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5
INSTALLATION
CHASSIS INSTALLATION
Units are shipped without a sleeve. In applications
where unit is a replacement, it is recommended that a
Carrier sleeve and grille be used.
The 52C and 52P units can retrofit General Electric,
Amana, 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 seals (factory-installed on the tube sheets) pro-
vide a good seal between the outdoor grille and out-
door coil tube sheets. These foam seals provide a
barrier to separate outdoor coil leaving air from mix-
ing with the outdoor incoming air (known as air recir-
culation).
See Figure 5.
TABLE 3 — RETROFIT WALL SLEEVES
*FR-SLEEVE-EXT accessory is required for retrofit into Friedrich
(T-Series) wall sleeves.
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.
MANUFACTURER WALL SLEEVE PART NUMBER
General Electric Metal Sleeve RAB71
Plastic Sleeve RAB77
Amana Metal Sleeve WS900B
Trane Metal Sleeve SLV149
Friedrich T-Series Metal 11
1
/
2
-in. deep wall sleeve*
Standard depth wall sleeve 16 x 42 x 13
3
/
4
-in.
PXWS
OUTDOOR
ORIFICE
COIL TUBE
SHEETS
DISCHARGE
GRILLE
WIRE SCREEN
FRONT
PANEL
INDOOR
COIL
BASEPAN
WALL
SLEEVE
OUTDOOR
GRILLE
INDOOR-AIR
INLET
FILTERS
1
.P
R
E
S
S
R
E
S
E
T
B
U
T
T
O
N
.
2
.P
L
U
G
IN
T
O
P
O
W
E
R
R
E
C
E
P
T
A
C
L
E
.
3
.P
R
E
S
S
T
E
S
T
B
U
T
T
O
N
U
N
IT
S
H
O
U
L
D
L
IG
H
T.
4
.
P
R
E
S
S
R
E
S
E
T
B
U
T
T
O
N
A
G
A
IN
F
O
R
U
S
E
.
T
E
S
T
IN
G
D
O
N
O
T
U
S
E
I
S
T
E
S
T
A
B
O
V
E
F
A
I
L
S
PLUG TEST/
RESET BUTTONS
FIGURE 5 — UNIT COMPONENTS