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Voltic FrostLine can be used in several HVAC scenarios. The exact connection depends on the device version, firmware, installed actuators, and the control logic defined for the installation.

Compatibility matrix

The 2-pipe diagram is not a template for a 4-pipe installation or a combined underfloor-heating installation. Do not energize the device until you verify terminal mapping, loads, and protections against the manual for your version.

Information required for an advanced project

Before approving an advanced installation, collect:
  • Exact FrostLine reference and firmware
  • Fan coil and valve diagram
  • Underfloor-heating actuator type, if applicable
  • Voltage and current for each load
  • Selected Hub: VolticHub or Tuya
  • Desired heating, cooling, fan, and priority sequence
If any of this information is missing, request the connection diagram from support before wiring the device.

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