Crestron electronic CHV-TSTAT - Manual (Page 6)

Thermostats Crestron CHV-TSTAT and CHV-THSTAT
heat, cool, humidity or fan outputs are energized; a message indicator, so users know
when a message is waiting to be read; a net indicator to denote when the network is
active and a hold indicator that identifies when the thermostat is overriding the
Cresnet temperature set point commands.
Remote Sensors
Firmware release 1.1 and earlier supports the addition of two optional remote
sensors: temperature only (CHV-RTS) and/or temperature/humidity (CHV-RTHS),
for both thermostats.
Outdoor conditions can be imported from the optional external sensors CHV-RTS or
CHV-RTHS, temperature and temperature/humidity respectively.
For additional information about the sensors, refer to the latest revision of the CHV-
RTS & CHV-RTHS Installation Guide (Doc. 8189), which is available from the
Crestron website (www.crestron.com).
NOTE: The CHV-TSTAT and CHV-THSTAT allow the user to set a temperature
that the heating and/or cooling system maintains. This is called the “Set Point”. Refer
to “Operating the Thermostat” on page 22 for more information.
NOTE: Crestron sensors are suitable for mounting in dry or damp locations as
defined by the National Electrical Code.
NOTE: Installers should have a strong working knowledge of HVAC systems.
Heating and Cooling Systems
The CHV-TSTAT, in conjunction with firmware release 1.0, can control the
following heating and cooling systems:
• One stage heat
• One stage heat, one stage cool
• One stage heat, one stage cool: heat pump with auxiliary heat
• Two stage heat
• Two stage heat, one stage cool
• One stage heat, two stage cool
• Two stage heat, two stage cool
• Two stage heat, two stage cool: heat pump with auxiliary heat
NOTE: Two Stage Heating – Unlike traditional furnaces that turn on and run at full
capacity with each demand for heating, two-stage heat operates like two separate
furnaces to maintain more consistent comfort in your home. The unit starts out
running in its first stage, and operates at a fraction of its heating capacity. This
reduced capacity is sufficient to warm your home on mild winter days. But when the
temperature outside goes very low, the furnace adjusts to full capacity (second stage)
to meet the demand for heat within the home.
Two Stage Cooling – In warm weather, the first stage of the cooling equipment
operates at a fraction of the total cooling capacity. On very hot days, the second stage
of the cooling equipment energizes, and the cooling system operates at full capacity.
2 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163B