Honeywell T8624D Chronotherm IV Deluxe Programmable Multistage Thermostats
The T8624D Chronotherm® IV Deluxe Programmable Multistage Thermostats provides electronic control of 24 Vac single-zone multistage systems.
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 temperatures, . display present setting, . configure Installer Setup, . check System Test, . display outdoor temperature (select models), . set the system operation, . set the fan operation.
The system default setting is Heat and the fan default setting is Auto. Use the System and Fan keys to change the settings. See Fig. 7. The fan settings can be set for each program period individually. The system selection is for all the program periods. System settings control the thermostat operation as follows: Heat: The thermostat controls the heating. Off: Both the heating and cooling are off. Cool: The thermostat controls the cooling. Auto: The thermostat automatically changes between heating and cooling operation, depending on the indoor temperature. Fan settings control the system fan as follows: On: Fan operates continuously. Auto: Fan operates with equipment.
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. The fan setting feature is available on select thermostat models. See Owners Guide, form number 69-0940, for complete instructions on changing the program.
Download PDF Manual Honeywell T8624D Chronotherm IV Deluxe Programmable Multistage Thermostats
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August 13th, 2009 | by admin |