Related Manuals for LG LM-2164H2L
Summary of Contents for LG LM-2164H2L
- Page 1 Библиотека СОК Multi Type Room Air Conditioner SERVICE MANUAL MODEL: LM-2164H2L/M LM-3064H3L/M...
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Page 2: Table Of Contents
Contents Functions............................3 Product Specifications ........................ 5 Dimensions........................... 7 Refrigeration Cycle Diagram..................... 10 Wiring Diagram .......................... 11 Operation Details ........................12 Display Function ........................19 Self-Diagnosis Function ......................19 Installation ..........................20 Operation ............................ 34 Disassembly of the parts (Indoor Unit)..................36 2-way, 3-way Valve ........................ -
Page 3: Functions
Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting Temp. Starting Current Control • Indoor fan is delayed for 5 seconds at the starting. Time Delay Safety Control •... - Page 4 Remote Controller Operation ON/OFF Operation Mode Selection Cooling Operation Mode.( Auto Operation Mode.( (Cooling (Heating Healthy Dehumidification Operation Mode.( Heating Operation Mode.( model only) model only) Fan Speed Selection (Low) (Med) (High) (CHAOS) Room, Temperature Display : (High: 39°C LOW : 11°C) Temperature Setting Down to 18°C Down to 16°C...
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Page 5: Product Specifications
Product Specifications 1. LM-2164H2L/M Operation A-Unit + B-Unit A-Unit Only B-Unit Only Unit Item 21,000(5,292) 14,000(3,528) 7,000(1,764) Cooling Capacity Btu/h(kcal/h) 21,000(5,292) 14,000(3,528) 7,000(1,764) Heating Capacity Moisture Removal §⁄ /h 1Ø, 220-240V, 50Hz Power Source ø, V, Hz Indoor 10.5 Air Circulation... - Page 6 2. LM-3064H3L/M Operation A-Unit B or C-Unit A+B or C A+B+C Item Unit 14,000(3,528) 10,000(2,520) 24,000(6,048) 14,000(3,528) 28,000(7,056) Cooling Capacity Btu/h(kcal/h) 14,000(3,528) 10,000(2,520) 24,000(6,048) 14,000(3,528) 28,000(7,056) Heating Capacity Moisture Removal §⁄/h 1Ø, 220-240V, 50Hz Power Source ø, V, Hz 10.5 –...
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Page 7: Dimensions
Dimensions 1. Indoor Unit Tubing hole cover Installation plate Installation plate (14K) (7K) Left rear piping Right rear piping Left rear piping Right rear piping 80mm 50mm ø70mm ø70mm (14K ) (7K) MODEL 7K Btu Series 14K Btu Series - 7 -... - Page 8 2. Outdoor Unit 2-1. LM-2164H2L/M Gas side 3-Way valve Liquid side 2-Way valve MODEL LM-2164H2L/M 76.5 - 8 -...
- Page 9 2-2. LM-3064H3L/M Gas side 3-way valve Liquid side 2-way valve MODEL LM-3064H3L/M 76.5 - 9 -...
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Page 10: Refrigeration Cycle Diagram
Refrigeration Cycle Diagram 1. LM-2164H2L/M COOLING HEATING COMPRESSOR-A DEICE 4-WAY VALVE 3-WAY COMPRESSOR-B HEAT VALVE EXCHANGER 4-WAY VALVE HEAT A-UNIT B-UNIT EXCHANGER CAPILLARY TUBE 2-WAY CAPILLARY TUBE VALVE 2. LM-3064H3L/M(Cooling & Heating models) Indoor Unit Outdoor Unit 2- WAY Valve... -
Page 11: Wiring Diagram
Wiring Diagram 1. Indoor Unit • LM-2164H2L/M • LM-3064H3L/M FORCED MAIN PCB OPERATION AUTO RESTART REMOTE CONTROL MOTOR THERMISTOR STEP SH-CAPA. MOTOR FUSE AC250V/T2A CN-DISP1 PILLAR 1 ( L ) 2 ( N ) TERMINAL DISPLAY PCB ASM TO OUTDOOR UNIT... -
Page 12: Operation Details
Operation Details MAIN UNIT FUNCTION • DISPLAY 1) Cooling Only Model Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on) Sleep Timer Indicator •... - Page 13 • While in compressor off, the indoor fan repeats low airflow speed and pause. • While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidifica- tion operation and 4-min compressor off repeat. Compressor ON Temp. Setting Temp+0.5°C Compressor OFF Temp.
- Page 14 Fuzzy Operation (Cooling Only Model) • According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on. Compressor ON Temp Setting Temp + 0.5°C Compressor OFF Temp...
- Page 15 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.
- Page 16 Off-Timer Operation • When the set time is reached after the time is input by the remote control, the appliance stops operating. • The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. •...
- Page 17 Auto Restarting Operation • When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. •...
- Page 18 Remote Control Operation Mode • When the remote control is selected by the slide switch on the main unit, the appliance operates according to the input by the remote control. Protection of the evaporator pipe from frosting • If the indoor pipe temp is below 0°C in 7 min. after the compressor operates without any pause while in cool- ing cycle operation mode, the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting.
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Page 19: Display Function
Display Function 1. Heating Model 2. Cooling Model Operation Indicator Operation Indicator • Cooling, Soft Dry, Fan, Heating • Cooling, Soft Dry, Fan Sleep Timer Indicator Sleep Timer Indicator • Sleep Mode • Sleep Mode Timer Indicator Timer Indicator • Timer Mode •... -
Page 20: Installation
Installation (1) Installation of Indoor, Outdoor unit 1) Selection of the best location Front 1. Indoor unit There should not be any heat source or steam • Left near the unit. • There should not be any obstacles to prevent Rear left the air circulation. - Page 21 2) Indoor Unit Installation The mounting wall should be strong and solid enough to protect it from the vibration. Installation Plate 1. Mount the installation plate on the wall with four Type "A" screws. (If mounting the unit on the concrete wall, consid- er using anchor bolts.) marking-off line Type "A"...
- Page 22 (2) Piping and Drainage of Indoor Unit 1) Preparation of pipings Pipe cutter 1. Cut the pipes and the cable. • Use the accessory piping kit or the pipes pur- chased locally. Slanted Rough • Measure the distance between the indoor and the outdoor unit.
- Page 23 2) Connection of Pipings Installation plate 1. Remove the installation plate • Pull the two '∆' marked portion of bottom of the chassis and pull the installation plate out of chas- sis. Pull 2. Route the drain hose and the indoor tubing. Pull For left rear piping 3.
- Page 24 6. Indoor unit installation. • Hook the indoor unit onto the upper position of the installation plate. (Engage the two hooks of the rear top of the indoor unit with the upper Connecting edge of the installation plate.) cable Ensure the hooks are properly seated on the installation plate by moving it in left and right.
- Page 25 9. Set the pipings and the connecting cable to the back of the chassis with the tubing holder. • Hook the edge of tubing holder to tap on chas- sis and push the bottom of tubing holder to be engaged in the bottom of chassis. Drain hose Taping Piping...
- Page 26 (3) Connecting Pipings and the cable to Outdoor unit 1) Connecting the pipings to the Outdoor unit 1. Align the center of the pipings and sufficiently tighten the flare nut with fingers. 2. Finally, tighten the flare nut with torque wrench until the wrench clicks.
- Page 27 2) Connection of the cable Outdoor unit 1. Remove the cover control from the unit by loosen- ing the screw. Terminal block Connect the wires to the terminals on the control board individually as the following. Over 5mm Holder for power supply Terminal on the OUTDOOR UNIT cord...
- Page 28 (4) Checking the Drainage and Pipe forming 1) Checking the Drainage 1. Remove the Grille from the cabinet • Set the up-and-down air direction louver to open position(horizontally) by finger pressure. • Remove the securing screws. • To remove the Grille, pull lower the left and right side of the grille toward you (slightly tilted) and lift it straight upward.
- Page 29 2) Connect the cable to the indoor unit 1. Connect the wires to the terminals on the control board individually according to the outdoor unit connection. • Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively.
- Page 30 3) Form the pipings 1. Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands(for the left pipings). Drain hose • If you want to connect an additional drain hose, Taping the end of the drain-outlet should keep distance from the ground.(Do not dip it into water, and fix it on the wall to avoid swinging in the wind.) In case of the Outdoor unit is installed bellow...
- Page 31 (5) Air Purging of the Pipings and indoor unit The air which contains moisture remaining in the is refrigeration cycle may cause a malfunction on the compressor. 1. Confirm that both the liquid side valve and the gas side valve are set to the closed position. 2.
- Page 32 (7) Maximum Length of Pipe and Freon Extra Charge Charge amount per 1m CONNECTION TYPE Capacity STANDARD Charge am't(g) Model (Btu/h) LENGTH(m) per 1m LM-2164H2L LM-3064H3L LM-2164H2L 1400 LM-3064H3L 1400 B(Length) INDOOR UNIT A(Height) OUTDOOR UNIT C(Height)
- Page 33 (8) Test running 1) Connection of power supply 1. Connect the power supply cord to the inde- Battery Cover pendent power supply. 2. Prepare the remote control. • Insert two batteries provided. Remove the battery cover from the remote con- troller.
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Page 34: Operation
Operation (1) Name and Function-Remote Control (Door Closed) Remote Control Signal transmitter Transmits the signals to the room air conditioner. Signal transmitter START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. OPERATION MODE SELECTION BUTTON Used to select the operation mode. - Page 35 (2) Name and Function-Remote Control (Door Opened) Remote Control Signal transmitter Transmits the signals to the room air conditioner. Signal transmitter ON/OFF TIMER BUTTONS Used to set the time of starting and stopping operation. TIME SETTING BUTTONS Used to adjust the time. TIMER SET/CANCEL BUTTONS Used to set the timer when the desired time is obtained and to cancel the Timer operation.
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Page 36: Disassembly Of The Parts (Indoor Unit)
Disassembly of the parts (Indoor unit) Warning : Disconnect the unit from power supply before mak- ing any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis • Set the up-and-down air discharge louver to open position (horizontally) by finger pressure. - Page 37 2. To remove the Control Box • Remove securing screws. • Pull the control box out from the chassis care- fully. 3. To remove the Discharge Grille • Pull the discharge grille out from the chassis carefully. 4. To remove the Evaporator •...
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Page 38: 2-Way, 3-Way Valve
2-way, 3-way Valve 2-way Valve (Liguid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench Open position (4mm) Closed position Flare nut Flare nut Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit Works Shaft position... - Page 39 (1) Pumping down Liquid side Indoor unit Outdoor unit Close 2-Way valve Gas side Open 3-Way valve manifold gauge Low-handle Hi- handle (CLOSE) (CLOSE) Procedure • 6. Operate the air conditioner at the cooling cycle 1. Confirm that both the gas side and liquid side and stop it when the gauge indicates 1kg/cm valves are set to the open position.
- Page 40 (2) Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit Close 2-Way valve Gas side Open 3-Way valve manifold gauge Vacuum pump Low- handle Hi- handle (OPEN) (CLOSE) • Procedure 1. Confirm that both the liguid side valve and gas 6.
- Page 41 (3) Gas Charging (After Evacuation) Liquid side Indoor unit Outdoor unit Close 2-Way valve Gas side Open 3-Way valve manifold gauge Charging cylinder Low-handle Hi- handle (OPEN) Check valve (CLOSE) • Procedure 1. Connect the gauge to the charging cylinder. - Connect the charge hose which you disconnect- This is different from previous procedures.
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Page 42: Cycle Troubleshooting Guide
Cycle Troubleshooting Guide Trouble analysis 1. Check temperature difference between intake and discharge air and operating current. Temp. difference : approx. 0°C All amount of refrigerant leaked out. Current : less than 80% of Check refrigeration cycle. rated current Temp. Difference Refrigerant leakage Temp. -
Page 43: Electronic Parts Troubleshooting Guide
Electronic Parts Troubleshooting Guide 1. Product does not operate at all. (* Refer to Electronic Control Device drawing and Schematic diagram.) Turn off Main Power (After 10 seconds) Turn on Main Power Does "beeping" sound is made from the Indoor Unit? Primarily, the operating condition of Micom is OK. - Page 44 2. The product is not operate with the remote control. Turn on Main Power While the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped. When the compressor stopped Indoor Fan is driven by a low speed. At this point the wind speed is not controlled by the remote controller.
- Page 45 3. When cooling does not operate Turn on Main Power Operate "Cooling Mode( )" by setting the desired temperature of the remote controller is less than one of the indoor temperature by 1°C at least. When in Air Circulation Mode, Compressor/Outdoor Fan is stopped. Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger(EVA).
- Page 46 4. When indoor Fan does not operate. Turn off Main power Check the connection of CN-FAN or CN-MOTOR Check the Fan Motor Check the Fuse(AC250V/T2A) Check the related circuit of indoor Fan Motor. • The pin of Micom, and the part for driving SSR •...
- Page 47 5. When Vertical Louver does not operate. • Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the Vertical Louver with hands ¢¡ Normal • Check the connecting condition of CN-U/D Connector •...
- Page 48 6. When Heating does not operate Turn ON Main Power Operate “Heating Mode( )” by setting the desired temperature of the remote control is higher than one of the indoor temperature by 2°C at least. In heating Mode, the indoor fan operates in case the pipe temperature is higher than 28°C.
- Page 49 7. Outdoor unit does not operate at all. Check Outdoor Unit PCB Board Operation Check in Outdoor Items Content Remedy • Power Transformer - About AC220V/240V ± 10% - Check the power voltage (Outdoor unit) • Replace Trans - Input Voltage - About AC14 ±...
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Page 50: Electronic Control Device
Electronic Control Device 1. Indoor Unit • MAIN P.C.B ASSY(LM-2164H2L/M, LM-3064H3L/M) - 50 -... - Page 51 2. Outdoor Unit • MAIN P.C.B ASSY(LM-2164H2L/M, LM-3064H3L/M) -51-...
- Page 52 3. Display Ass'y - 52 -...
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Page 53: Schematic Diagram
Schematic Diagram 1. Indoor Unint (LM-2164H2L/M, LM-3064H3L/M) -53-... - Page 54 2. Outdoor Unit (LM-2164H2L/M, LM-3064H3L/M) -54-...
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Page 55: Exploded View And Replacement Parts List
Exploded View & Replacement Parts List 1. Indoor Unit • LM-2164H2L/M, LM-3064H3L/M(7K Btu Models) - 55 -... - Page 56 QUANTITY PART No. DESCRIPTION LM-2164H2L/M LM-3064H3L/M REMARK B UNIT B/C UNIT 3300A10002A PLATE INSTALLATION 3H03651A HOLDER TUBE 3H03652A COVER, TUBE 4681A20003C MOTOR, BLOWER 3141A20001B CHASSIS ASSY 5901AR6141A CROSS FLOW FAN 3H02821A BEARING ASSY 4930AR6138A HOLDER, EVA 5421AR6176K EVAPORTATOR ASSY 5421AR1576A...
- Page 57 • LM-2164H2L/M, LM-3064H3L/M(14K Btu Models) - 57 -...
- Page 58 QUANTITY PART No. DESCRIPTION LM-2164H2L/M LM-3064H3L/M REMARK A UNIT A UNIT 1H00843A PLATE INSTALLATION 3H03651A HOLDER, TUBE 3H03652A COVER 4681A20003T MOTOR, BLOWER 3141A20003D CHASSIS ASSY 5901AR6141B CROSS FLOW FAN 3H02821B BEARING ASSY 4930AR6138A HOLDER, EVA 5421A20031E EVAPORATOR ASSY 5421A20032A EVAPORATOR...
- Page 59 2. Outdoor Unit • LM-2164H2L/M - 59 -...
- Page 60 QUANTITY PART No. DESCRIPTION REMARK LM-2164H2L/M 3041AP2741H BASE ASSY(OUTDOOR) 5403AP2740W CONDENSER ASSY, BENT 4A01556A HOLDER(COND) 2520UMLP2AA COMPRESSOR SET 2520UKCP2BA COMPRESSOR SET 4H00982E ISOLATOR, COMP 4984AR4361A ISOLATOR, COMP 4986U-L001G GASKET 6750U-L027A O.L.P. 6750U-L013A O.L.P. 4790U-L002A SPRING 3550U-L002D COVER, TERMINAL 4H00947A NUT, HEXAGON FLANGE...
- Page 61 QUANTITY PART No. DESCRIPTION REMARK LM-2164H2L/M 1A00195B FAN ASSY, PROPELLER 1WPA0800014 WASHER, PLAIN 1NHA0801206 NUTS HEXAGON[1] 3721A20004E PANEL ASSY, FRONT 4948AP2527A ORIFICE 3530A20007B GRILLE ASSY, DISCHARGE 3H03653B SCREW 3H03266L COVER ASSY, TOP 479130004A BARRIER ASSY, OUTDOOR 3551AP7042D COVER ASSY, CONTROL...
- Page 62 • LM-3064H3L/M - 62 -...
- Page 63 QUANTITY PART No. DESCRIPTION REMARK LM-3064H3L/M 3041AP7177B BASE ASSY(OUTDOOR) 6140AP2096A CONDENSER ASSY, BENT 4A01556A HOLDER(COND) 2520UMLP2AA COMPRESSOR SET 2520UMLP2CA COMPRESSOR SET 4H00982E ISOLATOR, COMP 4986U-L001G GASKET 6750U-L027A O.L.P. 4790U-L002A SPRING 3550U-L002D COVER, TERMINAL 4H00947A NUT, HEXAGON FLANGE 4H01811C BRACKET, WASHER 1NHA0801206 NUTS HEXAGON[1] 3A02027A...
- Page 64 QUANTITY PART No. DESCRIPTION REMARK LM-3064H3L/M 3A01394A BRACKET 4681A20008N MOTOR ASSY, AC 1A00195B FAN ASSY, PROPELLER 1WPA0800014 WASHER, PLAIN 1NHA0801206 NUTS HEXAGON[1] 1A00197C PANEL ASSY, FRONT 4948AP2527A ORIFICE 3530A20007B GRILLE ASSY, DISCHARGE 3H03653B SCREW 3H03266H COVER ASSY, TOP 4791A30004B BARRIER ASSY, OUTDOOR 3551A30028B COVER ASSY, CONTROL - 64 -...
- Page 65 April, 2000 P/No.: 3828A30074S Printed in Korea...