Page 3 - INSTALLATION; CAUTION; Electrical Shock or Equipment Damage Hazard.; Location
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Table 2. Electrical Rating 50-60 Hz 24V 120V 208V 230V 277V Amps (Resistive) 3.8 3.8 3.8 3.8 3.8 Full Load Inductive 3.0 3.0 1 3.0 3.0 3.0 Pilot Duty 100 VA 1 Equivalent to NEMA 1/8 horsepower rating; allowable load must be determined by adding namepl...
Page 4 - Mounting; Fig. 2. Mounting the vertical junction box adapter plate; Removing the thermostat; Equipment Damage Hazard.; OPERATION; Control
40007507-001 T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Mounting Any T6570, T8570 series thermostat can be mounted directly on the wall on a 65x65mm junction box, or a 2"x4" horizontal junction box. An optional adapter plate is available for mounting on a 4"x4" or vertical junc...
Page 5 - OPERATING MODES; OFF MODE
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS SINGLE STAGE COOLING C 23.0 PROPORTIONAL 22.5 BAND 22.0 21.5 21.0 USER 20.5 SETPOINT 20.0 1 1 USER SETPOINT CHANGED TO 21.5 C (71 F) FROM SINGLE STAGE HEATING C 1 23 C (73 F) OR 20 C (68 F). 23.0 22.5 USER SETPOINT 22.0 21.5 21.0 PROPORTIONAL BAND 20....
Page 6 - Additional Switches; DISPLAY; Installer Setup Mode; PROGRAMMING PARAMETERS; PARAMETER VALUES
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Table 4. Energy Saving Mode Default Settings Energy Savings Mode – Setpoints Heating Setpoint Cooling Setpoint Description Default Range Default Range °C Scale 18°C 10-18°C 25°C 25-30°C °F Scale 65°F 50-65°F 77°F 77-90°F Additional Switches FAN SPEED ...
Page 7 - WIRING
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Table 5. Thermostat Parameter Options Parameter ID Description °C Scale °F Scale Default Values Default Values T emperature S cale tS Allows selection of either °C or °F scale Yes – No – D ead B and db Setting deadband (Zero Energy Band) 2 2, 3, 4 4 3...
Page 8 - changeover switch, continuous fan or cycled fan.
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Fig. 10. Wiring 4-pipe, heat/cool with manual heat/cool Fig. 7. Wiring 2-pipe heat-only thermostat with fan On/Auto changeover switch, continuous fan. switch. Fig. 11. Wiring 4-pipe, auto heat/cool changeover. Fig. 8. Wiring 2-pipe seasonal heat/cool ...
Page 9 - Fan-Relay Control Center; changeover switch, continuous or cycled fan.
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Fig. 13. Wiring 4-pipe, heat/cool with manual heat/cool changeover switch, cycled fan, using external relay. Fan-Relay Control Center T8570 thermostats are typically used with load relays to switch line voltage loads. Honeywell offers a convenient fan...
Page 10 - Wiring Remote Sensor; Fig. 21. Wiring optional remote sensor for the T8575D
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Fig. 19. Wiring 4-pipe 24V auto heat/cool changeover with continuous fan. Fig. 20. Wiring 4-pipe 24V auto heat/cool changeover thermostat with fan On/Auto switch. Wiring Remote Sensor The T8109 is a optional remote sensor that can be used as an altern...
Page 12 - Automation and Control Solutions
T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered Trademark © 2005 ...