WPL 25

This monobloc heat pump with output-dependent control, with a highly integrated indoor module, is suitable for fast, space-saving installation. It can be used for modernisation projects since flow temperatures of up to 65 °C are available all year round for room heating and DHW heating. It can be used in a wide range of different heat distribution systems, as the heat pump is separated from the heat distribution system via an integral buffer cylinder.  The compact design is suitable for heating and DHW operation as well as for efficient cooling via circuit reversal. The indoor module also contains the following components: DHW cylinder, cylinder charging pump, circulation pump, 3/2-way diverter valve, safety valve, electric emergency/auxiliary heater, and the heat pump manager, which is used to control the system. The Stiebel Article Number for this product is 204912.

The most up-to-date information on all Stiebel Eltron products is available at their TOOLBOX, where you can search for each component and find detailed technical information, schematics, and technical drawings.

The five-year warranty, which includes parts and labour, can be claimed on all STIEBEL ELTRON domestic heat pumps which have been registered with the company and fitted by a partner installer who has been trained at the company’s Bromborough training facility.

The pack (204912) includes the following items:

• Air source heat pump WPL 25 ACS 236643
• Integral cylinder set HSBC 300 cool (GB) Set 204651
• Remote control FET, control accessory 234723
• Internet Service Gateway ISG web, control unit accessory 229336
• Filter FS-WP 28 (28mm filter) 233512

Air source heat pump WPL 25 ACS:

• The air source heat pump for heating and cooling is installed outdoors
• Inverter technology allows ideally matched heating output through the variable speed compressor
• Even at low outside temperatures, the enhanced vapour injection/enhanced saturated of the heat pump achieves a high flow temperature
• Improved room climate in summer with active cooling using circuit reversal
• High efficiency and low operating costs all year round, thanks to optimally matched components
• Low operating costs as mono mode DHW heating is possible
• Can be integrated into the home network and operated via a smartphone
• 28mm connections on the heating flow and return