Airwell ONG 12, Technical Manual

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5-2
PERFORMANCE DATA & PRESSURE CURVES
Revision
0
5.1.2 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 1.20 0.54 1.15 0.57 1.11 0.60
-7 1.29 0.55 1.24 0.58 1.20 0.61
-2 1.37 0.56 1.32 0.59 1.28 0.62
2 1.66 0.58 1.60 0.62 1.53 0.66
6 2.35 0.63 2.28 0.67 2.20 0.71
10 2.55 0.66 2.49 0.71 2.42 0.76
15 2.76 0.69 2.69 0.74 2.62 0.79
20 2.91 0.71 2.84 0.77 2.76 0.83
*
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
5.2 Capacity Correction Factor Due to Tubing Length
5.2.1 Cooling
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02 1 0.961 0.949 --- --- --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.
5.2.2 Heating
TOTAL TUBING LENGTH (One Way)
3m 7.5m 10m 15m 20m 25m 30m 40m 50m
1.05
1
0.975 0.965 --- --- --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.