Kampmann KaDeck, Assembly, Installation And Operating Instructions

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KaDeck
Assembly, installation and operating instructions
31
Circuit description
Factory-fitted actuators are wired to the terminals on the control board. If no valve actuators are factory-fitted, appropri-
ate terminals are available for on-site valve actuators.
Only 24 V DC valve actuators (Open/Closed or continuous) can be connected.
The speed of EC fans used is continuously variably controlled by a 0 – 10 V DC signal. The "intelligent" motor electronics
detect any possible motor malfunction and automatically switch off the fan.
The cooling valve (V1) is actively closed in the event of a condensate alarm.
The motor malfunction signal and condensate alarm are available at the collective fault signal potential-free contact.
The control board has various LEDs for the visual display.
It also features two micro-fuses.
Section of circuit board Description
Terminal block X1 (230 V AC feed)
230 V AC / 50 Hz feed
With 2-pipe versions: External valve actuation V1 230 V AC / 50 Hz
Open/Closed for heating/cooling
With 4-pipe versions: External valve actuation V1 230 V AC / 50 Hz
Open/Closed for cooling
With 4-pipe versions: External valve actuation V2 230 V AC / 50 Hz
Open/Closed for heating
Terminal block X3 (24 V DC control voltage)
With 2-pipe versions: External valve actuation V1 24 V DC Open/Closed
or continuous for heating/cooling
With 4-pipe versions: External valve actuation V1 24 V DC Open/Closed
or continuous for cooling
With 4-pipe versions: External valve actuation V2 24 V DC Open/Closed
or continuous for heating
0-10 V DC signal for EC fan speed continuously variable
Terminal block X3 (fault signal output):
Collective fault signal (motor, condensate)
Pot.-free changeover contact 24 V / 2 A (AC1)
No fault -> COM/NC contact closed
Fault -> COM/NC contact open
Terminal block X4 (condensate pump/dewpoint monitor):
Supply voltage output 24 V DC for dewpoint monitor
Condensate pump / dewpoint monitor fault signal input
Note: The cooling valve (V1) is actively closed in the event of a con-
densate alarm