Thermo King Spectrum DE 30-2, Руководство пользователя, Страница: 94 / 140

Refrigeration Service Operations
94
Installation
1. Clean the tubes for soldering.
2. Remove the coil from the valve, and place the
valve in position.
3. Solder the inlet and outlet connections. After
the valve cools, install the coil on the valve.
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.
Purge Valve (PV)
Removal
1. Recover the refrigerant charge.
2. Remove the coil from the valve.
3. Unsolder the refrigeration lines from the
valve, and remove the valve from the unit.
Installation
1. Clean the tubes for soldering.
2. Remove the coil from 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 the proper refrigerant.
Compressor Oil Filter
This unit is equipped with a compressor oil filter.
The compressor oil filter should be changed when
the drier is replaced.
The outlet fitting is larger than the inlet fitting, so
the compressor oil filter cannot be put on
backwards. There are two fittings on the inlet end
of the compressor oil filter. The inlet fitting
contains a check valve that prevents reverse flow
through the compressor oil filter. The capped
fitting is called the oil pressure access port and is
used to check the compressor oil pressure (see
“Checking Compressor Oil Pressure” on page 95).
CAUTION: Use a heat sink or wrap the
valve with wet rags to prevent damage.
CAUTION: Use a heat sink to prevent
damaging the valve.
CAUTION: Use a heat sink to prevent
damaging the valve.
1. Oil Pressure Access Port
2. Inlet Fitting
3. Outlet Fitting
Figure 64: Compressor Oil Filter
2
1
3
AEA718