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Most Recent Honeywell RTH6400 Questions
I Got Honeywell Rth6400d I Would Like To Programed In Celsius
(Posted by joezizic1 2 years ago)
Can I Change From Fahrenheit To Celsius? On Honeywell Rth 6400 ??
(Posted by shema1 2 years ago)
How To Change To Celsius
how to change my honeywell rth 6400D to celsius?
how to change my honeywell rth 6400D to celsius?
(Posted by spazzkatz 3 years ago)
Ambient Temperature Display Units
can you change the ambient temperature fron Farenheit to Celcius ?
can you change the ambient temperature fron Farenheit to Celcius ?
(Posted by laertica 5 years ago)
How To Open To Replace Batteries
How to open RTH6400D to replace batteries
How to open RTH6400D to replace batteries
(Posted by winston932 7 years ago)
Popular Honeywell RTH6400 Manual Pages
Owner's Manual - Page 1
Quick Installation Guide
RTH6400 Series
Programmable Thermostat 69-2210EF-03
Owner's Manual - Page 2
Call 1-800-468-1502 for the most common system
We are here to help. Installation is preset for wiring assistance before returning the thermostat to match your new thermostat to the store.
69-2210EF-03
ii It is Easy
Label wires and remove your old thermostat
Install and wire your new thermostat
Set your heating/cooling system
-
Owner's Manual - Page 14
Advanced Installation
System setup 13 Wiring 21 Troubleshooting 22 Customer assistance 25 Limited warranty 26
Owner's Manual - Page 15
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 exit and save settings. Function
1
Setting
0
Done
Next
Press DONE to change settings.
M28349
Press NEXT to advance to next function.
13
69-2210EF-03
TROUBLESHOOTING
Owner's Manual - Page 16
...69-2210EF-03
14
TROUBLESHOOTING SETUP
Advanced Installation Guide
Function 1: System type
Press the s or t button to select the type of system you have in your home:
10
WIRING
ASSISTANCE
Done
Next
M28350
...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 17
...
0 Cooling changeover valve: Use this setting if you connected a wire labeled "O" to the O/B W wire terminal (see page 21).
1 Heating changeover valve: Use this setting if you connected a wire labeled "B" to the O/B W wire terminal (see page 21). M28351
15
69-2210EF-03 ASSISTANCE
TROUBLESHOOTING
Press to change setting.
SETUP
WIRING
RTH6400
Function 2: Heat pump changeover valve
Press...
Owner's Manual - Page 18
...if you have an electric heating system (thermostat controls fan operation). M28351
69-2210EF-03
16
SETUP
WIRING
Advanced Installation Guide
Function 3: Heating fan control
Press the s or t button to select your heating system and fan operation: NOTE: If Function 3 does not appear, please turn to the next page to display next function. ASSISTANCE
TROUBLESHOOTING
Press to change setting.
Owner's Manual - Page 19
...
69-2210EF-03
TROUBLESHOOTING
Press to display next function.
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 to the next page to continue.
55
WIRING
ASSISTANCE
Done
Next
M28354
5 Gas or oil furnace: Use this setting if you...
Owner's Manual - Page 20
... between heat and cool settings. TROUBLESHOOTING
Press to select Manual or Auto Changeover:
12 0
WIRING
ASSISTANCE
Done
Next
M28355
0 Manual Changeover: (Heat/Off/Cool)
1 Automatic Changeover: (Heat/Off/Cool/Auto) Automatically turns on heat or cool based on room temperatures. SETUP
Advanced Installation Guide
Function 12: Manual/Auto Changeover
Press the s or t button to change setting.
Owner's Manual - Page 21
...
TROUBLESHOOTING
19
69-2210EF-03 SETUP
WIRING
RTH6400
Function 13: Smart Response® Technology
Press the s or t button to change setting. Press 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.
When correct setting...
Owner's Manual - Page 22
... press DONE to change setting. SETUP
WIRING
Advanced Installation Guide
AFubnocuttioynou1r4n: eTwemthpermatousrteadt isplay
Press the s or t button to select Fahrenheit or Celsius temperature display:
14 0
Done
Next
0 Fahrenheit temperature display (°F) 1 Celsius temperature display (°C)
M28357
Press to exit and save changes.
M28351
ASSISTANCE
TROUBLESHOOTING
69-2210EF-03...
Owner's Manual - Page 23
... 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 ). Wrap B wire with electrical tape.
21
69-2210EF-03 RTH6400
Wiring
If labels do not use C, X or B. SETUP
WIRING
ASSISTANCE
TROUBLESHOOTING
M28418
If wires will be connected to both O and B if you have...
Owner's Manual - Page 24
... and easily. Cannot change
ranges:
• Heat: 40° to 90°F (4.5° to 32°C).
• Cool: 50° to 99°F (10° to Cool
heating and cooling equipment
(see page 14). Temperature Make sure heating and cooling
settings do not temperatures are correctly installed (see page 7).
SETUP
WIRING
Advanced Installation Guide
Troubleshooting
If you have...
Owner's Manual - Page 26
...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
make sure it is set to match your heating and cooling equipment (see page 14). SETUP
Advanced Installation Guide
Troubleshooting
Heating
• Check...
Owner's Manual - Page 27
...
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 time, please remove the battery holder and note your model number and date code before calling.
Accessories/replacement parts
To order, please call Honeywell Customer Care toll-free at 1-800-468-1502. SETUP...
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