Honeywell t8624d- Manuals

Page 2 - IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS; Wallplate Installation; Loosely insert the mounting screws into the holes.; WIRING; CAUTION; Disconnect power before beginning wiring.

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 69-1412—1 2 Wallplate Installation The thermostat can be mounted horizontally on the wall or on a 2 in. x 4 in. (50.8 mm x 101.6 mm) wiring box. Position wallplate horizontally on the wall or on a 2 in. x 4 in. (50.8 mm x 101.6) mm w...

Page 3 - in a heat pump system.; Mounting Thermostat; Press lower edge of case to close and latch.

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 3 69-1412—1 Fig. 3. Typical hookup of T8624D in a heat pump system. Fig. 4. Correct wiring technique. Mounting Thermostat 1. Engage tabs at the top of the thermostat and wall-plate. See Fig. 5. 2. Press lower edge of case to close an...

Page 4 - Using Thermostat Keys; SETTINGS; System and Fan Settings; Temperature Settings

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 69-1412—1 4 Fig. 6. T8624D key locations and descriptions. Using Thermostat Keys The thermostat keys are used to:• set current day and time,• program times and setpoints for heating and cooling,• temporarily override program temperat...

Page 5 - INSTALLER SETUP; IMPORTANT

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 5 69-1412—1 INSTALLER SETUP NOTE: For most applications, the thermostat factory- settings will not need to be changed. Review the factory settings in Table 2 and if no changes are necessary, go to the Installer System Test section. T...

Page 7 - Setting Current Day and Time

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 7 69-1412—1 IMPORTANT Review the settings to confirm that they match the system. Press Run Program to exit the Installer Setup. The thermostat has saved the Installer Setup changes and initiated a reset in order to operate using the ...

Page 8 - Viewing or Resetting Timer Settings; INSTALLER SYSTEM TEST; Table 4. Tests Available In Installer System Test.; Test Number

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 69-1412—1 8 NOTE: If the current time is Daylight Savings Time, press Daylight Time until DST is displayed. 4. Press Run Program. Viewing or Resetting Timer Settings When the thermostat activates a timer, the thermostat flashes Filte...

Page 10 - THERMOSTAT INFORMATION; Outdoor Temperature Sensor

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 69-1412—1 10 THERMOSTAT INFORMATION 1. Press the Time ∆ key to access the thermostat information. 2. Press the increase ! key to display the production date code. The first two large digits are the month and the third digit is the la...

Page 11 - TROUBLESHOOTING GUIDE; Symptom

T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS 11 69-1412—1 TROUBLESHOOTING GUIDE Table 6. Troubleshooting Guide. Symptom Possible Cause Action Display will not come on. Thermostat is not being powered. • Check for 24 Vac between R and C terminals. — If missing 24 Vac: — check if...

Page 12 - Verify operation of heating or cooling equipment in self-test.

69-1412—1 G.H. Rev. 12-02 www.honeywell.com/yourhome T8624D CHRONOTHERM ® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS Automation and Control Solutions Honeywell Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, OntarioM1V 4Z9 System ...