Daikin FT-J series Technical Manual page 26

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 = 2.98 kW; y = 2.98 kW; 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 = 3.06 kW; y = 2.83 kW; 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 3.06kW – 3.32kW
⇒ x = 3.22kW
23
Outdoor temperature
35°C
TC SC PI
3.51 2.57 1.29
x y z
2 2 2
3.52 2.99 1.29
Step
st
= 1.38 kW
3
Outdoor temperature
35°C
TC SC PI
3.23 3.23 1.27
x y z
5 5 5
3.51 2.71 1.29
Step
nd
= 1.39 kW
6
Outdoor temperature
35°C
TC SC PI
3.32 3.06 1.28
x – 3.32kW
By Interpolation Method
25°C – 24°C
⇒
27°C – 24°C
⇒ x
= 3.51kW
2
Similarly,
y = 2.71kW
2
z = 1.29kW
2
(d) x = 3.22 W; y
4
By Interpolation Method
17°C – 16°C
⇒
19°C – 16°C
⇒ x
= 3.32kW
5
Similarly,
y = 3.06kW
5
z = 1.28kW
5
37°C
TC SC PI
x y z
Similarly,
y = 2.97kW
z = 1.35kW
x – 3.51kW
2
=
3.52kW – 3.51kW
= 2.53 kW; z
4 4
x – 3.23kW
5
=
3.51kW – 3.23kW
40°C
TC SC PI
3.06 2.83 1.39
= 1.40 kW