Electra DELTA 18ST - DELTA24;OU7 Series Heating Performance

5-10
PERFORMANCE DATA & PRESSURE CURVES
SM DELTA 1-E.0 GB
5.7.2 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 3.72 1.88 3.58 2.00 3.43 2.10
-7 4.00 1.93 3.86 2.03 3.72 2.14
-2 4.25 1.95 4.11 2.07 3.96 2.19
2 5.17 2.04
4.96 2.17
4.74 2.30
6 7.29 2.20 7.08 2.35 6.83 2.50
10 7.93 2.32
7.72 2.48
7.50 2.65
15 8.57 2.42 8.35 2.61 8.14 2.77
20 9.03 2.49 8.81 2.70 8.57 2.91
*
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
5.8 Capacity Correction Factor Due to Tubing Length
5.8.1 Cooling
TOTAL TUBING LENGTH
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.01
1
0.980 0.970 0.960 --- --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.
5.8.2 Heating
TOTAL TUBING LENGTH
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.990 0.990 0.980 --- --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.