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ARMY TM 9-4120-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
1-10. EQUIPMENT DATA - Continued.
Performance Data
Capacities
Cooling ..........................................................................50,000 Btu/hr at 125°F (52°C) ambient
condenser air inlet temperature below
the altitude of 10,000 ft.
Supply Air.......................................................................55°F (dry bulb) ± 3°F
12.7°C (dry bulb)± 1.7°C
Heating .........................................................................34,150 BTU/HR (10 KW)
Air Circulating ................................................................1700 CFM (47.6m³/min) at 1.5 in. (3.81 cm) water
gage external static pressure.
Fresh Air Flow ...............................................................0 to 100 CFM (to 2.8 m³/min, adjustable)
Environmental Limits
Ambient Air Temperature
Operating-Cooling .........................................................0°F to +125°F (-17.70° to +52°C)
-Heating .........................................................-40°F to + 90°F (-40°C to +32°C)
Mechanical Data
Refrigeration,
Number of stages ..........................................................One (1)
Refrigerant ....................................................................R-22
Condenser Section
Compressor ...................................................................Reciprocating semi-hermetic, 8 hp motor
Condenser Coil ..............................................................Copper tubes, fins and end plates; all tin plated
Condenser Fan...............................................................Forward curved centrifugal, 1725 rpm with 3-hp motor
Evaporator Section
Evaporator Valve ...........................................................Thermostatic
Evaporator Coil ..............................................................Copper tubes, fins and end plates; all tin plated
Evaporator Fan...............................................................Forward curved centrifugal, 1725 rpm with 1-1/2 hp
motor
Air Filter .........................................................................Permanent, cleanable type
Electrical Data
Power
Input Voltage .................................................................208 V ac, 3-phase, 50/60 Hz, 5-wire
Power Consumption (total) .............................................15 KW cooling, 12 KW heating
Continuous Transients ...................................................±10% voltage (187.2 to 228.8 V ac)
±5% frequency (47.5 to 52.5/57 to 63 Hz)
Fan Motors
Type
..........................................................................3-phase, induction, ball bearing
Protection ......................................................................Currents overloads and internal thermal overloads.
Heating
Number of stages ..........................................................One (1)
Type
..........................................................................208 V ac, single phase, six (6) elements
Controls..........................................................................Thermostat
Safety switches ..............................................................Air flow and over temperature cutouts
Cooling
Controls .........................................................................EPR Valve or thermostat
Safety Switches .............................................................High and low refrigerant pressure cutouts, low
compressor oil pressure cutout, dirty air filter cutout
1-6
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