Weil-McLain CGA25SPDN 1c Prepare boiler location vent system, Chimney or vent require- ments

GOLD CGa Gas-Fired Water Boiler — Boiler Manual

1c Prepare boiler location — vent system

Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe 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.

$O NOTOALTERTBOILER DRAFTAHOOD OR PLACEAANYNOBSTRUCTIONUOR NONAPPROVEDRVENT DAMPER IN BREECHINGCOR VENT SYSTEMT #3!3CERTIlCATION WILL BECOME VOIDI&LUE GASASPILLAGE ANDNCARBON MONOXIDE EMISSIONSSWILL OCCURCCAUSINGSSEVERE 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.3EAL ANYYUNUSED OPENINGS in the common venting system.

b.6ISUALLYYINSPECTPTHEHVENTINGTSYSTEM 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.4ESTSVENT SYSTEM — 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

OPERATERAT MAXIMUMISPEED $O NOTOOPERATERAASUM- MEREEXHAUSTXFAN #LOSE lREPLACEDAMPERS

d.0LACEAIN OPERATION the appliance being inspected. Follow the lighting/operating instructions. Adjust thermostat so appliance will operate continuously.

e.4ESTSFOR SPILLAGE 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 EACHHAPPLIANCE 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 THEH.ATIONAL &UEL 'ASA#ODED!.3) :LATESTEDITION

#ORRECTRBY RESIZING TO APPROACH THEHMINIMUMISIZE AS determined using the appropriate tables in Part 11 of

THAT CODED#ANADIAN INSTALLATIONS MUST COMPLY WITH " OR" )NSTALLATION#ODE

8

Chimney or vent require- ments

 6ENTINGTMUST BE INSTALLEDAACCORDINGRTO 0ART  6ENT- INGNOF %QUIPMENT OF .ATIONAL &UEL 'ASA#ODED!.3)

:LATEST EDITIONTANDNAPPLICABLE BUILDING CODES #ANADIAN INSTALLATIONSLMUST COMPLY WITH " OR " )NSTALLATIONS#ODES

2.See Ratings table on page 67 for minimum chimney or vent sizes. A chimney or vent WITHOUTHAALISTED CAP should extend AT LEASTAFEETEABOVE THEHHIGHEST POINT where it passes through a roof of a building and AT LEASTAFEETEHIGHER than ANYYPORTION OF AA BUILDINGDWITHIN AAHORIZONTAL DISTANCE OF  FEET. 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

CODES LAWSWREGULATIONSAANDNORDINANCESA6ITREOUS TILE 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. 4YPEP" double- wall metal vent pipe or single-wall vent pipe may be used as a liner.

 #OLD MASONRYOCHIMNEYSNALSO KNOWNOAS OUTSIDE 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

CONDENSATION TO OCCUR #ONDENSATION CANADAMAGE a masonry chimney. Weil-McLain recommends the following to prevent possible damage.

a.Line chimney with corrosion-resistant metal

LINERNSUCH ASS!,#® SINGLEWALL STAINLESS STEELEOR "VENT 3IZELINERNPER.ATIONAL &UELL 'ASA#ODE !.3)D:LATEST EDITION

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 AT LEASTAEQUAL to area of vent outlet on largest appliance PLUS  PERCENT of vent outlet area on additional appliance.

Part Number 550-101-009/0107