user manual

8
C. ORDER PARTS
When reporting shortages or damaged parts, or when ordering repair parts, give the
c
omplete unit model and serial numbers which are stamped on the Unit Rating Plate.
D. STANDARD ITEMS
The condensing unit consists of a completely assembled package which includes a com-
p
ressor, a condenser coil, fan, fan motors, outdoor control box, factory wiring, factory
tubing and fittings.
E. INSTALLATION GENERAL
NOTE: These units must be installed outdoors. No ductwork can be attached, or
other modifications made, to the discharge grille. Modifications will affect perfor-
mance or operation.
The condensing unit should be installed outdoors. It should be located as near as possi-
ble to the evaporator section to keep connecting refrigerant tubing lengths to a minimum.
The unit must be installed to allow a free air flow to the condenser coils.
If several units are installed adjacent to each other, care must be taken to avoid recircu-
lation of air from one condenser to another. In all installations, adequate space must be
provided for installation and servicing.
The unit must not be connected to any duct work. Do not locate unit under a roof drip; if
necessary, install gutters, etc., to prevent water run-off from hitting the unit. To prevent
air recirculation, it is recommended that the unit not be installed under an overhang, but
if necessary allow a minimum of 60 inches above the unit for air discharge.
NOTE: To prevent the possibility of freeze damage, you can install an air proving switch
in the air handler supply duct wired in series with the compressor contactor coil (24V)
which would lock out the compressor in the event of air flow failure.
F. ROOFTOP INSTALLATION (REFER TO FIGURE 4)
If rooftop installation is required, make certain that the building construction is adequate
for the weight of the unit. (Refer to physical data chart.) Before placing the unit on the
roof, make certain that the nylon rigging slings are of sufficient length to maintain equilib-
rium of the unit when lifting. Under no circumstances should the unit be lifted by only one
corner for rooftop installation.
G. SLAB INSTALLATION
Condensing units should be set on a solid level foundation. When installed at ground
level, the unit should be placed on a 6 inch cement slab. If the pad is formed at the
installation site, do not pour the pad tight against the structure, otherwise vibration will
be transmitted from the unit through the pad.
Condensing Unit
Control Box End Control Box End
36” min. [914 mm]
36” min. [914 mm]
24” min.
[610 mm]
24” min.
[610 mm]
Condensing Unit
FIGURE 3
C
LEARANCES