8.2 CHECKING THE CONSTRUCTION ............................................................................................................ 49
8.3 FIRE TESTING ........................................................................................................................................ 49
8.4 COMISSIONING APPLIANCE ................................................................................................................... 52
PART 9 TROUBLE SHOOTING ............................................................................................................................. 53
PART 10 MAINTENANCE ..................................................................................................................................... 60
10.1 EXAMINE THE VENTING SYSTEM ........................................................................................................... 60
10.2 VISUALLY CHECK MAIN BURNER FLAMES .............................................................................................. 60
10.3 FLUE GAS PASSAGEWAYS CLEANING PROCEDURES ............................................................................... 60
10.4 CONDENSATION TREATMENT ............................................................................................................... 60
10.4.1 CONDENSATE VOLUME ......................................................................................................................... 60
10.5 BURNER MAINTENANCE ........................................................................................................................ 61
10.5.1 BURNER REMOVAL AND CLEANING ....................................................................................................... 61
10.5.2 BURNER CLEANING PROCEDURE ........................................................................................................... 61
10.6 CHANGING THE HOT SURFACE IGNITER ................................................................................................. 61
10.6.1 RE-INSTALLING THE IGNITER ................................................................................................................. 62
10.7 PRIMARY HEAT EXCHANGER INSPECTION .............................................................................................. 62
10.8 CONDENSING HEAT RECOVERY MODULE (CHRM) INSPECTION .............................................................. 62
10.9 RE-INSTALL HEAT EXCHANGERS............................................................................................................. 62
10.10 COMBUSTION AIR FAN .......................................................................................................................... 62
10.11 COMBUSTION AND VENTILATION AIR ................................................................................................... 62
10.12 CONTROL CIRCUIT VOLTAGE ................................................................................................................. 62
10.13 COMBUSTIBLE MATERIALS .................................................................................................................... 62
10.14 FREEZE PROTECTION ............................................................................................................................. 62
10.15 FREEZE PROTECTION FOR A HEATING BOILER SYSTEM (Optional) ......................................................... 63
PART 11 INSTALLATIONS ..................................................................................................................................... 63
11.1 HEATING BOILER INSTALLATIONS .......................................................................................................... 63
11.2 WATER CONNECTIONS .......................................................................................................................... 63
11.3 PIPING LENGTHS ................................................................................................................................... 63
11.4 INTERMITTENT PUMP OPERATION ........................................................................................................ 64
11.5 SUMMARY ............................................................................................................................................ 64
11.6 DOMESTIC HOT WATER HEATER............................................................................................................ 64
11.7 WATER VELOCITY CONTROL .................................................................................................................. 64
11.8 TEMPERATURE RISE AT FULL FIRING RATE ............................................................................................. 65
11.9 WATER HEATERS ................................................................................................................................... 65
PART 12 EXPLODED VIEW ................................................................................................................................... 66
PART 13 ELECTRICAL DIAGRAMS ......................................................................................................................... 77
WARRANTY ........................................................................................................................................................... 83
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