@180
Model 99@108
Model 99@108
Model 99@108
Model 99@108
Model 99@108
Model 99@108
Model 120 à 180
Note 3: La configuration des éléments peut être en
« Delta » ou en « Y » / Heating element configuration
could be in « Delta » or « Y ».
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 34.
SECTION 4 : CONTROLLER OPERATION
4.1 USER INTERFACE The control of the boiler is ensured by a controller TM171PFE03 of the company Schneider Electric. The LCD display of the controller provides an interface for configuring and displaying the boiler parameters. A communication module also allows you to integrate the controller with an intelligent building management system (BACnet protocol). It is also equipped with an Ethernet connection. Allowing the connection to the Internet network of the building allowing to read and modify locally or remotely the boiler setting. It can be configured to send alarm messages via e-mail. Icons will also display to indicate the boiler’s current operating status. Temperature can be displayed in Celsius or Fahrenheit and text can be set to either English or French. The controller has a backlight function. It is also equipped with three indicator lights (Green / Yellow / Red). The green light indicates normal operation of the unit; the yellow light indicates that the controller has diagnosed and anomaly which requires verification by a technician. The red light indicates that the unit is currently in a critical state (high temperature alarm) or in lock out mode. More detail is provided in Section 6: Troubleshooting. The controller can also be configured to activate an audible alarm and activate an external alarm signal when an alarm condition occurs causing the boiler to fail.
Figure 13 : Illustration of the display
4.1.1 SYMBOL DESCRIPTION The main display shows most the boiler operation status information. The explanation of the main display is shown below.
Boiler operating mode
W1 Heating request 1 : On
W2 Heating request 2 : On
P1 Pump 1 : On
P2 Pump 2 : On
BIE Boiler in Bi-Energy mode
VOLTMAX Boiler : On
Bi-energy operation with auxiliary boiler
Boost mode : On
Warm Weather Shut Down : On
Alarm symbol
An alarm is active
The boiler is in lock out mode
HL High limit temperature is reached
LL Low limit (Lack of capacity)
P Alarm due to a pressure problem
A Alarm due to an electrical problem
F Alarm due to a flow problem
Se Alarm due to a sensor problem
Operating state of the boiler
T° SET-POINT
Actual set-point temperature
T° BOILER Water temperature at the outlet of the boiler
CAP (%) Percentage of power used according to boiler rated power
T° EXT Outdoor temperature measured using the outdoor sensor
KW ACT Actual power used by the boiler
PRESS. Pressure inside the boiler
STAGE Status of active stage
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 35.
4.1.2 CONTROL PANEL
Figure 14 : Control panel
On the left side of the appliance, an on / off switch (# 3) is used to operate the appliance and to reset the boiler. An indicator light showing the status of the low water level cut off and a test button (# 1) is standard for models 120 kW and above. The control circuit fuses (# 2) are accessible from the left side of the unit.
4.1.3 NAVIGATION AND ADJUSTEMENTS
The navigation within the display is done with the five pushbuttons on the right of the screen.
Navigation between the elements is done with the up and down arrows. Use the right key to change the page in the menus. The return key will bring you to the previous menu. The return key returns you to the main display when it is pressed for 2 seconds or more. The OK button confirms the selection and allows you to edit a parameter. Only highlighted box can be modified. To modify an option, select the box to modify with the arrow keys and press OK. Change the value of the option using the arrows and confirm the change by pressing OK.
1 2 3 4
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 36.
4.1.4 MAIN MENU NAVIGATION
Figure 15 : Main menu navigation
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 37.
4.1.5 NAVIGATION IN BOILER SETTING
Figure 16 : Navigation in boiler setting menu (1/2)
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 38.
Figure 17 : Navigation in boiler setting menu (2/2)
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 39.
4.2 MAIN MENU The main menu is accessible to the user, no access code is required. The main menu is accessed by pressing one of the 5 pushbuttons. Navigation between menu is done with the arrows (up, down, left and right).
Menu Contents
Boiler status Detailed information on the boiler condition
Boiler setting Configuration of the boiler operating mode.
User setting Configuration of the controller display option
Clock setting Configuration of the internal clock
Consumption Power consumption of the boiler
4.2.1 BOILER STATUS Detailed information on the boiler condition
This menu allows the display of data not included in the main display. The boiler status menu display the measurements of temperature, pressure, flow, alarm summary, version of the programme The set of variables presented in this menu are presented in Section 4.5
4.2.2 BOILER CONFIGURATION Configuration of the boiler operating mode
This menu is accessible only to the installer or to an authorized person.
The options in the Boiler setting menu are detailed in Section 4.3. The Manufacturer access code gives access to advanced operating parameters that are not accessible to the installer and the user.
4.2.3 USER SETTING Configuration of the controller display option This menu allows the modification of different display parameters.
Parameters Description
Language Select English or French version
Temperature unit
Select the temperature units, either Celsius (C) or Fahrenheit (F)
Flow unit Select the flow unit, either US gallons per minute (USgpm) or liters per second (L / sec)
Backlight Setting the backlight mode
Internal buzzer
Setting of the internal buzzer
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 40.
4.2.4 CLOCK SETTING Internal clock configuration
Use this menu to adjust the controller’s internal clock. To set the clock correctly, you must adjust the time, minutes, and date. This adjustment is necessary in order for these modes to function properly: - The boiler’s power consumption - Limiting the boiler’s power capacity according to a schedule - The boiler’s occupation mode Battery life for the clock is at least 1 year when the controller is unpowered (at 25°C). N.B. The date and day of the week must be set correctly to ensure the controller automatically changes to daylight savings time.
4.2.5 CONSUMPTION Boiler consumption cycle report
This menu allows visualization of the boiler power consumption report. First, you must activate the beginning of the consumption cycle with the Start key. The consumption report can be saved using the Save key. And all saved report is available on the History tab. The beginning of the consumption cycles can be reset using the Reset button. The controller records up to 30 consumption report.
N.B. For the STG model, the calculation of power consumption is based on a theoretical approach, there may be differences between the actual consumption of the boiler and the consumption displayed on the screen. For the SCR model, the amp meter is used to calculated the power consumption of the boiler.
4.3 BOILER SETTINGS In order to be able to configure the boiler, it is necessary to authenticate yourself with an installer or manufacturer code. The default "Installer" access code is 1111 and can be changed in the Change password menu.
HEATING MODE W1
Boiler heating mode W1 configuration according to the type of application
HEATING MODE
W2/DHW
Boiler heating mode W2 or DHW configuration according to the type of application
PUMP SETTING
Pump contact configurations
CAPACITY LIMITING
Capacity limiting mode configuration
AUXILIARY BOILER
Auxiliary boiler mode configuration (if needed)
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 41.
LIMIT SETTING Configuration of the boiler operating limits
ALARM Configuration of the alarms
COMMUNICATION Configuration of the boiler communication parameter
OCCUPATION Configuration of the occupation parameter mode
MODE BOOST Enable Boost mode
WARM WEATHER SHUTD.
Enable warm weather shut-down function
CHANGE PASSWORD
Changing the Installer password
4.3.1 HEATING MODE W1 Selection of the operating mode In this menu, you must select an operation mode depending on the application required by your installation. A heat demand must be present on W1 and/or W2/DHW so that the boiler can heat up. During a heat demand, the boiler activates (depending on a PID curve) the number of stages required in sequence so that the boiler output temperature is maintained at the approximate set-point temperature. Here is the list of W1 heating modes:
FIXED Fixed boiler set-point
DDC 0-10 VDC
Modulation of the boiler set-point using a 0-10VDC signal
OUTD RESET
Modulation of the boiler set-point using the outdoor temperature
STOP No heating demand on W1
4.3.1.1 Fixe This mode is used for an installation where it is desired to have a fixed set-point temperature. If the boiler is thermostat-controlled with a heat demand signal on W1, the boiler uses the corresponding set-point (T. Set-point W1) as the supply temperature. 4.3.1.2 DDC 0-10 VDC (Available only on SCR model) This operating mode allows modulating the boiler set-point temperature according to a 0-10VDC signal applied the terminal 0-10VDC and G, produced by an external controller (Ex: Building Energy Management Controller). The details of the parameters in this mode are presented in Section 4.6.3.
4.3.1.3 Outdoor reset This operating mode makes it possible to modulate the boiler output set-point temperature as a function of the outdoor temperature. The outdoor temperature signal comes from the temperature sensor supplied with the boiler, which will be connected to the boiler controller. The details of the parameters are presented in Section 4.6.2 . 4.3.1.4 Stop Select this mode when there is no boiler heating demand on W1.
4.3.2 HEATING MODE W2/DHW This mode allows you to configure a second heating demand (W2) or a demand from an indirect domestic water heater (DHW). Select none if none of these functions are used. These modes are presented in detail in Section 4.7.
W2 This mode allows the W2-DHW input to be used to receive a signal (dry contact) from a 2nd stage of heating. When the contact on W2-DHW closes, the set-point temperature changes to the set value (T. Set-point W2), even if there is no demand on W1.
DHW This mode allows you to configure the demand for an indirect domestic water heater. When the DHW mode is selected, the boiler is kept at a minimum temperature (T. Min Boiler) and when contact W2 closes (Dry contact) the set-point rises equivalent to T. DHW Set-point. In addition, the PID curve is more aggressive.
4.3.3 PUMP SETTING Configuring pump contact activation (Available only on SCR model) The system allows the control of up to two pumps. Each of these pumps can be activated using a contact (Max 3 Amp.). Each pump can be activated according to different modes.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 42.
Pump Configuration Options
On W1 Dem. Contact of pump 1 is activated only when there is a demand on W1.
On W2 Dem. Contact of pump 2 is activated only when there is a demand in W2.
Priority over P1
When there is a request on W2, contact of pump 2 is activated and contact of pump 1 is deactivated.
Always On The selected pump is always on (contact is always on).
Stop The selected pump is always deactivated (contact is always off).
Off Delay The delay in seconds before the contact of the pump is deactivated.
4.3.4 CAPACITY LIMITING Adjusting the maximum authorized power
This menu allows you to configure the boiler output limit. The selection of the limit mode can be selected in the Capacity limiting menu
o None o Manual o DDC 0-10 VDC o T. Ext o Schedule
Details of each of these options are presented in Section 4.9 . N.B: It is not recommended to disconnect one of the power relays to accomplish this function.
4.3.4.1 NONE The boiler is not limited in power, the maximum power it can deliver is equivalent to its maximum rated power.
4.3.4.2 MANUAL The maximum capacity permitted of the boiler is configured in a fixed mode. Details of the variables in this mode are presented in Section 4.9.1 4.3.4.3 DCC 0-10 VDC (Available only on SCR model) A 0-10 VDC signal from a building management system can be used. The signal is treated as a function in order to limit the maximum power. In order to configure this mode, you must connect the 0-10 VDC signal to the terminal block 0-10Vdc Cap. and 0-10Vdc G. Details of the variables in this mode are presented in Section 4.9.2
4.3.4.4 T. EXT The maximum permitted power can be adjusted according to the outside temperature sensor. The outdoor temperature is used in order to limit the maximum authorized power. Details of the variables in this mode are presented in Section 4.9.3 .
4.3.4.5 Schedule The maximum authorized boiler power can be programmed according to a schedule. See section 4.9.4 for an explanation of how to modify a schedule.
4.3.5 AUXILIARY BOILER
(Available only on SCR model) The controller program has been designed to allow the operation of a second boiler or auxiliary gas or oil boiler. In order for the VOLTMAX controller to be able to record a rise in temperature caused by the operation of the auxiliary boiler, the piping installation must be carried out in series. The heating return must first pass through the auxiliary boiler before entering the boiler.
Back up boiler operation
In the event of a lack of capacity, the boiler is started to compensate. The lack of capacity is defined by the fact that the boiler output temperature is less than X degrees (Delta T. Start Aux.) relative to the set-point for duration of X min. (Auxiliary Start Delay). The auxiliary boiler will be deactivated
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 43.
when the temperature differential between the water outlet temperature and the set-point temperature is lower than Delta T. Off Aux. The operation of the auxiliary boiler is explained in detail in Section 4.10 The source of the set-point temperature control can be configured by selecting STPT source Aux. Consequently. The set-point temperature control can be dictated by the auxiliary boiler by selecting the External mode. The VOLTMAX boiler thus has no set temperature and is only used to activate the auxiliary boiler relay. The various configurations of the Aux boiler mode are the following :
None No auxiliary boiler is present
Backup Aux.
This mode allows the adjustment of a second boiler to play a Backup role
Ext Contact
Select the heating source using electrical contact to the BI-E terminal.
BiE (BI-Energy)
Select the heating source using electrical contact to the BI-E terminal with the possibility of support mode of the auxiliary boiler.
Manual Manually select the system operation mode (Electrical or Auxiliary).
N.B. The auxiliary boiler can only be switched on when a heat demand is present on W1 or / and W2 / DHW. 4.3.5.1 None This mode must be active when there is no auxiliary boiler on the hydronic heating system. 4.3.5.2 Backup Aux. The boiler will be activated according to the configuration of the lack of capacity. Details of the variables in this mode are presented in Section 4.10.1 4.3.5.3 Contact Ext. This configuration mode makes it possible to operate the electric boiler or the auxiliary boiler according to a contact. During a close contact at
the BI-E terminals, the electric boiler ( ) is activated. When the contact is open, the
auxiliary boiler ( ) will be on. The auxiliary boiler will not be allowed to operate if the electric boiler lacks capacity. Details of the variables in this mode are presented in Section 0
4.3.5.4 BiE (BI-Energy) The Bi-Energy mode allows the auxiliary boiler to operate when there is a lack of capacity. The auxiliary boiler will then be activated to help the electric boiler reach its set temperature according to the operating parameters Upon receipt of an electrical signal (contact closed at Bi-E) and a request at the terminal of W1 or W2, the contact at the terminal of AUX
will be opened and thus the electric boiler ( ) is allowed to operate and the auxiliary boiler is deactivated. When an electrical signal is absent (contact open at Bi-E) and a request is present at the terminals of W1 or W2, the contact will close at the terminal of AUX, in order to operate the
boiler Auxiliary ( ) and not the electric boiler. Details of the variables in this mode are presented in Section 4.10.4 . 4.3.5.5 Manual Manual mode is used to manually select the operating mode of the system (Electrical or Auxiliary). Details of the variables in this mode are presented in Section 4.10.3
4.3.6 LIMIT SETTING Configuring the boiler operating limits Use this menu to adjust the permissible operating boiler limits for various parameters.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 44.
This menu’s configuration options are presented in detail in Section 4.11.
4.3.7 ALARM Alarm Mode Configuration When an alarm is active, it will be displayed on the main display as a symbol.
An alarm is active
The boiler is in lock mode
HL The high limit temperature has been reached
LL Low limit (Lack of capacity)
P Pressure problem alarm
A Electrical problem alarm
F Flow problem alarm
Se Sensor problem alarm
Ex: If P and Se are displayed at the same time, this indicates a pressure sensor problem A summary of active alarms is also available in the Boiler status menu.
An alarm report is available under the Alarm log menu. Information about date, time and alarm code is available in this menu. The internal clock must be adjusted beforehand so that the alarm registers correctly. Section 6 - Troubleshooting details alarm codes and settings specific to this menu. Details about this menu’s operation are available in Section 4.12
4.3.8 COMMUNICATION The boiler controller can be connected via an Ethernet network communication port or using a BACNet protocol. The boiler web portal can be accessed in a variety of ways. You will be able to modify the parameters remotely on a web portal and to visualize the anomalies.
Direct connection between the controller and a computer. 1. Connect the boiler controller to your local
network or directly to your computer in an internet port using an RJ45 network cable (located on the back of the controller). Refer to the wiring diagram, if you have any questions.
2. Open the Network and sharing center, then Change adapter setting on a windows operating system. Open the Local area connection properties, then Internet Protocole Version 4 (TCP/IPv4).
3. Replace the parameters by those show on the following figure.
4. Open a web browser and enter the IP
address (available in the Communication menu / Ethernet) of the controller in the web address bar.
5. Enter your username and password.
Default
Address IP 10.0.0.100
User Administrator
Password password
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 45.
Remote connection using a boiler-specific wireless network. If the boiler cannot be connected to the local network, a wireless router for remote connection can be installed. The configuration may differ depending on the model of the router being used. The methodology is presented with a TP-LINK model TL-WR810N. 1. Plug the router into an electrical outlet. 2. Connect the network cable to the RJ45
socket on the controller and the LAN / WAN jack on the router.
3. Use a computer to connect to the wireless network generated by TL-WR810N. (by default).
4. Open a web browser and your wireless network’s web configuration page at http://tplinkwifi.net, or use the router’s default address.
Default
IP address 192.168.0.1
User Admin
Password Admin
Remote connection using a network connection 1. Enter a compatible IP address and subnet
mask compatible with the network you want to connect to. Note: Select a free IP address that is compatible with the network (pay attention to the IP addresses of printers and other modules.)
2. Restart the controller to apply the changes. 3. Plug the network cable into the controller
and into an Ethernet port (wall outlet or directly into the router)
4. Open a web browser and enter the previously selected IP address.
4.3.8.1 BACnet The BACnet menu allows you to view the configuration and change the BACnet parameters. In order to configure the VOLTMAX boiler to your BACnet management system, you must activate the function. You must then enter the correct baud rate. Ex: For a BACnet MS / TP communication protocol with a Metasys system the default baud rate is 38400. You must enter the correct MS / TP address. Ex : For a BACnet MS / TP
communication with a Metasys system, the address is 5. For more information on the BACnet protocol, please refer to the appropriate documentation.
4.3.9 OCCUPATION Setting the temperature-lowering period.
4.3.9.1 Occupation setting This function allows the boiler water temperature to be lowered for defined periods without having to lower all the thermostats of the building. This function can be activated and deactivated within the menu Occupation under Occupation mode. This function allows the set-point temperature to be lowered when the boiler is within the hours specified in the Schedule Setting menu. The temperature drop in the set-point can be changed in the Occupation Setting menu. The SCR model allows the connection of a contact (OCC Contact) on the controller allowing the use of an external timer to control the OCCUPATION function. The Contact OCC. option activates the operating mode using an external contact (switch). Ex: When the contact (switch) is open at the OCC terminal, then the boiler will be in temperature-lowering mode. (Night mode) When the contact (switch) is closed, it will be in normal occupancy mode (Day mode). Force is used to force the boiler to operate normally (day mode). A weekly schedule can be programmed under the Schedule setting to modify the occupation hours of the building. 4.3.9.2 SCHEDULE CONFIGURATION Changing a Schedule Use this menu to configure the building’s occupation schedule. The schedule works on a weekly schedule (Monday - Sunday). The first hour represents the start of the occupancy
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 46.
period and the second hour represents the innocupancy periods.
Ex: In the case currently displayed between 07:00 and 17:59, the set-point temperature will not be affected. On the other hand, from 18:00 to 06:59, the set temperature will be lowered. When the building is not occupied for a full day, you must enter this information as follows, so that the boiler is not switched on.
4.3.10 BOOST MODE Enable Boost Mode
This mode operates with the Fixed Set-point and Outdoor reset mode. This menu allows the Boost mode to be activated, this mode increase the set-point temperature when the heating load of the building exceeds the capacity generated by the current water temperature determined by the boiler. This mode is activated after a period of 30 min if the set-point temperature is not reached. After this period, the set temperature will start to rise until a predetermined maximum temperature is reached depending on the heating mode until the demand is filled. This temperature increase is temporary and has a maximum duration of 120 minutes or when the request is terminated on W1 and W2. N.B. The BOOST mode is particularly interesting for applications such as:
o Applications with a programmable thermostat with automatic lowering of the building temperature.
o Return to normal heat demand after a prolonged period of sunshine where there have been no long-term demands and, therefore, heating floors will take a long time to provide heat at d Normal water.
4.3.11 WARM WEATHER SHUTDOWN
Shuts down the boiler when the outside temperature reaches an established threshold.
This mode stops the boiler’s heating production when the outside temperature is higher than a pre-determined temperature (ex: 68°F). Note: If the boiler is configured with DHW mode, it will continue to operate normally in order to meet the DHW heating demand.
4.3.12 CHANGE PASSWORD Changing the password This menu allows you to change the installer account password
4.4 INTERNET The settings available on the controller are also available remotely on a web portal. This portal works only when the boiler is properly connected to an internet or Ethernet network. The various setting parameters and the protocol for connecting the boiler to a network are available in the Communication menu and Section 4.3.8.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 47.
4.4.1 WEBSITE In order to access the boiler remotely via the internet, the boiler controller must be correctly connected. The web portal has 3 main menus, the User, Installer and Manufacturer menu. The structure of the web portal is the same as the controller; please refer to the previous sections, if you have any questions.
Ex: The user can obtain information concerning the boiler status, in the menu Operations / N.B. The password to acces the installater section of the website is 1111. He is independent of the boiler password.
4.4.2 EMAIL In order to configure the alarm by e-mail, you must: 1. You must first ensure that you enter the
correct information in the controller (depending on your network) under the following options:
a. IP address b. Default Gateway c. Subnet mask d. Primary DNS e. Secondary DNS
You must restart the device for the changes to take place. 2. Access the Boiler Web Portal. 3. Click on the Installer / Communication
menu.
4. Enter your e-mail under Recipient. You can also use your own mail server by entering the necessary data.
5. Then select the types of alarms you want to receive by e-mail.
If you want to send alarms to different e-mail addresses, simply enter a list of e-mails. Personal Email Server (Type: Gmail) The M171 controller does not support SSL encryption. Thus, your SMTP Email server must accept an unencrypted connection. Internet service providers usually have a specific server that accepts connections without encryptions. On-line messaging services, such as Hotmail, G-mail, do not accept unencrypted communications. In order to work around the
problem, there are relay services such as SMTP2GO: https://www.smtp2go.com, to relay between controller communication and your messaging system. This service is free for up to 1000 emails per month.
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 4
8.
4.5
B
OIL
ER
ST
AT
US
DIS
PL
AY
SE
TT
ING
S
D
isp
lay
D
esc
rip
tio
n
BA
Cn
et
Va
riab
le
BA
Cn
et
De
scri
pti
on
T. S
et po
int
The
set-
poin
t te
mpera
ture
of
the
boile
r.
The
boile
r w
ill
activate
its
ele
ments
accord
ingly
in
ord
er
to
modu
late
its
wate
r o
utlet te
mpera
ture
.
AV
_T
Set-
poin
t --
-
T.
Out B
oile
r T
he t
em
pera
ture
at
the o
utlet of
the V
OLT
MA
X b
oile
r.
AV
_B
oile
rTO
ut
---
T.
In B
oile
r T
he t
em
pera
ture
at
the inle
t of
the V
OLT
MA
X b
oile
r.
Th
is s
en
so
r is
on
ly a
vail
ab
le o
n S
CR
mo
dels
. A
V_
Bo
ilerT
In
---
T.
Outd
oor
This
variab
le a
llow
s t
he o
utd
oor
tem
pera
ture
to b
e d
ispla
ye
d
in r
eal tim
e w
hen t
he o
utd
oor
tem
pera
ture
sensor
is c
orr
ectly
connecte
d.
AV
_O
utd
oorT
--
-
Boile
r P
ressure
T
his
vari
able
allo
ws t
he
rea
din
g o
f th
e p
ressure
se
nso
r in
sid
e
the b
oile
r.
AV
_S
ensorP
ressure
Sig
na
l --
-
Actu
al po
wer
The a
ctu
al po
wer
used in k
ilow
att
A
V_A
ctu
alP
ow
er
---
%
max
auth
ori
zed
po
wer
The
maxim
um
perm
issib
le
po
wer
as
a
perc
enta
ge
of
the
nom
inal p
ow
er.
A
V_
Cap
Lim
itP
rc
---
Consum
ption
T
he p
ow
er
consum
ption
of
the last
cycle
. Y
ou
m
ust
firs
t begin
a
his
tory
cycle
(M
AIN
M
EN
U
/ C
ON
SU
MP
TIO
N)
---
---
Actu
al
Curr
ent
(A)
This
variab
le a
llow
s t
he r
eadin
g o
f th
e c
urr
ent
senso
r in
sid
e
the b
oile
r.
Th
is s
en
so
r is
on
ly a
vail
ab
le o
n S
CR
mo
dels
. A
V_
Sig
CaptC
oura
nt
---
Dem
and W
1
When re
questin
g heatin
g on W
1,
allo
win
g th
e op
era
tio
n of
the h
eating
ele
ments
. B
V_
Hea
tin
gW
1
0 =
No W
1 d
em
an
d
1 =
W1 d
em
and
Dem
and
W2/D
HW
W
hen
requestin
g
heatin
g
on
W2
or
DH
W,
allo
win
g
the
opera
tio
n o
f th
e h
ea
tin
g e
lem
ents
. B
V_
Hea
tin
gW
2
0 =
No W
2 d
em
and
1 =
W2 d
em
and
Pum
p W
1
Durin
g a
clo
sed c
onta
ct
of
the t
erm
inal blo
ck o
f th
e p
um
p 1
B
V_
Con
tactP
um
p1
0 =
Pum
p 1
op
en c
onta
ct
1 =
Pum
p 1
clo
se
d c
onta
ct
Pum
p W
2/D
HW
D
urin
g a
clo
sed c
onta
ct
of
the t
erm
inal blo
ck o
f th
e p
um
p 2
B
V_
Con
tactP
um
p2
0 =
Pum
p 2
op
en c
onta
ct
1 =
Pum
p 2
clo
se
d c
onta
ct
Flo
w
The t
heore
tica
l flo
w c
alc
ula
ted
accord
ing t
o t
he
po
we
r used,
T.
Out B
oile
r a
nd T
. In
Boile
rT.
Av
ail
ab
le o
n S
CR
mo
de
ls o
nly
. A
V_W
ate
rFlo
w
---
SC
R M
od
ula
tio
n
%
Perc
enta
ges o
f th
e S
CR
rela
y u
tilis
atio
n.
(F
or
SC
R m
odel only
) A
V_
Mo
dS
CR
Sta
ge #
1
Opera
tion o
f sta
ge #
1 (
For
ST
G m
odel on
ly)
BV
_R
elS
tage
1
0 =
Sta
ge 1
no
t w
ork
ing
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 4
9.
1 =
Opera
tion o
f sta
ge 1
Sta
ge #
2
Opera
tion o
f sta
ge #
2
BV
_R
elS
tage
2
0 =
Sta
ge 2
no
t w
ork
ing
1 =
Opera
tion o
f sta
ge 2
Sta
ge #
3
Opera
tion o
f sta
ge #
3
BV
_R
elS
tage
3
0 =
Sta
ge 3
no
t w
ork
ing
1 =
Opera
tion o
f sta
ge 3
Sta
ge #
4
Opera
tion o
f sta
ge #
4
BV
_R
elS
tage
4
0 =
Sta
ge 4
no
t w
ork
ing
1 =
Opera
tion o
f sta
ge 4
Sta
ge #
5
Opera
tion o
f sta
ge #
5
BV
_R
elS
tage
5
0 =
Sta
ge 5
no
t w
ork
ing
1 =
Opera
tion o
f sta
ge 5
Sta
ge #
6
Opera
tion o
f sta
ge #
6
BV
_R
elS
tage
6
0 =
Sta
ge 6
no
t w
ork
ing
1 =
Opera
tion o
f sta
ge 6
Ala
rm
HL/L
WC
O
Ala
rm
Ala
rm t
riggere
d b
ecause o
f a h
igh lim
it a
nd lo
w w
ate
r le
ve
l m
anual ala
rm.
BV
_S
tatu
sAla
rmH
L/LW
0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctivate
d
HL A
larm
A
larm
triggere
d w
hen t
he b
oile
r’s inte
rnal te
mpera
ture
is
hig
her
than t
he t
hre
sho
ld.
BV
_A
larm
IntH
L 0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctivate
d
LL A
larm
A
larm
triggere
d b
y t
he b
oile
r’s lack o
f capacity.
BV
_A
larm
LL
0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctivate
d
Lo
w
Pre
ssure
A
larm
A
larm
triggere
d b
y a
lo
w p
ressure
. B
V_
Ala
rmLo
wP
ress
ure
0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctiva
ted
Hig
h
Pre
ssure
A
larm
A
larm
triggere
d b
y a
hig
h p
ressure
. B
V_
Ala
rmH
igh
Pre
ssu
re
0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctivate
d
Flo
w A
larm
A
larm
triggere
d b
y a
flo
w p
roble
m.
BV
_A
larm
Low
Flo
w
0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctivate
d
Curr
ent
Ala
rm
Ala
rm t
riggere
d b
y a
curr
en
t pro
ble
m.
BV
_A
larm
Cu
rre
nt
0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctivate
d
Sensor
Ala
rm
Ala
rm t
riggere
d b
y a
senso
r pro
ble
m.
BV
_A
larm
Sen
sor
0 =
Norm
al opera
tio
n
1 =
Ala
rm a
ctivate
d
Boile
r m
odel
The V
OLT
MA
X b
oile
r m
odel.
---
---
Tensio
n
The n
om
inal voltag
e o
f th
e V
OLT
MA
X b
oile
r.
---
---
Firm
ware
vers
ion
T
he c
ontr
olle
r’s f
irm
ware
vers
ion.
---
---
Pro
gra
m n
am
e
The c
ontr
olle
r’s p
rogra
m n
am
e a
nd v
ers
ion.
---
---
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
0.
4.6
H
EA
TIN
G M
OD
E W
1 S
ET
TIN
GS
Dis
pla
y
BA
Cn
et
vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
Opera
ting M
od
e
WP
_H
eatingM
od
eW
1
Sele
cts
the p
ow
er
limitation
mode
betw
een S
top
, M
odu
latio
n T
. E
xt,
DC
C 0
-10V
DC
an
d F
ixed
.
0 =
Sto
p
1 =
Outd
oor
Reset
2 =
DC
C 0
-10V
DC
3 =
Fix
ed
Fix
ed
4.6
.1
FIX
ED
MO
DE
C
onfigure
the
fix
ed s
et-
po
int
tem
pera
ture
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
W1 S
et po
int
WP
_F
ixedS
TP
TW
1
Sele
cts
the f
ixed
set-
po
int
tem
pera
ture
whe
n th
ere
is
dem
and o
n W
1.
10 to
93 0
C
50 to
20
0 0
F
140 0
F
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
1.
4.6
.2
OU
TD
OO
R R
ES
ET
MO
DE
A
dju
st
the s
et-
po
int
tem
pera
ture
acco
rdin
g t
o t
he o
uts
ide t
em
pera
ture
This
mode a
llow
s m
odula
ting t
he b
oile
r outp
ut
set-
po
int
tem
pera
ture
as a
fu
nction
of
the
ou
tdo
or
tem
pera
ture
. T
he
outd
oor
tem
pera
ture
valu
e
com
es f
rom
a tem
pera
ture
sensor
connecte
d t
o th
e b
oile
r co
ntr
olle
r.
If t
he o
utd
oor
sensor
is n
ot
connecte
d o
r if i
ts c
ircu
it i
s o
pe
n,
an a
larm
sig
na
l w
ill b
e d
ispla
yed o
n t
he d
ispla
y (
SE
). T
he b
oile
r te
mpera
ture
set-
poin
t w
ill b
ecom
e the s
et
valu
e a
t S
TP
T M
in T
. O
utd
oo
r.
F
igu
re 1
8 :
Ou
tdo
or
reset
cu
rve
T
ab
le 1
0 :
OU
TD
OO
R R
ES
ET
MO
DE
Sett
ing
s
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
Calc
ula
ted S
PT
P
AV
_T
Boile
rST
PT
Calc
ula
tedO
UT
RS
T
Curr
ent
set-
poin
t te
mpera
ture
calc
ula
ted b
ase
d o
n th
e
adju
stm
ent
curv
e a
nd th
e o
uts
ide
tem
pera
ture
10 t
o 9
3 0
C
50 to
20
0 0
F
---
ST
PT
at M
in O
utd
T
WP
_S
TP
TatM
inO
utd
T
Boile
r set-
poin
t te
mpera
ture
w
hen th
e outs
ide te
mpera
ture
re
aches the
Min
Ou
td T
.
10 t
o 9
3 0
C
50 t
o 2
00 0
F
140 0
F
ST
PT
at M
ax O
utd
T
WP
_S
TP
TatM
axO
utd
T
Boile
r set-
poin
t te
mpera
ture
whe
n th
e o
uts
ide tem
pera
ture
re
aches t
he
Max O
utd
T.
10 t
o 9
3 0
C
50 t
o 2
00 0
F
80 0
F
Outd
oor
T.
A
V_
Outd
oorT
D
ispla
ys
the
outs
ide
tem
pera
ture
in
re
al
tim
e
wh
en
the
outd
oor
tem
pera
ture
se
nso
r is
pro
perl
y c
onn
ecte
d.
-46 t
o 1
07 °
C
-50 t
o 2
50 °
F
---
Min
Outd
T.
W
P_
Min
Outd
Rs
tT
Min
imum
outs
ide
tem
pera
ture
(S
et
to
the
are
a’s
cold
est
avera
ge t
em
pera
ture
) -4
6 t
o 1
07 °
C
-50 t
o 2
50 °
F
-10 0
F
Max O
utd
T.
W
P_
MaxO
utd
RstT
M
axim
um
outs
ide t
em
pera
ture
at
whic
h t
he b
uild
ing w
ill n
eed
heating
-4
6 t
o 1
07 °
C
-50 t
o 2
50 °
F
65 0
F
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
2.
4.6
.3
MO
DE
: D
DC
0-1
0V
DC
M
od
ula
tio
n o
f th
e s
et-
po
int
tem
pera
ture
as a
fu
ncti
on
of
0-1
0 V
DC
(A
vail
ab
le o
nly
on
SC
R m
od
el)
This
opera
ting m
ode a
llow
s t
o m
odula
te th
e s
et-
po
int
tem
pera
ture
of
the w
ate
r outlet
of
the
bo
iler
accord
ing
to
a 0
-10
VD
C s
igna
l a
pp
lied
to t
he t
er m
inal
blo
ck 0
-10V
dc T
and 0
-10
Vd
c G
fro
m a
n e
xte
rnal
contr
olle
r (E
x:
An e
nerg
y m
anag
em
ent
soft
ware
).
A he
at
dem
and (c
losed conta
ct
W1 and /
or
W2
-DH
W)
must
be
pre
sent
so t
hat
the b
oile
r can h
eat
up.
F
igu
re 1
9 :
Mo
de D
DC
0-1
0 V
DC
Tab
le 1
1 :
Sp
ecif
ic p
ara
mete
rs i
n D
DC
0-1
0 V
DC
D
isp
lay
B
AC
net
vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
T.
ST
PT
0-1
0V
DC
A
V_
TB
oile
rST
PT
Calc
ula
tedV
T
his
varia
ble
repre
se
nts
th
e s
et-
po
int te
mpera
ture
based o
n t
he v
oltag
e o
f th
e b
uild
ing
contr
ol syste
m.
0C
or
0F
--
-
ST
PT
at M
in V
olt
WP
_S
TP
TatM
inR
em
ote
01
0V
S
et-
poin
t of
the b
oile
r te
mpera
ture
corr
espo
nd
ing t
o
the v
oltag
e level of
Min
Vo
ltag
e.
0C
or
0F
80 0
F
ST
PT
at M
ax V
olt
WP
_S
TP
TatM
axR
em
ote
01
0V
S
et-
poin
t of
the b
oile
r te
mpera
ture
corr
espo
nd
ing
to
the v
oltag
e level of
Max V
olt
ag
e.
0C
or
0F
140 0
F
Actu
al voltag
e
AV
_R
em
ote
010
VS
TP
T
Voltag
e e
mitte
d b
y t
he e
xte
rnal con
trolle
r in
re
al
tim
e
0-1
0 V
--
-
Max V
oltage
W
P_
Min
Rem
ote
VS
TP
T
The m
axim
um
voltag
e th
at
the exte
rnal
co
ntr
olle
r can s
end
0-1
0 V
10
Min
Vo
lta
ge
W
P_
MaxR
em
ote
VS
TP
T
The
min
imum
voltage
tha
t th
e
exte
rna
l contr
olle
r can s
end
0-1
0 V
0
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
3.
4.7
W
2 M
OD
E S
ET
-PO
INT
TE
MP
ER
AT
UR
E S
ET
TIN
GS
D
isp
lay
B
AC
net
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
Opera
ting M
od
e
WP
_H
eatingM
od
eW
2
Sele
ct
the b
oile
r’s o
pera
tin
g m
ode
durin
g d
em
and o
n W
2 (
None, W
2
and D
HW
)
0 =
W2
1 =
DH
W
2 =
Non
e
None
4.7
.1
W2
MO
DE
C
onfigure
s t
he f
ixed s
et-
po
int te
mpera
ture
durin
g d
em
and o
n W
2
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
W2 S
et po
int
WP
_F
ixedS
TP
TW
2
Sele
cts
the f
ixed
set-
po
int
tem
pera
ture
duri
ng d
em
and o
n W
2.
10 to
93 0
C
50 to
20
0 0
F
175 d
eg F
0
4.7
.2
DH
W M
OD
E
Configure
s t
he f
ixed s
et-
po
int te
mpera
ture
durin
g d
em
and o
n D
HW
mode.
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
T. S
et-
poin
t D
HW
W
P_
Fix
edS
TP
TW
2
Sele
cts
the f
ixed
set-
po
int
tem
pera
ture
duri
ng d
em
and o
n W
2
term
inale
10 to
93 0
C
50 to
20
0 0
F
175 0
F
T.
Min
Boile
r W
P_
Fix
edS
TP
TW
0
Sele
cts
the b
oile
r’s m
inim
um
tem
pera
ture
.
The b
oile
r’s h
eating
ele
ments
will
activate
auto
matically
to k
eep th
e
hydro
nic
syste
m a
t th
e s
ele
cte
d t
em
pera
ture
.
10 to
93 0
C
50 to
20
0 0
F
150 0
F
4.8
P
UM
P C
ON
FIG
UR
AT
ION
ME
NU
SE
TT
ING
S
4.8
.1
PU
MP
1
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
Pum
p
configura
tion
W
P_
Pum
p1M
ode
S
ele
cts
the p
um
p c
onfigura
tion
mode (
pum
p c
onta
ct
sw
itch)
0 =
Non
e
1 =
Alw
ays A
ctive
2 =
On d
em
and W
1
Alw
ays
active
Purg
e d
ela
y
WP
_P
um
p1D
ela
y
Configure
s t
he p
um
p p
urg
e d
ela
y (
used in W
1 O
n-D
em
and
mode)
0 to 6
00 s
ec
30 s
ec
4.8
.2
PU
MP
2
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
Pum
p
Configura
tio
n
WP
_P
um
p2M
ode
S
ele
cts
the p
um
p c
onfigura
tion
mode
(pum
p c
onta
ct
sw
itch)
0 =
Non
e
1 =
Alw
ays A
ctive
2 =
On d
em
and W
1
3 =
Pri
ority
on
P1
Alw
ays
Active
Purg
e d
ela
y
WP
_P
um
p2D
ela
y
Configure
s t
he p
um
p p
urg
e d
ela
y (
used in W
1 O
n-D
em
and
mode)
0 to 6
00 s
ec
30 s
ec
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
4.
SP
EC
IFIC
PA
RA
ME
TE
RS
FO
R T
HE
CA
PA
CIT
Y L
IMIT
ING
ME
NU
T
he b
oile
r au
thori
zes a
maxim
al po
wer
use. T
he c
onfig
ura
tion o
f th
ese m
odes is s
ho
wn b
elo
w.
4.8
.3
MA
NU
AL
MO
DE
T
he m
axim
um
pow
er
is d
ete
rmin
ed m
anually
Dis
pla
y
BA
Cn
et
vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
Max c
apacity
(kW
)
Configure
the
maxim
um
ele
ctr
ical po
wer
the b
oile
r w
ill u
se.
0 to m
axim
um
ra
ted p
ow
er
---
4.8
.4
MO
DE
: 0-1
0 V
DC
(O
nly
avail
ab
le o
n S
CR
mo
del)
T
he m
odula
tion
of
the m
axim
um
pow
er
is c
arr
ied o
ut
usin
g a
n e
xte
rnal contr
ol 0
-10 V
DC
.
Dis
pla
y
BA
Cn
et
vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
Max c
apacity
(kW
)
The c
alc
ula
ted p
ow
er
va
lue
as a
functio
n o
f th
e c
urr
ent
and t
he n
om
inal
opera
tin
g v
oltage
of
the b
oile
r 0 to m
axim
um
ra
ted p
ow
er
---
kW
at M
in V
olt
T
he m
axim
um
perm
issib
le p
ow
er
of
the b
oile
r w
hen t
he v
oltage o
f th
e
exte
rnal contr
olle
r is
at
Min
Vo
ltag
e
0 to m
axim
um
ra
ted p
ow
er
0
kW
at M
ax V
olt
T
he m
axim
um
perm
issib
le p
ow
er
of
the b
oile
r w
he
n t
he
voltag
e o
f th
e
exte
rnal contr
olle
r is
at
Min
Vo
ltag
e
0 to m
axim
um
ra
ted p
ow
er
---
0-1
0V
Curr
ent
Sig
na
l
Voltag
e e
mitte
d b
y t
he e
xte
rnal con
trolle
r in
re
al tim
e
0-1
0 V
--
-
Max V
oltage
The
vo
ltag
e
repre
sentin
g
the
m
axim
um
set-
poin
t of
the
exte
rnal
contr
olle
r 0-1
0 V
10
Min
Vo
lta
ge
The v
oltage
repre
se
nting t
he m
inim
um
set-
poin
t of
the e
xte
rnal contr
olle
r 0-1
0 V
0
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
5.
4.9
P
OW
ER
LIM
ITA
TIO
N M
EN
U S
ET
TIN
GS
Y
ou c
an c
ontr
ol th
e b
oile
r p
ow
er
with d
iffe
rent
modes. T
heir c
onfigura
tion is b
elo
w.
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
Lim
itatio
n M
ode
W
P_
CapLim
itM
ode
S
ele
ct
the p
ow
er
limitatio
n b
etw
een
N
one,
Ma
nua
l, D
CC
0-1
0V
DC
,T.
Ext
and
Sche
du
led
.
0 =
Non
e
1 =
Man
ua
l 2 =
DC
C 0
-10V
DC
3 =
T.
Ext
4 =
Sche
dule
d
---
4.9
.1
MA
NU
AL
MO
DE
T
he m
axim
um
pow
er
is s
et
manually
.
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
Curr
ent
auth
ori
zed m
ax
kW
WP
_M
anualC
apL
imit
Configure
s
the
maxim
um
ele
ctr
ical
po
wer
that
the
boile
r w
ill u
se
. 0 to m
axim
um
rate
d p
ow
er
--
-
4.9
.2
0-1
0 V
DC
MO
DE
(A
vail
ab
le o
n S
CR
mo
dels
on
ly)
An e
xte
rna
l 0-1
0 V
DC
contr
olle
r is
use
d to
adju
st
the m
axim
um
pow
er.
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
Curr
ent
auth
ori
zed m
ax
kW
AV
_A
ctu
alC
apL
im
itkW
The v
alu
e o
f p
ow
er
calc
ula
ted b
ased o
n t
he c
urr
ent
an
d the
bo
iler’s
nom
inal o
pera
tin
g v
oltage
0 to m
axim
um
ra
ted p
ow
er
(kW
) --
-
Min
imum
Pow
er
Volt (
kW
) W
P_
Min
Rem
ote
VC
ap
Lim
it
The b
oile
r’s m
axim
um
pow
er
when
the
exte
rnal co
ntr
olle
r vo
lta
ge is a
t M
in V
olt
ag
e
0 to m
axim
um
ra
ted p
ow
er
0
Maxim
um
Pow
er
Volt (
kW
) W
P_
MaxR
em
ote
VC
ap
Lim
it
The b
oile
r’s m
axim
um
pow
er
when t
he e
xte
rna
l contr
olle
r voltage is a
t V
fo
r m
ax.
cap
. 0 to m
axim
um
ra
ted p
ow
er
---
Curr
ent
Sig
na
l 0-
10V
A
V_
Rem
ote
010
VC
ap
V
oltag
e e
mitte
d b
y t
he e
xte
rnal con
trolle
r in
re
al tim
e
0-1
0 V
--
-
Min
Vo
lta
ge
(VD
C)
WP
_C
apLim
itatM
inR
em
ote
01
0V
T
he v
oltage
repre
se
nting t
he e
xte
rna
l co
ntr
olle
r’s m
inim
um
set-
poin
t
0-1
0 V
0
Max V
oltage
(VD
C)
WP
_C
apLim
itatM
axR
em
ote
010V
T
he v
oltage
repre
se
nting t
he e
xte
rna
l co
ntr
olle
r’s m
axim
um
set-
poin
t
0-1
0 V
10
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
6.
4.9
.3
T.
EX
T M
OD
E
Maxim
um
pow
er
modula
tio
n
is
base
d
on
th
e
ou
tsid
e
tem
pera
ture
. P
ow
er
modula
tio
n is s
ho
wn
belo
w.
If t
he e
xte
rna
l sensor
is n
ot
conn
ecte
d o
r th
ere
is a
pro
ble
m w
ith
th
e s
ensor,
the
n t
he p
ow
er
will
be lim
ited a
ccord
ing t
o C
ap
. A
t T
. E
xt.
Min
.
F
igure
20
: A
dju
stm
ent
curv
e a
ccord
ing t
o th
e T
. ext
mode
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
Max c
apacity
(kW
) A
V_A
ctu
alC
apL
im
itkW
T
he v
alu
e o
f p
ow
er
calc
ula
ted b
ased o
n t
he c
urr
ent
an
d the
bo
iler’s
nom
inal o
pera
tin
g v
oltage
0 to m
axim
um
rate
d
po
wer
---
Cap.
At
T.
Ext.
M
in
WP
_C
apLim
itatM
inO
utd
T
Maxim
um
auth
ori
zed
capacity a
ccord
ing t
o T
. E
xt.
Min
E
x.
Maxim
um
pow
er
is 1
70
kW
for
T.
Ext m
in
0 to m
axim
um
rate
d
po
wer
---
Cap.
At
T.
Ext.
M
ax
WP
_C
apLim
itatM
axO
utd
T
Maxim
um
auth
ori
zed
capacity a
ccord
ing t
o T
. E
xt.
Max
Ex.
Maxim
um
pow
er
is 1
20
kW
for
T.
Ext m
in
0 to m
axim
um
rate
d
po
wer
---
Actu
al T
. E
xte
rior
AV
_O
utd
oorT
T
his
variab
le a
llow
s y
ou t
o v
iew
th
e o
uts
ide t
em
pera
ture
in r
eal
tim
e
when t
he o
uts
ide t
em
pera
ture
sensor
is p
roperl
y c
onn
ecte
d.
-46 to 1
07 °
C
-50 to 2
50 °
F
---
T.
Ext.
Min
W
P_
Min
Outd
TC
apLim
it
Min
imal outs
ide t
em
pera
ture
used t
o a
dju
st
the
maxim
um
pow
er
-4
6 to 1
07 °
C
-50 to 2
50 °
F
-10 F
T.
Ext.
Max
WP
_M
axO
utd
TC
apL
imit
Maxim
um
outs
ide t
em
pera
ture
used t
o a
dju
st
the m
axim
um
pow
er
-46 to 1
07 °
C
-50 to 2
50 °
F
65 F
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
7.
4.9
.4
SC
HE
DU
LE
MO
DE
P
ow
er
ca
n b
e m
odula
ted a
ccord
ing t
o a
fix
ed
schedu
le.
This
can b
e p
rogra
mm
ed in t
he S
ch
ed
ule
Sett
ing
menu.
Dis
pla
y
BA
Cn
et
vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
Max c
apacity
(kW
) A
V_A
ctu
alC
apL
im
itkW
M
axim
um
capacity a
llow
ed a
t pre
sen
t tim
e.
0 to m
axim
um
rate
d
po
wer
---
Cap I
n S
ch
edu
le
WP
_C
apLim
itD
ay
Mode
P
ow
er
limitation
whe
n th
e b
oile
r in
tern
al clo
ck is w
ithin
the p
ow
er
limitatio
n s
ched
ule
. 0 to m
axim
um
rate
d
po
wer
---
Cap O
ut
Sched
ule
W
P_
CapLim
itN
ightM
ode
P
ow
er
limitation w
he
n th
e b
oile
r in
tern
al clo
ck is o
uts
ide the
po
wer
limitatio
n s
ched
ule
. 0 to m
axim
um
rate
d
po
wer
---
Sched
ule
--
- C
onfiguri
ng t
he b
oile
r po
we
r lim
itatio
n s
ched
ule
. In
ord
er
to o
pera
te
corr
ectly,
yo
u m
ust
firs
t adju
st
the inte
rna
l b
oile
r clo
ck in t
he C
lock
Sett
ing
menu.
---
---
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
8.
4.1
0 A
UX
ILIA
RY
BO
ILE
R S
ET
TIN
GS
(O
nly
avail
ab
le o
n S
CR
mo
del)
T
he s
yste
m a
llow
s c
ontr
ol of
an a
uxili
ary
bo
iler
to t
he s
yste
m. T
he d
iffe
rent
configura
tion o
ptions a
re s
ho
wn
belo
w.
In o
rder
for
the b
oile
r to
sta
rt,
two c
on
ditio
ns m
ust
be m
et:
The w
ate
r ou
tle
t te
mpera
ture
of
the V
oltm
ax b
oile
r m
ust
be b
elo
w t
he
sta
rt-u
p
tem
pera
ture
Aux.
(T.
Ou
t B
oil
er
< (
T S
et-
po
int
- D
elt
a T
. A
ux S
tart
) T
he w
ate
r ou
tle
t te
mpera
ture
of
the V
oltm
ax b
oile
r m
ust
be b
elo
w t
he
sta
rt-u
p
tem
pera
ture
Aux.
for
a p
eriod o
f X
min
ute
s (
Sta
rt D
ela
y A
ux
), a
fter
the V
oltm
ax
boile
r is
at 1
00%
of
its a
uth
ori
zed p
ow
er.
In
ord
er
for
the a
uxili
ary
boile
r to
turn
off
, th
e w
ate
r outlet
tem
pera
ture
of
the
Voltm
ax b
oile
r m
ust
be a
bo
ve t
he A
ux.
T O
ut
Bo
iler
> (
T. S
et-
po
int
- D
elt
a T
. A
ux S
top
)
4.1
0.1
B
AC
KU
P M
OD
E
Configure
s a
second
bo
iler
as a
backup
.
Dis
pla
y
BA
Cn
et
vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
ST
PT
Sourc
e
WP
_S
TP
TS
ourc
eA
ux
Sele
cts
the s
ourc
e u
sed
to c
ontr
ol th
e s
et-
poin
t te
mpera
ture
.
Au
xil
iary
m
eans t
hat
the set-
poin
t w
ill be dete
rmin
ed
b
y th
e auxili
ary
boile
r. T
he V
OLT
MA
X b
oile
r th
ere
fore
has n
o s
et-
po
int
tem
pera
ture
an
d
is o
nly
used t
o a
ctivate
the a
uxili
ary
boile
r re
lay.
Vo
ltm
ax
means t
hat
the s
et-
poin
t te
mpera
ture
will
be
dete
rmin
ed b
y t
he
V
OLT
MA
X b
oile
r.
Auxili
ary
or
VO
LT
MA
X
0 =
Auxill
iary
1 =
VO
LT
MA
X
VO
LT
MA
X
Delta T
. S
tart
A
ux.
W
P_
DeltaT
Sta
rtA
ux
This
option a
dju
sts
the t
em
pera
ture
diffe
rentia
l (s
et-
poin
t te
mpera
ture
–
Wate
r outlet
tem
pera
ture
) u
sed t
o a
ctivate
the
auxili
ary
boile
r.
0 to 5
5 0
C
0 to 1
00 0
F
20 0
F
Delta T
. S
top
A
ux.
WP
_D
eltaT
Sto
pA
ux
This
option c
onfig
ure
s t
he t
em
pera
ture
diffe
rential
(set-
poin
t te
mpera
ture
– W
ate
r outlet
tem
pera
ture
) in
th
e V
OLT
MA
X b
oile
r used t
o d
eactiva
te
the a
uxili
ary
boile
r.
0 to 5
5 0
C
0 to 1
00 0
F
5 0
F
Dela
y S
tart
Aux.
W
P_
Dela
yS
tart
Aux
This
optio
n a
dju
sts
the d
ela
y i
n m
inute
s b
efo
re a
ctivatin
g t
he a
uxili
ary
boile
r.
Min
10
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 5
9.
4.1
0.2
E
XT
ER
NA
L C
ON
TA
CT
MO
DE
This
mode s
ele
cts
th
e h
ydro
nic
syste
m h
eatin
g s
ourc
e (
VO
LT
MA
X b
oile
r or
auxili
ary
boile
r) u
sin
g t
he B
I-E
te
rmin
al’s
ele
ctr
ical sw
itch
.
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sett
ing
s
Defa
ult
ST
PT
Sourc
e
WP
_S
TP
TS
ourc
eA
ux
Sele
cts
the s
ourc
e u
sed
to c
ontr
ol th
e s
et-
poin
t te
mpera
ture
.
Exte
rnal
means th
at
the
set-
poin
t w
ill be d
ete
rmin
ed b
y th
e auxili
ary
boile
r. T
he V
OLT
MA
X b
oile
r th
ere
fore
has n
o s
et-
po
int
tem
pera
ture
and is
used o
nly
to
activate
th
e a
uxili
ary
boile
r’s r
ela
y.
In
tern
al
means t
hat
the s
et-
poin
t te
mpera
ture
will
be d
ete
rmin
ed b
y t
he
V
OLT
MA
X b
oile
r.
Exte
rna
l or
inte
rnal
Inte
rna
l
4.1
0.3
M
AN
UA
L M
OD
E
Manu
al m
ode is u
sed t
o s
ele
ct
the s
yste
m’s
opera
ting m
ode
(E
lectr
ic o
r a
uxili
ary
).
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Sele
cti
on
D
efa
ult
Active B
oile
r W
P_A
ctiveB
oile
r
This
optio
n se
lects
w
hic
h boile
r is
in
o
pera
tio
n;
either
the V
OLT
MA
X
boile
r (e
lectr
ic)
or
the a
uxili
ary
boild
er
(auxili
ary
).
VO
LT
MA
X o
u
Auxili
ary
0 =
VO
LT
MA
X
1 =
Auxili
ary
VO
LT
MA
X
ST
PT
Sourc
e
WP
_S
TP
TS
ourc
eA
ux
Sele
cts
the s
ourc
e u
sed
to c
ontr
ol th
e s
et-
poin
t te
mpera
ture
. A
ux
ilia
ry m
eans t
hat
the set-
poin
t w
ill be dete
rmin
ed b
y th
e auxili
ary
boile
r. T
he V
OLT
MA
X b
oile
r th
ere
fore
has n
o s
et-
po
int
tem
pera
ture
an
d
is o
nly
used t
o a
ctivate
the a
uxili
ary
boile
r re
lay.
V
olt
max
means t
hat
the s
et-
poin
t te
mpera
ture
will
be
dete
rmin
ed b
y t
he
V
OLT
MA
X b
oile
r.
Auxili
ary
or
VO
LT
MA
X
0 =
Auxili
ary
1 =
VO
LT
MA
X
VO
LT
MA
X
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 6
0.
4.1
0.4
B
I-E
NE
RG
Y M
OD
E
This
mode s
ele
cts
the h
ydro
nic
syste
m h
eating s
ourc
e (
VO
LT
MA
X b
oile
r or
auxili
ary
bo
iler)
usin
g t
he B
I-E
te
rmin
al’s
ele
ctr
ica
l sw
itch
. T
he b
enefit
of
this
m
ode is t
hat th
e s
yste
m c
an o
pera
te t
he b
ack-u
p b
oile
r w
hen n
ee
ded
.
Dis
pla
y
BA
Cn
et
vari
ab
le
Desc
rip
tio
n
Para
mete
rs
Defa
ult
ST
PT
Sourc
e
WP
_S
TP
TS
ourc
eA
ux
Sele
cts
the s
ourc
e u
sed
to c
ontr
ol th
e s
et-
poin
t te
mpera
ture
.
Au
xil
iary
m
eans t
hat
the
set-
poin
t w
ill be dete
rmin
ed b
y th
e auxili
ary
boile
r. T
he V
OLT
MA
X b
oile
r has n
o s
et-
po
int
tem
pera
ture
and i
s o
nly
used t
o a
ctivate
th
e a
uxili
ary
boile
r re
lay.
Vo
ltm
ax
means t
hat
the s
et-
poin
t te
mpera
ture
will
be
dete
rmin
ed
by t
he
V
OLT
MA
X b
oile
r.
Auxili
ary
or
VO
LT
MA
X
0 =
Auxili
ary
1 =
VO
LT
MA
X
VO
LT
MA
X
Delta T
. S
tart
A
ux.
W
P_
DeltaT
Sta
rtA
ux
This
option a
dju
sts
the t
em
pera
ture
diffe
rential
(Se
t-poin
t te
mpera
ture
–
Wate
r outlet
tem
pera
ture
) u
sed t
o a
ctivate
the
auxili
ary
boile
r.
0 to 5
5 0
C
0 to 1
00 0
F
20 0
F
Delta T
. S
top
A
ux.
WP
_D
eltaT
Sto
pA
ux
This
option c
onfig
ure
s t
he t
em
pera
ture
diffe
rential (S
et-
poin
t te
mpera
ture
– W
ate
r outlet
tem
pera
ture
) in
th
e V
OLT
MA
X b
oile
r used t
o d
eactiva
te
the a
uxili
ary
boile
r.
0 to 5
5 0
C
0 to 1
00 0
F
5 0
F
Dela
y S
tart
Aux.
W
P_
Dela
yS
tart
Aux
This
optio
n a
dju
sts
the d
ela
y i
n m
inute
s b
efo
re a
ctivatin
g t
he a
uxili
ary
boile
r.
Min
10
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 6
1.
4.1
1 L
IMIT
CO
NF
IGU
RA
TIO
N M
EN
U S
ET
TIN
GS
D
isp
lay
B
AC
net
vari
ab
le
Desc
rip
tio
n
Sett
ing
s
Defa
ult
Haute
Lim
ite T
W
P_
Hig
hLim
itT
em
p
Adju
sts
the t
em
pera
ture
hig
h l
imit a
t w
hic
h t
he a
larm
tr
iggers
. If
th
e w
ate
r te
mpera
ture
le
avin
g th
e boile
r
exceeds th
e a
larm
’s hig
h lim
it,
it w
ill tr
igger
an
H
L
ala
rm
and
the
bo
iler’s
heating
e
lem
ents
w
ill
be
deactiva
ted.
0 to 9
2 °
C
0 to 1
99 °
F
180 °
F
Delta T
. LL
W
P_
DeltaT
LL
Adju
sts
th
e t
em
pera
ture
diffe
rential
to a
ctiva
te t
he
LL
a
lar
m.
0 to -
55 °
C
0 to -
99 °
F
-20 °
F
Dela
y L
L (
min
) W
P_
Dela
yLL
A
dju
sts
the L
L a
larm
trigger
dela
y .
0 to 1
80 m
in
60 m
in
Pre
ssure
sensor
WP
_A
ctivate
Pre
ssure
Se
nsor
Activate
s t
he b
oile
r’s inte
rnal pre
ssure
se
nsor
module
.
OF
F /
ON
0 =
Off
; 1
= O
n
ON
Actu
al pre
ssure
A
V_
Se
nsorP
ressure
Sig
na
l R
eads t
he b
oile
r’s inte
rna
l pre
ssure
sensor.
--
- --
-
Curr
ent
sensor
WP
_A
ctivate
Curr
entS
ensor
Activate
s t
he c
urr
ent senso
r m
odule
.
Th
is m
od
ule
is a
vailab
le o
n S
CR
mo
de
ls o
nly
O
FF
/ O
N
0 =
Off
; 1
= O
n
ON
Calc
ula
ted
curr
ent
AV
_C
alc
ula
tedC
urr
entS
ign
al
Used t
o v
iew
the V
OLT
MA
X b
oile
r’s t
heore
tical
ele
ctr
ic c
onsum
ption c
urr
en
t.
---
---
Actu
al curr
ent
AV
_S
ensorC
urr
entS
ign
al
Vie
w c
urr
ent
as m
easure
d b
y a
sensor.
--
- --
-
VO
LT
MA
X E
LE
CT
RIC
BO
ILE
R In
sta
llati
on
an
d O
pera
tio
n M
an
ual (R
evis
ed
Jun
e 2
017
), P
age 6
2.
4.1
2 C
ON
FIG
. A
LA
RM
ME
NU
SE
TT
ING
S
Dis
pla
y
BA
Cn
et
Vari
ab
le
Desc
rip
tio
n
Po
ssib
le S
ett
ing
s
Defa
ult
Sta
tus:
HL/L
WC
O a
larm
B
V_
Sta
tusE
xtA
larm
D
ispla
ys
the
exte
rnal
ala
rm
sta
tus.
The
exte
rnal
ala
rm c
onta
ct
is a
ctivate
d o
nly
if
a h
igh l
imit o
r lo
w
wate
r le
vel a
larm
occurs
.
0 =
Off
1 =
On
--
-
Sile
nce A
larm
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1 =
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Deactivate
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1 =
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4.1
3 O
CC
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AT
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unction
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--
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ay
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1 =
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; 1
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VO
LT
MA
X E
LE
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an
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017
), P
age 6
3.
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4 B
OO
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ME
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D
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unctionalit
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Off
1 =
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ff
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AR
M W
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ide t
em
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ture
re
aches a
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ecific
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5 °
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F
Curr
ent
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utd
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S
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ws t
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ide
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ture
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l tim
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-46 to 1
07 °
C
-50 to 2
50 °
F
---
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 64.
SECTION 5 : BOILER START UP
Before operating this boiler, be sure to read and follow these instructions, as well as the warnings printed in this manual. Failure to do so can result in unsafe operation of the boiler resulting in property damage, bodily injury, or death. Should you have any problems reading, following or difficulty in understanding the instructions in this manual, STOP, and get help from a qualified person. Do not turn on the boiler unless it is filled with water. Do not turn on the boiler if the cold-water supply shut-off valve is closed.
After the boiler, has been plumbed and wired, it is now ready to be set for automatic operation
5.1 FILLING THE BOILER Open the service valves at the outlet of the boiler and the cold-water supply valve (fill or makeup water valve) to boiler. Open the relief valve on top of the boiler in order to purge the air out of the boiler tank during the fill process
Leave all shutoff valves open. Check system for leaks and repair. Purge air from all the heating distribution zones. Bleed air from different areas of the heat distribution system. Check boiler pressure gage reading. The indicated pressure should be lower than the pressure relief valve design rating.
5.2 ADJUSTEMENT OF THE CONTROLLER OPERATING PARAMETERS After the system has been manually purged of air, and all components (valves, vents, controllers) have been set properly, the boiler can be started. Never operate this boiler until this has been done. Consider safety and energy-savings when adjusting the boiler’s water temperature. It is more energy-efficient to maintain a set-point as low as possible while still meeting heating needs. Safety and energy conservation are factors to be considered when setting the boiler water
operating temperature. The most energy-efficient operation will result when the temperature setting of the controller is the lowest that satisfies the heating needs. Make sure that the input of the operating parameters of the controller as well as the adjustable high mechanical limit control of the boiler corresponding to the values required for the application. Adjusting the high limit is possible in the Limit Setting menu. The High temperature limit should be adjusted from 15 to 20F higher than the maximum operating temperature.
5.3 STARTUP PROCEDURE Before starting the boiler, make sure that the heating distribution design is made so that the heating elements will come on only when water is circulating in the boiler. 1) Fill the boiler as described in Section 5.1. 2) Set the boiler operating temperature as
described in Section 4. 3) Cancel all heating demand from the
distribution system. 4) Turn on the boiler power breakers
and switch. 5) The main contactors should be activated in
sequence and the controller display shall be lighted. The heating elements shall not come on because there is no heat demand applied to the controller and if there is no water circulation in the unit.
6) Apply a heat demand. If the boiler target temperature is higher than the boiler water temperature, the heating elements shall come on in sequence more or less rapidly depending on the differential between the values.
N.B. It is normal that the elements be activated very rapidly during the boiler start-up since this temperature differential is generally high at this moment.
WARNING !
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 65.
7) When the boiler capacity has reached 100% as displayed on the controller, measure the amperage and voltage values drawn by the unit. These values shall be close to those shown on the boiler name plate.
8) Slow down the heat demand from the heating system. The boiler temperature shall gradually increase and the boiler capacity shall drop gradually and stabilize when the boiler temperature will reach a temperature near the target temperature.
9) When the heating request is completed, the circulating pump can continue to operate (depending on the operating mode or the purge time) or switch off. The heating elements stop working.
10) Check the operation of the adjustable high-limit mechanical control.
11) Check the operation of the Low Water Cut OFF by pressing its test button during 5 sec.
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 66.
SECTION 6 : TROUBLESHOOTING The troubleshooting section shows the various error messages that can occur during abnormal operation of the boiler. It is possible to change the limits of some alarms on the controller in the Limit Setting.
6.1 WARNING LIGHTS The LEDs above the navigation buttons indicate 3 different boiler states.
Active warning
light Boiler status
Green Normal operation of the boiler
Yellow
One or more alarms are active. These alarms do not prevent the operation of the boiler; the boiler continues to operate in normal mode. Ex. The controller detects a problem with the amperage reading sensor.
Red
A critical alarm is active, accompanied by the buzzer (if active). Ex. A high limit alarm is active
6.2 OPERATING PROBLEM IDENTIFICATION An alarm log is available in the BOILER CONFIG / ALARM / ALARM LOG. Each alarm is recorded with its alarm code, the time and date. The register can record up to 30 alarms.
6.2.1 EXTERNAL HL / LWCO When this alarm is present, the indicator light to the left of the boiler lights red. This alarm happens when one of the two external sensors (External fault Low Water Cut Off or External High limit) is triggered. Look for the cause of this contact opening which normally occurs when there is a lack of water in the boiler according to the low water level sensor (Standard on 120 kW models and higher) or when the high temperature limit control detects a temperature higher than 210°F.
The external alarm contact will be activated immediately if it has been activated (Ext. Alarm Contact) in the Alarm menu. The heating elements stop working and will start again when the water level returns to normal. If this alarm happens 3 times in 1 hour, the boiler will be set in Lock out mode.
6.2.2 SENSOR ( SE ) The Sensor alarm is activated when the controller detects a problem with a sensor. This alarm usually appears with another alarm, for example the flow rate alarm (F) and the sensor alarm (SE), this help target a flow sensor problem, for example. See Table 13 for comparison of Resistance measurements against temperature for the outdoor sensor.
6.2.3 LOW LIMIT ( LL ) The LL alarm is activated when the temperature differential between the set-point temperature and the boiler output temperature is higher than Delta T.LL and this period is higher than the LL delay. The heating elements remain in operation. The screen will automatically return to its normal state. When the temperature of the boiler approaches the set temperature.
6.2.4 FLOW ( F ) (Available only on SCR model) The flow alarm is triggered when the theoretical flow calculation is below the manufacturer's authorized flow limit.
6.2.5 CURRENT ( A ) (Available only on SCR model) The Current alarm is triggered when there is a difference of more than 20% between the measured current (Available only on SCR
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 67.
model) and the calculated theoretical current. This may indicate an electrical problem from a wrong connection.
6.2.6 HL TEMPERATURE ( HL ) The outlet temperature of the boiler is above the high limit allowed. This alarm triggers the deactivation of the heating elements of the boiler. The boiler is restarted when the temperature drops below the high limit (and the set-point) If the boiler is in this alarm state for more than 25 minutes, the boiler switches to Lock Out mode.
6.2.7 LOW PRESSURE ( P ) The Low Pressure alarm is activated when the pressure inside the boiler is below the allowed limit (default: 5 psi).
6.2.8 HIGH PRESSURE ( P ) The High Pressure alarm is activated when the pressure inside the boiler is above the allowed
limit (depending on the maximum boiler pressure)
6.2.9 LOCK OUT
Lock out mode is activated after 3 major alarms have been activated within one hour. When the lock mode is activated, the boiler is deactivated and can only be restarted by restarting the boiler (to the left of the control panel) or by using the reset Lock Out function (in the alarm setting menu).
Tableau 12 : Resistance (Ohm) according to the outdoor sensor measuring temperature
Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 68.
SECTION 7 : MAINTENANCE
Properly maintained, your boiler will provide years of dependable, trouble free service. It is recommended that a regular routine maintenance program be established and followed by the user. Components are subject to eventual failure that requires service. Failure to use the correct procedures or parts in these circumstances may make the unit unsafe or reduce the life of the boiler. The owner should have the following inspection and maintenance procedures performed:
7.1 BOILER WATER PIPING
YEARLY VISUAL INSPECTION
Check all piping for signs of leakage near joints, unions and shut-off valves. Repair as needed.
7.2 PRESSURE RELIEF VALVE
TWICE A YEAR
Check for possible leak at the outlet of the safety relief valve. If a leak is detected and the pressure at the indicator is less than 28psi, change the safety relief valve with a new one having similar characteristics. If the pressure is higher than 28psi, ask your heating service agency to determine the cause of the high pressure and have it corrected rapidly. Do not plug the outlet of this valve if a dripping condition occurs.
7.3 AIR PURGE
TWICE A YEAR
Check for proper operation of the automatic air purgers and activate manual air vents to eliminate air present.
7.4 ELECTRICAL INSPECTION
ANNUALLY
It is recommended to perform a visual inspection of the boiler electric compartment annually, during the heating season, to ensure it is watertight and that there are no signs of component or wiring overheating. Repair as soon as possible if necessary. Defective components should always be replaced with the Original Manufacturer’s parts. The inspection should also include a check of the main temperature controls in operation as well as an amperage reading to verify the proper operation of all the heating elements.
The manufacturer's warranty DOES NOT cover a tank breakage caused by improper installation or maintenance. If the boiler safety valve opens periodically, this may be caused by the expansion tank. Immediately call a qualified technician to inspect and remedy the problem. NOTE: To prevent premature tank failure, the air trapped inside the tank must be purged periodically.
Before manually operating the relief valve, make certain no one will be sprayed with the hot water released by its opening. The water may be hot enough to create a SCALD hazard. The water released should be directed to a suitable drain to prevent injury or damage.
DANGER !
WARNING !
VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 69.
VOLTMAX LIMITED WARRANTY
Warranty Coverage for Commercial Installation
Thermo 2000 Inc. warrants to the original purchaser that the DTHUltra tank installed in a commercial setting for ten (10) years. Commercial setting shall mean use in other than residential setting stated above in the residential setting definition. In the event that a leak should develop and occur within this limited warranty period due to defective material or workmanship, such leak having been verified by an authorized company representative, Thermo 2000 Inc. will repair or replace at our sole option the failed unit with the nearest comparable model at the time of replacement. The original purchaser is responsible for all costs associated with the removal and reinstallation, shipping and handling to and from Manufacturer. The replacement unit will be warranted for the remaining portion of the original Warranty.
Limited two-year warranty on all VOLTMAX components & parts All other DTHUltra components & parts are warranted for a period of two (2) years against defects due to defective material or workmanship. The original purchaser is responsible for all costs associated with the removal and reinstallation, shipping and handling to and from Manufacturer. The components, repaired or replaced are warranted for the residual period of the initial warranty on the unit.
Limitations
Thermo 2000 shall not be responsible for any damage, loss, and inconvenience of any nature whatsoever, directly or indirectly, relating to the breakdown or malfunction of the unit. This warranty limits its beneficiary’s rights. Nevertheless, the beneficiary may have other rights, which vary from state to state. This warranty replaces any other expressed or implicit warranty and constitutes the sole obligation of Thermo 2000 towards the consumer. The warranty does not cover cost of removal, reinstallation or shipping to repair or replace the unit, nor administration fees incurred by the original consumer purchaser. Thermo 2000 reserves its rights to make changes in the details of design, construction, or material, as shall in its judgment constitute an improvement of former practices. This warranty is valid only for installations made within the territorial limits of Canada and the United States.
Warranty service procedure
Only authorized VOLTMAX retailers may handle warranty claims. The owner or contractor must provide the defective equipment to Thermo 2000 with the following details: the model, the serial number, a copy of the original invoice and the owner identification certificate.
Exclusions This warranty is void and shall not apply if: A) Defects or malfunctions resulting from installation, repair,
maintenance and/or usage that are not done in conformity with the manufacturer’s installation manual; or
B) Defects or malfunctions resulting from installation, maintenance, or repair that are not done in accordance with regulations in force; or
C) Defects or malfunctions resulting from improper installation, maintenance or repair done carelessly or resulting from consumer damage (improper maintenance, misuse, abuse, accident or alteration); or
D) Installation in which a relief valve (pressure) is not installed or if it is not functioning properly, or when it is not connected to a drain to avoid damage to the property; or
E) Installation in which liquid circulating in the tank does not remain in closed circuit or installation in which piping is leaking; or
F) A polybutylene pipe or radiant panel installation without an oxygen absorption barrier is used; or
G) Installation where the acidity of water is not within the normal Environmental Protection Agency (EPA) (between pH 6.5 – 8.5) guidelines or the water contains abnormal levels of particulate matter or water exceeding 10.5 gpg; or
H) Your home contains any type of water softener system and the unit is not installed and maintained in accordance with the manufacturer specifications; or
I) The DTH Ultra unit is being subject to non-authorized modifications; or
J) Defects or malfunction resulting of storing or handling done elsewhere than Thermo 2000’s manufacturing plant; or
K) Units on which the serial number is removed or obliterated.