Model selecting and capacity calculator, Design of w-3way eco-i system unit specifi cations, Cooling> Page 25
Page 25
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Design of W-3WAY ECO-i SYSTEM Unit Specifi cations
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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.