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Question posted by oumhanibelhout on December 29th, 2018

Rth8500 To Set To Celcius

Hello, I would like to change the settings from Farenheit to Celcius. How to do that?Thank you,Ani

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Answer #1: Posted by Odin on December 29th, 2018 12:18 PM

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Odin

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See sec. 0320 at https://www.manualslib.com/manual/675141/Honeywell-Rth8500-Series.html?page=21&term=Fahrenheit.

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Related Honeywell RTH8500 Manual Pages

Owner's Manual - Page 1

Operating Manual RTH8500 Touchscreen Programmable Thermostat 69-1901EF-1

Owner's Manual - Page 3

... below 50˚F (10˚C). Your new thermostat is preprogrammed and ready to go . Table of contents RTH8500 About your new thermostat Thermostat features 2 Programming at a glance 3 Quick reference to controls 4 Quick reference to status display......... 5 Programming & Operation Clock setting 6 Fan setting 7 System setting 8 Using program schedules 9 Program schedule overrides 12...

Owner's Manual - Page 4

...'ve just purchased the world's most advanced, easy-to greatly reduce your new thermostat Congratulations! Operating Manual About your heating/cooling expenses. • One-touch temp control...8226; 7-day program schedules maximize comfort and economy. • Armchair programming: Just pull thermostat from the wall to set . • Change/check reminders let you many years of the level you...

Owner's Manual - Page 5

... page 6 2. RTH8500 Your new thermostat is set the time and day. AThbiosutthyeorumronsetawt tisherremadoysttaot go to Auto To change , see page 8 4. Program schedules: Preset to energy-saving levels while you're at work or asleep (assumes you have to do is pre-programmed and ready to Heat To change , see pages 12-14). Select system setting: Preset...

Owner's Manual - Page 6

...) MON TUE WED THU FRI SAT SUN OK TO PICK MULTIPLE DAYS 70 FAN Inside AUTO 70 Set To SYSTEM HEAT 6:01 AM Following Schedule SCHED HOLD CLOCK SCREEN MORE Press to adjust temperature settings (see pages 11-14) Press for more options (select models only) Press to override program schedule (see...

Owner's Manual - Page 7

Quick reference to status display Current inside temperature Current day of week RTH8500 Temperature setting Fan setting System setting Current time WED 70 FAN Inside AUTO SYSTEM HEAT 6:01 AM 70 Set To Following Schedule Recovery Program schedule on (does not display when off) SCHED HOLD CLOCK SCREEN MORE Smart Response® Technology in effect (see...

Owner's Manual - Page 8

... MORE 70 70 FAN Inside Set To AUTO Adjust time, then press DONE 6:02 AM DONE CANCEL To set the current time display, press... CLOCK, then press s or t to advance the time more quickly. Note: The real-time clock should never require adjustment since it automatically updates for daylight savings time, and stores all date/time information. Note: To change...

Owner's Manual - Page 9

Fan setting WED 70 FAN Inside AUTO SYSTEM HEAT 6:01 AM 70 Set To Following Schedule SCHED HOLD CLOCK SCREEN MORE Press FAN RTH8500 Press FAN to select fan operation, then press DONE. • On: Fan is always on. • Auto: Fan runs only when the heating or cooling system is on.

Owner's Manual - Page 10

... SYSTEM button to select, then press DONE. • Heat: Thermostat controls only the heating system. • Cool: Thermostat controls only the cooling system. • Auto: Thermostat automatically selects heating or cooling depending on how your thermostat was installed. Compressor is locked out. Operating Manual System setting WED 70 FAN Inside AUTO SYSTEM HEAT 6:01 AM...

Owner's Manual - Page 11

... your system for maximum energy savings. Save money by setting program schedules RTH8500 It's easy to the time you return home and the temperature you want during the morning, until bedtime. WAKE 6:00 am 70 ° LEAVE 8:00 ...

Owner's Manual - Page 12

... they can reduce your heating/cooling expenses by as much as 33%. (See next page to use EnergyStar® program settings. Operating Manual EnergyStar® settings for maximum cost savings This thermostat is pre-set to adjust times and temperatures of each time period.) Wake (6:00 am) Leave (8:00 am) Return (6:00 pm) Sleep...

Owner's Manual - Page 13

...RETURN SLEEP CANCEL Set time for each. 6. 70 FAN Inside AUTO 70 Set To To adjuWsEDt program Following Schedule schedules RTH8500 67:000 FAN Inside AM PrAeUTsOs SCHED 70 Set To SCHED HOLD... (LEAVE, RETURN, SLEEP) to set time and temperatures for program period to eliminate any unwanted time period. Press day buttons (MON-SUN) to exit without saving changes). Press DONE to save & exit...

Owner's Manual - Page 15

... SCHED) to permanently adjust the temperature. Whatever temperature you manually change it or press CANCEL (or SCHED) to cancel "Hold" and resume the program schedule. Program schedule override (permanent) RTH8500 Press HOLD Adjust temperature WED 70 FAN Inside AUTO SYSTEM 73 Set To Heat On HEAT 8:00 AM Permanent Hold SCHED HOLD CLOCK...

Owner's Manual - Page 17

... 70° by the time you wake at the time you set to Auto, the thermostat automatically selects heating or cooling depending on before 6 am , and the temperature to 70°. Special features RTH8500 Smart Response® Technology: This feature allows the thermostat to "learn" how long the furnace and air conditioner take to...

Owner's Manual - Page 18

... spray any settings. Operating Manual WED 70 70 ASFAcbN roIenusideetnyoculeranneSieSntCwTRoEgENtLOhCKEeD rmostat AUTO Press SCREEN 6:00PM Following Schedule SCHED HOLD CLOCK SCREEN MORE Screen lock timer (30 seconds) Press SCREEN to resume normal operation, or press SCREEN again if you can clean the screen without changing any liquid directly on the thermostat. Use water...

Owner's Manual - Page 19

...filter reminder Press RESET afWteEDr changing filter. Filter 60 Days RTH8500 If activated during installation,... the furnace filter reminder alerts you when it is time to restart the timer. Press MORE, then EDIT. 2. Press DONE to select the desired interval, then press DONE. 3. Press s or t to save and exit. FAN AUTO CHANGE FILTER 70 Inside 55 Set...

Owner's Manual - Page 21

... on lower • This button will remain blank unless the furnace filter change right of difficulty RTH8500 If you have difficulty with your Installation Guide). In case of screen is... thermostat, please try the following suggestions. blank 19 Most problems can be corrected quickly and easily. Button on . • Make sure furnace door is closed securely. • If thermostat ...

Owner's Manual - Page 22

... switch at heating & cooling system is on. • Make sure furnace door is closed securely. • If "Wait" is displayed, the compressor protection timer is set cooling system higher than the Inside temperature. Wait 5 minutes for the system to restart safely, without damaging the compressor (see page 15). 20

Owner's Manual - Page 23

... which occurred while the product was caused by the consumer. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. 1-year limited warranty RTH8500 Honeywell warrants this product, excluding battery, to be free from defects in the possession of a consumer. If at 1-800-468-1502.

Owner's Manual - Page 25