Voltic FrostLine Compatibility - Voltic

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

Scenario	Compatibility	Validate before connecting
2-pipe fan coil	Yes	This documentation’s standard scheme: one valve and three fan speeds.
4-pipe fan coil	Yes, with a specific configuration	Independent heating and cooling valves, output assignment, and changeover logic according to the approved scheme for your version.
Fan coil + hydronic underfloor heating	Yes, with a specific configuration	Underfloor actuator, circuit priorities, sensors, and thermal protections. Do not connect an electric floor-heating load directly without a validated diagram.
VolticHub	Yes	Pairing through the Voltic ecosystem and the corresponding account.
Tuya-compatible Zigbee Hub	Yes	Hub model compatibility, inclusion process, and features exposed by Tuya Smart / Smart Life.

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.

Next step