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2
Boiler Ratings & Capacities...................... 3
Dimensions ............................................. 4
Installation Procedure ............................. 5
Ventilation & Combustion Air .................. 6
Installation System Piping ...................... 7
Vent Installation ................................... 10
Optional Horizontal Venting Instruction 13
Gas supply Piping .................................. 14
Electrical Wiring .................................... 16
Sequence of Operation .......................... 15
Wiring Diagrams ................................... 18
Starting Your Boiler ............................... 19
Checking and Adjusting ......................... 21
Maintaining Your Boiler ......................... 23
Service Hints ......................................... 24
Equipment & Optional Accessories ........ 25
Appendix A - Control Module ................. 27
A.1 Installation Environment Considerations .27
A.2 Electrical Connections .......................... 27
A.3 Adjusting Settings ............................... 27
A.4 Display .............................................. 27
A.5 Operation .......................................... 28
A.6 Boiler High Limit Temperature Controller 29
A.7 Troubleshooting .................................. 29
A.8 Troubleshooting Error Codes ................. 29
A.9 Intermittent Pilot ................................ 30
TABLE OF CONTENTS
Safety Symbols & Warnings
The following defi ned symbols are used throughout this
manual to notify the reader of potential hazards of varying
risk levels.
NOTICE
Used to address practices not related to personal
injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
!
!
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
!
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in death or serious injury
!
IMPORTANT: Read the following instructions
COMPLETELY before installing!!
KEEP THIS MANUAL NEAR BOILER
RETAIN FOR FUTURE REFERENCE
WARNING
Keep boiler area clear and free from combustible
materials, gasoline and other fl ammable vapors
and liquids.
DO NOT obstruct air openings to boiler room.
Modifi cation, substitution or elimination of factory
equipped, supplied or specifi ed components may
result in personal injury or loss of life.
TO THE OWNER - Installation and service of this
boiler must be performed by a qualifi ed installer.
TO THE INSTALLER - Leave all instructions with
boiler for future reference.
When this product is installed in Commonwealth of
Massachusetts installation must be performed by
Licensed Plumber or Licensed Gas Fitter.
!
WARNING
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in death
or serious injury. Read this manual and understand
all requirements before beginning installation.
!