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General Instructions
Read these instructions carefully before
installation and use. Keep this manual for
future reference.
The product may only be used as set out in
the assembly and operating instructions. The
guarantee is only valid if the product is used
in the manner intended and in accordance
with the instructions.
Application area
AR3200C is a compact air curtain for recessed
mounting. The air curtain is available without
heat, with electrical heating and with water
heating. Recommended installation height for
ambient and electrically heated units is 3,2
metres and recommended installation height
for water heated unit is 2,8 metres. The air
curtain has an integrated control system and
can also be remote controlled.
Protection class for units with electrical
heating: IP20.
Protection class for units without heating and
units with water heating: IP21.
Operation
Air is drawn in from underneath and blown
out downwards so that it protects the door
opening and minimizes heat loss. To achieve
the optimum curtain effect the unit must
extend the full width of the opening.
The grille for directing exhaust air is
adjustable and is normally angled outwards to
achieve the best protection against incoming
air.
The efficiency of the air curtain depends
on the air temperature, pressure differences
across the doorway and any wind pressure.
NOTE! Negative pressure in the building
considerably reduces the efficiency of the air
curtain. The ventilation should therefore be
balanced.
Mounting
The air curtain is installed horizontally with
the supply air grille facing downwards as close
to the door as possible, concealed in the false
ceiling. The only visible part of the unit is
26
AR3200C
Assembly and operating instructions
the underside which is level with the ceiling.
The service hatch must be accessible, nothing
should prevent it being fully opened.
The unit is ready for suspension with
threaded bars on its outside. The threaded
bars can also be fixed on the inside of the
unit e.g. when mounted on a solid suspended
ceiling.
For the protection of wider doorways, several
units can be mounted next to each other.
Minimum distance from outlet to floor for
electrically heated units is 1800 mm.
Mounting on threaded bars outside the unit
1. The mounting brackets (4 or 6 pcs) are fixed
to the unit during transport. Slacken these,
turn them around and screw into place on the
unit according to fig. 1a.
2. Hang on threaded bars (M8) according to fig.
1b (accessory).
3. Adjust the height using the lower nut so that
the frame is in level wth the ceiling. Lock
using the upper nut.
Mounting on threaded bars inside the unit
1. The mounting brackets (4 or 6 pcs) are fixed
to the unit during transport. Loosen them
and screw them into place inside the unit
in the intended holes. In order to mount the
brackets, remove the service hatch, outlet
grille and covering plates. See pages 6-7.
2. Hang on threaded bars (M8) according to fig.
2b (accessory).
3. Adjust the height using the lower nut so that
the frame is in level wth the ceiling. Lock
using the upper nut.
Electrical installation
The installation, which should be preceded by
an omnipolar switch with a contact separation
of at least 3 mm, should only be wired by a
competent electrician and in accordance with
the latest edition of IEE wiring regulations.
The control system is pre-installed in the air
curtain.
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