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Model selecting and capacity calculator, Design of w-3way eco-i system unit specifi cations, Cooling>

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2-15

Design of W-3WAY ECO-i SYSTEM Unit Specifi cations

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3

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1-9. Capacity Correction Graph According to Temperature Condition

Capacity

characteristics

(The corrected capacity for specifi c temperature conditions can be found from the graphs below.)

16HP

10HP

Indoor air intake temp. (

°

F DB)

59

68

77

59

68

77

Capacity r

atio (%)

Input r

atio (%)

130

120

110

100

90

80

70

60

50

40

130

120

110

100

90

80

70

60

50

– 4 5 14

23

32

41

50

59

Outdoor air intake temp. ( °F WB)

Indoor air intake temp. (

°

F DB)

59

68

77

59

68

77

Capacity r

atio (%)

Input r

atio (%)

130

120

110

100

90

80

70

60

50

40

130

120

110

100

90

80

70

60

50

– 4 5 14 23

32

41

50

59

Outdoor air intake temp. ( °F WB)

* Broken line indicates 16 HP DC inverter unit

Outdoor air intake temp. ( °F DB)

130

120

110

100

90

80

120

110

100

90

80

70

60

50

40

30

20

10

)

%(

oit

ar

yti

c

a

p

a

C

)

%(

oit

ar

t

u

p

nI

14 23 32 41 50

59 68 77 86 95

104 113

WB = 66

°

F

Indoor air intake temp. (WB) = 71

°

F

WB = 60

°

F

Indoor air intak

e temp

. (WB) = 71

°

F

WB = 66

°

F

WB = 60

°

F

Heating capacity correction coeffi cients for frost/defrost operation

Outdoor intake air
temp.
(°F WB RH85%)

– 4

5

14

17

21

23

24

28

30

32

33

35

37

39

41

42

Correction coefficient

0.97

0.97

0.97

0.96

0.94

0.91

0.89

0.87

0.87

0.87

0.88

0.89

0.91

0.92

0.95

1.0

*

The heating capacity when frost/defrost operation is considered is calculated by multiplying the heating capacity found
from the capacity graph by the correction coeffi cient from the table above.

1. Model Selecting and Capacity Calculator

NOTE

For model combinations (10 PS Inverter + 16 PS Inverter) of 26 HP or higher, the lower limit for the outdoor air intake
temperature is 41 ˚F.

This manual is related to the following products: