Electra WNG 9 - Page 84

5-38
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-03 Service Manual - WNG
5.28.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR DB ID COIL ( °C)
15 20 25
ENTERING AIR WB
OU COIL (°C)
TH PI TH PI TH PI
-10 4.77 2.38 4.59 2.54 4.40 2.67
-7 5.13 2.44 4.95 2.58 4.77 2.72
-2 5.45 2.47 5.27 2.62 5.08 2.77
2 6.63 2.59
6.36 2.76
6.08 2.92
6 9.35 2.79 9.08 2.98 8.76 3.16
10 10.17 2.94
9.90 3.14
9.62 3.36
15 10.99 3.07 10.71 3.31 10.44 3.52
20 11.58 3.16 11.30 3.43 10.99 3.70
* the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C)
ID – Indoor
OU – Outdoor
5.29 Capacity Correction Factor Due to Tubing Length
5.29.1 Cooling
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.12
1
0.979 0.943 0.940 0.931 0.913 --- ---
* Minimum recommended tubing length between indoor and outdoor units is 3m.
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.01
1
0.987 0.969 0.952 0.935 0.927 --- ---
* Minimum recommended tubing length between indoor and outdoor units is 3m.