Dantherm DCU22-2000DH, Руководство по обслуживанию

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Heater kit(options)
It is an 800W heater option, the heater is switched on when the return air temperature goes below the
heater set point (default is 5
℃
) and off again 2
℃
above this.
The current consumption by the heater is monitored when switched on. Does the consumption fall
below 3A, the heater is regarded as faulty and this will be signalized by the failure relays. This fault will
be rejected when a simultaneous loss of AC main power is detected.
If the internal DC fan is malfunctioning the heater will not be switched on, as no air will pass the
heating elements.
Filter blockage detection kit(options)
The filter blockage detection kit is detected whether the air filter is blocked by the dust or other things.
The default set point is 220Pa, when the pressure difference between the air filter outlet and inlet is
arrived to the set point, the pressure switch is regarded as faulty and the “alarm status” LED on the
controller will be slow flashed, but this will not be signalized by the failure relays.
Humidity detector(options)
The humidity detector is detected the ambient humidity. When the ambient humidity is higher than the
set point, the humidity detector is regarded as faulty and the “alarm status” LED on the controller will
be slow flashed, the damper is forced to close, but this will not be signalized by the failure relays.