Installation Instructions

2
CONTENTS
Installation Manual
SPECIFICATIONS..........................................................................................................4
INTRODUCTIONS..........................................................................................................5
SAFETY GUIDELINES...................................................................................................6
INSTALLATION...............................................................................................................7
General................................................................................................................7
Clearances...........................................................................................................9
Included accessories............................................................................................9
High-altitude installations....................................................................................10
Venting instructions.............................................................................................11
Gas supply and gas pipe sizing..........................................................................21
Water connections..............................................................................................23
Condensate drain...............................................................................................25
Electrical connections.........................................................................................26
APPLICATIONS..................................................................................................27
INITIAL OPERATION..........................................................................................29
OWNER’S GUIDE
OPERATING SAFETY...................................................................................................31
NORMAL OPERATION.................................................................................................33
Temperature controller and Remote controller...................................................33
General..............................................................................................................33
Temperature Settings.........................................................................................34
Temperate table of controller..............................................................................34
Additional features..............................................................................................35
Temperature setting on the PCB (without remote controller).............................36
Flow....................................................................................................................37
Freeze protection system...................................................................................37
Maintenance and service...................................................................................38
Unit draining and lter cleaning..........................................................................38
TROUBLESHOOTING..................................................................................................39
General...............................................................................................................39
Error codes.........................................................................................................41
COMPONENTS DIAGRAM...........................................................................................44
PARTS LIST...................................................................................................................48
OUTPUT TEMPERATURE CHART...............................................................................50