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 jstChr on September 14th, 2014
What Thermostat Would Compare To A Honeywell T8400c
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Current Answers
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
... convenient living environment.
• Simple and easy to change your temperature setting.
• Large digital display. Batteries are not required because your new thermostat! Over 100 years of Honeywell engineering expertise went into the making of your temperature settings are held permanently in an effort to provide you to use. Congratulations on...
Owner's Manual - Page 3
... quality. Settings
Setting FAN and SYSTEM Switches
Fan and system settings are controlled by using FAN and SYSTEM switches located on the bottom of the thermostat case.
FAN Auto On
FAN SWITCH
M10273
3
69-1490
Owner's Manual - Page 8
...% 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 might want to consider purchasing the Honeywell Chronotherm® Programmable Thermostat.
Energy Savings
You can be conveniently programmed to automatically save energy.
69-1490
8 Savings can save energy...
Owner's Manual - Page 10
... operate cooling when outside temperature is too warm or cool.
• Check that the SYSTEM switch on .
Heating or cooling does not come on the thermostat is set to Heat or Cool.
• Check the system fuse or circuit breaker and replace or reset if necessary.
• Check for air movement...
Owner's Manual - Page 11
For service, contact your local heating and cooling contractor:
11
69-1490 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.
Owner's Manual - Page 12
Registered Trademark
69-1490 J.H. 9-00
6ww9w-1.h4o9ne0ywell.com/yourhome
12 Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422
Scarborough, Ontario M1V 4Z9
Copyright © 2000 Honeywell
All Rights Reserved
® U.S. Automation and Control Solutions
Honeywell International Inc.
Installation Instructions - Page 1
... also includes two decorator cover plates for wiring and mounting thermostat) and owner's guide.
Registered Trademark Copyright © 2002 Honeywell •
• All Rights Reserved
69- 1480- 1 T8400C and T8401C Electronic Thermostats
INSTALLATION INSTRUCTIONS
The T8400C and T8401C Thermostats provide singlestage, non-programmable temperature control for 24V heating...
Installation Instructions - Page 2
....
Typical location of straight or wraparound wiring connections; Mounting decorator cover plate and wallplate to Wall
IMPORTANT Level only for wiring the T8400C and T8401C Thermostats. T8400C AND T8401C ELECTRONIC THERMOSTATS
YES NO
NO 5 FEET
[1.5 METERS]
NO
M10308
Fig. 1. Mounting Decorator Cover Plate and Wallplate to wall.
69-1480-1
2 Select the two mounting holes...
Installation Instructions - Page 3
... air circulation and air quality. When using the switches located at the top of the thermostat and wallplate.
2.
Swing down the thermostat and press the lower edge of the thermostat case.
Use for most systems). 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...
Installation Instructions - Page 4
... turns it on the digital display, press either the s or t key once. T8400C AND T8401C ELECTRONIC THERMOSTATS
Slide the FAN switch in °F, set the temperature setpoint to 52°F.
press... °C, set the temperature setpoint to change the setpoint several degrees.
Heat: The thermostat controls the heating system.
To decrease the temperature setpoint press the t key.
If...
Installation Instructions - Page 5
...lower the temperature setting several degrees above the room temperature. When using an electric heat thermostat, the fan starts and stops with the heating equipment.
Press the t key to...and the FAN switch to lower the temperature setting below 50°F (10°C). T8400C AND T8401C ELECTRONIC THERMOSTATS
10. Press the s key to raise the temperature setting above the room temperature....
Installation Instructions - Page 6
Automation and Control Solutions
Honeywell
Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North
35 Dynamic Drive
Golden Valley, MN 55422
Scarborough, Ontario
M1V 4Z9
69-1480-1 G.H. Rev. 2-02
www.honeywell.com/yourhome
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