Aprilaire 8800 Operation, Select system mode, Press MODE to select, Change temperature set point

Operation

Select system mode

(EM HEAT/HEAT/OFF/COOL/AUTO)

Press [MODE] to select:

EM HEAT: (only for heat pumps with auxiliary heat) Thermostat controls auxiliary heat.. Heat pump will not operate in EM HEAT mode..

HEAT: Thermostat controls only the heating system..

OFF: Heating and cooling systems are off..

COOL: Thermostat controls only the cooling system..

AUTO: (if enabled in installer setup) Thermostat automatically selects heating or cooling depending on the indoor temperature..

Press [DONE] to save and exit, or [CANCEL] to exit without saving.. The thermostat will save and exit if nothing is pressed within 10 seconds..

Change temperature set point

Press or to adjust the current set point.

(See Program Schedule Holds on pages 17-19 for more information..)

Operation

Select fan setting (ON/AUTO/CIRC)

When the fan mode is changed during a program event it remains in that mode until the next event starts.. The fan must be programmed to FAN ON in the schedule to run continuously through all events..

Press [FAN] to select:

ON: Fan runs continuously. Use this mode for maximum air circulation/cleaning..

AUTO: Fan runs only when the heating or cooling system is on..

CIRC: Same as AUTO, but ensures the fan is on for at least 20 minutes per hour. Use this mode for a balance of energy savings and air circulation/cleaning..

Press [DONE] to save and exit, or [CANCEL] to exit without saving.. The thermostat will save and exit if nothing is pressed within 10 seconds..

Clean Screen

Press [MENU] to enter the main menu..

Press [CLEAN SCREEN] to disable the touch screen for 30 seconds for cleaning..

Note: Use a soft damp cloth to clean the screen.. Use water or household glass cleaner. Do not spray liquids directly on the screen..

MAINTENANCE REMINDERS

Maintenance reminders are set up by the installer to indicate when the equipment is due for service. If a maintenance reminder is displayed, call your HVAC dealer for service. They can be cleared by pressing [MENU] to enter the main menu, then [Next] to clear each reminder..

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