Installation Instructions
Page 1
... Shock or Equipment Damage Hazard. Registered Trademark Copyright © 2002 Honeywell • • All Rights Reserved 69- 1480- 1 T8400C and T8401C Electronic Thermostats INSTALLATION INSTRUCTIONS The T8400C and T8401C Thermostats provide singlestage, non-programmable temperature control for 24V ...control that contains mercury in an area with manual changeover from the system transformer. Cooling cycle rate is powered through the heating/ cooling system controls. The T8400C Thermostat is fixed at 1, 3, 4, 5, 6, or 9 cph. Location Install the thermostat about 5 ft (1.5m) ...
... Shock or Equipment Damage Hazard. Registered Trademark Copyright © 2002 Honeywell • • All Rights Reserved 69- 1480- 1 T8400C and T8401C Electronic Thermostats INSTALLATION INSTRUCTIONS The T8400C and T8401C Thermostats provide singlestage, non-programmable temperature control for 24V ...control that contains mercury in an area with manual changeover from the system transformer. Cooling cycle rate is powered through the heating/ cooling system controls. The T8400C Thermostat is fixed at 1, 3, 4, 5, 6, or 9 cph. Location Install the thermostat about 5 ft (1.5m) ...
Installation Instructions
Page 3
... and stops with the heating equipment. 3 69-1480-1 T8400C/T8401C heat-cool wiring diagram in single transformer system with the cooling equipment. See Fig. 7. FAN Switch Fan switch settings are controlled manually by the heating equipment and may start a few minutes ... : On: The fan runs continuously. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 IN T8401C INSTALLATIONS, CONNECT C TERMINAL. See Fig. 8. Oil primary has its own transformer. T8400C AND T8401C ELECTRONIC THERMOSTATS KEEP WIRING IN SHADED AREA ALTERNATE MOUNTING SCREW HOLE W Y G R C MOUNTING...
... and stops with the heating equipment. 3 69-1480-1 T8400C/T8401C heat-cool wiring diagram in single transformer system with the cooling equipment. See Fig. 7. FAN Switch Fan switch settings are controlled manually by the heating equipment and may start a few minutes ... : On: The fan runs continuously. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 IN T8401C INSTALLATIONS, CONNECT C TERMINAL. See Fig. 8. Oil primary has its own transformer. T8400C AND T8401C ELECTRONIC THERMOSTATS KEEP WIRING IN SHADED AREA ALTERNATE MOUNTING SCREW HOLE W Y G R C MOUNTING...