LG LM50 2004-E1 Operation manual

LM50 2004-E1
MPS Variable Multi Split SYSTEM
Free Joint, 50Hz, R410A

2004 Product Data 1
General Description
Thank you very much for your special patronage of LG air-conditioners.
A high-grade, high-quality, advanced individual air-conditioning system that is able to respond to expanding,
more sophisticated housing environment needs.
LG Electronics Inc., which has been a top air conditioner maker for the three consecutive years, has developed
"MPS(Multi Power System) Variable Multi Split" system that can efficiently control air-conditioning in a better
way. Unlike traditional multi-type units, "MPS Variable Multi Split" is a next-generation multi type air-condition-
er designed to be installed under any circumstance.
MPS control provides comfortable and convenient environment as small capacity compressor is operating con-
tinuously compared to conventional ON/OFF cycle compressor. A number of indoor units can be linked to an
outdoor units so that each room can be individually air-conditioned.
This can be easily installed in a small space area, and is energy saving since the cooling of each room individu-
ally controlled.
A lot of information regarding the design and the installation of "MPS Variable Multi Split" system is included in
this publication. We hope that with this information you would become an expert of the "MPS Variable Multi
Split" system and be more comprehensive to the system.
LG Electronics Inc.
Air Conditioning Division

2MPS Variable Multi Split System(50Hz, R410A)

2004 Product Data 3
LG Airconditioners Product Data
TABLE OF CONTENTS
Table of contents Page
Part 1 Features...............................................................................................7
Part 2 MPS Variable Multi-Split system (R410A).......................................11

4MPS Variable Multi Split System(50Hz, R410A)

2004 Product Data 5
Part 1
Features

6MPS Variable Multi Split System(50Hz, R410A)
Features & Benefit
MPS(Multi Power System) Variable Control : (Except A2UC146FA0,A2UH146FA0)
Big Energy Saving with MPS Variable Control
• Basic Principle of MPS Variable Control
MPS control provides comfortable and convenient environment as there are two compressors with 60&40%
load sharing with on compressor of small capacity always working to maintain the set temperature conditions &
meanwhile other compressor is at rest if the load is low whereas in conventional system the only compressor is
working with ON/OFF cycles.
• Power Consumption Comparison
MPS Veriable Multi system opeates in one cycle with two compressors.
Only one compressor or two compressors run together, according to the load conditions.
With small load. only one compressor completes the cycle. It saves power consumption at low operation. This
concept is explained in the picture below.
Operating Ratio
100%
Cooling Capacity
Power Loss Zone
Cooling
Load
Operating Ratio
100%
Cooling Capacity
Saving Zone
40%
60%
100%
Cooling
Load
35%
Energy Saving
Max.
Conventional (On/Off Operation) MPS
*Condition of trial : ISO5115
100% 40% 60%
Conventional (On/Off Operation) MPS Control

2004 Product Data 7
Features & Benefit
90(Min)
0
100
200
300
400
500
(ppm)
6030
Nano Filter
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Normal Filter
Air Purifying System
- It not only removes microscopic contaminants & dust, but it
also removes house mites, pollen, and pet fur to help pre-
vent allergic diseases like asthma.It provides odor free, dust
free and allergy free air.
•Effect of carbon Nano Ball
Deodorizing efficieny: 8~10times compared to conventional
carbon filter.
•What is Carbon Nano Ball?
Nano(1/1 Bil) ball structure, (200~500nm) consisted of car-
bon, is adopted as deodorizing material first in the world.
Nasty smell
Deodorizing
Formaldehyde
Deodorizing
V.O.C.
Deodorizing
Composition of Triple Deodorizing Filter
¥Remove odor !
¥Restrain mildew !
¥Keep Performance ! (Durability)
¥Save time to clean up.
AfterBefore Effect
In 30 minutes "Auto-
Clean" makes the
inner part of Air
conditioner Dry
After Cooling
Operation, Start "Auto-
Clean" automatically
Triple Deodorizing Filter :
- Deodorizing efficiency
: 10% up compared to conventional Deodorizing Filter
Auto Cleaning System :
- Auto Clean helps to remove odor and save clean-up
time. After using air-conditioner, “Auto Clean” makes the
inner part of Air conditioner dry in 30 min. It removes
moisture and mould so you can enjoy odor-free air and
save time to clean up.

8MPS Variable Multi Split System(50Hz, R410A)
Features & Benefit
Vertical Temperature
Difference
Horizontal Temperature
Difference
Improved value of the 3-Dimensional Cooling
Time Reaching
Temperature
Thinnest Turbo Fan
129 mm
‘Fast & Even Widely’
Normal
‘Speedy & Powerful’
Jet Cool +
‘Indirectly & Softly’
Sleep Mode
Ultra-Slim design(Depth 129mm)
3-Dimensional Cooling System
New Cube 3-Dimension cooling system of ART COOL has Indirect
Cooling mode for sleep operation.
Being in sleep operation, cool air is discharged only right/left side!
Indirect cooling ensures you nice sleep.
Air Flow Control (ART COOL)
- In normal mode, 3 Dimensional air flow cools air more fast and even widely
- The bottom-ward air flow provides you with speedy and powerful cooling
- When you sleep, Side air flow provides indirect and soft cooling
Improved value of the 3-Dimensional Cooling
Vertical Temperature
Difference
Horizontal Temperature
Difference Time Reaching
Temperature

2004 Product Data 9
Features & Benefit
Environment Friendly Refrigerant :
- LG Air conditioners uses environment friendly refrigerant. Which don't do any harm to the environment.
Jet Cool:
- In this mode very quick and fast cooling is done. The unit will continue to supply high velocity air for 30 min-
utes, untill the room temperature reaches 18°C. After 30 minutes, unit will supply air at the set fan speed
whether indoor temperature has reached 18°C or not.
Self Diagnosis Function:
- This function provides diagnosis of the unit. Blinking of the operation LED of the indoor unit means there is
some error.
Cooling, Heating & Fan Operation:
- LG multi air conditioners can provide cooling, heating & fan operation. In the cooling mode, it cools the air with
an operation range of 18~30°C. In the heating mode, it heats the air with an operation range of 16~30°C. In
the fan operation mode, only indoor fan will run at the selected speed, outdoor fan and compressor will be off.
LCD Wireless Remocon:
- It provides ease of control.
Auto Restart Operation :
- When there is electricity failure the unit sharts off. After resumption of the power, unit will start in the same
mode as prior to the power failure. Memorized condition are on / off condition, operating mode (cooling/heat-
ing), set temperature and fan speed. The unit will memorize the above conditions and start with same memo-
rized condition.
Hot Start Function :
- During starting of the unit in the heating mode it prevents cold air blow from the unit.It starts the indoor fan only
after indoor unit pipe temperature reaches a preset value(28°C). When indoor unit pipe temperature has
reached 28°C, then for initial 1 minute the indoor fan runs at low speed and after that at the set fan speed.
Defrost / Deicing :
- In the heating mode, it prevents the ice formation on the outdoor unit. Sensing the outdoor piping temperature,
If it is lower than some preset value then the outdoor fan stops and compressor continues to run till a particular
temperature is reached. Thereby preventing the frost on the outdoor coil. After reaching a particular high tem-
perature outdoor fan again starts.
Time Delay Safety function:
-It delays restarting of the compressor by three minutes thereby preventing damage to the compressor .