Speed controller EZQ../EZS..

Speed adjustable with accessories matching the unit type with

• STX../STSX.. speed controller (stepless)

or

• TRE... 5-step transformer

NOTICE: The technology used in the phase angle controller may cause humming noises.

NOTICE: The fan will stop/suffer functional problems if the output voltage on the speed controller is too low. Observe operating instructions for speed controller. Set the minimum speed on the speed controller such that the fan motor starts up again after power failure.