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The air curtain monitors the fan speed,
power output and heatsink temperature. In
the event of a fault the red LED on the sec-
ondary PCB flashes:
The red LED flashes a number of times and
then pauses. The number of flashes de-
notes the fault.
The heater is equipped with electronic over
heat protection and also manually resetta-
ble over temperature cut-outs. There are
two cut-outs on each blower module on
the top of the heating element. The CA13
and CA15 heaters have four cut-outs in to-
tal and CA20 six cut-outs. In the unlikely
event of electronic failure, the mechanical
cut-outs will switch off power to the heating
element. In order to reset cut-outs, isolate
the heater from power and press small
plastic push button on the top of each cut-
out.
The cause of cut-outs operating should
be investigated before resetting.
When the air curtains are powered up in
standby mode, a green LED on the main
board shows that the 12V power supply is
working correctly:
When heat or cold blow is demanded the
secondary PCBs are powered. A second
LED on the main PCB shows that the second
12V power supply is working correctly:
A fault with the auxiliary power is indicated
by a flashing orange LED on the main PCB:
A green LED on the secondary PCBs shows
that they are receiving 12V power:
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Содержание ScreenZone CA1309S10
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