Справочник Пользователя для Monessen Hearth MCUF42D SERIES

26D4720

USING OPTIONAL AK-4 OUTSIDE AIR KIT

The use of outside air for combustion is optional unless required by building codes. It is only necessary to supply outside
combustion air to one side of the fi replace. Use the model AK4 combustion air kit.

MODEL AK-4 COMBUSTION AIR ASSEMBLY

1. Remove the cover plate from the 4" outlet opening location on the left or

right outside of the fi replace.

2. Place the insulation ring between the AK-4 starting collar and fire-

place wall.

3. Place the starting collar (4") into the hole on the side of fi replace. Fasten it in place with the four sheet metal screws

provided. See Figures 21 and 22.

Note: The air starting collar extends through the fi replace outer wrap. When the air starting collar is
securely attached, it will form a seal against the fi replace wall.

4. Attach outside duct to starting collar with duct clamp or screws. See Figure 22.

DO NOT remove the
cover if the outside air
will not be connected.

ARNING

Figure 21 - Attaching Outside Air Starting Collar

and Insulation Ring to Left Side of Fireplace

Figure 22- Attaching Outside Duct

to Starting Collar

Insulation Ring

AK-4 Starting

Collar

Sheet

Meal

Screws

Left Side of

Fireplace

Shorter End

of Air Starting

Collar

Air Starting

Collar

Duct

Screws

Left Side of

Fireplace

5. Cut a 6-inch diameter opening for model AK-4 in the outside

wall covering where the outside vent is to be located. See
Figure 23.

6. Select and cut a piece of duct long enough to attach to the

fi replace and stick out at least 3" beyond the face of the wall
to which the AK-4 inlet air vent will be attached. See Figure
22.

Figure 23 - Combustion Air Assembly for

Model No. AK-4

Nail

Holes

Use FP-4 U duct for maximum effi ciency
and safety. Do not use a combustible
duct. Always use UL Listed Class 0 or
1 duct material.

ARNING

6" Diameter

Hole

Duct

Extending

3"min.

AK-4 Inlet

Air Vent

Screw

Screws

Continued