Electra DNG 18 - Page 35

5-16
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-01 Service Manual - DNG Series
5.12.2 Heating
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C)
ID – Indoor
OD – Outdoor
5.13 Capacity Correction Factor Due to Tubing Length
5.13.1 Cooling
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.99 0.98 0.98 0.97 0.96 0.95 0.92
* Minimum recommended tubing length between indoor and outdoor units is 3m.
5.13.2 Heating
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.03
1
0.99 0.99 0.98 0.98 0.97 0.96 0.95
* Minimum recommended tubing length between indoor and outdoor units is 3m.
ENTERING AIR DB ID COIL(
O
c)
15 20 25
ENTERING WB
OD COIL(
o
C)
TH Pl TH Pl TH Pl
-10 6.41 2.86 6.17 3.05 5.92 3.20
-7 6.90 2.94 6.65 3.10 6.41 3.26
-2 7.33 2.97 7.08 3.15 6.84 3.33
2 8.91 3.11 8.55 3.31 8.18 3.51
6 11.43 3.35
11.10 3.58
10.71 3.80
10 12.43 3.53 12.10 3.78 11.77 4.04
15 13.43 3.69 13.10 3.97 12.77 4.22
20 14.15 3.79 13.82 4.12 13.43 4.44
CONTENT