2
ACR35
Assembly and operating instructions
Safety
• For all installations of electrically heated products
should a residual current circuit breaker 300 mA for
re 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!
• e unit must not be fully or partially covered with
clothing, or similar materials, as overheating can result
in a re risk! (E)
• e 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/o the appliance, provided that it has
been placed or installed in its intended normal opera-
ting position and they have been giving supervision 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.
Technical data is on p.19.
General instructions
Read these instructions carefully before installation and
use. Keep this manual for future reference.
e guarantee is only valid if the units are used in the
manner intended by the manufacturer and in accordance
with the VEAB mounting and operating instructions.
Application area
e ermo zone ACR35 air curtain unit is supplied
with electrical heating or hot water coil and is intended
for installation above entrances and smaller doors up to
3.5 metres in height.
ACR35 is recessed in false ceilings above entrances.
Protection class above false ceiling: IP44, below false
ceiling: IP20
Operation
Air is drawn in from underneath and blown out down-
wards towards the entrance so that it shields the door
opening and minimises heat loss. To get the best curtain
eect the unit must extend the full width of the door
opening.
e grille for directing exhaust air is adjustable and is
normally angled outwards to achieve the best protection
against incoming cold air.
e air speed is adjusted to the desired airow.
e eciency of the air curtain(s) depends on the air
temperature, pressure dierences across the doorway and
any wind pressure.
NOTE! Negative pressure in the building considerably
reduces the eciency of the air curtain. e ventilation should
therefore be balanced!
Installation
e air curtain unit is installed horizontally with the
supply air grille facing downwards as close to the door as
possible, concealed in the false ceiling. e only visible
part of the unit is the underside that is level with the
ceiling.
For the protection of wider doorways, several units can
be mounted next to each other.
Ensure that the service hatch is accessible and can be
fully opened.
Mounting on threaded bars inside unit.
1. e mounting brackets (4x) are xed to the unit
during transport. Loosen them and screw them into
place inside the unit in the intended holes.
2. Hang up on threaded bars (M8) according to gure
2b (not included). Note that the brackets are at
dierent heights and threaded rods shall be of
dierent lengths.
3. Adjust the height using the lower nut so that the
frame is on the level of the ceiling. Lock using the
upper nut.
