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Educators' Guide for Pedagogy and Assessment

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Unit: 3. Building Services

Construction





Learning Outcome: 1. I can identify appropriate tools and materials for building services installation tasks.

1  I can describe required hand tools and portable power tools to carry out building services installations tasks.
 
Hand tools: mason pencil; tape measure; tube cutters; junior hacksaw; half round file; pipe grips; screwdrivers; bench vice; grips; cable cutters; spirit level; pliers;
 
Power tools: power drills; power drivers; hammer/drills; chaser; grinder; power saws; blowtorch; tube bending machine
2  I can identify materials used to perform building services tasks.
 
Mechanical building services tasks: basic pipe joints; solder end feed types; solder ring type fittings; push fit plastic joints; cutting pipe to correct length;
 
Electrical building services tasks: basic electrical connections; spade connectors; screw terminals; solder type; push fit or clip in connectors; cutting cable to correct length; suitable terminations; cables installed correctly in line with industrial standards.
I can justify the use of appropriate PPE and safe working practices in building services to minimise health, safety and welfare risks.
 COGNITIVE LEARNING
 
Health, safety and welfare: selecting the right tool for the right job; accident prevention and control measures to reduce risks; identification and awareness of hazards according to COSHH; procedures for safe isolation of building services (water, electricity); risk assessment; maintenance of clean and tidy workplace.



Learning Outcome: 2. I can produce a basic electrical installation in a safe manner.

I can identify the hand tools and portable power tools used to perform basic electrical tasks.
 
Hand tools e.g.:-Pliers: side-cutting pliers and long-nose or needle-nose pliers,
-Screwdrivers and nut drivers,
-Wire strippers,
-Wire Crimper,
-Fishing tools,
-Measuring devices,
-Labelling machines,
-Non-Contact Voltage Detector,
-Wire tester,
-Hammer,
-Utility Knife and Cutter,
-Wrench.
 
Power tools: power drills and drivers; power hammer/drills;
mason power saw.
I can identify the various fixtures and fittings used to perform basic electrical installations.
Various fixtures and fittings:-Switches: e.g. one-way, two-way, double pole, intermediate, three-heat, ceiling, time,
-Gang switches: one, two, three, four, five, six, multiple combination;
-Ceiling roses;
-Lamp holders;
-Socket outlet;
-Fused connection unit;
-Shaver unit;
-Cooker control unit;
-Plastic/metal conduit;
-PVC-sheathed system.
5 I can describe electrical working practices as described in legal notices and guidelines.
 
Legal notices: LN225 of 2010 - Electrical Installations Regulations
Guidelines: MRA Guidance Note 1; MRA Guidance Note 2; MRA Guidance Note 3.
I can explain the sequence of operations required to perform a specific electrical task.
 COGNITIVE
 
Electrical task e.g.:
-Assemble, install, test, and maintain electrical or electronic wiring, equipment, appliances, apparatus, and fixtures, using hand tools and power tools;
-Diagnose malfunctioning systems, apparatus, and components, using test equipment and hand tools, to locate the cause of a breakdown and correct the problem;
-Connect wires to circuit breakers, transformers, or other components;
-Inspect electrical systems, equipment, and components to identify hazards, defects, and the need for adjustment or repair, and to ensure compliance with codes;
-Advise management on whether continued operation of equipment could be hazardous;
-Test electrical systems and continuity of circuits in electrical wiring, equipment, and fixtures, using testing devices such as ohmmeters, voltmeters, and oscilloscopes, to ensure compatibility and safety of system. 
I can interpret the symbols present from a given electrical installation drawing.
MANAGING LEARNING
 
Symbols according to BS EN 60617 e.g.: Earth and frame connections, socket outlets, switches, lamps and signalling devices, lighting.
I can produce basic electrical installations in a safe manner whilst adhering with health and safety procedures.
 CREATIVE LEARNING 
 
Produce at least two simple electrical installations (power and light) to acceptable standards:-Select the right tools to use;
-Bend and fix 20mm diameter pipes to construct electrical systems;
-Use 1.5mm2 and 2.5mm2 PVC cable where necessary;
-Use appropriate clips and brackets to support pipes and cables;
-Fix fixtures as indicated and finish work at an acceptable industrial standard whilst adhering to health and safety procedures;



Learning Outcome: 3. I can produce plumbing pipe-joining in a safe manner.

I can list the hand tools and portable power tools required to perform basic plumbing tasks.
 
Hand tools: mason pencil; tape measure; tube cutters; junior hacksaw; half-round file; pipe grips; screwdrivers; bench vice; tube-bending machine; blowtorch.
 
Portable power tools: cordless drill/screwdriver; hammer action drill.
I can identify different plumbing pipes used for domestic and commercial installations. 
 
Plumbing pipes:-Metal pipes: copper; galvanised steel; stainless steel; cast iron;
-Plastic pipes e.g.: Creamy Plastic Chlorinated Polyvinyl Chloride (CPVC), Polyvinyl Chloride (PVC), Cross-linked Polyethylene (PEX), Acrylonitrile-butadiene-styrene (ABS), High-density polyethylene (HDPE), Polypropylene Random Copolymer (PPR).
I can explain the sequence of operations required to perform a specific plumbing task.
 SOCIAL LEARNING 
 
Plumbing tasks e.g.: interpreting drawings and schematics, listing plumbing materials and equipment, inspection and testing, installation of specialised plumbing equipment, plumbing repair, plumbing maintenance and replacement.
I can demonstrate the marking, setting out and the production of plumbing pipe-joining processes with at least two watertight joints in a safe manner so as to minimise health, safety and welfare risks.
PRACTICAL
 
Installing a pipework system:
Select appropriate tools and materials required to install a pipework system; interpret the given diagram and prepare for the installation of the pipework system; cutting pipe to correct length; manipulating pipes by bending and fixing 15mm and 22mm diameter tube; forming watertight pipe joints; using clips and brackets to install pipes to a variety of surface finishes; produce finished work with all joints watertight; pipework runs either horizontal or vertical; all bends 90°±5° and pipework securely and neatly fixed to surface; PPE was worn and health and safety issues were minimised.



Learning Outcome: 4. I can carry out basic maintenance procedures on refrigeration and air-conditioning systems in a safe manner.

8 I can describe the main components of a refrigeration system.
WRITING 
 
Main components of a refrigeration system: condenser; compressor; evaporator; expansion valve.
9 I can describe possible configuration setups for indoor air-conditioning units.
COGNITIVE
 
Configurations: wall-mounted; ceiling-mounted; concealed-mounted (duct connected); floor type. 
10 I can identify specialised tools used to carry out refrigeration and air-conditioning tasks.
 
Specialised tools: Pressure gauges and vacuum measuring instrument; refrigerant leak detector; soldering and brazing equipment; refrigeration manifold; spanners; cutters and bender tools; tools for joining of steel and plastic pipes.
5 I can explain the tasks to be carried out when doing maintenance of an air-conditioning system.
 
Maintenance of an air-conditioning system:
-Check amount of refrigerant in the system;
-Check for refrigerant leaks;
-Check for and seal duct leakage in central systems;
-Measure airflow through the evaporator coil;
-Check electric control sequence;
-Inspect electric terminals;
-Oil motors and check belts for tightness and wear;
-Check the accuracy of the thermostat.
3 I can complete a basic maintenance procedure on refrigeration and air-conditioning system in a safe manner so that to minimise health, safety and welfare risks.
PRACTICAL
 
Basic maintenance procedure checklist:
-Unplug the air conditioner;
-Remove filter and bezel or cover of the unit;
-Spray front coil of the air conditioner with a cleaning agent designed for this use and clean the filter with clean water; 
-Replace cover and filter and restore power after about 10 - 15 minutes;
-Run the air conditioner on cool and check accuracy of the thermostat (if cool air it is likely that the unit requires refrigerant or the compressor has failed);
-Shut the unit off and disconnect power;
-Inspect the outdoor coils;
-Clean the outdoor coils;
-Rinse foaming cleanser away with garden hose;
Reconnect power and test. 




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