MULTI F MULTI F MAX ART COOL™ MIRROR WALL-MOUNTED INDOOR UNIT INSTALLATION MANUAL • LAN090HSV4 9 kBtu • LAN120HSV4 12 kBtu • LAN180HSV4 18 kBtu
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MULTI F MULTI F MAX TABLE OF CONTENTS CONTENTS Safety Instructions ������������������������������������������������������������������������������������������������������������������������������������������� 4 Introduction ������������������������������������������������������������������������������������������������������������������������������������������������������ 9 Unit Nomenclature ���������������������������������������������������������������������������������������������������������������������
MULTI F MULTI F MAX SAFETY INSTRUCTIONS The instructions below must be followed to prevent product malfunction, property damage, injury or death to the user or other people. Incorrect operation due to ignoring any instructions will cause harm or damage. The level of seriousness is classified by the symbols below. Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit TABLE OF SYMBOLS DANGER This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
MULTI F MULTI F MAX SAFETY INSTRUCTIONS INSTALLATION – CONTINUED WARNING Properly insulate all cold surfaces to prevent “sweating.” Cold surfaces such as uninsulated pipe can generate condensate that may drip and cause a slippery floor conditio that may lead to accidents (like falling), causing an injury. CAUTION Be very careful when transporting the product. Note: Periodically check that the outdoor unit is not damaged. Properly insulate all cold surfaces to prevent “sweating.
MULTI F MULTI F MAX SAFETY INSTRUCTIONS WIRING DANGER High voltage electricity is required to operate this system. Adhere to the National Electrical Codes and these instructions when wiring. Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Improper connections and inadequate grounding can cause accidental injury or death. Always ground the unit following local, state, and National Electrical Codes.
MULTI F MULTI F MAX SAFETY INSTRUCTIONS OPERATION DANGER Do not provide power to or operate the unit if it is flooded or submerged. There is risk of fire, electric shock, physical injury or death. Use a dedicated power source for this product. There is risk of fire, electric shock, physical injury or death. Do not operate the disconnect switch with wet hands. There is risk of fire, electric shock, physical injury or death. WARNING Do not allow water, dirt, or animals to enter the unit.
Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit MULTI F MULTI F MAX 8 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MULTI F MULTI F MAX INTRODUCTION Multi F and Multi F MAX Art Cool™ Mirror Wall-Mounted Units This manual describes how to install the LG Multi F and Multi F MAX (Multi Zone) Art Cool Mirror Wall-Mounted Indoor Units (IDU) for Multi F heat pump systems. Table 1 lists the available models. Refer to LG’s Multi F Indoor Unit Engineering Manual for complete detailed engineering data and selection procedures. Safety Safety of personnel is the primary concern during all procedures.
MULTI F MULTI F MAX INTRODUCTION Table 1: Multi F Art Cool Mirror Wall-Mounted Indoor Units Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Typical Unit Model Number Nominal Capacity Cooling (Btu) Heating (Btu) LAN090HSV4 9,000 10,400 LAN120HSV4 12,000 13,800 LAN180HSV4 18,000 20,800 Table 2: Included Items Part Quantity Installation Plate One (1) Image 9,000 ~ 12,000 Btu/h Indoor Units 10 Type “A” Screws Five (5) Type “B” Screws (M4 x 12L) Two (2) Wireless Controller with Hold
MULTI F MULTI F MAX UNIT NOMENCLATURE Multi F Multi-Zone Systems — Indoor Units L A N 090 HSV 4 L = LG Type: M = Multi-Zone A / S = Single Zone (Gen 4 Single Zone units also compatible with Multi Zone) Component: AN: Art Cool™ Wall-Mounted Indoor Unit Installation Manual N: Standard Wall-Mounted Indoor Unit CN: Four-Way Ceiling-Cassette Indoor Unit DN: Ceiling-Concealed Duct (Low Static) Indoor Unit HN: Ceiling-Concealed Duct (High Static) Indoor Unit VN: Vertical-Horizontal Air Handling Indoor Un
MULTI F MULTI F MAX GENERAL DATA R410A Refrigerant R410A refrigerant has a higher operating pressure in comparison to R22 refrigerant and, therefore, all piping system materials installed must have a higher resisting pressure than the materials traditionally used in R22 systems. R410A refrigerant is an azeotrope of R32 and R125, mixed at 50:50, so the ozone depletion potential (ODP) is 0. WARNING Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Do not place refrigerant cylinder in direct sunlight.
MULTI F MULTI F MAX GENERAL DATA Specifications Table 4: Multi F Multi Zone Art Cool Mirror Wall-Mounted Indoor Unit Specifications Model Name LAN090HSV4 LAN120HSV4 LAN180HSV4 Nominal Cooling Capacity (Btu/h)1 9,000 12,000 18,000 Nominal Heating Capacity (Btu/h) 10,400 13,800 20,800 1 Operating Range Cooling (°F WB) Heating (°F DB) 57-77 59-81 Fan Type Cross Flow Motor Output (W) x Qty. Motor/Drive Airflow Rate CFM (H/M/L) 14.4 x 1 76.
MULTI F MULTI F MAX GENERAL DATA Figure 2: LAN090-120-180HSV4 Refrigerant Piping Diagram Gas pipe connection port (flare connection) Cooling Heating Cross Flow Fan Thermistor for Evaporator Outlet Temperature M Thermistor for Evaporator Inlet Temperature Thermistor for Indoor Air Temperature Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Heat Exchanger Liquid pipe connection port (flare connection) Table 5: Multi F Multi Zone Art Cool Mirror Wall-Mounted Indoor Unit Refrigerant Pipe Connect
MULTI F MULTI F MAX GENERAL DATA Typical Multi F/Multi F Max Systems Major System Components A typical Multi F system consists of an outdoor unit (ODU), refrigerant piping, and two (2) to four (4) indoor units (IDUs). The Art Cool Mirror wall-mounted units described in this manual are one of the types of IDUs that can be connected to a Multi F system. A typical Multi F Max system consists of an ODU, refrigerant piping, one or two branch distribution units (BDU), and two (2) to eight (8) IDUs.
MULTI F MULTI F MAX GENERAL DATA Typical Multi F/Multi F Max Systems Typical Multi F MAX System with Two Branch Distribution Units ODU A Y-Branch IDU: Indoor Unit. A BD: Branch Distribution Unit(s). ΣA: Main Piping. IDU B IDU h4 ≤ 49.2 feet ΣB: Branch Piping (Branch Distribution Unit[s] to Indoor Unit[s]). IDU B B A BDU IDU B B h1 ≤ 98.4 feet h2 ≤ 49.
MULTI F MULTI F MAX GENERAL DATA Refrigerant Piping Requirements Field Supplied Refrigerant Piping Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi F products will be marked “R410 RATED” along the length of the tube. Tube wall thickness should meet local code requirements and be approved for a maximum operating pressure of 551 psi.
GENERAL INSTALLATION GUIDELINES Location Selection MULTI F MULTI F MAX DANGER To avoid the possibility of fire, do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. Installing the unit in an area containing combustible gas will cause serious bodily injury or death. Before beginning installation, read the safety summary at the beginning of this manual.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Inspection Unpack and Inspect for Freight Damage CAUTION Shipping and net weights of the wall-mounted units are listed in Table 4. To help avoid injury to personnel and damage to the unit, use two people when carrying a unit by hand. Note: Do not unpack the unit and remove the protective materials until ready to install. Before unpacking, carefully move the packaged unit to a work area near the installation location.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Install Wall-Mounted IDU Chassis • Mounting hardware must be securely installed to prevent the chassis falling from its installation location. There is risk of personnel injury or property damage from falling equipment. • When choosing a location for the wall mount plate, be sure to take into consideration routing of wiring for power outlets within the wall. Touching wiring can cause serious bodily injury or death.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Install Wall-Mounted IDU Chassis Drilling Piping Hole in the Wall Figure 6: Drilling Piping Hole WALL Indoor Use caution when drilling holes through walls. Drilling into power wiring in the wall can cause serious bodily injury or death. Bushing Sleeve 1. Using a 2-5/8 (ø 65mm) inch hole core drill bit, drill a hole at either the right or left side of the wall mounting (Figure 6).
GENERAL INSTALLATION GUIDELINES Refrigerant Piping MULTI F MULTI F MAX Preparing for Piping Installation to the Indoor Unit Note: Do not bend the piping / drain hose from side to side, it may damage the components. Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Prepare the refrigerant piping and drain hose (indoor unit piping) for installation through the wall.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Refrigerant Piping Multi F MAX Y-Branch Kit PMBL5620 The LG supplied Y-Branch Kit PMBL5620 MUST be used when two branch distribution units are connected to one Multi F MAX system. Field-supplied fittings are not permitted. Each Y-Branch kit comes with two (2) Y-branches (one for the liquid line and one for the vapor line) and insulation covers. Y-branches may be installed in horizontal or vertical configurations.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Refrigerant Piping Selecting Field-Supplied Copper Tubing Copper is the only approved refrigerant pipe material for use with Duct Free System Single Zone products, and LG recommends seamless phosphorous deoxidized ACR type copper pipe, hard-drawn rigid type “K” or “L”, or annealed-tempered, copper pipe.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Refrigerant Piping No Pipe Size Substitutions Note: Use only the pipe size recommended by this installation manual. Using a different size is prohibited and may result in system malfunction or failure. Copper Expansion and Contraction Under normal operating conditions, the vapor pipe temperature of a Duct Free System can vary as much as 280°F.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Refrigerant Piping See table below for precalculated anticipated expansion for various pipe sizes and lengths of refrigerant tubing. To find the anticipated expansion value: 1. From the table below, find the row corresponding with the actual feet of the straight pipe segment. 2. Estimate the minimum and maximum temperature of the pipe. 3.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Refrigerant Piping Inserts and Pipe Supports Inserts An insert can be installed into a floor or beam before the concrete sets so that fittings such as ducts, pipes, or suspension bolts can be added at a later time. Decide where the inserts should be placed before support installation. Anti-vibration Material Insert Pipe Supports Figure 19: Installing an Insert Into a Concrete Beam.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Refrigerant Piping Examples of Supports Figure 24: U-Bolt Support with Insulation. Figure 26: Saddle-Type Support. Figure 25: O-Ring Support with Insulation. Bolt Insulation Support at Intervals Between 5 and 6-3/4 Feet Bolt Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit 1.5t Plate PVC PVC Note: Do not compress the insulation with the saddle-type support.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Refrigerant Piping Note: Pipe Sleeves at Penetrations Pipe diameter plus insulation thickness determines wall penetration diameter. For example: Diameter of Gas Piping: 1/2" Diameter of Liquid Piping: 1/4" Thickness of Gas Piping Insulation: 0.4" x 2 Thickness of Liquid Piping Insulation: 0.4" x 2 Surplus: 0.8" Sleeve diameter (total): 3.
MULTI F MULTI F MAX GENERAL INSTALLATION GUIDELINES Piping Materials and Handling Piping Materials and Handling Figure 34: Keep Piping Capped While Storing Pipes used for the refrigerant piping system must include the specified thickness, and the interior must be clean. While handling and storing, do not bend or damage the pipes, and take care not to contaminate the interior with dust, moisture, etc. See Table 18 for care of piping.
MULTI F MULTI F MAX PIPING CONNECTIONS Piping Preparation Piping Preparation Do not allow the refrigerant to leak during brazing; if refrigerant combusts, it generates a toxic gas which can cause physical injury or death. • Do not braze in an enclosed location, and always test for gas leaks before / after brazing. Gas leaks can cause physical injury or death. • After brazing, check for refrigerant gas leaks. Refrigerant gas leaks can cause physical injury or death.
MULTI F MULTI F MAX PIPING CONNECTIONS IDU to ODU Multi F Outdoor Unit to Indoor Unit Piping Connections Avoid Pipe Damage • When routing field-provided piping, avoid damaging the outdoor unit from excessive vibration. • Correctly route the piping so it does not make contact with mounting bolts. Allow room for field installation. • Properly insulate the liquid and gas lines separately up to the point of connection at the unit frame. • See table below for Multi F outdoor unit connection types.
MULTI F MULTI F MAX PIPING CONNECTIONS IDU to ODU Multi F System Piping Connections Note: Do not use polyolyester (POE) or any other type of mineral oil as a thread lubricant. These lubricants are not compatible with PVE oil used in this system and create oil sludge leading to equipment damage and system malfunction. 1. When connecting the flare nuts, coat the flare (inside and outside) with polyvinyl ether (PVE) refrigeration oil only. 2.
MULTI F MULTI F MAX PIPING CONNECTIONS IDU to ODU Refrigerant Safety WARNING Verify the maximum refrigerant concentration level in the space where the indoor unit will be mounted meets the concentration limit for the application. Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit ASHRAE Standards 15-2010 and 34-2010 offer guidelines that address refrigerant safety and the maximum allowable concentration of refrigerant in an occupied space.
MULTI F MULTI F MAX PIPING CONNECTIONS Piping Insulation Connecting the Indoor Unit Piping to the Field-Installed Piping 1. Center align the indoor unit piping (refrigerant and drain) and the field-installed piping, then hand tighten the flare nut. 2. Tighten the flare nut with a torque wrench. 3. Attach the drain tube piping to the indoor unit drain hose as shown. Figure 43: Extending the Drain Hose. Note: If the drain hose is routed inside a room, add insulation to prevent condensation from forming.
MULTI F MULTI F MAX PIPING CONNECTIONS IDU to ODU Installing Refrigerant Piping Insulation WARNING Ensure all refrigerant piping is insulated. Any exposed piping will cause burns if touched. Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Wrap all refrigerant and condensate piping including field-provided isolation ball valves and flexible pipe connection kits provided by LG. All pipes must be insulated and each pipe must be separately wrapped.
MULTI F MULTI F MAX PIPING CONNECTIONS Drain Piping Drain Piping The standard wall-mounted indoor units have a factory-provided flexible pipe (13/16” O.D./ 5/8” I.D.) to drain condensate water. The flexible pipe connects to field-provided drain pipe. Use materials that comply with local codes for drain pipe and insulation. 1. Install the flexible drain pipe as straight as possible; sharp angles may cause the pipe to deteriorate and may crack over time. 2.
MULTI F MULTI F MAX ELECTRICAL WIRING Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit General Guidelines • All power wiring and communication cable installation must be performed by trained service providers working in accordance with local, state, and National Electrical Code regulations related to electrical equipment and wiring, and following the instructions in this manual. Electric shock can cause physical injury or death.
MULTI F MULTI F MAX ELECTRICAL WIRING Power Wiring Specifications and Best Practices Line Voltage Wiring and Communications Cable Installation For both Multi F and Multi F MAX systems, line voltage is wired to the outdoor unit only. The outdoor unit will supply power to the branch distribution units (Multi F MAX systems only) and the indoor units through the power wiring / communications cable. Electrical Specifications 1. 2. 3. 4. 5.
ELECTRICAL WIRING Power Wiring Specifications and Best Practices/Controller Options MULTI F MULTI F MAX General Power / Communication Cable Specifications Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit • Use a four (4) conductor stranded, shielded or unshielded cable between the Multi Zone outdoor unit and the indoor units (if shielded, must be grounded to chassis at the outdoor unit only). • Minimum 18 gauge shielded CVVS or CPEVS cable. • Insulation material as required by local code.
ELECTRICAL WIRING MULTI F MULTI F MAX Indoor Unit Electrical Connections Guidelines Power Wiring / Communications Cable Guidelines • • • • • • • • These instructions are for the indoor unit only. For outdoor unit wiring, refer to the outdoor unit installation manual. Confirm power source specifications. Confirm that the electrical capacity is sufficient. Starting current must be maintained ±10 percent of the rated current marked on the outdoor unit name plate. Confirm cable thickness specifications.
ELECTRICAL WIRING MULTI F MULTI F MAX Indoor Unit Electrical Connections Procedure Figure 54: Latch over Screws on Bottom Panel, Indoor Unit Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Be sure there is no power input to the system before proceeding with these connections. There is risk of electrical shock resulting in serious bodily injury or death. 1. At the bottom panel of the indoor unit, unsnap the latches covering the phillips head screws as shown in Figure 54.
ELECTRICAL WIRING MULTI F MULTI F MAX Indoor Unit Electrical Connections 090HSV4,120HSV4, 180HSV4 Figure 59: Typical Indoor Unit Terminal Block Connections Figure 58: Typical Indoor Unit Terminal Block with Grounding Cable Terminal Block Expanded View Terminal Block Connecting Cables Cable Restrainer Grounding Cable RD BL 1(L1) 2(L2) 3 or S GND 1(L1) 2(L2) 3 1(L1) 2(L2) 3 or S GND RD 3 Indoor Unit Terminal Block BL 2(L2) Outdoor Unit Terminal Block or Branch Distribution Unit Terminal B
ELECTRICAL WIRING MULTI F MULTI F MAX Self Diagnosis Functions LG Monitoring View (LGMV) Diagnostic Software Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit LGMV software (PRCTSL1 and PRCTFE1) allows the service technician or commissioning agent to connect a computer USB port to the outdoor unit’s main printed circuit board (PCB) using an accessory cable.
ELECTRICAL WIRING MULTI F MULTI F MAX Self Diagnosis Functions LG Monitoring View (LGMV) Diagnostic Software and Cable - Continued • Data Saving Start: Recording of real time data to a separate file created to be stored on the user’s computer. • Data Loading Start: Recorded data from a saved “.CSV” file can be loaded to create an LGMV session. 6. Monitoring • Electrical: The lower half of main screen is changed to show Inverter Compressor Amps, Volts, Power Hz, Inverter control board fan Hz.
MULTI F MULTI F MAX ELECTRICAL WIRING LG SIMS - Self Diagnosis Functions The SIMs WLAN module and the smart phone app together provide monitoring and troubleshooting capability for LG Duct Free Systems. SIMs functions only with LG Duct Free products (Figure 66). Figure 66: LG SIMs App and WLAN Module Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
ELECTRICAL WIRING MULTI F MULTI F MAX LG SIMS - Self Diagnosis Functions SIMs App Screens Outdoor Info/ Component Screen Displays the following information: • • • • • • • • • • Frequency FAN1 RPM FAN2 RPM DC Link Current Voltage EEV Mode Restart Timer Comp Mode EEV • • • • • • • Inv TD Suction Discharge Cond Mid Cond Out Heatsink Air Temp Installation Manual Indoor Info Tab Displays the following information: • Frequency • Operation • THM Mode • REM Mode • FAN • EEV • Air Temp • Pipe-in • Pipe-mid •
ELECTRICAL WIRING MULTI F MULTI F MAX Optional Wall-Mounted Sensor and Controller Wall-Mounted Sensor Installation Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Proper indoor unit operation depends on the location of the room sensor. A good location will protect the zone controller from direct sunlight and external local sources of water vapor, and heated or cooled air.
MULTI F MULTI F MAX TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes Refer to Table 27 for information on the error codes that are generated from the indoor and outdoor units. These codes are the most common that will manifest through these units. Your particular model duct free system might generate additional codes not listed here. Please contact LG Support if you see these types of errors and a simple power down and boot up has not corrected the issue.
TROUBLESHOOTING MULTI F MULTI F MAX Error Codes Troubleshooting Using Error Codes - Continued Table 22: Multi Zone Wall-Mounted Indoor Unit Error Codes - Continued Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Error Code 21 22 23 25 26 27 28 29 31 32 40 41 44 45 46 48 53 60 61 62 63 65 67 Description DC Peak (IPM Fault); Compressor DC voltage was too high Current Transformer2 (CT2) error; Alternating current (AC) input too high DC Link Low Volt AC Low/High Volt DC Comp Position Error (not providin
MULTI F MULTI F MAX CAUTIONS FOR REFRIGERANT LEAKS Refrigerant Leaks Cautions for Refrigerant Leaks ASHRAE Standards 15-2010 and 34-2010 offer guidelines that address refrigerant safety and the maximum allowable concentration of refrigerant in an occupied space. Refrigerant will dissipate into the atmosphere, but a certain volume of air is required for this to occur safely. For R410A refrigerant, the maximum allowable concentration is 0.026 lbs./ft3 per 1,000 ft3 of air in an occupied space.
INSTALLATION CHECKLIST MULTI F MULTI F MAX PAGE 1 of 2 System ID No.:__________________________________________________ Indoor Unit ID.:_____________________________________ Checked by:___________________________________ Date:__________________ Signature:____________________________________ Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit Major Component Rough-In Description Single Zone unit was connected properly per local code and the product installation procedures.
INSTALLATION CHECKLIST MULTI F MULTI F MAX PAGE 2 of 2 System ID No.:__________________________________________________ Indoor Unit ID.:_____________________________________ Checked by:___________________________________ Date:__________________ Signature:____________________________________ Condensate Pump / Drain Installation Power Wire and Communications Cables Installation Manual Description Check Power wiring was connected to a single phase 208-230V source.
Multi F Art Cool™ Mirror Wall-Mounted Indoor Unit MULTI F MULTI F MAX 54 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MULTI F MULTI F MAX Who to call for assistance Your LG Manufacturer Representative Your LG Manufacturer Representative Your LG Manufacturer Representative Your LG Manufacturer Representative 1-888-865-3026 Installation Manual Freight Damage and Unit Replacements Missing Parts Freight Damage and Unit Replacements Received Wrong Indoor Unit Model Installation, Startup, and Commissioning Technical Assistance For warranty information, visit www.lghvac.com.
20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics Commercial Air Conditioning Division 11405 Old Roswell Road Alpharetta, Georgia 30009 www.lghvac.com LG Customer Information Center, Commercial Products 1-888-865-3026 USA Follow the prompts for commercial A/C products and parts.
