GE556-6

Heat Interface Unit (HIU) with electronic regulation and double heat exchanger

Electronic Heat Interface Unit (HIU) with double heat exchanger for centralized systems, for managing high/low temperature heating and domestic hot water production.
- Heat exchanger to separate the secondary heating circuit from the primary circuit of the condominium
- Heat exchanger for the instantaneous production of DHW
- Electronic thermoregulation unit with fixed point (Set-Point) for managing the domestic hot water temperature and the climatic heating curve, with external probe support (included)
- Remote control with chronothermostat function to manage the parameter (for single zone), (included)
- Flow switch for domestic hot water priority command
- Three-way priority valve on the delivery of the primary side
- Two-way modulating valve on the return of the primary side
- Self-modulating circulator (ErP 2009/125/EC)
- Filter and manual air-vent valve on primary side
- Safety valve on heating side
- Safety pressure switch for low pressure on the primary side
- Fully insulated pipes
- Box with terminal board for electric connections
- Multizone additional control by the free contact on the electronic board (additional thermostats to be ordered separately)
- Brass spacers for installation of thermal energy meter and domestic water meter
- Energy savings: reduction of the flow rate requested from the primary line, and reduction of the primary return temperatures
- Heating temperature range: low temperature: 25÷45 °C / high temperature: 25÷85 °C
- DHW temperature range: 30÷60 °C (Set-point 50 °C)
- Max. working temperature: 90 °C
- Max. working pressure:
primary circuit: 16 bar
secondary DHW circuit: 10 bar
secondary heating circuit: 4,5 bar

- Dimensions and notes:
•GE556Y411: 460 x 630 x 270 mm
Heating and domestic hot water production
Heat exchanger power: 58 kW
•GE556Y412: 460 x 630 x 270 mm
Heating and domestic hot water production
Heat exchanger power: 67 kW

To complete the GE556-6 HIU, the following may be ordered separately:
- Thermal energy meter, GE552 series
- Domestic water meter, GE552-2 series
- Templates for installation in worksite, GE551-2 series
- Components for M-Bus data centralization (GE552-4 series),
or Wireless M-Bus data centralization (GE552-W series)