Lesson 1Indoor unit mounting: placement heights, refrigerant line chase entry, drip tray orientationExplains right inside unit placing for comfort, service reach, and draining. Details pipe line paths, wall holes, and drip tray setup to stop leaks, noise, and later upkeep problems.
Select optimal wall and mounting heightPlan refrigerant line chase and routingDrill and seal wall penetrationsSet and level indoor mounting plateOrient and test condensate drip trayLesson 2Electrical connections, phase checks, and safety interlocks prior to energisingDetails safe electrical endings, wire sizing, and earthing. Includes phase turn checks, control wiring, and confirming safety locks before powering the split system.
Verify supply voltage and breaker sizeTerminate power and ground conductorsConnect control and communication wiringCheck phase rotation on three-phase unitsTest safety interlocks and fusesLesson 3Documenting settings and handing over basic operation notes to ownerFocuses on recording final setups, control settings, and test outcomes. You will make owner handover notes, simple use guides, and upkeep reminders for a pro finish.
Record final control and timer settingsLog pressures, temperatures, and testsCreate basic user operation guideExplain filter cleaning and maintenanceObtain owner sign-off and warranty docsLesson 4Vacuuming and evacuation: pump selection, target vacuum level, moisture removal proceduresGuides you on pump picking, hose setup, and reaching target vacuum. Stresses thorough clearing, water removal, micron gauge use, and hold tests to confirm system dryness and seal.
Select appropriate vacuum pump sizeConnect hoses and core removal toolsPull vacuum to target micron levelPerform standing vacuum decay testRecognize signs of moisture or leaksLesson 5Leak detection and pressure testing: dry nitrogen pressure test, electronic leak detector useExplains pressurising with dry nitrogen, separating parts, and watching pressure drop. You will learn safe regulator use, bubble solution methods, and electronic leak finder application.
Set up nitrogen cylinder and regulatorPressurize system to test pressure limitsCheck joints with soap solutionUse electronic leak detector correctlyRecord test pressure and durationLesson 6Wall bracket and mounting frame installation: levelling, anchor selection for masonry or stud wallsDetails fitting wall brackets and frames for firm support. Focuses on levelling, anchor choice for brick or frame walls, load routes, rust guard, and checking pull strength and steadiness.
Assess wall type and load capacityChoose anchors for masonry or studsMark, drill, and clean anchor holesLevel brackets and tighten fastenersVerify bracket alignment and rigidityLesson 7Start-up sequence and commissioning checks: superheat/subcooling measurement, stable temperature verification, drainage test, noise and vibration checksWalks through first start-up, including mode choice, superheat and subcooling checks, and temp steadiness. Also covers water drain tests, noise, and shake checks.
Follow manufacturer start-up sequenceMeasure superheat and subcoolingVerify supply and return temperaturesTest condensate drainage performanceAssess operating noise and vibrationLesson 8Site preparation and pre-installation checks: tools, permits, clearances, materials checklistCovers site readiness before starting, including tool choice, permit checks, and safe spaces. You will also make a materials list to avoid hold-ups and ensure rule-following, smooth fitting.
Verify site access and work area safetyConfirm permits, codes, and utility locationsCheck indoor and outdoor unit clearancesPrepare complete tools and materials listInspect structure for mounting suitabilityLesson 9Outdoor unit installation: base pad or brackets on exterior wall, anti-vibration pads, clearance and airflow clearance distancesDescribes outside unit placing on bases or wall brackets, noting spaces, air flow, shake control, and service reach. Includes snow, flood, and noise thoughts for lasting reliability.
Select base pad or wall bracket systemSet required service and airflow clearancesInstall and position anti-vibration padsLevel unit and secure to supportsPlan for drainage, snow, and floodingLesson 10Refrigerant line installation: cutting, deburring, bending, flare vs brazing workflow, torque and sealing practicesCovers cutting, smoothing, and bending copper lines without crimps. Compares flaring and brazing steps, torque levels, and sealing ways to ensure no-leak, rule-compliant refrigerant piping.
Measure, cut, and deburr copper tubingUse bending tools to avoid kinksPrepare and form accurate flaresApply torque to flare nuts correctlyInsulate and support line sets properlyLesson 11Opening service valves, refrigerant release procedure and handling captive refrigerant systemsExplains opening service valves and letting out factory refrigerant without adding dirt. Covers held refrigerant systems, valve handling, and noting final running pressures.
Identify service valves and capsBackseat and crack valves correctlyRelease captive refrigerant safelyCheck for leaks after opening valvesRecord operating pressures and temps
