Nexus PAWT XL-LE1 horizontal 180 litre stainless steel heat pump water heater with 28 mm heat exchanger for heat pumps and domestic hot water. Duplex 2205 inner tank, 20 m AISI 316L corrugated coil, PU insulation and frosted-metal outer casing.
The RVS Hygiëne boiler PAWT-180H(S) XL-LE1 is a stainless steel heat pump water heater designed for domestic hot water (DHW) production in modern heat pump systems and professional HVAC installations. It supports reliable hot water performance, stable flow and efficient heat transfer.
The inner tank is manufactured from Duplex 2205 stainless steel, offering high corrosion resistance, mechanical strength and long service life. This makes the series a premium stainless steel alternative to standard enamelled or painted steel cylinders.
With Energy Efficiency Class A, the high-quality PU insulation helps reduce heat loss, keeps stored water warmer for longer and supports lower energy consumption in heat pump systems. This makes the Nexus stainless steel boiler range an efficient choice for reliable hot water storage and long-term energy savings.
The integrated 32 mm AISI 316L corrugated stainless steel heat exchanger is designed for efficient heat transfer from the heat pump to the domestic hot water tank. The technical layout supports low flow resistance, accurate control and professional installation.
Technical data - 180 L Horizontal Stainless Steel DHW Cylinder / Hot water heater
| General | |
| Product type | Stainless steel DHW cylinder / heat pump water heater |
| Rated volume | 180 L |
| Application | Heat pump / domestic hot water |
| Installation type | Horizontal floor-standing |
| Connection layout | Horizontal side connection layout |
| Number of exchangers | 1 |
| Width [mm] | 1836 |
| Tilt dimension [mm] | 1896 |
| Outer diameter [mm] | 470 |
| Inner diameter [mm] | 370 |
| Insulation | CFC-free rigid PU foam |
| Insulation thickness [mm] | 50 |
| Outer casing | Frosted metal, RAL 7030 |
| Weight [kg] | 39 |
| Warranty | 5 years |
| Tank | |
| Tank material | Stainless steel Duplex 2205 |
| Max. tank pressure [bar] | 6 |
| Max. tank temperature [deg C] | 95 |
| Heat Exchanger | |
| Exchanger type | Heat pump corrugated coil heat exchanger |
| Exchanger design | Corrugated pipe coil |
| Exchanger material | AISI 316L stainless steel |
| Exchanger diameter [mm] | 28 |
| Exchanger length [m] | 20 |
| Exchanger surface area [m2] | 2.42 |
| Max. exchanger pressure [bar] | 10 |
| Max. exchanger temperature [deg C] | 95 |
| Connections | ||||
| B | Width | 1836 mm | ||
| ØD | Outer diameter | 470 mm | ||
| Ød | Inner diameter | 370 mm | ||
| H | DN 14 | G 3/4" | P&T safety valve | 470 mm |
| M | DN 14 | G 3/4" | P&T safety valve | 918 mm |
| K | DN 9 | G 1" | Hot water outlet | 370 mm |
| F | DN 3 | G 1" | Heat pump exchanger inlet / outlet | 285 mm |
| E | DN 4 | G 1" | Heat pump exchanger inlet / outlet | 185 mm |
| G | DN 8 | G 1" | Cold water inlet | 100 mm |
| I | DN 6 | G 1 1/2" | Electric heating element | 300 mm |
| L | DN 5 | G 1/2" | Sensor pocket 1 | 1580 mm |
| L | DN 7 | G 1/2" | Sensor pocket 2 | 1580 mm |
| P | DN 16 | G 1/2" | Drain tap | 100 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 for domestic hot water * Nexus expansion vessel for heating systems The required expansion vessel capacity must be calculated according to the total system volume and operating conditions. |