How do you calculate sling tension and load control for a center-of-gravity check for an offset HVAC unit?

For offset HVAC units, start by determining the actual center of gravity through equipment specifications or field measurement. The unit's weight distribution is rarely uniform due to compressors, coils, and internal components. Calculate individual sling tension using the formula T = W / (n × cos θ), where T is tension per sling, W is total weight, n is number of slings, and θ is the sling angle from vertical.