Startup Guide; Service Guide; Troubleshooting - mundoclima MUC-W9 Serie Manual De Instalación Y Usuario

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 maximum allowable value.

6 SERVICE GUIDE

Ask a professional technician to repair the unit in case it goes wrong.
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.
As a result of a certain situation, the unit has caused damage, an electric shock or a fire. Please contact the agent.
The system maintenance must be carried out by qualified maintenance personnel.
Error
If 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.
If a centralized controller is used, the unit number is
displayed on the user interface, and the operating
indicator is flickering, and an error code is shown on the
screen as well.
Except as noted above, if the above faults are not typical and the unit still fails, follow the steps below.
If the system does not run at all.
The system is running but there is insufficient cooling or
heating.
WARNING
Error
44
Measures
Turn off the main power switch.
Turn off the power supply.
Notify the installation personnel and report the
error code.
Measures
Check whether there is a power failure. Wait for
the power supply to be restored. If a power failure
occurs when the unit is still running, the system
will restart automatically once the power is
restored.
Check whether the air outlet is blocked by any
obstacles.
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 cooling mode is in operation.
Check whether the heat source of the room is too
high.
Check whether there is direct sunlight into the
room. Use curtains or blinds.
Check whether the angle of air flow is appropriate.