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Operating Instructions
50
3. Switch 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.
4. Adjust controller setpoint to the desired
temperature:
NOTE: The setpoint temperature can be set
between -29 C and +29 C (-20.2 F and +84.2
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 set-point in
controller memory and shows new
setpoint in LCD display.
NOTE: New setpoint must be between -29 C
and +29 C (-20.2 F and +84.2 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 4.
Loading Procedure
1. Make sure the Unit On/Off switch is OFF
before opening the container doors. (The unit
may be operating when loading the container
from a warehouse with door seals.)
2. Spot check and record load temperature while
loading. Especially note any off-temperature
product.
Post Load Procedure
1. Make sure all doors are closed and locked.
2. Start unit if unit is OFF.
3. Check controller setpoint for proper setting.
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 18 C (65 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”.
Post Trip Procedure
Trip data recorded by the MPC2000ID or
MP-3000a datalogger may be down loaded via the
communications port on the control box using a
DRU-II or SmartSponge handheld data retriever;
or via the REFCON remote monitor system.
Summary of Contents for CRR-40 119
Page 4: ......
Page 16: ...Safety Precautions 16...
Page 18: ...Service Guide 18...
Page 20: ...Model Features 20...
Page 32: ...Specifications 32...
Page 120: ...MP 3000a Controller 120...
Page 160: ...Wiring and Schematic Diagrams Index 160...
Page 161: ...161 MPC2000 Wiring Schematic...
Page 162: ...162 MPC2000 High Voltage Wiring Diagram...
Page 163: ...163 MPC2000 Low Voltage Wiring Diagram...
Page 164: ...164 MPC2000 WCC Wiring Schematic...