Isolation Valve Instructions ELX-400 - 1000kBTUh Boiler Models Part # 7550P-985, ELX-1500 - 2000kBTUh Boiler Models Part # 7550P-986 272 Duchaine Blvd. New Bedford, MA 02745 1(800) 323-9651 lp-754 Rev. 12.7.20 STOP! Follow these instructions or warranty will be void! Installation Must Comply With: 1. National Electrical Code 2. In Canada, CSA C22.1 Canadian Electrical Code Part 1, and CGA No. B149 (latest version) 3. Local, state, provincial, and national codes, laws, regulations, and ordinances. This installation shall be done by a qualified service agency in accordance with these instructions, all applicable codes, and requirements of the authority having jurisdiction. Failure to follow these instructions could result in substantial property damage, severe personal injury, or death. Included with Kit 7550P-985: Item # Part # Description Quantity 1 7550P-615 BELIMO MOTORIZED ISOLATION VALVE 1 2 7550P-613 2” THREADED FLANGE 2 3 7550P-614 5/8” - 11 X 2 1/2” LONG BOLTS 8 4 7550P-612 WASHER FOR 5/8” BOLT 8 LP-754 Instructions 1 Tools Required (Not Included): 15/16” Ratchet, Socket driver, or Wrench Flat Head Screwdriver Remove all items from the packaging and ensure that all parts and accessories are included in the kit. Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee. Installer - Read all instructions in this manual before installing. Perform steps in the given order. Obey all local codes. Obtain all applicable permits before installing this isolation valve. NOTE: Install all components in such a manner that does not reduce the performance of any fire rated assembly. User - These instructions are for use only by a qualified heating installer / service technician. FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH. Figure 1 - Installed 400 - 1000kBTU Model Valve Included with Kit 7550P-986: Item # Part # Description Quantity 1 7550P-038 BELIMO MOTORIZED ISOLATION VALVE 1 2 7550P-614 5/8” - 11 X 2 1/2” LONG BOLTS 8 3 7550P-612 WASHER FOR 5/8” BOLT 8 LP-754 Instructions 1 Preparing for Installation: When working on heating equipment, observe all precautions in the literature, on tags, and on labels attached to the boiler. Follow all safety codes. Wear safety glasses and work gloves. Have a fire extinguisher available. DO NOT power or fill the boiler with water. It is best practice to install this kit BEFORE powering or filling the boiler. If the boiler IS powered and/or filled with water, turn off power to the boiler, and valve it off to isolate it from the system. Then drain the boiler. Close the drain valve after draining. Valve Orientation: The valve can be oriented in any position as long as the actuator does not go below the horizontal plane. See the orientation guide from Belimo attached to the valve. Installing the Valve on ELX-400 - 1000 Models: 1. Use pipe dope / tape to thread one of the 2” flanges onto the supply pipe of the boiler. 2. Install the isolation valve using the supplied bolts and washers. 3. Install the other 2” flange to the isolation valve using the supplied bolts and flange. See Figure 1. NOTE: A separate service valve MUST be installed for each boiler. Do not overtighten any of the bolts as this may damage the threads and prevent the bolts from turning. Replacement bolts are not included in this kit. These valves DO NOT qualify as service valves. Installing the Valve on ELX-1500 - 2000 Models: Install the isolation valve using the supplied bolts and washers. See Figure 2. NOTE: A separate service valve MUST be installed for each boiler. Figure 2 - Installed 1500 - 2000kBTU Model Valve
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Isolation Valve InstructionsELX-400 - 1000kBTUh Boiler Models Part # 7550P-985, ELX-1500 - 2000kBTUh Boiler Models Part # 7550P-986
272 Duchaine Blvd. New Bedford, MA 02745 1(800) 323-9651lp-754 Rev. 12.7.20
STOP! Follow these instructions or warranty will be void!
Installation Must Comply With:1. National Electrical Code2. In Canada, CSA C22.1 Canadian Electrical Code Part 1, and CGA No. B149 (latest version)3. Local, state, provincial, and national codes, laws, regulations, and ordinances.
This installation shall be done by a qualified service agency in accordance with these instructions, all applicable codes, and requirements of the authority having jurisdiction. Failure to follow these instructions could result in substantial property damage, severe personal injury, or death.
Included with Kit 7550P-985:Item # Part # Description Quantity
1 7550P-615 BELIMO MOTORIZED ISOLATION VALVE 1
2 7550P-613 2” THREADED FLANGE 2
3 7550P-614 5/8” - 11 X 2 1/2” LONG BOLTS 8
4 7550P-612 WASHER FOR 5/8” BOLT 8
LP-754 Instructions 1
Tools Required (Not Included):15/16” Ratchet, Socket driver, or WrenchFlat Head Screwdriver
Remove all items from the packaging and ensure that all parts and accessories are included in the kit. Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.
Installer - Read all instructions in this manual before installing. Perform steps in the given order. Obey all local codes. Obtain all applicable permits before installing this isolation valve.
NOTE: Install all components in such a manner that does not reduce the performance of any fire rated assembly.
User - These instructions are for use only by a qualified heating installer / service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.
Figure 1 - Installed 400 - 1000kBTU Model Valve
Included with Kit 7550P-986:Item # Part # Description Quantity
1 7550P-038 BELIMO MOTORIZED ISOLATION VALVE 1
2 7550P-614 5/8” - 11 X 2 1/2” LONG BOLTS 8
3 7550P-612 WASHER FOR 5/8” BOLT 8
LP-754 Instructions 1
Preparing for Installation:When working on heating equipment, observe all precautions in the literature, on tags, and on labels attached to the boiler. Follow all safety codes. Wear safety glasses and work gloves. Have a fire extinguisher available.DO NOT power or fill the boiler with water. It is best practice to install this kit BEFORE powering or filling the boiler.If the boiler IS powered and/or filled with water, turn off power to the boiler, and valve it off to isolate it from the system. Then drain the boiler. Close the drain valve after draining.
Valve Orientation:The valve can be oriented in any position as long as the actuator does not go below the horizontal plane. See the orientation guide from Belimo attached to the valve.
Installing the Valve on ELX-400 - 1000 Models:1. Use pipe dope / tape to thread one of the 2” flanges onto the
supply pipe of the boiler.2. Install the isolation valve using the supplied bolts and washers. 3. Install the other 2” flange to the isolation valve using the supplied
bolts and flange. See Figure 1.NOTE: A separate service valve MUST be installed for each boiler.
Do not overtighten any of the bolts as this may damage the threads and prevent the bolts from turning. Replacement bolts are not included in this kit.
These valves DO NOT qualify as service valves. Installing the Valve on ELX-1500 - 2000 Models:Install the isolation valve using the supplied bolts and washers. See Figure 2.NOTE: A separate service valve MUST be installed for each boiler.
Figure 2 - Installed 1500 - 2000kBTU Model Valve
lp-754 Rev. 12.7.20
2
Valve Wiring:The valves are supplied with 16 feet of power cable. The power cable is permanently connected to the valve and cannot be removed.NOTE: Avoid excess wire length. The power cable may be cut, stripped, and connected to reduce length. Ensure enough slack to avoid wire damage.
Figure 3 - Piping Drawing
Figure 4 - Valve Wiring
Figure 5 - 400 - 1000kBTU Model Wiring
Piping Example:
Field Supplied
Jumper
Figure 6 - 1500 - 2000kBTU Model Wiring
WARNING! LIVE ELECTRICAL COMPONENTS!During installation, testing, servicing and troubleshooting of this product, it may be necessary to work with live electrical components. Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks. Failure to follow all electrical safety precautions when exposed to live electrical components could result in serious personal injury or death.
Wiring 400 - 1000kBTU Models: Wiring 1500 - 2000kBTU Models:
NOTE: Requires a small field supplied 120V jumper from L1 to center common terminal on the CH pump output.
The thermostat (TT) must always be closed when the pumps are running.
lp-754 Rev. 12.7.20
3
Starting the Boiler, Test Instructions, and Instructions for Opening the Valve if Valve Fails:1. Turn the water supply on and refill the boiler. Check for leaks around the boiler, installed components, and associated piping. Fill and purge as described in the boiler installation manual. Ensure all air is purged before proceeding.
WARNING!The boiler must be full of water before it is powered. Failure to ensure the boiler is full of water could result in substantial property damage, serious personal injury, or death.
2. Power on the boiler.
To Test the Valve:1. Enter Service Mode. Service Mode can be accessed from the Home Screen or by scrolling through the Installer Settings. Input Access Code 928 when prompted to enter Service Mode.2. Toggle the Boiler Pump ON. The isolation valve will open when the pump engages.3. If the isolation valve does not open, toggle the Boiler Pump OFF. Turn power off to the boiler and check wiring.4. After wiring is corrected, restore power to the boiler, enter Service Mode, and toggle the Boiler Pump ON again.
Pump Service Mode
Internal LWCO Test
Service Mode
On/O�
Boiler Pump
READY
DWH Pump
4500
5000
1700
4500
Setpoint
MAX
MIN
Actual TestOFF
ON
ONReset
OFF
SystemPump
PWM 40%
PRESS SERVICE RESETAFTER PERFORMINGREQUIRED SERVICE
0V
0-10 Volt
OFF
OFF
ON
ON
ON
OFF
Service Mode
ON
141 F74 F
Gas Valve: ONFlame Current: 4.7 uA PREVIOUS
Service Mode - Pump Test Toggle to test Pump / Valve operation.
Maintenance Reset
Supply
Return
Figure 7 - Service Mode Screen - Pump Test
If the Valve or Valve Power Should Fail:1. Insert the included handle into the valve. See Figure 8.2. Turn the handle clockwise until the valve fully opens (until the handle will not turn any more). Then toggle the switch on the valve to lock it open. See Figure 9. Heat transfer fluid will now be able to circulate through the system.3. To close the valve, simply toggle the switch from locked to unlocked. The valve will return to the closed position. See Figure 10.
Figure 8 - Handle Installed in Valve
Figure 9 - Valve Open and Locked Figure 10 - Valve Closed and Unlocked
Locked
Open
Closed
Unlocked
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