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QS is an axial fan designed to ensure air extraction in small/medium-sized rooms such as bathrooms, toilets
and kitchens. Suitable for air discharge directly to the outside or in the presence of short linear duct (less
than 1.5m). Wall, ceiling or window installation (fig. 1).
• Material: High quality, impact and UV-resistant ABS colour RAL 9010.
• Rear reinforcement ring to prevent spigot deformation during installation.
• High efficiency aerodynamic fan with “winglet” blades to optimise quietness and efficiency.
• Single phase induction motor with integral thermal protection.
• Motor mounted on high quality sleeve bearings.
• BB version (on request): motor mounted on ball bearings that guarantee a longer product life cycle (30,000h)
and suitable for cold climates.
• The fan is double insulated: no earth connection is required.
• Suitable for continuous or intermittent operation.
• IPX4 degree of protection.
• Power supply 220V to 240V
~
50/60Hz.
is essential to ensure adequate air intake, to ensure good combustion and proper
equipment operation.
• Install the product so that the impeller is not accessible from the air outlet side as
verified by contact with the Test Finger (test probe “B” of the norm EN61032) in
compliance with the current safety regulations.
• Ceiling installation
In order to guarantee the IPX4 degree of protection against moisture in case of
ceiling installation, use the appropriate ceiling mount kit, which is not included. Use
only the rear entry hole for supply cables. If there is a possibility of condensation
along the air discharge duct, provide a drainage system to prevent condensation
from discharging into the environment through the fan.
Attention: do not mount the product on the ceiling without this kit.
• Window installation
In case of window installation it is necessary to use the appropriate window kit,
which is not included.
Attention: do not mount the product on the window without this kit.
INTRODUCTION
TECHNICAL SPECIFICATIONS
STANDARD
The fan is operated using a separate ON/OFF switch or via a light switch (fig. 12A).
WITH TIMER (over-run)
The fan is provided with a timer circuit which is adjustable from aprox. 1 minute to 25 minutes via trimmer
(fig. 13B).
Operation: connected according to the diagram in fig. 12B, after the light is switched on, the fan activates
with a delay of max 1.5 seconds. After the light is switched off, the fan continues to function for a pre-set
period of time.
WITH HUMIDISTAT & TIMER
The fan is equipped with a humidity detector, whose threshold is adjustable from 50% to 95% Relative
Humidity, and with a timer which is adjustable from aprox. 1 minute to 25 minutes via corresponding trimmer
(fig. 13C).
Turn the trimmer HY completely clockwise and the humidistat function is deactivated.
Automatic humidistat operation: connected according to the diagram in fig. 12C, when the percentage of
Relative Humidity exceeds the pre-set intervention threshold, the fan starts up automatically. When the
VERSIONS
