Lesson 1Refrigerant handling, recovery, and environmental compliance: safe charging practices, leak-checking, recovery equipment, refrigerant types and GWPCovers safe ways to manage refrigerants before starting, like storing cylinders, pulling back used gas, checking leaks, emptying air, adding charge right, and keeping records to follow nature 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 considerationsTells how to choose and set up spots for outside units, with enough space, good air flow, no shake, and safe from floods, snow, rubbish, matching maker guides and local rules.
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 switchesShows how to set up sure water drip removal, with main and extra drains, traps, right slope, pumps, overflow alerts, and rules to stop water harm and extra 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 considerationsGives best ways for laying refrigerant pipes, support gaps, cover with insulation, traps, slope, joining by 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 routingDeals with placing inside gear, like air handler and coil setup, mini-split heads spots, service space, air paths, noise worry, and drip drain to safe spots.
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 constraintsCovers checking the building before setup, duct state, roof or utility rooms, refrigerant paths, frame limits that change gear size, paths, and work plans.
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 planningLists tools and safe moving ways for gear, dollies, straps, hoists, cranes, and planning road access to avoid harm to things or people.
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 controlsDetails power and control needs, service size, breaker and wire pick, disconnect spot, earth, GFCI or AFCI, and thermostat wiring marks.
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/tagoutStresses main safety steps in prep and setup, power risks, refrigerant touch, gear wear, safe hot join work, fall guards, and lock steps 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
