LG ABNH186HLAB, Service Manual

Page: 71 / 183

Service Manual 71
MPS Inverter SINGLE A
• MPS Inverter systems use high COP DC Compressor that take charge of about 50% of
total capacity and high COP constant speed compressors.
- Minimum operation ( About 12~50% load operation )
: High COP DC Compressor covers 12~50% load, COP of system is higher than DC Inverter only system.
- Standard operation ( About 50~90% load operation )
: High COP DC Compressor covers about 10~40% load and constant speed compressor covers 50% load,
COP of system less inferior or equivalent to DC Inverter only system.
- Maximum operation ( About 90~130% load operation )
: COP of DC Inverter compressor goes down according to frequency . In case of MPS system, DC Inverter
compressor rotates between high COP frequency and constant speed compressor covers rest load. COP
of system is higher than DC Inverter Single system.
→
Seasonal EER of DC Inv MPS is the best.
Heating Capacity Improved
• Using TPS technology, LG multi system
achieved world's best wide range of operation
which is from 12%~120% in cooling mode and
from 12%~138% in heating mode to give quicker
cooling and heating.
• Compared cooling capacity
- Standard heating capacity 120%
- Max heating capacity 138%
Energy Saving Gold Fin
- Outdoor Heat Exchanger fins are coated with anti-
corrosive & hydrophilic layers. It prevents the corro-
sion of heat exchanger. Fins remain as new even
after long time of operation and maintain efficiency
of heat exchanger constant. It also saves power &
maintenance Cost
I + II
I
Operatig
Range
24k/30k/36k Grade
18k grade
Compressor
Application
+
Inverter only
Inverter
+Constant
Inverter
+Constant
+Constant
I + II + III
48k/60k Grade
+
I II
Load
Inverter
compressor
operation
Inverter
compressor
operation
Inverter
compressor
operation
small large
Constant
Compressor
operation
Constant
Compressor
operation
Constant
Compressor
operation
III
+ +
(
❇
18k means 18,000 Btu/h)
Capacity Control
Heating
Cooling
Before Now Befor Now
100%
112%
120%~115%
124%
138%~133%
110%
120%
STD Max
100% 100%
Uncoated Aluminum Gold fin
10mm 10mm 10mm 10mm
Salt Spray Test Result : After 360 hours
[ Test Standard: ASTM B-117, KS D 9502 ]
Pitting Corrosion