TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................................ 3
2.0 SPECIFICATIONS .............................................................................................................. 6
3.0 BOILER LOCATION .......................................................................................................... 7
4.0 GENERAL VENTING ....................................................................................................... 10
5.0 VENT/AIR-INLET TERMINATION CLEARANCES ..................................................... 24
6.0 CONDENSATE DRAIN .................................................................................................... 26
7.0 INSTALLING GAS PIPING .............................................................................................. 28
8.0 LIGHTING THE BOILER ................................................................................................. 30
9.0 GAS VALVE AND BURNER SET-UP ............................................................................ 33
10.0 BOILER AND HEATING SYSTEM PIPING ................................................................... 36
11.0 DOMESTIC HOT WATER (DHW) PIPING .................................................................... 52
12.0 FIELD WIRING ................................................................................................................. 55
13.0 CASCADE INSTRUCTIONS ............................................................................................ 58
14.0 WIRING SCHEMATICS ................................................................................................... 61
15.0 INSTALLATION CHECKLIST ........................................................................................ 63
16.0 ANNUAL MAINTENANCE AND INSPECTION ........................................................... 64
17.0 DISPLAY MENU GUIDE ................................................................................................. 66
18.0 TROUBLESHOOTING ..................................................................................................... 79
19.0 PARTS LIST ...................................................................................................................... 82
HAZARD SYMBOLS AND DEFINITIONS
Danger Sign: Indicates a hazardous situation which, if not avoided, will
result in serious injury or death.
Warning Sign: Indicates a hazardous situation which, if not avoided,
could result in serious injury or death.
Caution Sign plus Safety Alert Symbol: Indicates a hazardous situation
which, if not avoided, could result in minor or moderate injury.
Caution Sign without Safety Alert Symbol: Indicates a hazardous
situation which, if not avoided, could result in property damage.
Notice Sign: Indicates a hazardous situation which, if not avoided,
could result in property damage.
This Boiler must be installed by a licensed and trained Heating
Technician or the Warranty is Void. Failure to properly install this
unit may result in property damage, serious injury to occupants, or possibly death.
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