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7
INSTALLATION
Proper installation is the responsibility of the
installer.
Product failure due to improper installation is not
covered under the Warranty.
CHASSIS INSTALLATION
Units are shipped without a sleeve. In applications
where un i t is a repl acem en t, it is reco m m end ed t h at a
Carri er sl eev e be used .
Thes e uni t s can ret ro fi t Gen eral E lect ri c, Aman a,
Trane, and Friedrich sleeves/grilles (be sure outdoor
grille is installed on the sleeve). See Table 3 for
details. Carrier Corporation must approve any other
retrofit application.
For competitive retrofit applications, be sure that the
foam s eal s (fact o ry--i n st al l ed o n the t u be sheet s)
provide a good seal between the grille and outdoor
coil t ub e sheet s . Th ese foam seal s prov i de a b arri er to
separate outdoor coil leaving air from mixing with
the outdoor incoming air (known as air
recirculation).
UNIT DAMAGE AND/OR OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
For retrofit applications, foam seals on outdoor coil tube
sheets must make a seal between the coil and the grille or
loss of performance and premature damage to the major
components can result.
CAUTION
!
Table 3—Retrofit W all Sleeves
Manufacturer
Wall Sleeve Part Number
General Electric Metal Sleeve RAB71
Plastic Sleeve RAB77
Amana Metal Sleeve WS900B
Trane Metal Sleeve SLV149
F riedrich T --- S e r i e s M e t a l 1 1
1/2
--- i n . D e e p Wa l l
Sleeve*
Standard Depth Wall Sleeve
16 X 42 X 13
3/4
--- i n . P X W S
* FR---SLEEVE ---EXT accessory is required for retrofit into Friedrich
(T---Series) wall sleeves.
FRONT
PANEL
INDOOR
COIL
BASEPAN
DISCHARGE
GRILLE
WIRE SCREEN
OUTDOOR
ORIFICE
COIL TUBE
SHEETS
INDOOR-AIR
INLET
FILTERS
ACCESSORY
WALL
SLEEVE
ACCESSORY
OUTDOOR
GRILLE
A06752
Fig. 4 – Unit Components
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