When to Replace vs Repair Commercial HVAC Systems
A comprehensive cost-benefit analysis of legacy system maintenance versus modern high-efficiency replacement.

1. The 50% Rule in Equipment Lifecycle
When cumulative repair costs exceed 50% of the replacement value on units older than 10 years, continued repairs represent negative capital allocation.
2. Transitioning to Low-GWP Refrigerants
Replacing phased-out R-22 or high-GWP R-410A units with next-generation R-32 or R-454B chillers ensures regulatory compliance and avoids escalating refrigerant recharge costs.
