Aprilaire 8840 User Manual

INDOOR AIR QUALITY FUNCTIONS
EVENT BASED™ AIR CLEANING
If an air cleaner is installed, the
thermostat will activate the fan for the
purpose of air cleaning.
1. Touch Air Cleaning on the home screen
to open the Air Cleaner Control screen.
TEMPORARY EVENTS
Event Clean (3 Hour): When you need
the fan to run non-stop for a short while,
such as while vacuuming, choose this
option. When selected, the air cleaner
will run continuously for 3 hours and then
return to the previous Permanent Mode.
Allergies (24 Hour): When seasonal
allergies spike and outside air quality
is at its worst, choose this option.
When selected, the air cleaner will run
continuously for 24 hours and then return
to the previous Permanent Mode.
PERMANENT MODES
Off: The thermostat will not call for the
fan to run for the purpose of air cleaning.
Air Cleaning will still occur during normal
fan operation, during heating, cooling or
other indoor air quality events.
Automatic: The air cleaner will run a
minimum of 30 minutes every hour. The
air cleaner will monitor the amount of
time your heating and cooling system
runs. If 30 minutes is not reached, the air
cleaner will automatically turn on. This
will provide the most-efficient balance
between air cleaning and energy use.
Constant Clean: This option will provide
the maximum amount of air cleaning
available. The air cleaner will be active for
24 hours a day, 7 days a week.
30
1

Aprilaire 8840 Specifications

General

Brand	Aprilaire
Model	8840
Category	Thermostat
Language	English