Thermo King 098916, Руководство по обслуживанию

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Refrigeration Maintenance
150
Compressor Digital Control
Valve Replacement
Digital Control Valve Removal
To remove the compressor digital control valve,
perform the following steps:
1. Isolate the compressor and digital valve from
the system.
a. Front seat the discharge service valve by
turning the valve fully clockwise.
b. Front seat the suction service valve by
turning the valve fully clockwise.
c. Turn the digital service valve one quarter
turn to the right.
2. Turn the Unit On/Off switch Off.
3. Disconnect electrical connections to valve
coil.
4. Unsolder the liquid line connections to the
valve.
5. Remove the valve from the unit.
Digital Control Valve Installation
To install the compressor digital control valve,
perform the following steps:
1. Clean the tubes for soldering.
2. Place the new valve in position and solder the
liquid line connections.
3. Perform a leak test (see Leak Testing the
Refrigeration). Repair leak if required.
4. Check the refrigerant charge (see Checking
the Refrigerant Charge).
5. Reconnect the electrical wires to the valve.
6. Perform a controller pretrip test to verify
system operation.
CAUTION: Use a heat sink or wrap the
switch with wet rags to prevent damage to
the new switch.
1. Discharge Service Valve
2. Suction Service Valve
3. Compressor
4. Digital Service Valve
5. Digital Control Valve
Figure 98: Digital Control Valve
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