WPF 20 / 27 / 35 / 40 / 52 / 66

  • Geothermal hydronic heating for larger complexes
  • 21.5 – 67.1 kW heating output at B0/W35
  • Stackable design to maximise available space
  • Cascade control for high output requirements
  • High reliability through robust single compressor design
  • Integrated heat and electricity meters
  • Extremely quiet operation
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Product Overview

Designed for residential and commercial complexes with larger heating loads, the stackable WPF range of geothermal hydronic heat pumps are a demonstration of the advancement of heat pump technology. Featuring cascade control which allows additional units to be started dependant on peak loads. Winner of multiple design awards, the WPF 20-66 geothermal heat pumps can be stacked to save space.

Product Details

APPLICATION

Brine / water heat pump for indoor or weatherproof outdoor installation. Suitable for multi-family houses and commercial applications due to up to 66 kW as a single device and up to 400 kW in a cascade. Optimized for space-saving set-up thanks to the stackability of 2 devices on top of each other. 

EQUIPMENT / COMFORT

In order to minimize the transmission of structure-borne noise to the building, the cooling circuit is located on a vibration-decoupled base plate. The heat pump controller (accessory) in conjunction with the ISG (optional accessory) enables the system to be controlled in the home network or with a mobile device. With integrated heat and electricity metering via refrigeration circuit data. If necessary, the integration into a building automation can be realized via a software extension. 

EFFICIENCY 

The heat pump unit is equipped with a scroll compressor with start-up relief and optimized heat exchangers to increase efficiency. 

INSTALLATION

Internal pressure hoses enable a direct hydraulic connection to the heating and brine circuits. For the introduction in confined spaces, it is possible to reduce the basic device for transport to a width of <800 mm. There are also attachment points for crane lugs on the basic device. 

Technical Data

Model WPF 20 WPF 27 WPF 35 WPF 40 WPF 52 WPF 66
Output at B0/W35 (EN 14511) 21.5 kW 29.69 kW 38.04 kW 43.1 kW 55.83 kW 67.10 kW
Coefficient of performance at B0/W35 (EN 14511) 4.66 4.85 4.78 4.67 4.81 4.56
Flow rate, heat source side 5 m³/h 7 m³/h 8.8 m³/h 10.5 m³/h 13 m³/h 16.1 m³/h
Nominal design flow rate of heating system at A-7/W35 and 7 K 2.65 m³/h 3.65 m³/h 4.48 m³/h 5.3 m³/h 6.86 m³/h 8.26 m³/h
Sound power level (EN 12102) 54 dB(A) 55 dB(A) 56 dB(A) 58 dB(A) 58 dB(A) 61 dB(A)
Sound pressure level at a distance of 1 m 43 dB(A) 44 dB(A) 45 dB(A) 47 dB(A) 47 dB(A) 50 dB(A)
Rated compressor voltage 400 V 400 V 400 V 400 V 400 V 400 V
Connections for the heating and source side G 2 G 2 G 2 G 2 G 2 G 2
Height 1154 mm 1154 mm 1154 mm 1154 mm 1154 mm 1154 mm
Width 1242 mm 1242 mm 1242 mm 1242 mm 1242 mm 1242 mm
Depth 860 mm 860 mm 860 mm 860 mm 860 mm 860 mm
Weight 345 kg 367 kg 391 kg 415 kg 539 kg 655 kg

Downloads

File Category Type Download
WPF 20 Data SheetData SheetPDF
348.96 kB
WPF 27 Data SheetData SheetPDF
349.18 kB
WPF 35 Data SheetData SheetPDF
349.06 kB
WPF 40 Data SheetData SheetPDF
349.18 kB
WPF 52 Data SheetData SheetPDF
349.14 kB
WPF 66 Data SheetData SheetPDF
349.20 kB
WPF Operation and Installation GuideOperation and Installation GuidePDF
5.31 MB
Geothermal Hydronic Heat Pump WarrantyWarrantyPDF
146.98 kB
Air and Ground Source Heat Pump BrochureBrochurePDF
1.38 MB
WPF 20-66 Line DrawingTechnical DrawingPNG
44.85 kB
WPF 20_66 Exploded DiagramTechnical DrawingPNG
29.40 kB
Commissioning Protocol: heat pumpsCommissioningPDF
219.81 kB
Registration Form for Heat Pump Service / CommissioningCommissioningPDF
44.15 kB

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