Brivis Service Manual CC3 Gas Ducted Heater Compact Classicbrivis.com.au/marketing/manuals/heating/Manual - Service/407 Issue... · Service Manual 407 Compact Classic Series – 06/11/13

Service Manual 407 Compact Classic Series – 06/11/13

1

Brivis Service Manual CC3 Gas Ducted Heater

Compact Classic

Service shall be carried out only by Authorised Personnel. This Service

Manual must NOT be left with the Owner, or distributed to other persons

not permitted to obtain this information by Brivis Climate Systems.


2

Issue Date Description 1

Sept 13

Release of the CC3-15,20,25,30 NG

CC3-20XA, 25XA, 30XA NG


3

1. Table of Contents 1. Table of Contents .................................................................................... 3

1.1 SCOPE ................................................................................................................... 5

1.1.1 Brivis Classic CC3 Model Gas Ducted Heater ........................................................ 5

2. Heater Operation ................................................................................... 11

2.1 Circuit Diagram ..................................................................................................... 11

2.2 Wiring Colour Code .............................................................................................. 12

2.3 Motor Wiring Diagrams ......................................................................................... 13

2.4 Combustion Fan Resistance ................................................................................. 13

2.5 CC3 Gas Ducted Unit Components ...................................................................... 14

2.6 Gas Valve Operation ............................................................................................ 14

2.7 Burner Operation .................................................................................................. 14

3. Operation Overview .............................................................................. 15

3.1 HCDSI24 -1 Control Board ................................................................................... 16

3.2 Spark Igniter Operation ......................................................................................... 17

3.3 Flame Sensor Operation ....................................................................................... 17

3.4 Combustion Fan Operation ................................................................................... 17

3.5 Pressure Switch Operation ................................................................................... 18

3.6 Main Fan Assembly Operation.............................................................................. 18

3.7 Operation Flow Charts .......................................................................................... 19

3.8 Heater “Shut down” Flow Chart ............................................................................ 20

4. INSTALLATION & COMMISSIONING .................................................... 21

5. TROUBLESHOOTING ............................................................................ 21

5.1 LED FLASH CODES ............................................................................................ 21

5.2 One flash - Over heat condition ............................................................................ 23

5.3 Two flashes - Pressure switch inactive ................................................................. 24

5.4 Three flashes – Purge / Interwait .......................................................................... 25

5.5 Four flashes - Pressure switch lockout ................................................................. 25

5.6 Five flashes – Ignition lockout ............................................................................... 26

5.7 Six Flashes – valve fault lockout ........................................................................... 26

5.8 Seven flashes – Over temperature lockout ........................................................... 27

5.9 Eight flashes – Frequency lockout – timing fault ................................................... 27

5.10 Nine flashes - flame lockout invalid flame A/D value ............................................ 28

5.11 Ten flashes – False flame ..................................................................................... 28

5.12 Eleven flashes - SafeStart lockout ........................................................................ 29

5.13 Twelve flashes – Secondary safeguard timing fault .............................................. 29

5.14 Three slow flashes - Ground fault lockout ............................................................. 30

6. MAIN COMPONENTS SERVICING ........................................................ 31

6.1 Gas valve servicing ............................................................................................... 31

Gas valve servicing (cont) ............................................................................................... 32

6.2 Combustion fan servicing ..................................................................................... 33

6.3 Spark igniter servicing .......................................................................................... 34

6.4 Flame sensor servicing ......................................................................................... 34

6.5 Pressure switch servicing ..................................................................................... 35

6.6 Main fan assembly servicing ................................................................................. 35

6.7 Unit operation ....................................................................................................... 36


4

7. DISMANTLING PROCEDURES ............................................................. 37

7.1 Burner assembly removal ..................................................................................... 37

7.2 Gas manifold assembly removal ........................................................................... 37

7.3 Gas valve removal ................................................................................................ 38

7.4 Pressure switch assembly removal ....................................................................... 38

7.5 Combustion fan removal ....................................................................................... 39

7.6 HCDSI24-1 Electronic control board removal ....................................................... 39

7.7 240 to 24 Volt transformer removal ....................................................................... 39

7.8 Heat exchanger removal ....................................................................................... 40

7.8.1 Remove from the top. ........................................................................................... 40

7.8.2 Remove from the front .......................................................................................... 40

7.9 Flue spigot removal .............................................................................................. 41

7.10 Flue instructions .................................................................................................... 42

7.11 Main fan assembly removal .................................................................................. 43

7.12 Splitting internal model heaters............................................................................. 43

NOTES: ........................................................................................................ 45


5

1.1 SCOPE This Service Manual contains information relevant to servicing a Brivis CC3 Gas Ducted heaters. It is intended for Service personnel who have received adequate training on Brivis Gas Fired Ducted Central Heaters, in particular Brivis series heaters.

1.1.1 Brivis Classic CC3 Model Gas Ducted Heater

The New Brivis Compact Classic CC3 series ducted central heater is an updated Model to the Classic Wombat range heater. The Brivis CC3 Ducted central heater has a new electronic control system and combustion now fan forced.

The model range as follows:

Model KiloWatt Star Rating CC315 15 3 CC320 19 3.5 CC320XA 19 3.5 CC325 23.5 3.1 CC325XA 23.5 3.1 CC330 30 3.3 CC330XA 30 3.3

The New Brivis Compact Classic CC3 Gas ducted heater consists of the following features:

• The Tytronics HCDSI24-1DT Gas Fired ducted Heater control board with LED diagnostic display.

• A direct main burner ignition system.

• Single speed fan forced combustion process.

• Supply air and flame roll out over temperature safety shutdown switches.

• An external pressure switch so once the combustion fan pressure is sufficient it ensures the correct burner operation.

• Fixed Speed main circulating fan, with three speed options.

• All model heaters operate on a conventional 24Volt manual or programmable thermostat.


6

The main sections covered include: • Heater operation

• Troubleshooting

• Servicing

• Component Removal/Assembly Procedures

• Technical Specifications

Further information on installation and operation of Brivis Compact Classic heaters can be obtained from the Heating Installer’s Manual and Heating Owner’s manual

Note: Safety Warning

• DO NOT PLACE ARTICLES ON OR AGAINST THIS APPLIANCE.

• DO NOT USE OR STORE FLAMMABLE MATERIALS NEAR THIS APPLIANCE.

• DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION.

• DO NOT MODIFY THIS APPLIANCE.


7

Technical Information CC3 15

AGA Approval No.: Energy Label Star Rating: 3 stars 173 MJ/m3/Year

Dimensions Width Height Depth Weight

Cabinet 385mm 604mm 724mm 52 kg

Duct Connection

300mm

Gas Type Natural Gas

Input (max) 70MJ/h

Output (max) 15kW

Burner Pressure (max) 0.86KPa

Gas Injector Orifice

Main Burner 2.25mm

Fan Motor Standard

Model Fasco

Model No. 808555MVA-A22

Watts 250 Watts

Amps 1.65Amps

Capacitor 8uF

Fan Impellor Size 240mm x 180mm (9” X7”)

Combustion Fan:

Model. Sohen

Model No. FL120042Y - 13

Watts. 60 Watts

Amps 0.55 Amps

Resistance 40.6 Ω

Return Air Grille Size

With Filter 0.30m2

No Filter 0.21m2

Airflow @ Total Static Pressure 50 Pa 75 Pa 100 Pa 125 Pa

Standard 540l/s 520l/s 500l/s 480l/s

Gas Valves: VR8215S,T Honeywell

Pressure Switch: Cleveland NS2 diaphragm switch 90pa ±12pa

Main Burner:. In shot Burner

Ignition System Tytronics HCDSI24-1DT control box – Intermittent Sparking Pilot.

Heat Exchanger: Aluminised Steel Tubes

Control Fuse: 2 Amp type 3AG. Slow blow

Transformer: Model B024702 240 – 24/12V, 50HZ, 1.75Amps .

Over Temperature Switch:

Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC).

Flame Roll-Out Sensor (AFRO):

Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC).

. Electronic Heater Controller: FEATURES: Tytronics HCDSI24-1DT control box with LED diagnostic display, flame roll-out Klixon , direct main in-shot burners, induced combustion airflow, circulation air fan has an optional 3 speeds for heating. Wiring terminal connection for thermostat / system with heat.

No add on cooling or fan only capability.


8


AGA Approval No.: Energy Label Star Rating: 3.5 stars 160 MJ/m3/Year



Duct Connection Standard Xair

300mm 350mm

Gas Type: Natural Gas

Input (max) 90MJ/h

Output (max) 20kW



Main Burner 2.25mm

Fan Motor Standard Extra air

Model Fasco Fasco

Model No. 808555NVA-A13 808555NVA-A13

Watts 315 Watts 315 Watts

Amps 2.5 Amps 2.5 Amps

Capacitor 4 uF 4 Uf

Fan Impellor Size 240mm x 180mm (9” X7”) 240mm x 180mm (9” X7”)

Combustion Fan:

Model. Sohen


Watts. 60 Watts

Amps 0.55 Amps

Resistance 40.6 Ω

Return Air Grille Size Standard Extra air

With Filter 0.30 m2 0.35 m2

No Filter 0.24 m2 0.24 m2



Extra Air 625l/s 596l/s 570l/s 545l/s








Over Temperature Switch: Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC). Flame Roll-Out Sensor (AFRO): Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC). Electronic Heater Controller:

FEATURES: Tytronics HCDSI24-1DT control box with LED diagnostic display, flame roll-out Klixon , direct main in-shot burners, induced combustion airflow, circulation air fan has an optional 3 speeds for heating. Wiring terminal connection for thermostat / system with heat.



9






300mm 350mm


Input (max) 107MJ/h

Output (max) 25kW



Main Burner 2.35mm


Model Fasco Fasco

Model No. 808555 NVA – A13 808555 NVA – A13

Watts 425 Watt 425 Watt

Amps 2.5Amps 2.5 Amps

Capacitor 10 uF 10uF


Combustion Fan:

Model. Fime GRO4100


Watts. 60 Watts

Amps 0.55 Amps

Resistance 24.3 Ω


With Filter 0.33m2 0.38m2

No Filter 0.23m2 0.26m2



Extra Air 680l/s 650 l/s 620 l/s 593l/s








Over Temperature Switch: Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC). Flame Roll-Out Sensor (AFRO): Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC).

. Electronic Heater Controller: FEATURES: Tytronics HCDSI24-1DT control box with LED diagnostic display, flame roll-out Klixon , direct main in-shot burners, induced combustion airflow, circulation air fan has an optional 3 speeds for heating. Wiring terminal connection for thermostat / system with heat.



10






350mm 400mm


Input (max) 133MJ/h

Output (max) 30kW



Main Burner 2.25mm


Model Fasco Fasco

Model No. 806155082 -17 806155082 -17

Watts 600 Watt 600 Watt

Amps 4.4 Amps 4.4 Amps

Capacitor 25uF 25uF


Combustion Fan:

Model. Fime

Model No. GRO4100

Watts. 60 Watts

Amps 0.55 Amps

Resistance 24.3 Ω


With Filter 0.51 m2 0.54 m2

No Filter 0.35 m2 0.38 m2



Extra Air 1060l/s 1040 l/s 1000 l/s 980l/s








Over Temperature Switch: Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC). Flame Roll-Out Sensor (AFRO): Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC). . Electronic Heater Controller: FEATURES: Tytronics HCDSI24-1DT control box with LED diagnostic display, flame roll-out Klixon , direct main in-shot burners, induced combustion airflow, circulation air fan has an optional 3 speeds for heating. Wiring terminal connection for thermostat / system with heat.



11

2. Heater Operation This section provides an overview of the operation of the CC3 series heaters. It is vital that an understanding of how CC3 series heaters, and their components, operate in order to service the CC3 Series heater effectively and efficiently.

2.1 Circuit Diagram


12

2.2 Wiring Colour Code Low Voltage (From left to right refer to diagram in section 1.1)

Pin Function Colour

1 Gas Valve Violet

2 Gas Valve Grey

3 Pressure Switch Yellow

4 W White

5 Hi-Limit Black

6 24Vac (Hi-Limit) Orange

7 24Vac Red

8 Ground Green High Voltage (From left to right refer to diagram in section 1.1)

Pin Function Colour

1 Flame Sense White

2 Neutral Blue

3 Combustion Fan Brown

4 Circulation Fan Red

5 Active Brown


13

2.3 Motor Wiring Diagrams

2.4 Combustion Fan Resistance

Combustion Fan Motor Resistance Reading

Sohen

Winding Resistance @20oC

40.6 Ohms

Fime


24.3 Ohms

Main Fan

Motor

Model Fasco 250W

808555MVA-A22 Fasco 315W

80855NVA-A13

Fasco 315W 80855NVA-A13

(425Watt)

Fasco 600W 806155082-17

Power 240Volts 240Volts 240Volts 240Volts

Maximum Current 1.65 Amp 2.5 Amp 2.5 Amp 4.4 Amp

Capacitor 8 µF 4 µF 10 µF 25 µF

High Winding Resistance @ 20°C

20.6 Ohms 11 Ohms 20.5 Ohms 6.9 Ohms

Medium Winding Resistance @ 20°C

26.1 Ohms 14.6 Ohms 26 Ohms 8 Ohms

Low Winding Resistance @ 20°C

31.6 Ohms 18 Ohms 31.5 Ohms 9.3 Ohms

Impellor Size – diam. x width

225mm x 180 mm

240mm x 180 mm

225mm x 180 mm

270mm x 270 mm


14

Pressure switch

2.5 CC3 Gas Ducted Unit Components

PHOTO OF THE UNIT AND ITS COMPONENTS ARE REQUIRED TO BE PLACED HERE.

2.6 Gas Valve Operation The gas valves function is to provide gas for combustion. The gas valve is a Honeywell VR8215S,T gas valve. For natural gas it

has been optimised for direct ignition application and includes a on and off switch and a pressure regulator.

The gas valve is controlled by the HCDSI 24 -1 PCB control. Please see the technical data sheet for the optimum gas pressures.

2.7 Burner Operation The burners are known as “In-shot” burners. They consist of a venturi, which helps to draw air into the top of the burner, near

the injectors. This is known as primary air and is used for gas mixing before combustion occurs. Once the gas and primary air

leave the burner port, at the exit of the burner, combustion begins, and secondary air is added to the flame from the suction force

developed from the combustion fan. There is a cross lighting gallery near the burner exit, which allows for cross ignition

between each adjacent burner.

Transformer

In-shot burners Burner manifold

Flue outlet

Gas inlet

Gas Valve

Combustion fan

Pressure switch

Control board

Main Circulating fan

Burner Assembly

Supply Air over heat switch

Heat Exchanger

Note: Fan orientation shown is for 15, 20, and 30 the only. The CC325 has a different fan orientation to the above diagram, i.e upside down.


15

3. Operation Overview The Brivis CC3 series is a 3 Star range suited for internal installations on Natural Gas only. The CC3 series heater has a combustion system consisting of a fixed speed combustion fan and direct spark ignition module. The gas valve is on/off only i.e. not modulating and the rate is set for each model. Once the combustion fan pressure switch validates the system pressure is correct the normal start up sequence will begin, refer below. Upon power up the HCDSI24 -1 control board shall perform a system check and allow all of its inputs and outputs to settle. The HCDSI24-1 initiates an ignition cycle upon receiving a call for heat from an external thermostat.

The following will occur:

• The micro-controller shall check that the external flame safety guard is operational. As the flame circuit is earth referenced, additional checks are made to detect an earth disconnect.

• The control board will do a safety check and make sure the pressure switch circuit is open.

• The unit then energises the combustion fan motor, and verifies that the pressure switch closes. The unit will operate for the pre-purge time before continuing to the safety time.

• The unit shall simultaneously energise the spark igniter and gas valve with the intention to light the main gas burner. The igniter shall be energised for at most the duration of the safety time or until a valid flame signal is detected which ever occurs first. Safety time shall cause the gas valve and combustion fan to remain energised for the duration of the call for heat.

• 20 seconds after the warm up period the control board will then power the main supply air fan to its set speed.


16

3.1 HCDSI24 -1 Control Board The HCDSI24 -1 control is a single printed circuit board (PCB) assembly, mounted within a plastic enclosure. The controller provides status and diagnostic information directly through the use of a Green LED indicator. An additional Red LED provides direct indication of the pressure switch status.

HCDSI 24 -1 Control Board

Ignition Plug

240 Volt AC Connections See next page for colour coding and wiring

24 Volt AC Connections

2 amp fuse

Low Voltage Connection

240 Volt Connections

LED’s


17

3.2 Spark Igniter Operation The Spark Igniter consists of a spark probe and earth probe used to create a fixed spark gap. HCDSI 24 -1 generates a spark from the sparker canister across the gap of the sparker probe. This spark gap is located beneath the burner port at one end of the burner rack. Once ignition has occurred and the flame is sensed, the spark igniter stops sparking.

3.3 Flame Sensor Operation The Flame Sensor consists of a single metal probe and is located beneath the burner at the opposite end of the burner rack from the Spark Igniter. When flame is present at this burner, a small electric current passes from the flame sensor through the flame to the closest ground or earth point (either the Burner or Heat Exchanger). HCDSI 24 -1 control monitors the Flame Sensor current level. If it is within an allowable range, the controls then allow for normal operation.

3.4 Combustion Fan Operation The combustion fans primary function is to “draw” air and flame through the heat exchanger. If this combustion airflow is reduced, the combustion quality will be reduced and sooting may occur. If the airflow is reduced considerably, the flames will not be drawn into the heat exchanger. (Fortunately, there are measuring devices to prevent these occurrences from causing an unsafe condition). The combustion fan operates at a fixed fan speed, and is switched on and off by the HCDSI 24 -1 control. When the fan is in operation, the suction effect of the fan creates a (vacuum)+ inside the heat exchanger from the heat exchanger inlet ports all the way through to the combustion fan box on which the combustion fan is mounted. During start-up, the combustion fan performs a pre-purge for approximately 15 seconds. This ensures there is no un-burnt fuel in the heat exchanger. During this phase, the required quantity of air for adequate combustion is confirmed by a vacuum pressure switch. If the airflow is not sufficient, the vacuum pressure will be too low, and the pressure switch will not close circuit. A pressure switch error will be logged and no ignition will occur. During normal operation the vacuum pressure generated by the combustion fan is continually monitored by the pressure switch. If this vacuum pressure drops too low, the pressure switch will go open circuit, the burners will the shut down and an error will be logged. During a normal shut down sequence, the burners will shut down, and the combustion fan will switch off after 5 seconds.


18

3.5 Pressure Switch Operation PRESSURE SWITCH: The pressure switch is a Cleveland NS2 series diaphragm pressure differential activated switch. The CC3 models have one pressure switch. Please see the table below for the operating range. The pressure switch for proving sufficient combustion airflow is located in the vicinity of the combustion fan and measures the vacuum pressure in the heat exchanger outlet box. If there is insufficient vacuum pressure to ensure safe and reliable ignition, or combustion quality, the switch will go open circuit and the 24 volt supply to the gas valve cut.

Model Combustion Airflow Proving Switch Open Circuit Vacuum

Pressure (Pa)

CC315 90±12

CC320 70±12

CC320XA 70±12

CC325 115±12

CC330 115±12

CC330XA 115±12

3.6 Main Fan Assembly Operation ROOM AIR FAN A centrifugal fan and Permanent Split Capacitor (PSC) motor, housed in a metal scroll are used for room air circulation, and this is contained within the fan cabinet. The room fan has 3 speed settings and can be adjusted to obtain the required air flow. The three settings are low, medium and high and can be changed by shifting the position of the fan spade terminal.

Note: Refer to data sheets for fan and capacitor specifications.


19

3.7 Operation Flow Charts Heater “Start up” Flow Chart

Combustion fan hold off (2 sec)

Call from heat from the thermostat

Combustion Fan Prepurge (20 sec)

Ignition

Initiate main fan hold-off time of 20 seconds.

Fan speed ramps up to required speed

Steady state operation

Flame detect time Has flame been detected within 5

seconds?

Ignition retry phase activated (5 Max number of

Ignition attempts)

No

No Flame validate time

Has flame been present

for 5.5 seconds?

Yes

Pressure Switch Closes

Normal operation continues

System checks: Flame sensors earth

Pressure switch open


20

3.8 Heater “Shut down” Flow Chart

Gas valve closes

Heater thermostat switched off

Combustion fan post-purge (5 sec)

Circulation Fan Off Delay 80 Seconds

Main fan turns off


21

4. INSTALLATION & COMMISSIONING REFER TO HEATING INSTALLER’S MANUAL FOR INSTALLATION AND COMMISSIONING INSTRUCTIONS.

5. TROUBLESHOOTING Most failure modes will result in a fault being logged in the HCDSI 24 -1 control board. These faults can be viewed at the control Board. A brief description of each fault code is shown below, followed by detailed troubleshooting for each fault code.

5.1 LED FLASH CODES One green LED is used to display the status of the HCDSI24-1DT. The LED flashes up to 12 times on a 4.8-second repeat to indicate fault status.

LED CONDITION

NORMAL OPERATION

Slow single flash

(200mS flashcode: HCDS123 is functioning normally, and is in an idle state

111111110000000000000000)

Slow double flash

(200mS flashcode: HCDS123 is functioning normally, with the thermostat closed

111100001111000000000000)

FAULT

One flash repeated every 4.8 Overheat condition

seconds (200mS flashcode: Overheat in progress

100000000000000000000000) Overheat switch is disconnected or O/C

Two flash (200mS flashcode: Pressure Switch inactive

101000000000000000000000) Fan running but pressure switch is still open

Fan stopped but pressure switch is still closed

Three flash ( 200mS flashcode: Purge / Interwait

101010000000000000000000) Timer operating eg

Stat off during flame Establishment time

Flame establishment time elapsed without flame

Four flash (200mS flashcode: Pressure Switch Lockout

101010100000000000000000) Pressure Switch not functional

Fail to close timeout / fail to open timeout

Five flash (200mS flashcode: Ignition Lockout - failure to ignite flame.

101010101000000000000000) Max number of re-ignition / spark restoration attempts

has been reached.

Six flash (200mS flashcode Valve Fault Lockout - Valve Detection Failure.

101010101010000000000000) Valve is disconnected.

Gas valve drive relay contacts fail to close.

Gas valve drive Triac fault: Open or half-wave.


22

Seven flash (200mS flashcode: Over-temp Lockout

101010101010100000000000) Too many Hi-Limit activations in latest heat cycles.

Hi-Limit activation continues longer than Hi-Limit fan +

cool down times.

Eight flash (200mS flashcode: Frequency Lockout - Timing fault.

101010101010101000000000) Supply frequency outside operating limits.

Microprocessor clock outside operating limits.

Nine flash (200mS flashcode: Flame Lockout - Invalid Flame A/D valve

101010101010101010000000) Flame sense hardware fault.

Ten flash (200mS flashcode: False Flame

101010101010101010100000) Invalid flame sensed during safe start check or IDLE -

hardware fault.

Eleven Flash SafeStart Lockout - Secondary safeguard timing fault.

(200mS flashcode: Main valve safeguard too slow or failed to activate-

101010101010101010101000) hardware fault.

Twelve flash SafeStart Lockout - Secondary safeguard timing fault.

(200mS flashcode: Safestart checks did not complete in time, no hardware

101010101010101010101010) fault recorded.

3 Slow flashes Ground Fault Lockout - Flame sense fault.

(200mS flashcode: Flame variation detected due to poor earth connection to

1111100111100111100000000) chassis ground. A lockout is a result of a detected fault condition, caused by an operational or a safeguard fault. In the case of a lockout, the unit shall both de-energise the triac drive and stop the control signal to the relay drive circuit. Consequently the gas valve is completely isolated and will close. The unit shall remain in lockout until manually reset. The lockout failure mode shall be distinguished by the status LED flash-code. Each individual flash shall have a 200milli-second sub-period. The sequence shall repeat with an approx five –second period. Lockout shall be cleared by any of the following:

• Power isolation for more than 2 seconds

• Cycle of the Thermostat input 6 times within a 60 seconds, each cycle must be at least 2- seconds in duration.


23

5.2 One flash - Over heat condition

Reason Overheat condition This errors will appear whilst an over temperature is current. The over heat switch or flame rollout circuit is open and measuring a temperature greater than 90 C. The heater’s fan will be forced to operate at its predetermined speed for a specific time period. Supply air over heat and Flame Roll - out All Brivis CC3 models have a supply air over heat switch located near the supply air discharge and is activated when the supply air reaches 90°C. Also if the flame roll out occurs the switch will interrupt the 24 Volt power to the gas valve if flame rollout and over heat occurs. The following will occur.

• The power supply to the gas valve will be terminated.

• The fan will operate immediately, if not already operating. Once the over temperature condition of the switches has cleared and the switch resets (i.e. switch closes within a specific time), a cool down period will operate for a duration of 120sec. Then the normal heating cycle can commence again, provided the wall control is still calling for heat.

Service Check List:

• Check the temperature rise value of the supply air thermistor and nearest outlet temperature, over the room temperature (Return air intake temperature). A 470C. Temperature rise will indicate a true overheat condition.

• Check there are sufficient outlets open on the duct system.

• Check the return air filter (if fitted) is sized correctly and is clean.

• Check that the fan speed is sufficient for the system so that over heating will not result.

• Check the fan motor is functioning correctly, and is not blocked or obstructed.

• Check the ducting has not been crushed, damaged or incorrectly sized.

• Check the return air intake is not subjected to a high temperature from an external source.

• Check the wire loom and plug connections to the switch are not open circuit, i.e. wire fallen off switch.


24

5.3 Two flashes - Pressure switch inactive Reason: Pressure switch inactive

A pressure switch within the appliance provides proof of combustion airflow. During the “ON” phase of the heating cycle the pressure switch has opened, indicating a loss in vacuum pressure. The heating cycle will be forced to its “OFF” state and a restart initiated. If this occurs continuously the unit will lockout and manual reset will be required. During a heating cycle, the unit responds to the state of this switch in the following ways.

Pressure switch fails to open.

Once the unit is calling for heating the control board will first ensure the combustion air pressure switch is open (no air flowing) before energising the combustion fan. How ever If the pressure switch is closed then the unit shall wait for the switch to open for as long as the call for heat is present. If the pressure switch remains closed longer than 30 seconds the corresponding two flash warning flash code is displayed. If the pressure switch remains closed longer than 4 minutes, the unit shall lockout and the four flash fault code is flashed on the status LED. Once lockout occurs, the combustion fan turns off.

Pressure switch fails to close.

If the combustion fan pressure switch does not close shortly after the combustion fan has been energised the unit shall keep the combustion fan energised for 4 minutes, until either the pressure switch closes or the call for heat is removed. If the pressure switch remains open longer than 30 seconds, the 2 flash fault code is displayed. If the pressure switch remains open longer than 4 minutes, the unit shall lockout and the four flash fault code is flashed on the status LED, once lockout occurs the combustion fan turns off.

Service Check List

Vacuum Pressure Checking Procedure

Measure vacuum pressure at the pressure switch during pre-purge (or force an overheat condition, by breaking the overheat switch circuit, to operate the combustion fan). Perform these pressure checks without the pressure switch connected to the pressure hose.

If vacuum pressure is above specification

If the flue has no blockage and you find the vacuum pressure is above the pressure switch’s specified value and pressure switch error still occurs, then the pressure switch may be faulty and should be replaced.

If vacuum pressure is below specification

1. Vacuum pressure hoses are not fitted correctly – check hose connections 2. Vacuum pressure hoses have perished and cracked causing vacuum pressure loss –

check for deterioration. 3. Water trapped in the vacuum pressure hose – check for water traps or presence of

moisture in hoses. Make sure there is no water in the hose when servicing the system. 4. Excessive heat exchanger leakage resulting in vacuum pressure loss – check heat

exchanger for leakage. 5. Combustion fan may be faulty – check according to procedure in section (Combustion

Fan) 6. Flue piping is too restrictive – check against allowable flue pipe configuration

specification including the flue cowl. 7. Flue pipe has collected excessive condensate – check for potential collection points

(there must be a continual fall back to the heater – 20mm rise per Metre).


25

5.4 Three flashes – Purge / Interwait

Purge / Interwait

• Timer operating Eg:

• Stat off during flame establishment time

• Flame establishment time elapsed without flame This failure can be caused by the unit failing to ignite at the start of its on time cycle without a flame being detected.

Service Check List: 1. Check gas pressure or supply pressure 2. Check ignitor is in its right position 3. Check ignitor lead 4. Check gas valve loom and connections 5. Check flame sensors

5.5 Four flashes - Pressure switch lockout

Reason Pressure switch lockout If the combustion fan pressure switch does not close shortly after the combustion fan has been energised, the unit shall keep the combustion fan energised for 4 min, until either the pressure switch closes or the call for heat is removed. If the pressure switch remains open longer than 4 minutes, the unit shall lockout. Once lockout occurs, the combustion fan turns off.

Service Check List:

1. Refer to Check List for 2 flash Pressure switch inactive


26

5.6 Five flashes – Ignition lockout

Reason: Ignition lockout – failure to Ignite flame within the maximum allowable Ignition retry phase. There is a maximum of 5 re-ignition attempts before the control board will lockout. If a valid flame is undetected for the duration of the flame establishment or first safety time, the unit shall enter lockout and flash 5 time fault code on the status LED. The safety time represents the maximum time gas can flow without combustion occurring. Service Check List:

1. Check the igniter high tension lead and terminal connections. 2. Check the igniter rod is clean 3. Check the igniter ceramic insulation is not cracked or damaged. 4. Check igniter is in its right location 5. Check gas pressure or supply pressure 6. Check gas valve loom and connections 7. Check if the control board is sparking

5.7 Six Flashes – valve fault lockout

Reason :

• The gas valve has failed to open and has Detected as failure

• Gas valve drive relay contacts fail to close

• Short open or half wave

• Gas valve drive triac fault

Service Check List:

1. Check the gas valve wiring has not been disconnected. 2. Check that there is no break in the wiring loom. 3. Check that the gas valve has not shorted or is in open circuit. 4. Check voltage to the wiring loom to gas valve. 5. Check the control board if board failure.


27

5.8 Seven flashes – Over temperature lockout Reason Too many overheats activations in latest heat cycle Overheat activation continues longer than overheat fan and cool down Service Check List: Please refer to over heat conditions in this manual.

5.9 Eight flashes – Frequency lockout – timing fault

Reason

• Supply frequency outside operating limits

• Microprocessor clock outside operating limits The frequency check determines that the operating frequency of the micro-controller internal clock is correct. Comparison against the known mains frequency signal, being 24v AC 50Hz, shall be used to make this determination. The duration of this test shall be approximately 0.5 seconds A failure in the clock circuit shall enter the unit into lockout and flash the eight flash on the LED status light. Service Checklist

1. Check power supply. 2. Check polarity at power point. 3. Check transformer voltage. 4. Control board failure.


28

5.10 Nine flashes - flame lockout invalid flame A/D value

Reason

• Flame sense hardware fault.

• Control board start up safety check failure. Service Checklist

1. Check power supply. 2. Check polarity at power point. 3. Check transformer voltage. 4. Check flame sensor. 5. Hardware fault during start up operation.

5.11 Ten flashes – False flame Reason

• Invalid flame sensed during safe start check or IDLE – hardware fault. Detection of flame signal at power-up, while IDLE, or prior to ignition shall cause the unit to enter a volatile lockout and flash ten times on the status LED. Detection of the flame signal variation indicative of a grounding fault shall cause the unit to enter a volatile lockout. Service Checklist

1. Check power supply. 2. Check polarity at power point. 3. Check transformer voltage. 4. Check over heat switch is faulty. 5. Gas valve passing gas.


29

5.12 Eleven flashes - SafeStart lockout Reason

• Main valve safeguard too slow or failed to activate – hardware fault. Confirmation that the secondary safeguard hardware timing circuit is within tolerance. Measurements are made by the micro-controller concerning the ability of the flame circuit to operate the secondary safeguard circuit, and that the timing is within allowable tolerance. The upper limit is the specified flame establishment time. If the safeguard circuit fails verification, the unit shall enter lockout and shall flash eleven flashes on the status LED. Service Checklist


5.13 Twelve flashes – Secondary safeguard timing fault

Reason

• SafeStart checks did not complete in time, no hardware fault recorded. Service Checklist



30

5.14 Three slow flashes - Ground fault lockout

Reason

• Flame variation detected due to poor earth connection to chassis ground.

• There has been a false flame that is detected during a power reset turning on and off.

• There has been a false flame has gone away after an over heat condition has been cleared.

Service Checklist

1. Check the earthing system. 2. Check the control board. 3. Check the flame sensor. 4. Check the gas valve. 5. Check the flame roll out switch. 6. Check the flame roll out switch loom.


31

6. MAIN COMPONENTS SERVICING This section contains the procedures for checking and adjusting (if necessary) main components of the heater. This may be required due to a failure or a routine service.

6.1 Gas valve servicing The diagram below indicates the measurement and adjustment locations. If adjustment to the gas valve is required, remove the cap screw and adjust via the pressure regulator adjustment screw.

VR8215S Direct ignition combination gas controls

Gas valve checking and adjustment (only if required). To check for correct gas valve settings and operation the following should be performed, and adjustments made when necessary. Inlet Pressure Measurement

• Remove the gas inlet tap and replace with a pressure test point.

• Connect a suitable manometer to the test point.

• Turn on the heater and wait for the flame proving period to finish.

• Check that the inlet gas pressure is between 1.1 kPa to 3.5 kPa. Pressures below this level can result in insufficient gas pressure for combustion. If this is the case then this situation should be rectified.

• Remove the manometer and remove the test point.

• Replace the gas inlet tap and test for gas leakage.

Note: Please use an approved sealant.


32

Gas valve servicing (cont) Low Inlet pressures It is possible that low inlet pressure can cause:

• Unreliable ignition if the inlet pressure is below 0.80 kPa at the time of ignition.

• Underrated heat output Burner Pressure Measurement

1. Remove the gas burner pressure tap and replace with a pressure test point. 2. Connect a suitable manometer to the test point. 3. Screw the test point until its fully sitting in the outlet tightly. 4. Loosen the burner pressure test point screw, on the gas valve in the location

shown in the diagram, and connect a suitable manometer immediately. 5. Turn on the heater and wait for the flame proving period to finish. 6. Check the burner gas pressure and if it requires adjusting please follow the below

steps. 7. Unscrew the pressure regulator adjustment cap. 8. There is a adjustment screw under the cap which will adjust the burner pressure. 9. Clockwise will increase the gas pressure. 10. Anticlockwise will decrease the gas pressure. 11. The table below shows the gas pressure for each unit. 12. Turn the unit off and remove the manometer and unscrew the test point and re-

screw the cap back into its place. 13. Please ensure there is no leaks on each of the pressure tap screw.

Note: Please use an approved sealant.

For gas pressure please refer to technical information sheet.


33

6.2 Combustion fan servicing General Service

1. Check that the motor’s shaft spins freely. 2. While in operation during a prepurge, check for any unusual noise, such as bearing or

scraping noise.

If there is any suspicion of an underperforming combustion fan or that the entire system is resulting in low vacuum pressure, the following should be performed:

1. Isolate the heater’s power supply. 2. Check the motor’s winding resistance with the wire looms removed. 3. Re-insert the motor’s wiring loom. 4. Connect a manometer into the combustion fan vacuum pressure hose to measure the

vacuum pressure just prior to the combustion fan. 5. Re-apply power to the heater and force it into an overheat mode to power up the

combustion fan. (Warning: Remember the motor operates with 240 Vac.) 6. Measure the combustion fan vacuum pressure, and ensure that it reaches the value as

specified in the table below.

Combustion Fan Motor Resistance Reading

Sohen


40.6 Ohms

Fime


24.3 Ohms

If the vacuum pressure is below the specified values:

1. Check that the flueing is within the allowable specifications. 2. Look for any physical causes of underperformance such as the build up of soot or silicon

in the combustion fan housing or flue pipe. Clean if necessary. Servicing while removed It may be required to remove the combustion fan to inspect it totally or to try a new combustion fan. Refer to section 6.5 for removal procedure of the combustion fan. For air pressure signals please refer to technical information sheet.


34

11±1.5 mm

8.5±1.5 mm

Sparker probe end is in alignment with burner centreline ±2 mm.

12±2 mm

11±2 mm

6.3 Spark igniter servicing Isolate the heater power and gas supply from the unit. Checking the spark ignitor

1. Unscrew the spark igniter away from the burner 2. Check spark igniter electrode, lead and plug connection 3. Clean igniter probe and make sure there is a spark gap of approx ±2mm. 4. Then reassemble.

Checking spark igniter location relative to burner face

1. Remove the burner assembly as described in removal procedure 5. 2. Measure the distances as shown in the diagram below. 3. Installation is a reversal of the removal procedure.

6.4 Flame sensor servicing Isolate the heater power and gas supply from the unit. Checking the flame sensor

1. Check that the flame sensor rod is clean, located correctly and the lead and plug connection is in good condition.

2. Reassemble. Checking flame sensor location relative to burner face

1. Remove the burner assembly as described in removal procedure 5 2. Measure the distances as shown in the diagram below. 3. Installation is a reversal of the removal procedure.


35

6.5 Pressure switch servicing 1. Isolate the heater power and gas supply from the unit. 2. Tap into the pressure switch line with a PVC T-Piece with a suitable manometer. 3. Check that the pressure switch is opening within the limits specified below as follows: 4. Measure the vacuum pressure and make sure the vent hole and bleed hole are clear

of any foreign material. 5. Make sure the hoses are free of condensation. 6. Check the hoses leading to the pressure switch are clear of foreign material 7. Reassemble.

For Air pressure settings please refer to technical information sheet

6.6 Main fan assembly servicing Internal Models

1. Turn the unit OFF and isolate the power supply. 2. Remove the panel on the fan compartment gas entry side of the heating unit so there

is access to the fan motor assembly. 3. Remove fan housing from cabinet. 4. Remove fan assembly from housing. 5. Clean impellor and motor. 6. Clean housing. 7. Reassemble. 8. Check all wiring cables and plug connections.

Installation is a reversal of the removal procedure.

Bleed Hole (0.4 mm) Vent Hole

(2.3 mm)


36

6.7 Unit operation 1. Check power supply lead is in good condition. 2. Check all gas connections are good and do not leak. 3. Check the wall control wiring connection at the unit is in good condition. 4. Check the maximum burner pressure at the test point provided on the gas valve. 5. Check the duct system airflow distribution, balance and adjust as required. 6. Check the unit’s selected 3 speed fan is appropriate for optimum heat output for the

application.


37

7. DISMANTLING PROCEDURES Before any of the following assemblies or components can be removed, it is important to isolate the heater’s power supply. The lid of the heater will also have to be removed by removing 2 screws at each end of the lid.

7.1 Burner assembly removal 1. Turn the gas isolation valve off and isolate the heater’s power supply 2. Remove the gas valve loom; spark igniter lead, flame sensor lead and flame rollout switch

loom and plate. 3. Remove the gas inlet pipe off the gas valve and move the piping enough to enable the

burner assembly to be removed when ready. 4. Remove the 2 screws that hold the flame rollout switch plate then remove the plate away

from the gas manifold. 5. Remove the other 2 screws holding the burner manifold to the burner assembly and remove

the assembly. 6. Remove the 4 screws holding the burner assembly to the heat exchanger main plate. 7. The burner assembly can now be removed.

Installation is a reversal of the removal procedure with attention to the following points: 1. Ensure that the gas inlet feed-tube is retightened and checked for leaks. 2. Ensure that all looms, wires and leads are not damaged along their length and at the

connectors.

7.2 Gas manifold assembly removal 1. Turn the gas isolation valve off and isolate the heater’s power supply. 2. Remove the gas valve loom from the gas valve. 3. Remove the gas inlet feed-tube off the gas valve. 4. Remove the 2 screws that hold the flame rollout switch plate then remove the plate away

from the gas manifold. 5. Remove the 2 screws holding the gas manifold to the burner assembly. 6. The gas manifold assembly can now be removed.

Installation is a reversal of the removal procedure with attention to the following points: 1. When re-inserting the assembly, ensure that the injectors are inserted into the ring on the

top of the burners correctly. 2. Ensure that the gas inlet feed-tube is retightened and checked for leaks. 3. Ensure that the gas valve loom is not damaged along its length and at the connector.


38

7.3 Gas valve removal

1. Turn the gas isolation valve off and isolate heater’s power supply 2. Disconnect the gas valve loom. 3. Remove the gas inlet feed-tube off the gas valve. 4. Remove the gas valve from the burner manifold by unwinding it in an anti-clockwise

direction. 5. Remove the brass adaptor on the gas valve inlet side of the gas valve if the valve is to be

replaced.

Installation is a reversal of the removal procedure with attention to the following points:

• Clean any threads of excessive gas thread sealant, which are to be re-assembled

• If a new gas valve is to be fitted, apply gas thread sealant to the brass adaptor and finger-tighten onto the gas valve.

• Apply gas thread sealant to the burner manifold feed tube nipple and screw on the gas valve, and then tighten.

• Check for leaks on both sides of the gas valve while in operation.

• If a new gas valve is fitted, ensure that it is reset, including the ignition gas pressure, as outlined in the technical information sheet regarding the unit pressures.

7.4 Pressure switch assembly removal 1. Isolate the heater’s power supply. 2. Remove the hose from the pressure switch. 3. Remove the electrical wires from the pressure switch. 4. Remove the pressure switch fastening screw if the pressure switch is to be replaced.


• Ensure all wiring connections are positively located and that no looms have been damaged.


39

7.5 Combustion fan removal Method 1 – Partial fan removal

1. Isolate the heater’s power supply. 2. Remove the electrical leads off the combustion fan. 3. Remove the 4 screws off the flue adaptor plate that is secured to the unit. 4. Remove 3 screws which fasten the combustion fan down to the combustion fan box. 5. Pry the combustion fan off the box, which will still be fastened by the sealing heat proof

silicon.

Installation is a reversal of the removal procedure with attention to the following points: 1. Clean both surfaces to be re-mated together. 2. Apply sufficient (but not excessive) silicon to the combustion fan’s mating surface.

7.6 HCDSI24-1 Electronic control board removal

1. Isolate the heater’s power supply. 2. Remove the spark igniter lead from the PCB assembly. 3. Remove all other electrical connections from the PCB assembly. 4. Remove the 4 screws that secure the HCDSI 24 -1 to the top plate of the fan compartment.

WARNING: Care should be taken to prevent any damage to the wiring and PCB.



7.7 240 to 24 Volt transformer removal

1. Isolate the heaters power supply. 2. Remove all inter-connecting conductors. 3. Remove the 2 screws that secure the transformer to the top plate of the fan compartment


1.75A Transformer

Nominal Voltage/ Maximum Current

230 VAC / 1.75 A

Secondary Voltage (No Load) (Blue – Yellow) @ 230 VAC

24 – 28.5 VAC

Secondary Voltage (With Load) (Blue -Yellow) @ 230 VAC

24± 3% VAC

Resistance reading on primary wiring @ 200 C 63.6 Ω Resistance reading on Secondary @ 200 C 1.45 Ω


40

7.8 Heat exchanger removal

7.8.1 Remove from the top.

1. Isolate the heater’s power supply. 2. Remove the main wiring looms in the heater combustion chamber. 3. Remove the burner manifold. 4. remove the pressure switch and hose. 5. Remove the burner assembly. 6. Remove the 4 screws that hold the heat shield in the combustion assembly.(2 screws on

the heat exchanger and 2 screws located in the control chamber). 7. Remove the 4 screws that hold the heat exchanger to the frame of the unit. 8. Remove the 4 screws that located external to the unit 2 on the gas valve side of the unit

and the other 2 are located on the combustion flue side of the unit. 9. Then proceed to remove the 4 screws on the side plate of the heat exchanger (gas inlet

side) and remove the side plate. 10. Then raise the heat exchanger making sure the heat exchanger has been fully removed.

7.8.2 Remove from the front

1. Isolate the heater’s power supply. 2. Remove the main wiring looms in the heater combustion chamber. 3. Remove the burner manifold. 4. remove the pressure switch and hose. 5. Remove the burner assembly. 6. Remove the 4 screws that hold the heat shield in the combustion assembly.(2 screws on

the heat exchanger and 2 screws located in the control chamber). 7. Remove the 4 screws that hold the heat exchanger to the frame of the unit. 8. Remove the 4 screws that located external to the unit 2 on the gas valve side of the unit

and the other 2 are located on the combustion flue side of the unit. 9. Then proceed to remove the 4 screws on the side plate of the heat exchanger (gas inlet

side) and remove the side plate. 10. Then slide the heat exchanger through the front making sure the heat exchanger has been

fully removed. Installation is a reversal of the removal procedure with attention to the following points:

• Clean both surfaces to be re-mated together.


• When re-inserting the burner assembly, ensure that the injectors are inserted into the ring on the top of the burners correctly.

• Ensure that the gas inlet feed-tube is retightened and checked for leaks.

• Ensure that the gas valve loom is not damaged along its length and at the connector.


41

7.9 Flue spigot removal The flue should be fitted to the flue pipe spigot via a bolted flue sleeve connection.

1. Loosen these bolts sufficiently to allow the flue pipe to be removed from the spigot. 2. Ensure that the flue pipe seal exiting the roof is not damaged. 3. Remove the 4 screws holding the flue spigot adaptor to the unit. 4. Remove the flue adaptor plate away from the combustion fan.


• Once reconnected ensure that there are no potential gas leaks from the flue pipe.

• Also ensure that there as no potential water leaks from damaged roof flashing.

Flue pipe coupling


42

7.10 Flue instructions


43

7.11 Main fan assembly removal 15,20 & 30Kw units

1. Turn the unit OFF and isolate the power supply. 2. Remove 4 screws on the side panel which is on the same side of the gas supply inlet. 3. Once the panel has been removed you will notice the fan motor and plate assembly. 4. Remove the motor wiring loom on the connector block. 5. Slide the wiring loom down into the fan compartment. 6. Remove fan motor plate from the fan scroll.

Installation is a reversal of the removal procedure. Motor and plate removal

• Remove the 7 screws that attach motor plate to the fan scroll then remove the motor plate, motor and fan wheel assembly from the fan scroll.

• Remove the fan from the motor by loosening the grub screw from the motor shaft. If the fan wheel is ceased onto the motor shaft then use WD-40 and a puller may be required.

• The motor may be removed from the motor plate if required by removing the bolts and nuts that secure the motor to the motor stator brackets.

Note: For the 25kw you may need to split the unit and rotate the fan compartment.

7.12 Splitting internal model heaters Splitting Compact Classic Heaters The Compact Classic model heaters can be split in half to allow for ease of installation. To split the heater, follow these simple instructions:

• Remove the four screws securing the roof and remove.

• Disconnect the main loom quick-connect plug located on the cabinet centre wall.

• Disconnect spark igniter from the control board and feed back into heat exchanger cabinet

• Remove the two large metric screws above the controls securing the fan cabinet to the heat exchanger cabinet.

• Split the heater by firstly tilting the fan cabinet and pulling away from the heat exchanger cabinet.

• To reassemble conduct the above in reverse order.

Note: Ensure when reassembling the heater that everything is put back and connected correctly.


44

“IMPORTANT NOTICE: This document is a guide only. Laws, regulations and industry standards can vary between States and Territories. Accordingly, this guide must be read in conjunction with, and subject to, all laws, regulations and industry standards applicable in the State or Territory in which the products are installed. You must ensure that the installation of the products will comply with those laws, regulations and standards, and that the products recommended to customers are fit for the purpose for which they are intended.”


45

NOTES:


46

© Brivis Climate Systems Pty. Ltd. 2013.

All rights reserved. No part of these documents may be used in any way or form without prior written consent from Brivis Climate Systems Pty Ltd.

For all your Sales and Service enquiries call us on 1300 BRIVIS (1300 274 847)

Brivis Technical Support 1300 361 295 or [email protected]

www.brivis.com.au

Brivis Australia

61 Malcolm Rd

Braeside Victoria 3195

Australia

1300 BRIVIS (1300 274 847)

Fax: +61 (03) 9264 9400

www.brivis.com.au

email: [email protected]

Brivis New Zealand

Distributor: Warm Air Ltd

69 Marsden Street

Lower Hutt 5010 New Zealand

PO Box 38523

Wellington Mail Centre

Wellington 5043 New Zealand

0800 WARMAIR (0800 9276 247)

Ph: +64 (04) 920 1670

Fax: +64(04) 920 1681

www.warmair.co.nz


Brivis South Africa

Distributor: Lorenz and Associates

Northlands Deco Park

Cnr Witkoppen and Newmarket Roads

North Riding, Johannesburg South Africa 2194

0861 BRIVIS (0861 274 847)

Ph: +27 (011) 704 6112

Fax: +27 (011) 704 0022

www.brivis.co.za


Brivis Service Manual CC3 Gas Ducted Heater Compact Classicbrivis.com.au/marketing/manuals/heating/Manual - Service/407 Issue... · Service Manual 407 Compact Classic Series – 06/11/13

Documents