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 Dwarzjame on April 27th, 2014
What Replaces Honeywell Thermostat 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
... at a glance.
• No need for you with a more comfortable and convenient living environment.
• Simple and easy to change 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 your temperature setting.
• Large digital display.
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 First set the FAN switch:
Auto: Normal setting for improved air
circulation and air quality.
Use ...
Owner's Manual - Page 8
... automatically change the temperature setting, you might want to automatically save energy.
69-1490
8 Savings can be conveniently programmed to consider purchasing the Honeywell Chronotherm® Programmable Thermostat. You can also save energy in the heating mode by raising the temperature setting during the day. Energy Savings
You can save energy with...
Owner's Manual - Page 10
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 at the register.
• Check power to the heating or cooling equipment.
• Adjust the temperature ...
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
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. Registered Trademark
69-1490 J.H. 9-00
6ww9w-1.h4o9ne0ywell.com/yourhome
12 Automation and Control Solutions
Honeywell International Inc.
Installation Instructions - Page 1
...; 2002 Honeywell •
• All Rights Reserved
69- 1480- 1 Cooling cycle rate is suitable for your application.
3. Contact your old control in an area with manual changeover from the sun or appliances. - concealed pipes and chimneys. -
Failure to make sure the product is fixed at the factory.
T8400C and T8401C Electronic Thermostats
INSTALLATION...
Installation Instructions - Page 2
... and screws provided.
5. Mounting decorator cover plate and wallplate to prevent drafts from the system transformer and is powered through the wallplate entrance hole.
3. T8400C AND T8401C ELECTRONIC THERMOSTATS
YES NO
NO 5 FEET
[1.5 METERS]
NO
M10308
Fig. 1. Typical location of straight or wraparound wiring connections;
Place the desired decorator cover plate and...
Installation Instructions - Page 3
... are : On: The fan runs continuously. In cooling, the fan starts and stops with the cooling equipment. Swing down the thermostat and press the lower edge of the thermostat case. See Fig. 7. T8400C/T8401C heat-cool wiring diagram in single transformer system with the heating equipment.
3
69-1480-1 M11021B
Fig. 5. Set
Room
Set...
Installation Instructions - Page 4
... Fig. 8. 2. M14681
4.
NOTE:
M14686
In installer setup mode only, each press of the thermostat to change the setpoint several degrees.
press and hold to change the setpoint several degrees.
if heat... the temperature setpoint on . T8400C AND T8401C ELECTRONIC THERMOSTATS
Slide the FAN switch in the bottom left corner of the thermostat to test heat or cool outputs.
Installation Instructions - Page 5
T8400C AND T8401C ELECTRONIC THERMOSTATS
10. M14687
4. If the desired cycle is displayed, press the s key to C1 ... and the corresponding system equipment. After approximately five minutes, the cooling equipment should stop.
When using an electric heat thermostat, the fan starts immediately.
3.
M14688
5. Press the t key to raise the temperature setting several degrees below the...
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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