MHSC BUF400 Instructions d'exploitation télécharger pdf (Page 13)

61D1013

BUF Vent-Free Fireboxes









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 replace. Use the

model AK4 combustion air kit.



1. Remove the cover plate from the 4" outlet opening loca-

tion on the left or right outside of the replace.

. Place the insulation ring between the AK-4 starting collar

and replace wall.

3. Place the starting collar (4") into the hole on the side

of replace. Fasten it in place with the four sheet metal

screws provided. Figures 15 and 16

       

       

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



FP1900

OA start collar

8/08

Figure 15 -

Attach Outside Air Starting Collar and Insulation

Ring to Left Side of Fireplace

Insulation

Ring

AK-4 Starting

Collar

Sheet Meal

Screws

Left Side of

Fireplace

Shorter End

of Air Starting

Collar

4. Attach outside duct to starting collar with duct clamp or

screws. Figure 16

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

outside wall covering where the outside vent is to be

located. Figure 17

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

the replace and stick out at least 3" beyond the face of

the wall to which the AK-4 inlet air vent will be attached.

Cut duct with a standard pocket knife. Figure 16

FP2700

OA duct

Screws

Air Starting

Collar

Duct

Left Side of

Fireplace

FP700

Figure 16 -

Attach Outside Duct to Starting Collar

FP1904

AK4 install

8/08

Diameter

Hole

Duct

Extending

3" Min.

Screws

Nail

Hole

Screws

AK-4 Inlet

Air Vent

Figure 17 -

Combustion Air Assembly for Model

AK-4

FP1904



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



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



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MHSC BUF400 Instructions d'exploitation Page 13

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