Honeywell CHRONOTHERM T8624C- Manuals

5 68-0134 Installation T8624C,D INSTALLATION RECYCLING NOTICE If this control is replacing a control that contains mercury in a sealed tube, do not place your old control inthe trash. Contact your local waste management author-ity for instructions regarding recycling and the properdisposal of your o...

6 T8624C,D INSTALLATION Fig. 4—Mounting subbase on wall. WIRES THROUGHWALL OPENING WALL WALLANCHORS(2) SUBBASE MOUNTINGHOLES MOUNTINGSCREWS (2) M846 Fig. 5—Restrict wiring to recessed areasurrounding terminals. FOR STRAIGHTINSERTION –STRIP 5/16 in. [8 mm] FOR WRAPAROUND –STRIP 7/16 in. [11 mm] RESTR...

10 T8624C,D INSTALLATION Fig. 9—Cycle rate adjustment. SYSTEM GRAVITY AIR/WATER HOT WATER GAS/OIL WARM AIR ELECTRIC WARM AIR 1A OUT 1/2 TO 1 TURN OUT 1/2 TO 1 TURN OUT 1/2 TO 1 TURN OUT 1/2 TO 1 TURN 1B IN IN (FACTORY SETTING) IN IN TIME/TEMP DISPLAY 2A 2B 24 HR IN 12 HR o o C F OUT 1/2 TO 1 TURN OU...

11 68-0134 T8624C,D INSTALLATION • CHECKOUT Fig. 11—Mounting thermostat on subbase. M3764 PM RETURN MON HEAT ON SYSTEM AUTO PM RETURN MON HEAT ON SYSTEM RUN PROGRAM TIME TEMPERATURE PRESENT SETTING SKIP NEXT PERIOD CHANGETO LAST PERIOD SET PRESENTDAY/TIME HOLDTEMP AHEAD WARMER BACK COOLER A. B. C. H...

12 System Press Look For This Response Switch Position This Key Key Down Key Released OFF 06 Blank 02 Blank 05 Blank 04 Blank 01 Blank 00 Blank (CHECKEACHPOSITION) 12 See note A OFF 08 Blank 13 Microprocessormask no. andrevision no. 09 Blank 14 Blank HEAT orAUTO 14 1st stage heatingand SYSTEMLED on....

14 Programming the Thermostat IMPORTANT: With Adaptive Intelligent Recovery™, program the times for when the homeowner wantsthe home comfortable. The thermostat will decidehow early to begin the temperature changes. NOTE: Some models will show 32 ° F instead of the current temperature, indicating th...

15 68-0134 temperature disappear fromthe display. Press and release. The displayshows LEAVE, but no timeor temperature. Press and hold until the dis-play shows the desired starting time. is 75 ° F, the maximum heating setting is 72 ° F. Program the LEAVE time and tempera-ture, if desired. NOTE: The ...

16 T8624C,D PROGRAMMING THE THERMOSTAT SLEEP WAKE Press and hold until SUN ap-pears on the display. Press WAKE, LEAVE, RE-TURN or SLEEP to selectthe time period. Use the AHEAD/BACK keyst o s e t t h e t i m e a n d t h e LEAVE RETURN BACK AHEAD WARMER COOLER WARMER/COOLER keys to set the temperature...

18 T8624C,D PROGRAMMING THE THERMOSTAT • OPERATING THE THERMOSTAT ON AUTO ON M3763 AUTO FAN FAN SET THE SYSTEM AND FANSWITCHES ON THE SUB-BASE. Depending on thermostat model,some of the switch positions shownmay not be available on the ther-mostat. Note the positions providedo n t h e s u b b a s e ...

19 68-0134 T8624C,D OPERATING THE THERMOSTAT WARMER COOLER To temporarily raise or lower the tempera-ture for the current period only: TEMPORARY M5046 ON HEAT Press and hold until the de-sired temperature is reached.The display will flash TEM-PORARY until the next pro-grammed time period starts. Wit...

20 day and Sunday settings arecanceled separately. Press and hold the desired pe-riod key until the time and temperature clear from thedisplay (about three seconds). Press and release to return to T8624C,D OPERATING THE THERMOSTAT SLEEP NOTE: Moving the system switch also can- cels hold. CANCELING T...

21 68-0134 T8624C,D TROUBLESHOOTING THERMOSTAT MOUNTED INCORRECTLY ON BASE. BATTERIES ARE INCORRECTLY INSTALLED. SYMPTOM POSSIBLE CAUSE ACTION NO ac POWER TO THERMOSTAT CHECK POWER TO FURNACE OR AIR CONDITIONER. –ON-OFF SWITCH–FUSE OR CIRCUIT BREAKER–LOOSE 24V CONNECTION –AT THERMOSTAT–AT FURNACE /A...

22 T8624C,D GLOSSARY Troubleshooting Glossary Comfort temperature The temperature desired when active and occupying the home. Energy-saving temperature The lower (heating) or higher (cooling) temperature that allows savings on heating and cooling costs whenasleep or away. Also called the setback (he...

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