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INSTALLATION MANUAL
AIR CONDITIONER
• Please read this installation manual completely before installing the product.
• Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
TYPE : CEILING CONCEALED DUCT
MODEL : AB-W30G7SA4
AB-W36G7SA4
AB-W42G7SA4
AB-W55G7SA4
P/NO : MFL62541007
www.lg.
www.lg.com
w w
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Table of Contents
Related Manuals for LG AB-W30G7SA4
Summary of Contents for LG AB-W30G7SA4
- Page 1 • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. • Please retain this installation manual for future reference after reading it thoroughly. TYPE : CEILING CONCEALED DUCT MODEL : AB-W30G7SA4 AB-W36G7SA4 AB-W42G7SA4 AB-W55G7SA4 www.lg.com www.lg.
- Page 2 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING... - Page 4 IMPORTANT SAFETY INSTRUCTIONS • When installing and moving the air conditioner to another site, do not charge it with a different refrigerant from the refrigerant specified on the unit. - If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may mal- function and the unit may be damaged.
- Page 5 IMPORTANT SAFETY INSTRUCTIONS CAUTION Installation • Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product. • Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. - It may cause a problem for your neighbors.
- Page 6 IMPORTANT SAFETY INSTRUCTIONS • Safely dispose of the packing materials. - Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. - Tear apart and throw away plastic packaging bags so that children may not play with them. If children play with a plastic bag which was not torn apart, they face the risk of suffocation.
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Page 7: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING EN- FORMING THE PIPING ERGY REMOTE CONTROLLER IMPORTANT SAFETY IN- INSTALLATION Point of remote controller installation STRUCTIONS Locations for remote controller INTRODUCTION EXTERNAL STATIC PRES- Features SURE & FLOW INSTALLATION PLACES TEST RUNNING Indoor unit Outdoor unit... -
Page 8: Introduction
INTRODUCTION INTRODUCTION Features Top view Control box Air intake vents Front view Air outlet vents Remote Controller Air intake vents Air outlet vents Communication cable Refrigerant pipe Drain hose... -
Page 9: Installation Places
INSTALLATION PLACES INSTALLATION PLACES Indoor unit Outdoor unit - The place shall easily bear a load exceeding - If an awning is built over the unit to prevent four times the indoor unit’s weight. direct sunlight or rain exposure, make sure that heat radiation from the condenser is not - The place shall be able to inspect the unit as restricted. -
Page 10: The Indoor Unit Installation
THE INDOOR UNIT INSTALLATION THE INDOOR UNIT INSTALLATION Case2 Install the unit above the ceil- ing correctly. Position of Console Bolt - A place where the unit will be leveled and Case1 that can support the weight of the unit. - A place where the unit can withstand its vi- Position of suspension Bolt bration. - Page 11 THE INDOOR UNIT INSTALLATION - Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling. - Mount the suspension bolts to the set anchor firmly. - Secure the installation plates onto the suspension bolts (adjust level roughly) using nuts, wash- ers and spring washers.
- Page 12 THE INDOOR UNIT INSTALLATION Caution for gradient of unit and Safety drain drain piping - There is no need to provide a trap for the safty drain. If the safty drain pipe is con- Lay the drain hose with a downward inclina- nected to the main drain pipe, make the con- tion so water will drain out.
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Page 13: Insulation, Others
THE INDOOR UNIT INSTALLATION Insulation, others Test and check * After all workings are finished, check the Insulate the joint and tubes completely. working and operation. Thermal insulation : All thermal insulation - Air distribution : Is the air circulation good? must comply with local requirement. -
Page 14: Piping Length And The Elevation
PIPING LENGTH AND THE ELEVATION PIPING LENGTH AND THE ELEVATION Pipe Size *Additional Length A(m) Elevation B(m) Capacity mm(inch) refriger- (Btu/h) ant(g/m) Liquid Standard Max. Standard Max. 15.88(5/8) 9.52(3/8) 15.88(5/8) 9.52(3/8) 15.88(5/8) 9.52(3/8) 15.88(5/8) 9.52(3/8) If installed tube is shorter than 7.5m, additional charging is not necessary Additional Refrigerant = (A-7.5) x Additional refrigerant (g) Outdoor unit Indoor unit... -
Page 15: Connecting Pipes
CONNECTING PIPES CONNECTING PIPES Preparation of Piping Flare nut Main cause of gas leakage is defect in flaring Copper tube work. Carry out correct flaring work in the fol- lowing procedure. Cut the pipes and the cable. - Use the accessory piping kit or the pipes pur- chased locally. -
Page 16: Connecting The Pipings To The Indoor
CONNECTING PIPES Connecting the pipings to the Connecting the pipes to the indoor unit and drain hose to Outdoor unit drain pipe Connecting the pipes to the Outdoor unit - Align the center of the pipings and suffi- - Align the center of the pipings and suffi- ciently tighten the flare nut by hand. - Page 17 CONNECTING PIPES - When connecting in a downward direction, knock out the knockout hole of the base pan. (refer to figure 2) <Figure 2> Knock-out Base pan Preventing foreign objects from en- tering (Figure3) - Plug the pipe through-holes with putty or in- sulation material(procured locally)to stop up all gaps,as shown in the figure 3.
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Page 18: Leakage Test And Evacuation
LEAKAGE TEST AND EVACUATION LEAKAGE TEST AND EVACUATION Air and moisture remaining in the refrigerant CAUTION system have undesirable effects as indicated below. To avoid nitrogen entering the refrigerant - Pressure in the system rises. system in a liquid state, the top of the cylinder must be higher than its bottom - Operating current rises. -
Page 19: Evacuation
LEAKAGE TEST AND EVACUATION Evacuation Indoor unit Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo and Hi" knob of the mani- fold valve is open. Then, run the vacuum pump. -
Page 20: Wiring Connection
WIRING CONNECTION WIRING CONNECTION Electrical Wiring Outdoor unit - Remove the control cover for wiring connec- - All wiring must comply with local require- tion. ments. - Use the cord clamp to fix the cable. - Select a power source that is capable of sup- plying the current required by the air condi- - Earthing work tioner. -
Page 21: Connecting Cables To The Indoor Unit
WIRING CONNECTION Connecting cables to the In- Clamping of cables door Unit - Arrange two power cables on the control panel. - Connect the wires to the terminals on the - First, fasten the clamp with a screw to the control board individually according to the inner boss of control panel. - Page 22 WIRING CONNECTION 10±3mm NORMAL CROSS-SECTIONAL AREA 1.0mm CAUTION • The connecting cable connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cable set complying with the national regulation.) •...
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Page 23: Connecting The Cable To The Outdoor Unit
WIRING CONNECTION Connecting the cable to the Outdoor Unit - Remove the side panel from the unit by loosing screws. Connect the wires to the terminals on the control board individually as previous page. - Secure the cable onto the control board with the holder (clamp). - Refix the cover control to the original position with the screw. -
Page 24: Forming The Piping
FORMING THE PIPING FORMING THE PIPING Form the piping by wrapping the connect- In cases where the Outdoor unit is installed ing portion of the indoor unit with insula- above the Indoor unit perform the follow- tion material and secure it with two kinds ing. -
Page 25: Remote Controller Installation
REMOTE CONTROLLER INSTALLATION REMOTE CONTROLLER INSTALLATION Point of remote controller in- Put the installation paper on the place and de- termine the position and height of the fixing stallation screws of the deluxe wired remote controller. - Refer to the printed side of the installation - Although the room temperature sensor is in paper. -
Page 26: Locations For Remote Controller
REMOTE CONTROLLER INSTALLATION Locations for remote controller - Since the room temperature sensor is in the remote controller, the remote controller box should be installed in a place away from direct sunlight, high humidity and direct supply of cold air to maintain proper space temperature. -
Page 27: External Static Pressure & Flow
EXTERNAL STATIC PRESSURE & FLOW EXTERNAL STATIC PRESSURE & FLOW External Static Pressure Air flow Step Model (Low E.S.P) (High E.S.P) (l/s) High 30kBtu/h High 36kBtu/h High 42kBtu/h High 55kBtu/h NOTE Capacities are tested in the following conditions. Temperaure(°C DB/°C WB) Static Voltage Air Flow... - Page 28 EXTERNAL STATIC PRESSURE & FLOW How to set RPM Press button to appear button on the screen. mode. Press the button for 3secs. Press the button. Set the volume of each air flow 100 unit 10 unit ( LOW→MID→HI) by using the button.
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Page 29: Test Running
TEST RUNNING TEST RUNNING Precaution in test running Connection of power supply - The initial power supply must provide at least Connect the power supply cable to the in- 90% of the rated voltage. dependent power supply. Otherwise, the air conditioner should not be - Circuit breaker is required. - Page 30 TEST RUNNING 8) Never fail to equip a leakage breaker where it is wet or moist. 9) The following troubles would be caused by voltage drop-down. - Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the normal function of a overload protection device.
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Page 31: Self-Diagnosis Function
SELF-DIAGNOSIS FUNCTION SELF-DIAGNOSIS FUNCTION Indoor Unit Error Ex) Error 03 (Remote controller error) 3 Times 3 Times 3 Times LED02G LED1 (GREEN) 2 Sec. 2 Sec. LED2 LED 1 LED 2 Indoor Error Code Description (Green) (Red) status 1time ◑ Indoor Room sensor error 2times ◑... -
Page 32: Outdoor Unit Error
SELF-DIAGNOSIS FUNCTION Outdoor Unit Error Ex) Error 21 (DC Peak) 2 Times 2 Times 2 Times LED01G (RED) 1 Sec. 1 Sec. 1 Sec. 1 Time 1 Time 1 Time LED02G (GREEN) 2 Sec. 2 Sec. LED2 LED1 LED2 B30AWYU4G4 LED1 B36AWYU4G4, B42/55AWYU3G4 LED 1... -
Page 33: Dip Switch Setting
DIP SWITCH SETTING DIP SWITCH SETTING Indoor PCB (Initial condition is all off) Function Description Setting Off Setting On Default Communica- Communication Between Non Com- Communication tion Indoor & Outdoor munication Cycle Cooling or Heating Model Selection of Master or SW3 Group Control Master Slave... -
Page 34: Accessory Installa
ACCESSORY INSTALLATION GUIDE ACCESSORY INSTALLATION GUIDE(PQDSB1) Dry Contact(Only AC 24V) - Fix dry contact on the indoor control box Indoor PCB cover. - Connect dry contact(CN-CC) to Indoor Control box PCB(CN-CC) with cable provided. - Use the DC line hole when connecting the cable to indoor PCB.(Figure 2). - Page 35 ACCESSORY INSTALLATION GUIDE Installation of PI485 for 30k(PMNFP14A0) • Fix PI485 to the bracket in the outdoor control box.(Figure 2) • Connect PI485 to outdoor PCB and central controller with cable.(Figure 1,2) - Connect CN-PWR to CN_CP(N) and CN_CP(L) - Connect CN-OUT to CN_CENTRAL. •...
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Page 36: Installation Of Pi485 For 36K/42K/55K
ACCESSORY INSTALLATION GUIDE Installation of PI485 for 36k/42k/55k(PMNFP14A0) • Fix PI485 to the bracket in the outdoor control box.(Figure 2) • Connect PI485 to outdoor PCB and central controller with cable.(Figure 1,3) - Connect CN-PWR to CN_CP(N) and CN_CP(L) - Connect CN-OUT to CN_CENTRAL. •... -
Page 37: Rf Remote Controller
ACCESSORY INSTALLATION GUIDE RF Remote Controller(PQRFA0) - Connect Indoor PCB(CN-DISPLAY) to RF re- Double coated Indoor PCB mote controller with the cable provided. tape RF remote - Use the DC line hole when connecting the Control box controller cable to Indoor PCB. - Fix the RF remote controller with adhesive tape at your desired location. -
Page 38: Damper Controller
ACCESSORY INSTALLATION GUIDE Damper Controller(PBZC80) - Open the cover of indoor unit control box and damper controller(Figure 1) - Assemble the damper controller to cover which is seperated. - Connect the lead wires between main PCB and damper controller.(Figure 2) - Connect the power cord to damper controller and actuator.(Figure 3) - Assemble the damper controller to indoor unit and then assemble cover of damper controller. -
Page 39: Remote Temperature Sensor
ACCESSORY INSTALLATION GUIDE Remote Temperature Sensor(PQRSTA0) - After deciding where the remote temperature sensor is installed, decide the location and height of the fixing screws. (Interval between the screws : 60mm). Fixing - After removing the control box cover of the indoor unit, 60mm screws remove the room temperature sensor in CN-ROOM of the main PCB. -
Page 40: Two Wired Remote Controller
ACCESSORY INSTALLATION GUIDE Two wired remote controller - All wired remote controllers are displayed on identical information. - Last used wired romote controller has priority on product's movement. - Set one wired remote controller as master,the others as slave.(Figure 1) - The thermistor mode is operated by the wired remote controller set as "master"... -
Page 41: Installation Guide At The Seaside
INSTALLATION GUIDE AT THE SEASIDE INSTALLATION GUIDE AT THE SEASIDE In case, to install the outdoor unit on the sea- CAUTION side, set up a windbreak not to be exposed to the sea wind. • Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.