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Our WH Series is a high-temperature water-to-water heat pump that can heat water up to 160°F (71°C) for either domestic water heating (DHW) or space heating use. The source loop can be a water well, ground loop, or waste heat loop but can not be any colder than 45°F (7°C).
Nordic High Temperature Water-to-Water Heat Pump
The WH Series is available in residential sizes from 2 to 6 nominal tons for hot water baseboard and radiator applications.
This series is also available in commercial sizes ranging from 9 to 65 nominal tons for high temperature water heating.
Quick Facts About the High-Temperature Water-to-Water Heat Pump (sizes 25-800)
The WH sizes 25 to 80 are used for space heating only and feature a coaxial single wall condenser and a rugged, high-efficiency coaxial evaporator.
Sizes 120/140/180/235 are a single compressor system and can be equipped with a double wall braze plate exchanger for DHW heating.
Sizes 150 to 800 are produced in same proven vertical chiller design as our W Series commercial geothermal heat pump and are only available in single wall plates for space heating.
Quick Facts | |
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Distribution Type | Hot Water for Baseboards or High-Temperature Heating Medium |
Capabilities | Hydronic Heating |
Loop Type | Ground Loop or Open Well (Minimum 45°F (7°C) Source Temperature) |
Residential Heating Size | 2 - 6 Nominal Tons |
Commercial Heating Size | 9 - 65 Nominal Tons |
COPh | 2.5 - 6.5 |
Certifications | TUV |
Refrigerant (25-80) | R134a (Canada Only) , R513A (US) |
Refrigerant (120-800) | R513A |
For all specification documents including those for older refrigerants R410a/R134a, please visit our documents page: