Service manual

March 2010
WHC56
Service Manual
•
This manual must be read by Service personnel re-
pairing the above appliance models.
•
Ta ke this manual with you when attending Service study
meetings.
•
The specifications and contents of this manual may
change at any time without prior notification.
Never short-circuit any safety devices
CONTENTS
Overview of Condensing Gas Water Heater ............................................................... 2
Structural Cross-section of Operation Unit................................................................. 3
Principle of Operation................................................................................................. 4
Operation Panel, Remote Control .............................................................................. 6
Initital Operation ......................................................................................................... 7
Setting Hot Water Temperature .................................................................................. 8
Sequence ................................................................................................................. 10
Wiring Diagram and Inspection Flowchart ............................................................... 12
Checkpoints and Measures if a Breakdown Occurs................................................. 14
Maintenance............................................................................................................. 25
Installation ................................................................................................................ 37
Specifications ........................................................................................................... 39
Dimensions .............................................................................................................. 40
KS-09-0003