Honeywell RTH6400 Support Question
Honeywell RTH6400 Support Question
Find answers below for this question about Honeywell RTH6400.Need a Honeywell RTH6400 manual? We have 1 online manual for this item!
Question posted by imagine585 on August 31st, 2016
Rth6400d Wiring Question
My old thermostat had a black wire going to terminal C. Where do I put the black wire on my new HW RTH6400D?
Current Answers
Related Honeywell RTH6400 Manual Pages
Owner's Manual - Page 1
Quick Installation Guide
RTH6400 Series
Programmable Thermostat 69-2210EF-03
Owner's Manual - Page 2
Installation is preset for wiring assistance before returning the thermostat to match your new 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 heating/cooling system
-
Owner's Manual - Page 4
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.
Owner's Manual - Page 6
4 Separate Wallplate from new thermostat. Pull here to remove wallplate from New Thermostat
Remove battery holder. Wallplate
M28343
69-2210EF-03
4
Owner's Manual - Page 7
5 Insert Quick Reference Card
Insert quick reference card into slot in back of thermostat.
M2834
Thermostat
M28344
5
69-2210EF-03
Owner's Manual - Page 10
8 Install Batteries
Install two AA alkaline batteries. Back of thermostat
M28346
69-2210EF-03
8
Owner's Manual - Page 11
9 Install Thermostat onto Wallplate
Install thermostat onto the wallplate on the wall. M28347
9
69-2210EF-03
Owner's Manual - Page 13
...is ... If your system type is:
q Single Stage Heat and Cool
Congratulations, you have other questions, call us toll-free at 1-800-468-1502. This thermostat works on 24 volt or 750 mV systems. It will NOT work on page 13 to match ...your thermostat to provide heating.
If you are not sure of your system type. *Heat Pump-an air ...
Owner's Manual - Page 15
Function
1
Setting
0
Done
Next
Press DONE 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 exit and save settings. M28349
Press NEXT to advance to next function.
13
69-2210EF-03
TROUBLESHOOTING
Owner's Manual - Page 16
... 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
0 Heating & cooling: Gas, oil or electric heating with central air conditioning.
1 Heat pump:...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
ASSISTANCE
TROUBLESHOOTING
Press to the O/B W wire terminal (see page 21).
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 18
... 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).
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...
Owner's Manual - Page 19
...this setting if you have a steam or gravity heat system. 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...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 have a ...
Owner's Manual - Page 21
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 ...
Owner's Manual - Page 23
... both R and Rc terminals, remove metal jumper (see notes, below). 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 and connect to terminal as shown here (see page 6). SETUP
WIRING
ASSISTANCE
TROUBLESHOOTING
M28418
If wires will be connected to...
Owner's Manual - Page 24
... to match your
to 37°C). ASSISTANCE
TROUBLESHOOTING
69-2210EF-03
22
SETUP
WIRING
Advanced Installation Guide
Troubleshooting
If you have difficulty with your heating equipment (see ...; Check Function 1: System Type to
system setting make sure it is set to match your thermostat, please try the following suggestions. Cannot change
ranges:
• Heat: 40° to 90...
Owner's Manual - Page 25
... to respond. Wait 5 minutes for your or warm air in heat mode, it is engaged.
cool mode
ASSISTANCE
TROUBLESHOOTING
23
69-2210EF-03 SETUP
WIRING
Troubleshooting
RTH6400
Heating or
• Press SYSTEM button to set system to Cool. Make sure the temperature
does not
is set higher than the Inside temperature.
•...
Owner's Manual - Page 26
Check to make sure
turn off)
bare wires are not touching each
other (see page 6). WIRING
ASSISTANCE
TROUBLESHOOTING
69-2210EF-03
24 Heating system• Check Function 1: System Type to
is running at the
make sure ...is set to match your
cool mode
heating and cooling equipment
(see page 14).
same time (or • Grasp and pull thermostat away
heat does not from wallplate.
Owner's Manual - Page 27
... holder and note your model number and date code before calling.
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. SETUP
ACbuosutotmyoeur ransseiwsttahnecremostat
RTH6400
For assistance with this product, please visit http://DIYthermostats.honeywell.com...
Owner's Manual - Page 30
Contact your old thermostat in the trash if it contains mercury in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers.
® U.S. US Patent No. CAUTION: To ...
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