Honeywell TH8320WF Wi-Fi Programmable Thermostat
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).
Wiring
Terminal Designations
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 the 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/Aux Auxiliary/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
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.
- Press SYSTEM.
- Press and hold the two blank keys on either side of the center blank key for approximately five seconds until the screen changes.
- Cycle through the functions, and press st next to the four-digit number on the left.
- As needed, change options for any function by pressing st next to the number on the right.
- When you have made all changes, press DONE to save and exit.
System setup
| 0112 | Device 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 |
|
| This name will identify the thermostat when you view it remotely. | |||
| If you register multiple thermostats, give each one a different name. | |||
| 0120 | Year Setting
(first 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
0 |
Program schedule is on (7-day programmable).
Program schedule is off. The thermostat can not be programmed. |
| 0165 Restore Schedule
Defaults |
0
1 |
Continue using programmed schedule.
Restore thermostat program to energy-saving settings |
|
| 0170 Select System | 1 | Heat/cool: Gas, oil or electric heating with central air conditioning. | |
| 2
3
4
5
6 |
Heat pump: Heat pump without backup or auxiliary heat.
Heat only without fan: Gas, oil or electric heat without central air conditioning. Heat only with fan: Gas, oil or electric heat without central air conditioning. Heat only (no fan): Gas, oil or hot water heat without central air conditioning. Cool only: Central air conditioning only. |
||
| Type | |||
| If you are not sure of your heating/cooling system type or have other questions,
go to wifithermostat.com |
|||
| 7 | Heat pump: Heat pump with backup or auxiliary heating. | ||
| 8 | Heat/Cool Multiple stages: 2 heat stages (wires on W and W2), 2 | ||
| cooling stages (wires on Y and Y2). | |||
| 9 | Heat/Cool Multiple stages: 2 heat stages (wires on W and W2), 1 | ||
| cooling stage (wire on Y). | |||
| 10 | Heat/Cool Multiple stages: 1 heat stage (wire on W), 2 cooling stages | ||
| (wires on Y and Y2). | |||
| 11 | Heat pump multiple stages: 2 heat stages (wires on W and W2), | ||
| 2 cooling stages (wires on Y and Y2) (no aux. heat). | |||
| 12 | Heat pump multiple stages: 3 heat stages (wires on W, W2, and Aux), 2 cooling stages (wires on Y and Y2) (with aux heat). | ||
| 0173 Heat Pump Type | 0 | Air to air heat pump | |
| 1 | Geothermal heat pump | ||
| 0180 Heating Fan Control | 0
1 |
Gas or oil heat: Use this setting if you have a gas or oil heating system (system controls fan operation).
Electric heat: Use this setting if you have an electric heating system (thermostat controls fan operation). |
|
| 0190 Heat Pump | 0 | Cooling changeover valve: Use this setting if you connected a wire | |
| labeled “O” to the O/B terminal. | |||
| Changeover Valve | |||
| 1 | Heating changeover valve: Use this setting if you connected a wire | ||
| (for heat pumps | |||
| labeled “B” to the O/B terminal. | |||
| only) | |||
| 0200 Back-up Heat | 0 | Electric | |
| 1 | Fossil fuel | ||
| Source | |||
| 0210 External Fossil Fuel Kit | 0
1 |
No 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
9 3
1 |
Gas or oil furnace: Standard gas/oil furnace (less than 90% efficiency).
Electric furnace: Electric heating systems. Hot water or high-efficiency furnace: Hot water system or gas furnace (more than 90% efficiency). 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. |
| 0300 Manual/Auto
Changeover |
0
1 |
Manual changeover (Heat/Cool/Off).
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
1 |
Fahrenheit Celsius | |
| 0330 Automatic Daylight Saving Time Ad– justment | 0
1 |
Off On | |
| 0340 Remote Temp Sensor | 0
1 2 3 |
None
Outdoor for Display Outdoor for Control Remote Indoor |
|
| 0346 Dual Fuel Heat
Pump Upstage to Furnace Timer |
0
1 3 5 6 7 8 |
Disabled 30 minutes
60 minutes 1.5 hours 2 hours 3 hours 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
1 |
Comfort (Off) 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
1 2 3 4 5 6 7 8 |
Off (no reminder)
Reminder after 10-day run time (about 1 calendar month) Reminder after 30-day run time (about 3 calendar months) Reminder after 60-day run time (about 6 calendar months) Reminder after 90-day run time (about 9 calendar months) Reminder after 120-day run time (about 1 calendar year) Reminder after 180-day run time (about 18 calendar months) Reminder after 270-day run time (about 2 calendar years) Reminder after 365-day run time (about 3 calendar years) |
|
| 0502 Furnace filter
for Run time |
0
1 |
Counts both heat and cool Counts cool only | |
| 0510 Humidifier Pad
Replacement Re- minder |
0
1 2 3 |
Disabled
30-day run time (about 3 months) 60-day run time (about 6 months) 90-day run time (about 9 months) |
|
| 0520 UV Lamp Replace-
ment Reminder |
0
1 2 |
Disabled 365 days
730 days |
|
| 0530 | Smart Response Technology | 1
0 |
On Off |
| 0580 | Compressor protection | 5 | 5 minute compressor off time
[Other options: 0, 1, 2, 3 or 4-minute off time] |
| 0600 | Heat temperature range stop | 90 | Max. heat temperature setting is 90°F (32°C) [Other options: 40-89°F (4°C to 32°C)] |
| 0610 | Cool temperature range stop | 50 | Min. cool temperature setting is 50°F (10°C) [Other options: 51-99°F (11°C to 37°C)] |
| 0640 | Clock Format | 12
24 |
12-hour clock (i.e., “3:30 pm”)
24-hour clock (i.e., “15:30”) |
| 0650 Extended fan
timer (heat) |
0
90 |
Off
Fan runs for 90 seconds after call for heat ends [Other options: 30, 60, 120] |
|
| 0660 Extended fan
timer (cool) |
0
90 |
Off
Fan runs for 90 seconds after call for cooling ends [Other options: 30, 60, 120] |
|
| 0670 Keypad lock | 0
1 2 |
Keypad unlocked (fully functional)
Partially locked (access to temperature settings only) Fully locked |
|
| 0680 Heat temperature control | 2
1 3 |
Standard temperature control (recommended) Choose if room is warmer than set temperature Choose if room does not reach set temperature | |
| 0690 Cool temperature control | 2
1 3 |
Standard temperature control (recommended) Choose if room is cooler than set temperature Choose if room does not reach set temperature | |
| 0695 Finish On High Heat Stage | 0
1 |
No Yes | |
| 0696 Finish On High Cool Stage | 0
1 |
No Yes | |
| 0700 Temperature
display offset |
0 | Thermostat displays actual room temperature
[Other options: -3, -2, -1, 1, 2, 3°F offset (-1.5°C to 1.5°C)] |
|
| 0710 | Restore Original Settings | 0
1 |
No
Disconnects thermostat from Wi-Fi and restores original settings (erases customizations). |
| 0890 | Wi-Fi On/Off | 1
0 |
Wi-Fi is on and can be connected to a Wi-Fi network.
Wi-Fi is off. Thermostat cannot be connected to a Wi-Fi network. If you are not connecting the thermostat to a Wi-Fi network this will remove the text “Wi-Fi Setup” from the messaging center. |
| 0900 | Wi-Fi Connection | 1
0 |
Connected to Wi-Fi network. This is set automatically when the thermostat is connected to the Wi-Fi network.
Set to 0 to disconnect from the Wi-Fi network. |
Installer System Test
- Cooling system 0 Compressor and fan turn off
- 1 Compressor and fan turn on
- 2 Second stage compressor turns on
- 2 Fan system 0 Fan turns off
- Fan turns on
- Heating system 0 Heat and fan turn off
- 1 Heat turns on (fan on if Function 0170 is set for heat pump, or if Function 0180 is set to “1”)
- 2 Second stage heat turns on
- Emergency heating system
- 0 Em Heat and fan turn off
- 1 Em Heat and fan turn on
- 2 Second stage heat turns on (Auxiliary heat)
CAUTION: EQUIPMENT DAMAGE HAZARD. Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.
Troubleshooting
If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily.
Display is blank
- Check the circuit breaker and reset if necessary.
- Make sure the power switch at the heating and cooling system is on.
- Make sure the furnace door is closed securely.
- Make sure C wire is connected.
“Wait” appears on the screen
- The compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor.
The button on the lower right of the screen is blank
- This button will remain blank unless the furnace filter change reminder is activated.
The red light is on
- If the thermostat is in Emergency Heat mode the red light is normal. It shows that the thermostat is in emergency heat mode.
The heating or cooling system does not respond
- Check the circuit breaker and reset if necessary.
- Make sure the power switch at the heating & cooling system is on.
- Make sure the furnace door is closed securely.
- If “Wait” is displayed, the compressor protection timer is on. Wait 5 minutes for the system to restart safely, without damaging the compressor.
The heating system is running in cool mode
- Check Function 0170: System Type to make sure it is set to match your heating and cooling equipment (see page 4).
Automation and Control Systems
Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422
http://customer.honeywell.com
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Reference
Download Manual:
Honeywell TH8320WF Wi-Fi Programmable Thermostat System Setup Guide
Honeywell TH8320WF Wi-Fi Programmable Thermostat System Setup Guide
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