2
IMPORTANT: Read the following instructions
COMPLETELY before installing!!
C.S.A. Certifi ed
For Natural Gas Or Propane
Tested For 100 psi.
ASME
Working Pressure
H
Safety Symbols & Warnings
Th
e following defi ned symbols are used throughout this manual to
notify the reader of potential hazards of varying risk levels.
Ratings & Data - Natural Gas & Propane Gas ...........3
Dimensions .........................................................4
Installation Procedure ..........................................5
Ventilation & Combustion Air .................................6
Connecting Supply and Return Piping .....................7
Connecting Supply and Return Piping .....................8
Vent Installation ................................................ 12
Vent System Modifi cation .................................... 12
Vent Damper Installation & Instructions ................ 13
Connecting Gas Service ...................................... 14
Electrical Section ............................................... 15
Wiring Diagram - 24V Standing Pilot .................... 16
Wiring Diagram - Intermittent Ignition ................. 17
Lighting Instructions .......................................... 18
Normal Sequence of Operation ............................ 20
General Instructions .......................................... 20
Checking Gas Input Rate To Boiler ....................... 22
Replacement Parts - Base ................................... 23
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
!
DANGER
Indicates a hazardous situation which, if
not avoided, WILL result in death or serious
injury.
!
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or serious
injury.
!
CAUTION
Indicates a hazardous situation which, if not
avoided, may result in minor or moderate
injury.
NOTICE
Indicates information which should be
followed to ensure proper installation and
operation.
!
WARNING
Keep boiler area clear and free from
combustible materials, gasoline and other
fl ammable vapors and liquids.
DO NOT obstruct air openings to the boiler
room.
Modifi cation, substitution or elimination
of factory equipped, supplied or specifi ed
components may result in property damage,
personal injury or the 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 the boiler for future reference.
When this product is installed in the
Commonwealth of Massachusetts the
installation must be performed by a Licensed
Plumber or Licensed Gas Fitter.
!
WARNING
All installations of boilers and venting should
be done only by a qualifi ed expert and in
accordance with the appropriate manual.
Installing or venting a boiler or any other gas
appliance with improper methods or materials
may result in serious injury or death due to
fi re or to asphyxiation from poisonous gases
such as carbon monoxide which is odorless
and invisible.
KEEP THIS MANUAL NEAR BOILER
RETAIN FOR FUTURE REFERENCE
