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Natural Ventilation Control
Phason
14
2014-04-10
To program the High alarm
Default: 95.0°F, range:
Low alarm
to 125°F (51.7°C), or OFF
1.
Press
Up
or
Down
until the display shows
H i a L
.
2.
Press
Select
.
The current setting (in degrees) displays and the
High alarm
LED flashes.
3.
Press
Up
or
Down
to adjust the setting and then press
Select
.
The change is saved and the display shows
H i a L
.
4.
Press
Down
to move to the
Low alarm
, or Back to cancel and return to the main display.
To program the Low alarm
Default: 50.0°F, range: -13°F (-25°C) to
High alarm
, or OFF
1.
Press
Up
or
Down
until the display shows
L o a L
.
2.
Press
Select
.
The current setting (in degrees) displays and the
Low alarm
LED flashes.
3.
Press
Up
or
Down
to adjust the setting and then press
Select
.
The change is saved and the display shows
L o a L
.
4.
Press
Down
to move to the
Hysteresis
, or
Back
to cancel and return to the main display.
Changing the temperature units
The NVC can display temperatures in Fahrenheit or Celsius. The default is Fahrenheit.
To change the Units
1.
Press
Up
or
Down
until the display shows
U n i t
.
2.
Press
Select
.
The current setting (°F or °C) displays and the
Units
LED flashes.
3.
Press
Up
or
Down
to adjust the setting and then press
Select
.
The change is saved and the display shows
U n i t
.
4.
Press
Down
to move to
Sensor
, or
Back
to cancel and return to the main display.
Enabling the optional rain sensor
With the optional Phason Rain Sensor installed, the NVC automatically the curtain when rainfall is
detected. When the sensor detects rain, it sends a signal to the NVC. When the NVC receives the
signal, it completely closes the curtain, bypassing the on and off durations. After 15 minutes with no
new rainfall, the NVC returns to normal operation.
For more information, read
Phason Rain Sensor
on page 21.