LG MULTI V 5 Manual Book page 110
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Also See for MULTI V 5:
- Service manual (236 pages) ,
- Data manual (162 pages) ,
- Engineering manual (105 pages)
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4.5 ODU Addressing
It is the outdoor unit address setting function for outdoor unit when central controller is installed.
■ Setting the function
Function
ODU Addressing
■ Option Selection
Setting
0
Default (Not Install a central controller)
1 ~ 254
■ Detailed information
• This function is used with heat pump and heat recovery.
· Ask an authorized technician to setting a function.
· If use a function, first install a central controller.
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_TROUBLE SHOOTING GUIDE BOOK
Option
Fn 5
0 ~ 254
Detail of function
Number of outdoor unit
4.6 Snow Removal & Rapid Defrost
It is a function to prevent accumulation of snow in the snowy area or to judgment the fast defrost in the
humid area.
■ Setting the function
Function
Snow Removal & Rapid Defrost
■ Option Selection
Setting
Mode
oFF
Not setting
op1
Snow removal
op2
Rapid defrost
op3
Snow removal & Rapid defrost
■ Detailed information
1. Snow Removal
• A function to prevent the snow from accumulating and blocking the flow path during the outdoor
unit non-operation.
(set in areas of the country where snow may accumulates on the top of the unit)
• Outside temperature 3 degrees or less, 2 minutes every 30 minutes outdoor fan operation while
non-operation.
2. Rapid Defrost
• This is optional logic that limits the severity of frost accumulation on the outdoor unit coil between
defrost cycles. it calls for more frequent defrost cycles.
• Rapid defrost start condition.
Conditions
Tout ＜ 0℃
ΔTt ＞ 9℃
0℃ ＜ Tout ＜ -15℃
ΔTt ＞ 10℃
Tout ≤ -15℃
-
Tout ＜ 5℃
RH ＞ 85%
· Ask an authorized technician to setting a function.
· If do not use a function, set an off-mode.
Option
Fn 6
oFF, op1~op3
Fan speed during snow removal (RPM)
UXA
UXB
-
-
670
850
-
-
670
850
Tt ＜ -15&&operating time ＞ 90min
T indoor, pipe in(avg) ＜ 40℃
operating time ＞ 120min
operating time ＞ 180min
* ΔTt : Outdoor Temp. - Heat Exchanger Temp.
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