Compact hydraulic interface unit for hot water production by the continuous flow principle. Installation as flush mounted version with flush box or as surface-mounted version with cover. The pipe connection to the hydraulic interface unit is created using a patented installation system with pre-installation bracket. Option to connect the pre-installation bracket from the floor. Only available in Germany.

Consisting of:

• Copper-soldered asymmetrical stainless steel counter current heat exchanger
• HERZ pressure and temperature controller for central regulation of the hot water temperature
• Scalding protection with built-in HERZ drinking water mixing valve
• Constant readiness for hot water production even in summer operating mode due to temperature-regulated bypass switching, permanently set to 45°C
• Strainer with fine mesh in primary supply line

Max. operating temperature 90°C,

Max. operating pressure 10 bar,

Min. stat. cold water pressure 2.8 bar,

Tapping rate 15 l/min. (10/50°C),

Heat exchanger output 42 kW,

Max. differential pressure 2 bar

Accessories to be ordered separately:

• HERZ pre-installation bracket 1 4008 05
• HERZ flush box 1 4008 07
• HERZ surface mount cover 1 4008 09