Page 24
ECS-3M
FAN 1 DIFFERENTIAL
The Fan 1 differential setting establishes the
temperature at which Fan 1 reaches maximum
speed. The value is a temperature difference
from the main set point.
The Fan 1 differential is adjusted in 0.5 degree
increments from a minimum setting of 2.0°F
(1.0°C) to a maximum setting of 18.0°F (10.0°
C).
Adjusting the Fan 1 differential:
•
rotate the Selector dial to position (2),
• rotate the adjustment dial counterclockwise
to decrease the temperature setting,
clockwise to increase it.
The Fan 1 Differential setting is displayed on
the ECS.
2
Example: A main set point
temperature of 70°F along with a
Fan 1 differential setting of 5°F is
set. When the temperature of the
room reaches 75°F, Fan 1
operates at its maximum speed.
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