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Popular Honeywell T8401C Manual Pages
Owner's Manual - Page 1
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. M18539
1
69-1490
69-1490
Owner's Manual - Page 2
...in an effort to provide you to use. Over 100 years of Honeywell engineering expertise went into the making of your temperature settings are not required because your new thermostat! The ▲ and ▼ keys make it ....
• Simple and easy to change your temperature setting.
• Large digital display. Congratulations on the purchase of this thermostat in memory.
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Owner's Manual - Page 3
... bottom of the thermostat case. Settings
Setting FAN and SYSTEM Switches
Fan and system settings are controlled by using FAN and SYSTEM switches located on with the cooling equipment. In heating, the fan may start a few minutes after
the heating equipment comes on. On:
The fan runs continuously. Use for most homes.
First set the FAN switch:
Auto: Normal setting for improved...
Owner's Manual - Page 4
SYSTEM SWITCH
M10274
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4
Heat: Normal setting for months when your home
needs cooling (air conditioning). Then set the SYSTEM switch:
Cool: Normal setting for months when your home
needs heating. Digital display
shows a snowflake when cooling is on all models.) Switch to this
setting when your home needs heat, but your
equipment has failed or...
Owner's Manual - Page 5
INDICATOR
Em Ht
Set
Room
M18425
5
69-1490 The ▲ indicator points to either Em Ht or Aux Ht when these modes are not available on all models. Em Ht: Aux Ht:
The ▲ indicator points to help handle the heating load.
Em Ht and Aux Ht Indications
... indicator points to Aux Ht when the living space needs auxiliary backup heat to Em Ht when the SYSTEM switch is set at Em Ht.
Owner's Manual - Page 6
... the room temperature are shown separately on the digital display, press either the ▲ or ▼ key once. The ▼ indicator points to Set when the temperature setting is displayed and to 37°C). Set
Room
INDICATOR
M18441
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6 Displaying Temperature Setting
NOTE: Your temperature setting can be set anywhere from 40° to 99°F (5° to...
Owner's Manual - Page 7
... the ▲ key. To lower the temperature setting, press the ▼ key. Set
Room
M18443
7
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Set
Room
M18442
2. When in the cooling mode, raising the temperature before you leave for work or school also lowers your energy costs. When in the ...
Owner's Manual - Page 8
... 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. If you like saving energy, but would like your energy savings temperature settings.
You can be conveniently programmed to automatically save energy in the...
Owner's Manual - Page 10
... instructions. Troubleshooting Guide
CAUTION
To avoid possible equipment damage, do not operate cooling when outside temperature is set to Heat or Cool.
• Check the system fuse or circuit breaker and replace or...key.
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10
Temperature setting is too warm or cool.
• Check that the SYSTEM switch on . Heating or cooling does not come on the thermostat is below 50°F (10...
Owner's Manual - Page 11
For service, contact your local heating and cooling contractor:
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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. Automation and Control Solutions
Honeywell International Inc. Registered Trademark
69-1490 J.H. 9-00
6ww9w-1.h4o9ne0ywell.com/yourhome
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