Service manual

5-7
PERFORMANCE DATA & PRESSURE CURVES
SM DNGDCI 2-E.1 GB
5.2.3 Heating
ID COIL ENTERING AIR DB TEMPERATURE [C
0
]
OD COIL ENTERING
AIR DB/WB
TEMPERATURE [C
0
]
DATA 15 20 25
-15/-16
TC 4.20 3.91 3.61
PI 1.08 1.19 1.30
-10/-12
TC 4.68 4.38 4.09
PI 1.30 1.41 1.52
-7/-8
TC 5.03 4.74 4.45
PI 1.47 1.58 1.69
-1/-2
TC 5.21 4.92 4.62
PI 1.55 1.66 1.77
2/1
TC 5.33 5.04 4.74
PI 1.61 1.72 1.83
7/6
TC 6.89 6.60 6.31
PI 1.69 1.80 1.91
10/9
TC 7.27 6.98 6.69
PI 1.79 1.90 2.01
15/12
TC 7.65 7.36 7.07
PI 1.89 2.00 2.11
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
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
5.2.4 Capacity Correction Factors (Heating)
Heating Capacity Ratio Vs. Outdoor Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capacity Ration
CONTENT