Supply Chain Advice Pack: Design and integration considerations for heat pump-ready cylinders
Introduction
Heat pumps have traditionally used refrigerants that only allowed the heat pump to deliver water up to 55 degrees. This implies longer cylinder reheat times and to ensure good heat transfer, heating coils with a larger surface area. Whilst regulations mean that over the next 2 years there will be a shift to the R290 refrigerant, in the interim there are still many heat pumps that cannot meet target temperatures for legionella, a type of bacteria associated with Legionnaires’ disease and Pontiac fever, risk management and take approximately 2- 3 times longer recover once depleted of hot water. Legacy R134a and R410 and R32 refrigerants deliver heat up to 55 degrees, whereas R290 heat pumps will be able to heat to around 75 degrees, eliminating these concerns.
This advice pack provides supply chain professionals with practical guidance on selecting, designing, and integrating heat pump-ready hot water cylinders into low-carbon heating systems, including key technical considerations, such as coil sizing, space requirements and compatibility with different heat pump types, to ensure systems are optimised for performance and efficiency.
Download the PDF below to access this Advice Pack.
Readers that would like this document in a more accessible format should contact rise@turntown.co.uk.
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