Ingersoll-Rand Thermo King CRR DF MPC2000, Maintenance Manual

Page: 54 / 165

Operating Instructions
53
Post Load Procedure
1. Make sure all doors are closed and locked.
2. Switch the Unit On/Off switch to ON position.
3. Adjust controller setpoint to the desired temperature:
NOTE: The setpoint temperature can be set between -10 C and -60 C (14 F and -76 F) in either F
or C using the C/F key. Just press and hold the F/C key (to display the alternate temperature scale).
• Press SETPOINT key to display cursor flashing in the “TEMP SETP” line
• Press F4 key to enter new setpoint. Enter Arrow appears in the menu line and the current setpoint
disappears.
• Enter minus sign first by pressing EXIT key. Then press numeric keys to enter new setpoint.
• With correct setpoint in display, press and hold F4 key until cursor stops flashing. Controller
places new setpoint in controller memory and shows new setpoint in LCD display.
NOTE: New setpoint must be between -10 C and -60 C (14 F and -76 F) or controller will return to the
previous setpoint display.
NOTE: If the F4 key is not pressed within 30 seconds, the controller will default (return) to the
previous setpoint. If this occurs, repeat step 3.
4. Enter trip identification information into the controller memory by selecting “Cargo Data” from the
MISC FUNCTIONS menu of the controller.
5. One-half hour after loading, initiate a manual defrost cycle:
• Press the DEFROST key. The Defrost and Heat LEDs turns ON as the unit enters Defrost. Defrost
will stop automatically.
NOTE: The evaporator coil temperature must be below 10 C (50 F) to allow the unit the enter a defrost
cycle. If the evaporator coil temperature is too high, the LCD display will read “Defrost Not Activated”.
Starting the Unit on Ship
1. Connect the unit power cord to proper power source:
• 460/380V power cord to 460/380V, 60-50 Hz power source.
• Turn the power supply On/Off switch ON.
2. Turn the unit On/Off switch to ON position. Check for condenser fan and evaporator fan motor
operation (see “Condenser Fan and Evaporator Fan Rotation” in the Electrical Maintenance chapter of
this manual). If the unit was properly pretripped, correct condenser fan rotation will also indicate
correct evaporator fan rotation.
3. Check the controller setpoint to make sure it is correct (agrees with shipping manifest).
CAUTION: Supply power connections from the refrigeration unit to the power source must
always be made with the refrigeration Unit On/Off switch and power supply On/Off switch in
the OFF positions. Never attempt to start or stop the refrigeration unit with the unit power
cable.