Honeywell VisionPRO Wi-Fi TH8320WF User manual

System Setup
VisionPRO Wi-Fi
Programmable Thermostat
Model TH8320WF
This thermostat works on 24 volt systems. It will NOT work on 120/240 volt systems.
This thermostat contains a Lithium battery which may contain Perchlorate material.
Perchlorate Material—special handling may apply.
See www.dtsc.ca.gov/hazardouswaste/perchlorate
MERCURY NOTICE: Do not place your old thermostat in the trash if it contains
mercury in a sealed tube. Contact the Thermostat Recycling Corporation at www.
thermostat-recycle.org or 1-800-238-8192 for information on how and where to
properly and safely dispose of your old thermostat.
NOTICE: To avoid possible compressor damage, do not run air conditioner if the
outside temperature drops below 50°F (10°C).
69-2733EFS-01
Table of Contents
Wiring .........................................................................2
Setting Functions and Options ...................................3
System Setup .............................................................3
Installer System Test...................................................7
Troubleshooting ..........................................................8

69-2733EFS—01 2
Y2
W2
K
S1
S2
RC
R
W
Y
G
C
RC
R
O/B
Y
G
C
R
W
G
C
Y
HEAT PUMP
CONVENTIONAL
Y2
L
E/AUX
K
S1
S2
MCR34051
Conventional Terminal Letters:
Y2 2nd stage compressor contactor.
W2 2nd stage heat relay.
K Optional wirer save module.
S1 Optional outdoor or remote sensor.
S2 Optional outdoor or remote sensor.
Rc Cooling power. Connect to secondary side
of cooling system transformer.
R Heating power. Connect to secondary side
of heating system transformer.
W 1st stage heat relay.
Y 1st stage compressor contactor.
G Fan relay.
C Common wire from secondary side of
cooling transformer (if 2 transformers).
Heat Pump Terminal Letters:
Y2 2nd stage compressor contactor.
L Heat pump reset (powered continuously
when System is set to Em Heat; system
monitor when set to Heat, Cool or Off).
E/AuxAuxiliary/Emergency heat relay.
K Optional wirer save module.
S1 Optional outdoor or remote sensor.
S2 Optional outdoor or remote sensor.
Rc Cooling power. Connect to secondary side
of cooling system transformer.
R Heating power. Connect to secondary side
of heating system transformer.
O/B Changeover valve for heat pumps.
Y 1st stage compressor contactor.
G Fan relay.
C Common wire from secondary side of
cooling system transformer.
Terminal Designations
Wiring

3 69-2733EFS—01
Setting functions and options
You can change options for a number of system functions. Available functions depend on
the type of system you have. The functions, designated with four-digit numbers, along with
available options are described on pages 3–6
This thermostat is pre-set for a single-stage heating/cooling system.
Setting function 0170 for a heat pump will adjust the default settings.
DONE CANCEL
TUE
aM
6:00
SYSTEM
HEAT
DONE
0120
20
MCR31563
1 Press SYSTEM.
2 Press and hold the two blank keys on either
side of the center blank key for approximately
five seconds until screen changes.
3 Cycle through the functions, press st next to
the four digit number on the left.
4 As needed, change options for any function by
pressing st next to the number on the right.
5 When you have made all changes, press DONE
to save and exit.
System setup
Function Settings & Options
0112 Device Name
This name will
identify the
thermostat when you
view it remotely.
If you register
multiple thermostats,
give each one a
different name.
52 = Thermostat
1 Basement 18 Fireplace 35 Media Room 52 Thermostat
2 Bathroom 19 Foyer 36 Music Room 53 Upper Level
3 Bathroom 1 20 Game Room 37 Nursery 54 Utility Room
4 Bathroom 2 21 Garage 38 Office 55 Walk In Closet
5 Bathroom 3 22 Great Room 39 Office 1 56 Wine Cellar
6 Bedroom 23 Guest Room 40 Office 2 57 Workshop
7 Bedroom 1 24 Gym 41 Pantry 64 Conference Room
8 Bedroom 2 25 Kid's Room 42 Play Room 65 Dressing Room
9 Bedroom 3 26 Kitchen 43 Pool Room 66 Meeting Room
10 Bedroom 4 27 Kitchen 1 44 Porch 67 Machine Room
11 Boat House 28 Kitchen 2 45 Rec Room 68 Open Area 1
12 Bonus Room 29 Laundry Room 46 Sewing Room 69 Open Area 2
13 Computer Room 30 Library 47 Spa 70 Server 1
14 Den 31 Living Room 48 Storage Room 71 Server 2
15 Dining Room 32 Lower Level 49 Studio 72 Stock Room
16 Exercise Room 33 Master Bath 50 Sun Room
17 Family Room 34 Master Bed 51 Theater
0120 Year Setting
(rst two digits) 20 = Year 20xx 21 = Year 21xx
0130 Year Setting
(last two digits) 01–99 (i.e., 2001–2099)
0140 Month Setting 01–12 (i.e., January–December)
0150 Date Setting 01–31
0160 Schedule Options 4 Program schedule is on (7-day programmable).
0 Program schedule is off. Thermostat can not be programmed.

69-2733EFS—01 4
System setup
Function Settings & Options
0165 Restore Schedule
Defaults
0 Continue using programmed schedule.
1 Restore thermostat program to energy saving settings
0170 Select System
Type
If you are not sure of
your heating/cooling
system type or have
other questions,
go to
withermostat.com
1 Heat/cool: Gas, oil or electric heating with central air conditioning.
2 Heat pump: Heat pump without backup or auxiliary heat.
3 Heat only without fan: Gas, oil or electric heat without central air
conditioning.
4 Heat only with fan: Gas, oil or electric heat without central air
conditioning.
5 Heat only (no fan): Gas, oil or hot water heat without central air
conditioning.
6 Cool only: Central air conditioning only.
7 Heat pump: Heat pump with backup or auxiliary heating.
8 Heat/Cool Multiple stages: 2 heat stages (wires on Wand W2), 2
cooling stages (wires on Yand Y2).
9 Heat/Cool Multiple stages: 2 heat stages (wires on Wand W2), 1
cooling stage (wire on Y).
10 Heat/Cool Multiple stages: 1 heat stage (wire on W), 2 cooling stages
(wires on Yand Y2).
11 Heat pump multiple stages: 2 heat stages (wires on Wand W2),
2 cooling stages (wires on Yand Y2) (no aux. heat).
12 Heat pump multiple stages: 3 heat stages (wires on W,W2, and Aux),
2 cooling stages (wires on Yand Y2) (with aux heat).
0173 Heat Pump Type 0 Air to air heat pump
1 Geothermal heat pump
0180 Heating Fan
Control
0 Gas or oil heat: Use this setting if you have a gas or oil heating system
(system controls fan operation).
1 Electric heat: Use this setting if you have an electric heating system
(thermostat controls fan operation).
0190 Heat Pump
Changeover Valve
(for heat pumps
only)
0 Cooling changeover valve: Use this setting if you connected a wire
labeled “O” to the O/B terminal.
1 Heating changeover valve: Use this setting if you connected a wire
labeled “B” to the O/B terminal.
0200 Back-up Heat
Source
0 Electric
1 Fossil fuel
0210 External Fossil
Fuel Kit
0 No
1 Yes
0220 1st stage compres-
sor cycle rate
3 Recommended for most compressors
[Other options: 1, 2, 4, 5 or 6 CPH]
0230 2nd stage com-
pressor cycle rate
0240 Heating Cycle
Rate
5 Gas or oil furnace: Standard gas/oil furnace (less than 90% efficiency).
9 Electric furnace: Electric heating systems.
3 Hot water or high-efficiency furnace: Hot water system or gas furnace
(more than 90% efficiency).
1 Gas/oil steam or gravity system: Steam or gravity heat systems.
[Other options: 2,4,6,7,8,10,11,12]
0250 Heating Cycle
Rate Stage 2
0260 Heating Cycle
Rate Stage 3
0280 Backlight 0 Backlight off, then on for approximately 8 seconds after keypress.
1 Backlight always on low intensity, full bright after keypress.

5 69-2733EFS—01
System setup
Function Settings & Options
0300 Manual/Auto
Changeover
0 Manual changeover (Heat/Cool/Off).
1 Automatic changeover (Heat/Cool/Auto/Off). Automatically turns on Heat
or Cool based on room temperature. Note: System maintains minimum
3°F difference between heat and cool settings.
0310 Auto changeover
deadband
3 Heat/cool temperature 3°F apart (1.5°C)
[Other options: 2-9 (2°F to 9°F/1°C to 5°C)])
0320 Temperature For-
mat (°F/°C)
0 Fahrenheit
1 Celsius
0330 Automatic Daylight
Saving Time Ad-
justment
0 Off
1 On
0340 Remote Temp
Sensor 0 None
1 Outdoor for Display
2 Outdoor for Control
3 Remote Indoor
0346 Dual Fuel Heat
Pump Upstage to
Furnace Timer
0 Disabled
1 30 minutes
3 60 minutes
5 1.5 hours
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
15 16 hours
0347 Droop Temperature
(Steady State) 2 °F (1.0 °C)
[Other options: displayed in °F or °C]
0349 Backup Heat
Manual Droop Tem-
perature
0 Comfort (Off)
1 Economy
0350 Heat Pump Com-
pressor Lockout 0 Off
[Other options: displayed in °F or °C]
0360 Heat Pump Aux
Lockout 0 None
[Other options: displayed in °F or °C]
0500 Filter Change
Reminder
The reminder
appears after
selected number of
days run time not
actual time.
0 Off (no reminder)
1 Reminder after 10-day run time (about 1 calendar month)
2 Reminder after 30-day run time (about 3 calendar months)
3 Reminder after 60-day run time (about 6 calendar months)
4 Reminder after 90-day run time (about 9 calendar months)
5 Reminder after 120-day run time (about 1 calendar year)
6 Reminder after 180-day run time (about 18 calendar months)
7 Reminder after 270-day run time (about 2 calendar years)
8 Reminder after 365-day run time (about 3 calendar years)
0502 Furnace lter
for Run time 0 Counts both heat and cool
1 Counts cool only
0510 Humidier Pad
Replacement Re-
minder
0 Disabled
1 30-day run time (about 3 months)
2 60-day run time (about 6 months)
3 90-day run time (about 9 months)
0520 UV Lamp Replace-
ment Reminder 0 Disabled
1 365 days
2 730 days