Owner's Manual
Page 2
Call 1-800-468-1502 for the most common system We are here to help. It is Easy Label wires and remove your old thermostat Install and wire your new thermostat Set your new thermostat to match your heating/cooling system - Installation is preset for wiring assistance before returning the thermostat to the store. 69-2210EF-03 ii
Call 1-800-468-1502 for the most common system We are here to help. It is Easy Label wires and remove your old thermostat Install and wire your new thermostat Set your new thermostat to match your heating/cooling system - Installation is preset for wiring assistance before returning the thermostat to the store. 69-2210EF-03 ii
Owner's Manual
Page 4
Old thermostat Cover 69-2210EF-03 2 M28099 Leave wallplate in place Is there a sealed tube containing mercury? If so, see back cover for proper disposal instructions. 2 Remove Old Thermostat Remove old thermostat but leave wallplate with wires attached.
Old thermostat Cover 69-2210EF-03 2 M28099 Leave wallplate in place Is there a sealed tube containing mercury? If so, see back cover for proper disposal instructions. 2 Remove Old Thermostat Remove old thermostat but leave wallplate with wires attached.
Owner's Manual
Page 6
Pull here to remove wallplate from New Thermostat Remove battery holder. Wallplate M28343 69-2210EF-03 4 4 Separate Wallplate from new thermostat.
Pull here to remove wallplate from New Thermostat Remove battery holder. Wallplate M28343 69-2210EF-03 4 4 Separate Wallplate from new thermostat.
Owner's Manual
Page 7
M2834 Thermostat M28344 5 69-2210EF-03 5 Insert Quick Reference Card Insert quick reference card into slot in back of thermostat.
M2834 Thermostat M28344 5 69-2210EF-03 5 Insert Quick Reference Card Insert quick reference card into slot in back of thermostat.
Owner's Manual
Page 10
Back of thermostat M28346 69-2210EF-03 8 8 Install Batteries Install two AA alkaline batteries.
Back of thermostat M28346 69-2210EF-03 8 8 Install Batteries Install two AA alkaline batteries.
Owner's Manual
Page 11
9 Install Thermostat onto Wallplate Install thermostat onto the wallplate on the wall. M28347 9 69-2210EF-03
9 Install Thermostat onto Wallplate Install thermostat onto the wallplate on the wall. M28347 9 69-2210EF-03
Owner's Manual
Page 13
... on multi-stage heat pump systems or 120/240 Volt systems. 11 69-2210EF-03 This thermostat works on 24 volt or 750 mV systems. It will NOT work on page 13 to match your thermostat to provide heating. 11 If your system type is: q Single Stage Heat and Cool Congratulations, you...
... on multi-stage heat pump systems or 120/240 Volt systems. 11 69-2210EF-03 This thermostat works on 24 volt or 750 mV systems. It will NOT work on page 13 to match your thermostat to provide heating. 11 If your system type is: q Single Stage Heat and Cool Congratulations, you...
Owner's Manual
Page 15
Function 1 Setting 0 Done Next Press DONE to next function. 13 69-2210EF-03 TROUBLESHOOTING M28349 Press NEXT to advance to exit and save settings. SETUP WIRING ASSISTANCE M28348 Press s or t to change settings. RTH6400 ASybsotuetmyosuertunpew thermostat Press and hold the s and FAN buttons until the screen changes (approximately 5 seconds).
Function 1 Setting 0 Done Next Press DONE to next function. 13 69-2210EF-03 TROUBLESHOOTING M28349 Press NEXT to advance to exit and save settings. SETUP WIRING ASSISTANCE M28348 Press s or t to change settings. RTH6400 ASybsotuetmyosuertunpew thermostat Press and hold the s and FAN buttons until the screen changes (approximately 5 seconds).
Owner's Manual
Page 16
... or electric heating without central air conditioning. (Use this setting if you could turn the fan on and off with a fan switch on your old thermostat.) Press to display next function. When correct setting is selected, press NEXT to change setting.
... or electric heating without central air conditioning. (Use this setting if you could turn the fan on and off with a fan switch on your old thermostat.) Press to display next function. When correct setting is selected, press NEXT to change setting.
Owner's Manual
Page 18
... 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).
... 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).
Owner's Manual
Page 23
Wrap B wire with electrical tape. 21 69-2210EF-03 Do not connect both R and Rc terminals, remove metal jumper (see notes, below and connect to terminal as shown here (see page 6). SETUP WIRING ASSISTANCE TROUBLESHOOTING M28418 If wires will be connected to O/B W. Connect O wire to both O and B if you have a heat pump. RTH6400 Wiring If labels do not use C, X or B. Wrap bare end of wire with electrical tape and do not match letters on the thermostat, check the chart below ). Do not use .
Wrap B wire with electrical tape. 21 69-2210EF-03 Do not connect both R and Rc terminals, remove metal jumper (see notes, below and connect to terminal as shown here (see page 6). SETUP WIRING ASSISTANCE TROUBLESHOOTING M28418 If wires will be connected to O/B W. Connect O wire to both O and B if you have a heat pump. RTH6400 Wiring If labels do not use C, X or B. Wrap bare end of wire with electrical tape and do not match letters on the thermostat, check the chart below ). Do not use .
Owner's Manual
Page 24
... change ranges: • Heat: 40° to 90°F (4.5° to 32°C). • Cool: 50° to 99°F (10° to match your thermostat, please try the following suggestions. Temperature Make sure heating and cooling settings do not temperatures are correctly installed (see page 7). SETUP WIRING Advanced Installation Guide...
... change ranges: • Heat: 40° to 90°F (4.5° to 32°C). • Cool: 50° to 99°F (10° to match your thermostat, please try the following suggestions. Temperature Make sure heating and cooling settings do not temperatures are correctly installed (see page 7). SETUP WIRING Advanced Installation Guide...
Owner's Manual
Page 26
Check to make sure turn off) bare wires are not touching each other (see page 6). same time (or • Grasp and pull thermostat away heat does not from wallplate. WIRING ASSISTANCE TROUBLESHOOTING 69-2210EF-03 24 Heating system• Check Function 1: System Type to is running at the ...
Check to make sure turn off) bare wires are not touching each other (see page 6). same time (or • Grasp and pull thermostat away heat does not from wallplate. WIRING ASSISTANCE TROUBLESHOOTING 69-2210EF-03 24 Heating system• Check Function 1: System Type to is running at the ...
Owner's Manual
Page 27
... ransseiwsttahnecremostat RTH6400 For assistance with this product, please visit http://DIYthermostats.honeywell.com or call Honeywell Customer Care toll-free at 1-800-468-1502. Accessories/replacement parts To order, please call Honeywell Customer Care toll-free at 1-800-468-1502. WIRING ASSISTANCE TROUBLESHOOTING... 25 69-2210EF-03 Battery holder Part No. 50007072-001 Cover plate assembly Part No. 50002883-001 *Use to cover marks left by old thermostats. To save ...
... ransseiwsttahnecremostat RTH6400 For assistance with this product, please visit http://DIYthermostats.honeywell.com or call Honeywell Customer Care toll-free at 1-800-468-1502. Accessories/replacement parts To order, please call Honeywell Customer Care toll-free at 1-800-468-1502. WIRING ASSISTANCE TROUBLESHOOTING... 25 69-2210EF-03 Battery holder Part No. 50007072-001 Cover plate assembly Part No. 50002883-001 *Use to cover marks left by old thermostats. To save ...
Owner's Manual
Page 30
Rev. 08-08 Registered Trademark. Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 http://DIYthermostats.honeywell.com Printed in a sealed tube. US Patent No. MERCURY NOTICE: Do not ... recycled paper containing at least 10% post-consumer paper fibers. ® U.S. D542,677 and other patents pending. © 2008 Honeywell International Inc. 69-2210EF-03 M.S. Contact your old thermostat in the trash if it contains mercury in U.S.A.
Rev. 08-08 Registered Trademark. Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 http://DIYthermostats.honeywell.com Printed in a sealed tube. US Patent No. MERCURY NOTICE: Do not ... recycled paper containing at least 10% post-consumer paper fibers. ® U.S. D542,677 and other patents pending. © 2008 Honeywell International Inc. 69-2210EF-03 M.S. Contact your old thermostat in the trash if it contains mercury in U.S.A.