Honeywell Home T6 Pro TH6320U2008 User manual

Package Includes:
• T6 Pro Thermostat
• UWP™ Mounting System
• Decorative Cover Plate
• Screws and Anchors
• 2 AA Batteries
• Thermostat Literature
T6 Pro Programmable
Thermostat
Installation Instructions
–+
TH6320U2008,
TH6220U2000,
TH6210U2001,
Read before installing
Optional Cover Plate installation
NOTE: If Optional Cover Plate is not
required, see “UWP Mounting System
installation” on next page.
Use the Optional Cover Plate when
you need to cover paint gap from old
thermostat.
There are different cover plates
depending on when the thermostat was
manufactured.
For the square cover plate:
1. Separate the Cover Plate from
Mounting Plate.
2. Mount the Mounting Plate on to the
wall using any of the 8 screw holes.
Insert and tighten mounting screws
supplied with Cover Plate Kit. Do not
overtighten. See Figure 2. Make sure
the Mounting Plate is level.
3. Attach the UWP by hanging it on the
top hook of the Mounting Plate and
then snapping the bottom of the UWP
in place. See Figure 3.
4. Snap the Cover Plate onto the
Mounting Plate. See Figure 4.
Use supplied
screws and
wall anchors
4
3
2
1

2
UWP Mounting System installation
Use 3x supplied
screws (#8 11/2
for red anchors and
#6 11/2 for yellow
anchors)
1. Before starting, turn the power off
at the breaker box or switch. Open
package to find the UWP. See Figure 1.
2. Position the UWP on wall. Level and
mark hole positions. See Figure 2.
Drill holes at marked positions, and
then lightly tap supplied wall anchors
into the wall using a hammer.
‒If your box contains red anchors,
drill 7/32” holes.
‒If your box contains yellow anchors,
drill 3/16” holes.
3. Pull the door open and insert the wires
through wiring hole of the UWP. See
Figure 3.
4. Place the UWP over the wall anchors.
Insert and tighten mounting screws
supplied with the UWP. Do not
overtighten. Tighten until the UWP
no longer moves. Close the door. See
Figure 4.
4
12
3
For the rectangular cover plate:
1. Mount the Cover Plate on the wall using
any of the 6 screw holes. Insert and tighten
the mounting screws supplied with the
Cover Plate. Do not overtighten. See Figure
1. Make sure the Cover Plate is level. Attach
the UWP by hanging it on the top hook
of the Cover Plate and then snapping the
bottom of the UWP in place. See Figure 2.
2. If there are no existing wall anchors:
a. Position the Cover Plate on wall. Level
and mark hole positions. See Figure 1.
b. Drill holes at marked positions, and then
lightly tap supplied wall anchors into the
wall using a hammer.
•If your box contains red anchors, drill
7/32” (5.6 mm) holes.
•If your box contains yellow anchors,
drill 3/16” (4.8 mm) holes.
•Use 2x supplied screws (#8 11/2”
(38 mm) for red anchors and #6
11/2” (38 mm) for yellow anchors).
2
1

3
S
S
Y2
U
U
G
C
Y
A
Rc
W
K
W2
R
L/A
O/B
AUX
E
Power options
Wiring terminal designations
SInput for wired indoor
or outdoor sensors
(TH6320U and
TH6220U only)
L/A
- A
Heat Pump fault input
(Common (C) wire required
for LA/A)
SO/B Changeover valve
YCompressor contactor
(stage 1)
AUX -
W2
Auxiliary heat
Heat (stage 2)
Y2 Compressor contactor
(stage 2) EEmergency Heat
GFan WHeat (stage 1)
C
24VAC common. For 2
transformer systems,
use common wire from
cooling transformer.
KUnused
U
Unused
R24VAC power from heating
transformer*
URc 24VAC power from cooling
transformer*
Note: Not all
terminals may be
used, depending
on the system
type that is being
wired. The most
commonly used
terminals are
shaded.
* Terminal can be jumped using Slider Tab. See “Setting Slider Tabs” above.
Set R Slider Tab.
• Use built-in jumper (R Slider Tab)
to differentiate between one or two
transformer systems.
• If there is only one R wire, and it is
connected to the R, Rc, or RH terminal, set
the slider to the up position (1 wire).
• If there is one wire connected to the R
terminal and one wire connected to the Rc
terminal, set the slider to the down position
(2 wires).
NOTE: Slider Tabs for U terminals should be
left in place for T6 Pro models.
Setting Slider Tabs
Insert Rand Cwires into
designated terminals
for primary AC power (C
terminal is optional if
batteries are installed,
but it is recommended).
Remove wires by
depressing the terminal
tabs.
Insert AA
batteries for
primary or
backup power.
R/Rc slider tab
UWP Mounting System

4
1H/1C System (1 transformer)
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor
C 24VAC common [3]
W Heat
G Fan
Heat-only System
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
C 24VAC common [3]
W Heat
Heat-only System (Series 20) [5]
R Series 20 valve terminal “R” [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Series 20 valve terminal “W”
C 24VAC common [3]
W Series 20 valve terminal “B”
Heat-only System
(power open zone valve) [5]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
W Valve
C 24VAC common [3]
1H/1C System (2 transformers)
R Power (heating transformer) [1]
Rc Power (cooling transformer) [1]
Y Compressor contactor
C 24VAC common [3, 4]
W Heat
G Fan
Heat-only System with Fan
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
C 24VAC common [3]
W Heat
G Fan
Cool-only System
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor
C 24VAC common [3]
G Fan
2H/2C System (1 transformer) [6]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor (stage 1)
C 24VAC common [3]
W Heat (stage 1)
G Fan
W2 Heat (stage 2)
Y2 Compressor contactor (stage 2)
Wiring conventional systems: forced air and hydronics
Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.
NOTES
Wire specifications: Use 18 to 22-gauge thermostat wire. Shielded cable is not required.
[1] Power supply. Provide disconnect means and over-
load protection as required.
[2] Move RSlider Tab on UWP to the Rsetting. For
more information, see “Setting Slider Tabs” on page
3
[3] Optional 24VAC common connection.
[4] Common connection must come from cooling
transformer.
[5] In ISU set Heat system type to Radiant Heat. Set
number of cool stages to 0.
[6] In Installer Setup, set system type to 2Heat/2Cool
Conventional.

5
1H/1C Heat Pump System
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor
C 24VAC common [3]
O/B Changeover valve [7]
G Fan
W Do not use this terminal for heat pump
applications!
2H/1C Heat Pump System [8]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor
C 24VAC common [3]
O/B Changeover valve [7]
G Fan
Aux Auxiliary heat
E Emergency heat
L Heat pump fault input
W Do not use this terminal for heat pump
applications!
2H/2C Heat Pump System
(TH6320U only) [9]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor (stage 1)
C 24VAC common [3]
O/B Changeover valve [7]
G Fan
Y2 Compressor contactor (stage 2)
L Heat pump fault input
W Do not use this terminal for heat pump
applications!
3H/2C Heat Pump System
(TH6320U only) [10]
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor (stage 1)
C 24VAC common [3]
O/B Changeover valve [7]
G Fan
Aux Auxiliary heat
E Emergency heat
Y2 Compressor contactor (stage 2)
L Heat pump fault input
W Do not use this terminal for heat pump
applications!
Dual Fuel System (TH6320U / TH6220U only)
R Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Y Compressor contactor (stage 1)
C 24VAC common [3]
O/B Changeover valve [7]
G Fan
Aux Auxiliary heat
E Emergency heat
Y2 Compressor contactor (stage 2 - if
needed) [11]
L Heat pump fault input
S Outdoor sensor
S Outdoor sensor
W Do not use this terminal for heat pump
applications!
Wiring heat pump systems
Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.
NOTES
Wire specifications: Use 18 to 22-gauge thermostat wire. Shielded cable is not required.
[1] Power supply. Provide disconnect means and over-
load protection as required.
[2] Move RSlider Tab on UWP to the Rsetting. For
more information, see “Setting Slider Tabs” on page
3
[3] Optional 24VAC common connection.
[6] In Installer Setup, set system type to 2Heat/2Cool
Conventional.
[7] In Installer Setup, set changeover valve to O (for
cool changeover) or B (for heat changeover).
[8] In ISU set Heat system type to Heat pump. 1 com-
pressor and 1 stage of backup heat.
[9] In ISU set Heat system type to Heat pump. 2 com-
pressors and 0 stage of backup heat.
[10] In ISU set Heat system type to Heat pump. 2 com-
pressors and 1 stage of backup heat.
[11] Dual fuel with Y2 only for TH6320U.

6
Thermostat mounting
1. Push excess wire back into the wall
opening.
2. Close the UWP door. It should remain
closed without bulging.
3. Align the UWP with the thermostat, and
push gently until the thermostat snaps in
place.
4. Turn the power on at the breaker box or
switch.
Set the time and date
Time
1 Press Menu on your thermostat.
2 Press or to go to TIME. Press Select.
3 Press or to choose between 12 or 24 hour.
Press Select.
4 Use or to adjust the hour. Press Select.
5 Use or to adjust the minutes. Press Select
to exit Time menu.
Date
1 If previously setting time, continue to Step
2. If at the Home screen, press Menu on your
thermostat.
2 Press or to go to DATE. Press Select.
3 Use or to adjust year. Press Select.
4 Use the or to adjust month. Press Select.
5 Use the or to adjust day. Press Select to
save and exit Date menu.

7
Fan operation settings
1 Press the Fan button to cycle to the next
available Fan mode.
2 Cycle through the modes until the required
Fan mode is displayed and leave it to
activate.
NOTE: Available Fan modes vary with system
settings.
Fan modes:
‒Auto: Fan runs only when the heating or
cooling system is on.
‒On: Fan is always on.
‒Circ: Fan runs randomly about 33% of
the time.
System operation settings
1 Press the Mode button to cycle to the next
available System mode.
2 Cycle through the modes until the required
System mode is displayed and leave it to
activate.
NOTE: Available System modes vary by model
and system settings.
System modes:
‒Auto
‒Heat
‒Cool
‒Em Heat
‒Off
Alerts or Reminders*
1 Press Menu, and then press until display
shows ALRT.
2 Press Select to display which alert(s) are
present.
3 The word SNZE (SNOOZE) appears.
4 Press Select again to snooze the reminder
for 7 days.
5 To clear the alert, press Select, and then
press to go to CLER (Clear).
6 Press Select to clear the reminder.
* Some alerts cannot be snoozed or cleared.
Please call your local heating and cooling
professional if this occurs. The heating and
cooling system may require service.

8
1 Press and hold CENTER and buttons for
approximately 3 seconds to enter advanced
menu.
2 Press Select to enter ISU.
3 Press Select to cycle through menu setup
options.
4 Press or to change values or select
from available options.
5 Press Select and confirm your settings or
press Back to ignore changes and return
to ISU menu screen to continue editing
another setup option.
6 To finish setup process and save your
setting, press Home and return to Home
screen.
NOTE: A complete list of all setup (ISU)
parameters and options starts below and
continues through page 10.
Installer setup (ISU)
Advanced setup options (ISU)
NOTE: Depending on system settings, not all options may be available.
# ISU ISU Name ISU Options (factory default in bold)
120 Scheduling Options 0 = NonProgrammable
2 = 52 Programmable
3 = 511 Programmable
4 = 7Day Programmable
125 Temperature Indication Scale 0 = Fahrenheit
1 = Celsius
130 Outdoor Sensor
(TH6320U / TH6220U only)
0 = None
1 = Wired Outdoor Sensor
200 Heating System Type 1 = Conventional Forced Air Heat
2 = Heat Pump
3 = Radiant Heat
5 = None (Cool Only)
205 Heating Equipment Type Conventional Forced Air Heat:
1 = Standard Efficiency Gas Forced Air
2 = High Efficiency Gas Forced Air
3 = Oil Forced Air
4 = Electric Forced Air
5 = Hot Water Fan Coil
Heat Pump:
7 = Air to Air Heat Pump
8 = Geothermal Heat Pump
Radiant Heat:
9 = Hot Water Radiant Heat
12 = Steam
218 Reversing Valve O/B 0 = O (O/B in Cool)
1 = B (O/B in Heat)
220 Cool Stages / Compressor Stages
200=Conv / 200=HP
0, 1, 2
Note: Only 1 compressor stage available on TH6210U model. Only 1 compressor
stage available on TH6220U model if configured for heat pump.

9
# ISU ISU Name ISU Options (factory default in bold)
221 Heat Stages / Backup Heat Stages Heat Stages: 1, 2
Backup Heat Stages: 0, 1
230 Fan Control in Heat 1 = Equipment Controls Fan
2 = Thermostat Controls Fan
253 Aux/E terminal control (Fixed to
“0” setting on all models except
TH6320U)
0 = Drive both Aux & E together
1 = Aux and E independent
255 Backup Heat Source
(Heat Pump Only)
(TH6320U / TH6220U only)
1 = Electric Forced Air
2 = Gas/Oil Forced Air (or Fossil Forced Air)
256 Emergency Heat Source (TH6320U
only)
1 = Electric Forced Air
2 = Gas/Oil Forced Air (or Fossil Forced Air)
260 External Fossil Fuel Kit
(TH6320U / TH6220U only)
0 = Thermostat Controls Backup Heat
1 = External Fossil Fuel Kit Controls Backup Heat
300 System Changeover 0 = Manual
1 = Automatic
303 Auto Changeover Differential 0 °F to 5 °F
0.0 °C to 2.5 °C
Note: Differential is NOT deadband. Resideo uses an advanced algorithm that
fixes deadband at 0 °F. The differential setting is the minimum number of degrees
from set-point needed to switch from the last mode running (heat or cool) to the
opposite mode when the thermostat is in auto-changeover. This is more advanced
than previous thermostats.
340 Backup Heat Droop 0 = Comfort
2 = 2 °F
3 = 3 °F
4 = 4 °F
5 = 5 °F
6 = 6 °F
7 = 7 °F
8 = 8 °F
9 = 9 °F
10 = 10 °F
11 = 11 °F
12 = 12 °F
13 = 13 °F
14 = 14 °F
15 = 15 °F
Note: 0 (comfort) setting only available if backup heat (ISU 255) is set to electric.
350 Upstage Timer for Backup Heat 0 = Off
1 = 30 minutes
2 = 45 minutes
3 = 60 minutes
4 = 75 minutes
5 = 90 minutes
6 = 2 hours
7 = 3 hours
8 = 4 hours
9 = 5 hours
10 = 6 hours
11 = 8 hours
12 = 10 hours
13 = 12 hours
14 = 14 hours
16 = 16 hours
355 Compressor Lockout / Balance Point -- = Off
5 °F to 60 °F (in 5 °F increments)
15.0 °C to 15.5 °C (in 2.5 °C or 3.0 °C increments)
Note: Use a wired sensor to set compressor lockout / balance point on TH6320U
/ TH6220U.
356 Outdoor Lockout Backup Heat -- = Off
5 °F to 65 °F (in 5 °F increments)
15.0 °C to 18.5 °C (in 2.5 °C or 3.0 °C increments)
365 Compressor Cycle Rate (Stage 1) 1 - 6
366 Compressor Cycle Rate (Stage 2) 1 - 6
370 Heating Cycle Rate (Stage 1) 1 - 12
371 Heating Cycle Rate (Stage 2) 1 - 12
375 Heating Cycle Rate Auxiliary Heat 1 - 12
378 Heating Cycle Rate Emergency Heat
(TH6320U only)
1 - 12
387 Compressor Protection 0 = Off
1 - 5minutes
Advanced setup options (ISU)

10
# ISU ISU Name ISU Options (factory default in bold)
425 Adaptive Intelligent Recovery 0 = No
1 = Yes
Note: Adaptive Intelligent Recovery (AIR) is a comfort setting. Heating or cooling
equipment will turn on earlier, ensuring the indoor temperature will match the
setpoint at the scheduled time.
430 Minimum Cool Setpoint 50 °F to 99 °F (50 °F)
10.0 °C to 37.0 °C (10.0 °C)
431 Maximum Heat Setpoint 40 °F to 90 °F (90 °F)
4.5 °C to 32.0 °C (32.0 °C)
435 Keypad Lockout Series 06 (setting on original
T6 models):
0 = None
1 = Partial
2 = Full
Series 7 (setting current T6 models):
0 = Disabled
1 = Enabled
Note: Due to customer feedback this feature was changed. On series 06
thermostats, you can lockout the thermostat from the ISU the same as you can
from menu lockout.
For series 7 or later, this setting allows the contractor to enable or disable the
lockout feature. When disabled, there is no lockout option under menu.
500 Is Indoor Temperature Sensor
WIRED to your system? (TH6320U /
TH6220U only)
0 = No
1 = Yes
515 Indoor Sensor type
(TH6320U / TH6220U only)
0 = 10k
1 = 20k
520 Which Sensors will be used for
TEMPERATURE Control? (Multiple
Sensors are Averaged) TH6320U /
TH6220U only)
1 = Thermostat Only
2 = Wired Only
3 = Average
702 Number of Air Filters 0- 2
711 Air Filter 1 Replacement Reminder 0 = Off
1 = 10 Run Time Days
2 = 20 Run Time Days
3 = 30 Run Time Days
4 = 45 Run Time Days
5 = 60 Run Time Days
6 = 90 Run Time Days
7 = 120 Run Time Days
8 = 150 Run Time Days
9 = 30 Calendar Days
10 = 45 Calendar Days
11 = 60 Calendar Days
12 = 75 Calendar Days
13 = 3 Calendar Months
14 = 4 Calendar Months
15 = 5 Calendar Months
16 = 6 Calendar Months
17 = 9 Calendar Months
18 = 12 Calendar Months
19 = 15 Calendar Months
712 Air Filter 2 Replacement Reminder 0 = Off
1 = 10 Run Time Days
2 = 20 Run Time Days
3 = 30 Run Time Days
4 = 45 Run Time Days
5 = 60 Run Time Days
6= 90 Run Time Days
7 = 120 Run Time Days
8 = 150 Run Time Days
9 = 30 Calendar Days
10 = 45 Calendar Days
11 = 60 Calendar Days
12 = 75 Calendar Days
13 = 3 Calendar Months
14 = 4 Calendar Months
15 = 5 Calendar Months
16 = 6 Calendar Months
17 = 9 Calendar Months
18 = 12 Calendar Months
19 = 15 Calendar Months
1400 Backlighting 0 = On Demand
1 = Continuous
Note: Common wire needed for continuous.
1401 Backlight brightness 1 - 5
Note: Only displayed if continuous backlight selected.
1410 Clock Format 12 / 24
1415 Daylight Saving Time 0 = Off
1 = On
1420 Temperature Display Offset 3 to 3F (0)
1.5 to 1.5C (0)
Advanced setup options (ISU)