Service Manual
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Table of Contents
1. INTRODUCTION ......................................................................................... 3
2. APPLIANCE DESCRIPTION ...................................................................... 3
2.1 APPLIANCE DESIGNATION ..................................................................................................... 3
2.2 AVAILABLE ACCESSORIES ..................................................................................................... 4
3. INSTALLATION............................................................................................ 5
3.1 APPLIANCE MOUNTING ON THE WALL .................................................................................. 5
3.2 WATER CONNECTIONS ......................................................................................................... 7
3.3 GAS CONNECTION ................................................................................................................ 8
3.4 APPLIANCE PERFORMANCE .................................................................................................. 9
4. COMPONENTS OVERVIEW ................................................................... 10
4.1 CONTROL PANEL FOR USER (INDOOR VERSION) ............................................................... 11
4.2 CONTROL PANEL INBUILT (OUTDOOR VERSION) ............................................................... 17
4.3 CONDENSATE SIPHON ........................................................................................................ 21
4.4 HEAT CELL .......................................................................................................................... 22
4.5 GAS MANIFOLD ................................................................................................................... 23
4.6 FAN ...................................................................................................................................... 27
4.7 GAS VALVE.......................................................................................................................... 28
4.8 HEAT EXCHANGER .............................................................................................................. 29
4.9 WATER VALVE ..................................................................................................................... 30
4.10 CIRCULATION PUMP (L-SERIES ONLY) ............................................................................ 31
4.11 WATER TEMPERATURE SENSORS ................................................................................... 35
4.12 BOX TEMPERATURE SENSOR .......................................................................................... 35
4.13 ELECTRODES ................................................................................................................... 36
5. WORKING PRINCIPLE / ELECTRIC MEASUREMENTS .................... 38
6. AFTER SALES SERVICE ......................................................................... 48
6.1 PCB REPLACEMENT: .............................................................................................. 48
7. MAINTENANCE ......................................................................................... 56
8. TROUBLE SHOOTING ............................................................................. 61
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