MHSC BUF400 Instructions d'exploitation télécharger pdf (Page 17)

61D1013 17



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 fireplace. Use the model AK4 combustion air kit.



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

or right outside of the fireplace.

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 fireplace. Fasten it in place with the four sheet metal

screws provided. SeeFigures18and19.

 



4. Attach outside duct to starting collar with duct clamp or screws. SeeFigure19.

















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20.

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

to the fireplace 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19.





Nail

Holes











6" Diameter

Hole

Duct

Extending

3"min.

AK-4 Inlet

Air Vent

Screw

Screws

Continued

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MHSC BUF400 Instructions d'exploitation Page 17

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