Page 15 - R&AC - 1st Year TT Gujarati

Identify and Check vapour heat, sensible heat, latent heat,
absorption refrigeration cycle super heating and sub-cooling,
(VARC) (12 hrs.) saturation temperature,pressure,
31.Unroll, cut and bend soft copper types, units.
tubes. (04 hrs.) Types of Refrigeration systems,

32.Swage and make a brazed joint including vapour absorption
on copper tubing. (10 hrs.)
refrigeration cycle (VARC), water
33.Make flare joints and test them – combination. Study the
with flare fittings. (10 hrs.) construction and working of
34.Pinch off copper tubing. (04 vapor compression cycle, low
hrs.) side & high side of vapour
compression system.
35.Use lock ring tool and various Applications of vapour
fittings of lock ring for compression cycle. Coefficient
servicing of appliances. (10 of Performance (COP), Ton of
hrs.). Refrigeration.(7hrs..)
36.Brazing of Cu to Cu, Cu to Construction and working ofV.C
steel, Cu to brass using AIR Cycle, fundamental operations,
LPG suitable in RAC sub cooling and super
machine. (07 hrs.) heating.(03 hrs..)
37.Brazing of Cu to Cu, Cu to
steel, Cu to brass using Oxy-
LPG. (07 hrs.)
38.Brazing of Cu to Cu, Cu to
steel, Cu to brass using Oxy-
Acetylene. (11 hrs.)
Professional Test mechanical & 39.Identify electrical and Refrigerator (Direct cool &
Skill 49 electrical mechanical components of Frost free)
Hrs.; components. Perform refrigerator direct cool and
Professional leak test, vacuuming, frost free. (05 hrs.) Function, construction, working
Knowledge gas charging, wiring 40.Check and replace electrical of single door direct cool
10 Hrs. refrigerator, frost free refrigerator,
in refrigerator. components of refrigerators. specifications, trouble shooting.
(14 hrs.) Heat Insulation materials. Care
41.Leak test, evacuation, gas and maintenance of refrigerators.
charging in a refrigerator. (15 (10 hrs.)
hrs.)

42.Wiring circuit of refrigerator.
(15 hrs.)

Professional Identify electrical and 43.Installation of refrigerator. Refrigerator (Direct cool &
Skill 16Hrs.; mechanical (8 hrs.) Frost free)
Professional components of a 44.Check, Find Fault and test the Study the electrical components of
Knowledge refrigerator. electrical and other system refrigerator.
03 Hrs. components of refrigerator. Study the mechanical
components
(8 hrs.)
of refrigerator and their types.
(03 hrs..)

Professional Test compressor 45.Testing of compressor. (05 hrs.) Importance of flushing in
Skill 30 motor terminal, start 46.Identification of motor terminals. evaporator and condenser, use of
Hrs.; compressor with (05 hrs.) dry nitrogen for flushing,
Professional relay & without relay, necessity of replacing capillary
Knowledge technique of flushing, 47.Start the compressor with and and drier. Evacuation, leak
07 Hrs. leak testing, replacing without relay. (05 hrs.)

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