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TH8320ZW

Touch-screen Thermostat

Installation 

Guide

® U.S. Registered Trademark.  

US Patent No. 6,574,581, 6,975,958, 7,114,554,  

7,346,467, 7,636,604, 7,693,582, 7,788,936, 

7,845,576, and other patents pending.

Copyright © 2013 Honeywell International Inc.  

All rights reserved.

69-2486-07

System Types

•  Gas, oil, or electric heat with air 

conditioning

•  Warm air, hot water, high  

efficiency furnaces, heat  

pumps, steam, gravity

•  Heat only — including power to open 

and close zone valves (Series 20), and 

normally open zone valves

•  Heat only with fan

•  Cool only

•  750 mV heating systems

This manual covers the TH8320ZW.

This thermostat contains a Lithium battery which may contain Perchlorate material.

Perchlorate Material—special handling may apply.  

See www.dtsc.ca.gov/hazardouswaste/perchlorate

Need Help?

For assistance with this product please visit 

http://customer.honeywell.com

or call Honeywell Customer Care toll-free at 

1-800-468-1502

Summary of Contents for TH8320ZW

Page 1: ...high efficiency furnaces heat pumps steam gravity Heat only including power to open and close zone valves Series 20 and normally open zone valves Heat only with fan Cool only 750 mV heating systems This manual covers the TH8320ZW This thermostat contains a Lithium battery which may contain Perchlorate material Perchlorate Material special handling may apply See www dtsc ca gov hazardouswaste perch...

Page 2: ...tructions regarding recycling and proper disposal Grasp top and bottom of wallplate and pull to remove from thermostat CAUTION ELECTRICAL HAZARD Can cause electrical shock or equipment damage Disconnect power before beginning installation Drill 3 16 holes for drywall Drill 7 32 holes for plaster Wall anchors Wire hole Mounting screws Must be installed by a trained experienced technician Read these...

Page 3: ...torage the thermostat is shipped with a plastic tab inserted in the battery holder This tab must be removed during installa tion Simply pull the plastic tab out of the battery tray Make sure that the battery tray is fully inserted into the thermostat Push excess wire back into the wall opening Plug wall opening with non flammable insulation Remove factory installed jumper only for two transformer ...

Page 4: ...ing system transformer C Common wire from secondary side of cooling system transformer Y 1st stage compressor contactor Y2 2nd stage compressor contactor Aux Auxiliary heat relay G Fan relay E Emergency heat relay L Heat pump reset powered continu ously when System is set to Em Heat system monitor when set to Heat Cool or Off O B Changeover valve for heat pumps K Optional THP9045 Wiring Module Ter...

Page 5: ...1 R R Rc joined by jumper W Heat relay G Fan relay C 24VAC common 3 Cool Only System Rc Power 1 R R Rc joined by jumper Y Compressor contactor G Fan relay C 24VAC common 3 K Optional THP9045 Wiring Module Terminal 9 2H 2C System 2 transformers Y2 Cool relay 2 W2 Heat relay 2 Rc Power cooling transformer 1 2 R Power heating transformer 1 2 W Heat relay 1 Y Cool relay 1 G Fan relay C 24VAC common 3 ...

Page 6: ... thermostat with slots in wallplate then push gently until thermostat snaps into place Mount thermostat Set date and time Press st to set time Press st to set date Press st to set month Press st to set year Installer setup Press DONE to save changes Press DONE to save and exit 1 Press SYSTEM 2 Press and hold these two buttons until the display changes 3 Change settings as required see pages 7 9 M3...

Page 7: ...ly 7 2 heat 1 cool heat pump with aux heat 8 2 heat 2 cool multistage conventional 9 2 heat 1 cool multistage conventional 10 1 heat 2 cool multistage conventional 11 2 heat 2 cool heat pump no aux heat 12 3 heat 2 cool heat pump with aux heat 0180 Fan control heating 0 Gas Oil heat equipment controls heating fan 1 Electric furnace thermostat controls heating fan 0190 Changeover valve O B terminal...

Page 8: ...nection 0300 Manual Auto changeover 0 Manual changeover Heat Cool Off 1 Automatic changeover Heat Cool Auto Off 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 display 0 Fahrenheit 1 Celsius 0330 Daylight savings 1 Auto change to daylight savings time through 2007 and for areas that do not use the new 2008 DST calendar ...

Page 9: ...at ends Other options 30 60 120 0660 Extended fan timer cool 0 Off 90 Fan runs for 90 seconds after call for cooling ends Other options 30 60 120 0670 Keypad lock 0 Keypad unlocked fully functional 1 Partially locked access to temperature settings only 2 Fully locked 0680 Heat temperature control 2 Standard temperature control recommended 1 Choose if room is warmer than set temperature 3 Choose if...

Page 10: ...is set for heat pump or if Function 0180 is set to 1 2 Second stage heat turns on 4 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 System test System status CAUTION EQUIPMENT DAMAGE HAZARD Compressor protection is bypassed dur ing testing To prevent equipment damage avoid cycling the compressor quickly Installer system test...

Page 11: ...TH8320ZW 11 69 2486 07 F M32422 10 Wait 3 To remove the thermostat from the Z Wave network select 0 Z Wave enrollment F M32425 10 DONE 1 F M32424A 10 14 ...

Page 12: ...eturn route is acquired from the primary controller The thermostat then uses this return route to access the distant node The association is a connection between primary and second ary devices It is used to determine the relationship of devices in the network Both primary and secondary controllers can set up associations The thermostat supports one association grouping and five nodes can be associ...

Page 13: ...of the thermostat After the message is received by the thermostat the thermostat mode change is changed to desired value if this value is possible Seven possible modes are available for the thermostat Heat Cool Off Auto Energy Saving Heat Energy Saving Cool Em Heat The number of allowed selections depends on the actual configuration of the thermostat The thermostat uses Thermostat Mode Supported r...

Page 14: ...ire and the module is designed to receive the signal from the K terminal split that signal and reroute it to operate the compressor and or fan for normal operation See the THP9045 manual for further details Optional THP9045 Wiring Module Temperature Ranges Heat 40 to 90 F 4 5 to 32 C Cool 50 to 99 F 10 to 37 C Operating Ambient Temperature 0 to 120 F 18 to 48 9 C Shipping Temperature 30 to 150 F 3...

Page 15: ... not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one of the following mea sures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment i...

Page 16: ...nd Control Solutions U S Registered Trademark US Patent No 6 574 581 6 975 958 7 114 554 7 346 467 7 636 604 7 693 582 7 788 936 7 845 576 and other patents pending 2013 Honeywell International Inc 69 2486 07 M S Rev 01 13 Printed in United States Z Wave is a registered trademark of Zensys Inc and or its subsidiaries ...

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