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Honeywell T8602D Support Question

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Question posted by thaxelson on October 8th, 2011

Batteries In A T8602d

I know that I need to replace the 3 AA batteries.  But are there additional batteries in a T8602D that need to be replaced?  When I replaced the 3 AA batteries earlier today, I noticed what appears to be two smaller batteries -- but I don't want to remove them until I know more about them.

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Related Honeywell T8602D Manual Pages

Owner's Manual - Page 1

All Rights Reserved 69-1400-1 Registered Trademark Copyright © 2002 Honeywell International Inc. Deluxe Programmable Thermostat ® U.S.
Owner's Manual - Page 2

DELUXE PROGRAMMABLE THERMOSTAT FEATURES • Program up to four time periods and temperature setpoints for each daily schedule. • Set different schedules for each day of the week. &#...
Owner's Manual - Page 3

...comfort. The factory preprogrammed time, temperature and fan settings are shown in brackets. The thermostat display shows day, time, program period, temperature, system and fan operation selection. If ... for extended periods of the week (28 independent time and 56 temperature settings). The thermostat can use the following charts to program a daytime energy savings period, press the period...
Owner's Manual - Page 4

DELUXE PROGRAMMABLE THERMOSTAT Period Start Time Monday Wake [6:00 AM] Leave [8:00 AM] Return [6:00 PM] Sleep [10:00 PM] Tuesday Wake [6:00 AM] Leave [8:00 AM] Return [6:...
Owner's Manual - Page 5

DELUXE PROGRAMMABLE THERMOSTAT Setting the Current Day and Time IMPORTANT Always press the keys with your fingertip or similar blunt tool. Set Current Day/Time Run Program Set ...
Owner's Manual - Page 6

..., 8:30). played. Press Day until the desired Wake time is 40 to 90°F (7 to 31°C) for the entire period. 69-1400-1 6 DELUXE PROGRAMMABLE THERMOSTAT Programming the First Day Start by programming the Wake time and temperature (and fan operation on select models) for cooling. Press increase s or decrease t key...
Owner's Manual - Page 8

Go to step 2 if the thermostat is displayed. M14644 Day 5. Wake Run Program Set Current Day/Time Hold Temp Day ...Settings Copy System Sleep Fan 6. Press Day to select the day to use the copy feature. DELUXE PROGRAMMABLE THERMOSTAT Copying a Day NOTE: The thermostat must be in the program mode. 1. Press Copy. Run Program Set Current Day/Time Hold Temp Day Daylight...
Owner's Manual - Page 9

... Program Period NOTE: The thermostat must be cleared. 5. Repeat steps 2 and 3 for all the periods to use the clear feature. Press Day ...in the program mode to be in the program mode. 1. Press Run Program. 9 69-1400-1 Go to step 2 if the thermostat is displayed. Press Wake, Leave, Return or Sleep. Leave Run Program Set Current Day/Time Hold Temp Day Daylight Time Time Wake ...
Owner's Manual - Page 10

NOTE: If s or t appear under the temperature display, it means that both the heat and cool ...Set Program Leave Return Heat/Cool Settings Copy System Sleep Fan Fan Heat Auto M14652 3. DELUXE PROGRAMMABLE THERMOSTAT OPERATING THE DELUXE PROGRAMMABLE THERMOSTAT Setting Temporary Temperatures Changing Temperature Setting Until the Next Program Period Press increase s or decrease t key...
Owner's Manual - Page 11

...to adjust temperature settings. Press Time s or Time t until the desired number of days is needed or if Cool is selected, only the Cool setpoint is displayed (1 to select the period ...176; = heating equipment will stop the Hold at the Return period start . (Example: Return = thermostat will operate when the room tempera- ture is below 54°F) Run Program Set Current Day/Time Hold...
Owner's Manual - Page 12

... the Hold needs to be set for eighteen days and returns to change between heating and cooling operation, depending on the indoor temperature (select models). Setting System and Fan The system default setting is Heat and the fan default setting is above 84°F) NOTE: In this example, the thermostat uses the...
Owner's Manual - Page 13

... initial setting instructions. Filter Days 2. Press the Time s key to your thermostat has a Fan key and this feature, press Fan until the expired timer is active, all active ...the Run Program key. If more than one hour and the display will go back one hour earlier or later with a key press. When pressed in effect until the timer resets. 1. Daylight Time...
Owner's Manual - Page 14

... mounted on the wall, remove the thermostat by placing your thermostat is equipped with an outdoor sensor, you can check the temperature at the sensor by pressing once. Replace the batteries as soon as shown. WALLPLATE B R RC O W Y G INSTALL 3 AA ALKALINE BATTERIES AS SHOWN, POSITIVE (+) TERMINALS TOWARD TOP. DELUXE PROGRAMMABLE THERMOSTAT Displaying the Outdoor Temperature If your thumb...
Owner's Manual - Page 15

... shutting down due 60 70 80 90 to lack of power. M15084 15 69-1400-1 You must reset the time and day. Refer to the thermostat and the wall surface. Nonalkaline batteries do not last as one degree Fahrenheit-so room temperature is more likely to feel right to you insert new...
Owner's Manual - Page 16

...to use the Adaptive Intelligent Recovery™ setting or the conventional recovery. The thermostat calculates the Leave/Return recovery separately from experience. Use the Adaptive Intelligent Recovery&#... established. • During the Adaptive Intelligent Recovery™ time, the thermostat increases the temperature setpoint from the energy savings to the comfort temperature. ...
Owner's Manual - Page 17

...setting the program down in winter or up to the savings you can expect. DELUXE PROGRAMMABLE THERMOSTAT Saving Energy Across the United States and Canada • Save up in summer for eight ... Wash., D C San Francisco Dallas Atlanta Los Angeles *Based on your home. San Diego M2416A Notice: This equipment is longer, you complete comfort and a low cost easy way to save any energy...
Owner's Manual - Page 18

... thermostat is mounted and latched on the wallplate-mount and latch the thermostat on . • Check if the circuit breaker is tripped-reset the circuit breaker. • Check if the fuse is blown-replace... if the fuse is blown-replace the fuse. • Check if the system switch at the equipment is in display. • Indicates a filter timer needs to Heat. replace any broken wires. •...
Owner's Manual - Page 19

...any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it is defective, (i) return it, with proof of purchase (including date of purchase) and ... damage which you . DELUXE PROGRAMMABLE THERMOSTAT WARRANTY Honeywell warrants this product, excluding battery, to be to repair or replace the product within a reasonable period of time.
Owner's Manual - Page 20

Rev. 12-02 Printed in U.S.A. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-1400-1 G.H. DELUXE PROGRAMMABLE THERMOSTAT Automation and Control Solutions Honeywell International Inc. on recycled paper containing at least 10% www.honeywell.com/yourhome post-consumer paper fibers.

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