17
GB
Unit with electrical heating
The electrical installation is made on the
top of the unit, fig.2. Control supply (230V~)
and power supply for heating (400V3~) are
connected to terminal block in the internal
connection boxes. 2-metre units require dual
power supplies.
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”.
See wiring diagrams.
Start-up (E)
When the unit is used for the first time or
after a long period of disuse, smoke or odour
may result from dust or dirt that has collected
on the element. This is completely normal
and disappears after a short time.
Connecting the water coil (W)
The installation must be carried out by an
authorised installer.
The water coil has copper tubes with
aluminium louvres 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 valve kits.
The water coil is connected on the upper
side of the unit with ø15 mm smooth copper
pipe with a suitable coupling or soldering.
The connections to the heating coil must be
equipped with shut off valves (not included)
to allow problem free removal. Water coil is
equipped with a drain valve.
A vent valve should be connected at a high
point in the pipe system. Air valves are not
included.
NOTE: Care must be taken when connecting
the pipes. Use a wrench or similar to hold the
air curtain connections to prevent straining
of the pipes and subsequent water leakage
during connection to water supply pipe-work.
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 control. Note that the air flow
direction and fan speed may need fine
adjustment depending on the loading of the
door.
Filter (W)
The water coil is protected against dirt and
blockage by an internal air filter which covers
the coil face.
Service, repairs and maintenance
For all service, repair and maintenance first
carry out the following
1. Disconnect the power supply.
2. The front hatch is removed by removing
the screws on the top of the unit and then
detach the bent edge at the bottom. (Fig.3)
3. After the service, repair and maintenance
reattach the front hatch. Place the hatch at
the lower edge with the bent edge and fasten
on top with screws.
Type
Output
[kW]
Voltage
[V]
Minimum
area
*1
[mm
2
]
Control
0
230V~
1,5
PL2510E08
8
400V3~ 2,5
PL2515E12
12
400V3~ 4
PL2520E16
16
400V3~ 6
