Lesson 1Refrigerant handling, recovery, and environmental compliance: safe charging practices, leak-checking, recovery equipment, refrigerant types and GWPCovers safe refrigerant handling before start-up, including cylinder storage, recovery steps, leak tests, evacuation, charging ways, and following environment rules and records.
Refrigerant types, GWP, and labelingCylinder storage, transport, and safetyRecovery machines, hoses, and tanksLeak testing and evacuation planningCharging methods and documentationLesson 2Outdoor unit siting and mounting: clearances, vibration isolation, pad choices, flood and snow considerationsExplains picking and prepping outdoor unit spots, ensuring good space, airflow, vibration control, and safety from floods, snow, and rubbish while following maker guides and local codes.
Manufacturer and code clearance requirementsAirflow, noise, and neighbor considerationsPads, stands, and wall brackets selectionVibration isolation and anchoring methodsFlood, snow, and debris protection designLesson 3Condensate management and overflow protection: primary/secondary drains, traps, condensate pumps, float switchesExplains designing solid condensate removal with main and backup drains, traps, slope, pumps, overflow switches, and code needs to avoid water damage and repeat calls.
Primary drain sizing and slope rulesSecondary drains and emergency pansTrap design, venting, and primingCondensate pump selection and layoutFloat switches and overflow shutoffLesson 4Refrigerant line set routing and piping best practices: routing, insulation, vapor trap, brazing and flare considerationsBest ways for routing and fitting refrigerant lines, including support gaps, insulation, traps, slope, brazing or flaring, to cut pressure loss and stop future leaks.
Planning line paths and wall penetrationsLine support spacing and protectionInsulation thickness and UV protectionBrazing, purging, and nitrogen useFlare fittings, torque, and leak risksLesson 5Indoor equipment placement: air handler/coil mounting, mini-split indoor head locations, condensate drain routingCovers indoor unit placing, air handler and coil mounting, mini-split head spots, service space, airflow, noise, and condensate drain paths to safe outlets.
Air handler and coil mounting optionsReturn and supply airflow considerationsMini-split head height and wall placementService access and noise mitigationCondensate drain routing constraintsLesson 6Pre-installation inspection: assessing existing ductwork, attic/utility layout, refrigerant access, and structural constraintsHow to check the building before install, including duct state, attic or utility areas, refrigerant paths, and framing limits affecting size, routing, and work planning.
Documenting existing HVAC and electricalDuct leakage, sizing, and insulation checksAttic, crawlspace, and utility access reviewRefrigerant line routing feasibility surveyStructural and penetrations constraints reviewLesson 7Tools, rigging, and lifting: safe handling of outdoor units, use of lifts or hoists, vehicle and site access planningTools and rigging for safely moving gear, with dollies, straps, hoists, cranes, and site access plans to avoid damage to property or injury.
Pre-job tool and equipment checklistSafe manual handling and team liftsUse of dollies, ramps, and stair climbersRigging with hoists, cranes, and slingsVehicle access and site protection plansLesson 8Electrical and control requirements: disconnects, breaker sizing, wire gauge, ground-fault protection, thermostat wiring and controlsElectrical and control needs for heat pumps, service sizing, breakers and wires, disconnect spots, grounding, GFCI or AFCI, and thermostat wiring setup and labels.
Load calculations and panel capacity checkBreaker sizing and wire gauge selectionDisconnect location and mounting rulesGrounding, bonding, and GFCI or AFCIThermostat and control wiring planningLesson 9Key safety precautions: electrical safety, refrigerant exposure and PPE, safe brazing practices, fall protection, lockout/tagoutKey safety during prep and install: electrical risks, refrigerant handling, PPE, safe brazing, fall guards, and lockout/tagout on live systems.
Job hazard analysis and safety briefingElectrical shock and arc flash controlsRefrigerant exposure and ventilationSafe brazing, fire watch, and permitsFall protection and lockout or tagout
