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The outdoor unit contains system refrigerant charge for operation
with AHRI rated indoor unit when connected by 15 ft. (4.57 m) of
field- -supplied or factory accessory tubing. For proper unit
operation, check refrigerant charge using charging information
located on control box cover and/or in the Check Charge section of
this instruction.
IMPORTANT: Maximum liquid- -line size is 3/8- -in. OD for all
residential applications including long line.
IMPORTANT: Always install the factory- -supplied liquid- -line
filter drier. If replacing the filter drier, refer to Product Data Digest
for appropriate part number. Obtain replacement filter driers from
your distributor or branch.
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, tie
down 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 local distributor for details and PE
(Professional Engineer) certification, if required by local
authorities.
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 may require wind baffles.
Consult the Application Guideline and 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,9.5 mm/m.)
per compressor manufacturer specifications.
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 Locations
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. 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.
Operating Ambient
The minimum outdoor operating ambient in cooling mode is 55_F
(12.78_C) without low ambient cooling enabled in the Infinity
Control, and the maximum outdoor operating ambient in cooling
mode is 125_F (51.67_C). At line voltage of 208v (or below, and
A11380a
outdoor ambient of 120_F (48.9_C) (and above), the compressor
operates in low stage. Low ambient cooling operation is possible
at ambient as low as 0_F (- -17.78_C) using UI Infinity controlled
low ambient on 17 and 21 SEER models and low ambient
accessory kits on 17 SEER models..
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)
C
A05177
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