Best EB12 Installationsanleitung

3

1. Locate the blower on the rear slope of

the roof. Place it in a location to minimize

duct run. The location should be free of

obstacles (T.V. leads, electrical lines,

etc.). If the blower top is level with the

roof peak, it will not be seen from the

street. Keep this approximate location in

mind as you work from within the attic.

2. Mark and drill a guide hole centered

between roof rafters.

3. From the outside, use the guide hole as

a starting point to lay out the installation:

A. Use a T-square to measure 9

13

/

16

" to the

left of the guide hole, then up 12

11

/

16

" to

locate the top-left corner of the layout.

B. Starting from the top-left corner, mark

the rectangular cutout (18" W x 20½" H)

and  remove only the shingles in this

area.

C. Mark an 11" diameter hole centered on

the guide hole. Cut this hole through the

roof board(s).

D. Mark and cut a 1¼" diameter hole

through

the roof

board(s)

w h e r e

shown.

4. For flat

roof in-

s t a l l a -

t i o n s ,

build a

curb that

w i l l

mount the blower at a minimum pitch of

2/12. Discharge end of the blower should

be pointed downward.

1. Choose a position on the outside wall.

Make sure that no wall studs, pipes or

wires run through the opening area.

2. From inside, mark and drill a guide hole

centered between wall studs.

3. From the outside, use the guide hole as

a starting point to lay out the installa-

tion:

A. Use a T-square to measure 11

13

/

16

"

to the left of the guide hole, then up

14

11

/

16

" to locate the top-left corner

of the layout.

B. Starting from the top-left corner,

mark the rectangular cutout (22" W

x 29½" H) and remove only the

siding in this area.

C. Mark an 11" diameter hole cen-

tered on the guide hole. Cut this

hole through the roof board(s).

D. Mark and cut a 1¼" diameter hole

through the roof board(s) where

shown.