The SDP Power interface card for 3-speed control is used as a signal amplifier in situations where the absorbed fan motor current is greater than the switching current of the Ventilclima thermostat or controller. The switching contact capacity of this SDP is 16 A at 250V AC. Consult our downloads to see which fan coil unit needs this SPD-card.
Brand
Ventilclima
Application
Controlling a single AC motor in a fan coil unit where the motor current is greater than the switching capacity of the Ventilclima controller/thermostat (max. 3 or 5 A according to model). Each of the controller's low-mid-high speed signals drives a relay in the SDP which in turn powers the fan speed.