Operating Instructions
49
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.
5. Check the direction of the condenser airflow
(see “Condenser Fan and Evaporator Fan
Rotation” in the Electrical Maintenance
chapter of this manual).
6. Check direction of evaporator airflow (see
“Condenser Fan and Evaporator Fan
Rotation” in Electrical Maintenance chapter of
this manual).
7. Allow the unit to operate one-half hour before
loading. This will remove residual container
heat and moisture, and pre-cool the container
interior.
8. Perform a Pretrip (PTI) Test and check unit
modes while the unit pre-cools:
NOTE: Correct all existing alarm conditions
and clear the alarm codes before performing
a PTI test. The controller will automatically
clear all existing alarms before beginning
the PTI test.
•
Press F2 key to enter Main Menu.
•
Press F2 or F3 key to scroll up or down in
menu to “COMMANDS”.
•
Press F4 key to access COMMANDS
menu.
•
Press F2 or F3 key to scroll up or down to
“PTI”.
•
Press F4 to start the PTI (Pretrip) Test.
•
The controller then performs the Pretrip
Test.
•
Observe the unit for proper operation and
functions during pretrip test.LCD display
shows PTI Test currently being performed.
PTI test ends automatically. Press any key
on the controller to return the unit to
normal operation.
•
If an operating problem occurs during the
Pretrip Test, the Alarm LED will turn ON
and FLASH. An “E” may also appear in
the right side of the LED display. View
and correct any alarm conditions. Then
clear (acknowledge) the Alarm Code(s)
and repeat the PTI Test.
NOTE: Clear the Alarm codes ONLY after
the alarm codes are documented and
problems repaired. A permanent record of
the alarm codes remains stored in the
datalogger memory for retrieval via DRU-II
or Smart Sponge handheld data retriever.
9. Set the fresh air vent to the desired air
exchange rate.
10. Optional: Operate the humidity system (see
“Changing the Humidity Mode Setting” under
“Setpoint Menu” on page 4-15). Verify that
the air compressor operates and that water is
drawn into the atomizing nozzle and injected
into the return air stream.
11. Stop the unit by moving the On/Off switch to
the OFF position.
Starting the Unit and Adjusting the
Controller Setpoint
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 Condenser Fan On/Off switch to
FAN AIR position.
CAUTION: The PTI test should only be
performed on an empty container!
CAUTION: Supply power connections
from the 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.
Содержание CRR-40 119
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Страница 16: ...Safety Precautions 16...
Страница 18: ...Service Guide 18...
Страница 20: ...Model Features 20...
Страница 32: ...Specifications 32...
Страница 120: ...MP 3000a Controller 120...
Страница 160: ...Wiring and Schematic Diagrams Index 160...
Страница 161: ...161 MPC2000 Wiring Schematic...
Страница 162: ...162 MPC2000 High Voltage Wiring Diagram...
Страница 163: ...163 MPC2000 Low Voltage Wiring Diagram...
Страница 164: ...164 MPC2000 WCC Wiring Schematic...