To Next Page
C
Crystal AguirreSep 10, 2025
What to do if my Swegon Air Handlers supply air fan is faulty?
- EEric MaxwellSep 12, 2025
If your Swegon Air Handlers unit reports a faulty supply air fan due to no speed signal from the fan, contact a service company.
What to do if my Swegon Air Handlers supply air fan is faulty?
If your Swegon Air Handlers unit reports a faulty supply air fan due to no speed signal from the fan, contact a service company.
What to do if Swegon Air Handlers have a contact fault?
If your Swegon Air Handlers unit displays a contact fault, it indicates that the control panel is not communicating with the ventilation unit. If the error continues, contact the service company.
What to do if there are disruptions to the function of the Swegon CASA W4 Smart Fan ventilation unit?
If you experience any disruptions to the function of your Swegon Fan ventilation unit, several actions can be taken. First, check the function of the air heater for both reheating and preheating. Next, make sure the circulation pump in the waterborne heating system is running and that the water supply to the ventilation unit’s heating coil is sufficiently hot. Service the ventilation unit and acknowledge the service reminder. If the error persists, it's recommended to contact a service company.
Only qualified personnel should carry out installation, configuration and commissioning.
Isolate unit from supply grid before performing electrical tests or work.
Ensure power is isolated before opening for service. Wait for fans to stop.
Unit has freeze protection, fan thermal overload, and electric air heater overload protection.
Install in space > +10°C, with drain. Avoid noise transfer to living areas.
Mount using an accessory wall mounting bracket on a reinforced wall.
Mount using an accessory ceiling mounting frame with threaded rods.
Mount panels using modular cables, up to 40m from the unit.
Set airflows using sizing curves and appropriate measurement equipment.
Set fan speeds for all modes (Away, Home, Boost) in commissioning mode.
Setting of Smart functions must be performed.
Select available functions from the "Smart functions" menu.
Controls ventilation based on CO₂ levels, requires CO₂ sensor.
Boosts ventilation based on humidity levels, requires humidity sensor.
Boosts ventilation variably according to indoor air quality, requires sensor.
Balances ventilation when cooker hood is used to improve fume extraction.
Enable DDC control for remote operation and temperature reduction.
Isolate power supply before opening for service. Wait for fans to stop.
Replace filters every six months; use only recommended Swegon filters.
Check heat exchanger condition, clean passages if clogged, do not damage fins.
Disruptions indicated by symbols; active alarms prevent standby mode.
Malfunctions may be caused by any system component or installation. Contact service if issues persist.
Presents fan performance curves for W4 and W4 Econo models.
Provides sound power levels emitted to supply, extract, and outdoor air ducts.
Explains control functions for accessories like fireplace switch, sensors, damper actuators.
Details DDC control, temperature control, and fan speed signals.
Control diagram for W4 model, including components and functions.
General
