![background image](http://html.mh-extra.com/html/thermo-king/crr-40-119/crr-40-119_manual_1104388026.webp)
Specifications
26
Controller
Temperature Controller:
Type
MPC2000ID or MP-3000a microprocessor with
programming key-pad, mode indicators, LED display and
LCD display for displaying unit operating and cargo
information.
Setpoint Range -29.0 to +29.0 C (-20.2 to +84.2 F)
Digital Temperature Display -60.0 to +80.0 C (-76.0 to +176.0 F)
Controller Software (Original Equipment):
Version
See controller identification decal
Defrost Initiation: Evaporator Coil Sensor
Manual Switch or Demand Defrost Initiation: Coil must be
below 18 C (65 F). Defrost cycle starts when technician or
controller request defrost initiation.
-Timed Defrost Initiation: Coil must be below 10 C (50 F).
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:
-Temperature difference between the return air sensor
and defrost (evaporator coil) sensor is too large for 90
minutes.
-Temperature difference between the left hand and right
hand supply air sensors is too large and unit has operated
for more than 90 minutes since last defrost.
-Temperature difference between the supply air sensors
and return air sensor is too large.
Defrost Timer: Chill Mode*
Supply Temperature at 5.1 C (41.2 F) or Above: Every 8
hours of compressor operation.
- Supply Temperature at 5.0 C (41.0 F) or Below: Every
2.5 hours of compressor operation. Defrost interval
increases 0.5 hours each timed defrost interval. Defrost
synchronization creates step intervals of 3, 4, 4, 5, 5, 6, 6
and 7 hours. Maximum time interval in chilled mode is 7
hours.
Defrost Timer: Frozen Mode*
Every 8 hours of compressor operation. Defrost interval
increases 2 hours each timed defrost interval. Maximum
time interval in frozen mode is 24 hours.
Defrost Timer Reset
Defrost timer resets if the unit is Off more than 12 hours,
setpoint is changed more than 5 C (9 F) or PTI Pretrip test
occurs.
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...