2-14
Design of W-2WAY ECO-i SYSTEM Unit Specifications
1
2
3
4
5
6
7
8
1-8. Capacity Correction Graph According to Temperature Condition
Capacity characteristics
(The corrected capacity for specific temperature conditions can be found from the graphs below.)
<Cooling>
<Heating>
14HP, 16HP
10HP
Indoor air intake temp. (oC DB)
15
20
25
15
20
25
Capacity ratio (%)
Input ratio (%)
130
120
110
100
90
80
70
60
50
40
130
120
110
100
90
80
70
60
50
–20 –15 –10 –5 0 5 10 15
Outdoor air intake temp. (oC WB)
Indoor air intake temp. (
o
C DB)
15
20
25
15
20
25
Capacity ratio (%)
Input ratio (%)
130
120
110
100
90
80
70
60
50
40
130
120
110
100
90
80
70
60
50
–20 –15 –10 –5 0 5 10 15
Outdoor air intake temp. (oC WB)
Indoor air intake temp. (oC DB)
15
20
25
15
20
25
Capacity ratio (%)
Input ratio (%)
130
120
110
100
90
80
70
60
50
40
130
120
110
100
90
80
70
60
50
–20 –15 –10 –5 0 5 10 15
Outdoor air intake temp. (oC WB)
8HP
* Broken line indicates 14, 16 HP DC inverter unit
Outdoor air intake temp. (oC DB)
130
120
110
100
90
80
120
110
100
90
80
70
60
50
40
30
20
10
)%(oitaryticapaC
)%(oitartupnI
-10 –5 0 5 10 15 20 25 30 35 40 45
WB = 19
o
C
Indoor air intake temp. (WB) = 22
o
C
WB = 16
o
C
Indoor air intake temp. (WB) = 22
o
C
WB = 19
o
C
W
B
=
1
6
o
C
0
11
12HP
130
120
11
100
90
80
70
60
50
40
130
120
0
100
90
80
70
60
50
Capacity ratio (%)
Input ratio (%)
–20 –15 –10 –5 0 5 10 15
Outdoor air intake temp. (oC WB)
15
20
25
15
20
25
Indoor air intake temp. (
oC DB)
Heating capacity correction coefficients for frost/defrost operation
Outdoor intake air
temp.
(°C WB RH85%)
–20–15–10–8–6–5–4–2–10123456
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