Service manual

5-12
PERFORMANCE DATA & PRESSURE CURVES
SM DNGDCI 2-E.1 GB
5.3.3 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 4.84 4.50 4.16
PI 1.25 1.38 1.50
-10/-12
TC 5.38 5.05 4.71
PI 1.50 1.63 1.76
-7/-8
TC 5.80 5.46 5.12
PI 1.70 1.82 1.95
-1/-2
TC 6.00 5.66 5.32
PI 1.79 1.92 2.05
2/1
TC 6.14 5.80 5.46
PI 1.86 1.98 2.11
7/6
TC 7.94 7.60 7.26
PI 1.95 2.08 2.21
10/9
TC 8.38 8.04 7.70
PI 2.07 2.20 2.32
15/12
TC 8.81 8.48 8.14
PI 2.19 2.31 2.44
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
5.3.4 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