When commissioning a new hot water heating system, what is the common practice to prevent larger particles from reaching the circulating pump?

Installing a temporary strainer is considered common practice during the commissioning of a new hot water heating system. The primary function of the strainer is to capture larger particles and debris that may be present in the system during the initial filling and operation stages. This is crucial because such particles can damage the circulating pump and other components, leading to reduced efficiency or equipment failure.

Temporary strainers are typically designed to be easily removed or replaced, allowing for routine maintenance checks. Once the system has been flushed and any debris removed, the strainer can be taken out, ensuring that only clean water circulates through the pump and heating elements afterward. This practice helps to safeguard the system's longevity and reliability during its early operation period.