Power & Reset Options; Setup & Testing; Removal Of Indoor Air Quality Control Buttons; Equipment Type Selection Switch (Sw1) - Aprilaire 8910W Safety & Installation Instructions

POWER & RESET OPTIONS
The equipment control module is powered from 24VAC .
The thermostat is powered from the equipment control
module . In the case of power loss the thermostat will
maintain the clock for 24 hours . The thermostat has a
memory backup that saves the thermostat settings in
case of power interruption .
The reset button located under the cover on the front
of the thermostat can be used to reset the thermostat
to factory defaults . The system settings will also be set
to default .
SETUP & TESTING

REMOVAL OF INDOOR AIR QUALITY CONTROL BUTTONS

If any of the Indoor Air Quality control features are not installed, the corresponding button can be removed using the
following procedure:
Step 1: Verify the specific Indoor Air
Quality control feature is not
installed in the installer set-up
(see pages 14-16) .
Step 2: From the home screen (see
page 21), press and hold the
Indoor Air Quality button you
wish to remove for 7 seconds .
Step 3: The message center will
display REMOVE BUTTON and
the options of NO and YES
(NO will be flashing) .
Step 4: Press or to select YES .
Step 5: Press [DONE] .
Step 6: The button is now removed .
Note: Once the button is removed it can be brought back by installing the corresponding Indoor Air Quality feature
(see pages 14-16) .
10 English
SETUP & TESTING

EQUIPMENT TYPE SELECTION SWITCH (SW1)

RESET
This thermostat has the option of being used in heat
BUTTON
pump or heat/cool systems . Switch SW1 located on the
back of the thermostat's face is used to select this option .
This setting is displayed in the Installer System Settings
under Equipment Type .
Note: Thermostat reboots within 10 seconds after switch
position is changed .
90-2012

INSTALLER SETUP MENU

HOW TO ENTER THE INSTALLER SETUP MENU AND SELECT EQUIPMENT TO SETUP:
In the Installer Setup, HVAC or Indoor Air Quality setup can be selected . If Indoor Air Quality setup is selected, the
user can then select to set up Air Cleaning, Humidification, Dehumidification or Ventilation .
Press [MODE] to set system to OFF .
Press [MENU] to enter main menu .
Press and hold [SETUP] for seven seconds, [INSTALL
SETUP] appears .
INDOOR
Press [INSTALL SETUP] to enter installer setup menu .
AIR QUALITY
CONTROL
BUTTONS

CHANGE SYSTEM SETTINGS

SETTING
DESCRIPTION
SETTING
OPTIONS
HC
HP
HC
HP
Press or to adjust the option .
Press [MENU] to exit .
Press [NEXT] to select option .
If Indoor Air Quality was selected, Press
adjust the Outdoor Sensor setting or Indoor Air Quality
option .
Press [NEXT] to select Outdoor Sensor setting or
Indoor Air Quality option .
System Settings can now be changed .
Press [NEXT] or [BACK] to page through the settings .
SETTING
NUMBER
Press or to adjust the setting .
Press [DONE] to save and exit, or [CANCEL] to exit
without saving .
The thermostat will discard changes and exit if nothing
is pressed within 60 seconds .
To reset the installer settings to the default, reset
the thermostat by pressing the [RESET] button for 5
seconds .
SW1
HEAT/COOL
HEAT PUMP
or to
English 11