Contents
Contents ........................................................................................................ 2
Owner's Guide
Initial Operation ........................................................................................... 11
Flow Meter Alarm ......................................................................................... 14
Regular Maintenance ................................................................................... 19
Troubleshooting .......................................................................................... 21
Follow-up Service ........................................................................................ 25
Specifications .............................................................................................. 26
External Outfitting ....................................................................................... 27
Hot-Water Feed Route ................................................................................. 31
Electronic Control Unit, Remote Controller and Attached Set ................ 34
Installation Manual ...................................................................................... 35
6. Installation Clearances ......................................................................... 40
7. Installation .............................................................................................. 43
9. Gas Piping .............................................................................................. 47
10. Water Piping ........................................................................................... 49
12. Electrical Wiring .................................................................................... 51
13. Maintenance ........................................................................................... 55
14. Trial Operation ....................................................................................... 55
15. Dimensions and Wiring Diagram ......................................................... 56
16. Multi-System .......................................................................................... 58
Remote Controller Installation Guide ........................................................ 62
2
Main Unit .................................................................................................... 8
Remote Controller .................................................................................... 9