3
INSTALLATION
Position the unit, taking into consideration the position of the rooms to be ventilated, the exhaust position
and the electrical services. Ensure there is adequate access for installation and maintenance.
If the unit is sited in the heated void of the dwelling a condensate drain should not be necessary.
When sited in a cold loft, consideration should be given to fitment of a condensate drain. Alternatively the
unit and ducting can be externally insulated to minimize condensation within the units housing.
To reduce the system resistance in your duct system, and therefore lower the speed, power consumption
and noise of the fan, follow these guidelines:
1.1.
Keep the length of duct runs to a minimum, particularly the exhaust duct run.
1.2.
If you need to use flexible ducting, make sure that it is fully extended and not crushed,
sagging or torn.
1.3.
Try to minimize the use of diffusers/valves by having similar length duct runs to the inlets.
1.4.
The bend radius (measured to the inside of the bend), should be at least 1x the duct
diameter.
1.5.
Avoid having any bends, filters or other obstructions within 250mm of the fan inlets and
outlet.
Securely mount the unit through the mounting holes on the casing using appropriate fixings (not supplied)
for the mounting substrate. Fixings to be capable of securing 4x the weight of the unit. Unit weight: 4.1kg.
Anti-vibration mounts, acoustic mats or rubber bushes can also be used.
Mounting point dimensions and installation example shown below:
To maintain the IPX2 rating of the unit, the unit must not be
mounted with the cover removal slots facing upwards,
or at an angle where they are visible from above.
All other orientations are acceptable.
