Table Of Contents - UTICA BOILERS MGB50 Installation, Operation & Maintenance Manual

Ratings & Data - Natural Gas & Propane Gas ........... 3
Dimensions .........................................................4
Installation Procedure ..........................................5
Ventilation & Combustion Air ................................. 6
Connecting Supply and Return Piping ..................... 7
Vent Installation ................................................ 11
Vent System Modification .................................... 11
Vent Damper Installation & Instructions ................ 12
Connecting Gas Service ...................................... 13
Electrical Section ............................................... 14
Wiring Diagram - 24V Standing Pilot .................... 15
Wiring Diagram - Intermittent Ignition ................. 16
Lighting Instructions .......................................... 17
Normal Sequence of Operation ............................ 19
General Instructions .......................................... 19
Checking Gas Input Rate To Boiler ....................... 21
Replacement Parts ............................................ 22
Safety Symbols & Warnings
The following defined symbols are used throughout this
manual to notify the reader of potential hazards of varying
risk levels.
Indicates a hazardous situation which, if
!
not avoided, WILL result in death or serious
injury.
Indicates a hazardous situation which, if
!
not avoided, could result in death or serious
injury.
Indicates a hazardous situation which, if not
!
avoided, may result in minor or moderate
injury.
Indicates information which should be
followed to ensure proper installation and
operation.
InstallatIon, operatIon and MaIntenance Manual
DANGER
WARNING
CAUTION
NOTICE
KEEP THIS MANUAL NEAR BOILER
RETAIN FOR FUTURE REFERENCE
IMPORTANT: Read the following instructions
COMPLETELY before installing!!
Keep boiler area clear and free from
combustible materials, gasoline and other
flammable vapors and liquids.
DO NOT obstruct air openings to the boiler
room.
Modification, substitution or elimination
of factory equipped, supplied or specified
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 qualified
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.
All installations of boilers and venting should
be done only by a qualified 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
fire or to asphyxiation from poisonous gases
such as carbon monoxide which is odorless
and invisible.
C.S.A. Certified
For Natural Gas Or Propane
2
WARNING
WARNING
H
Tested For 100 psi.
ASME
Working Pressure