Lesson 1Protecting sensors, controls, and electrical parts: covering strategies, using low-pressure sprays, and non-conductive cleanersThis section details how to spot sensitive sensors, control boards, and wiring, apply protective covers, pick non-conductive cleaners, use low-pressure sprays, and confirm all electrical and control parts stay dry and work after cleaning.
Locating sensors and control componentsCovering and shielding electrical partsSelecting non-conductive cleaning productsUsing low-pressure spray and mistingPost-cleaning inspection of electronicsLesson 2Drain pan and condensate drain procedures: manual removal, chemical flushing, enzyme treatments, mechanical clearing, and trap and p-trap inspectionThis section details drain pan checks, manual sludge removal, chemical and enzyme treatments, flushing and clearing condensate lines, and checking traps and p-traps to stop leaks, smells, and germ growth in bakery areas.
Inspecting pans for rust, slime, and leaksManual removal of sludge and debrisChemical flushing and enzyme dosingMechanical clearing of blocked drainsTrap and p-trap inspection and primingLesson 3Isolation and setup: lockout/tagout steps, turning off indoor fan and outdoor unit, and verifying isolationThis section explains shutdown and setup steps before cleaning, including lockout/tagout, confirming indoor fan and outdoor unit are off, checking zero voltage where needed, and preparing containment, drainage, and access tools for safe work.
Lockout/tagout for indoor and outdoor unitsVerifying fan and compressor shutdownConfirming isolation and zero energySetting up sheeting and containmentPositioning ladders and access toolsLesson 4Blower wheel, housing, and motor cleaning: safe access, brush/vacuum methods, disinfectant application, and preventing motor contaminationThis section explains safe access to blower wheel, housing, and motor, including lockout, guarding, and balance checks, then covers brush and vacuum methods, targeted disinfectant use, and ways to stop moisture or chemicals entering the motor.
Isolating and accessing blower assembliesDry brushing and HEPA vacuum techniquesDegreasing and disinfecting blower partsPreventing moisture entry into motorsRebalancing and spin testing the blowerLesson 5Filter removal, inspection, cleaning, and replacement: washable vs disposable filters, vacuuming, detergent wash, sanitizing, drying, and labelingThis section explains how to safely remove, check, clean, sanitize, dry, and refit filters in wall-mounted split units, comparing washable and disposable types and detailing labeling to track condition and replacement times.
Identifying washable vs disposable filtersSafe filter removal from wall unitsVisual inspection and defect criteriaVacuuming and detergent washing methodsSanitizing, drying, and labeling filtersLesson 6Protecting bakery operations: covering equipment, removing/covering food, and scheduling to minimize downtimeThis section focuses on protecting bakery work during AC sanitation by covering ovens, mixers, and displays, removing or sealing food, handling aerosols and runoff, timing work to cut downtime, and working with bakery staff and production.
Covering ovens, mixers, and displaysRemoving or sealing exposed food itemsManaging overspray, runoff, and debrisScheduling work around bake cyclesCommunicating plans with bakery staffLesson 7Drying, reassembly, and component verification: air movers, moisture checks, filter reinstall, and sealing access panelsThis section covers controlled drying with air movers, moisture checks on coils, pans, and insulation, proper filter refitting, sealing access panels, unit testing, and recording sanitation results for bakery compliance records.
Using air movers for targeted dryingMoisture checks on coils and insulationCorrect filter orientation and seatingSealing and fastening access panelsOperational testing and documentationLesson 8Evaporator coil cleaning: access, foam and non-foaming cleaners, contact time, coil-safe detergents, fin protection, and rinsing strategiesThis section covers safe access to evaporator coils, choice of foam and non-foaming cleaners, right contact times, coil-safe detergents, fin straightening and protection, and controlled rinsing to avoid water intrusion and overspray.
Gaining safe access to evaporator coilsChoosing foam vs non-foaming cleanersDetermining proper chemical contact timeProtecting and straightening delicate finsControlled rinsing and runoff management
