Desa C42EC2 Gas Line, Test For Gas Leaks, Hearth Extension, Damper Operation

Models: C42EC2

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GAS LINE

GAS LINE

A gas line may be installed for the purpose of installing a decorative gas appliance available through your local distributor. Use only 1/2" black iron pipe and appropriate fittings. When installing a gas line, a shut-off valve designed for installation outside the firebox is recommended.

To install, remove the gas line plug located in the side firebrick approximately 2" above the bottom, The plug must be tapped out from the finished side towards the unfinished side (see Figure 11A).

OUTSIDE OF

SIDE FIREBRICK

FINISHED SIDE

FIREPLACE

 

GAS LINE

CONDUITREMOVE KNOCKOUT

REMOVE INSULATION TEMPORARILY (DO NOT DISCARD)

REMOVE

 

REFRACTORY

GAS CONDUIT

AFTER REMOVING

KNOCKOUT PLUG

COVER

REMOVE BY TAPPING

GAS LINE COVER

 

LIGHTLY WITH A

 

PLATE, REPLACE

 

1/2" DOWEL

 

SCREWS

 

 

Figure 11A

Insert the gas line parallel to the face. Fill any gap between the gas line and the hole in the firebrick with refractory cement or commer- cial furnace cement (see Figure 11B).

OUTSIDE OF

 

 

FIREPLACE

 

SIDE FIREBRICK

 

 

 

 

FINISHED SIDE

 

INCOMING

 

GAS LINE

1/2" BLACK

PROVIDE ENOUGH

IRON PIPE

CONDUIT

THREADED END

 

 

 

FOR FITTING

 

 

CONNECTION

REPACK

INSULATION

SEAL OPENING

WITH REFRACTORY

CEMENT

Figure 11B

TEST FOR GAS LEAKS

WARNING: All gas piping and connections must be tested for leaks after the installation is completed. Be sure gas valve is turned on. Apply soap suds solution to all connections and joints. If bubbles appear, leaks must be detected and corrected. DO NOT use a match or open flame of any kind to test leaks. Never operate any appliance with leaky connections.

The gas pipe is intended for connection to an unvented gas log set or to a decorative gas appliance.

If you will install an unvented gas log set, ONLY VENTED GAS LOG SETS WHICH HAVE BEEN FOUND TO COMPLY WITH THE STANDARD FOR UNVENTED ROOM HEATERS, ANS/IAS/AGA Z21.11.2, ARE TO BE INSTALLED IN THIS FIREPLACE.

Note: An appropriate Comfort Glow hood must be installed when using an unvented gas log set.

WARNING: Do not operate an unvented gas log set in this fireplace with the chimney removed.

If you will install a decorative gas appliance, the decorative gas appliance must comply with the Standard for Decorative Gas

Appliances for Installation in solid Fuel burning Fireplaces, ANS Z21.60-1996 and shall also be installed in accordance with the

National Fuel Gas code, ANS Z223.1-1996.

WARNING: When using a decorative appliance, the damper must be removed or permanently locked in the fully open position.

HEARTH EXTENSION

A hearth extension projecting a minimum of 20" in front of and a minimum of 12" beyond each side of the fireplace opening is required to protect combustible floor construction in front of the fireplace, Use a layer of noncombustible, inorganic material having a thermal conductivity of K=0.64 BTU IN/FT. HR. F (or less) at 1" thick. Example of determining hearth extension equivalent. If the material selected has a K factor of 0.25, such as glass fiber, then the following formula would apply: 0.25/0.64 X 1" = .39" thick. This must be covered by a noncombustible material such as tile, slate, brick, concrete, metal, glass, marble, stone, etc. Fasten the hearth extension to the floor to prevent shifting and seal the gap between the fireplace frame and hearth extension with a noncombustible material (see Figure 12).

WARNING: Hearth extension is to be installed only as illustrated.

HEARTH

EXTENSIONS

STANDARD

SEAL GAP

HEARTH

 

EMBER PROTECTOR

RAISED

NO HEARTH

DO NOT BLOCK

INTAKE GRILL

ELEVATED

 

FIREPLACE

SEAL GAP

EMBER PROTECTOR

Figure 12

DAMPER OPERATION

The damper handle to open and close the damper blade is located inside the firebox at the center towards the back wall. Pushing the handle back into the keyway slot will free the damper blade to automatically open. To close, reach in and push the handle back into the keyhole slot then pull down and forward to lock it in place (see Figure 13).

DAMPER

WEIGHT

TO CLOSE

TO OPEN

DAMPER

DAMPER

Figure 13

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Desa C42EC2 Gas Line, Test For Gas Leaks, Hearth Extension, Damper Operation, National Fuel Gas code, ANS Z223.1-1996