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29 Cards in this Set

  • Front
  • Back
how many volts is the starting system on the c-17?
24 vdc.
what is the refrigerant capacity of the c-17?
125 lbs.
how many btu/hr does the c-17 provide?
300,000 btu/hr.
what is the airflow pressure of the c-17?
150 lb/min at 2 psig.
75 lb/min at 4 psig.
engine idle speed?
550-600 rpm.
normal operating rpm's?
1750 rpm.
clutch cut-in rpm's?
700 rpm or lower.
operating time per full tank of fuel?
8 hours of full cooling capacity at 1750 rpm's.
at what pressures do the high and low cutout switches disengage?
high: 365 psi
low: 20 psi
low compressor oil cutout switch cuts out and cuts un at what pressures?
cut out: 15 psi
cut in: 20 psi
"manual reset has 120 sec time delay".
what is the receiver's releif valve set at?
450 psi.
what is the melting point of the receiver's fusible metal plug?
212 degrees F
the c-17 is designed for operation in temperatures in what range?
0-110 degrees F.
what is the delivery air temp of the c-17?
40-50 degrees F.
what is the maximum rpm's the speed control governor will allow?
2300 rpm's.
what is the purpose of the precooler coil?
to lower or dehumidify the conditioned air temperature to a dew point of 40 degrees F.
which compressor is equiped with an oil cooler?
carrier.
what is the definition of dew point?
the temperature at which condensation takes place.
at what rpm will overspeed switch S9 close?
2300 RPM.
what is the designation for the engine shutdown solenoid?
L6
what relay engages the clutch once the unit the selector switch is placed in air conditioning/pump down mode?
K3 (master relay)
when the selector switch is placed in air conditioning mode, what relay opens the solenoid valves?
K2.
how many solenoid valves are energized when the unit is placed in air conditioning mode?
4. (L1, L2, L3, L4).
which solenoid supplies the precooler coil with refrigerant when the unit is placed in air conditioing mode?
L3.
WHICH SOLENOID SUPPLIES THE HOT GAS BYPASS VALVE WITH REFRIGERANT WHE THE UNIT IS PLACED IN AIR CONDITIONING MODE?
L4.
which 2 solenoid valves supply refrigerant to the aftercooler coils?
L1 and L2.
which 2 solenoid valves are closed when the unit is placed in dehumid mode?
L1 and L2.
a float switch (S5) in the reserve tank closes when the fuel remaining drops to ____.
one hour.
moving the selector switch to pump down deactivates which relay?
K2 (pump down relay) which deenergizes all 4 solenoids.