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INSTALLATION
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing and gloves when
handling parts.
Check Equipment and Job Site
Unpack Unit
Move to final location. Remove carton taking care not to damage
unit.
Inspect Equipment
File claim with shipping company prior to installation if shipment
is damaged or incomplete. Locate unit rating plate on unit corner
panel. It contains information needed to properly install unit.
Check rating plate to be sure unit matches job specifications.
This unit employs one louver spacer on each of the four sides to
prevent louver movement during operation. The louver spacers are
trapped between the coil surface and louver at the approximate
center of each side (See Fig. 2). This louver spacer should be
present and, if dislodged during shipment, must be reinstalled
before unit is placed into operation.
Fig. 2 --- Louver Spacer Location
Install on a Solid, Level Mounting Pad
If conditions or local codes require the unit be attached to pad,
tiedown bolts should be used and fastened through knockouts
provided in unit base pan. Refer to unit mounting pattern in
Fig. 3 to determine base pan size and knockout hole location.
For hurricane tie downs, contact distributor for details and PE
Certification (Professional Engineer), if required.
On rooftop applications, mount on level platform or frame. Place
unit above a load–bearing wall and isolate unit and tubing set from
structure. Arrange supporting members to adequately support unit
and minimize transmission of vibration to building. Consult local
codes governing rooftop applications.
Roof mounted units exposed to winds above 5 mph may require
wind baffles. Consult the Service Manual – Residential Split
System Air Conditioners and Heat Pumps for wind baffle
construction.
NOTE:
Unit must be level to within ±2° (±3/8 in./ft.) per
compressor manufacturer specifications.
Clearance Requirements
When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 24 in. (610 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. Position
so water, snow, or ice from roof or eaves cannot fall directly on
unit.
3/8–in. (9.53 mm) Dia.
Tiedown Knockouts in
Basepan(2) Places
UNIT BASE PAN
Dimension in. (mm)
31–1/2 X 31–1/2
(800 X 800)
35 X 35
(889 X 889)
Fig. 3 --- Tiedown Knockout Requirements
On rooftop applications, locate unit at least 6 in. (152.4 mm) above
roof surface.
Operating Ambient
The minimum outdoor operating ambient in cooling mode is
55°F/12.78_C without low ambient cooling enabled, and the
maximum outdoor operating ambient in cooling mode is
125°F/51.67_C. The maximum outdoor operating ambient in
heating mode is 66 °F/18.89_C.
Elevate Unit
!
UNIT OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
A11380a
Unit must be kept free of an accumulation of water and/or ice
in the basepan.
Elevate unit per local climate and code requirements to provide
clearance above estimated snowfall level and ensure adequate
drainage of unit. If using accessory support feet, use installation
instructions from kit for installation.
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
To prevent damage to the unit, ensure that it is located with
the supports such that the unit is stable in all circumstances
including adverse conditions.
2
View From Top
TIEDOWN KNOCKOUT LOCATIONS in. (mm)
A
B
9–1/8 (231.8)
6–9/16 (166.7)
24–11/16 (627.1)
9–1/8 (231.8)
6–9/16 (166.7)
28–7/16 (722.3)
CAUTION
CAUTION
C
A05177
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