Lochinvar TTW Series Installation, Commissioning And Maintenance Instructions page 5

19.1 GENERAL............................................................................................................................................................................................. 89
19.2 FIRING FOR THE FIRST TIME ........................................................................................................................................................... 90
20.0 ADJUSTING AND SETTING THE BURNERS ........................................................................................................................................ 91
20.1 INTRODUCTION .................................................................................................................................................................................. 91
20.1.1 ADJUSTMENT TABLES .................................................................................................................................................................. 91
20.1.2 ADJUSTMENT VALUES .................................................................................................................................................................. 91
20.1.3 PRE ADJUSTMENT SETTINGS FOR GAS VALVES ..................................................................................................................... 93
20.1.4 GAS VALVE SETTING SCREWS: DRAWING ................................................................................................................................ 93
20.1.5 HOW TO REMOVE AND MOUNT THE FLUE PLUG: .................................................................................................................... 94
20.1.6 ADJUSTMENT ACTIONS: GENERAL SCHEME ............................................................................................................................ 95
20.1.7 NOTE: CO MEASURING POSITION.............................................................................................................................................. 96
2
20.2 ADJUSTING IN CASE OF A NEW WATER HEATER, OR AFTER MAINTENANCE (CASE A) ........................................................ 96
20.2.1 GENERAL REMARK ........................................................................................................................................................................ 96
20.2.2 CHECKING AND ADJUSTING THE TOP BURNER ....................................................................................................................... 96
20.2.3 CHECKING AND ADJUSTING THE BOTTOM BURNER ............................................................................................................... 97
20.2.4 CHECKING BOTH BURNERS ......................................................................................................................................................... 97
20.3 ADJUSTING AFTER GAS VALVE REPLACEMENT OR IN CASE OF GAS CONVERSION (CASE B) ........................................... 98
20.3.1 GENERAL REMARKS ..................................................................................................................................................................... 98
20.3.2 CASE B ADJUSTMENTS ................................................................................................................................................................. 98
21.0 PUTTING THE WATER HEATER OUT OF OPERATION ...................................................................................................................... 99
22.0 FAULT CODES, BLOCKING CODES................................................................................................................................................... 100
22.1 FAULT CODES .................................................................................................................................................................................. 100
22.1.1 LOCK-OUT CODES: ...................................................................................................................................................................... 100
22.1.2 BLOCKING CODES ....................................................................................................................................................................... 108
22.1.3 MAINTENANCE ATTENTION MESSAGE ..................................................................................................................................... 112
23.0 MAINTENANCE ..................................................................................................................................................................................... 113
23.1 GENERAL........................................................................................................................................................................................... 113
23.2 MAINTENANCE REMINDER FUNCTION. ........................................................................................................................................ 113
23.3 SERVICE INTERVALS ....................................................................................................................................................................... 113
23.4 INSPECTION & MAINTENANCE ....................................................................................................................................................... 113
23.4.1 CUSTOMER COMMENTS ............................................................................................................................................................. 113
23.4.2 SERVICE HISTORY ....................................................................................................................................................................... 113
23.4.3 FLUE GAS & AIR SUPPLY ............................................................................................................................................................ 114
23.4.4 GAS SUPPLY & SAFETIES ........................................................................................................................................................... 114
23.4.5 REMOVE THE BURNER UNIT ...................................................................................................................................................... 114
23.4.6 BURNER......................................................................................................................................................................................... 114
23.4.7 IGNITION / IONISATION ELECTRODE ........................................................................................................................................ 114
23.4.8 BURNER DOOR GASKETS .......................................................................................................................................................... 114
23.5 MOUNTING THE BURNER DOOR CORRECTLY BACK ONTO THE HEAT EXCHANGER: ......................................................... 114
23.5.1 NON RETURN VALVE ................................................................................................................................................................... 115
23.5.2 FAN ................................................................................................................................................................................................. 115
23.5.3 INSULATION .................................................................................................................................................................................. 115
23.5.4 SIPHON .......................................................................................................................................................................................... 115
23.5.5 HEAT EXCHANGER AND BURNER ROOM ................................................................................................................................. 116
23.5.6 GAS/AIR RATIO ............................................................................................................................................................................. 116
23.5.7 PUMP ............................................................................................................................................................................................. 116
24.0 ErP DATA TABLE ................................................................................................................................................................................. 116
25.0 USER INSTRUCTIONS ......................................................................................................................................................................... 116
26.0 WARRANTY ........................................................................................................................................................................................... 116
5