EC-VSD VSD TYPE CONTROL FOR EC FANS

Description

EC FAN AUTO/MANUAL SIGNAL SELECT MODULE c/w MANUAL SPEED SETTING POTENTIOMETER, ONBOARD 12vDC POWER SUPPLY,  RUN / FAULT INPUT (typically from C.T, PRESSURE or FLOW SWITCH),  24v RUN/FAULT OUTPUTS.

PLUS RAMP UP / DOWN SPEED TIME DELAYS & OUTPUT LIMITING FOR MIN & MAX SPEED SETTINGS VIA SIMPLE ADJUSTABLE  POTENTIOMETERS.

AFFECTIVELY ALSO ACTS AS EC FAN SOFT STARTER TO AVOID SUDDEN FULL SPEED IMPACTS ON STARTUP.

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