Arden 4200
18
EN
Replacing the water coil (W)
1. Shut off the water supply to the unit.
2. Open the vent valve.
3. Open the drain valve.
4. When the water coil is empty, disconnect its
connections.
5. Remove the mounting screws securing the
coil in the unit and lift out.
6. Install the new coil in reverse order to the
above.
Draining the water coil (W)
The drain valve is on the underside of the coil
on the connector side. It can be accessed via
the service hatch.
Safety cut-out
All motors are equipped with an integrated
safety cut-out. This will operate, stopping the
air curtain should the motor temperature rise
excessively or the electronics fail or overheat.
The cut-out will automatically reset when the
motor temperature has returned to within the
motor’s operating limits. Failure or damage to
electronics components may require repair or
replacement of such components or the entire
product.
Fan replacement
1. Determine which of the fans is not
functioning.
2. Disconnect the cables from the relevant fan.
3. Remove the screws securing the fan and lift
the fan out.
4. Install the new fan as above in reverse order.
Replacing the electrical coil (E)
1. Mark and disconnect the cables to the
electric coil.
2. Remove the mounting screws securing the
electric coil in the unit and lift out.
3. Replace faulty electrical coil.
4. Install the new electric coil in reverse order to
the above.
Replacing the PC board
1. The PC board is located in the terminal box.
Fig. 4
2. Mark and disconnect the cables to the PC
board.
3. Remove the screws securing the board and
lift out.
4. Install the new PC board as above in reverse
order.
brush when vacuuming to prevent damaging
sensitive parts. Avoid the use of strong alkaline
or acidic cleaning agents.
Temperature control
Temperature control of FC maintains the
exhaust temperature. Should the temperature
exceed the preset value, the overheating alarm
will activate. For more information see the FC
manual.
Overheating
The air curtain unit with electrical heating is
equipped with an overheat protection. If it is
deployed due to overheating, reset as follows:
1. Disconnect the power supply with the isolator
switch.
2. Determine the cause of overheating and
rectify the fault.
3. Open the service hatch. Locate the red button
next to the terminal box inside the air curtain.
The 2 and 2.5 metre units are equipped with
two red buttons, one on the outside of each
terminal box.
4. Press the red button until a click is heard.
5. Reconnect the unit.
Troubleshooting
If the fans are not running or do not perform
properly, check the following:
• The power supply.
•
That the intake grille/filter is not dirty.
• That the motor's safety cut-out has not been
deployed.
• Functions and settings of the FC control
system, see the FC manual.
If there is no heat, check the following:
• Functions and settings of the FC control
system, see the FC manual.
For units with electrical heating, also check the
following:
• Power supply to electric heater coil; check
fuses and circuit-breaker (if any).
• That the overheat protection has not been
deployed.
