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27˝ Front Loader (Columbus Combo). 16/June/2003 Washing Machine Division. Width. 24˝(600mm). ?( developing ). 27˝(686mm). Washing Capacity. 5kg. 6.5kg. 7kg. 8kg. 10kg. Drying Capacity. 2.5kg. 3kg. 3.5kg. 4kg. 5kg. Optimum Senseclean™ washing (Fuzzy Logic Control system). - PowerPoint PPT Presentation
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1
16/June/2003Washing Machine Division
27˝ Front Loader (Columbus Combo)
2Variety Capacity of Condensing Combo
WashingCapacity
DryingCapacity
5kg
2.5kg
6.5kg
3kg
7kg
3.5kg
8kg
4kg
10kg
5kg
WashingCapacity
DryingCapacity
5kg
2.5kg
6.5kg
3kg
7kg
3.5kg
8kg
4kg
10kg
5kg
Width 24˝(600mm) ?(developing) 27˝(686mm)
Optimum Senseclean™ washing(Fuzzy Logic Control system)
Quiet washingBiggest Wash&Dry Capacity
Foam Removal system(Suds-free)Water Circulation system
Direct Drive system
Brushless Motor system
Powerful RollerJets(w/ Washing-Ball)
Condensing Drying system
31. Design Look & Spec.
Design Look Spec.
Columbus Ⅱ
WM : Front loading Washer
36 : 1200 rpm, Combo
32 : Columbus Ⅱ(Wave Panel) H : Heater
W : White
CategoryModel NameColorWater HeaterWash/Rinse TemperatureCyclesDelay WashMax. Spin speedRollerJetsWater CirculationCabinet TopDoor TrimWindow Cover
ComboWM-3632HW
WhiteYES
6 options9
19 hours1200 RPM
YESYES
PorcelainSilverYES
41. Product Differentiation
Dry Heater(W)
Quietline
Water(ℓ)
*test condition : dry time-90min., dehydration-57%, load –8 lbs.
**efficiency : moisture / energy(kwh)
*Dry Performance(%)
Columbus Combo Equator
1200
90
15
70
21
75
28
650+650 1300
WD-3243RHD
74
28.5
Performance
**Energy Use(%) 60 49 5452
Dry Capacity
1200
Tub Material Plastic Stainless
Dry(ℓb)[ kg] 6[ 3.0] 6[ 3.0] 5[ 2.5]11 [ 5]
Stainless Stainless
5
LG recently adopt new advanced technology so called “Direct drive” system to its new washerand wash & dry combo unit . Without belt and belt pulley, motor itself is connected tothe drum tub. It results a great improvement in reducing noise and improving energy efficiency.
2. Direct Drive system
6
Not like conventional washer that using brush DC motor, LG washer use Brushless DC motor in it so that the durability, quietness and efficiency is greatly improved.
Brush
Rotor(Magnetized by current)
Stator(Magnetized by current)
Brush delivers electric signals to rotate the coiled rotor.
● Brush makes frictional sound. ● Coiled rotor needs electricity.● Brush abrades and needs replacement.
Rotor is a permanent magnet. Multi-coiled stator isbig and powerful enough to replace the pulley.
★ Powerful & Reliable control ★ Minimum vibration & noise ★ Optimum energy consumption
(brushless)(with brush)
Coil
Conventional Motor (Universal motor) LG’s New Motor (Direct Drive)
Rotor(permanent- magnet)
Stator(Magnetized by current)
Coil
Rotating Shaft
2. Brushless Motor system
7
Unique no brush and no beltDirect Drive Front Loader
• Low and• No Friction Noise• Stable Balancing System
Washing : 53dB , Spinning : 67 dB
2. Quiet Washing
Lowest Noise & Vibration Level
(*Sound Power Pressure)
Columbus DD system
Conventional system
75
18%
Low noises by removing brush and belt, Low vibration by more stable balancing system
Conventional Direct Drive
Low VibrationMore stable Balancing system by moving Motor to the center of system
Low NoisesQuiet and durable motor by removing Brush that makes unpleasant noises
8
To get the best washing performance, optimal time is determined by the water temperature,
the selected washing temperature, and the size of the load.
2. Optimum Senseclean™ washing
92. Control Process : Mechanical vs. Fuzzy Logic
Loaddetection
BalanceCheck Balancing
High Spinrpm
BalancingBalanceCheck
100
max
Feed-Back System
rpm
100
max
Too much Vibration
Fixed Spin Time
Not enough High Spin TimeNot reached Max Spin rpm.
Gap of actual Performance of Spin
Automatic control of the Spin Time
Spin at 70dB(normally)
Spin at 60dB
Mechanically controlled washers
LG Fuzzy Logic control
Low Spin Performance
8/28
102. Auto-Balancing Feed Back System
Sensor detects and makes clothes balanced so as to achieve lower noise level.
Large loadrpm
Small load
Time
ref
rpm
Loaddetection
Unbalancedetection Balancing
High Spin
Feed-Back System
112. Unbalance Sensing theory
rpm
* During spin cycle, if total amount of rpm changing (speed changing) is over the allowed level which is set in the Micom, the washing machine starts an untangling cycle. ( i.e, if the Micom decides that the load is out of balanced, the washing machine starts the untangling course.)* If the total amount of rpm changing ( Δspeed changing) is still incorrect after the untangling course has been carried out the required times, it displays the “ UE” error message.
100 rpm
50 rpm
1.Rinsing finish /Spinning start
2.Untangling
3.Period getting the eccentricity Data
Sensingperiod
4.Spinning start
12sec.5sec. 10sec. 5sec. 5sec.
O.K
122. Suds-Free System
Improve “wash/rinse” and “spin” performance by detecting and removing excessive suds in the drum
132. Suds sensing function
During Washing cycle
Suds sensing during washing cycle is done by water level change regardless of motor operation.
• If frequency is lower than 23.3KHz, the machine decides it as a suds problems.• In Perm press, Delicates, Wool/Silk, or Hand wash cycle, it does not work.
Sensing and removing Suds during Washing cycle
Washing Process
Lower than23.3KHz
Draining for 1minute
Breaking for 2minute
Fill in water for 1minute
Finish
3times
Total Required time : about 12minutes
142. Suds sensing function
During Spinning cycle
• The micom recognizes it as suds problem when: 1) the spinning speed does not reach 270rpm in 10 sec.2) the water pressure is lower than 24.0kHz during intermittent spin.3) the water pressure is lower than 24.4kHz during high speed spin.
• When suds is detected, spinning is stopped and the Suds remove program is started. And then the Water supplying and draining are proceeded until suds is not detected.
Sensing and removing Suds during Spin cycle
Spinning Process
Suds sensed
Fill in water for 1 minute
Breaking for 2minute
Drain for 2 minute
Finish
3times
15
RollerJets Circulation System
• It is Circulation Shower System that sprays water from the top down decreasing water, detergent and energy consumption while at the same time increasing washing power.
• The washing balls increase cleaning power by shooting out water this decreases laundry rubbing together and thus reduces damage to your laundry.
Hole Shower Fn.▶
(At peak point)
Ball Bearing Fn.▶
(Decrease rubbing)
Heavy Lifter ▶Powerfully lift a bulky laundry
Inside of the drum
Shower Connector
2. High Cleaning Performance
16
Largest washer with dryer
10kg washer with dryer is first in the world.
Performance
•Use less condensing water than any
other washer with dryer.
•High dry performance
•High energy efficiency
•2-step safety equipment
2. Condensing Dry system
A condensing dryer takes the moist air released from your laundry and mixes it with cool air. This process returns the moisture to water, which is pumped away to a drain line. The some of steam is away througth the dispense and vent.
1
2
4
3
1:dry duct 2:tub3:fan 4:condensing duct
17
●Working Description 1) During Wash cycle:
0~3 min - Pump On
3~10 min - 20 sec On
10 sec Off
2) During Rinse cycle:
always On
3) Start operation after water is
supplied
Drain Pump Circulation Pump
●Feature 1) Spray detergent solution
and water onto the load
over and over.
2) Clothes are soaked more
quickly and thoroughly during
wash cycle.
3) The detergent suds can be
removed more easily by the
water shower during
rinse cycle.
4) Uses both water and detergent
more efficiently.
5) Is used to wash inside of the
door window.
Shower Connector
Inside of the drum
3. Water Circulation
183. Door Lock Switch
Unlock②Lock
①Lock
●Working Description 1) Stop →Operation:
1 pulse applied to Lock
2) Operation →Stop:
2 pulses applied to Unlock
* Power failure during operation:
lock for 5 min
●Feature 1) Normally be unlocked, so that
the washer can be opened by
hand even if the washer has
no power supply.
2) Instantaneous locking/
unlocking.
3) Enable to open from inside
for safety.
●The door cannot be
unlocked if: 1) The drum is moving.
2) The water temperature exceed
45 degrees C.
3) The water level exceed a
certain point.
193. Ball Sensor
Ball Sensor
●Working Description 1) Senses within 60~300 rpm during spin.
2) If the tub hits the ball sensor then drum stops rotating and
rebalance the load.
3) Sensor detects out-of-balance and makes loads balanced to
achieve lower noise and vibration.
●Feature 1) Detects unbalanced load.
2) Prevents a striking/walking.
3) Drum stops if excessive
vibration occurred and then
tub hits the ball sensor. HOLE
BALL
CASE
TR(Sensing light)
DIODE(emitting light)
light
20
POWER button
CYCLE SELECTOR knobSTART/PAUSE button
STATUSINDICATOR
EST. TIMEREMAINING
DOOR LOCKEDlamp
CUSTOMPROGRAMbutton
DRYbutton
WASH/RINSE temp.SPIN SPEEDSOIL LEVELbuttonOPTION
buttons
CHILDLOCK
1
2 3
4
1098
6 7
5
4. Control Panel
215. Test Operation
* BEFORE PERFORMING SERVICE 1. Be careful of electric shock when disconnecting parts for while troubleshooting. 2. The voltage of each terminal is 120V AC and DC when the unit is plugged in. 3. First of all, check the connection of each electrical terminal with the wiring diagram.
① Preparation for washing
•Connect the power plug to the outlet.•Connect the inlet hose.
② Press the POWER button
•In case of NORMAL program.
③ Press the START/PAUSE button
•Check if water is suppied through the detergent dispenser.
④ Check the water supply ⑤ Check automatic reverse turn
⑥ Check the water heating
•Check if the drum rotates clockwise and counterclockwise.
•Press the POWER button twice the restart.•Press the SPIN SPEED button. •Press the Start/Pause button.
⑦ Check drain and spin
• Listen for clicking sounds to determine if the door has unlocking.
⑧ Press the START/PAUSE button
•If SVC is needed during check, remove the remaining water by pulling out the hose cap.
⑧ Power off and open the door
•Listen for clicking sounds to determine if the door has locked.
•Press the WASH/RINSE button and the present temperature will be displayed.
22
Fan motor
6. Wiring Diagram
237. QC Test Mode
* The washer must be empty and the controls must be in the off state.** Even if you press the button to check inlet valve, inlet valve does not operate until the drum completely stop from spinning.
248. Error Display
258. Error Display
268. Error Display
279. Troubleshooting
289. Troubleshooting
299. Troubleshooting
309. Troubleshooting
3110. Disassembly instruction
3210. Disassembly instruction