Industrial Air Curtain
4 Solving problems
Version 2.1, English (27-10-2008)
21
4
Solving
problems
4.1.1
General
If the air curtain does not work, or not prop-
erly, perform the checks mentioned below.
If that does not help, there may be a defect.
In that case, alert the installer.
4.1.2
Unit does not discharge any air
1
Check whether the air curtain has been
switched on by the control unit: see the
control unit documentation.
2
Check if the unit is not disabled by an
external control component (door switch
or room thermostat).
3
Check if mains power is supplied.
4
Reset the thermal protector of the fans
to: see the control unit documentation.
4.1.3
Unit discharges little air
1
Remove obstacles in front of intake and
discharge openings.
2
Check the heat exchanger for contami-
nation. Clean it if necessary.
3
Check the direction of rotation of the
fans: see section 2.10.
4.1.4
Unit does not heat, or too little
1
When facing draught: select a higher fan
speed using the operation switch.
2
Does the unit blow out enough air? If not,
perform the checks in sections 4.1.2 and
4.1.3.
For water-heated units:
3
Check the operation of the CH system.
For electrically heated units:
4
Check whether the isolating switch on all
units is set to position 1.
5
Check if mains power is supplied to each
unit.
6
Reset the high-limit thermostat: see the
control unit documentation
7
Check the control knob
1
in the unit: it
must always be set to 60° C.
