HVAC WATT PER SQUARE METER CALCULATIONS

DX (W/m2)

AIR COOLED CHILLERS (W/m2)

WATER COOLED CHILLERS <250 TR (W/m2)

WATER COOLED CHILLERS 250 < TR < 500(W/m2)

WATER COOLED CHILLERS >500 TR (W/m2)

LIGHTING (W/m2)

REIDENTIAL - VILLA

60

71

53

46

44

10

REIDENTIAL - APPARTMENT

60

71

53

46

44

10

CLINIC

85

100

75

65

63

20

SCHOOL

100

118

88

76

74

20

MOSQUE - PRAYER ROOM

115

135

101

88

85

20

BUILDING TYPE

FAST FOOD RESTURANT STAND ALONE FAST FOOD RESTURANT - IN A MALL OFFICE

145

171

128

111

107

20

120

141

106

92

88

20

70

82

62

54

51

20

SHOPPING MALL

70

82

62

54

51

40

STAND ALONE SHOPS

80

94

71

61

59

40

COMMUNITY HALL

115

135

101

88

85

20

DINNING HALL

115

135

101

88

85

20

THEATRE

115

135

101

88

85

20

SHOW ROOM

115

135

101

88

85

40

DX (KW/TR)

AIR COOLED CHILLERS <100 TR (KW/TR)

AIR COOLED CHILLERS 100 - 250 TR (KW/TR)

AIR COOLED CHILLERS >250 TR (KW/TR)

WATER COOLED CHILLERS <250 TR (KW/TR)

WATER COOLED CHILLERS 250 < TR < 500(KW/TR)

1.7

2

2

2

1.5

1.5

1.6

1.6

1.6

0.95

0.95

SYSTEM

TOTAL POWER RATING CHILLER COOLING TOWER FAN

0.04

CONDENSER WATER PUMP

0.06

CHILLED WATER PUMP

0.05

0.05

0.05

0.07

AIR HANDLING UNITS

0.35

0.35

0.35

0.38

WATER COOLED CHILLERS 500 < TR <

WATER COOLED CHILLERS 500 TR >1000(KW/TR)

TOTAL POWER RATING

1.3

1.25

CHILLER

0.75

0.7

DX (m2/TR)

AIR COOLED CHILLERS (m2/TR)

WATER COOLED CHILLERS <250 TR (m2/TR)

WATER COOLED CHILLERS 250 < TR < 500(m2/TR)

WATER COOLED CHILLERS >500 TR (m2/TR)

REIDENTIAL - VILLA

28

28

28

28

28

REIDENTIAL - APPARTMENT

28

28

28

28

28

CLINIC

20

20

20

20

20

SCHOOL

17

17

17

17

17

MOSQUE - PRAYER ROOM

15

15

15

15

15

12

12

12

12

12

14

14

14

14

14

OFFICE

24

24

24

24

25

SHOPPING MALL

24

24

24

24

25

SYSTEM

BUILDING TYPE

FAST FOOD RESTURANT STAND ALONE FAST FOOD RESTURANT - IN A MALL

DX (m2/TR)

AIR COOLED CHILLERS (m2/TR)

WATER COOLED CHILLERS <250 TR (m2/TR)

WATER COOLED CHILLERS 250 < TR < 500(m2/TR)

WATER COOLED CHILLERS >500 TR (m2/TR)

STAND ALONE SHOPS

21

21

21

21

21

COMMUNITY HALL

15

15

15

15

15

DINNING HALL

15

15

15

15

15

THEATRE

15

15

15

15

15

SHOW ROOM

15

15

15

15

15

BUILDING TYPE

/ TR ) 

S ystem ( KW

( Compressor  CondenserF an  ChilledWat erPumps  AHU  FCU  CommonEqui pment ) kW ( ChillerCap acity )TR

Watt/m 2 

( A) 

[( A) xDiversityx( AHU & FCU (TR )ofArea)]  [( AHU & FCU (kW )ofArea)] Area

(Compressor  CondenserFan  ChilledWat erPump  CommonEquipment )kW (ChillerCap acity )TR

ChillerkW / TR 

Diversity



(Compressor  CondenserF an)kW TR

TotalChill TotalAHU

erCapacity

(TR)

& FCU(TR)

COOLING LOADS CHECK FIGURES (EXPERIENCE)

Watt/m2

Btu/m2

CFM/m2

RESIDENENCES

65

500-520

20-22

OFFICES

70

520-540

22-25

SHOPS

80

550-580

26-28

CLASS ROOMS

100

560-600

29-32

MOSQUES

145

650-720

32-35-38

THEATERS

145

650-720

32-35-38

GYMANASIUM

145

650-720

32-35-38

SYSTEM