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2.55
ProtecTor
A new dimension in door screening
Installation and operating manual
44
10.4 Post-commissioning checks
Perform the following checks after commissioning the ProtecTor:
Are all the fans switched off by the thermal contact?
• To do so, disconnect a wire from terminal TK of the stage switch (Caution:
230 V control voltage!) All the fans should switch off immediately. The
standby indicator must go out on the stage switch.
• Reconnect the wire to terminal TK. The fans should not start up again.
• Reset the stage switch and switch it on again. The fans should restart.
• Briefly disconnect the connecting wires of all thermal contacts individually
to check that all thermal contacts are correctly wired.
Are the fans in all ProtecTor units running in the correct direction at
all switching stages?
The direction of rotation is indicated by the arrow. Make sure that the fan is
drawing in air. Swap two phases on the stage switch if all three-phase fans
are rotating in the wrong direction at all fan stages. Check the wiring of the
incorrectly rotating fans if individual fans are rotating in the wrong direction.
Are all the fans running smoothly or are grinding noises audible?
Determine the cause as soon as grinding noises become audible. Possible
causes are:
• a unit installed in too confined a space
• site dirt (e.g. pieces of paper) between the fan and heat exchanger
Is warm air discharged during (winter) operation?
Has the right switching stage and / or fan speed been selected to
meet demand with continuously variable control?
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