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Refrigeration Service Operations (Rev 6/98)
85
HEAT EXCHANGER
Removal
1.
Pump down the low side and equalize the pressure to
slightly positive.
2.
Remove the grille and both idler pulleys.
3.
Remove the fan belt.
4.
Remove the fan module mounting hardware and
remove the fan module from the front of the unit.
5.
Remove the heat exchanger mounting bolts.
6.
Unsolder the suction and liquid line connections.
7.
Remove the heat exchanger from the unit.
Installation
1.
Place the heat exchanger in the unit, and install the
mounting bolts.
2.
Solder the liquid and suction line connections.
3.
Pressurize the low side and check for leaks. If no leaks
are found, evacuate the low side.
4.
Place the fan module in the unit and install mounting
hardware.
5.
Install the idler pulleys.
6.
Install the fan belt and tighten it to the proper tension.
7.
Install the grille.
8.
Open the refrigeration valves and place the unit in oper-
ation.
EVAPORATOR COIL
Removal
1.
Pump down the low side and equalize the pressure to
slightly positive.
2.
Remove the rear panel from the evaporator housing.
3.
Disconnect and remove the sensors.
4.
Remove the feeler bulb from the suction line clamp.
Note the position of the feeler bulb on the suction line.
5.
Disconnect the distributor from the expansion valve.
6.
Unsolder the hot gas line and suction line from the
evaporator coil.
7.
Remove the mounting bolts, lift and remove the evapo-
rator coil from the housing.
Installation
1.
Place the evaporator coil in the evaporator housing and
install the mounting bolts.
2.
Solder the hot gas line and suction line connections to
the evaporator coil.
3.
Connect 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
the former position. The feeler bulb must make good
contact with the suction line or the operation will be
faulty. Wrap with insulating tape.
7.
Install the rear panel on the evaporator.
8.
Open the refrigeration valves and place the unit in oper-
ation. Check the refrigerant charge and compressor oil.
Add as required.
Summary of Contents for Super II SR+
Page 4: ......
Page 10: ...ii ...
Page 14: ...4 ...
Page 22: ...Unit Description Rev 6 98 12 Front View AEA1350 ...
Page 23: ...Unit Description Rev 6 98 13 Right Side Door Open AEA1351 ...
Page 24: ...Unit Description Rev 6 98 14 Left Side Doors Open AEA1352 ...
Page 26: ...Operating Instructions Rev 6 98 16 Control Box Cover AEA1354 ...
Page 34: ...24 ...
Page 42: ...Electronic Controls Rev 6 98 32 SOFTWARE REVISION 04XX ALARMS AEA1358 ...
Page 82: ...72 ...
Page 90: ...80 ...
Page 116: ...106 ...
Page 120: ...110 ...
Page 130: ...120 ...
Page 141: ...131 Schematic Diagram SBIII SII RMNII 30 SR MPIV ...
Page 142: ...132 Wiring Diagram SII SBIII RMN30 SR MPIV Page 1 of 4 ...
Page 143: ...133 Wiring Diagram SII SBIII RMN30 SR MPIV Page 2 of 4 ...
Page 144: ...134 Wiring Diagram SII SBIII RMN30 SR MPIV Page 3 of 4 ...
Page 145: ...135 Wiring Diagram SII SBIII RMN30 SR MPIV page 4 of 4 ...