This setting allows you to select
the number of heat and cool
stages.
Select GAS to have the system
control the fan during a call for
heat, select Electric to have the
thermostat control the fan during
a call for heat.
Note: If heat pump is set to “ON” this
step will not show, and will default
to ELECTRIC.
Electric or Gas
Fan Operation
(Only displayed if
heat pump is set
to OFF)
Use and buttons to
change the setting.
Tech Setup Steps
Adjustment Options
Default
LCD Will Show
FAN SET
System
Stages
2H
GAS
Tech Setup Steps
Adjustment Options
Default
LCD Will Show
Technician Setup Menu
Technician Setup Menu
14
13
18
17
GAS
System Set
Use the or buttons
until the desired application
is flashing. AUTO = (Auto
Changeover)
Heat
Off
Cool
SYSTEM SET
AutoOff
Em.Heat
Cool
You can configure the system
switch for the particular
application. Heat - Off - Cool,
Heat - Off, Cool - Off, Heat - Off -
Cool – Auto.
Note: Emergency Heat is available
in heat pump mode only.
Dual Fuel
Auxiliary For
Heat Pump
(Only displayed if
heat pump is set
to ON)
OFF
This setting allows the system
to run Gas, Oil, Propane or any
other types of auxiliary heat. The
thermostat will default to electric
auxiliary heat in heat pump
applications.
OF
DUAL FUEL
Use the and buttons
to select ON/OFF.
SET
STAGES
2H2C
Use the and buttons
to select 1H/1C, 2H/1C,
2H/2C, 3H/1C, 3H/2C, 3H/3C,
4H/2C, 4H/3C, 5H/3C.
Note: Heat and cool choices
are limited based on
conventional, heat pump, or
PTAC system configuration.
Third Stage of
Cool Terminal
Designation
(Only displayed
if stages of cool
is set to three on
previous setting)
This setting allows the O or B
terminal to be selected as the
third stage of cool. The selected
terminal will not be used for
reversing valve functions in heat
pump mode.
Use the and buttons to
select O/B.
O
3 COOL TERM
0
This feature allows the thermostat
to keep multiple stages of heat or
cool energized until the setpoint
is satisfied.
Satisfy
Setpoint
Staging
(Only displayed
if there are more
than one stage of
heat or cool)
Use the or buttons
to turn on of off.
SS STAGING
OF
This feature allows a delay to
occur if an additional stage is
needed. This allows the previous
stage extra time to satisfy the
setpoint.
Note: Will not show if using
outdoor sensor with balance point
temperature.
Staging
Delay
(Only displayed
if there are more
than one stage of
heat or cool)
Use the or key to
select OFF, 5, 10, 15, 30, 45,
60, or 90 minutes.
STAGING
DELAY
OF
This feature allows the installer
to select the minimum run
time for the compressor. For
example, a setting of 4 will force
the compressor to run for at
least 4 minutes every time the
compressor turns on, regardless of
the room temperature.
Minimum
Compressor
On Time
You can set the minimum
compressor run time to
“OFF”, “3”, “4”, or “5” minutes.
If 3, 4 or 5 is selected, the
compressor will run for at
least the selected time
before turning off. Use the
and buttons to
change the setting.
MIN COMP ON
OF
OFF
OFF
OFF
The compressor short cycle delay
protects the compressor from
“short cycling”. This feature will
not altlow the compressor to be
turned on for 5 minutes after it
was last turned off.
Compressor
Short Cycle
Delay
ON
Selecting “ON” will not allow
the compressor to be turned
on for 5 minutes after the
last time the compressor was
on. Select “OFF” to remove
this delay. Use the and
buttons to change the
setting.
Cooling Fan
Delay
The cooling fan delay setting will
delay the fan from coming on in
cool mode and keep it running
after the compressor shuts off
for a short time to save energy in
some systems.
You can set the cooling fan
delay to OFF, 10, 30, 60 or 90
seconds. If 10, 30, 60, or 90
is selected the fan will not
turn on for that many seconds
when there is a call for cool
and will run for that many
seconds after satisfying a call
for cool.
OFF
COMP DELAY
COOL FAN DL
OF
Typical 2H/2C system with 24 VAC Humidifier
Typical 2H/2C system with Dehumidify Terminal
L2
L1
(HOT)
C
R
RC
RH
Y
C
G
W/E
W2
Y2
H
COMPRESSOR
RELAY
HUMIDIFIER
HEAT RELAY
FAN RELAY
HEAT RELAY 2
COMPRESSOR
RELAY 2
RC
RH
Y
C
W/E
G
W2
Y2
D
COMPRESSOR
RELAY
HEAT RELAY
FAN RELAY
HEAT RELAY 2
COMPRESSOR
RELAY 2
DEHUMIDIFIER
RELAY
L2
L1
(HOT)
C
R
Typical 2H/2C system with Dry Contact Humidifier
RC
RH
Y
C
W/E
G
W2
Y2
H
COMPRESSOR
RELAY
24V RELAY
NORMALLY-OPEN
TERMINALS
HEAT RELAY
FAN RELAY
HEAT RELAY 2
COMPRESSOR
RELAY 2
L2
L1
(HOT)
C
R
DRY CONTACT
HUMIDIFIER
HUM
HUM
Wiring Diagrams
Wiring Diagrams
Power supply
Factory - installed jumper. Remove only when installing on 2 transformer systems.
Use either O or B terminals for changeover valve.
Optional 24 VAC common connection when thermostat is used in battery power mode.
If DEHUM relay requires a normally-energized input, set Dehumidify relay to NC in
Technician Setup.
Typical 5H/3C Heat Pump System
RC
RH
Y
C
W/E
G
W2
Y2
COMPRESSOR
RELAY 1
FAN RELAY
AUXILIARY
HEAT 2
COMPRESSOR
RELAY 2
AUXILIARY
HEAT 1
C
R
L2
L1
(HOT)
O
B
COOL
CHANGEOVER OR
COMPRESSOR 3
HEAT
CHANGEOVER OR
COMPRESSOR 3
