Service manual

5-5
PERFORMANCE DATA & PRESSURE CURVES
SM WNGDCI 2-E.4 GB
5.3 WNG 72 / DCI 72
5.3.1 Cooling Capacity (kW) - Run Mode
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB/WB TEMPERATURE [
0
C]
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 6.70 7.09 7.49 7.88 8.28
SC 5.04 5.12 5.19 5.27 5.34
PI 1.70 1.74 1.78 1.82 1.85
30
TC 6.35 6.75 7.14 7.54 7.93
SC 4.85 4.92 5.00 5.07 5.15
PI 1.94 1.98 2.01 2.05 2.09
35
TC 6.01 6.41 6.80 7.19 7.59
SC 4.65 4.73 4.80 4.87 4.95
PI 2.17 2.21 2.25 2.29 2.33
40
(Protection Range)
TC 5.67 6.06 6.46 6.85 7.25
SC 4.45 4.53 4.60 4.68 4.75
PI 2.41 2.45 2.49 2.52 2.56
46
(Protection Range)
TC 5.26 5.65 6.04 6.44 6.83
SC 4.22 4.29 4.37 4.44 4.52
PI
2.69 2.73 2.77 2.81 2.85
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
OD – 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 DB Temperature [ºC]
Capacity Ration
CONTENTS