Lesson 1Pre-installation checklist: documentation, tools, manufacturer manuals, PPE, and pre-job safety briefingDis section walk thru pre-job plannin, includin reviewin drawings an manuals, verifiyin permits, assemblin tools an materials, inspectin PPE, an conductin a structured safety an scope briefin wid all crew members.
Review load calculations and equipment dataConfirm permits, codes, and inspection needsVerify tools, instruments, and consumablesCheck PPE condition and jobsite accessConduct pre-job safety and task briefingLesson 2System integration and controls wiring: thermostat types, communication wiring, zoning considerations, and heat pump mode configurationDis section cover integratin di heat pump wid thermostats, zonin panels, an air handlers, includin low-voltage wirin, communication buses, control power, an correct configuration a heatin, coolin, an auxiliary heat modes.
Thermostat selection and compatibility checksLow-voltage wiring diagrams and labelingCommunicating controls and bus topologiesZoning panel setup and damper controlHeat pump mode, staging, and lockout setupLesson 3Refrigerant procedures: evacuation steps, vacuum hold test, leak testing methods (nitrogen pressure, electronic detectors), and charging per manufacturer superheat/subcool targetsDis section explain proper evacuation, includin deep vacuum targets, vacuum hold tests, nitrogen sweeps, leak detection methods, an chargin procedures weh follow manufacturer superheat or subcoolin specifications an ambient conditions.
Manifold, hoses, and core removal setupDeep vacuum targets and decay testingNitrogen pressure testing and safetyElectronic and bubble leak detectionCharging by weight, superheat, or subcoolLesson 4Line set fabrication and routing: choosing tubing size, brazing technique, leak prevention, vacuuming protocols, and insulation selectionDis section detail selectin proper line set size an material, routin fi avoid damage an noise, brazin an nitrogen purginn, pressure integrity, evacuation preparation, an insulation methods fi prevent sweatin an capacity loss.
Sizing suction and liquid lines from chartsPlanning routes, supports, and wall penetrationsBrazing joints with nitrogen purgeProtecting valves and components from heatInsulating and securing line sets correctlyLesson 5Indoor unit and air handler installation: mounting, service clearances, filter access, condensate pan and drain routingDis section focus pon mountin indoor units or air handlers, ensurin service clearances, alignin supply an return connections, installin an sealin condensate pans an drains, an providin accessible, sealed filter arrangements.
Mounting methods and structural supportService clearances and access panelsDuct connections and sealing practicesCondensate pan slope and trap designCondensate drain routing and freeze protectionLesson 6Outdoor unit installation: site layout, pad placement, leveling, anchoring, required clearances, and airflow considerationsDis section explain how fi select an prepare di outdoor location, install an secure di pad, level an anchor di unit, an maintain proper clearances an airflow paths fi ensure quiet, efficient, an serviceable operation.
Assess site, setbacks, and noise constraintsPad selection, placement, and anchoring methodsLeveling techniques and vibration isolationClearance requirements and airflow pathwaysSnow, ice, and debris protection strategiesLesson 7Start-up sequence and commissioning: airflow measurement, static pressure, temperature split checks, refrigerant pressures and temperatures, defrost verification, and safety interlocks testingDis section cover di first startup sequence, includin verifiyin airflow an static pressure, checkin temperature split, recordin refrigerant pressures an temperatures, confirmn defrost operation, an testin all safety interlocks.
Pre-start inspections and power checksAirflow measurement and static pressureTemperature split and capacity indicatorsRefrigerant pressures and line temperaturesDefrost, safeties, and documentationLesson 8Electrical installation: disconnect installation, breaker and conductor sizing per NEC, control wiring, grounding, surge protection, and conduit useDis section detail line-voltage an control power installation, includin breaker an conductor sizin to NEC, disconnect placement, groundin an bondin, surge protection, an proper use a conduit, fittings, an labellin.
Breaker and conductor sizing per NECOutdoor and indoor disconnect placementEquipment grounding and bonding pathsSurge protection device selectionConduit types, routing, and terminations
