2
Page
CONTENTS
Installation Manual
SPECIFICATIONS ..........................................................................................................................
4
INTRODUCTION ..........................................................................................................................
5
SAFETY GUIDELINES ....................................................................................................................
6
INSTALLATION .............................................................................................................................
7
General.....................................................................................................................................
7
Clearances................................................................................................................................
9
Included accessories................................................................................................................
9
Optional items..........................................................................................................................
9
Warning for installations........................................................................................................
11
High-altitude installations......................................................................................................
12
Venting instructions...............................................................................................................
13
Gas supply and gas pipe sizing...............................................................................................
25
Water connections................................................................................................................
27
Condensate drain..................................................................................................................
28
Electrical connections............................................................................................................
30
Temperature
remote controller............................................................................................
31
Easy-Link System....................................................................................................................
33
Multi-Unit System..................................................................................................................
37
APPLICATIONS............................................................................................................................
38
INITIAL OPERATION...................................................................................................................
40
Owner's Guide
OPERATING SAFETY ..................................................................................................................
42
NORMAL OPERATION ...............................................................................................................
44
Temperature controller and Remote controller.....................................................................
44
General...................................................................................................................................
44
Temperature settings.............................................................................................................
45
Temperature table of controller.............................................................................................
45
Additional features.................................................................................................................
46
Temperature settings on the PCB (Without remote controller)............................................
47
Flow.......................................................................................................................................
48
Freeze protection system.......................................................................................................
48
Maintenance and service.......................................................................................................
49
Unit draining and filter cleaning............................................................................................
49
TROUBLESHOOTING...................................................................................................................
50
General...................................................................................................................................
50
Error codes............................................................................................................................
52
COMPONENTS DIAGRAM...........................................................................................................
55
PARTS LIST.....................................................................................................................................
59
OUTPUT TEMPERATURE CHART..................................................................................................
62
LIMITED WARRANTY..................................................................................................................
63
Contents