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Honeywell T8570 manual

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Table of contents for the manual

  • Page 1

    T6570, T8570 Series Digital Fan-Coil Thermostats PRODUCT DATA APPLICATION T6570 Series Digital Fan-Coil thermostats provide line voltage on/of f control for fans, valves, compressors or auxiliary electric heaters in fan-coil and small air-conditioner applications. T8570 Series provides low voltage control of these functions. Models are available fo[...]

  • Page 2

    T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS SPECIFICA TIONS T able 1. Models Applications Features Switches Control Vo l t a g e 2-Pipe Fan Coil 4-Pipe Fan Coil Number of Relays Energy Savings Input Fan On/ Auto Auto Changeover Deadband Adjust Remote Sensor On/Off (SPST) 3-Speed Fan (SP3T) Heat/ Cool Wiring Diagram T6574B • 2 1 • • • ?[...]

  • Page 3

    T6570, T8570 SERIES D IGITAL FAN-COIL THERMOSTATS T able 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 V A 1 Equivalent to NEMA 1/8 horsepower rating; allowa ble load must be determined by adding namep late full load and locked rotor rating of all [...]

  • Page 4

    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 o ptional adapte r plate is ava ilable for mounting on a 4"x4" or vertical junction box. (See Fig. 2) Mounting screws are [...]

  • Page 5

    T6570, T8570 SERIES D IGITAL FAN-COIL THERMOSTATS SINGLE ST AGE 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 ST AGE HEA TING 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 20.5 20.0 M17477 Fig. 4. Single stage control. AU[...]

  • Page 6

    T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS T a ble 4. Ener gy Saving Mode Default Settings Energy Saving s Mode – Setpoint s Heating Setpoint Cooli ng 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 SWITCH (SP3T LINE VOLTAGE) Where[...]

  • Page 7

    T6570, T8570 SERIES D IGITAL FAN-COIL THERMOSTATS T able 5. Thermostat Parameter Options Parameter ID Description °C Scale °F Scale Default V alues Default V alues T emperature S cale tS Allows selection of ei ther °C or °F scale Y es – No – D ead B and db Setting deadband (Zero Energy Band) 2 2, 3, 4 4 3, 4, 5 Heat or Cool Op erating Mode [...]

  • Page 8

    T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Fig. 10. Wiring 4-pipe, heat/cool with manual heat/cool Fig. 7. Wiring 2-pipe heat-on ly thermostat with fan On/Auto changeove r switch, co ntinuous fan. switch. Fig. 1 1. W iring 4-pi pe, auto heat /cool changeover . Fig. 8. W iring 2-pipe seaso nal heat/cool chan geover with external aq uastat, fan[...]

  • Page 9

    T6570, T8570 SERIES D IGITAL FAN-COIL THERMOSTATS Fig. 13. W iring 4-pipe, heat/coo l with manua l heat/cool changeover switch, cy cled fan, using external relay . Fan-Relay Control Center T8570 thermostats are typically used with load relays to sw itch line voltage loads. Ho neywell offers a convenient fan-relay center , the W6380, that prov ides [...]

  • Page 10

    T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Fig. 19. Wirin g 4-pipe 24V auto heat/cool chan geover with continuous fan . Fig. 20. Wiring 4-pipe 2 4V auto heat/cool changeover thermostat with fan On/Auto switch. Wiring Remote Sensor The T8109 is a optional remote se nsor that can be used as an alternative to the internal sensor of the T8575D. T[...]

  • Page 11

    T6570, T8570 SERIES D IGITAL FAN-COIL THERMOSTATS 95C-10897–6 11[...]

  • Page 12

    T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS Automation and Co ntrol Solutions Honeywell Internation al Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Dri ve North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered T rademark © 2005 Honeywell International I nc. 95C-10897–6[...]