5-6
PERFORMANCE DATA & PRESSURE CURVES
Revision Y05-01 Service Manual - DNG Series
5.4.2 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
5.5 Capacity Correction Factor Due to Tubing Length
5.5.1 Cooling
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.01
1
0.98 0.97 0.96 0.95 0.94 0.93 0.9
* Minimum recommended tubing length between indoor and outdoor units is 3m.
5.5.2 Heating
TOTAL TUBING LENGTH (One Way)
3m
7.5m
10m 15m 20m 25m 30m 40m 50m
1.02
1
0.99 0.99 0.98 0.97 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 4.04 1.84 3.89 1.96 3.73 2.06
-7 4.35 1.89 4.20 1.99 4.04 2.10
-2 4.62 1.91 4.47 2.02 4.31 2.14
2 5.62 2.00 5.39 2.13 5.16 2.25
67.212.15
7.00 2.30
6.76 2.44
10 7.84 2.27 7.63 2.43 7.42 2.59
15 8.47 2.37 8.26 2.55 8.05 2.71
20 8.93 2.44 8.72 2.65 8.47 2.85
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