157650-UIM-B-1105
2
Unitary Products Group
2.
The outdoor unit must not be installed with any duct work in the air
stream. The outdoor fan is the propeller type and is not designed
to operate against any additional external static pressure.
3.
The maximum and minimum conditions for operation must be
observed to assure a system that will give maximum performance
with minimum service.
4.
The maximum allowable line length for this product is 75 feet.
UNIT INSTALLATION
LOCATION
Before starting the installation, select and check the suitability of the
location for both the indoor and outdoor unit. Observe all limitations and
clearance requirements.
The outdoor unit must have sufficient clearance for air entrance to the
condenser coil, for air discharge, and for service access. See Figure 1.
NOTE: For multiple unit installations, units must be spaced a minimum
of 18 inches apart. (Coil face to coil face.)
If the unit is to be installed on a hot sun exposed roof or a black-topped
ground area, the unit should be raised sufficiently above the roof or
ground to avoid taking the accumulated layer of hot air into the outdoor
unit.
Provide an adequate structural support.
GROUND INSTALLATION
The unit may be installed at ground level on a solid base that will not
shift or settle, causing strain on the refrigerant lines and possible leaks.
Maintain the clearances shown in Figure 1 and install the unit in a level
position.
Normal operating sound levels may be objectionable if the unit is placed
directly under windows of certain rooms (bedrooms, study, etc.).
Condensate will drain from beneath the coil of the outdoor unit during
the defrost cycle. Normally this condensate may be allowed to drain
directly on the ground.
Elevate the unit sufficiently to prevent any blockage of the air entrances
by snow in areas where there will be snow accumulation. Check the
local weather bureau for the expected snow accumulation in your area.
Isolate the unit from rain gutters to avoid any possible wash out of the
foundation.
UNIT PLACEMENT
1.
Provide a base in the pre-determined location.
2.
Remove the shipping carton and inspect for possible damage.
3.
Compressor tie-down bolts should remain tightened.
4.
Position the unit on the base provided.
NOTE: Heat pumps will defrost periodically resulting in water drainage.
The unit should not be located where water drainage may freeze and
create a hazardous condition - such as sidewalks and steps.
LIQUID LINE FILTER-DRIER
The heat pumps have a solid core bi-flow filter/drier located on the liquid
line.
NOTE: Replacements for the liquid line drier must be exactly the same
as marked on the original factory drier. See Source 1 for O.E.M.
replacement driers.
*As listed on the “Energy Guide yellow sticker on the unit.
AIR TEMPERATURE AT
OUTDOOR COIL, °F
AIR TEMPERATURE AT
INDOOR COIL, °F
Min.
Max.
Min.
Max.
DB
Cool
DB
Heat
DB
Cool
DB
Heat
WB
Cool
DB
Heat
WB
Cool
DB
Heat
50
-10
115
75
57
50
1
1. Operation below this temperature is permissible for a short period of
time, during morning warm-up.
72
80
FIGURE 1: Typical Installation with Required Clearances
MINIMUM 24” SERVICE ACCESS
CLEARANCE ON ONE SIDE
48” OVERHEAD
CLEARANCE
10” CLEARANCE
COIL AREA
WEATHERPROOF
DISCONNECT
SWITCH
THERMOSTAT
TO FURNACE OR
AIR HANDLER
TERMINAL BLOCK
NEC CLASS 1 WIRING
NEC CLASS 2 WIRING
TO INDOOR COIL
SEAL OPENING(S) WITH
PERMAGUM OR EQUIVALENT
CONTROL
ACCESS
PANEL
NOTE: ALL OUTDOOR WIRING
POSSIBLE OUTDOOR THERMOSTAT KIT LOCATIONS
(UNIT MOUNTING NOT AVAILABLE ON ALL MODELS)
The outdoor unit should not be installed in an area where mud or
ice could cause personal injury. Remember that condensate will
drip from the unit coil during heat and defrost cycles and that this
condensate will freeze when the temperature of the outdoor air is
below 32°F.
Failure to do so or using a substitute drier or a granular type may
result in damage to the equipment.
Filter-Drier
Source 1 Part No.
Apply with Models
13 SEER
19312 / 1458-001
024
20738 / 6536-334
030, 036, 042
