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 TM 55-1925-273-10-1
0067 00
VALVE LINE-UP AND INDICATORS
Position or Reading
Turn-Off
Normal Mode
Holding Mode
Condensing
Condensing
Op.
Non-Op.
Mode (both)
(both Units)
Unit #1
Unit #2
Shut
Open
Open
Shut
GS38
GS39
Shut
Open
Open
Shut
GS67
GS68
Shut
Open
Open
Shut
GS48
GS49
Shut
Shut
Shut
Shut
GS82
GS71
Open
Open
Open
Open
Compressor Discharge Valve
Shut
Open
Open
Shut
Compressor Suction Valve
Shut
Open
Open
Shut
Condensor Outlet Valve
Shut
Shut
Open
N/A
RFSS-13
Shut
Open
Open
Shut
Dehydrator Outlet Valve
Shut
Shut
Shut
Shut
Dehydrator Bypass Valve
Shut
Open
Open
Shut
Dehydrator Inlet Valve
Open
Open
Open
Open
Refrigerant Pressure Gauge Valve
Shut
Open
Open
Shut
Oil Pressure Gauge Valve
Shut
Open
Open
Shut
RFSS-8
RFSS-9
Shut
Open
Open
Shut
RFSS-11
RFSS-12
Shut
Open
Open
Shut
RFSS-14
RFSS-15
Shut
Open
Open
Shut
RFSS-19
Shut
Shut
Open
Shut
RFSS-16
Shut
Shut
Open
Shut
RFSS-18
Shut
Open
Shut
N/A
RFSS-17
Shut
Open
Open
N/A
RFSS-10
Relief Valve By-Pass Valve
Shut
Open
Open
Shut
(Equalizing Line)
Shut
Shut
Shut
Shut
Purge Valve
Shut
Shut
Shut
Shut
Charge and Drain Valve
Shut
Shut
Open
N/A
RFSS-20
Shut
Open
Open
Shut
RFSS-53
RFSS-52
N/A
120-130
120-130
N/A
Discharge Pressure Gauge (PSIG)
2.4 PSIG to
2.4 PSIG to
N/A
2.3 in/hg
2.3 in/hg
N/A
Suction Pressure Gauge
N/A
Note 1
Note 1
N/A
Oil Pressure Gauge
N/A
21 to 28 PSIG 21 to 28 PSIG
N/A
Evaporator Pressure Regulator
85 F
85 F
N/A
Design
Design
N/A
Inlet Water Temperature
92.3 F
92.3 F
N/A
Design
Design
N/A
Outlet Water Temperature
N/A
-15 to -25 F
-15 to -25 F
N/A
Suction Gas Temperature
N/A
100 - 110 F
100 - 110 F
N/A
Liquid Line Temperature
1/8 or slightly 1/8 or slightly
1/8 - 1/2
lower
lower
1/8 - 1/2
Liquid Level Indicator
1/4 - 3/4
1/4 - 3/4
1/4 - 3/4
1/4 - 3/4
Oil Level Indicator
Blue
Blue
Blue
Blue
Moisture Indicator
Note: Oil pressure should be 16-22 PSIG above suction pressure.
Placard 25. Refrigeration Valve Line-up
0067 00-33
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