2
AC25
Operation
Air is drawn in at the top of the unit and blown out
downwards so that it shields the door opening and mi-
nimizes heat loss. To achieve the optimum curtain effect
the unit must extend the full width of the door opening.
The grille for directing exhaust air is adjustable and is
normally angled outwards to achieve the best protection
against incoming cold 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 unit is installed horizontally with the
supply air grille facing downwards as close to the door as
possible. Minimum distance from outlet to floor for elec-
trically heated units is 1800 mm. For other minimum
distances, see fig. 4.
Mounting with wall brackets (fig. 6)
1. Mount the brackets on the wall, see fig.6A and
dimension drawing fig.1. If the wall is uneven the
brackets must be compensated for this.
2. Hook on the unit at the lower edge of the brackets.
(Fig.6B-C)
3. Bend the top of the console over the unit and slide
the unit's screws along the rail into the slots on the
consoles, (Fig.6D). When the bracket is bent once,
it must be replaced if bent back more than 45 °.
4. Lock the nuts against the brackets. (Fig.6E)
Horizontal mounting on the ceiling
Threaded rods, hanging brackets and ceiling mounting
brackets for ceiling mounting are available as accessories,
see accessories pages and separate manuals.
Assembly and operating instructions
Safety
• For all installations of electrically heated products
should a residual current circuit breaker 300 mA for
fire protection be used.
• Keep the areas around the air intake and exhaust gril-
les free from possible obstructions!
• CAUTION! During operation the surfaces of the unit
can be hot!
• The unit must not be fully or partially covered with
clothing, or similar materials, as overheating can result
in a fire risk! (E)
• The appliance can be used by children, aged from 8
years and above, and by persons (children included)
with reduced physical, sensory, or mental capabilities,
or lack of experience and knowledge, if they have been
given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards
involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made
by children without supervision.
Children, of less than 3 years of age, should be kept
away unless continuously supervised.
Children, aged from 3 years and less than 8 years,
shall only switch on/off the appliance, provided that
it has been placed or installed in its intended normal
operating position and they have been giving supervi-
sion or instruction concerning use of the appliance in a
safe way and understand the hazards involved.
Children, aged from 3 years and less than 8 years,
shall not plug in, regulate and clean the appliance or
perform user maintenance.
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 inten-
ded and in accordance with the instructions.
Application area
The AC25 air curtain unit is supplied with electrical
heating or hot water heating. AC25 is intended for
installation heights up to 2.5 metres.
Protection class for units with electrical heating: IP20.
Protection class for units with water heating: IP21.
