Curriculum for HVAC Final (QA)

8/17/2019 Curriculum for HVAC Final (QA)

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penetration, mount control system, and refrigerant charging, in install HVAC units, in accordance with the organization’s

approved guidelines and procedures.

Module 3: Remove existing HVAC unitAim: This Module is designed to remove refrigerant and biohazards, look out energy sources, disconnect: electrical wiring

from equipment, vent pipe, duct system, fuel pipes, refrigerant pipes, water pipes, from equipment, and remove HVAC

equipment in removal of HVAC units.

Module 4: Test HVAC unit performance

Aim: This module helps to check HVAC electrical characteristics, verify gas pressure, water pressure, design CFM,

measure temperature, identify condition of combustion chamber, measure relative humidity, check modes of operations,

perform motor test, and compressor efficiency test in tests of HVAC units.

Module 5: Conduct Preventive Maintenance on HVAC Equipment

Aim: This module designed to inspect HVAC system components, heat exchanger, clean burners, blowers, air filter, and

replace filters, belts, lubrication HVAC motors, and bearing, adjust belt alignment and tension in conduct preventive

maintenance of HVAC units.

Module 6: Repair Refrigeration Cycle

Aim: This module is designed to obtain replacement parts, replace motors, compressor, refrigerant dryers, valves,

control, electrical parts, sensors, heat exchangers, gas kits, and repair mechanical damages in repair of Refrigeration

Cycle of HVAC units.


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Competencies gained after completion of the course

The learner will gain following competencies through this training:

Ensure Personal Safety at workplace by an HVAC Technician Initiate HVAC work

Install HVAC Units

Remove existing HVAC unit

Test HVAC unit performance

Conduct Preventive Maintenance on HVAC Equipment

Repair Refrigeration Cycle

Ensure Occupational Health and Safety (OHS)

Knowledge Proficiency

On successful completion of this course, the trainee should be able to:

1. Explain the safety precautions, safety practice and first hand offer treatment for electric shock/accidents.2. Explain Heat ventilation and Air-conditioning and their sources of generation.3. Explain current, volt, and resistance their units and relationship among them i.e. ohm’ s law and its simple

application.4. Describe series and parallel circuits.5. Explain voltage drop in the line.6. Explain the estimation of material and tools for all domestic installation.7. Define the construction of simple measuring instruments i.e. voltmeter, ammeter, watt and KWH meter and their

uses.8. Differentiate between single-phase and three-phase loads.9. Describe the single-phase motor used on machine and their faults rectification.


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Job Opportunities available immediately and in future

After completing this course, learner will have following career opportunities:

Offer services as an HVAC Technician to a HVAC devices installation and service shop, industry and to buildingcontractors.

Work as an Assistant HVAC Technician in Public and Private Organizations.

Seek employment in Industries (manufacture/assembly/installer)

Set up of his or her enterprise.

After gaining sufficient exposure he/she can work as Contractor for Annual Maintenance/Repair of residential/institutional/ of small commercial buildings etc.

Entry requirements

Middle prefer Matriculation

Minimum Qualifications of Trainer

BE / BS Technology (Mechanical/RAC/HVACR) / B. Tech (Pass/Hons) Mechanical/RAC/HVACROR

DAE in RAC/HVAC with 1 year work experienceOR

2 years certificate in RAC/HVAC with 3 years work experience.

Medium of Instructions

Urdu/Local Language


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2. OVERVIEW OF THE CURRICULUM FOR HVAC TECHNICIANModule Title and Aim Learning Units Theory

hoursWorkplace

hoursTimeframeof modules

Module 1: Initiate HVAC work

Aim: This aims to initiate HVAC work. A person will be expected to followdress code, clean up service vehicle,

job site, and perform maintenance oftools, test equipment, delegate work tosubordinate, obtain material from store,report safety violation.

LU1: Follow dress code

LU2: Clean up service vehicle

LU3: Clean up Job site

LU4: Perform maintenance on tools(maintain tools)

LU5: Perform maintenance on testequipment (maintain test equipment)

LU6: Report safety violations

LU7: Delegate work to subordinate

LU8: Obtain material from Store

Module 2: Install HVAC Units

Aim: This module helps to identify jobspecification verify field location andmeasurements, obtain specifiedequipment deliver material on job site,position HVAC equipment, install ductsystem(verify duct system), flues/smoke pipes(verify pipes installation),install control wiring, refrigerant piping.Perform evacuation and dehydration of

LU1: Identify job specifications

LU2: Verify field locations andmeasurements

LU3: Obtain specified equipment

LU4: Deliver material to job site

LU5: Position HVAC equipment


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Module Title and Aim Learning Units Theoryhours

Workplacehours

Timeframeof modules

refrigeration system, install primarywiring, fuel piping, condensate drainpiping, mount supply return air(duct)terminals, seal structural penetration,mount control system, and refrigerantcharging, in install HVAC units, inaccordance with the organization’sapproved guidelines and procedures.

LU6: Install duct system(verify installation ofduct)

LU7: Install flues /Smoke pipes (verifyinstallation of flues/ smoke pipes)

LU8: Install control wiring

LU9: Install refrigerant piping

LU10: Perform evacuation and dehydrationof refrigeration system

LU11: Install primary wiring

LU12: Install fuel piping

LU13: Install condensate drain piping

LU14: Mount supply and return air (Duct)terminals

LU15: Seal structural penetration

LU16: Mount control systems

LU17: Refrigerant charging

Module 3: Remove existing HVAC unit

Aim: This Module is designed toremove refrigerant and biohazards,look out energy sources, disconnect:

LU1: Remove refrigerant and biohazards

LU2: Lock out energy sources

LU3: Disconnect electrical wiring from


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Workplacehours

Timeframeof modules

electrical wiring from equipment, ventpipe, duct system, fuel pipes,refrigerant pipes, water pipes, fromequipment, and remove HVACequipment in removal of HVAC units.

equipment

LU4: Disconnect vent piping from equipment

LU5: Disconnect fuel piping to equipment

LU6: Disconnect duct work to equipment

LU7: Disconnect refrigerant piping toequipment

LU8: Disconnect water piping to equipment

LU9: Remove HVAC equipment

LU10: Dispose off removed items

Module 4: Test HVAC unitperformance

Aim: This module helps to checkHVAC electrical characteristics, verifygas pressure, water pressure, designCFM, measure temperature, identifycondition of combustion chamber,measure relative humidity, checkmodes of operations, perform motortest, and compressor efficiency test intests of HVAC units.

LU1: Check HVAC equipment electricalcharacteristics

LU2: Verify gas pressure at equipment

LU3: Verify water supply to equipment

LU4: Verify design CFM

LU5: Measure Temperature

LU6: Identify condition of combustionchamber

LU7: Measure relative humidity

18 80 98


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Workplacehours

Timeframeof modules

LU8: Check modes of operation

LU9: Perform motor Test(s)

LU10: Perform Compressor Efficiency Test

Module 5: Conduct PreventiveMaintenance on HVAC Equipment

Aim: This module designed to inspectHVAC system components, heatexchanger, clean burners, blowers, airfilter, and replace filters, belts,lubrication HVAC motors, and bearing,adjust belt alignment and tension inconduct preventive maintenance ofHVAC units.

LU1: Inspect HVAC system components

LU2: Clean heat exchangers

LU3: Clean burners

LU4: Clean blower assembly

LU5: Clean air filters

LU6: Replace filters

LU7: Lubricate HVAC motors and bearings

LU8: Replace belts

LU9: Adjust belt alignment and tension

Module 6: Repair Refrigeration Cycle

Aim: This module is designed to obtainreplacement parts, replace motors,compressor, refrigerant dryers, valves,control, electrical parts, sensors, heatexchangers, gas kits, and repairmechanical damages in repair of

LU1: Obtain replacement part(s)

LU2: Replace motors

LU3: Replace compressors

LU4: Replace refrigeration dryers


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Workplacehours

Timeframeof modules

Refrigeration Cycle of HVAC units. LU5: Replace valves

LU6: Replace controls

LU7: Repair electrical wiring

LU8: Replace electrical parts

LU9: Replace Electronics circuits/cards

LU10: Replace sensors

LU11: Replace heat exchangers

LU12: Replace gas kits

LU13: Repair mechanical Damages


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3. TEACHING AND LEARNING GUIDELINES FOR HEATING VENTILATION AIR CONDITIONINGTECHNICIANThere is no specific methodology of teaching this curriculum. Preferable independent and responsible work action as theaim of the training are imparted in such fields of education, where it is part of the overall methodological concept. Thusevery methodology can contribute to achieving the targeted objectives. Methods that directly promote the capacitybuilding are particularly suitable and therefore should include appropriately in the teaching

3.1. Module-1: INITIATE HVAC WORK

Objective of the Module: It will cover the initiation HVACR work in regards dress, services vehicle, tools and equipment anddelegation of work and safety.

Suggested duration: 40 hours Theory: 10 hours Practice: 30 hours

Learning Unit Learning Outcome Learning Elements Duration(Hours)

MaterialRequired

LearningPlace

LU1: Followdress code

Tra inee wi l l be ab le to :

Follow Personal ProtectiveEquipment(PPE) beforeinitiate work

Demonstrate how to usePPE (personal protectiveequipment)

Gentle haircut, or coveredproperly for safely work

Cut nail as describedorganization

Explain the importance ofPersonal safety measures

Explain work place safetymeasures

Describe how to Utilize PPE

Perform workplace safetyaccording to standard proceduresof trade

Models, wallcharts, PPE,Fireextinguisher,First Aid

ClassRoom /Trainingworkshop

LU2 : Clean upservice vehicle

Tra inee wi l l be ab le to : ClassRoom /


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MaterialRequired

LearningPlace

Check vehicle fuel to attain job site

Check breaking systemaccordingly

Check cooling system ofvehicle to maintain vehicleperformance

Inspect electrical system ofvehicle accordingly

Check vehicle functions

Describe light vehicle rule andregulations according to standards

Demonstrate physical fitness ofdriving

Explain travel route of jobsite

Explain importance of water levelin battery

Perform basic electricalmaintenance of vehicle

Perform basic mechanicalmaintenance

Perform positive attitude duringdrive

Trainingworkshop

LU3 : Clean upJob site


clean slippery material fromworkplace & surrounding for

smooth operation Remove extra material from

workplace to reduceuncertainty

Prepare platform for cleanand safe job done

Clear workplace before work

Perform good housekeepingaccording to organization

standards Arrange clear light and properventilation

Demonstrate work ethics

Toxic material prevention at jobsite

Perform disposing-off methods of

ClassRoom /Trainingcentre


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MaterialRequired

LearningPlace

Explain basic mechanics(vibration, noise, humidity, airpressure, atmospheric pressure,)

Describe Boil’s law

Describe Charles’s Law

Explain Refrigerant and propertiesof best/common Refrigerants.

Explain effect of pressure onBoiling point & on Temperature

Explain basic refrigeration cycle

Explain Air Conditioning

Explain Conditioned Space

Explain psychometric chart

Demonstrate use of testequipment

Maintain test equipment asdescribed

Store test equipment as describedstandards

LU6: Reportsafetyviolations


Collect evidence of safety Aware the safety rules and


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MaterialRequired

LearningPlace

violations

Check electrical hazards

Check mechanical risks

Report safety violation toconcerned if any

regulations of HVACR workshop

Describe Electric short circuit andreasons of short circuit

Explain basic firefightingequipment and their usage

Describe hazards material(electrical, mechanical andchemical in HVARC filed)

Describe emergency procedure ofworkshop

Fill the job cards and procedure ofsafety reporting

LU7: Delegatework tosubordinate


Sequence the job

Split the job

Check the work done by

subordinates

Plan job requirement in context ofhuman resource

Delegate job responsibility tosubordinate as requisition of job

Job distribution according to plandescribed

Demonstrate Quality

Assure quality assurance ofworkers performance


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MaterialRequired

LearningPlace

LU8: Obtainmaterial fromStore


Make list of requiredmaterials according to job.

Verify the material as perstandards

Identify material as requested for job

Assure quality and quantity ofmaterial

Proceed Store requisition

Check material as per standardsof HVACR field


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3.2. Module-2: INSTALL HVAC UNITS

Objective of the Module: To install the HVACR unit’ components and accessories, with procedure of installation and safetymeasures of installation process



MaterialRequired

LearningPlace

LU1: Identify jobspecifications


List tools and equipmentaccording to job

Prepare toolkit according to job

Arrange proper equipment

Estimate manpower

Explain Job card/WorkOrder/Complaint Sheet

Prepare list of tools and equipmentas required for job

Prepare toolkit according to jobrequirement

Demonstrate handling ofequipment and tools as describedstandards

Demonstrate selection ofmanpower according to jobspecification


LU2: Verify fieldlocations andmeasurements


Visit the field location

Select the proper location

Take measurement

Explain field visit parameters joblocation

Effect of surrounding medium onConditioned Space


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MaterialRequired

LearningPlace

Verify measurements as per job requirement

Explain basic Heating/Cooling loadcalculation

Explain in HVAC BTU, Watt andTon of Refrigeration

Explain Ventilation and infiltration

Define Rules of Heat

Explain Type of Head

Perform checking of resources at job site

Perform Estimation of materialsaccording to measurements

LU3: Obtainspecifiedequipment


List required equipment

Collect required equipmentfrom source

Check the physical conditionof equipment

Identification of job as described

Explain Store issuance procedure

Select required equipmentaccording to job description

Understand the equipmentphysical condition

Perform physical inspection

LU4: Delivermaterial to job

Trainee will be able to:


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MaterialRequired

LearningPlace

site Load material safely

Unload material safely

Get acknowledgement fromuser accordingly

Characteristic of equipment

Safety measures of loading/unloading

Handling of equipment machines

Understand procedure ofequipment delivery andacknowledgement

Explain Importance ofdocumentation, against Handing /Taking over of an Equipment

LU5: PositionHVACequipment


Prepare foundation (base) forequipment

Arrange hoisting machines

Place HVAC equipment onprescribed location

Describe importance ofbase/foundation

explain commissioning steps ofequipment

Ensure commissioning work

Explain safety steps of equipmentinstallation/position

LU6: Install ductsystem (verifyinstallation ofduct)


Check duct route according todrawing

Verify duct sizes according to

Explain duct drawing according to jobsite

Describe usage of Ductolator


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MaterialRequired

LearningPlace

drawing

Check hangers and joints ofducts

Check duct joints by smoketest

Check duct joints by light test

Check insulation accordingly

Explain CFM and its calculation

Perform verification of ductmeasurements according todrawing.

Describe checking procedures ofduct according to drawing

Perform checking of hangers, and joints of duct (hanger’s strength) Perform smoke/ light test of ductaccording to Standard

Describe insulation of duct andtype of insulation,

Rapping procedure of duct

Describe sound liner/barrier

LU7: Installflues /Smoke

pipes (verifyinstallation offlues/ smokepipes)


Check flues/smoke pipes routaccording to drawing

Verify flues/smoke pipes sizeaccording to drawing

Check Support/ hangers and joints of flues/smoke pipes

Check flues/smoke pipes

Explain flues/smoke pipe routaccording to drawing

Describe checking procedure offlues/smoke pipe according todrawing

Assure flues/smoke pipe, hanger, joints, height of pipes according todrawing


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MaterialRequired

LearningPlace

height

Check insulation accordingly Perform flues/smoke pipesinsulation check according tostandards

Explain Flow rate and itscalculation

Explain problems of vibration inpiping

Explain MS Pipe Standardschedule (40 & 60)

LU8: Installcontrol wiring


Check wining route accordingto drawing.

Verify wire gauge according todrawing

Verify wiring circuitaccordingly

Connect wiring according todrawing

Explain control wiring drawing andcontrol symbols

Describe type of wires in controlwiring and standards

Explain control wiring circuits

Perform control circuit wiringaccording to drawings

Assure control circuits wiringaccording to drawing

Describe color coding of controlwires

Type of wiring joints


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MaterialRequired

LearningPlace

Explain Series & parallel circuitsLU9: Installrefrigerantpiping


Check piping route accordingto drawing

Verify piping sizes accordingto drawing

Install hangers for piping

Perform pipe jointing

Install piping accordingly

Perform pipe leakage testaccording to local standards

Express the pipe types and pipe joints

Explain pipe jointing methods

Perform pipe joints of refrigerant inHVAC

Explain leakage test andprocedure

Describe importance of Hangers inpiping system

Describe insulation of refrigerantpipe according to drawing

Perform insulation of refrigerantpipe according to drawings andrequirement

Fabrication of refrigerant pipesaccording to drawing

Explain colour coding standards ofpipes

Perform colour coding of pipeaccording to drawing


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MaterialRequired

LearningPlace

LU10: Performevacuation anddehydration of

refrigerationsystem


Install high pressure gauge

Flash with nitrogen

Install compound gauge (lowpressure) with system

Ensure evacuation throughvacuum pump

Ensure dehydration in systemwith deep vacuum throughvacuum pump

Explain type of gauges of HAVCand standards

Perform measurement withcompound gauge

Explain flashing procedure ofaccording to standards

Fallow safety measure accordingto gases and environment

Explain importance of Vacuumingin a Refrigeration system

Perform flash with nitrogen andother cleaning chemicals

LU11: Installprimary wiring


Check wining route accordingto drawing

Verify wire according todrawing standard

Verify wiring circuit accordingto requirement

Connect wiring as described

Understand primary wiring drawing

Describe type of wires in primarywiring and standards

Explain primary wiring circuits,phase sequence, star & delta

Perform primary circuit wiringaccording to drawings

Assure primary circuits wiring


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MaterialRequired

LearningPlace

according to drawing

LU12: Install

fuel piping


Check fuel pipes routeaccording to drawing andcolour coding

Verify fuel pipe sizesaccording to drawing

Check Support/ hangers and joints of fuel pipes

Install fuel pipes according todrawings

Perform leakage test


Perform pipe joints of fuel in HVAC


Fabrication of fuel pipes accordingto drawing

Explain colour coding standards ofpipes


LU13: Installcondensatedrain piping


Check drain pipes routeaccording to drawing

Verify drain pipe sizesaccording to drawing

Install Support/ hangers and joints of drain pipes

Install drain pipes according todrawing


Perform pipe installation and jointsof drain in HVAC


Explain Steam Trap


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MaterialRequired

LearningPlace

check drain pipes level Explain colour coding standards ofpipes


Explain levelling procedure ofdrain pipe

Perform levelling of drain pipe

LU14: Mountsupply, returnand fresh airDucts


Check duct route according todrawing and colour coding

Verify duct size according todrawing

Check hangers and joints ofduct

Mount duct according todrawing

Check duct joints by smoketest

Check duct joints by light test

Check duct insulationaccordingly.

Explain supply, return and fresh airduct rout according to drawing

Explain air mixing chamber andfiltration

Explain type of filters, air dumper,diffuser, grills, vibration eliminators

Describe checking procedure ofsupply and return air ductaccording to drawing

Assure hangers, and joints ofsupply and return air duct,

Perform supply and return air ductinsulation, check according tostandards

LU15: Seal Tra inee wi l l be ab le to :


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MaterialRequired

LearningPlace

structuralpenetration Seal structure opening during

installation accordingly Explain sealing materials ofstructure and insulations

Perform sealing on wall, celling,underground

LU16: Mountcontrol systems


Select position of controlsystem accordingly

Place control equipment onprescribed location

Check control systemperformance

Explain control system mountingposition

Describe procedure of placementof control system according toenvironment and access

Understand the functions ofcontrol system and application

Perform checking of controlsystem results, parameters

LU17:Refrigerantcharging


Purge the charging linesaccordingly

Charge the refrigerant

Start the system accordingly

Check performance

Describe evacuation, purgingprocess as per requirement

Explain charging methods (byweight, vapour, pressuretemperature relation)

Perform purging according tostandard


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MaterialRequired

LearningPlace

Charge Refrigerant in System

Perform test run of systemaccordingly and check parameter


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3.3. Module-3: REMOVE EXISTING HVAC UNIT

Objective of the Module: To perform the removal operation of HVACR system and components following safety and standardprocedures



MaterialRequired

LearningPlace

LU1. Removerefrigerant andbiohazards


Connect refrigerant recoverysystem

Recover the refrigerant from

system

Disconnect refrigerantrecovery system

Recycle the recoveredrefrigerant

Differentiate between Ozonefriendly and Ozone depletingrefrigerants

Elaborate recovery, recycling and

reclaiming

Explain how to install recovery unit

Explain how to remove recoveryunit

Demonstrate reclaiming process ofrefrigerants

Demonstrate recycling process of

refrigerants


LU2. Lock outenergy sources


Disconnect main powersource

Disconnect fuel supply fromsystem

Explain safety rules of electricalhazards, mechanical, fuelbiohazards

Explain procedure of taggingsystem, and standards


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MaterialRequired

LearningPlace

Tag out system according tolocal standards

Explain procedure of disconnectionof electrical, fuel source

Perform disconnection of electricalpower source

Perform disconnection of fuel supplysystem

Tag electrical wire and pipes ofHVARC system

Explain importance of dead/blockRefrigerant pipe (open circuit)

LU3. Disconnect electricalwiring fromequipment


Identify wiring through colourcoding

Remove electrical wiring asper standard

Remove control wiring fromsystem

Explain colour coding of wiring

Explain methods of removing mainelectrical wiring

Elaborate methods of removingcontrol electrical wiring

LU4. Disconnect vent pipingfrom equipment


Mark vent points according tostandard

Disconnect vent piping fromequipment

Explain ventilation process

Demonstrate identification ofmarked vent points

Demonstrate isolating vent piping


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MaterialRequired

LearningPlace

equipment Explain different types of insulationmaterial

Demonstrate to insulate andinsulation removing process

Demonstrate isolating methods ofrefrigerant piping from equipment

LU8. Disconnect water pipingfrom equipment


Mark water piping pointsaccording to requirement

Close gate valve according asrequired

Remove insulation from ductsystem

Disconnect water piping fromequipment

Explain different piping systems inchillers

Explain different types of watercontrol valves such as gate valves,glove valves, check valves, waterflow valves, strainers etc.

Demonstrate marking of waterpiping points according to colourcoding

Explain working principles of gatevalve

Explain different types of insulationmaterial

Demonstrate how to insulate andinsulation removing process

Demonstrate isolating methods ofwater piping from equipment


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MaterialRequired

LearningPlace

LU9. RemoveHVACequipment


Arrange hoisting machines

Remove equipment fromfoundation

Explain working principles ofhoisting machine

Demonstrate attaching hoistingmachine with HVAC equipment andlifting method

Demonstrate isolating methods ofHVAC equipment from foundation

LU10. Dispose-off removeditems


Collect removed itemsaccording as requested

Dispose-off removed items

Explain about the safe andappropriate practices for picking upremoved items.

Demonstrate safety measures e.g.handling, storing, disposing of andremoved items.


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3.4. Module-4: TEST HVAC UNIT PERFORMANCE

Objective of the Module: To demonstrate performance test of system according to standards



MaterialRequired

LearningPlace

LU1: CheckHVAC equipmentelectricalcharacteristics

Tra inee shou ld ab le to :

Test earth leakage breaker

Test short circuit breaker

Check voltage at equipment

according to local standard

Check HVAC equipmentcurrent according to systemparameters

Explain Electrical earth procedure

Describe earth leakage breaker andearth testing equipment

Explain voltage drop on load and

effect of low voltage

Explain procedure of system voltagetest

Explain HVAC current followmeasurement procedures

Perform electrical voltage, current,earth leakage test and recordparameters

Class

Room /

Training

workshop

LU2: Verify gaspressure atequipment

Tra inee shou ld be ab le to :

Install pressure gaugesaccordingly

Check performanceparameters

Explain HVAC equipment rating andstandards

Explain pressure gauge installationprocedures


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MaterialRequired

LearningPlace

Perform measurement of pressurewith gauges and note parameters somatch with standard

LU3: Verify watersupply toequipment


Check the water flow switch

Install pressure gaugesaccordingly

Check performanceparameters

Explain hydronic system andstandards

Explain pressure gauge installationprocedures of water system

Perform measurement of waterpressure with gauges and note

parameters

LU4: Verifydesign CFM


Check the CFM at fan outlet

Check the CFM at roomoutlet

Compare with rating CFMaccordingly

Explain CFM calculation and airvelocity meter measurementprocedure

Perform CFM testing at fan outlet,room outlet according torequirement and standards

LU5: MeasureTemperature


Check water temperatureaccordingly

Check Air temperature

Check refrigerant

Explain temperature units andconversion

Explain comfort level/zoneaccording to standards


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MaterialRequired

LearningPlace

temperature Explain wet bulb and dry bulbtemperature

Describe procedure of temperaturemeasurement of air, water,refrigerant

Perform temperature measurementof air, water, refrigerant and noteparameters

LU6: Identifycondition ofcombustionchamber


Check the fuel supply

Check flame

Check temperature ofcombustion chamber

Check condition of fluegases

Explain type of fuel and fuelling

system

Explain type of flame, andprocedure of flaming of combustionchamber

Explain effect on flame

Perform flaming operation accordingto requirement

Understand flue gases, calorificvalues of fuels

Explain environmental effect of fluegases

Check flue gases with pressuregauges and smoke detectors


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MaterialRequired

LearningPlace

LU7: Measurerelative humidity


Check humidity with

humidistat

Explain psychometric properties of

Air

Describe relative humidity

Define humidistat applicationprocedure

Use of humidistat

LU8: Checkmodes ofoperation


Check heating mode

Check cooling mode

Check dry mode

Check wet mode

Explain refrigeration cycle Describe performance check chart(weekly, monthly, quarterly halfyear, yearly)

Explain humidifier and dehumidifier

Explain HVAC symbols, ducts andpipes symbols, HVACR Mechanicalsymbols.

LU9: Perform

motorTest(s)


Check alignment

Check noise level with dBmeter

Check Vibration

Explain alignment tools andprocedure

Describe noise and levels

Describe vibration

Perform alignment of motors

Check noise level with dB meter


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MaterialRequired

LearningPlace

Check vibration with vibration meter

LU10: PerformCompressorEfficiency Test


Check suction pressure

Check discharge pressure

Check noise level by dBmeter

Check current

Explain compressor operation

Explain suction and dischargepressure

Explain compressor lubrication

Explain compressor safetydevices(overload, Low PressureSwitch, High Pressure Switch, OilPressure Switch, Dual PressureSwitch, water flow switch

Explain Compressor and it types

Describe suction and dischargepressure checking procedure

Check suction pressure with gauge

Check discharge pressure withgauge

Check noise level with dB meter

Check current of compressor withclip-on meter( tong-tester)

Record parameters of compressor

Explain standardperameter/specification ofcompressor


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3.5. Module-5: CONDUCT PREVENTIVE MAINTENANCE ON HVAC EQUIPMENT

Objective of the Module: To carry preventive maintenance of system equipment and components



MaterialRequired

LearningPlace

LU1: InspectHVAC systemcomponents


Check drain system

Check electrical components

Check mechanical components

Check physical condition ofevaporator

Check physical condition ofcondenser

Fill the preventive maintenancechart

Explain electrical componentchecking procedure

Explain mechanical componentchecking procedure

Explain problem due carbon inelectrical circuit/connection

Describe physical condition ofevaporator, condenser

Explain checking procedure ofevaporator, condenser andcompare with standardsparameters

Check physical condition ofevaporator, condenseraccording to standards

Describe preventivemaintenance charts, scheduleand recording procedure ofcharts

Perform preventivemaintenance chart, recording ofparameters

Class

Room /

Training

workshop


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LU2: Clean heatexchangers


Remove air filter

Clean evaporator coil

Clean condenser coil

Clean drain pipes

Explain cleaning chemicals andmaterial characteristics

Describe cleaning proceduresof air filter, coils and pipes

Explain internal, externalcleaning procedures

Explain type of air filter

Describe air filter cleaningprocedures

Perform air filter cleaning

Perform evaporator andcondenser cleaning

Perform drain pipe cleaning

LU3: Cleanburners

Tra inee mus t be ab le to :

Dismantling burners

Remove carbon fire nozzle

Re-assemble burners

Explain burner and types

Describe dismantling andassembling procedure

Demonstrate dismantling andassembling of burners

Explain cleaning chemicals and

material characteristics Explain internal, externalcleaning procedures

Demonstrate burner cleaning


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LU4: Cleanblower assembly


Dismantle blower assembly

Clean parts

Lubricate moving parts

Re-assemble blower

Explain blower and types

Describe dismantling andassembling procedures

Demonstrate dismantling andassembling of blowers

Explain cleaning materialscharacteristics

Describe cleaning parts andmechanical parts of blower

Lubricate mechanical (moving)parts of blower (blade,bearings, etc)

Explain internal, externalcleaning procedures

LU5: Clean airfilters


Remove air filter

Clean air filter

Re-fix air filter

Explain type of air filter

Explain cleaning chemicals andmaterial characteristics

Describe cleaning proceduresof air filter

Describe air filter cleaningprocedures

Perform air filter cleaning

Describe procedure of re-assembling of air filters

Perform re-assembling of airfilters


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LU6: Replacefilters


Check physical condition offilter

Remove filter Replace filter

Explain type of filters

Describe checking procedure ofphysical condition of filters

Explain removal, replacementprocedures of filters

Perform removal, replacementof filters

LU7: LubricateHVAC motors andbearings

Tra inee Shou ld be ab le to :

Dismantle motor

Check bearing

Lubricate bearing

Explain type of motors andstructure

Explain circulation pumps andits types

Explain procedure of lubricationof bearings

Perform lubrication of bearings

LU8: Replacebelts


Check the belts

Replace belts

Explain types of belts andprocedure of replacement

Explain pulley and belt

Perform replacement of belts

LU9: Adjust beltalignment andtension


Check the alignment

Check the noise level

Align the belt

Explain alignment procedureand tool

Explain noise level checkingprocedure

Perform alignment of belt


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3.6. Module-6: REPAIR REFRIGERATION CYCLE

Objective of the Module: perform the repairing operation of system component



MaterialRequired

LearningPlace

LU1: Obtainreplacementpart(s)


Check all mechanicalcomponents

Prepare requisition

Received from store

Explain specification of parts

Explain procedure of checking of parts

Describe requisition procedure of parts

Demonstrate mechanical componentschecking

Describe receiving procedure fromstore

Demonstration receiving of parts fromstore

Class

Room /

Training

workshop

LU2: Replacemotors


Remove electricalconnections

Dismantle motor

Replace motor

Align motor

Connect electrical supply

Explain dismantling, installationprocedure of motors

Demonstrate removal of motors Describe electrical connections ofmotors

Perform installation of motor

Explain coupling system

Perform alignment of motor

Connect electrical supply as described


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LU3: Replacecompressors



Disconnect refrigerant pipes

Dismantle compressor

Replace compressor

Connect refrigerant pipes

Connect electrical supply

Explain recovery procedure ofrefrigerant

Explain disconnection procedure ofpipes from compressor

Demonstrate recover of refrigerantfrom system

Describe replacement procedure ofcompressor

Demonstrate connection of refrigerantpipes

Describe leak test procedure

Demonstrate leak test

Connect electrical supply ofcompressor

LU4: Replacerefrigerationdryers(core)/filer


Dismantle drier

Replace core

Explain types and use of drier

Explain dismantling procedure

Demonstrate replacement ofcore(drier)/drier filter

LU5: Replace

valves


Dismantle valves Replace valves

Explain types and use of valves

Explain dismantling procedure ofvalves

Demonstrate replacement of valves

LU6: Replacecontrols


Dismantle control

Explain types controls

Explain dismantling procedure ofcontrol


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Replace control Demonstrate replacement of control

LU7: Repairelectrical wiring


Check electricalconnections

Check insulation

Explain type of electrical connections

Explain procedure of checkingelectrical connections

Describe type of insulation

Perform electrical connection test

Perform continuity test of connections

LU8: Replaceelectrical parts



Replace electrical parts

Connect electricalconnections

Explain electrical parts replacementprocedure

Identification of electrical parts

Perform functionality test beforeinstallation.

Demonstrate replacement of parts

Demonstrate re-connection of newlyinstalled parts

LU9: ReplaceElectronicscircuits/cards


Remove electronics cards

Replace electronics cards

Explain electronics cards replacementprocedure

Explain colour coding of resistance

Demonstrate replacement of cards

LU10: Replacesensors

Tra inee shou ld be ab le to : Explain type of sensors


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Remove sensors

Replace sensor Explain replacement procedure ofsensors

Explain evaluation of Sensor and Alternate

Demonstrate replacement of sensors

LU11: Replaceheatexchangers


Remove condenser

Remove evaporator

Replace condenser

Replace evaporator

Explain heat exchanger, condenser,evaporator replacement procedure

Demonstrate replacement ofcondenser, evaporator

Explain Absorption System andcrystallization in Absorption Chillers

LU:12 Replacegas kits


Remove gas kits

Replace gas kits

Explain type of gas kits

Explain replacement procedure of gaskits

Demonstrate replacement of gas kits

LU13: Repairmechanical

Damages


Align door Repair hinges

Repair door handle

Replace door liner

Repair door cap

Adjust levelling foot screw

Explain mechanical repairingprocedure

Explain aligning procedure of door Perform alignment of door

Explain replacement procedure of doorcomponents

Demonstrate replacement of doorcomponents

Perform door cap repairing


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Replace door end cap.

Adjust levelling foot screw


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3.7. Module-7: DEVELOP PROFESSIONALISM

Objective of the Module: To develop professional attitude and maintain professionalism at workplace environment.

Duration: 36hours Theory: 16hours Practice: 20hours


MaterialRequired

LearningPlace

LU1 :Communicate withco-worker


Communicating within adepartment.

Communication with otherdepartments.

Dealing with vendors.

Interaction with otherorganisations.

Using various media tocommunicate effectively.

Communication Tools

Communication ethics

Dealing with vendors and otherorganisations.

Appropriate use of electronic andrelative media when required

Effective communication withJunior staff and Co workers

Communication within thedepartment and interaction withother departments

Whiteboard,multimedia,computersystem.

Classroom

LU2 : Managingtime


Managing time to complete theassigned work.

Managing workload as per task.

Checking own work regularly toensure accuracy

Handling time division with co-workers.

Importance of Punctuality

Maintaining task calendars

Importance of multitasking

Checking of work (self /supervisors)

Importance of managing timeaccording to task priorities,involving management and co-workers.

Whiteboard,multimedia,computersystem,WorkplaceProcedureGuidelines

Classroom


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LU3 : Upgradingskills


Participation in skill tests

Attending seminars /workshops.

Participating in competitionstime to time.

Awareness upcoming markettrends.

Importance of staying up-to-date

Development of personal skillsand efficiency

Improvement of skill sets over timeby way of seminars, workshopsand competitions.

Importance of trends and marketresearch to work role

Whiteboard,multimedia,computersystem andWorkplace

ProcedureGuidelines

Classroom

LU4 : Keeping theworkplace clean


Keeping the workplaceorganised.

Ensuring clean working

environment.

Requirements of a clean andorganised workplace

Effective and efficient organisationof work area

Importance of observing hygiene

Whiteboard,multimedia,computersystem,Workplace

ProcedureGuidelines

Classroom

LU5 : Workingwithin a team


Showing good team skills. Taking an appropriateappearance.

Showing comfort and tolerance.

Presenting and observing good

work ethics.

Skills required to successfullyparticipate in teams

Workplace standards forprofessional appearance as aHVACR technician

Interpersonal skills required towork within teams

Requirements for work ethics forHVACR technician role.

Whiteboard,multimedia,computersystem,WorkplaceProcedureGuidelines

Classroom


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5. LIST OF TOOLS, MACHINERY & EQUIPMENT

Item Description Quantity Item Description Quantity

Air measurement tools Allen key setBench viceCapillary tube cleanerCenter punchChiselsClamp on amp meterCombustion analysis toolsDigital thermometerDraft gaugeDrillsFile set

Filler gaugeFlare toolsGas charging adopterGrindersHollow punchLaddersLeak detectorsMega-meter complete setMicron gaugeMulti-meterNitrogen tankPiercing valvePinch off toolPipe cutter (for GI Pipes)Pipe vicePliersPressure temp. measuring toolsPulley pullerReamers (Copper)

5 set20 set20 nos5 set

20 set20 nos20 nos5 nos5 set5 set5 set

20 set

20 set20 set20 set5 set5 nos

20 nos5 set5 set5 nos5 set

20 nos5 nos

20 nos20 nos5 set5 set

20 nos5 set5 set

Recovery machines Refrigerant gaugeRing spinner set (inch)Ring spinner set (mm)Riveting gunSaws (complete with blade)ScalesScissorsSheerShovelSight glassSling psychomotorSoldering iron

Sprit levelSteel ruleSwaging toolsSwedgeTap and die tools TachometerTin cutterTorchTry squareTube benderVacuum cleanerVacuum pumpsVernier callipersWire brushWire gaugeWrenches (assorted)Screw driverHammer set (MS, copper, rubber)Hand Electric Drilling MachineCrimping ToolSoldering Iron

5 set20 nos20 nos5 set

20 nos20 nos20 nos20 nos5 nos5 nos5 nos

20 nos

5 nos20 nos5 set5 nos5 set5 nos5 set

20 nos5 set5 nos5 set

20 nos20 nos5 set5 set

20 set5 set5 nos5 set


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Item Description Quantity Item Description QuantityOxy Acetylene gas cylinder/ OxyBlow torchCompressorEmpty cylinder for refrigerant

Nitrogen cylinder with two stage regulatorDifferent types of electric motors

20 set5 set5 set5 set

5 set5 set

Dry bulb & wet bulb thermometerCompressor condenserEvaporatorExpansion devicecapillary

20 nos5 set5 set5 nos


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Documents

Curriculum for HVAC Final (QA)