Aprilaire 8570 installation instructions Customize the Application Settings

(11) CUSTOMIZE THE APPLICATION SETTINGS

2. DIFFERENTIALS

Determines the temperature above/below the temperature setting at which the heating or cooling equipment will turn

3. Use the ▲ or ▼ button to highlight “SET DIFFERENTIAL”

and press the SELECT button.

– If the thermostat SINGLE/MULTI dip switch is set for

1. PROGRAMMABLE OR NON-PROGRAMMABLE

This thermostat can be configured as a programmable or non-programmable thermostat. Four choices are available:

4-Residential	This setting is best for homeowners where there
	are regularly scheduled, long periods of time
	during any day where the house is not occupied,
	such as when everyone is at school or work. In
	the program, there will be four scheduled
	temperature changes per day (events) labeled
	Wake, Leave, Return and Sleep.
2-Residential	This setting is best for homeowners who have
	no long periods of time during the day when the
	home is unoccupied. In the program, there will
	be only two scheduled temperature changes per
	day (events) labeled Day and Night.
2-Business	This setting is best for businesses that are
	occupied during business hours and not occupied
	during non-business hours. In the program, there
	will be only two scheduled temperature changes
	per day (events) labeled Occupied and Unoccupied.

0-Non Programmable This setting is best when having the temperature setting change with the time of day is not desired. The Program option in the menu is not available when this setting is selected. To change the temperature, simply use the Up and Down arrow buttons.

1.Make sure the thermostat is in the OFF mode.

2.Press MENU button to show the MAIN MENU.

3.Scroll down through the menu items and select SETTINGS.

4.In the SETTINGS MENU, scroll down through the menu items and select EVENTS PER DAY.

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 the desired setting.

7.To finish and return to the SETTINGS MENU, press the SELECT button.

on. For example, a heat temperature setting of 70°F with a differential of 2° will result in the equipment turning on and off to maintain the temperature between 68°F and 70°F. If the second stage differential is also 2°, the second stage would be used to ensure the temperature did not drop below 66°. The default setting for the first stage and second stage differential is 1°.

To change the differential settings:

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.

	MULTI, two differentials will appear, if set for SINGLE,
	only one will appear.
4.	To cancel, press the BACK button. This will return you
	to the ADV. SETTINGS MENU.
5.	To change the first stage differential, press the ▲ and ▼
	button to raise or lower the setting. To change the second
	stage differential, press the SELECT button.
6.	To finish and return to the ADV. SETTINGS MENU, press
	the SELECT button after the value(s) have been set.
	– For heat pumps – the auxiliary heat differential(s) are
	set separately after the number of auxiliary heat stages is
	selected. See Diagrams 6-8on pages 14 -16 for auxiliary
	heat set up instructions.

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