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LG Multi V CRUN Series Installation Manual

Outdoor unit
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Heat Pump Outdoor Unit
INSTALLATION MANUAL
MODELS: CRUN Series
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
System
IMPORTANT
• 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.
LG

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Summary of Contents for LG Multi V CRUN Series

  • Page 1 website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html System Heat Pump Outdoor Unit INSTALLATION MANUAL MODELS: CRUN Series IMPORTANT • 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.

  • Page 2: Table Of Contents

    CRUN Series Outdoor Unit Installation Manual TABLE OF CONTENTS Safety Precautions......3 Installation Process .....10 Combination of indoor and Outdoor Units.......11 Selection the Best Location..12 Installation Space ......13 Lifting Method ......16 Installation ........17 Refrigerant Pipe Installation ..19 Elecrical wiring......33 Test Run........45 Appendix........50 System Check List .......58 Outdoor Unit...

  • Page 3: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Be sure to read before installing the air conditioner. Be sure to observe the cautions specified here as they include important items related to safety. Incorrect operation due to ignoring instruction will cause harm or damage.
  • Page 4 - Improper installation may cause the unit to top- erate heat and cause a fire. ple and result in injury. Always use accessories specified by LG Never repair the unit. If the air conditioner Electronics. must be repaired, consult the dealer.
  • Page 5 Safety Precautions Install the air conditioner according to this Have all electric work done by a licensed Installation Manual. electrician according to "Electric Facility Engineering Standard" and "Interior Wire Regulations" and the instructions given in this manual and always use a special circuit. - If the unit is installed improperly, water leakage, - If the power source electric shock, or fire may result.
  • Page 6 LG Electronics are used, fire or explosion may result. Cautions before installation Site Do not install the unit where combustible gas Do not use the air conditioner where food, may leak.
  • Page 7 Safety Precautions Do not install the outdoor unit at the outside Do not install the unit beside or on the footway of apartment balcony or veranda or the site which may be flooded or submerged and may of the same installation condition be an obstructions for pedestrians to walk.
  • Page 8 Safety Precautions Use only a circuit breaker and fuse of the Do not wash the air conditioner units. specified capacity. - A fuse or circuit breaker of a larger capacity or a - Washing them may cause an electric shock. steel or copper wire may result in a general unit failure or fire.
  • Page 9 Safety Precautions Cautions before the test run Turn on the power at least 12 hours before Do not touch the switches with wet fingers. starting operation. - Starting operation immediately after turning on - Touching a switch with wet fingers can cause an the main power switch can result in severe dam- electric shock.

  • Page 10: Installation Process

    Installation Process Installation Process Indicate clearly who is to be responsible for switch settings. Determination of division work Make relationship between outdoor, indoor, remote controller, Preparation of contract drawings and option connections clear.(Prepare control circuit diagram) Sleeve and insert work Take account of gradient of drain piping.

  • Page 11: Combination Of Indoor And Outdoor Units

    Combination with indoor and Outdoor Units Combination with indoor and Outdoor Units - The total capacity index of indoor units is the sum of capacity index of each units and should be within the capacity index of the outdoor unit. Model Name of Outdoor Unit Range of Total Capacity Index CRUN458S0...

  • Page 12: Selection The Best Location

    Select the Best Location Select the Best Location Select space for installing outdoor unit, which will meet the following conditions: • No direct thermal radiation from other heat sources • No possibility of annoying the neighbors by noise from unit •...

  • Page 13: Installation Space

    Installation Space Installation Space Individual Installation For CRUN1008T0 Basic space required A space of at least 250 mm is necessary at the back for inlet air. Taking servicing, etc. from the rear into account, a space of about 500 mm should be provided, the same as at the front. 250 mm or more 500 mm or more Front panel...
  • Page 14 Installation Space When there is an obstruction above the unit 45° or more 300 mm or more 250 mm or more 1000 mm or more Air outlet guide (Procured at the site) 250 mm or more For CRUN458S0 • If an awning is built over the unit to prevent direct sunlight or rain exposure, be careful that heat radi- ation from the condenser is not restricted.
  • Page 15 Installation Space Collective / Continuous installation Space required for collective installation and continuous installation:When installing several units, leave the space between each block as shown below considering passage for air and people. 150 mm or more (Must be open) 250 mm or more Front(panel side) 500 mm or more 600 mm or more...

  • Page 16: Lifting Method

    Lifting Method Lifting method • When carrying the unit suspended, pass the ropes under the unit and use the two suspension points each at the front and rear. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. •...

  • Page 17: Installation

    Installation Installation Location of anchor bolt CRUN1008T0 • Individual installation 797±2 • Example of collective installation 797±2 797±2 797±2 Installation foot Installation Manual 17...
  • Page 18 Installation Foundation for Installation CRUN1008T0 • Fix the unit tightly with bolts as shown below so that unit will not fall down due to earthquake or gust. • Use concrete or angle for foundation of unit. • Vibration may be transmitted to the installation section and noise and vibration may be generated from the floor and walls, depending on the installation conditions.

  • Page 19: Refrigerant Pipe Installation

    Refrigerant piping installation Refrigerant piping installation The method of connection consists of flare connections at the indoor units, brazing connections for the piping of the outdoor unit. Note that the branched sections are brazed. WARNING Always use extreme care to prevent the refrigerant gas (R407C) from the leakage while using fire or flame.
  • Page 20 Refrigerant piping installation 9. Always use good-quality materials for brazing. 10. The Multi V Series will stop due to an abnormality like excessive or insufficient refrigerant. At such a time, always properly charge the refrigerant to the system. When servicing, always check the notes concerning pipe length and amount of additional refrigerant at both locations.
  • Page 21 Refrigerant piping installation Refrigerant piping system Y branch method CRUN458S0 Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : indoor units : downward indoor unit L 70m l 30m Piping diameter (A) - Liquid pipe : Ø12.7mm(1/2 inch) - Gas pipe : Ø19.05mm(3/4 inch) Refrigerant pipe diameter from branch to branch (B,C,D)
  • Page 22 Refrigerant piping installation CRUN1008T0 Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : indoor units : downward L 100m indoor unit l 30m Piping diameter (A) - Liquid pipe : Ø15.88mm(5/8 inch) - Gas pipe : Ø28.58mm(9/8 inch) Refrigerant pipe diameter from branch to branch (B,C,D) Liquid pipe...
  • Page 23 Refrigerant piping installation Header Method CRUN458S0 Example : 6 indoor units connected : outdoor unit : 1st branch : indoor units : sealing L 70m l 30m Piping diameter (A) Branch pipe can not be used - Liquid pipe : Ø12.7mm(1/2 inch) after header - Gas pipe : Ø19.05mm(3/4 inch)
  • Page 24 Refrigerant piping installation CRUN1008T0 Example : 6 indoor units connected : outdoor unit : 1st branch : indoor units : sealing L 100m l 30m Piping diameter (A) Branch pipe can not be used - Liquid pipe : Ø15.88mm(5/8 inch) after header - Gas pipe : Ø28.58mm(9/8 inch)
  • Page 25 Refrigerant piping installation Combination of Y branch/header method CRUN458S0 Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : Y branch : indoor unit : header : sealing L 70m : downward l 30m indoor unit Piping diameter (A) Branch pipe can not be used - Liquid pipe : Ø12.7mm(1/2 inch)
  • Page 26 Refrigerant piping installation CRUN1008T0 Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : Y branch : indoor unit : header : sealing L 100m : downward indoor unit l 30m Piping diameter (A) Branch pipe can not be used - Liquid pipe : Ø15.88mm(5/8 inch) after header - Gas pipe...
  • Page 27 Refrigerant piping installation Indoor Unit Connection L 100m L 70m l 30m l 30m Total pipe length ≤ 220m Total pipe length ≤ 100m Indoor unit connecting pipe from branch (a,b,c,d,e) Liquid pipe Gas pipe Downward indoor unit total capacity [mm(inch)] [mm(inch)] [kW(Btu/h)]...
  • Page 28 Refrigerant piping installation The Amount of Refrigerant The calculation of the additional charge should take account of the length of pipe. CRUN1008T0 charge = 10.0kg CRUN458S0 charge = 3.5kg Additional charge (kg) Total liquid pipe (m): Ø15.88mm 0.2(kg/m) Total liquid pipe (m): Ø12.7mm 0.12(kg/m) Total liquid pipe (m): Ø9.52mm 0.06(kg/m)
  • Page 29 Refrigerant piping installation Branch pipe Fitting Y branch To Outdoor Unit To Branch Piping or Indoor Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Horizontal Facing upwards plane Within +/- 10° Viewed from point A in direction of arrow •...
  • Page 30 Refrigerant piping installation • When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches. Piched pipe •...
  • Page 31 Refrigerant piping installation Airtight Test and Evacuation (1) Airtight test Airtight test should be made by pressurizing nitrogen gas to 2.94 MPa. For the test method, refer to the following figure. (Make a test with the service valves closed. Be also sure to pressurize both liquid pipe and gas pipe.) The test result can be judged good if the pressure has not been reduced after leaving for about one day after completion of nitrogen gas pressurization.
  • Page 32 Refrigerant piping installation Thermal insulation of refrigerant piping Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves.

  • Page 33: Elecrical Wiring

    Electrical Wiring Electrical Wiring Areas of Caution 1. Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. WARNING Be sure to have authorized electric engineers do electric work using special circuits in accordance with regulations and this installation manual.
  • Page 34 Electrical Wiring Control box and connecting position of wiring - Remove all of the screws at front -upper panel, and remove the front panel by pulling it forward - Connect indoor and outdoor units through the terminal block for transmission lines. Outdoor units and connections to central control systems go through the sub PCB for central control.
  • Page 35 Electrical Wiring Transmission and Power Lines 1) Transmission cable • Types : shielding wire CVVS or CPEVS • Diameter : over 0.75mm • Insulation material : PVC • Maximum allowable temperature: 60°C • Maximum allowable line length: under 300m 2) Remote control cable •...
  • Page 36 Electrical Wiring Wiring of Main Power Supply and Equipment Capacity Schematic Drawing of Wiring (Example) A Power Supply (3-Phase, 4-Wire) 380/400/415 Volt E Power Supply (Single-Phase) 220/230/240 Volt B Switch F 1.5 mm or more C Outdoor Unit G Pull Box D Ground H Indoor Unit Minimum Wire Thickness (mm...
  • Page 37 Electrical Wiring Example Connection of Transmission Cable : 3 Phase power line Power supply switch (Switch/Fuse) : Single phase power line Power supply : Transmission line(2 wire) 3 phase 50Hz 380~415V Power supply 1 phase 50Hz 220~240V Outdoor Unit Control Box Central controller Indoor unit Vcc GND...
  • Page 38 Electrical Wiring Automatic Addressing • The address of indoor units would be set by Automatic addressing - CRUN1008T0 Press the switch(SW02M) of outdoor unit for 5 seconds 7-segment of Main PCB in outdoor unit : displays "88" 2~3 minutes passed after , the address of each indoor unit is displayed at each wired remote controller or display device of each indoor unit.
  • Page 39 Electrical Wiring The Procedure of Automatic Addressing CRUN458S0 Indoor address number is displayed on wired remote controller or indoor unit display window. It is not an error message. Address number will be disappeared when on/off button is pressed on remote controller. ex) Display of 01, 02, ..., 05 means connection of 5 indoor units and auto addressing is completed normally.
  • Page 40 Electrical Wiring CRUN1008T0 Indoor address number is displayed on wired remote controller or indoor unit display window. It is not an error message. Address number will be disappeared when on/off button is pressed on remote controller. ex) Display of 01, 02, ..., 15 means connection of 15 indoor units and auto addressing is completed normally.
  • Page 41 Electrical Wiring Group Number Setting for Indoor Units Confirm the power of whole system(indoor unit, outdoor unit) is OFF, otherwise turn off. The transmission lines connected to C, D of simple central controller should be connected to C,D terminal port for central control of outdoor unit with care for their polarity.(C C, D DC power line(12V) and ground line should be connected to terminal block of adjacent indoor unit.
  • Page 42 Electrical Wiring Wiring Diagram for Simple Central Controller Outdoor Unit 1 Control box Control Board < Group Number 0 > Central Controller Master Unit 1 SWITCH For Master the First switch of DIP switch should be ON and the other three switches can be On or Off (Don ’t Care Condition) The connection of Master and Slave Outdoor Unit 2 Control box...
  • Page 43 Electrical Wiring Position of rotary switch on the indoor unit Cassette, Duct, Convertible type indoor unit Group ID rotary S/W Indoor unit ID rotary S/W Wall mounted type indoor unit Group ID rotary S/W Indoor unit ID rotary S/W Artcool type indoor unit Group ID S/W Indoor unit ID rotary S/W Installation Manual 43...
  • Page 44 Electrical Wiring Group Control with Wired Remote Controller It operates maximum 16 Units by only one Wired Remote Controller, and each unit starts sequentially to prevent overcurrent. Main PCB Indoor Unit 1 Indoor Unit 2 Indoor Unit 16 Terminal(Local Supply) Terminal(Local Supply) Terminal(Local Supply) Block...

  • Page 45: Test Run

    Test Run Test Run Checks Before Test Run Content of parentheses ( ) is for CRUN458S0 Check to see whether there is any refrigerant leakage, and slack of power or transmission cable. Confirm that 500 V megger shows 2.0 (1.0) MΩ or more between power supply terminal block and ground.
  • Page 46 Test Run How to Cope with Test Run Abnormality The phenomena from main component failure Component Phenomenon Cause Check method and Trouble shooting Not operating Motor insulation broken Check resistance between terminals and chassis Strainer locking Service necessary Oil shortage Open drain cock and check oil Compressor Stop during running...
  • Page 47 Test Run Self-Diagnosis Function Error Indicator • The function is to self-diagnose airconditioner and indicate the problems, if any. • Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in the table. •...
  • Page 48 Test Run Error code 52, 53, 54, 56, 57 are applied only to CRUN1008T0 Display Title Cause of Error CT sensor open or short CT sensor Inverter compressor discharge pipe Inverter compressor dischare pipe sensor open or short sensor (discharge temperature) Low pressure sensor Low pressure sensor open or short High pressure sensor open or short...
  • Page 49 Test Run Position of the LED01Y in inverter board CRUN1008T0 Inverter board Installation Manual 49...

  • Page 50: Appendix

    Appendix Appendix Outdoor Unit...
  • Page 51 Appendix Piping Diagram CRUN458S0 Installation Manual 51...
  • Page 52 Appendix CRUN1008T0 Outdoor Unit...
  • Page 53 Appendix Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. 1) Cut the pipes and the cable. Use the accessory piping kit or the pipes purchased Copper Slanted Uneven Rough locally.
  • Page 54 Appendix Piping Connection 1. Form the piping according to its routing. Avoid bend- Liquid side ing and bending back the same piping point more than three times. (This will result in hardening the pipe.) Indoor unit 2. After deforming the piping, align centers of the union fitting of the indoor unit and the piping, and tighten Outdoor Flare connection...
  • Page 55 Appendix HEAT INSULATION 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C). Fastening band (accessory) 2. Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions with Mist" and confirmed that there is not any default.
  • Page 56 Appendix Drain Pipe Work 1. Drain pipe gradient and support 1) - The drain pipe must be fitted at a gradient of at least 1/100. - The drain pipe should be as short as possible and free from airlocks. Indoor unit Gradient of at least 1 / 100 (1cm/ 1m) 2) Suspension bolts should be used to support long stretches of drain pipe in order to ensure that a gradient...
  • Page 57 Appendix 3. Grouped drain piping 1) It is standard work practice to make connections to the main pipe from above. The pipe down from the combination should be as large as possible. Face piping Face the vent pipe mouth downward to keep downward foreign matter from penetrating he system Vent pipe...

  • Page 58: System Check List

    System Check List Checked date Delivered date Check ordered date System Check List Customer System name Outdoor unit Location Model Serial No. Optional equipment < Additional refrigerant charge > Remarks Installed by Checked by Outdoor Unit...
  • Page 59 System Check List Indoor unit Centralized Location Model Serial No. Field setting Optional equipment control group Installation Manual 59...
  • Page 60 System Check List INSPECTION Judge- STANDARD ACTUAL MEASUREMENT INSPECTION ITEM METHOD ment Breaker capacity Visual inspection Specified capacity Refrigerant Gas leak detector No leakage piping system No clogging or Heat exchanger Visual inspection Good damage Terminal Screwdriver, etc. No loosening Good connection Fan motor...
  • Page 61 System Check List Judge- INSPECTION STANDARD ACTUAL MEASUREMENT INSPECTION ITEM ment METHOD ±10% of rated Main power Tester source voltage voltage ±10% of rated Operation circuit Tester voltage voltage Fan rotation Positive Visual inspection Good direction direction Fan noise and Listen and touch None Good...
  • Page 62 Memo Outdoor Unit...

This manual is also suitable for:

Crun458s0Crun1008t0

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