Aprilaire 8800 UNIVERSAL owner manual Battery Replacement

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Operation

Battery REPLACEMENT

Batteries are not required for proper operation. The thermostat is a 24VAC powered device with a battery back-up for the clock..

The thermostat has a memory backup that saves the thermostat’s settings in case of a power interruption.. The system settings will be retained but the clock will reset after 90 seconds with no battery or AC power..

Replace the batteries every year or when the low battery indicator comes on..

The reset button located under the battery cover can be used to reset the thermostat to factory defaults..

RESET

BUTTON

WARNING

The reset button should only be used by the installer.

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Contents Model 8800 Universal Communicating Thermostat Table of contents Thermostat Features About your new thermostatControls & display overview Home Screen Controls & display overview Main Menu Select system mode Press Mode to selectChange temperature set point OFF Heating and cooling systems are offSelect fan setting ON/AUTO/CIRC Clean ScreenMaintenance Reminders Press FAN to selectBattery Replacement Humidistat Functions Humidistat Control ScreenHow to enter the setup menu to change Humidistat Mode Network Features Status IndicatorsNetwork Override SecuritySet Date ProgrammingSet Time Understanding program schedules 600AM 70F 21C 78F 26C62F 17C 85F 29C 70F 21C 78F 26CProgressive recovery To set the setpoints of the first event Changing program schedulesPress Next, then or Press Next, then FAN to set the fan mode of the first event Thermostat will display the Copy optionTo cancel the Temporary Hold, press Cancel Hold Program schedule holds temporary Temporary program holdProgram schedule holds permanent Permanent program hold Program schedule holds Vacation Vacation program holdPress Menu to enter Main menuTo set end date Setup Menu How to enter the setup menu to change settingsUser system settings table FahrenheitMinutes Thermostat Five Year Limited Warranty Warranty RegistrationAprilaire a division of Research Products Corporation