Electra DELTA 18ST - DELTA21 GC21 R410 A Heating Performance

5-6
PERFORMANCE DATA & PRESSURE CURVES
SM DELTA 1-E.0 GB
5.4.2 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
3.41 1.60 3.28 1.70 3.15 1.79
-7 3.67 1.64 3.54 1.73 3.41 1.82
-2 3.90 1.66 3.77 1.76 3.64 1.86
2 4.75 1.74
4.55 1.85
4.36 1.96
6 6.70 1.87 6.50 2.00 6.27 2.12
10 7.28 1.97
7.09 2.11
6.89 2.26
15 7.87 2.06 7.67 2.22 7.48 2.36
20 8.29 2.12 8.09 2.30 7.87 2.48
*
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
5.5 Capacity Correction Factor Due to Tubing Length
5.5.1 Cooling
TOTAL TUBING LENGTH
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.961 0.950 --- --- --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.
5.5.2 Heating
TOTAL TUBING LENGTH
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.04
1
0.975 0.961 --- --- --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.