Page 26
ECS-4+
HEATER / FAN 3 RELATIVE SET POINT
The Heater/Fan 3 relative set point is the
relative set point at which Heater/Fan 3 begins
to operate. This value is the temperature
difference
from the main set point.
When a heater is being controlled, the relative
set point is below the main set point. When a
fan is being controlled, the relative set point is
above the main set point.
The Heater/Fan 3 relative set point temperature
is adjusted in 0.5 degree increments from a
minimum setting of -9.0°F (-5.0°C) to a
maximum setting of 30.0°F (16.0°C).
Adjusting the Heater/Fan 3 relative set point:
•
rotate the Selector dial to position (6),
•
rotate the Adjustor dial counterclockwise to
decrease the setting, clockwise to increase
it.
The relative temperature setting is displayed on
the front panel
Example: The main set point temperature is adjusted to
70°F. A heater is in use and the relative set point is
adjusted to -5°F. When room temperature reaches 65°F,
the heater begins to operate.
A third fan is in use and the relative set point is adjusted
to 15°F. When room temperature reaches 85°F, the third
fan begins to run.
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