Air Source Hydronic Heat Pumps

WPL 47 / WPL 57
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This product is on because of

Renewable energy, Battery storage, Gas-free all-electric

Home future-proofed against energy price increases and climate change impacts

Energy efficient heating and cooling

A large heating demand requires an efficient heating system. The robust WPL 47/57 air source heat pump from STIEBEL ELTRON is the perfect hydronic heating solution for apartment blocks or commercial buildings. The WPL harvests energy from the air to achieve flow temperatures of up to 60°C, suitable for both in-slab and radiator heating. Engineered for Australian conditions, the system utilises an efficient defrost function that allows for operation in temperatures as low as -20°C.

The WPL 47/57 can be cascaded for use in large buildings or commercial units. Up to six systems can be used to easily multiply the heating output. All the while, the operating noise is kept to a minimum by an encapsulated refrigerant circuit, an acoustically isolated compressor and wide gaps between the evaporator fins. Both the corrosion-protected metal casing painted in STIEBEL white and the casing protecting the evaporator ensure high durability of the outdoor elements.

The right system for the job

  • German made, engineered for diverse Australian conditions
  • High output for commercial applications and apartment buildings
  • Efficiently harvests the energy from the outdoor air
  • Cascade multiple units to increase heating output

Your building will benefit

  • Flow temperatures up to 60°C allow use of in-slab hydronic heating and radiators
  • Silent operation thanks to an encapsulated refrigerant circuit, acoustically isolated compressor and wide gaps between the evaporator fins
  • Can be integrated into your building automation system with the use of a software extension
  • Can be controlled remotely via a mobile device with the addition of an ISG web unit

Installation flexibility

  • Low height allows discreet and convenient placement
  • Corrosion protected metal casing and protected evaporator ensure long durability
  • Perfect for new builds and modernisation

Model Number WPL 47 WPL 57
Energy efficiency class A+/A+ A+/A+
Rated voltage 400 V (3 phase) 400 V (3 phase)
Output at A7/W35 (EN 14511) 26.83 kW 31.01 kW
Coefficient of performance at A7/W35 (EN 14511) 3.94 3.59
Sound power level (EN 12102) 69 dB(A) 69 dB(A)
Sound pressure level at 5 m distance in a free field 45 dB(A) 47 dB(A)
Max. application limit on the heating side 60 °C 60 °C
Height/Width/Depth 1485/1860/2040 mm 1485/1860/2040 mm
Weight 540 kg 600 kg

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