Description
Compact residential unit, hydraulic interface unit for hot water production by continuous flow principle and of heat to radiator heaters via a separate heat exchanger. Installation as a surface-mounted version with cover. The pipe connection to the residential unit hydraulic interface unit is created using a patented installation system with a pre-installation bracket.
Consisting of:
- Copper-soldered asymmetrical stainless steel plate heat exchanger
- Second heat exchanger for system separation on the secondary heating circuit
- HERZ pressure and temperature controller for central regulation of the hot water temperature with integrated hot water priority circuit
- Circulating pump for the secondary heating circuit
- Constant readiness for hot water production even in summer, operating mode due to temperature-regulated bypass switching, permanently set to 45°C
- Heat meter adapter 130 mm – G 3/4 made of dezincification resistant brass, also suitable for continuous operation
- Automatic air vent in secondary circuit
- Diaphragm expansion tank secondary
- Diaphragm safety valve 3 bar secondary
- Strainer with fine mesh in primary supply line
- Strainer with fine mesh in secondary return line
- Wheater-driven heating control
- RISE certified
Max. operating pressure on primary circuit 16 bar
Max. heating power 15 kW
Min. stat. cold water pressure 2.5 bar
Tapping rate 20 L/min (10/50°C)
Heat exchanger output 55 kW
Max. differential pressure 2 bar
Recommended min. differential pressure DP 55 kPa
Accessories to be ordered separately:
- HERZ pre-installation bracket 1 4023 41
Product List
| Code | Description | Sales Unit |
|---|---|---|
| 1 4023 40 | HIU STOCKHOLM, 20 L | 1 |
