Service manual

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PERFORMANCE DATA
5.5 WNG 18 DCI
5.5.1 Cooling Capacity Factors - Unit D
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC]
OD COIL
ENTERING AIR DB DATA
22/15 24/17 27/19 29/21 32/23
TEMPERATURE [ºC]
-10 - 20
(protection range)
TC
SC
PI
80 - 110 % of nominal
80 - 105 % of nominal
25 - 50 % of nominal
TC 0.99 1.04 1.10 1.16 1.22
25 SC 1.05 1.07 1.08 1.10 1.11
PI 0.76 0.77 0.79 0.81 0.82
TC 0.93 0.99 1.05 1.11 1.17
30
SC 1.01 1.03 1.04 1.06 1.07
PI 0.86 0.88
0.90
0.91 0.93
TC 0.88 0.94
1.00
1.06 1.12
35
SC 0.97 0.98 1.00 1.02 1.03
PI 0.97 0.98
1.00
1.02 1.03
TC 0.83 0.89
0.95
1.01 1.07
40
SC 0.93 0.94 0.96 0.97 0.99
PI 1.07 1.09 1.11 1.12 1.14
TC 0.77 0.83 0.89 0.95 1.00
46
SC 0.88 0.89 0.91 0.93 0.94
PI 1.20 1.21 1.23 1.25 1.27
Capaci ty Rat i o
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 – Outdoo
r
5.5.2 Capacity Correction Facto
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
27/19
22/15
24/17
29/21
32/23
20 25 30 35 40 45 50
Outdoor Temperature [deg C]
Revision 0 5-9