SINGLE ZONE ART COOL™ MIRROR WALL MOUNTED ENGINEERING MANUAL 3/4, 1, 1-1/2, and 2 Tons Models: LA090HSV4 LA120HSV4 LA180HSV4 LA240HSV3
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TABLE OF CONTENTS INTRODUCTION ..................................................................................... 5 ARCHITECTURAL APPEAL .................................................................. 6 PRODUCT FEATURES AND BENEFITS ............................................... 8 UNIT NOMENCLATURE ......................................................................... 9 General Data ................................................................................... 10-11 Electrical Data .........
INTRODUCTION “Architectural Appeal” on page 6
ARCHITECTURAL APPEAL Convergence of Technological Innovation with Flexibility and Style Benefits of Single Zone Art Cool Mirror Wall-Mounted System • Available in 9,000 - 24,000 Btu/h • Inverter technology Art Cool™ Mirror Wall Mounted Engineering Manual • All-season use - heat pump models for both cooling and heating capabilities • Operating range for outdoor units of 14°F to 118°F (DB) in cooling and -4°F to 65°F (WB) in heating • Operating range for indoor units of 53°F to 75°F (WB) in cooling and 60°
PRODUCT DATA “Product Features and Benefits” on page 8 “Unit Nomenclature” on page 9 “General Data” on page 10 “Electrical Data” on page 12 “Outdoor Unit Dimensions” on page 14 “Indoor Unit Dimensions” on page 16 “Acoustic Data” on page 18 “Refrigerant Flow Diagram” on page 20 “Indoor Unit Wiring Diagram” on page 22 “Outdoor Unit Wiring Diagram” on page 24
PRODUCT FEATURES AND BENEFITS Art Cool™ Mirror Wall Mounted Engineering Manual Single Zone Art Cool™ Mirror Wall Mount Single zone systems are equipped with inverter components that offer superior load matching and long piping installation. The product works for optimizing power consumption in residential and small office buildings. Utilizing multiple indoor wall mount units each with custom temperature controls allow for precise temperature settings in each zone of the building.
UNIT NOMENCLATURE Single Zone Wall Mount Indoor and Outdoor Units LA N 090 HSV 4 Family LA= Art Cool Premier / Gallery / Mirror LS= High Efficiency Wall Mount / Standard / Mega Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Product Data 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 HEV = Mega HXV = Mega 115V HYV = Art Cool Premier HVP = Art Cool Gallery HSV = Art Coo
GENERAL DATA Art Cool Mirror Pairing Table The following table shows the available outdoor and indoor units, along with the factory provided controller. Art Cool™ Mirror Wall Mounted Engineering Manual Table 1: Single Zone Art Cool Mirror Pairing Table 10 | Outdoor Unit Model Indoor Unit Model Controller LSU090HSV4 LSU120HSV4 LAN090HSV4 LAN120HSV4 AKB73835317 LSU180HSV4 LAU240HSV3 LAN180HSV4 LAN240HSV3 AKB73835320 PRODUCT DATA 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FD
GENERAL DATA EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit 1 Power Input is rated at high speed. 2 Optional Low Ambient Wind Baffle Kit allows operation down to 0°F in cooling mode. 3 Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F) under section 608 of CAA. 4 Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
ELECTRICAL DATA Art Cool™ Mirror Wall Mounted Engineering Manual Table 3: Single-Zone Art Cool Mirror System Electrical Data Table. Model Number Nominal Tons Compressor Qty. Compressor (A) Cool/Heat Fan Qty. LA090HSV4 3/4 1 8.3/8.3 1 0.40 LA120HSV4 1 1 8.3/8.3 1 LA180HSV4 1-1/2 1 14.6/14.6 LA240HSV3 2 1 14.6/14.6 Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%. MCA = Minimum Circuit Ampacity. 12 | PRODUCT DATA ODU Fan (A) IDU Fan (A) MCA(A) MOP(A) 0.
FUNCTIONS, CONTROLS, OPTIONS $LUÀRZ Air Purifying Functions Controllers Special Function Kit 1 2 Primary washable filters. Secondary filters.
OUTDOOR UNIT DIMENSIONS LSU090HSV4, LSU120HSV4 Discharge Air Grille 30-5/16 4-3/16 6-3/32 13-15/16 11-5/16 5-3/4 4 2-3/32 1 10-15/16 3 5 2-7/8 2 Center of gravity [Unit : inch ] 8-3/32 10-1/2 9-3/8 21-1/2 Ø18-5/16 20-7/8 Art Cool™ Mirror Wall Mounted Engineering Manual 22 19-15/16 14 | PRODUCT DATA 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D U
OUTDOOR UNIT DIMENSIONS LSU180HSV4, LAU240HSV3 34-1/4 6-5/16 14-3/16 12-19/32 21-1/2 Item No. 1 2 3 4 5 6 Part Name Discharge air grille 12-5/8 5-7/8 2-3/16 13-1/8 Product Data 21-1/8 3-1/8 2 15-7/16 13-3/4 31-1/2 30-7/8 Ø 20-7/8 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS Center of gravity [Unit : inch] PRODUCT DAT
INDOOR UNIT DIMENSIONS LAN090HSV4, LAN120HSV4 3 2 11-1/4 8-1/16 2-3/8 Art Cool™ Mirror Wall Mounted Engineering Manual 34-13/16 1-3/4 2-3/16 2 1 1-3/4 15/16 2-5/16 6-5/16 4 Place a level on raised tab Unit Outline 17-3/8 17-3/8 Return Air Grille for piping and cables Ø2-9/16 Ø2-9/16 Left rear piping 5-1/8 6-15/16 16 | PRODUCT DATA Right rear piping 5 3-11/16 8-1/2 [Unit : Inch] 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ ©
INDOOR UNIT DIMENSIONS LAN180HSV4, LAN240HSV3 40-9/16 3 2-1/16 2-1/16 12-3/4 9-11/16 1-13/16 1-3/4 2-9/16 2 Product Data 1 Place a level on raised tab Unit Outline 18-1/8 Return Air Grille 22-7/16 4 Ø2-9/16 Left rear piping Measuring Tape 2-1/8 2-11/16 Measuring Tape Hanger Right rear piping Ø2-9/16 8-1/8 [Unit : Inch] 4-1/8 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO U
OUTDOOR UNIT ACOUSTIC DATA • Measurements are taken 3.28 ft away from the front of the unit. • Sound pressure levels are measured in dB(A) with a tolerance of ±3. • Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745. • Sound level will vary depending on a range of factors including the construction (acoustic absorption coefficient) of a particular room in which the unit was installed. Figure 1: Outdoor Unit Sound Levels Center of Outdoor Unit 3.
INDOOR UNIT ACOUSTIC DATA Figure 3: Indoor Unit Sound Levels • • • • Measurements are taken 3.28 ft away from the front of the unit. Sound pressure levels are measured in dB(A) with a tolerance of ±3. Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745. Sound level will vary depending on a range of factors including the construction (acoustic absorption coefficient) of a particular room in which the unit was installed.
REFRIGERANT FLOW DIAGRAMS LSU/LAN090HSV4, LSU/LAN120HSV4 Indoor Unit Outdoor Unit FIELD PIPI N G (Ø 1/ 4” Copper Tubing) 2-Way Valve Liquid Side EEV TH2 Art Cool™ Mirror Wall Mounted Engineering Manual M TH1 TH6 He at Exchanger (Evaporator) TH4 Heat Exchanger (Condenser) M TH3 TH5 FIELD PIPI N G (Ø 3/ 8” Copper Tubing) 3- Wa y Valve Reve rsing Valve TH7 Gas Side Accumulator TH8 Compressor 20 Thermistor Description TH1 Indoor air temperature thermistor TH2 Evaporator inlet tempera
REFRIGERANT FLOW DIAGRAMS LSU/LAN180HSV4, LAU/LAN240HSV3 Indoor Unit Outdoor Unit FIELD PIPIN G (Ø 3/ 8” Copper Tubing) 2-Way Valve Liqui d Side EEV TH2 M TH1 TH6 He at Exchanger (Ev aporator) TH4 Heat Exchanger (Condenser) M TH3 TH5 FIEL D PIPI N G (Ø 5/ 8” Copper Tubing) 3- Way Valve Reve rsing Valve TH7 Accumulator TH8 Compresso r Thermistor Description TH1 Indoor air temperature thermistor TH2 Evaporator inlet temperature thermistor TH3 Evaporator middle temperature thermistor
WIRING DIAGRAM Art Cool™ Mirror Wall Mounted Engineering Manual LAN090HSV4, LAN120HSV4 Auxiliary heater relay kit is not available on single-zone wall-mounted indoor units connected to a single-zone outdoor unit. 22 | PRODUCT DATA 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS
WIRING DIAGRAM LAN180HSV4, LAN240HSV3 Product Data Auxiliary heater relay kit is not available on single-zone wall-mounted indoor units connected to a single-zone outdoor unit. 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS PRODUCT DATA | 23
WIRING DIAGRAM Art Cool™ Mirror Wall Mounted Engineering Manual LSU090HSV4, LSU120HSV4 : Factory Wiring : Field Wiring : Optional 24 | PRODUCT DATA 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS
WIRING DIAGRAM LSU180HSV4, LAU240HSV3 Product Data 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS PRODUCT DATA | 25
ACCESSORIES LG Monitoring View (LGMV) Diagnostic Software and Cable (PRCTSL1 and PRCTFE1) Art Cool™ Mirror Wall Mounted Engineering Manual LGMV software allows the service technician or commissioning agent to connect a computer USB port to the outdoor unit main printed circuit board (PCB) using an accessory cable without the need for a separate interface device.
PERFORMANCE DATA “Cooling Capacity” on page 28 “Heating Capacity” on page 30 “Maximum Heating Capacity” on page 32 “Air Flow and Temperature Distributions Graphs” on page 34
PERFORMANCE DATA Cooling Capacity LA090HSV4, LA120HSV4 Table 7: LAN090HSV4/LSU090HSV4 Cooling Capacities. Art Cool™ Mirror Wall Mounted Engineering Manual Outdoor Air 64 / 53 Temp. (°F DB) TC SHC 0 5 7 10 14 23 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 5.45 5.34 5.38 5.44 5.51 5.92 6.01 6.24 6.47 6.70 6.94 7.17 7.40 7.63 7.56 7.49 7.43 7.36 7.29 7.22 7.15 6.96 6.77 6.59 6.35 6.21 6.02 4.37 4.31 4.35 4.41 4.49 4.82 4.90 5.09 5.28 5.47 5.65 5.84 6.03 6.22 6.17 6.11 6.05 6.00 5.
PERFORMANCE DATA Cooling Capacity LA180HSV4, LA240HSV3 Table 9: LAN180HSV4/LSU180HSV4 Cooling Capacities. Outdoor Air 64 / 53 Temp. (°F DB) TC SHC 11.02 10.81 10.88 10.99 11.14 11.96 12.15 12.62 13.09 13.56 14.03 14.50 14.97 15.44 15.30 15.16 15.02 14.87 14.73 14.59 14.45 14.07 13.70 13.32 12.84 12.56 12.18 8.83 8.71 8.79 8.91 9.07 9.74 9.89 10.27 10.66 11.04 11.42 11.80 12.19 12.57 12.45 12.34 12.23 12.11 12.00 11.89 11.77 11.46 11.15 10.84 10.46 10.22 10.43 PI 0.56 0.59 0.60 0.61 0.62 0.61 0.63 0.67 0.
PERFORMANCE DATA Heating Capacity LA090HSV4, LA120HSV4 Table 11: LAN090HSV4/LSU090HSV4 Heating Capacities. Outdoor Air Temp. Art Cool™ Mirror Wall Mounted Engineering Manual °F DB °F WB -3 0 6 10 16 19 24 32 41 43 47 53 59 64 70 75 -4 -1 5 9 14 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB/ °F WB) TC 60 5.51 6.00 6.35 6.62 6.83 6.97 7.65 9.17 10.52 10.86 11.36 11.48 11.74 11.99 12.22 12.39 PI TC 0.47 0.51 0.54 0.55 0.56 0.58 0.60 0.65 0.69 0.70 0.71 0.72 0.73 0.74 0.75 0.76 5.
PERFORMANCE DATA Heating Capacity LA180HSV4, LA240HSV3 Table 13: LAN180HSV4/LSU180HSV4 Heating Capacities. Outdoor Air Temp. °F DB °F WB -3 0 6 10 16 19 24 32 41 43 47 53 59 64 70 75 -4 -1 5 9 14 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB/ °F WB) TC 60 11.22 12.22 12.93 13.50 13.92 14.21 15.58 18.68 21.43 22.12 23.15 23.38 23.91 24.42 24.89 25.23 PI TC 1.17 1.29 1.35 1.39 1.40 1.45 1.50 1.62 1.73 1.76 1.80 1.81 1.83 1.87 1.89 1.92 10.88 11.85 12.53 13.09 13.50 13.77 15.11 18.
PERFORMANCE DATA Maximum Heating Capacity LA090HSV4, LA120HSV4 Table 15: LAN090HSV4/LAU090HSV4 Maximum Heating Capacities. Outdoor Air Temp. Art Cool™ Mirror Wall Mounted Engineering Manual °F DB °F WB -3 0 1 6 10 16 17 19 24 32 41 43 47 53 59 64 70 75 -4 -1 0 5 9 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB/ °F WB) TC 60 8.42 8.90 9.10 9.80 10.36 11.01 11.11 11.38 12.06 12.75 13.40 13.53 13.72 14.08 14.26 14.37 14.42 14.39 PI TC 0.92 0.93 0.94 0.97 0.98 0.98 0.99 1.00 1.
PERFORMANCE DATA Maximum Heating Capacity LA180HSV4, LA240HSV3 Table 17: LAN180HSV4/LAU180HSV4 Maximum Heating Capacities. Outdoor Air Temp. °F DB °F WB -3 0 1 6 10 16 17 19 24 32 41 43 47 53 59 64 70 75 -4 -1 0 5 9 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB/ °F WB) TC 60 16.99 17.95 18.34 19.76 20.89 22.21 22.40 22.95 24.31 25.70 27.01 27.29 27.67 28.39 28.75 28.98 29.08 29.01 PI TC 2.29 2.32 2.34 2.41 2.42 2.44 2.46 2.47 2.49 2.41 2.25 2.15 2.07 2.11 2.07 2.02 1.93 1.
PERFORMANCE DATA Air Flow and Temperature Distributions Graphs LAN090HSV4 Cooling Heating Discharge angle:45° Discharge angle:50° Air velocity [ft/s] Air velocity [ft/s] 8.9ft 8.9ft 6.6ft 6.6ft 3.9 3.3 Art Cool™ Mirror Wall Mounted Engineering Manual 3.3 4.0ft 4.0ft 2.5 2.5 1.6 16.4ft 13.1ft 9.8ft 1.6 6.6ft 0ft 3.3ft Te mperature [˚F] 0ft 16.4ft 13.1ft 9.8ft 6.6ft 3.3ft 0ft Te mperature [˚F] 8.9ft 8.9ft 6.6ft 13.1ft 9.8ft 4.0ft 82.4 84.2 75.2 77 16.4ft 6.6ft 4.
PERFORMANCE DATA Air Flow and Temperature Distributions Graphs LAN180HSV4, LAN240HSV3 Cooling Heating Discharge angle:45° Discharge angle:50° Air velocity [ft/s] Air velocity [ft/s] 4.9 8.9ft 8.9ft 6.6ft 6.6ft 4.9 4.0ft 1.6 26.2ft 23ft 19.7ft 16.4ft 13.1ft 9.8ft 3.3 2.5 6.6ft 3.3ft 0ft 26.2ft 19.7ft 16.4ft 13.1ft 9.8ft 6.6ft 3.3ft 0ft 0ft 16.4ft 77 13.1ft 6.6ft 8.9ft 6.6ft 6.6ft 87.8 4.0ft 75.2 9.8ft 8.9ft 3.3ft 0ft 84.2 82.4 0ft 26.2ft 23ft 19.7ft 16.4ft 13.
APPLICATION GUIDELINES “Equipment Selection Procedure” on page 37 “Building Ventilation Design Guide” on page 39 “Placement Considerations” on page 41
EQUIPMENT SELECTION PROCEDURE Cooling/Heating Correction Factors For Single Zone Art Cool Mirror systems, calculate the equivalent length of the liquid line from the outdoor unit to the indoor unit. Also, determine the elevation difference of the indoor unit above or below the outdoor unit. Find corresponding cooling or heating capacity correction factors as shown in Figures 5 through 8.
EQUIPMENT SELECTION PROCEDURE Figure 7: /$ +69 /$ +69 &RROLQJ &RHI¿FLHQW )DFWRU Cooling Capacity(%) 95 18k, 24k 90 7.5(24.6) 20(65.6) 30(98.4) Total Pipe Length[m(ft)] Figure 8: /$ +69 /$ +69 +HDWLQJ &RHI¿FLHQW )DFWRU Heating 100 Capacity(%) Art Cool™ Mirror Wall Mounted Engineering Manual 100 95 18k, 24k 7.5(24.6) 20(65.6) 30(98.4) Total Pipe Length[m(ft)] 38 | APPLICATION GUIDELINES 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWK
BUILDING VENTILATION DESIGN GUIDE Building Ventilation Design Guide ASHRAE 62.1 and local codes specify the minimum volume of outdoor air that must be provided to an occupied space. Outdoor air is required to minimize adverse health effects, and it provides acceptable indoor air quality for building occupants. The three methods of accomplishing this with single zone systems are summarized here. $OWKRXJK ZH EHOLHYH WKDW WKHVH EXLOGLQJ YHQWLODWLRQ PHWKRGV KDYH EHHQ SRUWUD\HG DFFXUDWHO\ QRQH RI WKH PHWKRGV K
BUILDING VENTILATION DESIGN GUIDE Method 2: Unconditioned Outdoor Air (Non-Ducted, Natural Ventilation) Art Cool™ Mirror Wall Mounted Engineering Manual Natural ventilation devices, such as operable windows or louvers may be used to ventilate the building when local code permits. The open area of a window or the free area of a louver must meet the minimum percentage of the net occupied floor area (Figure 10). Advantages Disadvantages • Occupants control the volume of the ventilation air manually.
PLACEMENT CONSIDERATIONS Selecting the Best Location DANGER 7R DYRLG WKH SRVVLELOLW\ RI ¿UH GR QRW LQVWDOO WKH XQLW LQ DQ DUHD ZKHUH FRPEXVWLEOH JDV PD\ JHQHUDWH ÀRZ VWDJQDWH RU OHDN )DLOXUH WR GR VR ZLOO cause serious bodily injury or death. Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it. Do not install the unit in a location where acidic solution and spray (sulfur) are often used as this may cause serious bodily injury or death.
PLACEMENT CONSIDERATIONS Indoor Unit Clearance/Outdoor Unit Installation Figure 12: Single Zone Indoor Unit Clearance Requirements. Indoor Unit Best Location Art Cool™ Mirror Wall Mounted Engineering Manual More than 4 inches Follow recommended best practices when choosing an indoor location for the single zone indoor unit. • Use a metal detector to locate studs in the walls. Anchor unit following stud location, to prevent damage to the wall.
PLACEMENT CONSIDERATIONS Outdoor Unit Clearances Minimum Clearance Requirements for Single-Zone Art Cool Mirror Systems Proper clearance for the outdoor unit coil is critical for proper unit operation. When installing the outdoor unit, consider service, inlet and outlet and minimum allowable space requirements as illustrated in the diagrams below. Specific clearance requirements in the diagram below are for the single-zone Art Cool Mirror wall mount systems.
REFRIGERANT PIPING DESIGN & LAYOUT BEST PRACTICES “Refrigerant Piping Design” on page 45 "Selecting Field-Supplied Copper Tubing" on page 46 "Refrigerant Piping System Layout" on page 47 “Piping Connections” on page 49 "Electrical Connections" on page 51 “Mechanical Specifications” on page 53 "Acronyms" on page 54
REFRIGERANT PIPING DESIGN Design Guideline Summary/Selecting Field-Supplied Copper Tubing Device Connection Limitations Figure 15: Art Cool Mirror System Layout. 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 20 lists pipe length limits that must be followed in the design of a Single Zone Art Cool Mirror refrigerant pipe system. Refer to Figure 15 for maximum length and elevation of piping.
REFRIGERANT PIPING DESIGN Selecting Field-Supplied Copper Tubing Figure 16: Coiled Expansion Loops and Offsets. L L R L R Art Cool™ Mirror Wall Mounted Engineering Manual Large Tubing U-bend (>3/4 in.) Loop Small Tubing U-bend (<3/4 in.) Table 23: Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Figure 17: Installing Piping Above and Below an Obstacle. Obstacles When an obstacle, such as an I-beam or concrete T, is in the path of the planned refrigerant pipe run, it is best practice to route the pipe over the obstacle. If adequate space is not available to route the insulated pipe over the obstacle, then route the pipe under the obstacle.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout 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. Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration See Figure 21.
INSTALLATION & LAYOUT BEST PRACTICES Piping Connections Single Zone Art Cool Mirror Outdoor Unit Connections 1. Remove the tubing cover from the unit by loosening the fastening screws (Figures 23 and 24). 2. Align the center of the refrigerant pipe and corresponding connection as shown in Figures 26 and 27. 3. Place a couple of drops of refrigerant oil on the opening rim of the flare before assembling. Ensure you do not add any contaminants. Tighten the flare nut initially by hand. 4.
INSTALLATION & LAYOUT BEST PRACTICES Piping Connections Installation of Refrigerant Piping / Brazing Practices Art Cool™ Mirror Wall Mounted Engineering Manual It is imperative to keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust during installation. All joints are brazed in the field. Single Zone Art Cool Mirror refrigeration system Figure 28: Refrigerant Pipe Brazing.
ELECTRICAL CONNECTIONS Figure 29: LSU090HSV4/LSU120HSV4 Outdoor Unit Electrical Connection. Outdoor Electrical Connection 1(L1) 2(L2) 1(L1) 2(L2) 3 Terminal Block Over 0.2” Terminal Block Connecting Cable Power Supply Cord Over 0.2” Power Supply Cord Conduit Panel Connecting Cable Conduit Panel Tubing Cover Terminal Cover Figure 31: Circuit Breaker. • 6HSDUDWHO\ ZLUH WKH KLJK DQG ORZ YROWDJH OLQHV 7KHUH LV D ULVN RI HOHFWULF VKRFN physical injury, or death.
TECHNICAL DATA “Mechanical Specifications” on page 53 “Acronyms” on page 54
MECHANICAL SPECIFICATIONS Single Zone Art Cool Mirror General LG Single Zone Art Cool Mirror systems are comprised of a single outdoor unit connected to a single indoor unit with a single refrigerant circuit. These single zone systems can operate in either cooling or heating mode. These systems are capable of changing mode within a maximum time of three (3) minutes to ensure indoor temperature can be properly maintained.
ACRONYMS Table 29: Table of Acronyms.
20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Commercial Air Conditioning Division 4300 North Point Parkway Alpharetta, Georgia 30022 www.lg-vrf.com LG Electronics Commercial Products Support 1-888-865-3026 USA Follow the prompts for commercial A/C products.
