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INSTALL WINDOW-TYPE AIRCONDITIONING/DOMESTIC REFIGERATION UNITS

Learning Outcomes (Based on CBC)At the end of the session the trainees should be able to:

a. Interpret Work Instructionsb. Prepare Cavity for Installationsc. Perform Cavity Workd. Install Unite. Test Unit

A. Introduction This session covers the knowledge, skills and attitudes required to safely install and test window-type air-

conditioning/domestic refrigeration units.

B. Learning Activities

LO1. Interpret Work Instructions

LEARNING CONTENT TRAINER'S ACTIVITY TRAINEES' PRACTICE ASSESSMENT/FEEDBACK

RESOURCES TIME

Discussion on hot to

communicate and confirm work instructions for preparation of

work activity

Demonstrate proper Tools & Equipments in line with work

Active listening andperform the activity

Quiz andInterview

Tutorial Guide Refrigerator Specialist

by Melchor A.

Garupa

Preparation of the work activity

requirements

C. Learning Activities

LO2. Prepare Cavity for Installations

LEARNING CONTENT TRAINER'S ACTIVITY TRAINEES' PRACTICEASSESSMENT/FEEDBACK RESOURCES TIME

Preparation of cavityin line with work instructions

and plans

Interpret and determine work instructionsPrepare cavity for

installation using the right equipment and

applying 5’SHands On

Direct Observation

Interview

Tutorial Guide Refrigerator Specialist

by Melchor A.

Garupa

Discussion and demonstration how to

determine dimensions of cavitybased on work instructions,

compliance and plansUsing the right tools and

equipment

A. Learning Activities

LO3. Perform Cavity Work


Perform Cavity Work Thorough discussion on how toPerform boring/cutting, how to

Hands On

check dimensions and how to align cavities in line with work

instructions


LO4. Install Unit


Discussion and demonstration about the correct load carrying capacity for electrical cabling and wiring devices, how to use sealant, what is condensation

drain

Hands On

Install the unit using safe

manual handling techniquesInterview

Direct

Observation


LO5. Test Unit


Testing Unit in line with

manufacturer’s instructionsDiscussion about testing the

power circuit using recommended line voltage

Hands On Interview Direct

And how to make a report on installation of testing of unit with enterprise procedures

Observation

SERVICE AND MAINTAIN WINDOW-TYPE AIRCONDITIONING/DOMESTIC REFRIGERATION UNITS


a. Clean Air Filterb. Clean Evaporator condenserc. Maintain Motor and Bladesd. Service Electrical Control/Wiringe. Repair Refrigerant Circuit

A. Introduction This session covers the knowledge, skills and attitudes required in maintaining the normal performance and

increasing the life span of window type air conditioning/domestic refrigeration units


LO1. Clean Air Filter


Cleaning the Air Filter

Hand On

The trainer defines air filter and demonstrate filter checking for

Interview

damageDemonstrate what right tools

and cleaning procedures

Actual Observation


LO2. Clean Evaporator/Condenser


Clean Evaporator/Condenser

Discussion and demonstration of proper selection of tools in

dismantling the evaporator/condenser unit as per SOP, how to use cleaning agents and how to use high pressure washer and repair

evaporator/condenser coil fine wire

Actual Quiz and

Performance of the

activityInterview


LO3. Maintain Motor and Blades


Maintain Motor Blades Discussion and demonstration how to check blades and how to lubricate the fan motor

properly and its importance Hands on

InterviewActual

Observation

LO4. Service Electrical Control/Wiring


Discussion and demonstration

Electrical Control/WiringAbout the proper instruments in checking the power supply and how to measure them,

following SOPs.Actual demo on how to

diagnose loose connections and wirings

Hands onDirect

Observation Group Activity Interview


LO5. Repair Refrigerant Circuit

LEARNING CONTENT TRAINER'S ACTIVITY TRAINEES' PRACTICE ASSESSMENT RESOURCES TIME

/FEEDBACK

Cleaning the Air Filter

Hand On

Demonstration of proper tools how to check and inspect all

the parts

InterviewActual

Observation

TROUBLESHOOT WINDOW-TYPE AIR CONDITIONING/DOMESTIC REFRIGERATION SYSTEMS


a. Plan and prepare for troubleshootingb. Identify and rectify faults/troublesc. Test unit

B. Introduction This session covers the knowledge, skills and attitudes to identify, analyze and remedies faults of window type

air-conditioning and domestic refrigeration units


LO1. Plan and Prepare for Troubleshooting



Lecture on wiring diagrams, charts and following manuals

acquired and used. Demonstration on selection of

proper tools and equipment/instruments

Hands On Quiz and Interview


LO2. Identify and Rectify faults/troubles


Identifying and Rectifying

faults/troubles

The trainer discuss how toTest faults and problems,

diagnose them according to SOPs

Active listening and Quiz and perform the activity Interview


LO3. Test unit


/FEEDBACK


The trainer discuss how tocommunicate and confirm

workinstructions for the preparation

ofthe work activity


RECOVER AND RECYCLE REFRIGERANT IN WINDOW TYPE AIRCONDITIONING/DOMESTIC REFRIGERATION SYSTEMS


a. Assess unit for recovery/recyclingb. Set up equipment/recyclingc. Perform refrigerant recovery/recycling

A. Introduction This session covers the knowledge, skills and attitudes required to recover and recycle refrigerants in domestic

air-conditioning and refrigeration systems. This includes evaluation of unit for recovery/recycling, setting up of equipment and performing recovery and recycling operations


LO1. Asses Unit for Recovery/ recycling


/FEEDBACK

Assess Unit for recovery/recycling

Discussion of appropriateness of unit for refrigerant recovery/recycling is

determined according to Clean Air Act/Montreal Protocol

requirements and manufacturer’s specifications

and trade theories

Hands On

Direct Observation

Interview

C. Learning Activities

LO2. Set up Equipment for Recovery/recycling


Set-up equipment for recovery/recycling

Lecture on availability of equipment, instrument and

tools for serviceability and how to gather them according to job

requirementsGroup Activity/Hands On

Direct Observation

Interview


LO3. Perform Refrigerant Recovery/Recycling


Perform Refrigerant recovery/recycling

Discussion about Clean Air/Montreal Protocol, perform refrigerant recovery/recycling

Group Activity/Hands On

Direct Observation

Interview

REPAIR AND RETROFIT WINDOW TYPE AIR CONDITIONING/DOMESTIC REFRIGERATION SYSTEMS AND ACCESSORIES


1. Pull out window type domestic air conditioning/refrigeration equipment2. Prepare air conditioning system for retro fitting3. Replace defective components4. Repair refrigerant leak5. Perform pressure leak test6. Perform dehydration/ vacuum procedures7. Test repaired unit

A. Introduction This session covers the knowledge, skills and attitudes required to in repairing window-type/domestic air-

conditioning and refrigeration systems and accessories.


LO1. Pull out window type domestic air conditioning/refrigeration equipment


Refrigerator and Air Conditioning

By Joy Job Cabangon

Presentation and demonstration of correct

electrical disconnection/connection

Hands On

Direct Observation

Interview Pull-out window-type

domestic air conditioning refrigeration equipment


LO2. Prepare air conditioning system for retro fitting


RESOURCES TIME

Refrigerator and Air Conditioning

By Joy Job Cabangon

Discussion on different faults

identified from visual inspection and performing

operational checkDemonstration on how to evacuate to remove R-12 refrigerant, install retrofit

labels

Prepare air conditioning system for retrofitting Group Presentation

Direct Questioning and

Observation


LO3. Replace defective components


Replace Defective

Components

Hands On

Demonstrations on wiring

diagrams, charts how to use manuals, dismantling,

mounting procedures and how to replace defective

components

Direct ObservationQuestioning

during Demonstration


LO4. Repair refrigerant leak


Repair Refrigerant Leak

Discussion on how to detect leaks, and how to repair in accordance to silver brazing

procedures and requirements

Direct

Observation Hands On

Interview


LO5. Set up Equipment for Recovery/recycling


Perform Pressure Leak Test

Demonstration on how to perform pressure test and the

importance of it Hands On

Direct Observation

Interview


LO6. Perform dehydration/ vacuum procedures


/FEEDBACK

Perform dehydration/vacuum

procedures

Discuss and demonstrate how to perform system

dehydration, installing system analyzer and vacuum pump and

application of methods of evacuation



LO7. Perform Refrigerant Charging


Perform refrigerant and

ChargingDemonstration and discussion on proper refrigerant charging and vapor charging following

SOPs

Hands On Quiz and Interview


LO7. Test repaired unit


RESOURCES TIME

Test Repaired Unit

Active listening andperform the activity

Demonstration and discussion on how to test repaired unit for

cooling performance

Direct Observation

Interview

PERFORM TESTING AND COMMISSIONING WINDOW-TYPE AIR-CONDITIONING/DOMESTIC REFRIGERATION SYSTEMS


a. Prepare for commissioning refrigeration and air conditioning systemsb. Assess refrigeration and air conditioning systemc. Evacuate refrigerant and air conditioning systemd. Charge refrigeration and air conditioning systeme. Perform pre-start tests

A. Introduction This session covers the knowledge, skills and attitudes required to in repairing window-type/domestic air-

conditioning and refrigeration systems and accessories.


LO1. Prepare for commissioning refrigeration and air conditioning systems


Discussion about

commissioning method and program commissioning

instruments, how to perform pre-commissioning checks

Prepare for commissioning

refrigeration and air conditioning systems Hands On

Direct observation

Interview


LO2. Assess refrigeration and air conditioning system


Assess refrigeration and air

conditioning systemsDemonstration and discussion

on checking systems determined by pressure and temperature to isolate faults

and check leaks and contamination



LO3. Evacuate refrigerant and air conditioning system


Evacuate refrigerant and air

conditioning systemDemonstration on proper evacuation of refrigerant

system in accordance to SOPsActive listening and Quiz and

perform the activity Interview


LO4. Charge refrigeration and air conditioning system


RESOURCES TIME

Discussion on proper charging and use of appropriate

lubricating oil and to check unit for leaks using standard tools

Charge refrigeration and air

conditioning systems Active listening and Quiz and

perform the activity Interview


LO5. Perform pre-start tests


Perform Pre-start Test Demonstration on testing

electrical pneumatic and other control fluid, fluid flow,


checking electrical systems, verifying motor, motor ratings and pump rotation direction against fuse ratings, overload,

confirmation of noise and vibration levels

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