Support Center

T-1500 Product Overview

This section covers the 120-277VAC version of the 1-piece Evolve hospitality thermostat.
 
This device is a Z-Wave communicating digital thermostat, containing 5 on-board 120-277VAC relays for control over the following types of HVAC systems:
 
  • Fan Coil systems with multiple speeds
  • PTAC units and heat pumps where the T-1500 is not required to serve as the “primary relay”.  It is rated as a pilot relay ONLY.  See below for further detail on specifications.
 
The device uses standard thermostat relay connections: See Wiring below for more detail.
 
Specifications:
 
  1. Load rating: 2A max heat/cool, 1/6 HP fan
  2. Relay contact rating:
  • 120VAC = 10A
  • 240VAC = 10A
  • 277VAC = 8A
 
The large number in the middle of the display represents the ambient (room) temperature; the small number on the right hand side of the display represents the set-point temperature.
 
There are 6 accessible buttons on the device:
 
  1. 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.
     
  2. 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.
     
  3. ON/OFF:  Pressing this button completely disengages the HVAC system, and “OFF” will be displayed on the graphical display.  While in this mode, the thermostat will not call for heating, cooling, or any fan control.  To re-engage the HVAC system, press the ON/OFF button again and the “OFF” display will disappear.
     
  4. System Mode (Auto, Heat, Cool):  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.
     
  5. Fan Mode (High, Med, Low, Auto):  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 High, Low, and Auto will be able to be cycled.  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.
     
  6. Fahrenheit/Celsius (F/C):  Pressing this button cycles both the current and setpoint display temperatures between Fahrenheit and Centigrade. 
3c69ff3e06443603ec0ea37e1dacaab9@evolvesupport.desk-mail.com
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