Electra WNG 9 - Page 76

5-30
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-03 Service Manual - WNG
5.22.2 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 3.78 1.86 3.64 1.99 3.49 2.09
-7 4.07 1.91 3.92 2.02 3.78 2.12
-2 4.32 1.93 4.18 2.05 4.03 2.17
2 5.26 2.03
5.04 2.16
4.82 2.28
6 7.42 2.18 7.20 2.33 6.95 2.47
10 8.06 2.30
7.85 2.46
7.63 2.63
15 8.71 2.40 8.50 2.59 8.28 2.75
20 9.18 2.47 8.96 2.68 8.71 2.89
* 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
5.23 Capacity Correction Factor Due to Tubing Length
5.23.1 Cooling
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.988 0.975 --- --- ---
* Minimum recommended tubing length between indoor and outdoor units is 3m.
5.23.2 Heating
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.03
1
0.974 0.965 --- --- ---
* Minimum recommended tubing length between indoor and outdoor units is 3m.