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PRDCAM
AHU Communication Kit Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
AHU COMMUNICATIONS KIT INSTALLATION
Main Module Settings
UI7 (Analog Input)
–
ODU Capacity Control #1
–
continued
3 System
4 System
Note:
1. ODU Capacity ratios in the table above are not exact.
2. Evaporative temperature / Condenser temperature may vary depending on system operating frequency,
pressure option setting, and piping installation conditions.
3. Evaporator temperature is based on target low pressure of compressor. Actual temperature at evaporator
may varies by pressure drop. Please contact local sale person to design AHU heat exchanger.
Voltage
[V]
Total
Capacity
ratio [%]
Each ODU’s capacity ratio [%]
ODU
Master#1
ODU
Master#2
ODU
Master#3
ODU
Master#4
<2.0
0.0
Operation Off
2.0
20.0
40
0
40
0
2.5
22.5
50
0
40
0
3.0
25.0
60
0
40
0
3.5
27.5
70
0
40
0
4.0
40.0
40
40
40
40
4.5
47.5
40
50
50
50
5.0
50.0
50
50
50
50
5.5
57.5
50
60
60
60
6.0
60.0
60
60
60
60
6.5
67.5
60
70
70
70
7.0
70.0
70
70
70
70
7.5
77.5
70
80
80
80
8.0
80.0
80
80
80
80
8.5
87.5
80
90
90
90
9.0
90.0
90
90
90
90
9.5
97.5
90
100
100
100
10.0
100.0
100
100
100
100
Voltage
[V]
Total
Capacity
ratio [%]
EachODU’scapacityratio[%]
ODU
Master#1
ODU
Master#2
ODU
Master#3
<2.0
0.0
Operation Off
2.0
26.7
40
0
40
2.5
30.0
50
0
40
3.0
33.3
60
0
40
3.5
36.7
70
0
40
4.0
40.0
40
40
40
4.5
46.7
40
50
50
5.0
50.0
50
50
50
5.5
56.7
50
60
60
6.0
60.0
60
60
60
6.5
66.7
60
70
70
7.0
70.0
70
70
70
7.5
76.7
70
80
80
8.0
80.0
80
80
80
8.5
86.7
80
90
90
9.0
90.0
90
90
90
9.5
96.7
90
100
100
10.0
100.0
100
100
100
