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SuitePRO - 277V, 3-Speed, 2 Pipe and 4 Pipe Fan Coil T-Stat

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TB6575A, TB6575B, and TB8575A are a family of Digital Fan-Coil thermostats, that provide line/low voltage on/off control for various fan-coil units in residential and commercial applications. Great for use in hotels, condos, and school classrooms.


  • Simple, intuitive user interface and ease of installation.
  • Attractive modern styling ideal for hotels and condos.
  • Digital display of ambient temperature, setpoint, mode icons when cooling or heating relays operate, when energy savings mode is active, and fan status.
  • Four buttons allow manual control of system operation, fan speed, and temperature setpoint adjustment.
  • VersaSpeed ™ Fan Ramp Algorithm automatically adjusts Low, Medium, High fan speed.
  • Optional freeze protection feature that turns on heat, if necessary.
  • Activity sensing algorithm sets back thermostat to economy mode.
  • Auto fan rest option sets back fan to auto mode.
  • Energy savings mode -- external energy savings input from dry contact such as time switch, occupancy sensor, or hotel cardkey overrides comfort setpoint with selectable setback heating or cooling setpoints.
  • Energy savings input configurable as a normally open or normally closed dry contact.
  • Proportional plus integral (P+I) control algorithm for precision temperature regulation.
  • Selectable C or F.
  • Adjustable deadband, in auto changeover mode, for heat and cool control.
  • Adjustable maximum heating and minimum cooling setpoint limits.
  • Installer setup mode allows changes of operating parameters.
  • EEPROM permanently retains user settings, including setpoints, during power loss (no batteries required).
  • Capability to display temperature sensor failure for easier troubleshooting.
  • Optional remote temperature sensor and remote pipe sensor.

Product Specifications

2 or 4 pipe fan coil, Heat/Cool manual/auto changeover, 3-speed fan, 120 - 240 Vac
Dimensions (in.)
3 13/16 in. high x 5 13/16 in. wide x 1 1/8 in. deep
Dimensions (mm)
97 mm high x 148 mm wide x 29 mm deep
Item Type
Direct mounting on horizontal 2 x 4 in. (50mm x 75 mm) junction box. Mounts on vertical 2 x 4 in. or 4 x 4 in junction box with optional wall plate (50033847-001).
Electrical Ratings
277Vac, Fan Rating : 2.4A, Heat/Cool Relay Rating : 1.0A
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
Meets the same requirements as UL-873
Approvals, Canadian Standards Association
Operating Humidity Range (% RH)
5 to 95% RH, non-condensing
Supply Voltage
120 Vac(+/-10%), 240 Vac(-15% to 10%) or 277 Vac(+/- 10%)
Switch Positions (System)
Switch Positions (Fan)
Approvals, Federal Communications Commission
FCC Part 15, Class B
Premier White®
Auto or Manual
Setting Temperature Range (F)
50 F to 90 F
Setting Temperature Range (C)
10 C to 30 C