Remote Sensors - Crestron CHV-THSTAT Operation And Installation Manual

Thermostats
2 • Thermostats: CHV-TSTAT and CHV-THSTAT
Crestron CHV-TSTAT and CHV-THSTAT
Firmware Versions
The new features, and consequent changes to the SIMPL Windows symbol
programming, for firmware version 2.0 and later make it incompatible for use with
X-generation control processors. In addition, upgrading to release 2.0 and later from
a previous release will require a complete re-programming of the thermostat.

Remote Sensors

Firmware version 2.0 and later supports up to four optional remote sensors, two for
each input channel: temperature only (CHV-RTS), temperature/humidity (CHV-
RTHS), and slab sensor (CHV-RSS) for both thermostats. Information from two
sensors that share an input channel is averaged together in the temperature/humidity
calculations.
Outdoor conditions, -40º to 170º F (-40º to 77º C), can be imported from the CHV-
RSS slab sensor.
For additional information about the sensors, refer to the latest revision of the CHV-
RTS & CHV-RTHS Installation Guide (Doc. 8189), and the CHV-RSS Installation
Guide (Doc.6229) which are 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 55 for more information.
Heating and Cooling Systems
The CHV-TSTAT 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)
•
Wide range cool option suitable for wine cellars or other chilling processes*
•
Slab settings for heating and floor warming systems*
*Firmware version 2.0 or higher.
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.
Operations and Installation Guide – DOC. 8163C