Description
Compact residential unit hydraulic interface unit for hot water production by the continuous flow principle and heat transfer to low-temperature heating. Installation as a flush-mounted version with a flush box or 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 23 kPa with integrated zone valve, threaded connection for drives M 28 × 1.5 mm; stroke 4 mm
- 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
- Fixed value control with setting range 20°C – 50°C consisting of zone valve, thermostat with a contact sensor, safety thermostat and circulating pump
- Water flow meter adapter, total 80 mm – G 3/4 of dezincification resistant brass, also suitable for sustained operation
- Cold water meter adapter 80 mm – G 3/4 of dezincification-resistant brass, also suitable for sustained operation
- Hot water flow meter adapter 80 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 return line of low-temperature circuit
- Strainer with fine mesh in cold water inlet
Max. operating pressure 10 bar,
Max. heating power 10 kW
Min. stat. cold water pressure 2.8 bar,
Tapping rate 15 L/min (10/45°C) – 1 4024 13, 18 L/min (10/45°C) – 1 4024 18 or 22 L/min (10/45°C) – 1 4024 01
Heat exchanger power 37 kW – 1 4024 13, 42 kW – 1 4024 18 or 53 kW – 1 4024 01
Max. differential pressure 2 bar
1 4024 12 – as 1 4024 13 but pipes insulated
1 4024 17 – as 1 4024 18 but pipes insulated
Accessories to be ordered separately:
- HERZ pre-installation bracket 1 4024 02
- HERZ flush box with pre-installation bracket 1 4024 05
- HERZ surface mount cover 1 4024 09
- HERZ differential pressure controller set, setting range 25–60 kPa 1 4024 19
- HERZ sensor mount for temperature sensor (M 10 × 1) for the heat meter 1 4022 46
- Flush box with front door and front frame white powder-coated (RAL 9003),
- Pre-installation bar, rod-type distributor with flow meter and upper thermostatic insert
Product List
| Code | Description | Sale Unit |
|---|---|---|
| 1 4024 13 | HIU SALZBURG NT, 15 L | 1 |
| 1 4024 12 | HIU SALZBURG NT, 15 L, with insulated pipes | 1 |
| 1 4024 18 | HIU SALZBURG NT, 18 L | 1 |
| 1 4024 17 | HIU SALZBURG NT, 18 L, with insulated pipes | 1 |
| 1 4024 01 | HIU SALZBURG NT, 22 L | 1 |
