5.4.2
Alert Codes ............................................................................................................................. 17
PART 6 CONTROL PANEL .................................................................................................................. 18
6.1
TH CONTROLLER .................................................................................................................. 18
6.2
SETTING THE TH CONTROLLER .......................................................................................... 18
6.3
DOMESTIC HOT WATER OPERATION ................................................................................. 18
PART 7 COMPONENTS ...................................................................................................................... 18
7.1
DIRECT SPARK IGNITER ...................................................................................................... 18
7.2
FLAME SENSOR .................................................................................................................... 18
7.3
COMBUSTION AIR FAN ......................................................................................................... 19
7.4
GAS VALVE ............................................................................................................................ 19
7.5
OUTER JACKET ..................................................................................................................... 19
PART 8 TH CONTROL PANEL ............................................................................................................ 20
8.1
INTRODUCTION TO THE TH CONTROL PANEL .................................................................. 20
8.2
USER MODE .......................................................................................................................... 21
8.3
SETUP MODE......................................................................................................................... 22
8.4
DIAGNOSTIC MODE .............................................................................................................. 23
8.5
SETTING THE TANK HEATER HS CONTROLLER ................................................................ 25
PART 9 TROUBLESHOOTING ............................................................................................................ 30
9.1
SETTING THE CORRECT COMBUSTION ............................................................................. 38
9.2
GAS VALVE ADJUSTMENT PROCEDURE ............................................................................ 38
PART 10 MAINTENANCE ...................................................................................................................... 40
10.1
EXAMINE THE VENTING SYSTEM ........................................................................................ 40
10.2
VISUALLY CHECK MAIN BURNER FLAMES ......................................................................... 40
10.3
CLEANING BOILER HEAT EXCHANGER .............................................................................. 41
10.4
CONDENSATE TREATMENT ................................................................................................. 41
10.4.1
Condensate Volume ............................................................................................................... 41
10.5
IGNITER AND FLAME SENSOR ELECTRODES .................................................................... 42
10.6
CHECK IGNITER GROUND WIRING ..................................................................................... 42
10.7
BURNER MAINTENANCE ...................................................................................................... 42
10.7.1
Burner Removal and Cleaning ................................................................................................ 42
10.8
REMOVAL OF COMBUSTION CHAMBER LINING ................................................................ 42
10.9
COMBUSTION AND VENTILATION AIR ................................................................................. 43
10.10
CONTROL CIRCUIT VOLTAGE .............................................................................................. 43
10.11
COMBUSTIBLE MATERIALS .................................................................................................. 43
10.12
FREEZE PROTECTION FOR INDOOR & OUTDOOR INSTALLATIONS ................................ 43
PART 11 INSTALLATIONS .................................................................................................................... 44
11.1
CHECKING THE INSTALLATION ........................................................................................... 44
11.2
CHECKING THE CONSTRUCTION ........................................................................................ 44
11.3
INSPECT & RECHARGE CONDENSATE COLLECTION/NEUTRALIZING RESERVOIR ....... 44
11.4
WATER CONNECTIONS ........................................................................................................ 44
11.5
SUMMARY .............................................................................................................................. 44
11.6
TEMPERATURE RISE AT FULL FIRING RATE ...................................................................... 45
11.7
SETTING THE CORRECT COMBUSTION ............................................................................. 45
11.8
APPLIANCE ............................................................................................................................ 45
11.9
IGNITION CYCLE ................................................................................................................... 46
PART 12 SUGGESTED PIPING DIAGRAMS ........................................................................................ 47
PART 13 EXPLODED VIEW & PARTS LIST .......................................................................................... 48
PART 14 ELECTRICAL DIAGRAMS ...................................................................................................... 52
14.1
TH 82- 502 INTERNALWIRING DIAGRAM ............................................................................. 52
14.2
DETAILED CONNECTOR DESCRIPTION .............................................................................. 53
