Description
Compact residential unit, hydraulic interface unit for hot water production by the continuous flow principle and heat transfer to radiator heaters. Installation as a flush-mounted version with a flush box or as a surface-mounted version with a cover. The pipe connection to the residential unit hydraulic interface unit is created using a patented installation system with a pre-installation bracket.
Option to connect the pre-installation bracket from the floor.
Consisting of:
- Copper-soldered asymmetrical stainless steel counter-current heat exchanger
- HERZ pressure and temperature controller for central regulation of the hot water temperature with integrated hot water priority circuit
- Differential pressure controller on the heating side, permanently set to 13 kPa
- Valve on the heating side for regulation of the water flow
- Actuating drive for installation on differential pressure controller; 230 V, normally closed
- Constant readiness for hot water production even in summer operating mode due to temperature-regulated bypass switching, permanently set to 45°C
- Cold water meter adapter 110 mm – G 3/4 of dezincification resistant brass, also suitable for sustained operation
- Hot water flow meter adapter 110 mm – G 3/4 of dezincification resistant brass, also suitable for sustained operation
- Heat meter adapter 110 mm – G 3/4 of dezincification-resistant brass, also suitable for sustained operation
- Strainer with fine mesh in primary supply line
- Strainer with fine mesh in secondary return line
Max. operating temperature 90°C,
Max. operating pressure primary 10 bar
Max. heating power 10 kW
Min. stat. cold water pressure 2.8 bar
Tapping rate 18 L/min (10/50°C)
Heat exchanger power 51 kW
Max. differential pressure 2 bar
Accessories to be ordered separately:
- HERZ pre-installation bracket 1 4020 97
- HERZ shutoff ball valves in place of the pre-installation bracket 1 4020 99
- HERZ flush box 1 4008 06
- HERZ surface mount cover 1 4008 08
- HERZ measurement, control and draining set for hydraulic interface unit 1 4008 98
- HERZ sensor mount for temperature sensor (M 10 × 1) for the heat meter 1 4022 46
Product List
| Code | Description | Sales Unit |
|---|---|---|
| 1 4020 33 | HIU PRESSBURG with summer bypass, 18 L | 1 |
