110
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.
LG
Air-Cooled Heat Pump Inverter Scroll Chiller Installation and Owners Manual
TEST RUN
Night low noise function
This function judges the hottest day time during the cooling operation to reduce the fan noise of
the outdoor unit at night time with low cooling load by running the outdoor unit fan at low RPM.
* How to set maximum RPM
* RPM/Time setting
Cycle Main PCB DIP S/W No. 5 ON
Press the SW01D button until the Func is
displayed.
Continue to press the SW01C button until
the Fn3 is dis press SW01D button
1 time to set the step.
After maximum chiller temperature is de-
tected, it operates at 820 (Set) RPM after 8
hours (Standby time)
After running night low noise function, it is
automatically canceled after 9 hours
(Operation time)
When Fn3 is on, press the SW10C or
SW02C button until the applicable step is
displayed.
①
STEP 1-3Maximum RPM = 820
②
STEP 4-6Maximum RPM = 750
③
STEP 7-8Maximum RPM = 720
Refer to right table for standby time/operating
time by step
Start night low noise function
(When setting step 1)
Stop night low noise function
(When setting step 1)
Step Maximum
fan RPM
Standby
time (Hr)
Operation
time (Hr)
1
①
820
8
9
2
6.5
10.5
3
5
12
4
②
750
8
9
5
6.5
10.5
6
5
12
7
③
720
8
9
8
6.5
10.5
9
5
12
10
-
820
0
Continuous
operation
11
750
0
Continuous
operation
12
720
0
Continuous
operation
Note:
• Reset the main board of the cycle control box before running this function.
• Request the function setting to the installation expert after installing the chiller.
• If the function is not used, turn the DIP switch OFF and reset the power.
• If chiller RPM is changed, the cooling capacity may be reduced.
DIP-SW01
7-Segment
SW04C(X : cancel)
SW03C(► : forward)
SW02C(◄ : backward)
SW01C(
●
: confirm)
SW01D(reset)