Description
The Stiebel Eltron WPL 20 A is a compact air/water heat pump for outdoor installation with a three-phase connection (3/N/PE~400 V). It uses ambient air as a heat source and reliably delivers heating warmth up to a maximum flow temperature of 65 °C – even at low outdoor temperatures down to -20 °C.With a heating capacity of 7.8 kW at 7/35 °C and a power consumption of only 2 kW, it is designed for use in single and multi-family homes as well as small commercial units. The high energy efficiency class A+++ (W35) ensures low operating costs and economical continuous operation.
Technical Data
General Data
Designation: Heat Pump
Product Type / Model Number: WPL 20 A
Article Group: Heat Pumps
Version: Outdoor Unit
Manufacturer: Stiebel Eltron
Heat Source: Ambient Air
Refrigerant: R410A
Weight: 175 kg
Protection Class IP: Other
Electrical Data
Supply Voltage: 230/400 V
Connection Voltage: 400 V
Electrical Connection: 3/N/PE~400 V
Number of Phases: 3
Power Consumption: 2 kW
Starting Current: 4.0 A
Performance Data / Operation
Heating Capacity A2/W35, B0/W35, W10/W35: 6.7 kW
Heating Capacity at 7/35 °C according to EN 14511: 7.8 kW
Max. Flow Temperature: 65 °C
Lower Operating Limit Heating Mode: -20 °C
Upper Operating Limit Heating Mode: 40 °C
Heat Source Operating Limit: -20 to 40 °C
Heating Water Temperature Spread: 5 K
Defrosting Method: Reversing Cycle
Hydraulic and Air Data
Volume Flow Heat Source Side: 4000 m³/h
Airflow Rate: 3000 – 4000 m³/h
Volume Flow Heating Side: 1.1 m³/h
Acoustics
Energy Efficiency
Energy Efficiency Class (General): A++
Energy Efficiency Class (W35): A+++
Energy Efficiency Class (W55): A++
Dimensions
Width: 1490 mm
Height: 1045 mm
Depth: 593 mm
Air Operating Range
CE Conformity (Summary)
The WPL 20 A device from the manufacturer Stiebel Eltron is an electrically operated air/water heat pump outdoor unit. It is intended for use in the European internal market and is manufactured in compliance with CE standards according to the manufacturer's specifications.
The heat pump fulfills the relevant European directives and standards for safety, electrical engineering, and EMC (e.g., low voltage and EMC requirements).
The complete EC/EU Declaration of Conformity is usually provided by the manufacturer Stiebel Eltron upon request or in the technical appendix and should be enclosed with the project or plant documentation.
Technical Drawing (Dimensioned Sketch – Description)
For planning and installation documents, the heat pump can be dimensioned as follows:
-
Front View:
Device Width: 1490 mm
Device Height: 1045 mm
-
Side View:
Recommendation for planning:
Ensure sufficient air supply and exhaust corresponding to an airflow rate of 3000–4000 m³/h.
Maintain minimum side and rear clearances as per manufacturer's specifications (maintenance access, air circulation).
Install on a stable, vibration-damping foundation (concrete base / mounting frame) considering the weight of 175 kg.
Note on Documents (PDF):For this item, we provide all relevant documents also as PDF. These include the supplement, technical drawing, installation manual, energy label including product data sheet, and the CE Declaration of Conformity. The documents will be sent to you as a PDF via email upon request or after your order.
Disclaimer:All technical specifications and documents are based on manufacturer's data and have been compiled with the greatest care. Errors and technical changes are reserved. Only the current documents from the manufacturer and the valid installation and operating instructions are binding. No liability or claims for damages against us can be derived from discrepancies, errors, or incomplete information. We recommend having the product's suitability checked by a specialist planner or installer before planning and execution.Technical DataCE Conformity (Summary)Technical Drawing (Dimensioned Sketch – Description)
