Heat networks consultancy FairHeat describe Acceptance Testing as ‘rigorous testing to verify dwelling performance by ensuring the installation, commissioning and operation are as per the design and performance specification’.
CP1 2020 details Acceptance Testing in Objective 5.7: To carry out on-site acceptance tests to deliver an efficient and reliable service.
The acceptance testing process is then described as:
“Independent acceptance testing shall be carried out on the first 10% installed, then, if they pass, a randomised 10% sample of the remainder. If any of the first 10% tests fail to meet the requirements then acceptance testing shall continue on the next 10%, and so on.”
This means that the minimum standard is to carry out acceptance testing on 20% of dwellings (assuming they all pass).
Although best practice point BP5.7a states that, “best practice is to carry out independent acceptance testing on 100% of dwellings”.