Ovation 214 User Manual page 44

OVATION 214
CURTAIN OPERATING TIME COMPENSATION
1. Normal Mode (Without Compensation)
The curtain opens and closes intermittently according to the speci-
fied opening time, closing time and time off, as described on the
preceding pages. There is no outside temperature compensation.
2. Progressive Mode (With Compensation)
The controller can use the current outside temperature to adjust the
opening and closing times of the curtain. This feature must be acti-
vated from the front panel (see below). An outdoor temperature
probe must be connected to input #5 for this feature to work.
Room Temperature Rises: When the curtain opens, the controller
increases TIME ON by 5% for every 1°F (0.6°C) difference between
the outside temperature and the outside Set Point. The TIME OFF is
decreased by the same amount. This is true if the outside tempera-
ture is greater than the outside set point.
The higher the outside temperature, the time on increases, causing
the curtain to open faster.
Room Temperature Falls: When the curtain closes, the controller
increases TIME ON by 5% for every 1°F (0.6°C) difference between
the outside temperature and the outside Set Point. TIME OFF is de-
creased by the same amount. This is true if the outside temperature
is lower than the outside set point.
The lower the outside temperature, time on increases, causing the
curtain to close faster.
NOTE: If, after compensation, the time off value is less than or equal
to ten seconds, it is set to zero.
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OVATION 214 rev.00