Electra CN 25 DCI, Service Manual

Page: 25 / 96

5-9
PERFORMANCE DATA & PRESSURE CURVES
SM CN 1-E.1 GB
5.3 CN 50 DCI
5.3.1 Cooling Capacity (kW) - Run Mode
[230V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB/WB TEMPERATURE [C
0
]
OD COIL
ENTERING AIR DB
TEMPERATURE [
0
C]
DATA 22/15 24/17 27/19 29/21 32/23
-10 - 20
(protection range)
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
PI 25 - 50 % of nominal
25
TC 4.83 5.15 5.47 5.78 6.10
SC 3.43 3.50 3.57 3.64 3.71
PI 1.23 1.25 1.27 1.30 1.32
30
TC 4.60 4.92 5.23 5.55 5.86
SC 3.35 3.42 3.49 3.56 3.63
PI 1.37 1.39
1.42
1.44 1.46
35
TC 4.37 4.68 5.00 5.32 5.63
SC 3.26 3.33 3.40 3.47 3.54
PI 1.51 1.54
1.56
1.58 1.61
40
TC 4.14 4.45
4.77
5.08 5.40
SC 3.17 3.24 3.31 3.38 3.45
PI 1.66 1.68 1.70 1.73 1.75
46
TC 3.86 4.17 4.49 4.80 5.12
SC 3.07 3.14 3.21 3.28 3.35
PI 1.83 1.85 1.88 1.90 1.92
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., ( o C)
DB – Dry Bulb Temp., ( o C)
ID – Indoor
OU – Outdoor
5.3.2 Capacity Correction Factors
Cooling Capacity Ratio Vs. Outdoor Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
20 25 30 35 40 45
Outdoor Temperature [ºC]
Cap
aci
ty
Rat
io
CONTENT