Varifan ECS 5M, User Manual

Page: 25 / 52

Page 25
FAN 1 DUTY CYCLE
As long as the actual temperature is below the
main set point, Fan 1 operates under a timer
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 a
3
minutes period.
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 ECS.
Example: The duty cycle is set to 30%. As long
as the main set point temperature of the room
has not been reached, the fans operates at
minimum speed for 1 minute, and OFF for 2
minute.
TIMER
on
off
CHAPTER 3 - USER GUIDE