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Related Manuals for LG UBN24R
Summary of Contents for LG UBN24R
- Page 1 OWNER’S MANUAL CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. CEILING CASSETTE, CEILING CONCEALED DUCT Original instruction www.lg.com MFL67870342 Rev.00_011119 Copyright © 2019 LG Electronics Inc. All Rights Reserved.
- Page 2 IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS The following symbols are displayed on indoor and outdoor units. Read the precautions in this manual This appliance is filled with carefully before operating the unit. flammable refrigerant (R32) This symbol indicates that a service This symbol indicates that the personnel should be handling this Operation Manual should be read...
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS • Do not modify or extend the power cable. - If the power cable or cord has scrathes or skin peeled off or deteriorated then it must be replaced. There is risk of fire or electric shock. •... - Page 4 IMPORTANT SAFETY INSTRUCTIONS • Be sure to use only those parts which are listed in the svc parts list. - Never attempt to modify the equipment. The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire. •...
- Page 5 IMPORTANT SAFETY INSTRUCTIONS • Compliance with national gas regulations shall be observed. • Mechanical connections shall be accessible for maintenance purposes. CAUTION • Two or more people must lift and transport the product. - Avoid personal injury. • Do not install the product where it will be exposed to sea wind (salt spray) directly. - It may cause corrosion on the product.
- Page 6 IMPORTANT SAFETY INSTRUCTIONS • Do not mix air or gas other than the specified refrigerant used in the system. - If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury. • If the refrigerant gas leaks during the installation, ventilate the area immediately. - Otherwise it can be harmfull for your health.
- Page 7 IMPORTANT SAFETY INSTRUCTIONS • This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
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Page 8: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS INSTALLATION TOOLS INSTALLATION PLACES Installation Places for Indoor unit Installation Places for Outdoor Unit Installation Guide at the Seaside Seasonal Wind and Cautions in Winter THE INDOOR UNIT INSTALLATION Position of Suspension Bolt Heat Insulation Indoor Unit Drain Piping WIRING CONNECTION... - Page 9 TABLE OF CONTENTS DIP SWITCH SETTING FOR INDOOR UNIT DIP SWITCH SETTING FOR OUTDOOR UNIT DIP S/W Setting Pump Down Saving Power Consumption Night Quiet Mode Mode Lock TIPS FOR SAVING ENERGY BEFORE USE About the system Preparing for operation Usage Cleaning and maintenance Service...
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Page 10: Installation Tools
INSTALLATION TOOLS INSTALLATION TOOLS Figure Name Figure Name Screw driver Multi-meter Electric drill Hexagonal wrench Measuring tape, Knife Ammeter Hole core drill Gas-leak detector Thermometer, Spanner Level Torque wrench Flaring tool set more than 30cm more than 30cm... -
Page 11: Installation Places
INSTALLATION PLACES INSTALLATION PLACES Installation Places for Indoor unit - There should not be any heat source or steam near the unit. - There should not be any obstacles to prevent the Top view air circulation. (unit: mm) - A place where air circulation in the room will be Inspection hole 600 x 600 good. - Page 12 INSTALLATION PLACES Minimum floor area (for R32) - The appliance shall be installed, operated and stored in a room with a floor area larger than the minimum area. - Use the graph of table to determine the minimum area. Amin (m Floor standing Wall mounted Ceiling mounted...
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Page 13: Installation Places For Outdoor Unit
INSTALLATION PLACES Installation Places for Outdoor Unit You need to select adequate installation location considering the following conditions, and make sure to acquire the consent of the user. A > 200 mm - If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that CAUTION heat radiation from the condenser is not... -
Page 14: Installation Guide At The Seaside
INSTALLATION PLACES Installation Guide at the In case, to install the outdoor unit on the seaside, set up a windbreak not to be Seaside exposed to the sea wind. CAUTION Windbreak • Air conditioners should not be installed in areas where corrosive gases, such as Sea wind acid or alkaline gas, are produced. -
Page 15: The Indoor Unit Installation
THE INDOOR UNIT INSTALLATION THE INDOOR UNIT INSTALLATION Position of Suspension Bolt Ceiling Cassette Type - Select and mark the position for fixing bolts and Ceiling piping hole. - Decide the position for fixing bolts slightly tilted to Level gauge the drain direction after considering the direction of drain hose. - Page 16 THE INDOOR UNIT INSTALLATION Ceiling Concealed Duct Type - Mid Ceiling Keep the static length of the bolt from the bracket - Apply a joint-canvas between the unit and to 40 mm Air Conditioner body duct to absorb unnecessary vibration. Ceiling board - Apply a filter Accessory at air return hole.
- Page 17 THE INDOOR UNIT INSTALLATION Position of console Bolt • Local supply ① Set anchor - A place where the unit will be leveled and ② Plate washer - M10 that can support the weight of the unit. ③ Spring washer - M10 - A place where the unit can withstand its ④...
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Page 18: Heat Insulation
THE INDOOR UNIT INSTALLATION Heat Insulation Upward Pipe clamp routing - Use the heat insulation material for the not allowed refrigerant piping which has an excellent Indoor unit heat-resistance (over 120 °C). - Precautions in high humidity circumstance: This air conditioner has been tested according Maintenance to the "KS Standard Conditions with Mist"... -
Page 19: Wiring Connection
WIRING CONNECTION WIRING CONNECTION Electrical Wiring - All wiring must comply with local requirements. - Select a power source that is capable of Control box cover supplying the current required by the air (On which the Electric conditioner. Wiring Connection is put) - Use a recognized circuit breaker between the power source and the unit. -
Page 20: Connecting Cables To The Unit
WIRING CONNECTION CAUTION CAUTION • Make sure that the screws of the • The circuit diagram is not subject to terminal fixed tightly change without notice. • Installation work must be performed in • Be sure to connect wires according to accordance with the national wiring the wiring diagram. -
Page 21: Connecting Cables To The Outdoor Unit
WIRING CONNECTION It is forbidden to It is forbidden to CAUTION connect two to one connect wiring of side. different thicknesses. The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (This equipment shall be provided with a cord set complying with the national regulation). -
Page 22: Connecting Pipes
CONNECTING PIPES CONNECTING PIPES Preparation of Piping - Main cause of gas leakage is defect in flaring Copper Slanted Uneven Rough work. Carry out correct flaring work in the tube 90 ° following procedure. - Use the de-oxidised copper as piping materials to install. -
Page 23: Connecting The Pipings To The Indoor Unit And Drain Hose To Drain Pipe
CONNECTING PIPES Connecting the pipings to the Wrap the insulation material around the connecting portion. indoor unit and drain hose to drain pipe Overlap the connection pipe insulation material and the indoor unit pipe insulation - Align the center of the pipings and material. -
Page 24: Connection Of Piping - Outdoor
CONNECTING PIPES Connection of piping - Outdoor Preventing foreign objects from entering (Figure3) - Align the center of the piping and sufficiently - Plug the pipe through-holes with putty or tighten the flare nut by hand. insulation material(procured locally)to stop up - Finally, tighten the flare nut with torque all gaps,as shown in the figure 3. -
Page 25: Forming The Piping
CONNECTING PIPES Forming the piping In cases where the Outdoor unit is installed above the Indoor unit perform the following. Form the piping by wrapping the connecting Tape the piping and connecting cable from portion of the indoor unit with insulation down to up. -
Page 26: 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) refrigerant (kBtu/h) (g/m) Liquid Standard Max. Standard Max. Ø 15.88 (5/8) Ø 9.52 (3/8) Ø 15.88 (5/8) Ø 9.52 (3/8) Ø 15.88 (5/8) Ø 9.52 (3/8) If installed tube is shorter than 7.5 m, additional charging is not necessary Additional Refrigerant = (A - 7.5) x Additional refrigerant (g) Outdoor unit... -
Page 27: Installation Of Decorative Panel(Accessory)
INSTALLATION OF DECORATIVE PANEL(ACCESSORY) INSTALLATION OF DECORATIVE PANEL(ACCESSORY) Insert two screws on diagonal corners of The decorative panel has its installation panel. Do not tighten the bolts completely. direction. (The fixing screws are included in the Before installing the decorative panel, indoor unit box.) always remove the paper template. - Page 28 INSTALLATION OF DECORATIVE PANEL(ACCESSORY) Open two screws of control panel cover. Install the air inlet grille and Filter on the panel. Screw Connect one display connector and two vane control connectors of front panel to indoor unit PCB. The position marking on PCB is as: CAUTION Display connector : CN-DISPLAY Vane control connector: CN-VANE 1,2...
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Page 29: Leakage Test And Evacuation
LEAKAGE TEST AND EVACUATION LEAKAGE TEST AND EVACUATION Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. - Pressure in the system rises. - Operating current rises. - Cooling (or heating) efficiency drops. - Moisture in the refrigerant circuit may freeze and block capillary tubing. - Water may lead to corrosion of parts in the refrigeration system. -
Page 30: Evacuation
LEAKAGE TEST AND EVACUATION Indoor unit Do a leakage test of all joints of the tubing (both Indoor unit and outdoor unit) and Outdoor unit both gas and liquid side service valves. Bubbles indicate a leak. Be sure to wipe off the soap with a clean cloth. -
Page 31: Test Running
TEST RUNNING TEST RUNNING Precautions In Test Running - The initial power supply must provide at least 90 % of the rated voltage. Otherwise, the air conditioner should not be operated. CAUTION • For test run, carry out the cooling operation firstly even during heating season. If heating operation is carried out firstly, it leads to the trouble of compressor. - Page 32 TEST RUNNING 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.
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Page 33: Installation Pi485
INSTALLATION PI485 INSTALLATION PI485 Fix the PI485 PCB as shown in below images. For detailed installation method refer to PI485 Installation Manual. 24 k 36 / 48 k... -
Page 34: External Static Pressure
EXTERNAL STATIC PRESSURE EXTERNAL STATIC PRESSURE * Only for ceiling concealed duct type Static Pressure[mmAq(Pa)] 2(20) 2.5(25) 3(29) 4(39) 6(59) 8(78) 10(98) 12(118) 13(127) 14(137) 15(147) Capacity Step CMM (kBtu/h) Setting Value 32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11 LOW 14.5 16.5 HIGH... -
Page 35: Self-Diagnosis Function
SELF-DIAGNOSIS FUNCTION SELF-DIAGNOSIS FUNCTION Indoor Unit Error Code Title Cause of Error Air temperature sensor of Indoor unit Air temperature sensor of indoor unit is open or short Inlet pipe temperature Sensor of indoor Inlet pipe temperature sensor of indoor unit is open unit or short Communication error : wired remote... -
Page 36: Outdoor Unit Error
SELF-DIAGNOSIS FUNCTION Outdoor Unit Error 2 Times 2 Times 2 Times LED01G (RED) 1 second 1 second 1 second 1 Time 1 Time 1 Time LED02G (GREEN) 2 seconds 2 seconds Standard Inverter : 24 k Standard Inverter : 36 / 48 k Error Display Error Display Operation... -
Page 37: Dip Switch Setting For Indoor Unit
DIP SWITCH SETTING FOR INDOOR UNIT DIP SWITCH SETTING FOR INDOOR UNIT Ceiling Cassette Type Ceiling Concealed Duct Type DIP Switch Function Description Setting Off Setting On Default Selection of Master Group Control Master Slave or Slave Wired/Wireless remote Dry Contact Selection of Dry controller Auto... -
Page 38: Dip Switch Setting For Outdoor Unit
DIP SWITCH SETTING FOR OUTDOOR UNIT DIP SWITCH SETTING FOR OUTDOOR UNIT DIP S/W Setting If you set the DIP Switch when power is on, the change in setting is not applicable. The changing setting is enabled only when Power is reset. DIP Switch Function Normal Operation (No Function) -
Page 39: Pump Down
DIP SWITCH SETTING FOR OUTDOOR UNIT Pump Down Setting Procedure Set the DIP Switch as follow after shutting the power source down. 9 10 24 k 36 / 48 k Reset the power. Red LED and Green LED of PCB lights during work. (The indoor unit is operated by force.) If operation is done, Red LED will be turned off. -
Page 40: Saving Power Consumption
DIP SWITCH SETTING FOR OUTDOOR UNIT Saving Power Consumption Saving Power Consumption operation is the function which enables efficient operation by lowering the maximum power consumption value. Power consumption Nomal and current Time Setting Procedure Set the DIP Switch as follow after shutting the power source down. 24 k 24 k 36 / 48 k... -
Page 41: Night Quiet Mode
DIP SWITCH SETTING FOR OUTDOOR UNIT 24 k 24 k 36 / 48 k 36 / 48 k Saving Power Consumption (step 2) Saving Power Consumption (step 2) + Mode Lock (Cooling) + Mode Lock (Heating) Night Quiet Mode Night Quiet Mode operation lowers the noise level of the outdoor unit by changing the Compressor’s frequency and fan speed. -
Page 42: Mode Lock
DIP SWITCH SETTING FOR OUTDOOR UNIT Night Quiet Mode with Mode Lock. 24 k 24 k 36 / 48 k 36 / 48 k Mode Lock (Cooling) Mode Lock (Cooling) + Night Quiet Mode (step 1) + Night Quiet Mode (step 2) CAUTION •... - Page 43 DIP SWITCH SETTING FOR OUTDOOR UNIT Mode Lock with Night Quiet Mode 24 k 24 k 36 / 48 k 36 / 48 k Mode Lock (Cooling) Mode Lock (Cooling) + Night Quiet Mode (step 1) + Night Quiet Mode (step 2) Saving Power Consumption with Mode Lock.
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Page 44: Tips For Saving Energy
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: •... -
Page 45: Before Use
BEFORE USE BEFORE USE About the system This system of air conditioner can be used for heating/cooling applications. Preparing for operation • Contact an installation specialist for installation. • Use a dedicated circuit. Usage • Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for extended periods of time. -
Page 46: Product Introduction
PRODUCT INTRODUCTION PRODUCT INTRODUCTION Name and function of parts (CEILING CASSETTE) 1: Indoor unit 2: Outdoor unit 3: Inlet air 4: Discharge air 5: Refrigerant piping, connection electric wire 6: Drain pipe 7: Ground wire Wire to ground outdoor unit to prevent electrical shocks. -
Page 47: Model Designation
PRODUCT INTRODUCTION Model designation Airborne Noise Emission Product information – Indoor Unit The A-weighted sound pressure emitted by this product is below 70 dB. - Product Name : Air conditioner ** The noise level can vary depending on the - Model Name : site. -
Page 48: Operation Indicator Lamp
PRODUCT INTRODUCTION Operation Indicator Lamp Lamp Forced operation Button Description Lamp Color Cooling mode Green Heating mode Green Time to clean filter in cooling/heating Mode Yellowish Green Time to clean filter when product is not operating Orange Hot start or defrost mode before starting heating mode Green When reservation set on Yellowish Green... -
Page 49: Maintenance And Service
MAINTENANCE AND SERVICE MAINTENANCE AND SERVICE CAUTION - Never use any of the followings: Water hotter than 40 °C. Could cause deformation and/or discoloration. Before performing any maintenance, turn off the main power to the system. Volatile substances. Could damage the surfaces of the air conditioner. -
Page 50: Purifying Filter(Optional)
MAINTENANCE AND SERVICE Purifying filter(Optional) Replacement - Recomended use period : About 2 years Cleaning Open front panel and remove air filter. The PLASMA filter behind the air filters should be checked and cleaned once every 3 months or more often if necessary. Remove air purifying filter. -
Page 51: Operation Tips
MAINTENANCE AND SERVICE Operation Tips! Do not overcool the room. Keep blinds or curtains Keep the room temperature closed. uniform. This is not good for the health and wastes electricity. Do not let direct sunshine enter Adjust the vertical and the room when the air horizontal airflow direction to conditioner is in operation. -
Page 52: Troubleshooting Tips! Save Time And Money
MAINTENANCE AND SERVICE Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service..If the malfunction persist, please contact your dealer. Case Explanation • Have you made a mistake in timer operation? The air conditioner does not operate. - Page 53 MAINTENANCE AND SERVICE...