Electra DELTA 22 Service Manual page 13

5.2 Delta 25+25 DCI
5.2.1 Cooling Capacity (kW) - Run Mode (Unit A or B)
230[V] : Indoor Fan at High Speed.
OD COIL ENTERING
AIRDB TEMPERATURE
[ o C]
-10 - 20 (protection range)
25
30
35
40 (protection range
46 (protection range
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
DB – Dry Bulb Temp., (
ID – Indoor
OD – Outdoor
5.2.2 Capacity Correction Factors
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
20
SM DUO38 1-E.1 GB
ID COIL ENTERING AIR DB/WB TEMPERATURE [0C]
DATA 22/15
TC
SC
PI
TC 2.09
SC 1.64
PI 0.43
TC 1.90
SC 1.56
PI 0.48
TC 1.71
SC 1.47
PI 0.53
TC
SC
PI
TC
SC
PI
o C)
o C)
Cooling Capacity Ratio Vs. Outdoor Temperature
25 30
Outdoor Temperature [deg C]
CONTENT
24/17 27/19
80 - 110 % of nominal
80 - 105 % of nominal
25 - 50 % of nominal
2.21 2.34
1.68 1.72
0.44 0.45
2.02 2.14
1.59 1.63
0.50
0.49
1.83
1.95
1.51 1.55
0.55
0.54
80%-92% of nominal
80%-92% of nominal
80%-100% of nominal
70%-85% of nominal
70%-85% of nominal
90%-100% of nominal
35 40 45
PERFORMANCE DATA
29/21 32/23
2.46 2.58
1.76 1.80
0.46 0.47
2.27 2.39
1.67 1.71
0.51 0.52
2.07 2.19
1.59 1.63
0.56 0.57
5-3