Related Manuals for LG LP-K2060CL/CA
Summary of Contents for LG LP-K2060CL/CA
-
Page 1: Service Manual
Package Air Conditioner SERVICE MANUAL MODEL: LP-K2060CL/CA LP-K3060CL/CA LP-K3020CL/CA LP-K4020CL/CA... -
Page 2: Table Of Contents
Contents Functions Product Specifications (Cooling Model only) Dimensions Refrigeration Cycle Diagram Wiring Diagram Operation Details Installation of Indoor, Outdoor Unit Test Running 3-way Valve Cycle Troubleshooting Guide Electronic Parts Troubleshooting Guide Electronic Control Device Schematic Diagram Exploded View and Replacement Parts List –2–... -
Page 3: Functions
Functions Indoor Unit Power Switch ON/OFF Operation Mode Control • Cooling, Auto, Soft Dry Indoor Fan Speed Control • High, Low Jet Cool • Speed Cooling operates super high fan speed in cooling mode Energy Saving Room Temperature control • Maintains the room temperature in accordance with the Setting Temp. •... -
Page 4: Remote Control
Remote Control Operation ON/OFF Cooling Operation Mode Auto Operation Mode • The setting temperature indoor fan speed and desired operation mode are automatically set. Sot Dry Operation Mode • Intermittent operation of fan at low speed. Fan Operation • Used to circulate room air without cooling. Timer Control •... -
Page 5: Product Specifications (Cooling Model Only)
Product Specifications (Cooling model only) MODEL LP-K3060CL/CA LP-K4020CL/CA ITEMS UNIT POWER SUPPLY Ø, V, Hz 1, 220-240, 50 1, 220,60 COOLING CAPACITY Btu/hr 27,800 36,000 HEATING CAPACITY Btu/hr (Incl. elec. Heater) POWER INPUT COOLING 3,000 3,500 HEATING RUNNING COOLING 14.5 CURRENT HEATING MODEL... -
Page 6: Dimensions
Dimensions Indoor Unit Outdoor Unit Air Outlet Vent Air Intake Vent Remote Signal (Rear) Receptor Air Intake Vent Air Outlet Vent Refrigeration Cycle Diagram INDOOR UNIT OUTDOOR UNIT LIQUID SIDE CAPILLARY TUBE CHECK VALVE CAPILLARY TUBE BY PATH CAPILLARY TUBE HEAT HEAT EXCHANGER... -
Page 7: Wiring Diagram
Wiring Diagram (1) • LP-K3060CL/CA LP-K3020CL/CA HIDDEN LINE: FIELD WIRING INDOOR UNIT OUTDOOR UNIT CIRCUIT DIAGRAM (CONNETING CABLE) GN/YL GN/YL GN/YL POWER INPUT BL BK GN/YL CN-GND FUSE 2 3 4 TERMINAL BLOCK(6P) (250V/3A) GN/YL RY-S/HIGH RY-HIGH MOTER POWER RY-MID RELAY RY-LO MAIN PCB ASM... - Page 8 Wiring Diagram (2) Indoor Unit • LP-K4020CL INDOOR UNIT CIRCUT DIAGRAM FUSE (250V 3A) RY-SH RY-H RY-MID NOTE DISPLAY SYNCHRONOUS MOTOR CAPACITOR FOR FAN(INDOOR) PCB ASM INDOOR FAN MOTOR THERMISTOR FOR INDOOR TEMP. CAPACITOR FOR FAN(OUTDOOR) NOTE OUTDOOR FAN MOTOR BROWN RUN CAPACITOR FOR COMP.
-
Page 9: Operation Details
Operation Details (1) The function of main control 1. Time Delay Safety Control ƒU3min¡ƒ The compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle. (Protection of compressor) ƒU3sec¡ƒ The indoor fan is ceased for 3 seconds to prevent relay noise. (Protection of fan relay and micro chip) ƒU30sec¡ƒ... - Page 10 4. Auto Operation (Cooling Model only ƒU The operation procedure is as following. Press Start/Stop Button Select Auto Operation Mode Check the Room temperature ƒU Auto Operation for Cooling Operation Condition Intake-air Temperature Setting temperature Fan speed Over 26°C 25°C Controlled When Switch to Over 24°C~below 25.5°C...
- Page 11 6. Soft Dry Operation Mode • During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 2°C, the compressor OFF temperature is the setting temperature minus 1°C. • When the room temperature rises over the compressor ON temperature, the operation mode is switched to the Cool- ing mode.
-
Page 12: Energy Saving
10. Alarm mode display / only displayed while operating. C C O O : The sensor for sensing room temperature is open or short. 11. Jet Cool During the JET COOL function at any moment, the A/C starts to blow the cool air at extremely high speed setting the room temp. - Page 13 14. Function for test operation 1) Outline of Operation - This is for checking the condition of installation during the installation, and it is operated by cooling, Fan speed is high, comp. on, and Auto air flow operations without setting temperature. 2) Operation or Cancel - Do test operation, if you push ON/OFF button and the down room temperature checking button over 3 sec- onds at the same time.
-
Page 14: Installation Of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit 1. Selection of the best location 1) Indoor unit • There should not be any heat source or steam near the unit. 5 c m • There should not be any obstacles to prevent the 5 c m air circulation. -
Page 15: Indoor Unit Installation
2. Indoor Unit installation 3. Outdoor unit Installation ¥LThe mounting floor should be strong and solid ¥LInstall the outdoor unit on the concrete or any enough to prevent it from vibration. solid base securely and horizontally by securing it with bolts (Ø12mm) and nuts. ¥MDrill the piping hole with 70mm diameter hole- core drill at either the right or the left of indoor ¥MIf there is any vibration transmitted to the build-... -
Page 16: Installation Method
Installation Method 1. Procedure Installation works Descriptions Preparation of tools and installation parts Preparation of installation Flaring the pipes To insert the flare nuts, mounted on the connection parts of both indoor and outdoor unit, onto the copper pipes. Pipe bending To reduce the flow resistance of refrigerant. -
Page 17: Preparation Of Installation Parts And Tools
2. Preparation of installation parts and tools Installation Parts, Tools Flaring tool (Ø 6,35 - Ø 19,05) Flaring the pipes Remear Remove burrs from cut edges of pipes. Pipe cutter (MAX 35mm Copper pipe) Cutting the pipings Wrench (H5, H4 hexagonal wrench) To open the service valve Pipe bender Bending the pipings... -
Page 18: Preparation Of Piping
Piping of Indoor Unit 1. Preparation of piping Pipe cutter ¤ Cut the pipes and the cable • Use the accessory piping kit or the pipes purchased locally. Slanted Rough • Measure the distance between the indoor and 90° the outdoor unit. •... -
Page 19: Connection Of Piping
2. Connection of piping ¤ Move the indoor tubing and drain hose to the hole • Remove tubing holder and pull the tubing out of the chassis. ¤ŁReplace the tubing holder into original position ¤ØRoute the tubing and the drain hose staight backwards. ¤ŒInsert the connecting cable into the indoor unit through the hole. - Page 20 Connecting the Cable to Indoor Unit • In order to protect cable, it should be inserted “Bushing Rubber”. • The inside and outside connecting cable can be connected after opening the inlet grille. ¤ Open the inlet grille manually. ¤ŁConnet the supplied cables to the connector on the control board.
- Page 21 Connecting Piping and the Cable to Outdoor Unit 1) Connecting pipings to outdoor unit ¤ Align the center of the pipings and sufficiently tighten the flare nut with fingers. ¤ŁFinally tighten the flare nut with torque wrench until the wrench clicks. •...
-
Page 22: Power Supply And Wiring
Power Supply and Wiring Outside The unit is completely wired internally at the fac- Conductor UNIT VOLTS diameter cross-sectional area tory according to general rule of electrical tech- 450/750V 4.0mm 13.3mm nology, but local rules, if they are required, should 28K/30K be complied with. -
Page 23: Checking The Drainage
Checking the Drainage and Form the Piping 1. Checking the Drainage ¤ Remove the inlet grille with your hands as shown (right and left) and pull in the direction indicated by the arrow. ¤Ł Check the drainage • Pour a glass of water into the drain pan. •... -
Page 24: Test Running
Test running 1. PRECAUTIONS IN TEST RUN • The initial power supply must provide at least 90% of the rated voltage. Otherwise, the air conditioner should not be operated. Carry out the test run more than 5 minutes without fail. Caution (Test run will be cancelled 18 minutes later automatically) •... -
Page 25: Hand Over
CAUTION After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover. 2) Provide a circuit breaker switch between power source and the unit. -
Page 26: 3-Way Valve
3-way Valve 1. Pump down Liquid side Indoor unit Open Outdoor unit 3-Way valve Gas side Closed 3-Way valve CLOSE CLOSE Purge the air • Procedure (6) Operate the air conditioner in cooling mode (1) Confirm that both liquid side and gas side and stop it when the gauge indicates valves are set to the open position. - Page 27 1) Re-airpurging (Re-installation) Liquid side Indoor unit Closed Outdoor unit 3-Way valve Gas side Closed 3-Way valve Gas cylinder OPEN CLOSE • Procedure (6) Disconnect the charge set and the gas (1) Confirm that both the liquid side valve and the cylinder, and set the 2-way and 3-way valves gas side valve are set to the closed position.
- Page 28 2) Balance refrigerant of the 3-way valve (Gas leakage) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open OPEN CLOSE • Procedure (1) Confirm that both the liquid side and gas side (3) Open the valve (Lo side) on the charge set valves are set to the back seat.
- Page 29 2. Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open Vacuum pump OPEN CLOSE • Procedure (1) Connect the vacuum pump to the center hose (3) Close the valve (Lo side) on the charge set, of charge set center hose turn off the vacuum pump, and confirm that the gauge needle does not move (approxima-...
-
Page 30: Gas Charging
3. Gas Charging (After Evacuation) Liquid side Indoor unit Outdoor unit Open 3-Way valve Gas side Open 3-Way valve Check valve Charging cylinder OPEN CLOSE • Procedure (1) Connect the charge hose to the charging This is different from previous procedures. cylinder. -
Page 31: 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 leakege Temp. -
Page 32: Electronic Parts Troubleshooting Guide
Electronic Parts Troubleshooting Guide : The unit does not operate. Possible Trouble 1 Check the FUSE Is the input voltage and the wiring diagram. of transformer AC220V? Is the output voltage Is shorted the Check the main P.C.B of transformer about AC14V? transformer output? pattern Exchange... -
Page 33: Electronic Control Device
Electronic control device • MAIN P.C.B ASM • DISPLAY P.C.B ASM CA MODEL A/CL –33–... -
Page 34: Schematic Diagram
Schematic Diagram –34–... -
Page 35: Exploded View And Replacement Parts List
Exploded View and Replacement Parts List 1. Indoor Unit –35–... - Page 36 –36–...
- Page 37 Parts List (Indoor Unit ) Q'TY PART No. PARTS NAME REMARK LP-K3060CL LP-K3020CL LP-K4020CL LP-K3060CA LP-K3020CA LP-K4020CA FRAME DIFFUSERR ASSY 3531A10011C FRAME DIFFUSER 3210A10001D LOUVER HORIZONTAL 4758A30003B LINK HORIZONTAL 4520A30007B SUPPORT-H 4980A30007B LINK HORIZONTAL 4520A30008A SYNCHRONOUS MOTOR 2H01102A 3A01947A DECO 3508A30003B 3A01943C LOUVER VERTICAL...
- Page 38 Q'TY PARTS NAME PART No. REMARK LP-K3060CL LP-K3020CL LP-K4020CL LP-K3060CA LP-K3020CA LP-K4020CA BLOWER 5834AP1097A RUBBER 5040AP4082A LOCKER 4A01405C SPRING LOCK WASH 1WSD0800030 1NHA0801206 DRAIN PAN 3086AP1217A DRAIN HOSE 5251AR1222J CAPACITOR 3H00611C 2H00841J DRAIN PAN ASSY 3087AP2581 MAIN PCB ASSY 6871A20067 6871A20040 COVER CONTROL 3550AP2516...
- Page 39 2. Outdoor Unit –39–...
- Page 40 Parts List (Outdoor Unit ) Q'TY PART No. PARTS NAME REMARK LP-K3060CL LP-K3020CL LP-K4020CL LP-K3060CA LP-K3020CA LP-K4020CA BASE W. ASSY 2A02084A 3041A30003D SCREW WELD 4H00525B COIL BEND ASSY 5403AP2042F 6140AP2096E COMP 2A01032A 5416AR1411J 2A01196A INSULATION BUTYL 7250AR7015K ISOLATOR VIBRATION 4H00363 TUBE DISCHARGE 5210A30428B 5210A30156B...
- Page 41 November, 1999 P/No.: 3828A30014Y Printed in Korea...