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5.6 Startup guide
Machine commissioning or first start-up must be performed by a professional.
Before startup, make sure that the installation and electrical connections are made in accordance with this Manual, and that no
unauthorized personnel is near the machine during operation.
1) Before starting the unit, make sure that:
The device is positioned correctly.
The water system's flow and piping are correct.
The water pipe is clean.
The air can flow normally.
The condensate water can flow normally to the drain outlet and the elbow.
The heat exchanger is clean.
The electrical connection is correct.
The connecting cable is secure.
The power supply meets requirements.
The motor works normally within the allowable value.
6 SERVICE GUIDE
Ask a professional technician to repair a faulty unit.
Make sure the power supply is disconnected during repair.
6.1 Troubleshooting
The warranty does not cover the damage caused by dismantling or cleaning of the internal components by unauthorized agents.
When any unusual situations arises (burning odour, etc.), stop the unit immediately and turn off the power.
If there is any damage, such as electric shock or fire, caused by the unit, contact your dealer.
The system maintenance must be carried out by qualified maintenance personnel.
A safety device, such as a fuse, circuit breaker or a leakage
circuit breaker is triggered frequently, or the ON/OFF switch is
not working properly.
The operating switch is not functioning normally.
When a centralized controller is used, the unit number is
displayed on the user interface, the operating indicator is
flickering, and an error code is shown on the screen as well.
If the error occurred does not fall within those described in the above table, follow the steps below.
The system does not run at all.
The system is running but there is insufficient cooling or
heating.
WARNING
Error
Error
Countermeasure
Turn off the main power switch.
Turn off the power supply.
Notify the installation personnel and report the
error code.
Countermeasure
Check whether there is a power failure. Wait for the
power supply to be restored. If a power failure occurs
during unit running, the system will restart
automatically once the power is restored.
Check whether the air outlet is blocked by any
obstacles.
If any, remove the obstacles.
Check whether the filter is blocked.
Check the temperature setting.
Check the fan speed settings on the user interface.
Check whether the doors and windows are open.
Close the doors and windows to shut out wind from the
external environment.
Check whether there are too many people in the room
when the unit is running in Cool mode.
Check whether there is too much heat dissipated from
any heat source in the room.
Check whether there is direct sunlight into the room.
Use curtains or blinds.
Check whether the angle of air flow is appropriate.
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