LG AR-DR12-05A Installation And Operation Manual page 76

INDIRECT GAS FIRED FURNACES
Concentric Venting Installation
Determine Venting Location
Determine the location of the concentric venting adapter (CVA) based on any clearances that must be maintained (follow all applicable
codes).
Attach Mounting Brackets
Attach field-supplied, corrosion-resistant, mounting brackets to the CVA using corrosion-resistant sheet metal screws.
Install Exhaust Pipe
Attach a field-supplied exhaust air pipe to the concentric side of the CVA. Provide enough exhaust piping to pass through the wall (or floor)
and provide the minimum clearance of 12 inches between the exhaust pipe termination and the combustion air intake. With all required clear-
ances satisfied, attach the exhaust pipe to the CVA.
Install Combustion Air Pipe
Attach a field-supplied combustion air pipe to the concentric side of the CVA.
Be sure to provide enough combustion air piping to pass through the wall and provide the minimum clearance of 2 inches between the com-
bustion air intake and the exterior surface of the outside wall.
Install CVA Assembly
Place the CVA assembly through the wall and verify that all minimum clearance requirements as specified in these instructions are met.
Secure the CVA assembly to the wall with corrosion-resistant sheet metal screws through the mounting brackets.
Attach CVA Assembly to Unit
Connect the unit's combustion exhaust to the exhaust connection on the CVA. Connect the unit's combustion air supply intake to the com-
bustion air connection on the CVA.
Install Combustion Air Inlet Guard and Exhaust Vent Terminal
Slide the combustion air inlet guard over the exhaust pipe and fasten it to the combustion air pipe. Attach the exhaust vent terminal to the
discharge end of the exhaust piping.
Seal Opening
Seal the opening between the wall and the air intake pipe using an appropriate method.
Due to our policy of continuous product innovation, some specifications may change without notification.
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