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
Motor (1)
Motor pulley
(adjustable)
Fan
pulley
(fixed)
Belt
kW
Type of
casing
∅ pulley
(mm)
∅ shaft
(mm)
∅ pulley
(mm)
∅ shaft
(mm)
Length
(mm)
Ref.
Qty.
100
Standard
125
Standard
150
Standard
175
Standard
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
Pressure drop in options/accessories
, see
on page 27
The motor pulley comes adjusted to an opening of four turns. See
Regular maintenance tasks performed
by specialised personnel
, see on page 33for 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.
Installation manual
1
Indoor fan 1.10
21
