Thermo King CRR-40 119, Руководство пользователя

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MP-3000a Controller
53
8. Replaceable sensors: Return air, left hand
supply air, right hand supply air, evaporator
coil (defrost), condenser coil, ambient air and
compressor discharge line temperature sensors
are field replaceable. Three (replaceable)
spare sensor receptacles are also provided for
USDA temperature recording.
9. Probe Test (see “Probe Test” in this chapter).
10. Defrost cycle control (see “Defrost System” in
this chapter).
11. Pretrip (PTI) test capability (see “PTI (Pretrip)
Test” in this chapter).
12. Function test capability (see “Function Test”
in this chapter).
13. Data recording capability (see “Data
Recording and Downloading Data” in this
chapter).
14. Electronic phase selection: The
microprocessor relay board monitors the
phase of the power supply to ensure proper
rotation of the condenser fan and evaporator
fans. The controller determines the correct
phase sequence for the compressor and
energizes the correct compressor contactor.
15. Power limit control (see “Power Limit Mode”
in this chapter)
16. Sequential component start-up control: A
sequence start of the required loads occurs
during initial start-up of the controller and
when a control mode shift requires the
compressors to start (see “Sequence of
Operation” in this chapter).
17. Compressor refrigerant injection cycle control
(see “Compressor Liquid Injection” in this
chapter).
18. Hourmeters: The controller has multiple
built-in hourmeters that can be accessed
through the Main Menu.
19. Manual emergency control capability. Manual
control settings in the control box allow the
unit to operate even in the event of a fatal
failure of the controller. Manual control offers
three operating functions: Heat, Defrost and
Cool (see “Manual Emergency Mode
Operation” in this chapter).
20. Flash memory: Flash program memory allows
the application software to be updated without
replacing a EPROM chip on the controller.
Application software can be updated in the
field using a portable computer and a Loader
program. Consequently, the field installed
application software version may have a
different revision number and may include
control features not included in the original
factory installed software. If the operation of
your unit differs from the Sequence of
Operation described for the unit in this
manual, enter “Misc. Functions” in the Main
Menu to check that the program version is
correct (see “Menu Operating Instructions” in
this chapter).
21. Display menus: The controller contains an
extensive display menu that can be navigated
via keypad. The display menu is organized
into eight (8) Main Menus:
NOTE: The screens that display on the
controller are determined by the controller
model and the unit configuration setting. All
screens are NOT present on all units.
• Setpoint Menu: Menu screens in this
group are used to enter the temperature
setpoint and set the economy mode.
Setpoint menu option functions include:
set humidify or dehumidify operation,
enter humidity setpoint, set custom
airflow, set bulb mode, set AFAM
operation, set AFAM delay, set AFAM
rate, set O
2
Minimum and set CO
2
Maximum.
• Data Menu: Menu screens in this group
are used to display unit operating
information including sensor
temperatures, voltage, current and
frequency information.
• Alarm List Menu: Menu screens in this
group display a list of alarm code(s).
• Commands Menu: Menu screens in this
group are used to activate defrost, function
tests, pretrip (PTI) tests and manual
function test.