GE PVB67 用户手册

Place the downdraft vent into the countertop  

cutout, against the back side.

• The downdraft blower system is designed for use 

with 3-1/4" x 10" ductwork. It can be transitioned 

to 6" round.

• Ductwork MUST be vented to the outside—never  

in a crawl space, attic or other enclosed space.

• 6" PVC duct should be used when installing under 

a concrete slab.

NoTe: Local building code must be followed 

for installation in specifying approved type and 

schedule of PVC duct used.

• Locate the brackets and attachment screws.  

On some models, the attachment screws may  

be placed on the control box in position A or B.

• Fasten one bracket to each side rail, position A 

and B, and secure to the cabinet back wall.

• DO NOT USE flexible plastic ducting.
• Always use appropriate roof or wall cap with 

damper. Laundry-type wall caps should never  

be used.

• Use the straightest duct run possible.
• For satisfactory performance, the duct run should  

not exceed 150 ft. or its equivalent length when 

bends or various fittings are used. Refer to the 

table of equivalent lengths to calculate your 

installation.

• Install ductwork so the piece of duct nearest the 

downdraft unit slots INTO the next piece of the 

duct. Secure the joints with self-tapping screws 

and apply duct tape around the joints to ensure 

an airtight seal.

Duct Tape

Over Seam and Screw

Screw

Air

Flow

A

B

• Locate the brackets and attachment screws.  

On some models, the attachment screws may  

be placed on the control box in position A or B.

• Use location C on the  

control box instead  

of location A for left  

discharge orientation  

of the blower.

• When installing in  

a tile countertop  

surface, it may be  

necessary to apply  

a locally approved caulking to cover any gaps.

C

B

Support  

Bracket

A

C

Support  

Bracket

Support  

Bracket

Support  

Bracket

Top View of  

Support Bracket

Top View of  

Support Bracket