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TB-200 + RPTAC-5 Product Overview

This section covers the 24VAC version of the current 2-piece, wireless, battery operated, Evolve hospitality thermostat solution.
 
This solution consists of two products:
 
  1. The TB-200, which is a Z-Wave communicating digital temperature sensor and control panel. It can be used either in environments where a common (C) wire is not present, or where there is no wire run between a requested thermostat location and a 24V HVAC unit. It operates on battery power (4 x AA) and communicates wirelessly with the RPTAC-5 to control the HVAC unit.
     
  2. The RPTAC-5, which is a remote HVAC controller, connects directly to the HVAC unit via 24VAC connections. It listens for wireless commands from the TB-200 and engages the HVAC unit’s heating, cooling, and fan modes accordingly. This device is typically installed directly inside of a PTAC unit or heat pump.

It is intended to control the following types of HVAC systems with standard 24VAC connections:
 
  • Fan Coil systems with multiple speeds
  • PTAC units with standard thermostat connections
  • Heat pump units, including emergency electric heat as well as configurable reversing valve control (with heat or with cool)

The large number in the middle of the TB-200 display represents the ambient (room) temperature. There is a status line along the top of the display which is used to communicate current setpoint temperature, occupancy “setback” status, setup screen parameters, and other feedback while changing setpoints, operating modes, and fan modes.

There are 4 accessible buttons on the device:
 
  • Temp Up: Each press of this button increases the setpoint by 1-degree. The thermostat will then prompt the user to select “Done” to immediately engage the new setpoint, or after a 5-second period it will automatically engage the new setpoint.
     
  • Temp Down: Each press of this button decreases the setpoint by 1-degree. The thermostat will then prompt the user to select “Done” to immediately engage the new setpoint, or after a 5-second period it will automatically engage the new setpoint.
     
  • Mode (Auto, Heat, Cool, Off): By default, the thermostat operates in “Auto changeover”, meaning it calls for either heating or cooling depending on the current room temperature vs. selected setpoint temperature. Pressing this button locks the thermostat into only calling for heating or cooling, and ignores setpoints that conflict with the manual heating or cooling setting. Additionally, if OFF is the selected operating mode, the HVAC unit will be disengaged until either A) the mode is manually altered again or B) the guest room transitions its occupancy status from occupied to unoccupied, or vice versa.
     
  • Fan Mode (Auto, On): The number of fan speeds visible and accessible by a user is dependent on the fan mode- for example, if the thermostat is configured as a 2 speed device, then only “Fan Low” and “Fan High” will be toggled in the status line while the Fan Mode is set to “On”. By default, the thermostat operates in “Auto” fan mode, whereby the fan speed selected is dependent on the delta between setpoint and current room temperature.

    In a 2 speed configuration, the system operates in low fan speed when the delta between setpoint and current room temperature is 1-degree. The system operates in high fan speed when the delta is 2-degrees or greater.

    In a 3 speed configuration, the system operates in low fan speed when the delta between setpoint and current room temperature is 1-degree. The system operates in medium fan speed when the delta is 2-degrees. The system operates in high fan speed when the delta is 3-degrees or greater.

Note: to adjust the TB-200 to display Fahrenheit vs. Centigrade temperatures, the user must enter the setup screen by holding the Fan button for 4 seconds, selecting “Setup”, selecting the “Fahrenheit or Celsius” option, then use the up/down arrows to toggle between F and C, then press select. Finally, selecting Done will exit out of the setup screen.
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