850 Communicating Wi-Fi Comfort Control
11-HD14D1-9-EN 7
5. System Setup
5.1 Power-up Sequence
When the 850 Control is connected to the Sub-base, the
Control initiates a 90-120 second power-up sequence.
During the power-up sequence, the Screen Calibration
option is available for five seconds (Screen Calibration
is available for five minutes if the screen has never been
calibrated and following a Restore Factory Defaults
command).
If the screen is not pressed within five minutes, the Control
will default to previously stored Screen Calibration settings.
The 850 Control is factory calibrated and can be recalibrated
at any time by rebooting the Control.
Note: Temperature display may be inaccurate until the 850
Control acclimates to ambient room conditions, which may
take up to one hour.
5.2 Guided Setup Wizards
The 850 Control features two Setup Wizards, the Installation
Wizard and the User Setup Wizard. The Installation Wizard
guides installers through the installation and configuration
process, and the User Step Wizard guides Homeowners
through user-configurable settings.
Installation Wizard
The Installation Wizard appears when the 850 Control is
powered on for the first time, when the Restore Factory
Defaults function is invoked (Home>Menu>Service>
Technician Access>Proceed>Restore Factory Defaults),
and when it is selected directly (Home>Menu>Service>
Technician Access>Proceed>Installation Wizard).
By following the navigational steps and screen prompts,
installer’s are guided through the Time and Date, Installer
Setup (see “5.4 Installer Setup Screens” on page 8 for
detailed descriptions of each of the Installer Setup Screens),
Reminders and Dealer Code configuration menus. Each of
these menus can be individually accessed after completing
the Installation Wizard.
user Setup Wizard
The User Setup Wizard is accessed navigating to
Home>Menu>Settings>User Setup Wizard. By following the
navigational steps and screen prompts, homeowners are
guided through the Display, Schedules, Guided Schedule,
Network, Nexia and Weather configuration screens. Each
of these menus may also be accessed individually. Refer
to the User Guide for detailed information on user settings.
B/C
R
D
ODT
ODT
RS1
RS1
Y1
Y2
O
R
B
D
Y1
O
Y2
R
B
Optional
Outdoor
Sensor*
Optional
Remote
Sensor*
Communicating Indoor (TAM8) w/Non-Comm Outdoor
COMMUNICATING
INDOOR UNIT
CCM
NON-COMMUNICATING
OUTDOOR UNIT
850
COMFORT
CONTROL
*Caution: Do not run Outdoor/Remote
sensor wires in the same bundle
with HVAC wires. Also, keep away
from high voltage wiring to avoid
interference.
Communicating Indoor (TAM8) w/Non-
Communicating Outdoor and CCM
See Furnace
Installer’s Guide for
specific wiring
instructions.
Communicating Controls w/S9V2 Furnace and Comm Outdoor
B/C
R
D
ODT
ODT
RS
RS
R
B
D
Optional
Outdoor
Sensor*
Optional
Remote
Sensor*
RELAY PANEL
S9V2
FURNACE
OUTDOOR
UNIT
850
COMFORT
CONTROL
*Caution: Do not run Outdoor/Remote
sensor wires in the same bundle
with HVAC wires. Also, keep away
from high voltage wiring to avoid
interference.
R
B
D
S9V2 Furnace w/Communicating Outdoor
