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
Installation Manual ...................................................................................... 37
6. Installation Clearances ......................................................................... 42
7. Installation .............................................................................................. 45
9. Gas Piping .............................................................................................. 49
10. Water Piping ........................................................................................... 51
12. Electrical Wiring .................................................................................... 53
13. Maintenance ........................................................................................... 57
14. Trial Operation ....................................................................................... 57
15. Dimensions and Wiring Diagram ......................................................... 58
16. Multi-System .......................................................................................... 60
Remote Controller Installation Guide ........................................................ 64
2
Main Unit .................................................................................................... 8
Remote Controller .................................................................................... 9