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Alarm
Steps
NO.
124
CHECK DEFROST TERMINATION 1 SENSOR (DTT)
TRIGGER-ON: Sensor is not within the range of -47 to +70°C (-53 to +158°F).
UNIT CONTROL: Engine and standby:
If Alarm 122 is not active: Alarm and RAT will be used for defrost initiation and a heat defrost will end
after 10 minutes.
If Alarms 122 and 123 are also both active: alarm and defrost will not be allowed.
RESET CONDITION: Auto Reset when sensor is in range or, alarm may be manually reset via
keypad or by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (refer to reset condition above). Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
Check Sensor Wiring
1
a. Inspect sensor & connector pins &
terminals. (See wiring schematic
Section 10.)
b. Energize sensor circuit.
c. Check for voltage at the sensor
plug between pins A (+) and B
(ground).
2
Check Sensor
a. Check Sensor resistance. (Refer to
Note 3 page 7-2.)
3
Check Circuits With Another Sensor
a. Substitute known good sensor and
clear alarm. Start unit and run for
30 seconds.
b. Check to see if alarm re-occurs.
62-61753-21
ALARM / CAUSE
CORRECTIVE ACTION
No physical damage to sensor.
No damage, moisture or corroded pins in plug.
Refer to Note 2 Page 7-2.
Voltage should be approximately 12 VDC.
Refer to Section 8.7.7 for complete table of tempera-
tures and resistance values.
Alarm should not come on. (Install new sensor if nec-
essary.)
7-62
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Troubleshooting
Need help?
Do you have a question about the VECTOR 1550 Series and is the answer not in the manual?
Questions and answers
Как это работает
The Carrier VECTOR 1550 Series is a hybrid diesel/electric refrigeration system designed for insulated trailers. It maintains cargo temperatures within precise limits. The unit operates using electrical power and has a generator directly bolted to the engine.
Key components and functions include:
- Generator (GEN): Supplies electrical power for operation.
- Engine Coolant Temperature Sensor (ENCT): Monitors engine coolant temperature and provides data for system control.
- Unloader Solenoid Valve (USV): Opens during low load periods to bypass compressed gas, balancing compressor capacity and reducing power consumption.
- Liquid Injection Solenoid Valve (LIV): Opens during high compressor discharge temperatures to inject refrigerant and cool the compressor.
- Condenser Coil: Helps dissipate heat from the refrigeration cycle.
The unit’s microprocessor controls the refrigeration operation, including temperature settings and supply air limits.
This answer is automatically generated
Куда подключать интерфейс технического специалиста
The technician interface on the Carrier VECTOR 1550 Series is connected using the Technician Interface Connector Assembly (P/N 22-60661-00). This allows the technician to access the Technicians Configuration/Test Mode for changing configurations, testing unit components, and servicing the refrigeration system.
This answer is automatically generated
Hoe kan je een carrier maxima 1550 resetten
Как правильно поставить возврат или подачу воздуха на вектор 1550в теплое время на старт стоп