Commercial HVAC system: To keep your home comfort system operating properly, it is important to perform seasonal maintenance. Below is an excellent Spring HVAC maintenance checklist with tips on how to best maintain your Commercial HVAC system and reduce energy costs in your home all year round. Commercial HVAC System Maintenance Trim bushes and shrubs around outdoor units to allow at least two feet of clearance around. Remove leaves and debris from inside the unit’s top grille. Replace your central air…