What to do if the SystemAir Fan unit cannot be controlled?
If the SystemAir Fan unit cannot be controlled, and the control functions seem stuck, try these steps: First, reset the control functions by removing the main power supply plug for 20-30 seconds. If that doesn't work, check the modular contact connection between the control panel and the main print card to ensure they are properly connected.
Why is there reduced airflow in my SystemAir Fan?
If you experience reduced airflow from your SystemAir Fan, there are several things you can check: * Check the display for any alarms. * Verify the fan speed setting in the control panel. * Check the week program settings. * Ensure that none of the digital inputs 1–3 (DI 1–3) are active and set to off. * Inspect the filters to see if they need changing. * Check the diffuser/louver openings for blockages and clean if required. * Inspect the fans and heat exchange block, cleaning if necessary. * Ensure that the building's air intake and roof unit (exhaust) are not clogged. * Examine visible duct runs for damage or buildup of dust/pollution.
How to troubleshoot SystemAir SAVE VTR 300/B Fan that does not start?
If your SystemAir Fans do not start, follow these steps: 1. Check the display for any alarms. 2. Check the fuse for the main power supply in the building's distribution box and ensure all quick connectors are properly connected in the unit, including those for supply and extract air fans. 3. Verify that the week program is in ON mode, as it might be in OFF mode with the fan speed set to OFF. 4. Check if any of the digital inputs 1–3 (DI 1–3) are active and set to off, as this could force one or both fans to stop, depending on the setup.
Why is the supply air temperature low in my SystemAir SAVE VTR 300/B?
If the supply air temperature from your SystemAir Fan is low, consider the following checks: 1. Check the display for alarms. 2. Verify the set supply air temperature in the control panel. 3. Check the analogue inputs in the service menu to ensure the temperature sensors are working correctly. 4. Check if the overheat protection thermostat is still active; if so, reset it by pressing the reset button. 5. Check if digital input 4 (DI 4) is set to off, as this would switch off the electrical re-heater battery. 6. Check if the extract filter needs to be changed. 7. Consider whether an electrical pre-heating battery is necessary for very cold outdoor conditions. 8. Check the balance between the supply and extract air.
How to reduce noise and vibrations from SystemAir SAVE VTR 300/B?
To address noise or vibrations coming from your SystemAir Fan, you can try the following: 1. Clean the fan impellers. 2. Ensure that the screws holding the fans are tightened. 3. Verify that the anti-vibration pads are fitted at the bottom of the unit.
What does it mean when the SystemAir Fan displays a 'Fan' alarm?
The alarm is displayed in the control panel. Check that quick connectors are connected for the both fans. Contact your installation company or place of purchase.
What to do if SystemAir SAVE VTR 300/B shows EMT/Frost alarm?
A triggered frost protection alarm results in the following: * Both fans stop. * Outdoor and exhaust air dampers closed. * Water valve opens completely (10 V signal goes out to the actuator). The unit will restart once the water temperature reaches +5°C above the set frost protection temperature. A triggered over heat protection gives an alarm in the control panel. Reset by pushing the reset button. See chapter 9.3.7. If the problem continues contact your installation company or place of purchase.
What does it mean when my SystemAir Fan displays a 'Rotor' alarm?
The alarm is displayed in the control panel. • If the rotating heat exchanger has stopped. Check the rotor belt. See chapter 9.5 • If the heat exchanger is still rotating, check that the quick connector for the sensor is connected and that there is an air gap of 5-10mm between the sensor and the magnet. Adjust the gap if necessary. If the alarm persists, the rotor sensor may be faulty. Contact your installation company or place of purchase.
What should I do if my SystemAir SAVE VTR 300/B Fan shows a 'PbFail' alarm?
The alarm is displayed in the control panel. The heater will not be activated. For triggered ET2, wait 10–15 min. If the error remains, contact your installation company or place of purchase.
What should I do if the SystemAir SAVE VTR 300/B shows a 'Filter' alarm?
The alarm is displayed in the control panel. Change filter according to instructions in the user guide.
General| Airflow | up to 300 m³/h |
|---|---|
| Fan type | Centrifugal |
| Supply voltage | 230V |
| Frequency | 50 Hz |
| Filter class | ePM1 55% (F7) |
| Heat exchanger type | Counterflow |
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