Rounds are only valuable if the numbers are interpreted. Covers the daily/weekly round sheet: supply/return air temps and what the temperature split across the coil tells you, read against the unit’s design conditions, chilled water delta-T, condenser/boiler pressures and temps, amp draws vs. nameplate, and filter pressure drop. You’ll learn baseline logging — recording normal […]

The PM work that actually prevents failures: filter programs (MERV selection, change triggers), belt inspection/tension/alignment, coil cleaning methods by coil type, bearing lubrication discipline (right grease, right amount, right interval), damper and linkage checks, and condensate management. Includes seasonal checklists for heating and cooling changeover. Order of work on a PM visitCommercial HVAC Operations Tech […]

Covers what’s actually on the graphics: setpoints vs. actual values, schedules, overrides (and why abandoned overrides quietly drive up energy use), trends as a troubleshooting tool, and alarm triage — which alarms mean roll-now and which mean log-it. You’ll learn the discipline of changing one thing at a time and documenting every override with a […]

A systematic method for ‘too hot/too cold’: verify the complaint with a measurement, check the zone (thermostat/sensor, VAV box damper and reheat, airflow at diffusers), then move upstream (AHU discharge temp, static pressure, plant supply temps). Covers the usual suspects in order of probability and how to close the loop with the occupant so the […]

Covers cooling tower and closed-loop water treatment basics (what the chemical vendor’s report means, Legionella awareness, blowdown), boiler safety device awareness (low-water cutoff, relief valves — test awareness, not just existence), refrigerant handling awareness and EPA 608 context, LOTO fundamentals, and the operating log/CMMS discipline that makes a tech promotable. Certificate of Completion included. Daily […]