Eaton E02A, Руководство пользователя

Страница: 16 / 21

13
Maintenance
E02A INTEGRATED RACK TYPE AIR CONDITIONER
UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
Fault Possible cause Check or maintenance
External fan
doesn’t start
Terminal is loose Check whether the connecting terminal is loose.
Power failure Check the AC input power voltage, whether the voltage is in the range.
Fan blocking Check whether there is foreign matter blocking the fan.
No energy-saving/coolin g
requirement
Check the detected internal Temp. and the external fan status through the display interface.
Fan has abnormal
noise
Bearing wear Replace fan.
Fan impeller scrape other materials Check whether there is interference between cables and fan impeller.
Compressor
doesn’t start
Electrical connecting is loose Tighten the electrical connector.
Power is off Check the main power supply switch, and check whether the interface display ”Starting”.
Power failure Check the AC input power voltage, whether the voltage is in the range.
Compressor motor damaged Replace compressor
No cooling requirement Check the detected internal Temp. and the compressor status through the display interface.
Delayed start-up The delayed time of compressor interval stat-up is 3 minutes.
Poor cooling
efficiency
External cycle air flow is not
enough.
Clean the impurities existing in coil or air inlet.
High condensate
pressure
The condenser is clogged by dirt Clean the condenser.
The condenser fan does not work Refer to fault description: External fan doesn’t start.
The evaporator
freeze up
The internal fan is not running Refer to fault description: Internal fan doesn’t start.
The capillary temperature sensor
can not work
Check whether the connection is normal, if not, replace the capillary temperature sensor.
5.4 Charge refrigerant
Units sold outside mainland China do not contain refrigerant. Please refer to the following operations to charge
refrigerant on site.
5.5 Tools preparation
Table 5.1 Tools preparation
Tool Illustration Function
Screwdriver
•
Dedicated screwdriver is used to remove the anti-theft screws.
•
Flat-blade screwdriver is used to remove the connecting wire from the controller.
•
Phillips screwdriver is used to remove screws from other parts.
Diagonal pliers
Used to process cables on site and remove the fixed cable ties.
Portable vacuum pump For eye protection