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ManualsBrandsGE ManualsCommercial Air ConditionersGE Zoneline® Cooling and Electric Heat Unit with Makeup Air, 230/208 Volt - AZ45E12DBM

METAL SLEEVE EXTENSION FOR WALLS DEEPER THAN 13-1/8" (11-1/8" WITH SUB-BASE)

Field fabricated – GE Appliances recommends the use of one of the deeper RAB71† wall sleeves offered as special order items.

CAULK*

SPLITTER BETWEEN

AIR INTAKE AND

DISCHARGE

GE Zoneline

units can be installed in walls of greater

depth than the wall sleeve. Where the sleeve recession

is less than 3" and where it is possible to waterproof

the exposed sides and top of the opening, the

suggested procedure is to apply a ﬂashing to the

bottom of the wall sleeve as shown on page 33. Where

waterprooﬁng is questionable or not possible, or for

installations in walls of greater depth, the following

is a suggested application procedure. It involves the

ﬁeld fabrication of a sleeve extension. Since the wall

sleeve is a water - bearing container, the extension

likewise must also be water-bearing and the

connection between the two must be watertight. The

sleeve extension must contain splitters to prevent

recirculation of the outdoor air circuit.

1. The sleeve extension is ﬁeld fabricated. The

extension depth “D” should allow for a minimum

outdoor projection of 1/4". This allows for room

cabinet clearance to the ﬁnished wall and ample

surfaces to apply sealant or caulking for a tight

weather seal between the completed wall sleeve/

extension assembly and the wall opening. It is

recommended that the extension be painted and

corner and lap joints be additionally sealed with

a quality-grade sealant.

2. The wall sleeve and extension should be connected prior

to installation in the wall opening. A quality-grade sealant

should be applied to all four (4)butting ﬂanges. Use bolts

and nuts or oversized self-tapping screws (driven from the

wall sleeve to the extension) to attach the two assemblies.

Clean all drain holes of excess sealant. The assembly must

be free draining.

3. Install ﬂashing, using a quality-grade sealant between the

ﬂashing and wall as shown in section A-A below.

4. Install the wall sleeve/extension assembly following

procedures described for a standard installation. See

diagrams below. The assembly should be sealed or

caulked to the wall around all four sides both outdoors and

indoors.

NOTE: The wall sleeve/extension assembly should be level.

5. Suggested materials for sleeve extension and

ﬂashing should be non-ferrous metals. Minimal

acceptable material: Galvanized G-90 painted.

SEALANT - ALL

FOUR (4) FLANGES

6-1/4" ± 1/4"

AS REQ'D.

CUT DRAIN SLOTS

IN BOTH FLANGES

(FOUR REQUIRED)

TO MATCH DRAIN

HOLES IN RAB71B/77B

FLANGES AND

DRAIN HOLE

LOCATIONS

SAME AS ON

WALL Sleeve

1" WIDE

45° DRIP LIP

FLASHING (FIELD SUPPLIED)

13-3/4" + D"

2" MIN.

10-5/8" ± 1/4"

CAULK*

WALL -

ANY

CONSTRUCTION

RAB71B/77BROOM

CABINET

Sleeve

EXT.

SEE DETAIL

SECTION A-A

*Caulk around perimeter of wall sleeve all four sides

where it joins the building - Interior and Exterior.

EXTENSION

ALL 4 FLANGES

WALL Sleeve

ALL 4

SIDES

WALL

FLASHING

ALL 4

SIDES

SECTION A-A

BASEPAN/FLANGE DESIGN

SHOWING SEALANT LOCATIONS.

1/4" MIN.

RAB71B/77B

WALL Sleeve

1-1/2"

(4 SIDES)

EXTENSION

(FIELD

SUPPLIED)

†WORKS FOR ALL RAB71 OR RAB77 SERIES WALL SLEEVE

WALL SLEEVE INSTALLATION DATA (CONTINUED)