Thermo King 919180, Руководство пользователя

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Refrigeration Service Operations
103
Condenser/Radiator Coil
Removal
1. Remove the refrigerant charge.
2. Remove the grille assembly.
3. Drain engine coolant from the expansion tank
and disconnect the coolant hoses from the
condenser/radiator coil.
4. Unsolder the hot gas inlet tube and liquid
refrigerant line connections.
5. Unbolt and remove the condenser/radiator
coil.
Installation
1. Clean the tubes for soldering.
2. Place the coil in the unit and install the
mounting hardware.
3. Solder the inlet line and liquid line refrigerant
connections.
4. Pressurize the refrigeration system and test for
leaks. If no leaks are found, evacuate the
system.
5. Connect the coolant hoses to the radiator and
refill the expansion tank with 50/50 ethylene
glycol/water solution.
6. Recharge the unit with refrigerant and check
the compressor oil.
7. Reinstall the front grille.
Receiver Outlet Check Valve
Removal
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Place a heat sink on the check valve.
3. Unsolder lines and remove the check valve.
Installation
1. Clean the tubes for soldering.
2. Place the check valve in position. The arrow
on the valve body indicates the direction of
refrigeration flow through valve.
3. Place a heat sink on the check valve.
4. Solder the inlet and outlet connections.
5. Pressurize the low side and test for leaks. If no
leaks are found, evacuate the low side.
6. Open the refrigeration valves and place the
unit in operation. Check the refrigerant charge
and the compressor oil. Add as required.
Liquid Injection Valve
Removal
1. Pump down the unit and recover charge.
2. Remove the feeler bulb from the discharge
line clamp. Note the position of the feeler on
the discharge line.
NOTE: There is a dimple in the bottom of
discharge tube to nest the liquid injection
valve bulb.
3. Unsolder the inlet/outlet lines from the liquid
injection valve.
4. Remove liquid injection valve mounting bolts
and remove the liquid injection valve from the
unit.
CAUTION: 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.