2
UNIT OPERATION HAZARD
Failure to follow this caution may result in improper product
operation.
Do not bury more than 36” (914 mm) of line set underground.
Refrigerant may migrate to cooler buried section during
extended periods of unit shut--down, causing refrigerant
slugging and possible compressor damage at start--up.If ANY
section of the line set is buried underground, provide a
minimum 6” (152 mm) vertical rise at the service valve.
CAUTION
!
INSULATION
SUCTION TUBE
LIQUID TUBE
OUTDOOR WALL INDOOR WALL
LIQUID TUBE
SUCTION TUBE
INSULATION
CAULK
HANGER STRAP
(AROUND SUCTION
TUBE ONLY)
JOIST
1” MIN
THROUGH THE WALL
SUSPENSION
A07588
Fig. 1 --- Connecting Tubing Installation
INSTALLATION
INSPECT NEW UNIT
File claim with shipping company prior to installation if shipment
is damaged or incomplete. Locate unit rating plate on unit service
panel. It contains information needed to properly install unit.
Check rating plate to be sure unit matches job specifications.
LOCATION
Check local codes for regulations concerning zoning, noise,
platforms, and other issues.
Locate unit away from fresh air intakes, vents, or bedroom
windows. Noise may carry into the openings and disturb people
inside.
Locate unit in a well drained area, or support unit high enough so
that water runoff will not enter the unit.
Locate unit away from areas where heat, lint, or exhaust fumes will
be discharged onto unit (as from dryer vents).
Locate unit away from recessed or confined areas where
recirculation of discharge air may occur (refer to CLEARANCES
section of this document).
Roof--top installation is acceptable providing the roof will support
the unit and provisions are made for water drainage and
noise/vibration dampening.
NOTE: Roof mounted units exposed to wind may require wind
baffles. Consult the manufacturer for additional information.
INSTALL ON SOLID, LEVEL MOUNTING PAD
If conditions or local codes require the unit be attached to pad,
tie--down bolts should be used and fastened through knockouts
provided in unit base pan. Refer to unit mounting pattern in Fig. 2
to determine base pan size and knockout hole location.
Arrange supporting members to adequately support unit and
minimize transmission of vibration to building. Consult local codes
governing rooftop applications.
CLEARANCE REQUIREMENTS
When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 24 in. (609.6 mm)
clearance to service end of unit and 48 in. (1219.2 mm) (above
unit. For proper airflow, a 6--in. (152.4 mm) clearance on 1 side of
unit and 12--in. (304.8 mm) on all remaining sides must be
maintained. Maintain a distance of 24 in. (609.6 mm) between
units or 18 in. (457.2 mm) if no overhang within 12 ft. (3.66 m)
Position so water, snow, or ice from roof or eaves cannot fall
directly on unit.
On rooftop applications, locate unit at least 6 in. (152.4 mm) above
roof surface.
C
B
A
3
⁄
8
″D. (9.53) TIEDOWN
KNOCKOUTS (2) PLACES
A94199
Base Pan
Width x Depth
in. (mm)
Tie Down
Knockouts in. (mm)
A B C
18 X 18
(457.2 X 457.2)
3
(76.2)
15
(381.0)
10--- 3/16
(258.8)
22--- 1/2 X 22--- 1/2
(63.5 X 63.5)
3--- 11/16
(93.7)
18--- 1/8
(460.4)
14--3/8
(365.1)
30 X 30
(762 X 762)
6 --- 1 / 2
(165.1)
23--- 1/2
(596.9)
20
(508)
Fig. 2 --- Tie Down Knockouts
OPERATING AMBIENT
The minimum outdoor operating ambient in cooling mode is 55_F
(12.78_C), and the maximum outdoor operating ambient in
cooling mode is 125_F (51.67_C).
REPLACE INDOOR ACCURATER PISTON, IF
REQUIRED
Check indoor coil piston to see if it matches the required piston
shown on outdoor unit rating plate. If it does not match, replace
indoor coil piston with piston shipped with outdoor unit. The
piston shipped with outdoor unit is correct for any approved indoor
coil combination.
MAKE REFRIGERANT TUBING CONNECTIONS
Component
Matches
Check to see that the proper system components are in place,
especially the indoor coil.
R--22 outdoor units can only be used with R--22 specific indoor
coils. If there is a refrigerant mis--match, consult the indoor coil
manufacturer to determine if a refrigerant conversion kit is
available for the indoor coil.
This outdoor unit is designed for use only with indoor coils that
utilize a TXV refrigerant metering device. If any other type of
metering device is installed on the indoor coil, consult the indoor
coil manufacturer to determine if a TXV conversion kit is available
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