Bosch GWH 425 PN User Manual

13

AQ4 Manual

NOTE: HARDWARE SHOWN INCLUDED
             WITH VENT HOOD

BUILDING 
EXTERIOR

WASHER (4)

SHEET METAL SCREW (4)

PILOT 
HOLE

PILOT 
HOLE

CUT HOLE THROUGH WALL

TEMPLATE

WHEN INSTALLING THE VENT HOOD FOLLOW THE BACK DRAFT FLAPPER 
INSTRUCTION SHEET IF OUTDOOR TEMPERATURES MAY DROP BELOW FREEZING

Fig. 14 Vent hood mounting template

Vent hood template

1. Use scis sors to detach template.  Verify external vent hood installation clearances on page 5 (Fig. 1) are adhered to.  Attach

the vent hood mounting template to the interior of the wall the vent hood will be penetrating.

2. Verify that wall penetration will not come in contact with concealed wiring or plumbing. Using a 1/2” drill bit, drill two pilot

holes where noted on the template.  The drill bit must be long enough to pene trate to the building exterior.

3. Attach the template to the building exterior aligning the pilot holes on t he template with the pilot holes drilled in step 2.

4. Using a reciprocating saw, cut an opening through the building siding, wall board, etc., following the lines of the template.
5. Slide the vent hood through the opening and fasten to exterior wall using provided screws.

6. Once power venter is completely installed and secured, apply a bead of exterior rated caulk between vent hood flange and

exterior of building.