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M
If the VFD has been in storage or disconnected from power for more than one year, apply AC supply
M
power to the VFD for two hours prior to operation to recondition the internal DC bus capacitors.
R
F
Starting and stopping the fan
R
F
The RUN and STOP buttons control the fan start and stop functions.
STOP
RUN
To start the fan, press the green RUN button.
To stop the fan, press the red STOP button.
STOP
Adjusting fan speed
M
The arrow buttons control speed adjustment.
To adjust fan speed, press the Up or Down arrow button.
• Single presses will increase or decrease the speed in 1–2% increments.
R
F
• Pressing and holding the Up or Down arrow button will slowly and continuously adjust fan
speed until the button is released.
M
STOP
RUN
Reversing direction of fan rotation
R
F
The direction of fan rotation can be reversed when the fan is stopped or running.
then
To reverse the direction of rotation, press the Direction button, and then press the Memory/Enter
M
button as shown on the left. The associated direction indicator will flash to indicate the pending
change.
STOP
R
F
STOP
20
OPERATING THE FAN
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