Contents
1. INTRODUCTION ..............................................................................................3
2. APPLIANCE DESCRIPTION ............................................................................3
2.1 APPLIANCE DESIGNATION ...................................................................................................... 3
2.2 AVAILABLE ACCESSORIES ..................................................................................................... 3
3. INSTALLATION ................................................................................................5
3.1 APPLIANCE FIXATION ON THE WALL ........................................................................................ 5
3.2 WATER CONNECTIONS ........................................................................................................... 6
3.3 GAS CONNECTION ................................................................................................................. 6
3.4 APPLIANCE PERFORMANCE .................................................................................................... 7
4. COMPONENTS OVERVIEW ............................................................................8
4.1 CONTROL PANEL................................................................................................................... 9
4.2 HEAT CELL WITH BURNER PIPES ........................................................................................... 12
4.3 GAS MANIFOLD ................................................................................................................... 13
4.4 FAN ................................................................................................................................... 14
4.5 GAS VALVE ........................................................................................................................ 14
4.6 HEAT EXCHANGER .............................................................................................................. 16
4.7 WATER INLET ASSY ............................................................................................................ 17
4.8 WATER TEMPERATURE SENSORS ......................................................................................... 18
4.9 BOX TEMPERATURE SENSOR ............................................................................................... 18
4.10 WATER FLOW SENSOR ..................................................................................................... 19
4.11 IGNITION ELECTRODE ....................................................................................................... 20
4.12 IONIZATION ELECTRODE .................................................................................................... 21
5. WORKING PRINCIPLE / ELECTRIC MEASUREMENTS ............................ 22
6. SERVICE ....................................................................................................... 31
7. MAINTENANCE ............................................................................................. 40
8. TROUBLE SHOOTING .................................................................................. 43
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