T-334
2--7
2.2 REFRIGERATION SYSTEM DATA
a. Compressor/Motor
Assembly
Model
RSH105
Weight (Dry)
46.5 kg (103 lb)
Approved Oil
Mobil - 32ST
Oil Charge
2957 ml (100 ounces)
Oil Sight Glass
The oil level range, with the compressor off,
should be visible within the sight glass.
b. Evaporator Expansion
Valve Superheat
Verify at -18C
(0F) container box
temperature
4.4 to 6.7C (8 to 12F)
c. Economizer Expansion
Valve Superheat
4.4 to 11.1C (8 to 20F)
d. Heater Termination Thermostat
Opens
54 (+/- 3) C = 130 (+/- 5) F
Closes
38 (+/- 4) C = 100 (+/- 7) F
e. High Pressure Switch
Cutout
25 (+/- 1.0) kg/cm
2
= 350 (+/- 10) psig
Cut-In
18 (+/- 0.7) kg/cm
2
= 250 (+/- 10) psig
f. Refrigerant Charge
Unit Configuration
Charge Requirements - R-134a
Water-Cooled
Condenser
5.56 kg
(12.25 lbs)
Receiver
5.22 kg
(11.5 lbs)
g. Fusible Plug
Melting point
99C = (210F)
Torque
6.2 to 6.9 mkg (45 to 50 ft-lbs)
h. Sight Glass/Moisture Indicator
Torque
8.9 to 9.7 mkg (65 to 70 ft-lbs)
i. Rupture Disc
Bursts at
35 +/- 5% kg/cm
2
= (500 +/- 5% psig)
Torque
6.2 to 6.9 mkg (45 to 50 ft-lbs)
j. Unit Weight
Refer to unit model number plate.
k. Water Pressure Switch
Cut-In
0.5 +/- 0.2 kg/cm
2
(7 +/- 3 psig)
Cutout
1.6 +/- 0.4 kg/cm
2
(22 +/- 5 psig)
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