Evidence shall show that knowledge has been acquired of safe working practices and installing refrigeration and air conditioning systems, major components and associated equipment. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-EJ107A Refrigeration and air conditioning refrigeration systems, major components and associated equipment installation Evidence shall show an understanding of refrigeration and air conditioning refrigeration systems, major components and associated equipment installation, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects: T1 Refrigeration equipment installation requirements and procedures Standards, codes and requirements applicable to installing refrigeration equipment Environmental and building regulations Major components and associated equipment including condensing units, compressors, condensers, cooling towers, liquid receivers, evaporators, fan coil units, package units, fans and air distribution equipment, pumps Functions, types, operation and applications Installation techniques encompassing: manufacturers specifications and installation instructions; locating and placing major components Accessories installation Connecting piping Maintenance of fire rating integrity. T2 Cool room and freezer room systems installation requirements and procedures Food spoilage encompassing; Effects of storage conditions, Controlled atmosphere, Relative humidity, Evaporator temperature difference, Room design conditions Room types and construction encompassing; Pre-fabricated and permanent type walk-in cool rooms and freezer rooms, Construction, Insulation, Vapour barrier, Frost heave, Interior fittings Layouts and installation encompassing; Location of equipment, Equipment site arrangements and building services, Access and obstructions, Power supply and electrical services, Arrangement of piping Components and features encompassing; Refrigerant controls, Evaporators, Solenoid valves, Crankcase pressure regulators, Defrosting method and mullions, Drain facilities and heaters, Pressured relief valves, Door hardware, Lighting and germicidal lamps System and defrost controls encompassing; Operating conditions, Thermostat and pressure controls, Defrost timers and controllers, Overloads and safety control, Electrical power and control circuits Manufacturers specifications and installation instructions Relevant Standards, codes and Regulation requirements Relevant Public Health requirements T3 Merchandising and display cabinets installation requirements and procedures Types and construction encompassing: Deep freeze meat, dairy, and fruit and vegetables, Multi deck display type, Single deck, well type and island cases, Glass door/reach-in merchandiser Components and features encompassing: Condensing units, Refrigerant controls, Evaporators and fans, Defrosting method and mullions, Drain facilities and drain heaters, Air distribution and air-flow, curtains, Cabinet air temperature, velocity and direction, Accessories, Lighting Layouts and installation encompassing: Location of equipment, Equipment site arrangements and building services, Access and obstructions, Power supply and electrical services, Arrangement of piping System and defrost controls encompassing: Operating conditions, Alarm systems, Thermostats and pressure controls, Defrost timers and controllers, Electrical power and control circuits Multiple systems encompassing: Multiple compressors, Multiple evaporators, Heat reclaim systems, Multi-temperature accessories, Controls and sequencing, Manufacturers specifications and installation instructions Relevant Standards, codes and Regulation requirements Relevant Public Health requirements T4 Residential air conditioning systems installation requirements and procedures Types, components, construction, operation and application of residential air conditioners encompassing: Types: window mounted, high wall, floor and ceiling mounted, cassette and ducted, Typical applications for various types of systems, Components, Construction and Operation of the major components within a system. air distribution, Flexible ducting and associated fittings, fans, filters, noise and vibration, Control systems, Operation of a typical system including reverse cycle Procedures for selecting a system for a specific application encompassing; Determining heat load sources using estimating methods and manufacturers data, unit and associated equipment selection Installation of unit and pipework encompassing: Respect for customers premises, Unit location and mounting, Flexible ducting and associated fittings, Fixing, securing and mounting methods, Safe lifting, use of ladders and platforms, Manufacturers installation, Refrigerant piping: layout, installation, insulation, fastening and covering, Condensate drains and pumps Starting up system encompassing: Manufacturers start up instructions - pressure testing, evacuation, opening outdoor unit valves, checking refrigerant charge: pressures, temperature, sweat line and evaporator superheat, adding refrigerant, leak detection, controls - operating and safety, customer familiarisation Relevant Standards, codes and Regulation requirements T5 Package air conditioning systems installation requirements and procedures Air conditioning design conditions encompassing temperature, humidity and ventilation Package air conditioning systems types, construction, components, ancillary equipment, applications and operating conditions Layouts and installation encompassing; Location of equipment, Equipment site arrangements and building services, Access and obstructions, Power supply and electrical services, Arrangement of piping System controls encompassing; Thermostat and pressure controls, timers and controllers, overloads and safety control, electrical power and control circuits Manufacturers specifications and installation instructions Relevant Standards, codes and Regulation requirements Relevant Public Health requirements |