Installation guide
For hurricane tie downs - contact your local distributor for details
and PE (Professional 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 Low-Ambient pressure switch installation instructions
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 30 in. (762 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 one 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.
Figure 2 [
3/8--in. (9.53 ram) Dia.
Tiedown Knockouts in
Basepan(2) Places
Tie Down Knockouts
I
View From Top
UNIT BASE PAN TIEDOWN KNOCKOUT LOCATIONS in. (mm)
Dimension A B C
31-1/2 X 31-1/2
(800 X 800) 9-1/8 (231,8) 6-9/16 (166,7) 24-11/16 (627.1)
35 X 35
(889 X 889) 9-1/8 (231,8) 6-9/16 (166,7) 28-7/16 (722,3)
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), and the maximum outdoor operating ambient in
cooling mode is 125°F (51.67°C).
17 SEER product is approved for low ambient cooling operation
down to an ambient as low as 0°F (-17.78°C) with low ambient
accessory kits.
19 SEER product is not approved for low ambient cooling
applications.
This unit is not approved for low ambient cooling
applications.
Make Piping Connections
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could result in personal
injury or death.
Relieve pressure and recover all refrigerant before system
repair or final unit disposal.
Use all service ports and open all flow-control devices,
including solenoid valves.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not leave system open to atmosphere any longer than
minimum required for installation. POE oil in compressor is
extremely susceptible to moisture absorption. Always keep
ends of tubing sealed during installation.
If ANY refrigerant tubing is buried, provide a 6 in. (152.4
mm) vertical rise at service valve. Refrigerant tubing
lengths up to 36 in. (914.4 mm) may be buried without
further special consideration. Do not bury lines more than
36 in. (914.4 mm).
Outdoor units may be connected to indoor section using
accessory tubing package or field-supplied refrigerant grade
tubing of correct size and condition. For tubing requirements
beyond 80 ft/24.38 m, substantial capacity and performance
losses can occur. Following the recommendations in the Long
Line Applications Guideline for Split-System Air Conditioners and
Heat Pumps will reduce these losses. Refer to Table 1 for
accessory requirements. Refer to Table 2 for field tubing
diameters.
There are no buried-line applications greater than 36 in. (914.4
mm).
If refrigerant tubes or indoor coil are exposed to atmosphere, they
must be evacuated to 500 microns to eliminate contamination and
moisture in the system.
Outdoor Unit Connected to Factory Approved Indoor
Unit
Outdoor unit contains correct system refrigerant charge for
operation with factory approved AHRI rated indoor unit when
connected by 15 ft. (4.57 m) of field-supplied or
factory-accessory tubing, and factory supplied filter drier. Check
refrigerant charge for maximum efficiency.
421 01 1702 04 specificationssubjectto change without notice. 3