![Ingersoll-Rand Thermo King CRR DF MPC2000 Maintenance Manual Download Page 25](http://html.mh-extra.com/html/ingersoll-rand/thermo-king-crr-df-mpc2000/thermo-king-crr-df-mpc2000_maintenance-manual_2060249025.webp)
Specifications
24
Microprocessor Controller
Temperature Controller:
CRR-40 DF MPC2000
MPC2000 microprocessor
CRR-40 DF MPC2000ID
MPC2000ID microprocessor
CRR-40 DF MP3000
MP3000 microprocessor
Description
MPC2000, MPC2000ID and MP3000 microprocessors
include thermostat, digital thermometer, programming
keypad, mode indicators, LED display and LCD display for
displaying unit operating and cargo information.
MPC2000ID microprocessor includes an integral
datalogger. Data logger is furnished separately on units
equipped with MPC2000 and MP3000 microprocessor.
Setpoint Range
-60.0 to -10.0 C (-76.0 to +14.0 F)
Digital Temperature Display
-80.0 to +130.0 C (-112.0 to +266.0 F)
Controller Software (Original Equipment):
See controller identification decal
Defrost Initiation:
Evaporator Coil Sensor Coil
Coil must be below 18 C (65 F) to initiate defrost by
demand, timer or manual switch.
- Manual Switch or Demand Defrost Initiation: Defrost
cycle starts when technician or controller request defrost
initiation.
- Timed Defrost Initiation: Defrost cycle starts 1 minute
after the hour immediately following a defrost timer
request for defrost initiation. For example, if the defrost
timer requests a defrost cycle at 7:35, the defrost cycle
will start at 8:01. Datalogger will record a Defrost event for
each interval in which a Defrost cycle is pending or active
(i.e. both the 8:00 and 9:00 data logs).
Demand Defrost
Demand Defrost function initiates defrost when the
temperature difference between the return air sensor and
setpoint increases to a preset value and a minimum of 6
hours of compressor ON (running) time have elapsed
since the previous defrost; indicating the presence of frost
or ice
Defrost Timer: Frozen Mode
Initially every 12 hours of compressor operation. Then
defrost interval increases 6 hours each time a timed
defrost occurs without a demand defrost in between.
Maximum time interval in frozen mode is 36 hours of
compressor operation. Defrost timer resets if the unit is
Off more than 12 hours or the setpoint is changed more
than 5 C (9 F)
Defrost Termination:
Evaporator Coil Sensor
Frozen mode: Terminates defrost when coil sensor
temperature rises to 18 C (64 F) or exceeds 8 C (46 F) for
35 minutes above 440 volts and 45 minutes below 440
volts
Interval Timer
Terminates defrost 90 minutes after initiation if coil sensor
has not terminated defrost (120 minutes if power supply is
less than 55 Hz)
Time/Temperature Function
If the evaporator coil sensor exceeds 8 C (46 F) for 15
minutes, the controller terminates defrost
Power Off
Turning unit On/Off switch Off terminates defrost
Summary of Contents for Thermo King CRR DF MPC2000
Page 5: ...4 ...
Page 11: ...List of Figures 10 ...
Page 13: ...Introduction 12 ...
Page 19: ...Safety Precautions 18 ...
Page 21: ...Service Guide 20 ...
Page 47: ...Unit Description 46 ...
Page 97: ...Microprocessor Controller 96 ...
Page 101: ...Electrical Maintenance 100 ...
Page 141: ...Structural Accessory Maintenance 140 ...
Page 147: ...Refrigeration System Diagnosis 146 ...
Page 150: ...149 CRR DF MPC2000 Controller Diagram ...
Page 151: ...150 CRR DF MPC2000 Main Relay Board Electrical Diagram ...
Page 152: ...151 CRR DF MPC2000 Unit Wiring Schematic Low Speed Winding ...
Page 153: ...152 CRR DF MP3000A Controller Diagram ...
Page 154: ...153 CRR DF MP3000A Main Relay Board Electrical Diagram ...
Page 155: ...154 CRR DF MP3000A Unit Wiring Schematic Low Speed Winding ...
Page 157: ...156 CRR DF Refrigeration System Components Page 2 of 2 ...
Page 161: ...160 CRR DF Full Cool Flow and Pressure Diagram Page 2 of 2 ...
Page 163: ...162 CRR DR Evacuation Station and Unit Connections Page 2 of 2 ...