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F
MULTI
F
MULTI
MAX
Wiring Error Check
Use to verify if wiring is properly installed.
1. Shut power down to the system.
2. Set DIP Switch 2 to ON.
3. Turn power on to the system.
4. Check if the Red and Green LEDs on the outdoor unit PCB are ON
(indicate indoor units are in forced operation mode).
5. If the wiring is correctly installed, the Green LED will light up. If the wiring is in-
correctly installed, the Red and Green LEDs will blink, indicating which part of the
system is in error.
• Red LED = Piping Number
• Green LED = Wiring Number (Room)
Example: If the Red LED blinks twice and the Green LED blinks three times, the second
piping to the third room is in error (see at right).
•
Error Check cannot operate correctly.
• Only the part of the system in error will be displayed. System will operate correctly
after the error is fixed.
•
• Turn DIP Switch 2 to OFF after finishing (Normal Operation setting).
• Only the first four DIP switches are used to set settings and functions.
Reducing Power Consumption
Enables more efficient system operation by reducing the maximum power consumption
value (reducing the MCA).
1. Shut power down to the system.
2. For Step 1, set only DIP Switch 3 to ON.
3. For Step 2, set only DIP Switch 4 to ON.
4. Turn power on to the system.
Table 39: Reducing Power Consumption Current Levels.
Phase
Multi F
Model
LMU183HV,
LMU243HV
Step 1 (A)
9
Step 2 (A)
8
Figure 120: LMU183-243-303-363HV Reducing Power Consumption
DIP Switch Settings.
Step 1
ON
OFF
1
2
3
4
5
1
2
3
4
5
FINAL INSTALLATION PROCEDURES
1Ø
Multi F MAX
Multi F
LMU481HV,
LMU303HV,
LMU541HV,
LMU363HV
LMU601HV
13
22
11
21
Step 2
ON
OFF
5
1
2
3
4
1
2
3
4
5
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.
Figure 116: LMU183-243-303-
363HV Wiring Error Check DIP
Switch Setting.
ON
OFF
1
2
3
4
5
1
2
3
4
5
Figure 118: Wiring Error Check Example.
LED 1
(Red)
LED 2
(Green)
Figure 119: Reducing Power Consumption Chart.
Power
Consumption
and Current
• Reduced Power Consumption reduces outdoor unit capacity.
•
Figure 121: LMU481-541-601HV Reducing Power Consumption DIP
Switch Settings.
Step 1
ON
OFF
1
2
3
4
5
6
Figure 117: LMU481-541-601HV
Wiring Error Check DIP Switch
Setting.
ON
OFF
1
2
3
4
5
Three (3)
Two (2)
Blinks
Blinks
One (1)
One (1)
Second
Second
Two (2)
Three (3)
Blinks
Blinks
One (1)
Second
Normal
Step 2
ON
OFF
1
2
3
4
5
6
One (1)
Second
Time
6
87
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