DOMESTIC REFRIGERATION AND AIR-CONDITIONING (DOMRAC) SERVICING (NC II) Curriculum Guide – K to 12 INDUSTRIAL ARTS

April 17, 2022

INDUSTRIAL ARTS – K TO 12 BASIC EDUCATION CURRICULUM GUIDE

Technology-Livelihood Education and Technical-Vocational Track specializations may be taken between Grades 9 to 12.
Schools may offer specializations from the four strands as long as the minimum number of hours for each specialization is met.

  • K to 12 LIVELIHOOD EDUCATION
  • JUNIOR HIGH SCHOOL TECHNOLOGY
  • SENIOR HIGH SCHOOL TECHNICAL-VOCATIONAL-LIVELIHOOD TRACK

DOMESTIC REFRIGERATION AND AIR-CONDITIONING (DOMRAC) SERVICING (NC II) CURRICULUM GUIDE

Duration: 640 Hours

GRADE 7/8

This is an exploratory and introductory course which leads to DOMRAC Servicing National Certificate Level II (NC II). It covers five common competencies that a Grade 7/Grade 8 Technology and Livelihood Education (TLE) student ought to possess: (1) using tools, equipment and paraphernalia; (2) performing mensuration and calculation; (3) practicing Occupational Health and Safety (OHS) procedures; (4) maintaining tools, equipment and paraphernalia; and (5) interpreting technical drawing and plans.

The preliminaries of this exploratory course include the following: (1) discussion on the relevance of the course, (2) explanation of key concepts relative to the course, and (3) exploration of career opportunities.

LEARNING COMPETENCIES

1. Explain basic concepts in RAC servicing
2. Discuss the relevance of the course
3. Explore on opportunities for RAC servicing as a career

PERSONAL ENTREPRENEURIAL COMPETENCIES AND SKILLS (PECS)

LO 1. Recognize Personal Entrepreneurial Competencies and Skills (PeCS) needed in RAC
1.1 Assess one’s PeCS: characteristics, attributes, lifestyle, skills, traits
1.2 Assess practitioner’s: characteristics, attributes, lifestyle, skills, traits
1.3 Compare one’s PeCS with that of a practitioner /entrepreneur

ENVIRONMENT AND MARKET (EM)

LO 1. Generate a business idea that relates with a career choice in RAC
1.1 Conduct SWOT analysis
1.2 Identify the different products/services available in the market
1.3 Compare different products/services in RAC business
1.4 Determine the profile potential customers
1.5 Determine the profile potential competitors
1.6 Generate potential business idea based on the SWOT analysis

LESSON 1: PREPARE MATERIALS AND TOOLS (UT)

LO 1. Prepare RAC materials and tools for the task
1.1 Prepare a list of electrical tools and materials for a specific job

LO 2. Request appropriate RAC supplies, materials and tools applicable to a specific job
2.1 Use the appropriate form in requesting for electrical tools, supplies and materials for a specific job

LO 3. Receive and inspect RAC supplies, materials and tools
3.1 Check and inspect received items on the list

LESSON 2: PERFORM MENSURATION AND CALCULATION (MC)

LO 1. Select electrical measuring tools and instruments
1.1 Identify object or component to be measured
1.2 Choose measuring tools to be used for specific tasks
1.3 Identify alternative measuring tools without sacrificing cost and quality of work

LO 2. Carry out measurements and calculations
2.1. Use appropriate measuring devices for specific tasks
2.2. Compute for required data
2.3. Convert data to its equivalent measure

LESSON 3: INTERPRET TECHNICAL DRAWINGS AND PLANS (ID)

LO 1. Analyze signs, RAC symbols and data
1.1 Read and interpret RAC signs, symbols and data
1.2 Analyze RAC components and materials based on electrical signs, symbols and data

LO 2. Interpret technical drawings and plans
2.1. Read blueprints of RAC plans, diagrams and circuits
2.2. Identify necessary tools, materials and equipment according to blueprints of RAC plans, diagrams and circuits

LESSON 4: MAINTAIN TOOLS AND EQUIPMENT (MT)

LO 1. Check condition of tools and equipment
1.1 Label functional and nonfunctional tools and equipment

LO 2. Perform basic maintenance
2.1 Perform cleaning and lubricating of tools
2.2 Observe periodic preventive and maintenance of RAC tools and equipment
2.2.1 Sharpening
2.2.2 Oiling
2.2.3 Insulating

LO 3. Store tools and equipments
3.1. Prepare inventory of tools and equipment
3.2. Store tools and equipment in their proper place

LESSON 5: PERFORM HOUSEKEEPING AND SAFETY PRACTICES FOR RAC SERVICING (OS)

LO 1. Identify hazards and risks
1.1 List down hazards and risks in the workplace

LO 2. Control hazards and risks
2.1 Determine effects of hazards and risks
2.2 Evaluate hazards and risks
2.3 Follow procedure for controlling hazards and risks in the workplace

LO 3. Practice OHSP

GRADE 9/10

This is a specialization course which leads to a DOMRAC Servicing National Certificate Level I (NC I). It covers two (1) core competencies that a high school student ought to possess: (1) domestic refrigeration and air-conditioning unit installation, and (2) service and maintenance of window- type air-conditioning / domestic refrigeration units.

The preliminaries of this specialization course include the following: (1) discussion on the relevance of the course, (2) explanation of key concepts relative to the course, and (3) exploration of career opportunities.

LEARNING COMPETENCIES

1. Explain basic principles of electrical and mechanical aspects of domestic refrigeration unit
2. Discuss the relevance of the course
3. Explore career opportunities in RAC servicing

PERSONAL ENTREPRENEURIAL COMPETENCIES (PeCS)

LO 1. Recognize Personal Entrepreneurial Competencies and Skills (PeCS) needed in RAC
1.1 Assess one’s PeCS: characteristics, attributes, lifestyle, skills, traits
1.2 Assess practitioner’s: characteristics, attributes, lifestyle, skills, traits
1.3 Compare one’s PECSS with that of a practitioner /entrepreneur
1.4 Align one’s PECSS with that of a practitioner/entrepreneur

ENVIRONMENT AND MARKET (EM)

LO 1. Recognize and understand the market in RAC
1.1 Identify the players/competitors within the town
1.2 Identify the different products/services available in the market

LO 2. Recognize the potential customer/market in RAC
2.1 Identify profile of potential customers
2.2 Identify the customer’s needs and wants through consumer analysis
2.3 Conduct consumer/market analysis

LO 3. Create new business ideas in RAC business by using various techniques
3.1 Explore ways of generating business idea from ones’ own characteristics/attributes
3.2 Generate business ideas using product innovation from irritants, trends and emerging needs
3.3 Generate business ideas using Serendipity Walk

LESSON 1: INSTALL DOMESTIC REFIRGERATION AND AIR-CONDITIONING UNIT (60 hours ) (IR)

LO 1. Conduct survey for unit installation
1.1 Assess site conditions and installation according to the job requirements
1.2 Determine tools, equipment and materials needed for installation according to site conditions and site installation requirements
1.3 Record result of the survey on site condition and site installation

LO 2. Install electrical circuit
2.1 Perform roughing-in activities according to appropriate provision in Philippine Electrical Code (PEC)
2.2 Select electrical cabling and wiring devices of correct load carrying capacity
2.3 Install electrical cabling and wiring devices in line with manufacturer’s instructions
2.4 Install power wiring devices in accordance with the PEC
2.5 Test electrical circuit in accordance with PEC

LO 3. Install window type aircon
3.1 Prepare unit and equipment/components based on work procedures
3.2 Install bracket, hangers and frames in accordance with manufacturer’s recommendation
3.3 Position and level unit in line with manufacturer’s instructions
3.4 Install sealing materials to ensure an air tight seal around the unit following manufacturer’s instructions
3.5 Install condensate drain according to manufacturer’s recommendation
3.6 Employ safe manual handling techniques in line with enterprise OH&S procedures
3.7 Perform proper housekeeping (5S)

GRADE 9-12

This is a specialization course which leads to a DOMRAC Servicing National Certificate Level I (NC I). It covers two (2) core competencies that a high school student ought to possess: (1) domestic refrigeration and air-conditioning unit installation, and (2) service and maintenance of window- type air-conditioning / domestic refrigeration units

The preliminaries of this specialization course include the following: (1) discussion on the relevance of the course, (2) explanation of key concepts relative to the course, and (3) exploration of career opportunities.

LO 1. Develop and strengthen personal competencies and skills (PeCS) needed RAC
1.1 Identify areas for improvement, development and growth
1.2 Align one’s PeCS according to his/her business/career choice
1.3 Create a plan of action that ensures success of his/her business/career choice

LO 1. Develop a product/service in RAC
1.1 Identify what is of “Value” to the customer
1.2 Identify the customer
1.3 Explain what makes a product unique and competitive
1.4 Apply creative and innovative techniques to develop a marketable product
1.5 Employ a Unique Selling Proposition (USP) to the product/service

LO 2. Select a business idea based on the criteria and techniques set
2.1. Enumerate various criteria and steps in selecting a business idea
2.2. Apply the criteria/steps in selecting a viable business idea
2.3. Determine a business idea based on the criteria/techniques set

LO 3. Develop a brand for the product
3.1 Identify the benefits of having a good brand
3.2 Enumerate recognizable brands in the town/province
3.3 Enumerate the criteria for developing a brand
3.4 Generate a clear appealing product brand

INSTALL DOMESTIC REFIRGERATION AND AIR-CONDITIONING UNIT (60 hours ) (IR)

LO 1. Conduct performance test on the installation of window type aircon
1.1 Check voltage and current according to unit power requirements
1.2 Check air temperature and velocity based on unit specifications
1.3 Inspect sounds and vibration based on unit specifications
1.4 Prepare Installation, testing and commissioning (ITC) report

SERVICE AND MAINTAIN WINDOW- TYPE AIR-CONDITIONING / DOMESTIC REFRIGERATION UNITS (60 hours ) (SR)

LO 1. Clean and replace air filter
1.1 Remove air filter from the unit
1.2 Check air filter for damage or replacement
1.3 Clean air filter
1.4 Replace defective air filter in accordance with manufacturer’s specification

LO 2. Service evaporator and condenser
2.1 Select tools in dismantling the evaporator / condensing unit as per standard operating procedures (SOPs)
2.2 Use high pressure washer in cleaning evaporator/condensing coil based on standard operating procedure
2.3 Repair defective evaporator/condenser coil fins
2.4 Replace defective evaporator/condenser coil fins in accordance with manufacturer’s specification
2.5 Apply cleaning agent or non-corrosive chemical in cleaning and maintaining evaporator/ condensing coil, fins and other body accessories as per standard operating procedures (SOPs)

Source: K to 12 Industrial Arts – RAC Servicing (DOMRAC) Curriculum Guide

 

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