Fan Low Sound In Heating (Se11); Number Of Partial Defrosts (Se12) - LG Multi V5 Service Manual

Fan Low Sound in Heating (SE11)

The Fan Low Sound in Heating mode reduces outdoor unit fan
speed when the system is in heating and the system has a light load.
Use when the outdoor units are installed in sound-sensitive area.
The mode operates only when:
• Outdoor unit coil temperature is >38°F.
• Air temperature is <41°F.
• Heating load is <30% of total indoor unit capacity.
• Refrigerant heating effect is reduced, however, is not needed.
• Refrigerant flow sound (if any is present) is reduced through active-
ly heating indoor units.
For use on both heat pump and heat recovery systems.
Table 47: Setting the Fan Low Sound in Heating Function.
Settings
oFF (Default) Fan Low Sound in Heating is Not Enabled.
on Fan Low Sound in Heating is Enabled.

Number of Partial Defrosts (SE12)

Sets the number of split-coil (or split-frame on multi-frame systems) defrost cycles occurring between the full-frame defrost cycles. Use the
function in areas where the winter temperatures are mild (above freezing), only light frost or ice occurs, or if the building has significant air
leaks and the system might need to operate in heating as much as possible.
• Selections range from one (1) to eleven (11)
• In areas where winter weather is milder, select a higher value.
SE12 function settings are ignored if Fn4 - (Overall) Defrost and / or Fn22 - Overall Defrost Operating in Low Temperatures is / are selected.
For use on both heat pump and heat recovery systems.
Table 46: Setting the Number of Partial Defrosts Function.
Settings
oFF (Default)
oP1
oP2
oP3
oP4
oP5
oP6
oP7
oP8
oP9
oP10
oP11
Function
Partial Defrosts Cycles
Function not set; 2 is factory set
1
2
3
4
5
6
7
8
9
10
11
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.
OTHER CONTROLS
Figure 37: Setting the Fan Low Sound in Heating Function.
Turn No. 5 on the master outdoor unit PCB
DIP switch bank SW01 to ON.
Press the SW01D Reset Button one (1) time to reset PCB. The Fan
Low Sound in Heating is set.
Figure 36: Setting the Number of Partial Defrosts Function.
Turn No. 5 on the master outdoor unit PCB
DIP switch bank SW01 to ON.
Select from "oP1" through "oP11" (see table) by using the SW03C
The Number of Partial Defrosts function begins. No outdoor unit PCB
reset or power cycle required.
Setting Optional Modes
85