Honeywell T8400C Support Question
Honeywell T8400C Support Question
Find answers below for this question about Honeywell T8400C.Need a Honeywell T8400C manual? We have 2 online manuals for this item!
Question posted by julcastree on December 17th, 2012
Can You Change The Battery On The T8400c1016
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Related Honeywell T8400C Manual Pages
Owner's Manual - Page 1
M18539
1
69-1490
69-1490 Set
Room
FAN Auto On
SYSTEM Cool Off Heat
M18535
Em Ht Aux Ht
Set
Room
Electronic Thermostat
OWNER'S GUIDE
FAN Auto On
SYSTEM Cool Off Heat Em.Ht.
Owner's Manual - Page 2
... need for you with a more comfortable and convenient living environment.
• Simple and easy to change your temperature setting.
• Large digital display. Batteries are not required because your new thermostat! Congratulations on the purchase of this thermostat in memory.
69-1490
2 Over 100 years of Honeywell engineering expertise went into the making of...
Owner's Manual - Page 3
In cooling, the
fan goes off and on the bottom of the thermostat case.
FAN Auto On
FAN SWITCH
M10273
3
69-1490 Use for most homes. Settings
Setting FAN and SYSTEM Switches
Fan and system settings are controlled ...
Owner's Manual - Page 7
... you leave for work or school also lowers your energy costs.
To raise the temperature setting, press the ▲ key.
Set
Room
M18443
7
69-1490 Changing Temperature Setting
1. Set
Room
M18442
2. When in the heating mode, lowering the temperature at night or during the day can lower your energy costs. To...
Owner's Manual - Page 8
... can be as high as 7% to 33% depending on your home, where you live, the number of energy saving periods you choose and your thermostat to automatically change the temperature setting, you like saving energy, but would like your energy savings temperature settings. If you might want to automatically save energy in...
Owner's Manual - Page 9
... 18% 19 TO 22% 23 TO 33%
COOL
* YOUR SAVINGS DEPENDS ON HOME SIZE AND ACTUAL HEAT LOSS OR GAIN, GEOGRAPHIC LOCATION, FREQUENCY OF TEMPERATURES CHANGE, AND RANGE IN DEGREES OF...
Owner's Manual - Page 10
... setting is too warm or cool.
• Check that the SYSTEM switch on . See equipment manufacturer instructions. Heating or cooling does not come on the thermostat is below 50°F (10°C).
Owner's Manual - Page 11
If you have questions concerning this thermostat, call Honeywell Customer Assistance at 1-800-468-1502, Monday-Friday, 7:00 am-5:30 pm, Central time. For service, contact your local heating and cooling contractor:
11
69-1490
Installation Instructions - Page 1
...could damage the product or cause a hazardous condition.
2. The T8401C Thermostat is fixed at 3 cph. Batteries are not required because setpoints are held permanently by : - INSTALLATION
...) areas such as provided in the trash.
T8400C and T8401C Electronic Thermostats
INSTALLATION INSTRUCTIONS
The T8400C and T8401C Thermostats provide singlestage, non-programmable temperature control for 24V...
Installation Instructions - Page 2
... is adaptable to most 5-wire, 18 to 30 Vac heating-cooling systems. Refer to 30 Vac heating-cooling systems.
The T8401C Thermostat is powered directly from affecting the thermostat; T8400C AND T8401C ELECTRONIC THERMOSTATS
YES NO
NO 5 FEET
[1.5 METERS]
NO
M10308
Fig. 1. See Fig. 3.
1 3-7/8 IN.
DECORATOR COVER PLATE (SELECT MODELS).
2 DRILL 3/16 INCH HOLES...
Installation Instructions - Page 3
... heat-cool wiring diagram in oil heating/electric cooling system. In cooling, the fan starts and stops with the heating equipment.
3
69-1480-1 T8400C AND T8401C ELECTRONIC THERMOSTATS
KEEP WIRING IN SHADED AREA
ALTERNATE MOUNTING SCREW HOLE
W
Y G
R C
MOUNTING SCREW HOLE
ALTERNATE MOUNTING SCREW HOLE
WIRING ENTRANCE HOLE
MOUNTING SCREW HOLE
M11023
Fig...
Installation Instructions - Page 4
... ; NOTE:
M14686
In installer setup mode only, each press of the thermostat to change the setpoint several degrees. See Fig. 8. 2. To increase the temperature setpoint press the... s key. To decrease the temperature setpoint press the t key.
T8400C AND T8401C ELECTRONIC THERMOSTATS
...
Installation Instructions - Page 5
...change...After exiting installer setup mode, change cooling algorithm to raise the ...an electric heat thermostat, the fan starts...changes, exit installer setup mode and return to display cooling algorithm configuration default. Press the s key again to the thermostat...thermostat, the fan starts immediately.
3. Press the s key. To change...
Press the t key to change the heat cycle rate, press the...
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