Lennox GCWB95W-150 Installation Instructions

32
240012994 Rev. B [08/31/2020]
CAUTION
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the re
department.
!!
7 - GAS SUPPLY PIPING
DANGER
Fire Hazard. Do not use matches, candles, open
ames, or other methods providing ignition source.
Failure to comply will result in death or serious injury.
!
WARNING
If overheating occurs or gas supply fails to shut o, do
not turn o or disconnect the electrical supply to the
pump. Shut o gas supply at a location external to the
appliance.
Do not use this boiler if any part has been under water.
Call a qualied service technician before use.
!
WARNING
Fire, explosion, asphyxiation and burn hazard. Boiler
piping and gas connections shall be leak tested before
placing boiler in operation. Failure to follow these
instructions and or improper installation could result in
death or serious injury.
!
NOTICE
Use of CSA approved corrugated, semi-rigid stainless
steel tubing with polyethylene jacketing is approved
for use with boilers following tubing manufacturer's
instructions.
Use of exible "appliance whip" gas tubing is not
allowed per NFPA 54.
NOTICE
If overheating occurs or gas supply fails to shut o, do
not turn o or disconnect electrical supply to pump.
Shut o gas supply at location external to the boiler.
REQUIRED GAS SUPPLY PRESSURE
NATURAL GAS LIQUID PROPANE
Min. Max. Min. Max.
3.5" w.c. 10.5" w.c. 8.0" w.c. 13.0" w.c.
(0.7 kPa) 2.61 (kPa) 1.99 (kPa) 3.23 (kPa)
7.1 General
• Use piping materials and joining methods acceptable
to authority having jurisdiction. In absence of such
requirements:
• USA - National Fuel Gas Code, ANSI Z223.1/NFPA 54
• Canada - Natural Gas and Propane Installation Code,
CAN/CSA B149.1
GAS SUPPLY REQUIRED:
MODEL
NATURAL GAS
(A)
LIQUID PROPANE
(E)
GCWB95W-150
143 ft3/h
(4.00 m
3/h)
61.15 ft
3/h
(1.72 m
3/h)
GCWB95W-205
191 ft3/h
(5.40 m
3/h)
82 ft
3/h
(2.30 m
3/h)
• Boiler shall be isolated from the gas supply piping system
by closing its individual manual shuto valve during
any pressure testing of gas supply piping system at test
pressures equal to or less than 1/2 psi (3.5 kPa).
• Install boiler so that gas ignition system components are
protected from water (dripping, spraying,rain, etc.) during
appliance operation and service (circulator replacement,
condensate trap, control replacement, etc.).
• Gas meter and supply pipes must be capable of delivering
the listed quantity of gas in addition to demand from any
other appliances in the house. Boiler requires a 3/4” (19.5
mm) gas supply pipe.
• Support piping with hooks straps, bands, brackets,
hangers, or building structure components to prevent or
dampen excessive vibrations and prevent strain on gas
connection. Boiler will not support piping weight.
• Use thread (joint) compound (pipe dope) suitable for
liqueed petroleum gas.
• Install external eld sourced manual main gas shuto
valve, ground joint union, and sediment trap upstream of
gas controls.
• Install boiler so gas ignition system components are
protected from water dripping, spraying,rain, etc. During
appliance operation and service.
• Leak test boiler and gas line connections before placing
boiler into operation.
• Install manual main shuto valve before the gas valve
accordance with state and local requirements.
• Size and install gas piping system to provide sucient gas
supply to meet maximum input at not less than minimum
supply pressure.
• Boiler and its individual shuto valve shall be disconnected
from gas supply piping system during any pressure testing
of that system at test pressures in excess of 1/2 psi (3.40
kPa - 34.47 mbar).

Lennox GCWB95W-150 Specifications

General

Brand	Lennox
Model	GCWB95W-150
Category	Boiler
Language	English