AR3500
GB
AR3500W: The unit is fitted with cable and
plug.
AR3500E: The unit is supplied through
cable glands on the side of the unit. For
units with electrical heating, power and
control should be supplied separately.
Control (230V~) and power supply for heat
(400V3~) should be connected to a terminal
block in the terminal box. The largest
cable diameter for the terminal block is
16 mm². The cable glands used must meet
the protection class requirements. In the
distribution board it is to be indicated that
”the air curtains can be supplied from more
than one connection”.
3. Close the service hatch and make sure that
the snap fixings lock properly.
See wiring diagrams.
Type
Output
[kW]
Voltage
[V]
Minimum
area
[mm
2
]
Manouver
0
230V~
1,5
AR3510E
9
400V3~
2,5
AR3515E
13,5
400V3~
4
AR3520E
18
400V3~
10
Start-up
Note! When using for the first time or when
starting up after a long period of disuse, a
small amount of smoke and a slight odour
may occur temporarily, which is completely
normal.
Connecting the water coil (AR3500W)
The installation must be carried out by an
authorised installer.
The water coil has copper tubes with
aluminium fins and is suitable for connection
to a closed water heating system. The heating
coil must not be connected to a mains
pressure water system or an open water
system.
Note that the unit shall be preceded by a
regulating valve, see Frico valve kit.
To access the connections (DN20, 3/4”,
inside thread) the service hatch and intake
grille must be opened. The water coil is
connected inside the unit through holes which
are made (during installation) on the upper
side or through the side of the unit, possible
places are marked with punch marks.
The connections to the heating coil must be
equipped with shut off valves to allow problem
free removal.
Adjustment of the air curtain and air flow
The direction and speed of the air flow should
be adjusted considering the load on the
opening. Pressure forces affect the air stream
and make it bend inwards into the premises
(when the premises are heated and the
outdoor air is cold).
The air stream should therefore be directed
outwards to withstand the load. Generally
speaking, the higher the load, the greater the
angle that is needed.
Basic setting fan speed
The fan speed when the door is open is set
using the speed control. Note that the air flow
direction and speed may need fine adjustment
depending on the loading of the door.
Filter (AR3500W)
The heat coil fin distance, in combination
with the hole diameter of the intake grille,
protects against dirt and blockage and makes
a separate filter unnecessary.
Service, repairs and maintenance
For all service, repair and maintenance first
carry out the following:
1. Disconnect the power supply.
2. The service hatch is opened by loosening
the snap fixings located on the down side
(turn 90°). See fig. 3.
3. After service, repairs and maintenance
close the service hatch and make sure that
the snap fixings lock properly.
Maintenance
Since fan motors and other components are
maintenance free, no maintenance other than
cleaning is necessary. The level of cleaning
can vary depending on local conditions.
Undertake cleaning at least twice a year. Inlet
and exhaust grilles, impeller and elements
can be vacuum cleaned or wiped using a
damp cloth. Use a brush when vacuuming
to prevent damaging sensitive parts. Avoid
the use of strong alkaline or acidic cleaning
agents.
