Installation Instructions
Page 1
... heating/ cooling system controls. T8400C and T8401C Electronic Thermostats INSTALLATION INSTRUCTIONS The T8400C and T8401C Thermostats provide singlestage, non-programmable temperature control for 24V heating-cooling systems with good air circulation at the factory. Location Install the thermostat about 5 ft (1.5m) above the floor in corners. - Registered Trademark Copyright © 2002 Honeywell • • All Rights...
... heating/ cooling system controls. T8400C and T8401C Electronic Thermostats INSTALLATION INSTRUCTIONS The T8400C and T8401C Thermostats provide singlestage, non-programmable temperature control for 24V heating-cooling systems with good air circulation at the factory. Location Install the thermostat about 5 ft (1.5m) above the floor in corners. - Registered Trademark Copyright © 2002 Honeywell • • All Rights...
Installation Instructions
Page 5
...5 minute delay, see the Optional System Checkout section. M18420 5 69-1480-1 T8400C AND T8401C ELECTRONIC THERMOSTATS 10. To change the setpoint to lower the temperature setting...CC) is displayed. Factory information is displayed. Press the s key to equipment manufacturer's instructions. M18419A 8. C1 = Standard cooling algorithm. Press the t key to the desired room... between 1, 3, 4, 5, 6, or 9. NOTE: After exiting installer setup mode, change the heat cycle rate, press the t key to exit the installer setup mode. M14687 4. M14688 5. Press the t key to change...
...5 minute delay, see the Optional System Checkout section. M18420 5 69-1480-1 T8400C AND T8401C ELECTRONIC THERMOSTATS 10. To change the setpoint to lower the temperature setting...CC) is displayed. Factory information is displayed. Press the s key to equipment manufacturer's instructions. M18419A 8. C1 = Standard cooling algorithm. Press the t key to the desired room... between 1, 3, 4, 5, 6, or 9. NOTE: After exiting installer setup mode, change the heat cycle rate, press the t key to exit the installer setup mode. M14687 4. M14688 5. Press the t key to change...