Catalog excerpts

WPL 33 HT - 1

Technical datasheet WPL 33 HT AIR-WATER HEAT PUMPS The WPL HT is the technological leader in the advanced air | water heat pump market. It generates high flow temperatures and is therefore suitable for radiators as well as for DHW heating. There is no need for an electric emergency/booster heater or a second heat generator. Special feature: two inverter compressors operate in one refrigerant circuit. Their speed is matched precisely to the prevailing heat demand. Other technical details also increase the efficiency and heating output, such as an electronic expansion valve which optimises the COP. And at low temperatures, enhanced vapour injection automatically improves the operating range. Subject to the system configuration, it is possible to manage without an external buffer cylinder, thanks to the integral patented cylinder. This keeps heating system modifications to a minimum. The main features Air-water heat pumps Ideal for use in older buildings Versions for internal or external installation as well as a compact version for internal use are available Automatic output matching to the heat demand of the house Energy-efficient defrosting Heating flow temperature up to + 75 °C Pasteurisation control

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WPL 33 HT - 2

Technical datasheet Heating output at A2/W35 partial load (EN 14511) Technical data Energy efficiency class, heat pump W35 Energy efficiency class, W55 heat pump Energy efficiency class, composite system (heat pump + controller) W35 Energy efficiency class, composite system (heat pump + controller) W55 Output at A-7/W55 (EN 14511) Coefficient of performance at A-7/W55 (EN 14511) Output at A2/W55 (EN 14511) Coefficient of performance at A2/W55 (EN 14511) Sound power level (EN 12102) Rated compressor voltage Rated voltage, emergency/booster heater

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WPL 33 HT - 3

Technical datasheet Contact information You have questions? We appreciate to help you: Call +49 5531 - 7020 Write an email to info@stiebel-eltron.com Installation information Please ask your local power supply utility or a registered electrician to install appliances that are not fully wired, i.e. ready to plug in. The electrician should also be able to assist you with obtaining the agreement of the respective power supply utility required for the appliance installation.

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