As discussed in my last three columns (February, March, and April 2021), there are a number of retro-commissioning activities that can be completed remotely. However, there is much to be learned from seeing, touching, and hearing the equipment and components operating inside a building. This is when, under normal circumstances, a building owner may have an outside commissioning professional perform a walkthrough.
When travel restrictions, corporate policy, or budget constraints limit the ability of the commissioning professional to physically make a site visit, there are some things to address before considering a virtual site visit.