Thermozone AC 500
7
GB
General Instructions
Read these instructions carefully before
installation and use. Keep this manual for
future reference.
The guarantee is only valid if the units
are used in the manner intended by the
manufacturer and in accordance with the
Frico mounting and operating instructions.
Are of use
The Frico Thermozone AC 500 is an air
curtain intended to be installed above
industrial- and warehouse doors of 3,0 —6,0
meters height. The air curtains efficiency is
depending on the load of the door.
Protection class IP24.
Function
The air intake is positioned at the top of the
unit and blown with high velocity through a
honeycomb lattice which results in a strong
and laminar air stream. The air curtain
consists of 2 or 3 powerful diagonal fans
which are mounted in an air stream channel.
The housing is made of galvanised steel
covered with grey enamel. The air stream
protects the opening and minimises hot/cold
leakage through the open door. Insects, dust
and exhaust fumes are also prevented from
entering the building. The deflectors that
are fitted on both sides of the outlet can be
used to direct the air stream up to ±15°. It
is always better to tilt the complete unit if
possible. The airflow will be controlled by a
fan regulator, placed in a separate box.
NB! under-pressure in the building will
significantly reduce the effectiveness of the
air curtain. Ventilation ought to be balanced.
Mounting
Thermozone air curtains are in general
mounted on the inside of the door and as
close to the opening as possible. When they
are supposed to protect a cold store they
should be mounted on the warm side of the
opening. To cover the entire opening the units
must be placed as close as possible to each
other. If possible tilt the units towards the
opening.
Instruction for installation and use
Suspension brackets are included, with
which the air curtain can be hung from
overhead beams / ceiling or with which they
can be screwed to the wall.
A) Mounting on overhead beams or in the
ceiling
1. A heavy-duty beam is to be mounted in a
suitable position above and along the door opening.
The air curtains can also be mounted to the ceiling,
however it may then be difficulties to access the
connection box.
2. Fit the suspension brackets on the ends of the
air curtain. (Fig 1.)
3. Check the c-c distance between the suspension
bracket’s fixing holes. Measure and drill holes
(for 10 mm bolts) in the appropriate positions on
the beam/ceiling
4. Lift up the air curtains one by one and bolt in
position. Tilt the unit outwards against the door
and tighten the screws. (Fig 2.)
5. Mount the fan regulator in an appropriate place
on the wall.
6. Carry out the electrical connection.
B) Mounting against a wall
1. Fit the suspension brackets on the rear side
of the air curtain. (fig 3).
2. Check the c-c distance between the
suspension bracket’s fixing holes. Measure
and drill holes (for 10 mm bolts) in the
appropriate positions on the wall.
3. Lift up the air curtains one by one and
hang the key holes of the brackets on the
bolts. Secure using 6 mm screws so that the
units cannot be unhooked again. Tilt the
unit outwards against the door and tighten
the bolts.
4. Mount the fan regulator in an appropriate
place on the wall.
5. Carry out the electrical connection.
Electrical installation
The electrical installation must be carried
out according to existing regulations and by
an authorised electrician. The unit must be
preceded by an all-pole switch. There are
many different ways to regulate the fan speed.
