Daikin FHC-E - Page 30

27
Performance Data
(b) Indoor Condition: 25°C DB, 16°C WB
Outdoor Condition: 35°C DB
EWB EDB
Outdoor temperature
35°C
TC SC PI
19
24 3.51 2.57 1.29
25
x
2
y
2
z
2
27 3.52 2.99 1.29
By Interpolation Method
⇒
25°C – 24°C
=
x
2
– 3.51kW
27°C – 24°C 3.52kW – 3.51kW
⇒ x
2
= 3.51kW
Similarly,
y
2
= 2.71kW
z
2
= 1.29kW
Repeat the same process for (c) & (d) in 1
st
Step
(c) x
3
= 2.98 kW; y
3
= 2.98 kW; z
3
= 1.38 kW (d) x
4
= 3.22 W; y
4
= 2.53 kW; z
4
= 1.40 kW
2
nd
Step:
To obtain the TC, SC & PI for
(a) Indoor Condition: 25°C DB, 17°C WB
Outdoor Condition: 35°C DB
EWB EDB
Outdoor temperature
35°C
TC SC PI
16
25
3.23 3.23 1.27
17
x
5
y
5
z
5
19 3.51 2.71 1.29
By Interpolation Method
⇒
17°C – 16°C
=
x
5
– 3.23kW
19°C – 16°C 3.51kW – 3.23kW
⇒ x
5
= 3.32kW
Similarly,
y
5
= 3.06kW
z
5
= 1.28kW
Repeat the same process for (b) in 2
nd
Step
(c) x
6
= 3.06 kW; y
6
= 2.83 kW; z
6
= 1.39 kW
3
rd
Step:
To obtain the TC, SC & PI for
(a) Indoor Condition: 25°C DB, 17°C WB
Outdoor Condition: 37°C DB
EWB EDB
Outdoor temperature
35°C 37°C 40°C
TC SC PI TC SC PI TC SC PI
25 17 3.32 3.06 1.28 x y z 3.06 2.83 1.39
By Interpolation Method
⇒
37°C – 35°C
=
x – 3.32kW
40°C – 35°C 3.06kW – 3.32kW
⇒ x = 3.22kW
Similarly,
y = 2.97kW
z = 1.35kW
DAIKIN_FF_FHC.indb 27DAIKIN_FF_FHC.indb 27 9/27/2012 2:04:54 PM9/27/2012 2:04:54 PM