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!"#$A% &$

Window air conditioner

'(-(&)!$*%A +%. AH$#+H!"#$)H%A# HA$+A%A'H#H!+ +"A%

*!!$*%A +"A% (A*A'#% !H +"A%

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3

IntroductionIntroduction

Thermal energy moves from left to right through five

loops of heat transfer:

How does it work?

1)Indoor air

loop

2)

Chilled

water loop

)

!efrigerant

loop

")

Condenser

water loop

#)

Cooling

water loop

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Type of !efrigerationType of !efrigeration

$apour Compression !efrigeration

!efrigeration cycle

Condenser

%vaporator

High

&ressure

'ide

(ow

&ressure

'ide

Compressor%pansion

*evice

12

"

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Type of !efrigerationType of !efrigeration

$apour Compression !efrigeration

!efrigeration cycle

Condenser

%vaporator

High

&ressure

'ide

(ow

&ressure

'ide

Compressor%pansion

*evice

12

"

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Type of !efrigerationType of !efrigeration

$apour Compression !efrigeration

!efrigeration cycle

(ow pressure li+uid refrigerant inevaporator a,sor,s heat and

changes to a gas

Condenser

%vaporator

High

&ressure

'ide

(ow

&ressure

'ide

Compressor%pansion

*evice

12

"

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Type of !efrigerationType of !efrigeration

$apour Compression !efrigeration

!efrigeration cycle

The superheated vapour enters thecompressor where its pressure is

raised

Condenser

%vaporator

High

&ressure

'ide

(ow

&ressure

'ide

Compressor%pansion

*evice

12

"

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Type of !efrigerationType of !efrigeration

$apour Compression !efrigeration

!efrigeration cycle

The high pressure superheated

gas is cooled in several stages inthe condenser

Condenser

%vaporator

High

&ressure

'ide

(ow

&ressure

'ide

Compressor%pansion

*evice

12

"

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Type of !efrigerationType of !efrigeration

$apour Compression !efrigeration

!efrigeration cycle

(i+uid passes through epansion device-

which reduces its pressure and controls theflow into the evaporator

Condenser

%vaporator

High

&ressure

'ide

(ow

&ressure

'ide

Compressor%pansion

*evice

12

"

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Air conditioners do four

things /

remove moisture from the air.

cool the air.

recirculate the air.

0lter out dust.

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11/14Window air conditionerSection Of An Air conditioners

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#mportant parts of window airconditioner -

fans

A room air conditioner has twofans inside.0rst fan second fan

fan

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0rst fan

&ne sits on the room side 1ust behind thegrill, 0lter and evaporator coils.

2his fan pulls the room air through the grill and

0lter, and across the cold coils, then blows it backinto the room.

econd 3an

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THANKS