Lesson 1Refrigerant handling, recovery, and environmental compliance: safe charging practices, leak-checking, recovery equipment, refrigerant types and GWPDis section covers safe handling of refrigerants before startup, including cylinder storage, recovery steps, leak testing, evacuation, charging methods, and following environmental and record rules.
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 considerationsDis section explains how to pick and prep outdoor unit spots, ensuring proper space, airflow, vibration control, and protection from flood, snow, and rubbish while meeting manufacturer and local code.
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 switchesDis section explains how to design solid condensate removal, including main and backup drains, traps, slope, pumps, overflow switches, and code to stop 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 considerationsDis section explains best ways for routing and installing refrigerant lines, including support spacing, insulation, traps, slope, brazing or flaring, and ways to cut pressure drop and 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 routingDis section covers indoor equipment placement, including air handler and coil mounting, mini-split head spots, service space, airflow patterns, noise worries, and routing condensate to safe disposal.
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 constraintsDis section covers how to check di existing building before install, including duct condition, attic or utility spaces, refrigerant paths, and framing or access limits dat affect sizing, 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 planningDis section details tools and rigging needed to move and place equipment safe, including dollies, straps, hoists, cranes, and planning site access to avoid damage to property and 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 controlsDis section details electrical and control needs for heat pumps, including service sizing, breaker and wire choice, disconnect placement, grounding, GFCI or AFCI, and thermostat wiring layout 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/tagoutDis section focuses on key safety during prep and install, covering electrical risks, refrigerant exposure, PPE choice, safe brazing and hot work, fall protection, and lockout or 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
