Vortice VORT HR 550 AVEL, Instruction Booklet

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18
By-pass operation (free-cooling)
The free-cooling function is enabled when the machine is turned on in summer mode; in winter operation and in STD-BY
or OFF, the digital output configured as free-cooling damper will always be OFF.
With default parameters the free-cooling damper management takes place as described below:
- if the temperature detected by the recovery probe - outside air temperature > 5°, The Free - cooling is enabled ( free-
cooling damper activated)
- if the temperature detected by the recovery probe - outside air temperature < 2°, The Free - cooling is disabled (free-
cooling damper deactivated)
Frost protection operation
The frost protection function is enabled if the manchine is working in Winter mode; the probe used for this function is the
exhaust probe.
When the temperature drops below 0° , the flow rate of the supply fan will be reduced by one step (if it was speed 2 it will
be forced to speed 1).
When the exhaust temperature rises above 5° the fans will go back to the manually selected speed.
The frost protection function will persist for at least 5 minutes.
Filter alarm
If the fans are working , the counting operation for filter alarm is active ; after 2000 hours of fan working, the controller will
signal the need to clean filters without blocking the fans.
If the alarm is not resetted after 48 hours from the reporting , the unit will also block the operation of the fans.
Alarms
Generality
In case of problems or failures, take note of any error code appeared on the display of the electronic control unit or the re-
mote control, make a note of the model and the serial number of unit you have (written on the nameplate attached on the
side of unit) and contact an autorized Vortice assistance center.
Problems without error indication on display
PROBLEM CAUSE REMEDIES
The fans are not active
- Power supply is not connected.
- The fan speed control device is not wor-
king.
- Incorrect electrical connections
-
Fans are in thermal protection
-
Verify the unit power supply connection
- Check that the fan is not overheated and in
thermal protection,
Air flow rate or pressure in-
sufficient.
- Filters clogged
- Fan speed insufficient
- Tubes or heat exchanger clogged
-
Clean the filters
- Increase the fan speed
- Clean the tubes or heat exchanger
Insufficient efficiency of the
exchanger .
- Clogged exchanger fins - Clean the surfaces of the exchanger
Excessive vibration and
noise
- Incorrect unit installation
- Incorrect piping installation
- Fan impeller unbalance
- Check brackets and fixing of the unit
- Check brackets and fixing of the pipings
- Verify the status of fan impellers
Water leakage from the unit
- Drainage clogged
- Siphon not installed correctly - Clean the drainage
- Check the correct siphon installation
ENGLISH