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Model selecting and capacity calculator – Sanyo DHX4852 User Manual

Page 24

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2-14

Design of W-2WAY ECO-i SYSTEM Unit Specifications

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1-7. Capacity Correction Graph According to Temperature Condition

Capacity characteristics

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

16HP

10HP

* The heating capacity when frost/defrost operation is considered is calculated by multiplying the heating capacity found from

the capacity graph by the correction coefficient from the table above.

Outdoor intake
air temp.
(°FWB, RH85%)

Correction coefficient

– 4

5

14

17

21

23

24

28

30

32

33

35

37

39

41

42

0.97 0.97 0.97 0.96 0.94 0.91 0.89 0.87 0.87 0.87

0.89 0.91 0.92 0.95 1.0

0.88

Indoor air intake temp. (

°

F DB)

59

68

77

59

68

77

Capacity ratio (%)

Input ratio (%)

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 ratio (%)

Input ratio (%)

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

ca

pa

C

)

%(

oit

ar

tu

pnI

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 tem

p. (WB) = 71

°

F

WB = 66

°

F

WB = 60

°

F

Heating capacity correction coefficients 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 coefficient from the table above.

1. Model Selecting and Capacity Calculator

TD831138-02_W-2WAY.indb 14

2007/07/26 14:30:36

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