WPL 24 A

  • Made in Germany
  • Ideal for retrofits due to constantly high flow temperatures
  • Highest energy efficiency rating - captures and reuses any wasted heat from the inverter
  • Quietest air source solution for greater comfort
  • Smart Grid ready to connect to solar PV as well as home energy management systems
  • Optional ISG web allows control and monitoring of heat pump remotely
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Product Overview

The WPL 24 A air source hydronic heat pump from STIEBEL ELTRON provides high-temperature flow-rates up to 65°C to allow for both in-slab and radiator heating. Innovative technology such as a modulating fan control and advanced vapour injection guarantees unbeatable efficiency.

Product Details

The compact air source heat pump with output-dependent control and inverter technology is installed in outdoor areas and is suitable for open spaces installation. The WPL 24A can be used for modernisation since it provides a flow temperature of up to 65 °C all year round for heating operation and DHW heating.

Convenience features
Very quiet operation due to the encapsulated refrigerant circuit and acoustically isolated compressor. The modulating fan and the wide gaps between the evaporator fins, which create low air resistance, also help to minimise the sound power level. Monoenergetic operation is possible thanks to an emergency/auxiliary heater. The metal casing is protected against corrosion by hot-dip galvanised, powder-coated sheet steel, with an alpine white stove enamel finish.

The WPL 24 A can achieve high flow temperatures all year round thanks to the combined enhanced vapour injection that cools the scroll compressor at low outside temperatures. In addition, the system's overall efficiency is increased by on-demand defrosting through circuit reversal and heating of the condensate pan by the refrigerant circuit. The waste heat from the inverter raises the return temperature, allowing operation without an auxiliary heater.

The heat pump with integral anti-vibration mounts is directly connected to the heating system.

Technical Data

Model Number WPL 24 A
Energy efficiency class A++
Rated voltage 400 V (3 phase)
Output at A7/W35 (EN14511) 15.7 kW
Coefficient of performance at A7/W35 (EN14511) 4.72
Sound power level (EN 12102) 49 dB(A)
Max. application limit on the heating side 65 °C
Height/Width/Depth (standard appliance) 1116/784/1182 mm
Height/Width/Depth (outdoor installation) 1435/1240/1280 mm
Weight (appliance) 201 kg
Weight (outdoor installation) 279 kg
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File Category Type Download
WPL 24 A DatasheetData SheetPDF
2.04 MB
WPL 24 Operation and Installation GuideOperation and Installation GuidePDF
27.35 MB
Air Source Hydronic Heat Pump WarrantyWarrantyPDF
166.22 kB
38.32 kB
41.53 kB
72.79 kB
Commissioning Protocol: heat pumpsCommissioningPDF
219.81 kB
Registration Form for Heat Pump Service / CommissioningCommissioningPDF
44.15 kB
WPL Commissioning Guide CommissioningPDF
2.53 MB


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