Single Zone High Efficiency Standard Wall Mounted Installation Manual Single Zone High Efficiency: LS090HSV4, LS120HSV4, LS180HSV4
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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 described below. TABLE OF Symbols This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Safety Instructions INSTALLATION - CONTINUED If the air conditioner is installed in a small space, take measures to prevent the refrigerant concentration from exceeding safety limits in the event of a refrigerant leak. Consult the latest edition of ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) Standard 15.
Safety Instructions WIRING High voltage electricity is required to operate this system. Adhere to the National Electrical Codes and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death. Turn the power off at the nearest disconnect before servicing the equipment. Electrical shock can cause physical injury or death. Properly size all circuit breakers or fuses. There is risk of fire, electric shock, explosion, physical injury or death.
Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Safety Instructions OPERATION 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. Periodically verify the equipment mounts have not deteriorated.
Table of Contents Safety Instructions................................................................................. 3 General Data........................................................................................... 8 Unit Nomenclature................................................................................ 8 Single Zone High Efficiency Unit Specifications ���������������������������������� 9 Electrical.........................................................................................
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Unit Nomenclature Single Zone Wall Mount Indoor and Outdoor Units LS N 090 HSV Family LS= High Efficiency Wall Mount / Standard / Extended Pipe / Mega Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Nominal Capacity (Nominal cooling capacity in Btu/h) 090/091 = 9,000 120/121 = 12,000 180/181 = 18,000 240 = 24,000 300/307 = 30,000 360 = 36,000 Indoor/Outdoor Product HSV = High Efficienc
General Data Single Zone High Efficiency Unit Specifications Table 1: Single Zone High Efficiency Unit Specifications Type System Model Number (IDU/ODU) 14 to 118 -4 to +65 53 to 75 60 to 86 45/40/35/29 53 20/26 75/79 R410A EEV 39/33/23/19 45 4 x 18 20/26 75/79 Single Rotary (1) Single Rotary (1) Twin Rotary (1) 38/33/23/19 45 Product Data Nominal Cooling Capacity (Btu/h) Cooling Power Input1 (kW) Nominal Heating Capacity (Btu/h)1 Heating Power Input1 (kW) COP EER SEER HSPF Power Supply (V/Hz/Ø)
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Electrical/R410A Refrigerant Electrical Table 2: Single Zone High Efficiency Indoor Unit Electrical Data Compressor Compressor Model Number Nom. Tons Qty (A) Cool/Heat LS090HSV4 3/4 1 8.3/8.3 LS120HSV4 1 1 8.3/8.3 LS180HSV4 1-1/2 1 14.6/14.6 Fan Qty ODU Fan (A) IDU Fan (A) MCA (A) MOP (A) 1 1 1 0.40 0.40 0.25 0.40 0.40 0.
General Installation Guidelines Location Selection Selecting the Best Location DANGER • To avoid the possibility of fire, do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. • Do not install the unit in a location where acidic solution and spray (sulfur) are often used as it can cause bodily injury or death. • Do not use the unit in environments where oil, steam, or sulfuric gas are present as it can cause bodily injury or death.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Oceanside Applications Oceanside Applications Figure 1: Oceanside Placement Using Windbreak Use of a Windbreak to Shield from Sea Wind Ocean winds may cause corrosion, particularly on the condenser and evaporator fins, which, in turn could cause product malfunction or inefficient performance. Windbreak • The unit should be installed in a soundproofed mechanical room.
General Installation Guidelines Mounting Bolt Location General Mounting Figure 3: Outdoor Unit Mounting Methods Securely attach the outdoor unit to a condenser pad, base rails, or another mounting platform that is securely anchored to the ground or building structure. Attach the outdoor unit with a bolt and nut on a concrete or rigid mount. See Figure 3. Follow applicable local codes for clearance, mounting, anchor and vibration attenuation requirements. All referenced materials are to be field-supplied.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Required Clearances Outdoor Unit Clearance Figure 4: Outdoor Unit Clearances Figure 5: Outdoor Unit Sunroof/Awning Clearances More than 24 12 Su nro of 12 12 Fe ob nce o sta r cle s 28 More than 12 More than 24 More than Unit : inch 28 24 Unit : inch Do not place the unit where animals and/or plants will be in the path of the warm air, or where the warm air and/or noi
General Installation Guidelines Mounting of Indoor Unit Installation Plate Mounting Installation Plate to Wall (090HSV4, 120HSV4, 180HSV4) Ø65 Ø65 Installation Plate 123 175 A Type B Type A Type : 95 B Type : 170 217 General Installation Guidelines 1. Before installation of the plate, confirm the position the screw types (A or B) between chassis and installation plate. 2. Mount the installation plate horizontally by aligning the centerline using a leveling tool. 3.
General Installation Guidelines Drilling Piping Hole in the Wall Figure 13: Drilling Piping Hole WALL Follow the left or right piping clearance recommendations as shown in Figure 9 and 10. 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 13). • The slant of the hole should be 3/16” to 5/16” from level with the slant being upward on the indoor unit side and downward on the outdoor unit side. 2.
General Installation Guidelines Piping Preparation Piping Preparation • Do not allow the refrigerant to leak during brazing; if the 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. Single Zone Pipe Connections 1.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Preparation/Piping Materials and Handling Tightening the Flare Nuts Figure 20: Tightening the Flare Nuts. Table 4: Tightening Torque for Flare Nuts. Pipe size (Inches O.D.) Tightening torque (ft-lbs) 1/4Ø 13.9 - 18 3/8Ø 24.5 - 30.3 1/2Ø 39.7 - 47.7 5/8Ø 45.5 - 59.2 Width of the flare (A [inches]) 1/8 1/8 1/8 1/16 Union 1.
General Installation Guidelines Piping Materials and Handling Brazing Practices Figure 22: Refrigerant Pipe Brazing. Refrigerant Piping It is imperative to keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust during installation. Contaminants can result in mechanical failure of the system. Pipe to be brazed Pressure-reducing Valve Nitrogen Taping Valve All joints are brazed in the field.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Materials and Handling 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.
General Installation Guidelines Piping Materials and Handling No Pipe Size Substitutions Use only the pipe size recommended by this installation manual. Using a different size is prohibited and may result in a system malfunction or failure to work at all. Figure 23: Installing Piping Above and Below an Obstacle. Obstacles Copper Expansion and Contraction Under normal operating conditions, the vapor pipe temperature of a Duct Free System can vary as much as 280°F.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Materials and Handling 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.
General Installation Guidelines Piping Materials and Handling / Piping Support Pipe Bends When bending soft copper, use long radius bends. Refer to the "Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets” table for minimum radius specifications, as shown on previous page.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Support / Piping Sleeves Pipe Supports, continued. A properly installed pipe system will have sufficient supports to avoid pipes from sagging during the life of the system. As necessary, place supports closer for segments where potential sagging could occur. Maximum spacing of pipe supports shall meet local codes.
General Installation Guidelines Underground Piping Underground Refrigerant Piping Refrigerant pipe installed underground should be routed inside a vapor tight protective sleeve to prevent insulation deterioration and water infiltration. Refrigerant pipe installed inside underground casing must be continuous without any joints. Underground refrigerant pipe must be located at a level below the frost line. Figure 28: Typical Arrangement of Refrigerant Pipe and Cable(s) in a Utility Conduit.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Refrigerant Piping System Limitations/Installation Connection Limitations Single zone systems consist of one outdoor unit and one indoor unit. One of the most critical elements of a single zone system is the refrigerant piping. Table 14 lists pipe length limits that must be followed in the design of a Single Zone Wall Mount refrigerant pipe system.
Refrigerant Piping Connections Directional Pipe Formation Pipe Bundling Figure 30: Cutaway of Proper Pipe and Cable Bundling See Figure 30 for proper pipe and cable bundling. Note the placement of the piping along with the necessary insulation material. 1. Be sure to wrap each pipe with proper insulation material. 2. Secure the piping by wrapping vinyl tape around the pipe. • Use the narrow size tape for wrapping the actual pipe. 3.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Drain Hose Drain Hose Guidelines Refer to the diagrams below and follow proper installation and the running of the drain hose along the pipe installation line to avoid leakage. Once drain hose is set in place, always follow with evacuation and leakage testing of all piping to be sure all piping is properly sealed. Re-check and retest as necessary.
Refrigerant Piping Connections Outdoor Unit Connections Single Zone High Efficiency Wall Mount Outdoor Unit Connections Figure 36: Outdoor Unit Connection Cover Removal (HSV4) Tubing Cover When tightening the flare nut with a torque wrench, ensure the direction for tightening follows the arrow on the wrench. Table 15: Torque Wrench Tightening Outside Diameter (inches) 1/4 3/8 1/2 5/8 Torque (lbs-ft) 13-18 24.6-30.4 39.8-47.7 45.6-59.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Indoor Unit Connections Single Zone High Efficiency Wall Mount Piping to Indoor Unit Follow the steps below and refer to the illustrations on this page to connect piping to the Single Zone indoor unit. To see specific bundling of piping and drain hose, see Section, “Bundling and Cutting Line” on page 31.
Refrigerant Piping Connections Bundling and Cutting Line Piping and cabling must be insulated and bundled together correctly for safety and usage. Follow proper methods and procedures as outlined here and on the next pages to ensure installation and piping are correctly installed. As shown in Figure 41, the connection pipe, along with the indoor unit pipe are fully encased in insulation material. 1. Bind together the two pipes, using vinyl tape. Make sure there are no gaps during the binding. 2.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Refrigerant Piping Insulation Refrigerant Piping Insulation To prevent heat loss/heat gain through the refrigerant piping, all refrigerant piping including liquid lines and vapor lines must be insulated separately. Insulation must be a minimum 1/2″ thick, and thickness may need to be increased based on ambient conditions and local codes.
Refrigerant Piping Connections Refrigerant Piping Insulation Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene (EPDM) Insulation Wall Thickness Requirements Follow locals codes when selecting EPDM insulation wall thickness. Non-air conditioned location 3. Typical location 4. Special location 1/2 inch 1/2 inch 1/2 inch 1/2 inch 3/4 inch 1 inch 1 inch 1. Typical location (Air-conditioned location): When the piping passes through an indoor area where the indoor unit operates.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Pipe Sleeves at Penetrations Pipe Sleeves at Penetrations LG requires that all pipe penetrations through walls, floors, and pipes buried underground be properly insulated and routed through an appropriate wall sleeve of sufficient size to prevent compression of refrigerant pipe insulation and free movement of the pipe within the sleeve.
Refrigerant Piping Connections Air Purging Air Purging Best Practices Air purging is done to the piping system after all piping has been connected between the indoor and outdoor unit. This step is necessary to be sure that air refrigerant can flow through the system without danger of leakage or pressure issues. Air and moisture that is left in the piping can lead to undesirable results and can cause damage to the working unit.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Leak Test/Soap Method Check Leak Test Perform the leak test by pressurizing nitrogen gas to 550 psi on both the liquid and gas pipes. Test with the piping service valves closed. If the pressure does not drop for twenty-four (24) hours, the system passes the test. If the pressure drops, there is a nitrogen leak in the system. Find the leak, repair, and then test again.
Refrigerant Piping Connections Evacuation of Lines/Finishing Up/Remote Controller Evacuation After successful leak testing has been performed, follow Evacuation procedure. Follow the same steps for charge hose hookup to the system. See Figure 51 on page 35 for proper hookup. 4. Turn off the pump and leave the connections secured to the two Procedure service valves. 1. Confirm that the “Lo” knob of the manifold valve is open. Refer 5. Wait 5 minutes. back to Figure 51. 6.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Pump Down, Cooling Only Mode Never air purge with refrigerant as it can lead to refrigerant leakage which can cause bodily harm and injury, especially if inhaled. Use a vacuum pump that can evacuate down to 500 microns. 1. If moisture remains in the piping after the system is evacuated for two (2) hours, break the vacuum (down to 7.5 psi with nitrogen gas). 2.
Electrical Wiring General Information and Safety Guidelines • Consider ambient conditions (temperature, direct sunlight, inclement weather, etc.) when selecting, installing, and connecting the power wiring. • Properly ground the Single Zone outdoor and indoor unit. Improperly ground wire can cause communication problems from electrical noise, and motor current leakage. Ground wiring must always be installed by a qualified technician.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Power Wiring Specifications and Best Practices Power Supply / Power Wiring Specifications • Single Zone systems operate at 1Ø, 208-230V, 60Hz. • Power supply, wire type and size should be selected based on National Electrical Code and local codes. Maximum allowable voltage fluctuation ±10% or nameplate rated value. Refer to Figure 54 for wiring guidelines.
Electrical Wiring Power Wiring Specifications and Best Practices/Controller Options Power Supply/Power Wiring Specifications, continued • If power wires are not properly terminated and firmly attached, there is risk of fire, electric shock, and physical injury or death. • Never ground the shield of the communications cable to the indoor unit frame or other grounded entities of the building. • Never apply line voltage power to the communications cable terminal block.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Indoor Unit Electrical Connections Overview - Connecting Indoor Unit Electrical Wiring The general guidelines for connecting electrical and communication cables to the indoor unit are the same for each Single Zone High Efficiency Wall Mount system, however, the actual connections on the terminal block will differ.
Electrical Wiring Indoor Unit Electrical Connections Connecting Indoor Unit Electrical Wiring - Continued 5. When done, reattach the bottom panel to the indoor unit, being careful to align panel using the rear tabs. • You might need to give the panel a gentle tap with the palm of your hand to be sure it engages at the bottom. 6. Using a phillips screwdriver, reattach the screws to the bottom panel and secure. 7. Once screws are in place, re-snap the latches over the screws.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Outdoor Unit Electrical Connections Connecting Outdoor Unit Electrical Wiring The general guidelines for connecting electrical and communication cables to the outdoor unit are the same for each Single Zone High Efficiency Wall Mount system, however, the actual connections on the terminal block will differ.
Electrical Wiring Outdoor Unit Electrical Connections Terminal Block Connection for 090HSV4, 120HSV4 Terminal Block Connections for 180HSV4 See Figure 64 for specific terminal block wiring for the following Single Zone High Efficiency outdoor unit models: See Figure 65 for 180HSV4 Single Zone High Efficiency terminal block connections.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Self Diagnosis Functions LG Monitoring View (LGMV) Diagnostic Software LGMV software (PRCTSL1 and PRCTFE1) allows the service technician or commissioning agent to connect a computer USB port to the Single Zone unit’s main printed circuit board (PCB) using an accessory cable without the need for a separate interface device.
Electrical Wiring Self Diagnosis Functions LG Monitoring View (LGMV) Diagnostic Software and Cable - Continued 5. Data (Figure 68) • 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. Figure 68: MV Control Indoor Units Screen 6.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual 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 70). SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
Electrical Wiring 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 Displays the following information: • Frequency • Operation • THM Mode • REM Mode • FAN • EEV • Air Temp • Pipe-in • Pipe-mid • Pipe-out Displays the following information: • Inv TD • Suction • Discharge • Cond Mid • Cond Out • Heatsink • Air Temp Electrical Wir
TROUBLESHOOTING Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Error Codes Troubleshooting Using Error Codes Decoding the Error Display Refer to Tables 20 and Table 22 for 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.
TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes - Continued Table 21: Single Zone Wall Mounted Indoor Unit Error Codes - Continued Description 21 22 23 25 26 27 28 29 31 32 40 41 44 45 46 48 53 60 61 62 63 65 67 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 providing rotation), Locking PSC Fault; Current to inverter compressor between AC and DC co
TROUBLESHOOTING Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Error Codes Single Zone Wall Mounted Outdoor Unit Error Codes The Single Zone Wall Mounted outdoor unit error codes are visible on the outdoor unit, as well as, from the indoor unit. The indoor unit error codes, however, are only visible from the indoor unit and will not display at the outdoor unit.
Cautions for Refrigerant Leaks Refrigerant Leaks Cautions for Refrigerant Leaks/Introduction 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 Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Major Component Rough-In Page 1 Description Single Zone unit was connected properly per local code and the product installation procedures. All literature and bagged accessories have been removed from the fan discharge. Indoor unit was installed, properly supported, and located indoors in a non-corrosive environment.
Installation CHECKLIST Page 2 Condensate Pump / Drain Installation Power Wire and Communications Cables Description Power wiring was connected to a single phase 208-230V source. Ground wire was installed and properly terminated at the unit. The power supplied was clean with voltage fluctuations within specifications. (±10% of nameplate). Power wiring to the Single Zone outdoor unit was installed per all local electrical code requirements.
20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics U.S.A., Inc. 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.
