Nexus Black One-inLine PDWT 300+100 32mm: stainless steel heat pump cylinder for corner installations, with one-line connections, Duplex 2205 tank and Ø32 mm high-flow heat exchanger.
The InLine 300XL + 100L/black 32mm combines domestic hot water storage with additional buffer volume for heat pump systems and professional HVAC installations. It is designed for applications where hot water comfort and hydraulic stability are needed in one compact solution.
The inner tank is manufactured from Duplex 2205 stainless steel. The integrated 32 mm AISI 316L corrugated stainless steel heat exchanger supports efficient heat transfer from the heat pump to the domestic hot water section.
The buffer section increases system volume and helps the heat pump operate more smoothly, while the DHW section provides reliable domestic hot water storage.
Technical data — Black One-inLine PDWT 300+100 32mm
| General | |
| Product type | Stainless steel heat pump cylinder with integrated buffer tank |
| Rated volume | 300+100 L |
| Application | Heat pump / domestic hot water and buffer storage |
| Installation type | Vertical floor-standing |
| Connection layout | Combined DHW and buffer connections in one vertical line |
| Number of exchangers | 1 |
| Height [mm] | 1907 |
| Tilt dimension [mm] | 2015 |
| Outer diameter [mm] | 650 |
| Inner diameter [mm] | 550 |
| Insulation | CFC-free rigid PU foam |
| Insulation thickness [mm] | 50 |
| Outer casing | Frosted metal, Black |
| Weight [kg] | 80 |
| Warranty | 3 years |
| Tank | |
| Tank material | Stainless steel Duplex 2205 |
| Max. tank pressure [bar] | 6 |
| Max. tank temperature [°C] | 95 |
| Heat exchanger | |
| Exchanger type | XL heat pump corrugated coil heat exchanger |
| Exchanger design | Corrugated pipe coil |
| Exchanger material | AISI 316L stainless steel |
| Exchanger length [m] | 30 |
| Exchanger surface area [m²] | 4.5 |
| Exchanger volume [L] | 20 |
| Max. exchanger pressure [bar] | 10 |
| Max. exchanger temperature [°C] | 95 |
| Connections | ||||
| H | DN 14 | G 3/4" | P&T safety valve | 1907 mm |
| B | DN 3 | G 1" | Connection (inlet / outlet) | 1672 mm |
| F | DN 9 | G 1" | Ø32 mm AISI 316L XL heat exchanger 30 m | 1572 mm |
| C | DN 15 | Thermometer | 1395 mm | |
| P | DN 5 | G 1/2" | Sensor pocket 1 (12.7 mm) | 1246 mm |
| D | DN 7 | G 1/2" | Sensor pocket 2 (12.7 mm) | 1010 mm |
| L | DN 8 | G 1" | Ø32 mm AISI 316L XL heat exchanger 30 m | 910 mm |
| L | DN 6 | G 1½" | Electric heating element | 910 mm |
| A | DN 4 | G 1" | Connection (inlet / outlet) | 810 mm |
| G | DN 2 | G 1/2" | Drain tap | 597 mm |
| S | DN 34 | G 3/4" | P&T safety valve | 495 mm |
| J | DN 23 | G 1" | Connection (inlet / outlet) | 350 mm |
| N | DN 29 | G 1" | Connection (inlet / outlet) | 350 mm |
| R | DN 25 | G 1/2" | Sensor pocket 4 (12.7 mm) | 290 mm |
| T | DN 26 | G 1½" | Electric heating element | 290 mm |
| I | DN 24 | G 1" | Connection (inlet / outlet) | 230 mm |
| M | DN 28 | G 1" | Connection (inlet / outlet) | 230 mm |
| Q | DN 22 | G 1/2" | Drain tap | 33 mm |
| Safety requirements |
| The storage vessel must be protected against overpressure at all times. We recommend installing the following safety accessories: * Safety valve and inlet combination * Nexus sanitary expansion vessel * Nexus expansion vessel for heating systems The required expansion vessel capacity must be calculated according to the total system volume and operating conditions. |