036-21363-002-B-0303
Unitary Products Group 5
SYSTEM FLEXIBILITY
TABLE 2: SYSTEM APPLICATION DATA
Air Temperature on OUTDOOR Coil, °F Air Temperature on INDOOR Coil, °F
Minimum Maximum Minimum Maximum
Cool Heat Cool Heat Cool Heat Cool Heat
40 db
0 db
*
115 db 75 db 57 wb
50 db
†
72 wb 80 db
Air Flow across INDOOR Coil, CFM (Min./Max.)
FA-120 3200/4800
*.
Below 0°F,the control circuit will ock out the compressor and allow the electric heat accessory to cycle at its standby capacity.
†.
Operation below this temperature is permissible for a short period of time when a unit is required to heat the conditioned space up to 50°F.
The coils for both the indoor and outdoor units are not only
circuited and headered for optimum heating and cooling per-
formance, but also for ample subcooling during all modes of
operation. The sub-cooling permits the outdoor unit to be
mounted 60 feet over or under the indoor unit without any
danger of flashing liquid refrigerant during the heating or the
cooling cycle.
Refer to the REFRIGERANT PIPING table above for more
detailed information on refrigerant pipe limitations.
A = 1-3/8" OD Vapor Line
B = 1-1/8" OD Vapor Line
C = Intermediate Trap - only required when a riser exceeds
50 feet.
D = Inverted Trap - only required when the horizontal run to
the unit exceeds 25 feet.
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