Zone 1 Differential - Varifan CPS-3M User Manual

CPS-3M
The differential minimizes erratic behavior of
the actuator motor when the room temperature
is exactly at the main set point. The differential
setting is above the set point when curtains are
closing, and below set point when they are
opening. This feature, which greatly reduces
equipment wear, represents the inactivity zone
for the CPS-3M, that is if the main set point is
DIFF
reached.
The differential is adjusted in 0.5 degree
increments from a minimum setting of 0.0°F
(0.0°C) to a maximum setting of 6°F (3°C)
degrees.
Adjusting the differential setting for zone 1:
• rotate the selector dial to position (12),
• rapidly rotate the adjustor dial back and
forth to enter secondary function mode,
• rotate the selector dial to position (11),
• rotate the adjustor dial counterclockwise to
decrease the setting, and clockwise to
increase it.
The differential setting is displayed on the
CPS-3M.
Page 36
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ZONE 1 DIFFERENTIAL