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Honeywell TB8575A1000 SuitePro Fan Coil Thermostat - 24V - 2/4 Pipe. The SuitePRO is a family of Digital Fan Coil thermostats for residential and commercial applications such as hotels, condominiums, school classrooms, etc. TB8575A1000 - 2-pipe or 4-pipe with seasonal heat/cool changeover; 24Vac. Suitable for multiple applications. Changes in output wiring and external links between wiring terminals allow you to configure the thermostat for the appropriate application. The applications that are available are: - Heating or Cooling only - Two pipes: Heat or Cool with Manual Changeover - Two pipes: Heat or Cool with Seasonal Changeover (requires optional pipe sensor) - Two pipes: Heat or Cool with Auxiliary Heat and Manual or Seasonal Changeover (requires optional pipe sensor) - Four pipes: Mixed Manual and Auto Changeover - Four pipes: Manual Changeover - Four pipes: Auto Changeover FEATURES: • 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. SPECIFICATIONS: Description - 3-Speed Fan Coil Thermostat; 2 or 4 pipe Manual/Auto Heat or Cool changeover, 3 speed fan, Supply voltage: 24 Vac 50/60 Hz Application - 2 or 4 pipe fan coil, Heat/Cool manual/auto changeover, 3-speed fan, 24 Vac Changeover - Manual/Auto Switch Positions (System) - OFF-HEAT-COOL-AUTO Switch Positions (Fan) - HI-MED-LOW-AUTO-OFF Color - Premier White® Setting Temperature Range (F) - 50 F to 90 F Setting Temperature Range (C) - 10 C to 30 C Voltage - 20 to 30 Vac Frequency - 50 Hz; 60 Hz Electrical Ratings - 24 Vac, Fan Rating: 1.0 A, Relay Rating: 1.0 A Display - LCD Mounting - Direct mounting on horizontal 2 x 4 in. (50mm x 75 mm) junction box. 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 Operating Humidity Range (% RH) - 5 to 95% RH, non-condensing