A facility-focused guide to HVAC variable frequency drives: suitable applications, control sequences, engineering checks, maintenance, and savings verification.
Compare packaged rooftop, split, VRF, heat-pump, and central chilled-water HVAC approaches using practical building-owner selection criteria.
A practical guide to defining commercial HVAC retrofit goals, comparing measures, calculating payback, managing phasing, and verifying results after installation.
A condition-based commercial air handler maintenance checklist for filters, coils, condensate, fans, drives, dampers, sensors, controls and records.