Instruction/ maintenance manual of the product CHRONOTERM IV T8624D Honeywell
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X-XX UL INST ALLA TION INSTRUCTIONS ®U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • • All Rights Reserved T8624D Chronotherm ® IV Deluxe Zone Multistage Thermostat APPLICA TION The T8624D Chronotherm® IV Deluxe ZoneMultistage Thermostat provides electronic control of 24 Vac multistage zoned heating and cooling system.
69-1074 2 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T 5 FEET [1.5 METERS] YES NO NO NO M10106 Fig. 1. Typical location of thermostat. Fig. 2. Mounting the wallplate. Use a pencil to mark the mounting holes. See Fig. 2. Remove the wallplate from the wall and drill two 3/16 inch holes in the wall (if drywall) as marked.
69-1074 3 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T Fig. 3. Typical wiring diagram for T8624 on zone 1 TotalZone® control panel. Fig. 4. Typical wiring diagram for T8624D on zone 1 MABS II control panel. M4826 FOR WRAPAROUND INSERTION STRIP 7/16 IN.
69-1074 4 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T Fig. 7. T8624D key locations and descriptions. Cool: The thermostat controls the cooling. Auto: The thermostat automatically changes between heating and cooling operation, depending on the indoor temperature.
69-1074 5 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T T emperature Settings Refer to Table 2 for the default program. If the daytime energy savings period is not used, press the period key (Leave or Return) until the time is blank.
69-1074 6 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T a The cycle rate for the second stage of heat is adjustable with 6 cph being the factory setting.
69-1074 7 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T Table 3. Thermostat Installer Setup Options (Continued). IMPORTANT Review the settings to confirm that they match the system.
69-1074 8 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T Press Time ▲ ▲ or Time ▼ ▼ until the current time is displayed. NOTE: Tapping the Set Current Day/Time will advance the time in one hour increments. NOTE: If the current time is Daylight Savings Time, press Daylight Time until DST is displayed.
69-1074 9 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T Table 5. Installer Self-Test Options. NOTE: Press any key and the displayed numbers will change. Press Time ▼ ▼ to go to the previous test and Time ▲ ▲ to go to the next test.
69-1074 10 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T THERMOST A T INFORMA TION Press the Time ▲ ▲ key to access the thermostat information. M4934 M4932A M4933A M10229 M10351 Press the increase ▲ key to display the production date code.
69-1074 11 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T Troubleshooting Guide (Continued). a Select models. Symptom P ossible Cause A ction Temperature settings will not change. (Example: Cannot set the The upper or lower temperature limits were reached.
69-1074 12 T8624D CHRONO THERM ® IV DELUXE ZONE MUL TIST AGE THERMOST A T 69-1074 J.H. 3-97 Printed in T aiwan R.O .C. 57 Bushes Lane Elmwood Park, NJ 07407-3204 www .
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