Minimum Ventilation Cycle; Minimum Ventilation Cycle Settings - Ovation 214 User Manual

Minimum Ventilation Cycle

When the room temperature is below the set point, the fans of stage 1
operate according to the minimum ventilation cycle. Running the fans
even though ventilation is not required for a cooling purpose is useful
to reduce humidity levels and supply oxygen to the room. It also
prevents the fans from freezing in winter.
STAGE 1 —
MIN. SPEED
OFF
During the Time On, stage 1 fans run at their minimum speed and
the pilot light of stage 1 is lit; during the Time Off, the fans return to
a stop and the pilot light turns off. Note that the minimum speed of
stage 1 can automatically be adjusted over time with a ramp (see
below).
NOTE: The controller supplies maximum voltage to the variable-speed
fans for 2 seconds immediately following each start-up.

Minimum Ventilation Cycle Settings

1. To run the fans continuously at minimum speed, set the Time
Off to zero and Time On to any value other than zero.
2. To stop the fans, set the Time On to zero and Time Off to
any value.
3. To run the fans intermittently, set the Time On to the de-
sired running time and Time Off to the desired off time.
TIME ON
STAGE 1
TIME OFF
STAGE 1
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