Lesson 1Indoor unit mountin': placement heights, refrigerant line chase entry, drip tray orientationExplain correct indoor unit positionin' fi comfort, service access, an' drainage. Detail line set routin', wall penetrations, an' drip tray orientation fi prevent leaks, noise, an' future maintenance issues.
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, an' safety interlocks prior to energizin'Detail safe electrical terminations, conductor sizin', an' groundin'. Include phase rotation checks, control wirin', an' verification of safety interlocks before energizin' di 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 3Documentin' settings an' handin' over basic operation notes to ownerFocus pon documentin' final settings, control parameters, an' test results. Yuh ago prepare owner handover notes, basic operatin' instructions, an' maintenance reminders fi a professional closeout.
Record final control and timer settingsLog pressures, temperatures, and testsCreate basic user operation guideExplain filter cleaning and maintenanceObtain owner sign-off and warranty docsLesson 4Vacuumin' an' evacuation: pump selection, target vacuum level, moisture removal proceduresGuide yuh thru pump selection, hose setup, an' achievin' target vacuum. Emphasize deep evacuation, moisture removal, micron gauge use, an' decay tests fi confirm system dryness an' tightness.
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 an' pressure testin': dry nitrogen pressure test, electronic leak detector useExplain how fi pressurize wid dry nitrogen, isolate sections, an' monitor pressure decay. Yuh ago learn safe regulator use, soap solution techniques, an' electronic leak detector 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 an' mountin' frame installation: levelin', anchor selection fi masonry or stud wallsDetail how fi install wall brackets an' frames fi secure support. Focus pon levelin', anchor choice fi masonry or stud walls, load paths, corrosion protection, an' verifyin' pull-out resistance an' stability.
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 an' commissionin' checks: superheat/subcoolin' measurement, stable temperature verification, drainage test, noise an' vibration checksWalk thru initial start-up, includin' mode selection, superheat an' subcoolin' checks, an' temperature stability. Also cover condensate drainage tests, noise, an' vibration evaluation.
Follow manufacturer start-up sequenceMeasure superheat and subcoolingVerify supply and return temperaturesTest condensate drainage performanceAssess operating noise and vibrationLesson 8Site preparation an' pre-installation checks: tools, permits, clearances, materials checklistCover site readiness before work begins, includin' tool selection, permit verification, an' safe clearances. Yuh ago also build a materials checklist fi avoid delays an' ensure code-compliant, efficient installation.
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 pon exterior wall, anti-vibration pads, clearance an' airflow clearance distancesDescribe outdoor unit placement pon pads or wall brackets, wid attention to clearances, airflow, vibration control, an' service access. Include snow, floodin', an' noise considerations fi long-term 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: cuttin', deburrin', bendin', flare vs brazin' workflow, torque an' sealin' practicesCover cuttin', deburrin', an' bendin' copper lines widout kinkin'. Compare flarin' an' brazin' workflows, torque values, an' sealin' practices fi ensure leak-free, code-compliant refrigerant pipin'.
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 11Openin' service valves, refrigerant release procedure an' handlin' captive refrigerant systemsExplain openin' service valves an' releasin' factory charge widout introducin' contaminants. Cover captive refrigerant systems, valve stem handlin', an' documentin' final operatin' pressures.
Identify service valves and capsBackseat and crack valves correctlyRelease captive refrigerant safelyCheck for leaks after opening valvesRecord operating pressures and temps
