Thermo King Spectrum DE 30-2, Manual, Page: 93 / 140

Refrigeration Service Operations
93
Condenser Inlet Solenoid Valve
(CIS)
Removal
1. Recover the refrigerant charge.
2. Remove the coil and disassemble the valve.
3. Unsolder the hot gas lines from the valve, and
remove the valve from the unit.
Installation
1. Clean the tubes for soldering.
2. Remove the coil, disassemble the valve, and
place the valve in position.
3. Solder the inlet and outlet connections. After
the valve cools, assemble the valve and install
the coil.
4. Pressurize the refrigeration system and test for
leaks.
5. If no leaks are found, evacuate the system.
6. Recharge the unit with proper refrigerant and
check the compressor oil.
Condenser Inlet Check Valve
(CICV) Repair
Removal
1. Recover the refrigerant charge.
2. Remove the cap nut from the check valve, and
remove the spring and seat.
Installation
1. Inspect the inside of the check valve body for
damage or foreign particles which might
adhere to the seat and damage the new seat. If
the body is damaged, replace the check valve.
2. Install the new seat and spring. Place the new
gasket on cap and torque to 45 ft-lb (61 N•m).
3. Pressurize the refrigeration system and test for
leaks.
4. If no leaks are found, evacuate the system.
5. Recharge the unit with proper refrigerant and
check the compressor oil.
Condenser Inlet Check Valve
(CICV) Replacement
Removal
1. Recover the refrigerant charge.
2. Unsolder the lines and remove the check
valve.
NOTE: Disassemble the valve before
unsoldering.
Installation
1. Clean the tubes for soldering.
2. Place the disassembled check valve in
position. The arrow on the valve body
indicates the direction of refrigerant flow
through the valve.
3. Solder the inlet and outlet connections. After
the valve cools, reassemble it.
4. Pressurize the refrigeration system and test for
leaks.
5. If no leaks are found, evacuate the system.
6. Recharge the unit with proper refrigerant and
check the compressor oil.
Receiver Tank Pressure
Solenoid Valve (RTPS)
Removal
1. Recover the refrigerant charge.
2. Remove the coil from the valve.
3. Unsolder the hot gas lines from the valve, and
remove the valve from the unit.
CAUTION: Use a heat sink or wrap the
valve with wet rags to prevent damaging
the valve.
CAUTION: Use a heat sink or wrap the
valve with wet rags to prevent damaging
the valve.
CAUTION: Use a heat sink or wrap the
valve with wet rags to prevent damage.