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The CCTHV-100 thermostat from Cristal Controls is a stand alone thermostat or is communicating on an RS-485 network.

With its RS-485 communication capabilities, the CCTHV can be linked to a Lonworks interface card (Cristal Controls model CCTI-RS485), which enables visualization and control of thermostats on a LON network. Up to 24 thermostats can be connected per interface.

It can also be linked to a Modbus master controller, which enables direct access to the thermostat’s parameters without using an interface. Up to 31 thermostats can be connected per master controller.

Available models

  • CCTHV-100-B
  • CCTHV-100-HVAC
  • CCTHV-100-VAV
  • CCTHV-100-WAT
  • CCTHV-100-0_10


Voltage 19V to 24Vac
Current 30mA typical, 60mA max
Operating temperature -0 ° C to 40 ° C (59 ° F to 86F)
Storage temperature -40°C to 80°C (-40°F to 176°F )
Dimension 4″5/8 x 3″3/16
Humidity 0% to 95% relative humidity without condensation
Reading Temperature reading accuracy: +/- 0.5 ° C (+/- 1 ° F)
Connection Screw connector
Operating range Temperature setpoint range: 15 ° C to 30 ° C (59 ° F to 86 ° F)
Inputs Dry contact type

Temperature input for 10K probe

Ouputs 2 x pulsed (500mA or 2 X 250mA at 24 VAC)

Dry contact type, 1A to 24 VAC

Probe Internal and external (not included)
Mounting 4x mountng holes
Display Alphanumeric
Warranty Standard two years limited warranty



Typically, the CCTHV-100 thermostat is used to control modulation of heating elements as well as cooling permission with its dry contact output. The two triac outputs can be controlled separately with the addition of a second temperature sensor; then, two set points can be adjusted.



327.25 kB
724.20 kB

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