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GOLD CGa Gas-Fired Water Boiler — Boiler Manual
8
Part Number 550-101-009/0107
Prepare boiler location — vent system
1c
Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe
personal injury or death.
When removing boiler from an
existing common vent system:
At the time of removal of an existing boiler, the following
steps shall be followed with each appliance remaining
connected to the common venting system placed in op-
eration, while the other appliances remaining connected
to the common venting system are not in operation.
a.
3EALANYUNUSEDOPENINGS in the common venting
system.
b.
6ISUALLYINSPECTTHEVENTINGSYSTEM for proper
size and horizontal pitch and determine there is no
blockage or restriction, leakage, corrosion or other
deficiencies which could cause an unsafe condi-
tion.
c.
4ESTVENTSYSTEM — Insofar as is practical, close all
building doors and windows and all doors between
the space in which the appliances remaining con-
nected to the common venting system are located
and other spaces of the building. Turn on clothes
dryers and any appliance not connected to the com-
mon venting system. Turn on any exhaust fans, such
as range hoods and bathroom exhausts, so they will
OPERATEATMAXIMUMSPEED$ONOTOPERATEASUM-
MEREXHAUSTFAN#LOSElREPLACEDAMPERS
d.
0LACEINOPERATION the appliance being inspected.
Follow the lighting/operating instructions. Adjust
thermostat so appliance will operate continuously.
e.
4ESTFORSPILLAGE at draft hood relief opening after
5 minutes of main burner operation. Use the flame
of a match or candle.
f. After it has been determined that
EACHAPPLIANCE
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers,
and any other gas-burning appliance to their previ-
ous conditions of use.
Any improper operation of common venting system
should be corrected so the installation conforms with
THE.ATIONAL&UEL'AS#ODE!.3):LATESTEDITION
#ORRECTBYRESIZINGTOAPPROACHTHEMINIMUMSIZEAS
determined using the appropriate tables in Part 11 of
THATCODE#ANADIANINSTALLATIONSMUSTCOMPLYWITH
"OR")NSTALLATION#ODE
Chimney or vent require-
ments
6ENTINGMUSTBEINSTALLEDACCORDINGTO0ART6ENT-
INGOF%QUIPMENTOF.ATIONAL&UEL'AS#ODE!.3)
:LATESTEDITIONANDAPPLICABLEBUILDINGCODES
#ANADIANINSTALLATIONSMUSTCOMPLYWITH"OR
")NSTALLATION#ODES
2. See Ratings table on page 67 for minimum chimney
or vent sizes. A chimney or vent
WITHOUTALISTED
CAP
should extend ATLEASTFEETABOVETHEHIGHEST
POINT
where it passes through a roof of a building
and ATLEASTFEETHIGHER than ANYPORTIONOFA
BUILDINGWITHINAHORIZONTALDISTANCEOFFEET
.
A chimney or vent must not extend less than the
distances stated above.
3. A lined chimney is preferred and must be used when
required by local, state, provincial and national
CODESLAWSREGULATIONSANDORDINANCES6ITREOUSTILE
linings with joints that prevent retention of moisture
and linings made of noncorrosive materials are best.
Advice for flue connections and chimney linings can
be obtained from local gas utility.
4YPE" double-
wall metal vent pipe or single-wall vent pipe may
be used as a liner.
#OLDMASONRYCHIMNEYSALSOKNOWNASOUTSIDE
chimneys, typically have one or more walls ex-
posed to outside air. When any atmospheric gas-
fired boiler with automatic vent damper is vented
through this type of chimney, the potential exists for
CONDENSATIONTOOCCUR#ONDENSATIONCANDAMAGE
a masonry chimney. Weil-McLain recommends the
following to prevent possible damage.
a. Line chimney with corrosion-resistant metal
LINERSUCHAS!,#®SINGLEWALLSTAINLESS
STEELOR"VENT3IZELINERPER.ATIONAL&UEL
'AS#ODE!.3):LATESTEDITION
b. Provide drain trap to remove any condensate.
5. Where two or more gas appliances vent into a
common chimney or vent, equivalent area should
be
ATLEASTEQUAL to area of vent outlet on largest
appliance PLUSPERCENT of vent outlet area on
additional appliance.
$ONOTALTERBOILERDRAFTHOODORPLACEANYOBSTRUCTIONORNONAPPROVEDVENTDAMPERINBREECHINGORVENTSYSTEM
#3!CERTIlCATIONWILLBECOMEVOID&LUEGASSPILLAGEANDCARBONMONOXIDEEMISSIONSWILLOCCURCAUSINGSEVERE
personal injury or death.
Inspect existing chimney before installing boiler. Failure to clean or replace perforated pipe or tile lining will cause
severe personal injury or death.