Wall opening 5. housing knockouts – GeneralAire Remote Wall Blower User Manual

Page 5

The RMB housing will fit in a stan-
dard 2x6 wall with 1/2” drywall. If
installing in a 2x4 wall then the rear
drywall must also be removed and
the housing will protrude out the back
of the wall. Figure 4.1 below shows
the wall opening dimensions for the
RMB housing.

Notes:
1. The RMB housing has flanges on
the front that must be mounted on
the outside face of the drywall.
2. When installing in new construc-
tion use a piece of return air angle to
mark the wall where the RMB unit will
go to prevent the drywall from being
installed over the location for the
RMB housing.

12 1/8” WIDE

8 1/8”
HIGH

Fig. 4.1

Fig. 5.1

Fig. 5.2

Determine if the steam hose will be
entering the housing from the back
or bottom. Remove the knockouts
for the steam hose, condensate hose
and electrical connections.

4. WALL OPENING

5. HOUSING KNOCKOUTS

ELECTRICAL-
KNOCKOUT

ELECTRICAL KNOCKOUT-

-STEAM
INLET

STEAM INLET-

CONDENSATE KNOCKOUT-