Lesson 1Refrigerant handling, recovery, and environmental compliance: safe charging practices, leak-checking, recovery equipment, refrigerant types and GWPCovers safe refrigerant management before startup, such as cylinder storage, recovery steps, leak tests, evacuation, charging techniques, and following environmental rules and paperwork.
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 readying outdoor unit spots, with right clearances, airflow, vibration dampening, and safeguards against floods, snow, and rubbish per maker guidelines 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 switchesDetails designing solid condensate disposal with main and backup drains, traps, proper slope, pumps, overflow sensors, and code standards 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 considerationsOutlines top practices for routing and fitting refrigerant lines, including supports, lagging, traps, slope, brazing/flaring, and ways to cut pressure loss and avoid 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 routingAddresses indoor unit positioning, air handler/coil fitting, mini-split head spots, service space, airflow, noise issues, 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 constraintsCovers checking the site before fitting, like duct state, attic/utility areas, refrigerant routes, and structure limits affecting sizing, paths, and labour 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 planningDetails tools and rigging for safely shifting gear, using trolleys, straps, hoists, cranes, and site access plans to prevent 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 controlsSpecifies electrical and control needs for heat pumps, like service capacity, breakers/wires, disconnect spots, earthing, GFCI/AFCI, and thermostat wiring/layout.
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/tagoutHighlights vital safety during prep and install, covering electrical risks, refrigerant handling, PPE, safe brazing/hot work, fall guards, and lockout/tagout on live gear.
Job hazard analysis and safety briefingElectrical shock and arc flash controlsRefrigerant exposure and ventilationSafe brazing, fire watch, and permitsFall protection and lockout or tagout
