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RCS RS485 Communicating Thermostat with HVAC Control Unit

Item # RCTR65

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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

The TR65 thermostat is a two part thermostat with a Wall Display Unit (WDU) and a HVAC Control Unit.

Install theTR65 Wall Display Unit (WDU) on the wall in the traditional thermostat location. The HVAC Control Unit is typically installed at the HVAC mechanical system location, but it can be installed anywhere in the wiring between the WDU and the HVAC system.

ZCV Series

RCS Zone Control units helps your heating, ventilation and air conditioning (HVAC) system maintain different temperatures in different parts of the house. Although this is a totally standalone system that can be operated independently of any other home control system, it also offers the ability to be controlled via RS485 using the RCS Thermostat network protocol. The ZCV series do not use "standard thermostats" for each zone but instead uses an RCS Wall Display Unit. Works with RCS RD or RDM series normally open dampers.

Wall Display Unit

  • Model: TS65
  • Size: 5 x 3 x 3/4 inches
  • Display: Graphical LCD
  • Backlight: Yes, Blue/white, Controllable, on, off, timeout
  • Contrast: Adjustable on screen
  • Buttons: 6
  • Remote Sensors: 2 (not included)
  • Power: from HVAC Control Unit

HVAC Control Unit

  • Model: ZCV1
  • Size: 8 x 6 x 1.5 inches
  • HVAC System Type Compatible: Standard (gas/electric) or Heat Pump
  • Multistage System Compatible:
    • Standard HVAC Systems: 2 stage heating, 2 stage cooling
    • Heat Pump Systems: 3 stage heating (2 compressor, 1 aux heat), 2 stage cooling
  • Heat Pump change over valve: Selectable change over with cool or with heat ( O or B)
  • Communications: RS485 Half Duplex 2 wire (plus ground)
  • Power: 24VAC from HVAC system, or an external transformer (not included)

HVAC System Compatibility

  • Central HVAC systems or separate heating/cooling systems with separate RH/RC transformers (split)
  • Standard gas/electric HVAC Systems: 2-stage heating, 2-stage cooling
  • Heat Pump HVAC Systems: 3-stage heating, 2-stage cooling
  • Fan system: Selectable for gas or electric heat systems.
  • Heat Pump Change Over valve (reversing valve): Selectable for change over with heat or change over with cool (O or B output)
  • Emergency Heat: In Heat pump mode, Emergency Heat mode is selectable from the thermostat
  • Compressor short cycle protection delay of 6 minutes (adjustable)
  • Automatic heating and cooling changeover

Wiring Requirements

  • 18 AWG
  • Uses standard thermostat connections (C, R, W1, W2, Y1, Y2, G)