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 unit is a replacement, it is recommended that a
Carrier sleeve be used.
These 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)
provide a good seal between the grille and outdoor
coil tube sheets. These foam seals provide a barrier 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 Wall Sleeves
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
* 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
