Service manual

5-2
PERFORMANCE DATA & PRESSURE CURVES
SM DNGDCI 2-E.1 GB
5.1.3 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 3.82 3.55 3.29
PI 0.96 1.06 1.16
-10/-12
TC 4.25 3.98 3.72
PI 1.16 1.26 1.35
-7/-8
TC 4.58 4.31 4.04
PI 1.31 1.40 1.50
-1/-2
TC 4.74 4.47 4.20
PI 1.38 1.48 1.57
2/1
TC 4.85 4.58 4.31
PI 1.43 1.53 1.62
7/6
TC 6.27 6.00 5.73
PI 1.50 1.60 1.70
10/9
TC 6.61 6.35 6.08
PI 1.59 1.69 1.79
15/12
TC 6.96 6.69 6.42
PI 1.68 1.78 1.88
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
5.1.4 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