Windhager FireWIN - Combustion Air; Operating with Room Air; (Combustion Air Supply from the Installation Room or Adjacent Room); Operating Independently of the Room Air

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2. For the Installer
2.3.1 Operating with room air:
(Combustion air supply from the installation room or adjacent room)
Always ensure there is a sufficient combustion air supply (no windows and doors that provide a complete air seal).
Combustion air supply from a well ventilated adjacent room via an air intake pipe:
The combustion air is carried along an air intake pipe from a well ventilated adjacent room (e.g. stairwell) to the
FireWIN. This avoids the induction noise in the installation room during operation. The accessory FIRE 024 is also
required for this variant. The air supply is carried in commercially available plastic pipes Ø 75 mm. The maximum
induction length is 9 m, each 90° bend reduces the length by 1 m.
Combustion air supply directly from the installation room:
The combustion air is drawn directly by the device from the installation room, therefore the installation room
has to be adequately ventilated.
2.3 Combustion air
An adequate supply of combustion air is absolutely essential. The combustion air must be free from pollutants
(gases, vapours and dusts), otherwise malfunctions and increased wear (e.g. corrosion) may occur.The following
combustion air flow is required for operation at max. heat output:
FireWIN 90 (9 kW): approx. 20 m
3
/h
FireWIN 120 (12 kW): approx. 26 m
3
/h
Information!
Malfunctions or complaints occasioned by inadequate combustion air will not be covered by the
guarantee!
There are various possible ways of supplying the combustion air:
– Operating with room air
(Combustion air supply from the installation room or adjacent room)
– Operating independently of the room air
(Combustion air supply from ventilation draught in the chimney)
Negative pressures in the installation/induction room with point 2.3.1 Operating with room air are not permitted.
The function and safety of FireWIN is affected when combining with room ventilation systems and combustion air
supply from the installation room or adjacent room. Room ventilation systems must switch off automatically when
the negative pressure in the device is more than 4 Pa below the external pressure. Special ventilation systems are
available for controlled living area ventilation in combination with solid fuel systems – refer to information provided
by the manufacturers of ventilation systems.
If ventilation systems (e.g. extractor hoods or pneumatic pumping systems, etc.), we recommend routing the combu-
stion air according to point 2.3.2 Operating independently of the room air. This means it is possible to decouple the
combustion air from the air conditions in the installation room to a large extent.
In addition, the device is equipped as standard with a pressure monitoring device in the fire box in order to guaran-
tee safe operation of the device.
Note!
There may be an induction noise from the air supply induction point (air opening in the device),
depending on the modulation. The noise can be transferred outside or into an adjacent room by
relocating the air supply induction point.