Monessen Hearth DESIGNER SERIES manual Combustion Air Assembly, MODEL AK4 COMBUSTION AIR ASSEMBLY

COMBUSTION AIR ASSEMBLY 16

MODEL AK4 COMBUSTION AIR ASSEMBLY

1.Remove the cover plate from the 4-inch outlet opening location on the left outside of the fireplace. DO NOT remove the cover if the outside air will not be connected.

2.Place the starting collar (4 inch) into the hole on the left side of the fireplace. Fasten it in place with the four sheet metal screws provided.

3.Cut a 6-inch diameter opening for model AK4 in the outside wall covering where the outside vent is to be located.

4.Select and cut a piece of duct sufficient length to attach to the fireplace and protrude at least three inches beyond the face of the wall to which the inlet air vent will be attached. The duct may be cut with a standard pocket knife (use FP-4 U duct for maximum efficiency and safety). Do not use a combustible duct. Always use UL Listed Class 0 or 1 duct material. If it is necessary to splice the duct, a Model 403 duct connector should be used to splice duct sections.

5.If the duct is the insulated type, push the insulation back from one end of the duct approximately two inches.

6.Slip the exposed end of the duct over the starting collar on the fireplace.

7.Using the sheet metal screws or duct clamps, secure the duct to the starting collar and to the outside vent.

8.Nail or screw the outside vent to the surface of the wall.

SCREWS

6" DIA. HOLE FOR OAC4

INSERT SHORTEST SIDE OF

THE TUBE THROUGH THE

FIREPLACE OUTER WRAP.

LONGER LENGTH OF THE TUBE

TO OUTSIDE.

STEP 1: SECURE OUTSIDE AIR STARTING

COLLAR TO LEFT SIDE OF FIREPLACE WITH

FOUR SHEET METAL SCREWS PROVIDED.

NAIL

HOLES

STEP 2: SECURE OUTSIDE DUCT TO STARTING COLLAR WITH DUCT CLAMP OR SCREWS.

53D9019. Rev 3 11/07