Fan 1 Duty Cycle - Varifan ECS-4+ User Manual

FAN 1 DUTY CYCLE

As long as the actual temperature is below the
main set point, Fan 1 operates at the minimum
speed, set by Fan 1 minimum speed (primary
function 2). The Fan 1 duty cycle sets the
percentage of time the fan is ON versus the
percentage of time the fan is OFF. The ON time
is entered as a percentage of the total time
which is a built in value of 3 minutes.
The Fan 1 duty cycle is adjusted in 5%
increments from a minimum setting of OFF,
5%, 10% etc., up to a maximum setting of ON
corresponding to continuous operation.
Adjusting the duty cycle of Fan 1:
•
rotate the Selector dial to position (3),
•
rotate the Adjustor dial counterclockwise to
decrease the duty cycle, clockwise to
increase it.
The duty cycle is displayed on the front panel.
Example:
The duty cycle is set to 50%. As long as the main set
point temperature of the room has not been reached, the
fan operates at a minimum speed for 1.5 minutes, and
goes OFF for 1.5 minutes.
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CHAPTER 3 - USER'S GUIDE
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