Daikin H Series Technical Manual page 48

Performance Data
(b) Indoor Condition: 25°C DB, 16°C WB
Outdoor Condition: 35°C DB
EWB EDB
24
19 25
27
Repeat the same process for (c) & (d) in 1
(c) x = 24.78kW; y = 22.37kW; z
3 3
2 Step:
nd
To obtain the TC, SC & PI for
(a) Indoor Condition: 25°C DB, 17°C WB
Outdoor Condition: 35°C DB
EWB EDB
16
17 25
19
Repeat the same process for (b) in 2
(c) x = 24.46kW; y = 20.86kW; z
6 6
3 Step:
rd
To obtain the TC, SC & PI for
(a) Indoor Condition: 25°C DB, 17°C WB
Outdoor Condition: 37°C DB
EWB EDB
25 17
By Interpolation Method
37°C – 35°C
⇒
=
40°C – 35°C 24.46kW – 27.69kW
⇒ x = 226.40kW
44
Outdoor temperature
35°C
TC SC PI
29.18 18.11 9.99
x y z
2 2 2
29.30 21.10 10.00
Step
st
= 10.68kW
3
Outdoor temperature
35°C
TC SC PI
26.93 24.04 9.85
x y z
5 5 5
29.22 19.11 9.99
Step
nd
= 10.73kW
6
Outdoor temperature
35°C
TC SC PI
27.69 22.40 9.90
x – 27.69kW
By Interpolation Method
25°C – 24°C
⇒
27°C – 24°C
⇒ x = 29.22kW
2
Similarly,
y = 19.11kW
2
z = 9.99kW
2
(d) x = 26.82kW; y
4
z = 10.84kW
4
By Interpolation Method
17°C – 16°C
⇒
19°C – 16°C
⇒ x = 27.69kW
5
Similarly,
y = 22.40kW
5
z = 9.90kW
5
37°C
TC SC PI
x y z 24.46
Similarly,
y = 21.78kW
z = 10.23kW
x – 29.18kW
2
=
29.30kW – 29.18kW
= 17.83kW;
4
x – 26.93kW
5
=
29.22kW – 26.93kW
40°C
TC SC PI
20.86 10.73