Transcript PowerPoint 프레젠테이션

Perfect solution for large
and high rise buildings


is technically advanced with maximized
cooling load, high efficiency
and very economical system.
was developed to focus large buildings and
high rise buildings.
Large capacity models(20HP~40HP)
Longest pipe length is 120m
Total maximum pipe length is 220m
Development Plan – Outdoor unit (R22, 50/60Hz)
Combination Unit
C/O
Main
5~16
Sub
8~12
No. of O/door unit
H/P
Capacity(HP)
Capa.
(HP)
Main
5~16
Sub
8~12
No. of O/door unit
5
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
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Development Plan – Indoor unit (R22, 50/60Hz)
Type
Image
7k
2.1 kW
SR
9k
2.6 kW
SR
12k
3.5 kW
SR
SU
SU
SU
SP
SP
18k
5.3 kW
ST
21K
6.2kW
24k
7.0 kW
28k
8.2 kW
36k
10.6 kW
38k
11.1 kW
42k
12.3 kW
48k
14.1 kW
TE
TD
TD
TD
TD
TD
TD
TD
BH
BH
BH
BG
BG
BG
BG
BE
General
Mirror
Art Cool
SV
Art Cool
Wide
TC
TC
SV
TC
1 Way
TE
4 Way
High
Static
BT
BT
BT
Low Static
CD
Exposed
Under-ceiling
1군
2군
3군
' 04.04.15
' 04.07.31
' 04.09.30
CD
High efficiency & Low noise inverter scroll compressor
Inverter scroll compressor is totally
designed and developed by LG
More powerful and dynamic multi power system*
Single pipe system (1 pair of pipe from outdoor unit)
Widest line up(8HP~40Hp)
*Multi power system : Consist of 1 inverter compressor and
other constant speed compressors.
Highly efficient Linear control
High efficiency
(Linear)
Const.
Speed
Comp.3
System
Capacity(%)
System
Capacity(%)
Low efficiency
(non-linear)
Const.
Speed
Comp.1
Indoor cooling/heating
load(%)
Variable capacity output by
“Bypass system”
Const.
Speed
Comp.2
Const.
Speed
Comp.2
Const.
Speed
Comp.1
Const.
Speed
Comp.1
Indoor cooling/heating
load(%)
Variable capacity
“Bypass system”
Multi V plus
 Low efficiency at low load
conditions
High efficiency at low load
conditions
Small steps load variation is
difficult to control
Small steps load variation by
precise linear control of inverter
compressor
 For over load conditions (100%↑),
additional compressor is required.
So power consumption increases
4~6kW. In heating mode, additional
heater required(4~6kW)
All load conditions control by
variable frequency(30Hz~120Hz).
Thus minimizing number of
compressors required.
High Energy Saving Levels
Item
Unit
-10℃ Model
By Pass
-15℃ Model
Daikin
Cooling Standard
Standard
Heating
Capacity
Cooling
Power Heating
Consuption
COP
Cooling
Heating
 Compared to competitors our products have high COP
and EER.
Saving
Installation Space
Sleeve size
Sleeve size
Conventional
4 Unit
2 Unit
 Compared to competitors our products have high COP
and EER.
 In 40HP case floor area comparison between 10hp and
20 hp models (21% space saving)
Area
Area 7.1m2
9.03m2
Conventional
 Through the wall sleeve pipe diameter area
(50% area saving)
Sleeve size
Total outdoor unit capacity: 40HP
(LRP-N2900A 4 units)
Sleeve size
Total outdoor unit capacity : 40HP
(LRP-N5800B 2 units)
Flexible pipe installation in 3 directions
Various installation case according to outdoor unit
location
Moving and handling of “conventional” unit
- Cost is high
- Possibility of drop while using cranes
Moving and handling of “Multi-V plus” unit
- Outdoor unit size is compact
- Easy to handle through fork lift slot
Longest pipe, highest
altitude technology
40HP
Subcooling circuit technology adapting
Double tube heat exchanger(LG patent)
Altitude
Outdoor
unit
Expansion
valve
Double tube
HEX
Liquid refrigerant
2 phase
refrigerant
Longest pipe
Indoor
unit
Spiral tube
Improved heating and cooling
After Reliability test, installation
capacity due to advance
possible up to 120m long pipe,
subcooling circuit
50m altitude
improved heating and cooling capacity
due to advance subcooling circuit
Outdoor
unit
Indoor
unit
Expansion
valve
Double tube
HEX
Outdoor
unit
Indoor
unit
Liquid refrigerant
2 phase
refrigerant
Spiral tube
Conventional
 Subcooling control is unstable
 Pressure drop is large if use
long piping
 Refrigerant amount is unstable
 Indoor unit capacity drops
New Subcooling Circuit
 Subcooling control is stable
 Pressure drop is minimum even in
long piping : keeping total capacity
 Proper amount of liquid refrigerant
can be t to indoor unit
 Prevent indoor unit capacity drop.
 Reduce total refrigerant amount
(LG 100%, Daikin 112%, Mitsubishi 118%)
Wide range of
running conditions
Cooling range
competitors
Heating range
competitors
Alternate compressor cycling / Back-up function
1) Normal running conditions
Inverter
Const.
speed
Const.
speed
Const.
speed
 Multi compressor system with longer life cycle of each
compressor due to alternate working
Alternate compressor cycling / back-up function
2) Compressor failure situation
Inverter
Const.
speed
Const.
speed
 Alternative compressor is still running
Const.
speed
High Safety Measures
Heat exchanger
Safety cover
Control and mechanical parts are perfectly sealed
Separated equipments space (compressor,control box)
and heat exchanger space
Resistant to dust, rain, corrosion and other
environment factors
Low noise outdoor unit
Less
4~5dB
Rear
Side
Front
Outdoor fan motor has step
control
Noise transfer from compressor
to HEX
Rear
Side
Front
Outdoor fan motor has
inverter control
Low noise due to separated parts
and prevented by safety cover
Convenient maintenance | Swing Type Door
 Smart aesthetics after installation
 Convenient maintenance due to swing type door design
Intelligent Fuzzy Control System
Target
Fuzzy control
PID control
Time
 In start up, fuzzy control senses ambient & room temperature
and achieve target in shortest time as per the load condition.
Stabilize indoor air temperature to optimum level.
High capability & Reliability of the unit is assured by preventing
overshooting and making use of all control system accurately.
In heating mode, keeping the indoor unit capacity down to the
–10℃ of outdoor temperature.
Installation (Dong Moon High school)
 Outdoor unit : 20HP x 13set, 10HP x 13set
 Indoor unit : 4 way x 74EA, 1 way x 4EA
Outdoor Unit
1 Way
Cst
4 Way
Cst
4 Way
Cst
■ Schematics of
20HP Cycle
Air temp.
sensor
Pressure sensor
Check valve
Thermister
Pressure switch
LEV
Solenoid valve
Service valve
High pressure sensor
HEX thermostat
of outdoor unit
Reversing
Valve
H/G
Low
Pressure
sensor
Suction
Temp sensor
O/S
Compressor
Discharge
Temp.
sensor
O/S
Inv
Comp
Accum
정속
Comp
Main Outdoor LEV
Liq. Inj
Gas
pipe
Drier
Outlet temp
Sensor of
Subcooling circuit
sensor
inlet temp
Sensor of
Subcooling circuit
sensor
SC LEV
Liquid
pipe
Liquid
Temp. sensor
Thank You
Enjoy Fresh & Cool Life…
with LG!!