Thermo King CRR-40 119, Руководство пользователя

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MP-3000a Controller
83
Manual Function Test
The Manual Function Test menu allows
technicians to perform specific diagnostic tests on
individual components or turn several
components on at the same time to perform a
system test.
NOTE: When the Manual Function Test menu
is entered, the UNIT STOPS. A technician can
then select the control circuit or component to be
checked/tested from the items shown in the
menu.
With the unit On/Off switch ON and the LCD
display showing the standard display (setpoint):
1. Press F3 key to enter the menu list.
Repeatedly press F2 key to scroll through
Main Menu until “COMMANDS” appears in
LCD display.
2. Press F4 key to access the Commands menu.
The first command in the submenu (Defrost)
appears in the LCD display.
3. Press F2 or F3 key to scroll to Manual
Function Test.
4. Press F4 key to enter the Manual Function
Test: “CONDENSER OFF” appears in the
LCD display.
5. To test a unit component:
a. Press F2 or F3 key to scroll to desired
component test:
• Condenser
• Sensor Check Low
• Sensor Check
• Zero Current
• Heat
• AFAM Close
• AFAM Open
• Dehumidity Valve (pre 2002)
• Injection Valve
• Capacity 100%
• Capacity 50%
• Capacity 25%
• Compressor
• Sensor Checks (Probe Test): Operates
high speed evaporator fans only. After 5
minutes, check the temperatures of the left
and right hand supply sensors, return
sensor and defrost sensor. Temperatures
should be approximately equal.
F1.06 Compressor
Test Activated
9.2A 9.1A 9.2A
With condenser fan ON and compressor ON, Amp
draw is measured and compared to voltage.
Evaporator temperature and condenser coil
temperature are measured and stored. If
compressor has been OFF for last 18 hours (less
than 30 seconds ON), a compressor sequence start
occurs.
06, 07 14 Seconds
F1.07 Heat Test
Activated
5.2A 5.1A 5.2A
Amp draw is measured and compared to voltage:
4.4 Amps approx. at 400V
5.1 Amps approx. at 460V
10, 11 10 Seconds
F1.08 Injection Valve
Test Activated
0.1A 0.0A 0.1A
Liquid Injection valve is turned ON for 2 seconds,
OFF for 2 seconds and ON for 2 seconds to verify
valve operation
None 6 Seconds
F1.09 Humidify Valve
Test Activated
0.1A 0.0A 0.1A
Dehumidify valve is turned ON for 2 seconds, OFF
for 2 seconds and ON for 2 seconds to verify valve
operation Function Test log ends. Alarms (if any)
are cleared from data logger. However, alarms (if
any) remain in alarm list as not active until
acknowledged.
None 6 Seconds
CRR Function Test