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8/6/2019 Hvac Topics

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Takes up Scheduling, Engineering, Material Indenting, Installation,

Commissioning, Testing & Handing over of the job

Provides automation solution to various customer requirements

Supports sales team with technical solution & costs

Utilizes automation innovatively to optimize throughput

should have experience in executing BMS & HVAC controls jobs

Must have sound knowledge of HVAC & HVAC controls

Must have hands on experience in estimation & controls through

DDC

Should have executed and lead several Integrated Building

Management Systems jobs

n

Course Content as given below:

Electrical Design manual for commercial & residential projects Upto

33KV voltage level

1. General

Fundamentals of electricals


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Types of electricity

Source of electricity

Generation, Transmission & distribution of electricity

Ohms law

Symbols

Definitations, Terms & terminologies

Important formulas

2. Codes & Standards to be followed

Indian electricity rules

National electrical code of India (NEC)

National building code of India (NBC)

Applicable standards issued by Bureau of Indian standards (BIS)

Institute of Electrical & Electronics Engineers (IEEE)

Regulations of local fire authorities.

Requirements stipulated by Pollution control Board for Noise, Air &

Water Pollution


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3. Electrical equipments and its application used in the installation

Control devices

Measuring devices

Circuit protection devices

Transformers

Diesel generators

Capacitors

Bus ducts, Busbars, Cables (HT/LT) & wires

Motors & Pumps

Luminaries General & Emergency

Isolators & socket outlets

UPS/Inverter& Battery banks

Earthing or Grounding

Lightning arrestor

Building Management Systems(BMS)


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4. Means of electrical distribution for installation

Panels(HT/LT)/Switch Board/Motor control centers (MCCs)/Final

Distribution boards (DBs)

Cable trays,trunking or raceways, conduits & underground Pipes

(Concrete/PVC)

5. Major electrical loads used in the installation

Lighting load Internal & external

Utility power load

HVAC loads like Chillers, AHUs, FCUs, Pumps, Fans etc.

PHE & FF loads like Water transfer pumps, Booster pumps, Fire

Fighting pumps, Jockey pumps etc.

Lifts (Elevator) load

Computer & data centre (Server) loads for office building

6. Electrical design calculations


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Load & maximum demand calculation

Transformer sizing calculation

DG sizing calculation

Short circuit calculation

Voltage drop calculation

Capacitor sizing calculation

Cable sizing calculation

Earthing calculation

Lighting calculation

UPS/Inverter sizing calculation

Battery sizing calculation

7. Various design stages & Sequence of electrical design procedure

Concept design stage:

Understanding the building plans, elevations & sections


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Gathering specific data from the utilities(Electricity board)

Understanding clients specific requirements

Assessment of the type of installation like outdoor/indoor

substation(Point of supply)

Preparation of basis of design which should include the cost

estimate.

Schematic design stage:

Preparation of Load calculation to arrive maximum peak demand

Sizing of all Equipments,cables,cable trays

Electrical design calculations

Preparation of single line schematic of electrical distribution

system with metering options

Preparation of equipment layouts like Substation, plant rooms.

Preparation of lighting, small power, earthing & miscellaneous

layouts

Preparation of technical specification

Detailed design stage:


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Preparation of detail layouts including sectional details wherever

required

Coordination with other services like HVAC,PHE & FF layouts

Preparation of bill of quantities(BOQ)

Issue for tender

Construction design stage:(Generally this stage is performed by

electrical Contractors)

Preparation of shop drawings based on the tender drawings issued

by

Electrical consultants for installation.

After installation the entire installation shall be tested &

commissioned with the respective authorities.

As built drawings shall be prepared and handed over to clients

representative.

After

the completion of the course, the participants would be able to :


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Handle the basic tools & equipments in the workshop with

safety

Upkeep of the workshop tools & equipment

Identify the main mechanical components & electric motors used inRAC trade

Maintain the inventory

Install a refrigerator/room air conditioner/water cooler/deep freeze

Service a refrigerator/room air conditioner/water cooler/deep freeze

Do Pre-delivery inspections

Check performance

Identify refrigerants using gauges

Air conditioner wiring

Detailed Course Content

I Basic Refrigeration & Air Conditioning

i) Familiarization of Safety Procedures

ii) Identification of tools & equipments

iii) Care and Maintenance

iv) Identification of different types of :

a. Compressor ( open type, Semi sealed ,

Sealed )b. Condenser ( air cooled/ Water cooled)


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c. Evaporator

d. Expansion device

e. Use of thermometer

f. Gauges( Compound & Pressure)

v) Use of measuring instruments such as

a. Volt meter

b. Ammeter

c. Ohmmeter

d. Multi meter

. Series and Parallel Connection

vi) Test of open & Short Circuit

vii) Identification of various electric motors

viii) Service & installation of Refrigerator & Air

Conditioner, Bottle Cooler, Water Cooler

II Repair & Maintenance of Refrigerator/Deep Freeze/Water Cooler

i) Cut, Flare, Swag, Braze

a. Prepare joints before brazing

b. Flare & Swag copper pipes

. Braze


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i) Practice measuring, Voltage, Current, Resistance

a. Measure current, Potential difference, Resistance

b. Check series of the compressor with the help of test lamp andMulti meter

iii) Check resistance, Diode, Relay, thermostat, OLP etc.

iv) Refrigerator & deep freezer wiring practices

a. Refrigeration wiring

b. Deep freezer wiring

v) Service of Refrigerator & deep freezer

a. Replacement of Components

b. Flush, Vaccumise & Gas Charging

c. Performance testing

vi) Trouble Shooting & Performance of Refrigerator/Deepfreezer/Water Cooler

a. Fault finding in refrigerator

b. Fault finding in Deep freezer.

c. Fault Finding in Water Cooler


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III Repair & Maintenance of Air Conditioners

i) Familiarization of Safety Procedures

ii) Identification of tools & equipments

iii) Cut, Flare, Swag, Braze

a. Prepare joints before brazing

b. Flare & Swag copper pipes

c. Braze

iv) Practice measuring, Voltage, Current, Resistance

a. Measure current, Potential difference, Resistance


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b. Check series of the compressor with the help of test lamp and

Multi meter

v) Test electrical components used in Air Conditioner

a. Relay testing, Thermostat, timer, starting capacitor, runningcapacitor, over load protector, Fan capacitor, Fan / blowermotor.

b. Checking up of Compressor winding

vi) All the A/c. unit wiring

a. PSC, CSC, Split Ac With remote & without Remote wiring

vii) Service of Window type air conditioner

a. Fan/ Blower motor service

b. Dismantling & assembling the unit


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c. Replacing of components

d. Gas charging system

e. Performance Testing

viii) Service of split type air conditioner

a. Fan/ Blower motor service

b. Appliance Assessing

c. Unit Dismantling & assembling

d. Replacing of components

e. Gas charging system


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f. Performance Testing

ix) Trouble Shooting & performance of Air conditioner

x) units

a. Fault finding in Window Ac/Split AC

b. Fault finding in Remote window Ac

c. Fault finding in Remote split Ac

d. Air filter unit

urses Description

I. Plumbing Systems As per NBC and UPC


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Fundamentals of Plumbing System

Introduction

Definitions

Concepts

Fixtures, Faucets and Fixture fittings

Wash Basin

Water Closet

Bidet

Bath Tub

Shower

Urinals

Kitchen Sink

Floor Drain

Design of Domestic Water Supply and Distribution System

Requirements of Water Supply System

Water Demand Calculations


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Water Storage Calculations

Underground Sump(UGS) sizing

Elevated storage Reservoir(ESR) sizing

Internal Water Supply System

Direct Pumping System

Hydro-pneumatic system

Over Head tank distribution system

Design Procedure for Internal Water Supply System

Flow rate (q) & Loading Unit (z) From Probability equation

Hazen Williams Formula for Head Loss Calculation

Internal Water Supply Pipe sizing calculations]

Pumping Calculations HP/Watts

Number of tapping to be connected in Bigger Diameter Pipe

Material used in Internal water supply system

External Water Supply System

Number of Population served

Number ofFixtures served by Each Pipe

Design Procedure for External Water Supply System


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External Water Supply Pipe Sizing Calculations

Material used in External water supply system

Water Supply Schematic Layout

Design of Sanitary Drainage System

Requirements of Sanitary Drainage System

Types of Sanitary Drainage Systems

Single stack system

Single stack (partially ventilated) system

One Pipe System

Two Pipe System

System requirement for Internal Sanitary Drainage System

Internal Sanitary Drainage Pipe Sizing Calculations

Design Procedure for External Sanitary Drainage System

External Sanitary Drainage Pipe Sizing Calculations

Calculation of Slope by Mannings formula

Calculating Depth of Inspection Chamber/ Manholes

Sanitary Drainage Schematic Layout


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Design of Storm Water Drainage System

Using Continuity Equation, Mannings Formula and Rational Formula

Storm Water Drainage Pipe Sizing Calculations

Material used in Sanitary Drainage system

Introduction to the specialized PHE

Schematic Layout of Water Treatment Plants

Schematic Layout of Sewage Treatment Plants

Plumbing Drawings

Typical Floor Plan - Plumbing Layout

Toilet Plan & Elevations

Enlarged Toilet - Plumbing Layout

Toilet Fixtures Mounting Details

Enlarged Kitchen & Utility - Plumbing Layout

Water Supply, Drainage & RWP - Schematic


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II. Fire Fighting Systems

Fundamentals ofFire Protection System

Introduction

Definitions

Requirements ofFire Protection System

Fire extinguisher

Hose Reel

Dry Riser

Wet Riser

Down Comer

Yard Hydrant

Automatic Sprinkler system

Introduction to the Fire Detection Application


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Design ofFire Protection Schematic Layouts and Pipe Sizing

Design ofFire Water Storage and Pumping Calculations

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