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1.10 Indoor fan
Centrifugal fan with forward-curved blades.
•
100/125 models: A double-turbine fan with a shared shaft, driven by a single motor.
•
150/175 models: Two independent fans, each with their motor.
Both cases have BX-type pulley and belt transmission. The motor pulley has a diameter that can be
adjusted in ½-turn intervals.
Motor protection rating IP55 and insulation class F.
1.10.1 Features table
Model
Fan kit
Standard
100
Standard
125
Standard
150
Standard
175
1.10.2 Indoor fan output tables
For units with 0% outdoor air and 100% return air, dry indoor coil, and standard G4 filters.
C A U T I O N
Before consulting the tables, add secure drops to the pressure required for the installation due to:
•
Accessories included in the unit, when appropriate. See
on page 27
The motor pulley comes adjusted to an opening of four turns. See
by specialised
personnel, see on page 33 for the belt adjustment and tightening procedure.
C A U T I O N
•
Before commissioning the installation, but after balancing the air distribution in the building, the supply
air flow should be checked.
•
With clean filters the indoor fan should not exceed a 200 Pa suction vacuum.
Motor pulley
Motor (1)
(adjustable)
Type of
∅ pulley
∅ shaft
kW
casing
(mm)
(mm)
Pressure drop in
Installation manual
Indoor fan 1.10
Fan
pulley
(fixed)
∅ pulley
∅ shaft
Length
(mm)
(mm)
(mm)
options/accessories, see
Regular maintenance tasks performed
1
Belt
Ref.
Qty.
21
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