Refrigeration Service Operations (Rev. 04/02)
67
CAUTION: Use a heat sink, P/N 204-584 or
wrap the vibrasorber with wet rags to prevent
damaging the vibrasorber.
3.
Pressurize the system and test for leaks. If no leaks are
found, evacuate the system.
4.
Charge the unit with the proper refrigerant and check
the compressor oil level.
IN-LINE CONDENSER CHECK VALVE
This unit uses an in-line condenser check valve. The in-line
check valve is not repairable and must be replaced if it fails.
A heat sink must be used on the in-line check valve when it
is being soldered in place to prevent damage to the neoprene
seal.
CONDENSER CHECK VALVE
REPLACEMENT
Removal
1.
Remove the refrigerant charge.
2.
Place a heat sink on the check valve.
1.
Valve
2.
Neoprene Seal
3.
Valve Seat
4.
Spring
Cross Section of In-line Condenser Check Valve
aea648
3.
Unsolder the lines and remove the check valve.
Installation
NOTE: A heat sink must be used on the in-line check
valve when it is being soldered in place to prevent damage
to the neoprene seal.
1.
Clean the tubes for soldering.
2.
Place the check valve in position. The arrow on the
valve body indicates the direction of refrigerant flow
through the valve.
3.
Place a heat sink on the check valve.
4.
Solder the inlet and outlet connections.
5.
Pressurize the refrigeration system and test for leaks.
6.
If no leaks are found, evacuate the system.
7.
Recharge the unit with proper refrigerant and check the
compressor oil.
BYPASS CHECK VALVE
Removal
1.
Pump down the low side and equalize the pressure to
slightly positive.
2.
Close the bypass service valve.
3.
Unscrew the flare nut from the check valve.
4.
Unscrew the check valve from the bypass valve.
CAUTION: The receiver tank outlet tube may
be bent if a back-up wrench is not used on the
fitting.
Installation
1.
Coat the fittings on the bypass check valve with com-
pressor oil and install on the service valve fitting.
Tighten it securely, and use a back-up wrench.
Summary of Contents for SB-III 30 SR+
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Page 111: ...101 Early Model Coiled Wire Fuse Link Wiring Schematic ...
Page 112: ...102 Early Model Coiled Wire Fuse Link Wiring Diagram Page 1 of 4 ...
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Page 115: ...105 Early Model Coiled Wire Fuse Link Wiring Diagram Page 4 of 4 ...
Page 116: ...106 Late Model Fuse Link in Battery Cable Wiring Schematic ...
Page 117: ...107 Late Model Fuse Link in Battery Cable Wiring Diagram Page 1 of 4 ...
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