Lesson 1Electrical requirements: dedicated circuit, wire sizing, disconnect, grounding, surge protectionTells electrical needs for safe, rule-following split AC fitting. Covers special circuits, breaker size, wire size, cut-off place, ground, join, surge guard, and marking for care in Ugandan homes.
Special circuit and breaker sizeWire size and cover typeOutside cut-off place and scoreMachine ground and joinSurge guard and markingLesson 2Evacuation and pressure testing: vacuum pump use, micron gauge procedure, nitrogen pressure checks and leak detection methodsGives details on air removal and pressure test steps to make sure dry, tight system. Covers nitrogen pressure tests, soap and machine leak checks, deep air removal goals, micron tool use, hold tests, and noting final reads.
Nitrogen pressure test waysSoap bubble and machine leak checksAir pump set up and hose pickMicron tool goals and hold testNoting final test resultsLesson 3Mounting systems: wall bracket selection, anchor types, and structural considerationsShows how to pick and fit support systems that safely hold inside and outside units. Covers wall supports, anchors for different stuff, load works, rust fight, and shake and noise thoughts in Uganda builds.
Picking wall supports and standsAnchor kinds for common stuffLoad score and safety extrasRust fight and coversShake and noise thoughtsLesson 4Indoor unit siting: ideal height, clearance, airflow patterns, avoiding heat sources and sunlightShows how to choose best inside unit spot for feeling good, good use, and care reach. Covers fit height, wall and side spaces, air paths, noise, and avoiding heat spots, sun, and blocks in Ugandan rooms.
Suggested fit height rangesLowest side and top spacesAvoiding heat spots and sunAir flow patterns and reach distanceNoise, air moves, and people feeling goodLesson 5Outdoor unit placement: stable pad, clearance for airflow, noise considerations and vibration isolationShows how to pick and ready outside unit spot for steady, quiet, good work. Covers pad pick, anchor, care spaces, air paths, rain and rubbish worries, and shake and noise control in Uganda yards.
Pad pick and level fitNeeded care and air flow spacesAvoiding air back flow and blocksNoise effect on neighbours and insideShake separate pads and fitsLesson 6Drain line routing and trap design to prevent siphoning and odorsShows how to plan and route water drain lines to stop leaks, sucking back, and bad smells. Covers gravity versus pump drains, trap size, air out, slope needs, clean spots, and ends that meet rules and clean ways.
Gravity drain versus pump pickNeeded slope and support spaceTrap size and place rulesAir out to stop sucking backClean spots and drain endLesson 7Connection techniques: flaring vs brazing copper, use of access valves, flare torque specs and leak-prevention practicesCovers ways to join copper lines without leaks. Compares flaring and brazing, shows when each fits, details flare ready, torque numbers, nitrogen clean during brazing, and leak-stop best ways.
When to flare versus when to brazeReady and clean copper tubeFlare nut torque values and toolsNitrogen clean during brazingLeak-stop check stepsLesson 8Startup checklist and commissioning: opening service valves, superheat/subcooling checks, system balancing and test runCovers full start-up and ready process after fitting. Includes opening service valves, check air flow, check superheat and subcooling, balance inside air flow, test run in cooling and heating, and note reads.
Before start look and leak checksOpening service valves safelyMeasuring superheat and subcoolingBalancing inside air flow and coversTest run, data note, and sign offLesson 9On-site safety protocols: electrical lockout/tagout, ladder and fall safety, PPE for cutting/brazing, fire watch and hot work permitsGives main on-site safety rules before and during fitting. Covers electrical lockout/tagout, ladder set, fall guard, PPE for cutting and brazing, fire watch jobs, and hot work permit needs on customer spots.
Lockout/tagout for AC circuitsLadder set and fall guardPPE for cutting and brazingFire watch jobs and timeHot work permits and notesLesson 10Refrigerant piping: piping length limits, elevation differences, proper slope for drain and refrigerant oil returnLooks at refrigerant pipe plan for good work and compressor life. Covers maker length and lift limits, line size, right oil back slope, avoiding traps and bends, cover, and support lines to stop shake.
Max line length and lift limitsLine size per maker chartsOil back slope and trap spotsCover of suck and liquid linesSupport and secure line sets
