Configuring optional features
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4.
Enter the temperature using the numbers on the keypad, or press
+
or
–
to adjust the hysteresis
and then press
ENTER
.
The Supra interprets the last digit as a decimal. For example, to enter 0.5°F,
press 05.
5.
Scroll to the next line.
6.
Repeat steps 4 and 5 for each setting.
Actuators have three hysteresis values: one for temperature, one for position,
and one for duration. For more information, read the
7.
Press
BACK
twice to return to the Main Menu.
Configuring de-icing
The Supra’s de-icing feature helps keep variable-speed fans from icing up if the outdoor temperature
is too cold. When de-icing is enabled, variable-speed fans start at full speed before dropping to the
idle or normal speed. Configuring de-icing means setting the temperature at which de-icing starts,
setting the duration it lasts, and selecting which variable speed fans to de-ice.
For example, if you set the de-icing temperature to 32°F and the duration to 3 seconds, when the
fan starts up, it automatically runs at full speed for three seconds before dropping down to its
normal speed (whatever the normal speed should be for the current temperature in that zone).
For de-icing to work properly, you must have a temperature probe connected to
the
OUT TEMP
terminal. For more information, read
If de-icing is enabled and there is no outdoor probe (or it is damaged), the Supra
operates as if the outdoor temperature is below the de-icing temperature.
To configure de-icing
1.
From the Main Menu, select
Maintenance
(2).
2.
From the Maintenance menu, select
De-Icing
(8).
The display should look like the following example.
Содержание Supra-RS
Страница 1: ......
Страница 8: ...viii...
Страница 16: ...Chapter 1 Introduction 16 Phason Understanding the menu structure...
