Aprilaire 8570 Thermostat User Manual


 
5. PROGRESSIVE RECOVERY
Progressive Recovery causes the thermostat to bring on the
heating/cooling equipment before the programmed event start
time, in order for the temperature to be at the programmed
value by the programmed time. The feature can be turned on
or off. When turned off, the heating/cooling equipment will
not begin bringing the space temperature to the programmed
value until the start of the event.
To turn Progressive Recovery on or off:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the and buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the or button to highlight “PROGRESSIVE
RECOVERY” and press the SELECT button.
4. To cancel, press the BACK button
5. To change whether Progressive Recovery is on or off,
press the or button to highlight either ON or OFF.
6. To finish and return to the ADV. SETTINGS MENU, press
the SELECT button.
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3. OFFSET
All thermostats are factory calibrated to be accurate to within
±1° of true temperature. An offset is available to allow for
agreement with field temperature measuring instruments. The
value set will be added to the temperature sensed by the
thermostat. The result will be displayed on the thermostat and
will be used as the control value.
To change the offset:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the and buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the or button to highlight “SET OFFSET” and
press the SELECT button.
4. To cancel, press the BACK button.
5. To change the offset value, press the or button to
raise or lower the setting between –4° and +4° (°F or °C).
6. To finish and return to the ADV. SETTINGS MENU, press
the SELECT button.
4. DEADBAND
This is the number of degrees (in either °F or °C) that the heat
setting must be lower than the cool setting. The thermostat will
automatically adjust the temperature setting not being changed
to maintain this difference.
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the and button for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Scroll down through the menu items and select SETTINGS.
4. Use the or button to highlight “DEADBAND” and press
the SELECT button.
5. To cancel, press the BACK button. This will return you to the
SETTINGS MENU.
6. To change, use the or button to scroll to either 2°
or 5°.
7. To finish and return to the ADV. SETTINGS MENU, press the
SELECT button.