Electra DELTA 18ST - DELTA18 GC18 R410 A Heating Performance; Capacity Correction Factors by Tubing Length

5-2
PERFORMANCE DATA & PRESSURE CURVES
SM DELTA 1-E.0 GB
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 2.84 1.25 2.73 1.33 2.62 1.40
-7 3.05 1.28 2.94 1.35 2.84 1.42
-2 3.24 1.29 3.13 1.37 3.02 1.45
2 3.94 1.36
3.78 1.44
3.62 1.53
6 5.56 1.46 5.40 1.56 5.21 1.66
10 6.05 1.54
5.89 1.65
5.72 1.76
15 6.53 1.61 6.37 1.73 6.21 1.84
20 6.89 1.65 6.72 1.79 6.53 1.93
*
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
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.99 0.975 0.965 0.950 --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.
5.2.2 Heating
TOTAL TUBING LENGTH
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.05
1
1 0.993 0.988 0.978 --- --- ---
*
Minimum recommended tubing length between indoor and outdoor units is 3m.