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TF6790_A_NOT_DXA230_EVOLUTION
Aereco S.A.
7.
TROUBLESHOOTING
Faults
Causes
Actions
Condensate leaks or water noise
in the heat exchanger
Poor condensate evacuation
Make sure the external pipes have been installed properly.
Siphon has to be full of water.
Poor condensate evacuation
(Using a lift pump)
Make sure it is correctly working according pump’s manual.
Low airflow levels at grilles
Network leaks
Inspect the aeraulic network and sealing.
Cold incoming air supply
Bypass open
- Make sure the bypass is in good condition and the motor is operating properly.
- Re-start the DXA Unit by disconnecting it during 30 seconds from power.
- Control filter clogging, and if necessary, replace them.
- Check with the synoptic tool all T°
Defrosting default
Supply ductwork insulation
- Make sure the airflow rate is not too low.
- Check the unobstructed passage of air in the defrosting
- Make sure ductwork are placed in a warm area or they are properly insulated.
The motors are not working
Power supply
Make sure the DXA Unit is connected to the main electrical board.
The motors are running too fast
Aeraulic network not connected
Connect the network and ckeck there is not spillages on it.
Pressure loss or major leakage on the
network
- Improve the network installation, use the recommended grilles and roof exhausts
- Be sure to respect the recommendations of installation
Too high number of extraction grille
Check the operating limits
Filters are clogged
Make sure filters have been changed when system asked for it.
Heat exchanger is frozen
(Using a defrosting)
- Make sure the defrosting is connected to the 2I2O module and to the main.
- Make sure the defrosting is taken into account in the parameters of the DXA Unit user's interface.
- Make sure the manual reset of the defrosting has not been triggered. In case it has been triggered,
check the unobstructed passage of the air near the defrosting before resetting the security.
Interface is turned off
- Disconnect the DXA Unit and wait 2 or 3 min before connecting it again (reset of the interface).
The system makes noise
of vibrations
The Unit is fixed in the wrong way
Make sure the system is fixed as explained in the recommendations of installation
How to reset the device ?
Configuration may be changed by
lauching the Wisard application
(parameters remain the same)
- To erase all parameters, proceed a resert in MAINTENANCE / SYSTEM PARAMETERS / RESET.
Then, launch the Wisard application. Parameters have to be set again (Pressure / T° set points,
durations, K factors, etc.)
