Thermo King SB-190 30, Manual

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Refrigeration Service Operations (Rev. 12/03)
69
DISCHARGE VIBRASORBER
Removal
1. Recover the refrigerant charge.
2. Heat the connections on the vibrasorber until the vibra-
sorber can be removed.
CAUTION: Use a heat sink, P/N 204-584 or
wrap the vibrasorber with wet rags to prevent
damaging the vibrasorber.
Installation
1. Prepare the vibrasorber and tubing fittings by cleaning
thoroughly.
2. Solder the vibrasorber connections.
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. Recover the refrigerant charge.
2. Place a heat sink on the check valve.
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.
aea648
1. Valve
2. Neoprene Seal
3. Valve Seat
4. Spring
Cross Section of In-line Condenser Check Valve