Owner's Manual
Page 1
Quick Installation Guide RTH6400 Series Programmable Thermostat 69-2210EF-03
Quick Installation Guide RTH6400 Series Programmable Thermostat 69-2210EF-03
Owner's Manual
Page 15
M28349 Press NEXT to advance to change settings. RTH6400 ASybsotuetmyosuertunpew thermostat Press and hold the s and FAN buttons until the screen changes (approximately 5 seconds). SETUP WIRING ASSISTANCE M28348 Press s or t to next function. 13 69-2210EF-03 TROUBLESHOOTING Function 1 Setting 0 Done Next Press DONE to exit and save settings.
M28349 Press NEXT to advance to change settings. RTH6400 ASybsotuetmyosuertunpew thermostat Press and hold the s and FAN buttons until the screen changes (approximately 5 seconds). SETUP WIRING ASSISTANCE M28348 Press s or t to next function. 13 69-2210EF-03 TROUBLESHOOTING Function 1 Setting 0 Done Next Press DONE to exit and save settings.
Owner's Manual
Page 17
... terminal (see page 21). 1 Heating changeover valve: Use this setting if you connected a wire labeled "B" to change setting. M28351 15 69-2210EF-03 SETUP WIRING RTH6400 Function 2: Heat pump changeover valve Press the s or t button to select whether your changeover valve is selected, press NEXT to display next function. When correct...
... terminal (see page 21). 1 Heating changeover valve: Use this setting if you connected a wire labeled "B" to change setting. M28351 15 69-2210EF-03 SETUP WIRING RTH6400 Function 2: Heat pump changeover valve Press the s or t button to select whether your changeover valve is selected, press NEXT to display next function. When correct...
Owner's Manual
Page 19
... gravity system: Use this setting if you have a steam or gravity heat system. Press to display next function. M28351 17 69-2210EF-03 TROUBLESHOOTING SETUP RTH6400 Function 5: Heating cycle rate Press the s or t button to select your heating system and optimize its operation: NOTE: If Function 5 does not appear, please turn...
... gravity system: Use this setting if you have a steam or gravity heat system. Press to display next function. M28351 17 69-2210EF-03 TROUBLESHOOTING SETUP RTH6400 Function 5: Heating cycle rate Press the s or t button to select your heating system and optimize its operation: NOTE: If Function 5 does not appear, please turn...
Owner's Manual
Page 21
M28351 ASSISTANCE TROUBLESHOOTING 19 69-2210EF-03 When correct setting is selected, press NEXT to change setting. Press to display next function. SETUP WIRING RTH6400 Function 13: Smart Response® Technology Press the s or t button to select Smart Response® Technology: 13 1 Done Next M28356 1 Smart Response® Technology ON 0 Smart Response® Technology OFF NOTE: See Operating Manual for information on Smart Response® Technology.
M28351 ASSISTANCE TROUBLESHOOTING 19 69-2210EF-03 When correct setting is selected, press NEXT to change setting. Press to display next function. SETUP WIRING RTH6400 Function 13: Smart Response® Technology Press the s or t button to select Smart Response® Technology: 13 1 Done Next M28356 1 Smart Response® Technology ON 0 Smart Response® Technology OFF NOTE: See Operating Manual for information on Smart Response® Technology.
Owner's Manual
Page 23
SETUP WIRING ASSISTANCE TROUBLESHOOTING M28418 If wires will be connected to terminal as shown here (see page 6). Wrap bare end of wire with electrical tape and do not match letters on the thermostat, check the chart below and connect to both O and B if you have a heat pump. Do not use . RTH6400 Wiring If labels do not use C, X or B. Connect O wire to O/B W. Wrap B wire with electrical tape. 21 69-2210EF-03 Do not connect both R and Rc terminals, remove metal jumper (see notes, below).
SETUP WIRING ASSISTANCE TROUBLESHOOTING M28418 If wires will be connected to terminal as shown here (see page 6). Wrap bare end of wire with electrical tape and do not match letters on the thermostat, check the chart below and connect to both O and B if you have a heat pump. Do not use . RTH6400 Wiring If labels do not use C, X or B. Connect O wire to O/B W. Wrap B wire with electrical tape. 21 69-2210EF-03 Do not connect both R and Rc terminals, remove metal jumper (see notes, below).
Owner's Manual
Page 25
..." is flashing • Compressor protection feature is closed securely. • Wait 5 minutes for your or warm air in system (see page 15). SETUP WIRING Troubleshooting RTH6400 Heating or • Press SYSTEM button to set system to Cool. Make sure the temperature is set lower than the Inside respond temperature. • Press...
..." is flashing • Compressor protection feature is closed securely. • Wait 5 minutes for your or warm air in system (see page 15). SETUP WIRING Troubleshooting RTH6400 Heating or • Press SYSTEM button to set system to Cool. Make sure the temperature is set lower than the Inside respond temperature. • Press...
Owner's Manual
Page 27
... holder Part No. 50007072-001 Cover plate assembly Part No. 50002883-001 *Use to cover marks left by old thermostats. SETUP ACbuosutotmyoeur 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...
... holder Part No. 50007072-001 Cover plate assembly Part No. 50002883-001 *Use to cover marks left by old thermostats. SETUP ACbuosutotmyoeur 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...
