INST
ALLA
TION
POWER UP
SETUP
USAGE GUIDE
ADV
ANCED MENUS
INST
ALLA
TION
POWER UP
SETUP
USAGE GUIDE
ADV
ANCED MENUS
6
31
I
nstallatIon
a
dvanced
I
nstaller
c
onfIguratIon
M
enu
C
ontrol
i
nStallation
l
oCation
Locate the control on a vibration-free inside wall in an area having good air circulation.
The control should be located approximately five feet high. The control should be
located in an area such that it is not influenced by the following:
Drafts
Dead spots behind doors, in corners, or under cabinets
Cold or hot air from registers
Sunlight
Light from fixtures or other appliance
Radiant heat from a fireplace or other heat source
Concealed water pipes (hot or cold)
Unconditioned areas behind the control
NOTE:
It is recommended that multiple wires into a single terminal be twisted together prior to inserting into the plug
connector. Failure to do so may result in intermittent operation.
W
iring
r
eQuirementS
Each digitally communicating device in the system requires four wire connections:
24VAC Hot (R), 24VAC Common (C), Data 1 (1), and Data 2 (2). The R and C connections
provide a 24VAC power supply that can be shared between the indoor and outdoor units
and the thermostat. The data 1 and data 2 connections provide the communications bus
between the indoor unit, outdoor unit and thermostat. Thus, the R, C, 1, and 2 terminals
must be wired consistently. See the indoor unit and outdoor unit respective installation
manuals for additional wiring details.
S
enSorS
Sub-menu Item
Indication/User
Modifiable Options
Comments
Outdoor Air
Temperature
(AIR TMP)
Displays the outdoor
air temperature
Sensor may or may not be available
on an air conditioner. Check air
conditioner instructions for details.
Outdoor Coil Tem-
perature (COIL TMP)
Displays the outdoor
coil temperature
Required for heat pump operation.
C
ool
S
et
-
uP
Sub-menu Item
User Modifiable
Options
Comments
(applies to AC and HP models)
Cool Airflow Trim
(CL TRM)
-10% to +10% in 2%
Increments
Selects the airflow trim amount;
applies to air conditioner only.
Cool Airflow Profile
(CL PRFL)
A, B, C, or D
Selects the airflow profile; applies to
air conditioner only.
Cool ON Delay
(CL ON)
5, 10, 20, or 30
seconds
Selects the indoor blower on delay;
applies to air conditioner only.
Cool OFF Delay
(CL OFF)
30, 60, 90, or 120
seconds
Selects the indoor blower off delay;
applies to air conditioner only.
Dehumidification
Select (DEHUM)
ON or OFF (default
is OFF)
Selecting “OFF” disables dehumidification;
selecting “ON” enables dehumidification;
applies to air conditioner only.
Indoor unit to thermostat wiring:
Connect a wire between terminal “R” on
the thermostat sub base and terminal
“R” on the 4-position plug connector for
the indoor unit. Repeat for the C, 1, and 2
terminals.
Indoor unit to outdoor unit wiring:
Connect a wire between terminal “R”
on the indoor unit’s 4-position plug and
the terminal “R” on the outdoor unit’s
4-position plug connector. Repeat for
the C, 1, and 2 terminals.
Touchscreen
Thermostat
Indoor
Board Terminal
Connections
Outdoor
Board Terminal
Connections
R
C
1
2
R
C
1
2
R
C
1
2
24VAC (Hot)
24VAC
(Common)
Data 1
Data 2