Service manual
Table Of Contents
- DNG DC Inverter Series
- LIST OF EFFECTIVE PAGES
- TABLE OF CONTENTS
- INTRODUCTION
- PRODUCT DATA SHEET
- RATING CONDITIONS
- OUTLINE DIMENSIONS
- PERFORMANCE DATA & PRESSURE CURVES
- AIRFLOW CURVES
- SOUND LEVEL CHARACTERISTICS
- ELECTRICAL DATA
- WIRING DIAGRAMS
- REFRIGERATION DIAGRAMS
- TUBING CONNECTIONS
- CONTROL SYSTEM
- TROUBLESHOOTING
- EXPLODED VIEWS AND SPARE PARTS LISTS
- APPENDIX A
5-16
PERFORMANCE DATA & PRESSURE CURVES
SM DNGDCI 2-E.1 GB
5.4 DNG 80 DCI
5.4.1 Cooling Capacity (kW)
ID COIL ENTERING AIR DB/WB TEMPERATURE [C
0
]
OD COIL
ENTERING AIR DB
TEMPERATURE [C
0
]
DATA 22/15 24/17 27/19 29/21 32/23
-10 - 20
(protection range)
TC 80 - 110 % of nominal
SC 80 - 105 % of nominal
PI 25 - 50 % of nominal
25
TC 7.25 7.72 8.20 8.67 9.15
SC 6.01 6.13 6.25 6.38 6.50
PI 1.95 1.99 2.02 2.06 2.10
30
TC 6.90 7.37 7.85 8.32 8.80
SC 5.86 5.98 6.10 6.22 6.35
PI 2.18 2.21 2.25 2.29 2.33
35
TC 6.55 7.03 7.50 7.97 8.45
SC 5.70 5.83 5.95 6.07 6.20
PI 2.41 2.44 2.48 2.52 2.55
40
TC 6.20 6.68 7.15 7.63 8.10
SC 5.55 5.68 5.80 5.92 6.04
PI 2.63 2.67 2.71 2.75 2.78
46
TC 5.78 6.26 6.73 7.21 7.68
SC 5.37 5.49 5.62 5.74 5.86
PI 2.91 2.94 2.98 3.02 3.06
LEGEND
TC – Total Cooling Capacity, kW
SC – Sensible Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C)
ID – Indoor
OD – Outdoor
5.4.2 Capacity Correction Factors (Cooling)
Cooling Capacity Ratio Vs. Outdoor Temperature
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ratio
CONTENT