Refrigeration Service Operations
94
2. Solder the hot gas line and suction line
connections to the evaporator coil.
3. Solder the distributor to the expansion valve.
4. Replace and connect the sensors.
5. Pressurize the low side and test for leaks. If no
leaks are found, evacuate the low side.
6. Clean the suction line to a bright polished
condition. Install the feeler bulb on the side of
the suction line in its former position. The
feeler bulb must make good contact with the
suction line or operation will be faulty. Wrap
with insulating tape.
7. Replace the upper and lower evaporator
access panels.
8. Open the refrigeration valves and place the
unit in operation. Check the refrigerant charge
and compressor oil. Add as required.
Accumulator
Removal
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Unsolder the inlet and outlet suction lines
from the accumulator.
3. Unbolt and remove the accumulator from the
unit.
Installation
1. Place the accumulator in the unit and tighten
the mounting bolts and nuts.
2. Solder the inlet and outlet suction lines to the
accumulator.
3. Pressurize the low side and test for refrigerant
leaks. If no leaks are found, evacuate the low
side.
4. Open the refrigeration valves and place the
unit in operation. Check the refrigerant charge
and the compressor oil, and add as required.
Suction Vibrasorber
Removal
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Unsolder the suction vibrasorber from the
suction service valve.
3. Unsolder the connection to the accumulator
and remove the vibrasorber from the unit.
Installation
1. Prepare the suction vibrasorber and tube
fittings for soldering by cleaning thoroughly.
2. Solder the vibrasorber to the suction service
valve.
3. Solder the suction hose connection to the
accumulator.
4. Pressurize the low side and check for leaks. If
no leaks are found, evacuate the system.
5. Open the refrigeration valves and place the
unit in operation. Check the refrigerant charge
and the compressor oil, and add as required.
High Pressure Cutout Switch
and High Pressure Switch
Removal
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Front seat the discharge and suction service
valves. Remove the remaining refrigerant
from the compressor.
CAUTION: Use a heat sink or wrap
vibrasorber with wet rags to prevent
damaging the vibrasorber.
CAUTION: Use a heat sink or wrap
vibrasorber with wet rags to prevent
damaging the vibrasorber.
CAUTION: Use a heat sink or wrap the
vibrasorber with wet rags to prevent
damaging the vibrasorber.
CAUTION: Use a heat sink or wrap the
vibrasorber with wet rags to prevent
damaging the vibrasorber.
Содержание 002008
Страница 4: ...4 ...
Страница 25: ...Unit Description 25 Figure 3 Zone 1 Cool Zone 2 Cool and Zone 3 Cool Zone 3 Zone 2 Zone 1 AGA168 ...
Страница 27: ...Unit Description 27 Figure 4 Zone 1 Cool Zone 2 Cool and Zone 3 Heat Zone 3 Zone 2 Zone 1 AGA169 ...
Страница 30: ...Unit Description 30 Figure 9 Front View AJA920 ...
Страница 31: ...Unit Description 31 1 Access Panels 2 Defrost Damper Figure 10 Back View 1 2 ARA104 ...
Страница 114: ...Mechanical Diagnosis 114 ...
Страница 116: ...Electric Standby Diagnosis 116 ...
Страница 120: ...Remote Evaporator Specifications 120 ...
Страница 122: ...Remote Evaporator Maintenance Inspection Schedule 122 ...
Страница 128: ...Remote Evaporator Electrical Maintenance 128 ...
Страница 132: ...Remote Evaporator Refrigeration Service Operations 132 ...
Страница 134: ...Remote Evaporator Structural Maintenance 134 ...
Страница 136: ...Remote Evaporator System Diagnosis 136 ...
Страница 140: ...Index 140 ...
Страница 142: ......
Страница 143: ...143 Model 30 Schematic Diagram Page 1 of 2 ...
Страница 144: ...144 Model 30 Schematic Diagram Page 2 of 2 ...
Страница 145: ...145 Model 30 Wiring Diagram Page 1 of 4 ...
Страница 146: ...146 Model 30 Wiring Diagram Page 2 of 4 ...
Страница 147: ...147 Model 30 Wiring Diagram Page 3 of 4 ...
Страница 148: ...148 Model 30 Wiring Diagram Page 4 of 4 ...
Страница 149: ...149 Model 50 Schematic Diagram Page 1 of 2 ...
Страница 150: ...150 Model 50 Schematic Diagram Page 2 of 2 ...
Страница 151: ...151 Model 50 Wiring Diagram Page 1 of 5 ...
Страница 152: ...152 Model 50 Wiring Diagram Page 2 of 5 ...
Страница 153: ...153 Model 50 Wiring Diagram Page 3 of 5 ...
Страница 154: ...154 Model 50 Wiring Diagram Page 4 of 5 ...
Страница 155: ...155 Model 50 Wiring Diagram Page 5 of 5 ...