Heat interface unit for indirect heating and instantaneous domestic hot water (DHW) with electronic PID control using Pressure Independent Control Valves (PICVs) with modulating actuators achieving a low primary return temperature as well as providing differential pressure control and flow rate regulation.

The heating circuit flow temperature is controlled by the modulation of the primary flow rate with the integrated PICV actuator, whilst the integrated pump modulates the secondary flow based on the design dT ensuring low secondary and primary return temperatures.

Weather compensation is applied to the set heating flow temperature using SmartTalk® two-way communication ensuring maximum system efficiency. Suitable for radiators, underfloor heating and fan coil units.

Domestic hot water is heated via a separate plate heat exchanger and the temperature is regulated by the modulation of primary flow rate with the integrated PICV actuator.

Features and benefits:

Smart, lower cost with communication network connection.
Lower output models perfectly placed for CIBSE ADE Code of Practice.
New internal layout configured for simple installation and maintenance.
Supplied with SmartTalk® Pro Web Interface for remote control and diagnostics.
WRAS Approved.

WRAS Approval 2007348