Odisha CHSE +2 VOC Field Technician Air Conditioner case studies
Odisha CHSE +2 VOC Field Technician Air Conditioner · Put your knowledge to work in context.
The Odisha CHSE +2 Vocational Field Technician (Air Conditioner) credential is a higher-secondary vocational qualification for students and working technicians who want recognised, job-ready skills in servicing and installing split and window air conditioners. It suits learners who prefer hands-on trade work over purely academic streams, and it also gives practising helpers a route to formal certification. The Odisha CHSE +2 VOC Field Technician Air Conditioner case studies are 5 cases and about 4,194 words.
1Coaching room that 'never cools' - is it the gas or the condenser?
A technician is sent to a coaching centre in Bhubaneswar where a 1.5 TR (5.28 kW) fixed-speed split unit 'runs all day but never cools'. The room is 5.4 m x 4.2 m x 3.0 m; the west wall has 3.2 m2 of single glazing with no curtain; 14 students and one teacher occupy it from 4 pm to 8 pm and the door opens every few minutes.
875 words, about 4 min2Three old R-22 window units, an unlabelled cylinder and a tight budget
A technician visits a government school in Cuttack that runs three 1.5 TR window air conditioners, all about nine years old and all on R-22. Unit 1 has a leaking flare at the suction valve with clear oil staining; units 2 and 3 still cool but have never been serviced and the school has no refrigerant stock or service records.
784 words, about 4 min3MCB tripping after ten minutes - compressor, capacitor or supply?
A 1.5 TR fixed-speed R-410A split unit in a Bhubaneswar flat trips the 20 A MCB at the distribution board about 10 to 12 minutes after start on a hot afternoon. The technician measures 198 V at the socket with the unit off and 187 V while the compressor is running; running current is 9.2 A against a nameplate 6.4 A.
849 words, about 4 min4A 16 m line, a 9 m lift and no nitrogen on site
A 2.0 TR (7.0 kW) R-32 inverter split is being installed in a first-floor office. The outdoor unit goes on the terrace 9 m above the indoor unit, and the line run is 16 m with three 90 degree bends.
821 words, about 4 min5Leak in a restaurant at dinner time - a customer who wants to sign away the risk
A technician is called to a 30-seat restaurant at 6:30 pm. The 3.0 TR R-32 cassette in the 2.6 m high dining area has stopped cooling and there is a faint smell of refrigerant.
865 words, about 4 min