Multi F Engineering Manual

ManualsBrandsLG ManualsAir Conditioners30000 BTU Cooling / 32000 BTU Heating 22 SEER 208/230 Volt Single Zone Mini Split Package with Ceiling Cassette Evaporator

INDOOR UNIT

ENGINEERING MANUAL

Indoor Units for Multi-Zone Heat Pump Systems

7,000 to 36,000 Btu/h

MULTI

MAX

MULTI

Art Cool

Mirror

Wall-Mounted

Art Cool

Gallery

Wall-Mounted

Ceiling-Concealed Duct

Four-Way Ceiling Cassette

Vertical-Horizontal

Air Handling Units

Summary of content (222 pages)

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MULTI F MULTI F MAX INDOOR UNIT ENGINEERING MANUAL Vertical-Horizontal Air Handling Units Art CoolTM Mirror Wall-Mounted Art CoolTM Gallery Wall-Mounted Four-Way Ceiling Cassette Ceiling-Concealed Duct Indoor Units for Multi-Zone Heat Pump Systems 7,000 to 36,000 Btu/h
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PROPRIETARY DATA NOTICE This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc., and are disclosed by LG Electronics U.S.A., Inc., only in confidence. This document is for design purposes only. EM_MultiF_IDU_11_18 For continual product development, LG reserves the right to change specifications without notice. ©LG Electronics Inc.
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MULTI F MULTI F MAX TABLE OF CONTENTS Convergence of Technology, Innovation, Flexibility, & Style ....................................................4 )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV ,QVWDOODWLRQ ......................... 104 ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV............................................. 105 Unit Nomenclature.......................................................................5 Four-Way Ceiling Cassette Indoor Units ...............................
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CONVERGENCE OF TECHNOLOGY, INNOVATION, FLEXIBILITY, & STYLE Multi F and Multi F MAX Indoor Unit Engineering Manual About LG Electronics, Inc. LG Electronics is a global leader and technology innovator in consumer electronics, mobile communications, and home appliances. LG Electronics comprises five business units—Home Entertainment, Mobile Communications, Air Conditioning, Business Solutions, and Home Appliance.
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MULTI F MULTI F MAX UNIT NOMENCLATURE Multi-Zone Systems — Indoor Units and Outdoor Units L M DN 12 7 HV BD 36 2 0 L = LG 7\SH 0 0XOWL =RQH &RPSRQHQW $1 $UW &RRO :DOO 0RXQWHG ,QGRRU 8QLW 1 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLW &1 )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLW '1 &HLOLQJ &RQFHDOHG 'XFW /RZ 6WDWLF ,QGRRU 8QLW +1 &HLOLQJ &RQFHDOHG 'XFW +LJK 6WDWLF ,QGRRU 8QLW 91 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ ,QGRRU 8QLW 8 2XWGRRU 8QLW Nominal Capacity 1RPLQDO FRROLQJ FDSDFLW\ LQ %WX K 15 =
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MULTI F MULTI F MAX FUNCTIONS, CONTROLS AND OPTIONS OVERVIEW 7DEOH Indoor Units—Functions, Controls and Options.
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MULTI F MULTI F MAX FUNCTIONS, CONTROLS AND OPTIONS OVERVIEW 7DEOH Indoor Unit Accessories Overview. Model No. Description '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 Introduction )RU )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLWV 37 4&+: Ceiling Grille PT-UQC Ceiling Grille PTDCQ Decorative Cover PTPKQ0 Plasma Filter PRARH0 Aux Hea
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Multi F and Multi F MAX Indoor Unit Engineering Manual MULTI F MULTI F MAX 8 | INTRODUCTION '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
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ART COOL MIRROR INDOOR UNIT DATA “Mechanical Specifications” on page 10 “General Data / Specifications” on page 11 “Dimensions” on page 12 “Cooling Capacity Table” on page 14 “Heating Capacity Table” on page 16 “Acoustic Data” on page 17 “Air Velocity and Temperature Distribution” on page 18 “Refrigerant Flow Diagram” on page 19 “Wiring Diagram” on page 20 “Factory Supplied Parts and Materials” on page 21 “Installation and Best Layout Practices” on page 22
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV ART COOL Mirror Wall-Mounted Indoor Units )LJXUH 0XOWL ) $UW &RRO 0LUURU :DOO 0RXQWHG ,QGRRU 8QLW General Multi F and Multi F MAX Indoor Unit Engineering Manual All LG indoor units are factory assembled, wired, piped, and provided with a control circuit board, fan, and motor. ART COOL Mirror :DOO 0RXQWHG LQGRRU XQLWV KDYH D VRXQG UDWLQJ QR KLJKHU WKDQ dB(A) as tested per KSA0701 ISO Standard 3745.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH Multi F Art Cool Mirror Indoor Unit General Data. Model Name Nominal Cooling Capacity (Btu/h) 1 Nominal Heating Capacity (Btu/h) 1 LAN090HSV5 LAN120HSV5 LAN180HSV5 9,000 12,000 18,000 10,900 13,600 21,600 Operating Range &RROLQJ ) :% Heating (°F DB) 57-77 59-81 )DQ Type Cross Flow 0RWRU 2XWSXW : [ 4W\ 30 x 1 Motor/Drive 60.
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Refrigerant, Drain Pipe, and Cable Knock Out Hole 2 (51) Rear Right 7-9/16 (192) Air Intake Air Outlet Refrigerant, Drain Pipe and Cable Knock Out Hole 5/16 (8) Drain Hose Connection C Type : 16.5 Place a Level on Raised Tab Attaching the Installation Plate, Drilling Hole C Type C Type : 3.9 32-15/16 (837) Unit Outline Connecting Gas/Liquid Pipe Ø2-9/16” Ø2-9/16" 7.6 5-3/16 (132) In Case of Left Side Piping C Type : 5.3 Installation Plate C Type : 16.
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ART COOL MIRROR INDOOR UNITS Dimensions MULTI F MULTI F MAX )LJXUH LAN180HSV5 Dimensions. Unit : inch (mm) Display & Remote Controller Signal Receiver Signal 50° Rear Right Bottom Air Outlet 8-11/32 (212) Air Intake 7/16 (11) 2-3/8 (60) Terminal Block for Power Supply and Communication Refrigerant, Drain Pipe and Cable Knock Out Hole Refrigerant, Drain Pipe and Cable Knock Out Hole Place a Level on Raised Tab C Type: 19.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Art Cool Mirror Indoor Units Cooling Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LAN090HSV5 9,000 LAN120HSV5 12,000 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC SHC 8.82 8.82 8.81 8.80 8.80 8.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Art Cool Mirror Indoor Units Cooling Capacity Table (continued). Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LAN180HSV5 18,000 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 12.33 12.43 12.52 12.62 12.71 12.81 12.90 13.00 13.10 13.19 13.29 13.38 13.16 12.93 12.70 12.46 12.33 12.00 11.67 11.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Heating Capacity Table 7DEOH Multi F Art Cool Mirror Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) Outdoor Air Temp. °F DB ) :% 61 TC 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Acoustic Data )LJXUH Sound Pressure Level Measurement Location. • 0HDVXUHPHQW WDNHQ ƍ EHORZ WKH ERWWRP RI WKH XQLW DQG DW D GLVWDQFH RI ƍ IURP IDFH RI XQLW • Measurements taken with no attenuation and units operating at full load normal operating condition. • Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Air Velocity and Temperature Distribution )LJXUH LAN090HSV5 and LAN120HSV5 Air Velocity and Temperature Distribution Charts. Multi F and Multi F MAX Indoor Unit Engineering Manual Cooling Heating )LJXUH LAN180HSV5 Air Velocity and Temperature Distribution Charts. Cooling 18 | ART COOL MIRROR 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ ©/* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Refrigerant Flow Diagram )LJXUH Art Cool Mirror Indoor Unit Refrigerant Flow Diagram. Th2 Vapor pipe connection port (flare connection) Heating Heat Th1 Exchanger Th4 Th5 Cooling M Cross Flow Fan Liquid pipe connection port (flare connection) 7DEOH Art Cool Mirror Indoor Unit Refrigerant Pipe Sizes. Line Size Liquid Line Size Indoor Unit Capacity Vapor (in., OD) (in.
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ART COOL MIRROR INDOOR UNITS Wiring Diagram Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH 0XOWL ) $UW &RRO 0LUURU /$1 +69 /$1 +69 DQG /$1 +69 ,QGRRU 8QLWV :LULQJ 'LDJUDP 20 | ART COOL MIRROR '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 MULTI F MULTI F MAX
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Factory Supplied Parts and Materials Factory Supplied Parts 7DEOH Parts Table.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Installation and Best Layout Practices DANGER Multi F and Multi F MAX Indoor Unit Engineering Manual 7R DYRLG WKH SRVVLELOLW\ RI ¿UH GR QRW LQVWDOO WKH XQLW LQ DQ DUHD ZKHUH FRPEXVWLEOH JDV ZLOO JHQHUDWH ÀRZ VWDJQDWH RU OHDN )DLOXUH WR GR VR ZLOO cause serious bodily injury or death. Before beginning installation, read the safety summary at the beginning of this manual.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Installation and Best Layout Practices )LJXUH Installation Plate for LAN090HSV5 and LAN120HSV5 Units.
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ART COOL MIRROR INDOOR UNITS Installation and Best Layout Practices MULTI F MULTI F MAX • • • • • • • Follow manufacturer’s circuit diagrams in the technical manuals. 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. It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Installation and Best Layout Practices Wireless Handheld Controller )LJXUH $.% :LUHOHVV &RQWUROOHU 7DEOH $.% :LUHOHVV &RQWUROOHU )XQFWLRQV Screen Display * Art Cool Mirror™ * * RESET Buttons '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 ART COOL MIRRO
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Installation and Best Layout Practices Wired Controller Connections )LJXUH :LUHG &RQWUROOHU &RQQHFWLRQ RQ WKH ,QGRRU 8QLW 7HUPLQDO Block—LAN090HSV5 and LAN120HSV5 models. )LJXUH :LUHG &RQWUROOHU &RQQHFWLRQ RQ WKH ,QGRRU 8QLW 7HUPLQDO Block—LAN180HSV5 models.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS Installation and Best Layout Practices )LJXUH Removing the Cable Guide Grooves. Hanging the Wired Controller 1. The controller wiring/cable can be installed in one of three direcWLRQV WRS EDFN RU RQ WKH ULJKW VLGH ,I WRS RU ULJKW VLGH LQVWDOODWLRQ is desired, remove cable guide grooves on the controller, and then position wiring/cable on applicable side. Top Top Back Right Side Right Side 2.
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ART COOL GALLERY INDOOR UNIT DATA “Mechanical Specifications” on page 29 “General Data / Specifications” on page 30 “Dimensions” on page 31 “Cooling Capacity Table” on page 32 “Heating Capacity Table” on page 33 “Acoustic Data” on page 34 “Air Velocity and Temperature Distribution” on page 35 “Refrigerant Flow Diagram” on page 36 “Wiring Diagram” on page 37 “Factory Supplied Parts and Materials” on page 38 “Installation and Best Layout Practices” on page 39
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV ART COOL Gallery Indoor Units General All LG indoor units are factory assembled, wired, piped, and provided with a control circuit board, fan, and motor. Art Cool Gallery indoor units have a sound rating no higher than 42 dB(A) as tested per KSA0701 ISO Standard 3745. Coil Indoor unit coils are comprised of a minimum of two rows of aluminum fins mechanically bonded to copper tubing.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH Multi F Art Cool Gallery Indoor Unit General Data. Model Name Nominal Cooling Capacity (Btu/h) 1 Nominal Heating Capacity (Btu/h) 1 LMAN097HVP LMAN127HVP 9,000 11,200 10,400 13,300 57-77 57-77 59-81 59-81 Multi F and Multi F MAX Indoor Unit Engineering Manual Operating Range &RROLQJ ) :% Heating (°F DB) )DQ Type Turbo Turbo 0RWRU 2XWSXW : [ 4W\ Motor/Drive Airflow Rate CFM (H/M/L) 24 x 1 24 x
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Dimensions )LJXUH LMAN097HVP and LMAN127HVP Dimensions. Supply Air Vane Supply Air Supply Air Supply Air Vane Art Cool Gallery™ Supply Air Supply Air Vane Return Air Inlet Discharge Air Grille '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 ART COOL GALLERY™ | 31
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Art Cool Gallery Indoor Units Cooling Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LMAN097HVP 9,000 LMAN127HVP 12,000 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC SHC 8.82 8.82 8.81 8.80 8.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Heating Capacity Table 7DEOH Multi F Art Cool Gallery Indoor Units Heating Capacity Table. Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMAN097HVP 9,000 61 TC 64 TC Indoor Air Temp. °F DB 68 70 TC TC 72 TC 75 TC °F DB ) :% 0 -0.4 5.35 5.28 5.23 5.20 5.12 4.90 5 4.5 6.03 5.95 5.90 5.88 5.80 5.58 6.26 10 9 6.71 6.63 6.58 6.56 6.48 17 15 7.61 7.54 7.49 7.46 7.39 7.14 20 19 7.95 7.88 7.83 7.80 7.72 7.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Acoustic Data • 0HDVXUHPHQW WDNHQ ƍ EHORZ WKH ERWWRP RI WKH XQLW DQG DW D GLVWDQFH RI ƍ IURP IDFH RI XQLW • Measurements taken with no attenuation and units operating at full load normal operating condition. • Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed. • Sound power levels are measured in dB(A).
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Air Velocity and Temperature Distribution )LJXUH LMAN097HVP Air Velocity and Temperature Distribution Charts. Cooling Discharge angle: 40° Discharge angle: 50° Heating Air velocity [ft/s] Air velocity [ft/s] 9f t 9f t 7f t 7f t 6.6 6.6 3f t 3f t 4.6 4.9 3.3 1.6 16ft 13ft 10ft 7 ft 3f t 16ft 0f t 3.3 1.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Refrigerant Flow Diagram )LJXUH Art Cool Gallery Indoor Unit Refrigerant Flow Diagram.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Wiring Diagram )LJXUH 0XOWL ) $UW &RRO *DOOHU\ ,QGRRU 8QLWV :LULQJ 'LDJUDP Art Cool Gallery™ '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 ART COOL GALLERY™ | 37
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ART COOL GALLERY INDOOR UNITS Factory Supplied Parts and Materials MULTI F MULTI F MAX Factory Supplied Parts Multi F and Multi F MAX Indoor Unit Engineering Manual 7DEOH Parts Table.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices Selecting the Best Location )LJXUH Minimum Clearance Requirements. Do’s • • • • • • Place the unit where air circulation will not be blocked. Place the unit where drainage can be obtained easily. Place the unit where noise prevention is taken into consideration. Ensure there is sufficient space from the ceiling and floor. Ensure there is sufficient maintenance space.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices Preparing the Indoor Unit for Installation Removing the Front Panel )LJXUH Preparing for Installation. 1A 1B 2A 2B 1. First pull the top of the front panel up (1A) and then out (1B). Multi F and Multi F MAX Indoor Unit Engineering Manual 2. Remove the two (2) screws at the bottom (2A), then lift off the front panel (2B). 3.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices )LJXUH Preparing the Refrigerant / Drain Connections. Preparing the Refrigerant and Drain Piping Connections 1. Depending on the installation requirements, route the indoor unit refrigerant piping and the drain hose to the left, right (see guidelines below), or rear of the frame. 1 2. Bundle the piping and drain hose with tape where they meet near the indoor unit frame.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices 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 below. )LJXUH Indoor Unit to Field-Installed Piping Connection.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices Power Wiring / Communications Cable Guidelines • • • • • • • Follow manufacturer’s circuit diagrams in the technical manuals. 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.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices Controller Options Art Cool Gallery wall-mounted indoor units include a handheld controller (AKB73635607), but optional LG-supplied wired controllers are available. Multi F and Multi F MAX Indoor Unit Engineering Manual Wireless Handheld Controller )LJXUH AKB73635607 :LUHOHVV &RQWUROOHU 7DEOH $.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices Wired Controller Connections )LJXUH :LUHG &RQWUROOHU &RQQHFWLRQ RQ WKH ,QGRRU 8QLW 7HUPLQDO %ORFN Indoor Unit Terminal Block CN-REMO 3 RD BL 1(L1 ) 2(L2) BR GRN / YLW GND To Outdoor Unit or Branch Distribution Unit (Multi F MAX Systems Only) Wired Controller Placement )LJXUH 3URSHU /RFDWLRQ IRU WKH :LUHG &RQWUROOHU To Wired Controller :LUHG FRQWUROOHUV LQFOXGH D VHQVRU WR GHWHFW URRP WHPSHUDWXUH 7R
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS Installation and Best Layout Practices Assigning the Thermistor for Temperature Detection Multi F and Multi F MAX Indoor Unit Engineering Manual Each indoor unit includes a return air thermistor assigned to sense the temperature. If a wired controller is installed, there is a choice of sensing temperature with either the indoor unit return air thermistor or the thermistor in the wired controller.
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MULTI F MULTI F MAX Art Cool Gallery™ 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ ©/* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/*´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS ART COOL GALLERY™ | 47
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STANDARD :$// 02817(' INDOOR UNIT DATA “Mechanical Specifications” on page 49 “General Data / Specifications” on page 50 “Dimensions” on page 51 “Cooling Capacity Table” on page 53 “Heating Capacity Table” on page 56 “Acoustic Data” on page 58 “Air Velocity and Temperature Distribution” on page 60 “Refrigerant Flow Diagram” on page 62 “Wiring Diagram” on page 63 “Factory Supplied Parts and Materials” on page 65 “Installation and Best Layout Practices” on page 66
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Standard Wall-Mounted Indoor Units )LJXUH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLW General All LG indoor units are factory assembled, wired, piped, and proYLGHG ZLWK D FRQWURO FLUFXLW ERDUG IDQ DQG PRWRU 6WDQGDUG :DOO Mounted units have a sound rating no higher than 46 dB(A) as tested per KSA0701 ISO Standard 3745.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLW *HQHUDO 'DWD Model Name Nominal Cooling Capacity (Btu/h) 1 Nominal Heating Capacity (Btu/h) 1 LMN079HVT LSN090HSV5 LSN120HSV5 LMN159HVT LSN180HSV5 LMN249HVT 7,000 9,000 12,000 14,300 18,000 24,000 8,100 10,900 13,600 15,600 21,600 25,600 Operating Range Multi F and Multi F MAX Indoor Unit Engineering Manual &RROLQJ ) :% Heating (°F DB) 57-77 5
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STANDARD WALL-MOUNTED INDOOR UNITS Dimensions MULTI F MULTI F MAX )LJXUH LMN079HVT, LSN090HSV5, LSN120HSV5, and LMN159HVT Dimensions. 1-7/16 (33.5) Display & Remote Controller Signal Receiver Bottom Rear Right 2 (51) 7-7/16 (189) Air Intake Air Outlet Refrigerant, Drain Pipe and Cable Routing Knock Out Hole 5/16 (8) Terminal Block for Power Supply and Communication Approx. 11-11/32 (288) to gas pipe 12-1/8 (308) Refrigerant, Drain Approx.
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Refrigerant, Drain Pipe and Cable Routing Knock Out Hole 4-17/32 (115) 5-29/32 (150) Ø2-9/16 (65) 3-9/32 (83) 5-9/32 (134) 14-11/16 (373) 39-9/32 (998) Installation Plate Unit Outline 39-9/32 (998) Unit Outline Connecting Gas/Liquid Pipe 5-13/32 (137) Ø2-9/16 (65) 7-13/32 (188) 3-9/32 (83) 5-29/32 (150) 6-15/32 (164) In case of Left Side Piping Fixing the Installation Plate, Drilling Hole 1-1/16 (27) 13-19/32 (345) Rear 8-9/32 (210) Air Intake 7/16 (11) 2-3/8 (60) 2-23/32 (69) [36-5/3
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Cooling Capacity Table 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLWV &RROLQJ &DSDFLW\ 7DEOH Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LMN079HVT 7,000 73 / 61 TC SHC ,QGRRU $LU 7HPS ) '% ) :% 77 / 64 80 / 67 TC SHC TC SHC 6.86 6.86 6.85 6.85 6.84 6.84 6.83 6.83 6.82 6.81 6.81 6.80 6.64 6.48 6.31 6.15 5.98 5.83 5.69 5.54 5.39 5.31 5.28 8.82 8.82 8.81 8.80 8.80 8.79 8.78 8.78 8.77 8.76 8.76 8.75 8.
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STANDARD WALL-MOUNTED INDOOR UNITS MULTI F MULTI F MAX Cooling Capacity Table 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLWV &RROLQJ &DSDFLW\ 7DEOH FRQWLQXHG Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LSN120HSV5 12,000 LMN159HVT 14,300 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC SHC 11.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Cooling Capacity Table 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLWV &RROLQJ &DSDFLW\ 7DEOH FRQWLQXHG Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LSN180HSV5 18,000 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 23.53 23.51 23.49 23.47 23.46 23.44 23.42 23.40 23.38 23.37 23.35 23.33 22.77 22.21 21.65 21.09 20.49 19.
PAGE 56
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Heating Capacity Table 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLWV +HDWLQJ &DSDFLW\ 7DEOH Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMN079HVT 8,100 LSN090HSV5 10,900 LSN120HSV5 13,600 Outdoor Air Temp. °F DB ) :% 61 TC 64 TC 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Heating Capacity Table 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLWV +HDWLQJ &DSDFLW\ 7DEOH Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMN159HVT 15,600 LMN249HVT 25,600 °F DB ) :% 61 TC 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.
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STANDARD WALL-MOUNTED INDOOR UNITS Acoustic Data Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH Sound Pressure Level Measurement Location. MULTI F MULTI F MAX • 0HDVXUHPHQW WDNHQ ƍ EHORZ WKH ERWWRP RI WKH XQLW DQG DW D GLVWDQFH RI ƍ IURP IDFH RI XQLW • Measurements taken with no attenuation and units operating at full load normal operating condition.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Acoustic Data )LJXUH LMN159HVT, LSN180HSV5, and LMN249HVT Sound Pressure Level Diagrams. LMN159HVT LSN180HSV5 LMN249HVT Standard Wall-Mounted '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 STD.
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STANDARD WALL-MOUNTED INDOOR UNITS Air Velocity and Temperature Distribution Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH LMN079HVT, LSN090HSV5, LSN120HSV5, LMN159HVT Air Velocity and Temperature Distribution Charts. )LJXUH LSN180HSV5 Air Velocity and Temperature Distribution Charts. 60 | STD. WALL-MOUNTED '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 UHVHUY
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Air Velocity and Temperature Distribution )LJXUH LMN249HVT Air Velocity and Temperature Distribution Charts. Standard Wall-Mounted '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 STD.
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STANDARD WALL-MOUNTED INDOOR UNITS Refrigerant Flow Diagram MULTI F MULTI F MAX )LJXUH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLW 5HIULJHUDQW )ORZ 'LDJUDP Gas pipe connection port (flare connection) Cooling Heating M Liquid pipe connection port (flare connection) 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLW Refrigerant Pipe Sizes. Model No. Vapor (inch) 7DEOH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG ,QGRRU 8QLW Refrigerant Pipe Connections.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Wiring Diagram )LJXUH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG /61 +69 /61 +69 /61 +69 ,QGRRU 8QLWV :LULQJ 'LDJUDP Standard Wall-Mounted '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 STD.
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STANDARD WALL-MOUNTED INDOOR UNITS Wiring Diagram Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH 0XOWL ) 6WDQGDUG :DOO 0RXQWHG /01 +97 /01 +97 /01 +97 ,QGRRU 8QLW :LULQJ 'LDJUDP 64 | STD. WALL-MOUNTED '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 MULTI F MULTI F MAX
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Factory Supplied Parts and Materials Factory Supplied Parts 7DEOH Parts Table.
PAGE 66
STANDARD WALL-MOUNTED INDOOR UNITS Installation and Best Layout Practices Selecting the Best Location )LJXUH Minimum Clearance Requirements. Do’s >4 inches Place the unit where air circulation will not be blocked. Place the unit where drainage can be obtained easily. Place the unit where noise prevention is taken into consideration. Ensure there is sufficient space from the ceiling and floor. Ensure there is sufficient maintenance space.
PAGE 67
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Installation and Best Layout Practices Preparing for Installation Prepare the refrigerant piping and drain hose (indoor unit piping) for installation through the ZDOO SUHVV RQ WKH WRS RI WKH WXELQJ FODPS DQG VORZO\ JXLGH WKH SLSLQJ KRVH GRZQ GHSHQGLQJ on installation requirements, then to the left or right). Relock the tubing clamp after the piping / hose are released. )LJXUH Preparing for Installation.
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STANDARD WALL-MOUNTED INDOOR UNITS Installation and Best Layout Practices MULTI F MULTI F MAX • • • • • • • Follow manufacturer’s circuit diagrams in the technical manuals. 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.
PAGE 69
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Installation and Best Layout Practices Controller Options Standard wall-mounted indoor units include a wireless controller (AKB74955602), but optional LG-supplied wired controllers are available. Wireless Controller )LJXUH $.% :LUHOHVV &RQWUROOHU 7DEOH $.% :LUHOHVV &RQWUROOHU )XQFWLRQV Screen Display Standard Wall-Mounted * * * RESET Buttons 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Installation and Best Layout Practices Wired Controller Connections )LJXUH :LUHG &RQWUROOHU &RQQHFWLRQ RQ ,QGRRU 8QLW 7HUPLQDO %ORFN² LMN079HVT, LSN090HSV5, LSN120HSV5, and LMN159HVT Models. )LJXUH :LUHG &RQWUROOHU &RQQHFWLRQ RQ ,QGRRU 8QLW 7HUPLQDO %ORFN² LSN180HSV5 and LMN249HVT Models.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS Installation and Best Layout Practices Hanging the Wired Controller 1. The controller wiring / cable can be installed in one of three direcWLRQV WRS EDFN RU RQ WKH ULJKW VLGH ,I WRS RU ULJKW VLGH LQVWDOODWLRQ is desired, remove cable guide grooves on the controller, and then position wiring / cable on applicable side. )LJXUH Removing the Cable Guide Grooves. Top Top Back Right Side Right Side 2. Choose and mark the area of installation.
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CEILING-CONCEALED '8&7 /2: 67$7,& INDOOR UNIT DATA “Mechanical Specifications” on page 73 “General Data / Specifications” on page 74 “Dimensions” on page 75 “Cooling Capacity Table” on page 76 “Heating Capacity Table” on page 78 “External Static Pressure” on page 79 “Acoustic Data” on page 80 “Refrigerant Flow Diagrams” on page 81 “Wiring Diagram” on page 83 “Factory Supplied Parts and Materials” on page 85 “Installation and Best Layout Practices” on page 86
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MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Ceiling-Concealed Duct (Low Static) Indoor Unit )LJXUH Ceiling-Concealed Duct (Low Static) Indoor Unit. General All LG indoor units are factory assembled, wired, piped, and provided with a control circuit board, fan, and motor.
PAGE 74
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH Multi F Ceiling-Concealed Low-Static Ducted Indoor Unit General Data. Model Name Nominal Cooling Capacity (Btu/h) 1 Nominal Heating Capacity (Btu/h) 1 LDN097HV4 LDN127HV4 LDN187HV4 9,000 12,000 18,000 10,400 13,800 20,800 Operating Range Multi F and Multi F MAX Indoor Unit Engineering Manual &RROLQJ ) :% Heating (°F DB) 57-77 59-81 Fan Type Sirocco 0RWRU 2XWSXW : [ 4W\ Motor/Drive Airflow Rat
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MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Dimensions )LJXUH LDN097HV4, LDN127HV4, and LDN187HV4 Dimensions. 5-5/16 1-3/8 13/16 Ceiling-Concealed Duct (Low Static) Top D Supply Air LDN187HV4 '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 DUCT (LOW STATIC) | 75
PAGE 76
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Cooling Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LDN097HV4 9,000 LDN127HV4 12,000 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC SHC 8.82 8.
PAGE 77
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Cooling Capacity Table (continued). Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 13.09 13.20 13.30 13.40 13.50 13.60 13.71 13.81 13.91 14.01 14.11 14.21 13.98 13.74 13.49 13.23 13.09 12.74 12.
PAGE 78
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Heating Capacity Table 7DEOH Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) Outdoor Air Temp. °F DB ) :% 61 TC 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.
PAGE 79
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS External Static Pressure 7DEOH Multi F Ceiling-Concealed Duct (Low Static) External Static Pressure Setting Values Table. Static Pressure (in. wg) Model No. / Nominal Capacity of Indoor Unit (Btu/h) LDN097HV4 9,000 LDN187HV4 18,000 0.04 0.08 Airflow Rate / CFM 0.12 0.16 0.
PAGE 80
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Acoustic Data • Measurements taken with no attenuation and units operating at full load normal operating condition. • Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed. • Sound power levels are measured in dB(A). • Tested in anechoic chamber per ISO Standard 3745. 4.9 ft. Ceiling 6.6 ft. 7DEOH Sound Pressure Levels (dB[A]).
PAGE 81
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Refrigerant Flow Diagram )LJXUH LDN097HV4 Refrigerant Flow Diagram. : Cooling : Heating Evaporator Outlet Temperature Thermistor Sirocco Fan M Ceiling-Concealed Duct (Low Static) Evaporator Inlet Temperature Thermistor Indoor Unit Indoor Air Temperature Thermistor 7DEOH Multi F Ceiling-Concealed Duct (Low Static) LDN097HV4 Indoor Unit Refrigerant Pipe Sizes. Model No.
PAGE 82
DUCT (LOW STATIC) INDOOR UNITS Refrigerant Flow Diagrams MULTI F MULTI F MAX )LJXUH LDN127HV4 and LDN187HV4 Refrigerant Flow Diagram. Multi F and Multi F MAX Indoor Unit Engineering Manual : Cooling : Heating Evaporator Outlet Temperature Thermistor Evaporator Inlet Temperature Thermistor Sirocco Fan M M Indoor Unit Indoor Air Temperature Thermistor 7DEOH Multi F Ceiling-Concealed Duct (Low Static) LDN127HV4 and LDN187HV4 Indoor Unit Refrigerant Pipe Sizes. Model No.
PAGE 83
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Wiring Diagram )LJXUH 0XOWL ) &HLOLQJ &RQFHDOHG 'XFW /RZ 6WDWLF /'1 +9 DQG /'1 +9 ,QGRRU 8QLWV :LULQJ 'LDJUDP Ceiling-Concealed Duct (Low Static) 11/18 '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 DUCT (LOW STATIC) | 83
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DUCT (LOW STATIC) INDOOR UNITS Wiring Diagram MULTI F MULTI F MAX Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH 0XOWL ) &HLOLQJ &RQFHDOHG 'XFW /RZ 6WDWLF /'1 +9 ,QGRRU 8QLWV :LULQJ 'LDJUDP MEZ62689324 11/18 84 | DUCT (LOW STATIC) '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
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MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Factory Supplied Parts and Materials Factory Supplied Parts 7DEOH Parts Table.
PAGE 86
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices Selecting the Best Location Do’s Multi F and Multi F MAX Indoor Unit Engineering Manual • • • • • • Place the unit where air circulation will not be blocked. Place the unit where drainage can be obtained easily. Place the unit where noise prevention is taken into consideration. (QVXUH WKHUH LV VXI¿FLHQW VWUHQJWK WR EHDU WKH ORDG RI WKH LQGRRU XQLW Ensure there is sufficient maintenance space.
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MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices 'XFW /RZ 6WDWLF ,QGRRU 8QLWV FDQ EH LQVWDOOHG LQ WZR ZD\V 7DEOH Indoor Unit Bolt Locations. )LJXUH Air inlet from the back of the indoor )LJXUH Air inlet from the bottom of the indoor unit. unit. Air Filter E G Back Panel Air Filter H Drainage hole 7DEOH Indoor Unit Bolt Location Dimensions.
PAGE 88
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices )LJXUH Drain Connection. Multi F and Multi F MAX Indoor Unit Engineering Manual Installing the Drain System Insulation (Field Supplied) • Drain piping must have downward gradient of at least 1/50 to 1/100; to prevent reverse flow, slope must not be straight up and down. • Do not damage the drain port on the indoor unit when connecting the field-supplied drain piping.
PAGE 89
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices Insulating the Refrigerant and Drain Piping )LJXUH Insulating the Piping. Ensure all piping is insulated. Exposed piping can cause burns if touched. Refrigerant Piping Insulation Field-installed vapor and liquid refrigerant piping lines must be properly and completely covered in insulation (up to the indoor unit piping connections). Any exposed piping will generate condensate or will cause burns if touched.
PAGE 90
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices • • • • • • • Follow manufacturer’s circuit diagrams in the technical manuals. 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. It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
PAGE 91
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices Controller Options Ceiling-concealed duct (low static) indoor units can be used with many LG-supplied wired controllers (sold separately). The wireless handKHOG FRQWUROOHU 0RGHO 1R 34:5+4 )'% LV DOVR DQ RSWLRQDO DFFHVVRU\ ZLWK XVH ZLUHG FRQWUROOHUV Wired Controller Connections )LJXUH 3=&:5& /* :LUHG 5HPRWH ([WHQVLRQ &DEOH Controllers can connect to the indoor unit in one of two different ways. 1.
PAGE 92
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices )LJXUH Removing the Cable Guide Grooves. Hanging the Wired Controller Multi F and Multi F MAX Indoor Unit Engineering Manual 1. The controller wiring / cable can be installed in one of three direcWLRQV WRS EDFN RU RQ WKH ULJKW VLGH ,I WRS RU ULJKW VLGH LQVWDOODWLRQ is desired, remove cable guide grooves on the controller, and then position wiring / cable on applicable side.
PAGE 93
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices External Static Pressure Control To provide a required air flow rate that accounts for the external static pressure change, follow the steps below. )LJXUH Controller External Static Pressure Setting Display. 1. To access system installer setting mode, press and hold the temperature increase and mode selection buttons simultaneously for approximately three (3) seconds.
PAGE 94
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS Installation and Best Layout Practices Assigning Air Flow To assign an air flow for each fan speed, follow the steps below. 1. To access system installer setting mode, press and hold the temperature increase and mode selection buttons simultaneously for approximately three (3) seconds. Choose setting code value “03” by pressing the mode selection button. )LJXUH Controller External Static Pressure Setting Display.
PAGE 95
CEILING-CONCEALED DUCT (HIGH STATIC) INDOOR UNIT DATA “Mechanical Specifications” on page 96 “General Data / Specifications” on page 97 “Dimensions” on page 98 “Cooling Capacity Table” on page 99 “Heating Capacity Table” on page 100 “External Static Pressure” on page 101 “Acoustic Data” on page 100 “Refrigerant Flow Diagrams” on page 102 “Wiring Diagram” on page 103 “Factory Supplied Parts and Materials” on page 104 “Installation and Best Layout Practices” on page 105
PAGE 96
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Ceiling-Concealed Duct (High Static) Indoor Unit )LJXUH Ceiling-Concealed Duct (High Static) Indoor Unit. Multi F and Multi F MAX Indoor Unit Engineering Manual General All LG indoor units are factory assembled, wired, piped, and provided with a control circuit board, fan, and motor.
PAGE 97
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH Multi F Ceiling-Concealed High-Static Ducted Indoor Unit General Data. Model Name LMHN240HV LMHN360HV 24,000 36,000 27,000 40,000 57-77 57-77 59-81 59-81 Type Sirocco Sirocco 0RWRU 2XWSXW : [ 4W\ Motor/Drive Factory Set Airflow Rate CFM (H/M/L) Factory Set External Static Pressure (in. wg) Maximum External Static Pressure (in.
PAGE 98
DUCT (HIGH STATIC) INDOOR UNITS Dimensions Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH LMHN240HV and LMHN360HV Dimensions. 98 | DUCT (HIGH STATIC) '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 MULTI F MULTI F MAX
PAGE 99
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Ceiling-Concealed Duct (High Static) Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LMHN360HV 36,000 23.53 23.51 23.49 23.47 23.46 23.44 23.42 23.40 23.38 23.37 23.35 23.33 22.77 22.21 21.65 21.09 20.49 19.99 19.49 18.99 18.49 18.19 18.10 35.29 35.26 35.24 35.21 35.18 35.16 35.13 35.10 35.08 35.05 35.02 34.99 34.15 33.31 32.48 31.64 30.74 29.
PAGE 100
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Heating Capacity Table 7DEOH Multi F Ceiling-Concealed Duct (High Static) Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMHN240HV 24,000 LMHN360HV 36,000 Outdoor Air Temp. 61 TC 64 TC Indoor Air Temp. °F DB 68 70 TC TC 72 TC 75 TC °F DB ) :% 0 -0.4 13.89 13.70 13.57 13.50 13.30 12.72 5 4.5 15.65 15.46 15.33 15.26 15.07 14.
PAGE 101
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS External Static Pressure / Acoustic Data 7DEOH Multi F Ceiling-Concealed Duct (High Static) External Static Pressure Setting Values Table. Static Pressure (in. wg) 0.1 0.16 0.23 0.31 Model No. / Nominal Capacity Airflow Rate / CFM of Indoor Unit (Btu/h) High Mid Low High Mid Low LMHN240HV 24,000 LMHN360HV 36,000 688 618 530 1,130 953 706 0.39 0.47 0.55 0.62 0.70 0.
PAGE 102
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Refrigerant Flow Diagrams )LJXUH LMHN240HV and LMHN360HV Refrigerant Flow Diagram.
PAGE 103
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Wiring Diagrams )LJXUH 0XOWL ) &HLOLQJ &RQFHDOHG 'XFW +LJK 6WDWLF /0+1 +9 ,QGRRU 8QLWV :LULQJ 'LDJUDP Ceiling-Concealed Duct (High Static) )LJXUH 0XOWL ) &HLOLQJ &RQFHDOHG 'XFW +LJK 6WDWLF /0+1 +9 ,QGRRU 8QLWV :LULQJ 'LDJUDP ROOM PIPE IN THERMISTOR THERMISTOR PIPE OUT THERMISTOR 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ ©/* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Factory Supplied Parts and Materials / Installation Factory Supplied Parts Multi F and Multi F MAX Indoor Unit Engineering Manual 7DEOH Parts Table.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices ,QGRRU XQLWV ,'8V PXVW QRW EH SODFHG LQ DQ HQYLURQPHQW ZKHUH WKH ,'8V ZLOO EH H[SRVHG WR KDUPIXO YRODWLOH RUJDQLF FRPSRXQGV 92&V RU LQ HQYLURQPHQWV ZKHUH WKHUH LV LPSURSHU DLU PDNH XS RU VXSSO\ RU LQDGHTXDWH YHQWLODWLRQ ,I WKHUH DUH FRQFHUQV DERXW 92&V LQ WKH HQYL URQPHQW ZKHUH WKH ,'8V DUH LQVWDOOHG SURSHU DLU PDNH XS RU VXSSO\ DQG RU DGHTXDWH YHQWLODWLRQ PXVW EH SURYLGHG $GGLWLRQDOO\ LQ EXLOGLQJV ZKHUH
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices Preparing the Installation Area and Hanging the Indoor Unit Frame 1. Select and mark the area for the suspension or console bolts (use embedded inserts or anchor bolts in new buildings, and hole-inanchors in older buildings). 3. Add the set-anchor and the plate washer to the bolts (bolts must be at least 13/32 inches in diameter), and then insert the bolts into the installation area.
PAGE 107
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices Checking the Drain Pump )LJXUH Checking the drain pump. The unit uses a drain pump to remove condensate. The pump must be tested before the system operates. • Connect (field supplied) flexible drain hose to the field-installed drain piping; leave it as is until the test is complete. • Pour water into the flexible drain hose and check for leaks.
PAGE 108
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices Follow manufacturer’s circuit diagrams in the technical manuals. 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. It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
PAGE 109
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices Using a Conduit )LJXUH Exterior View of Conduit Installation. 1. Remove the rubber stopper on the indoor unit. Pass the power wiring / communications cable through the conduit, the conduit mounting plate, and to / through the control panel of the indoor unit. 2. Connect the power wiring / communications cable to the indoor unit terminal block. 3. Screw the conduit mounting plate to the indoor unit. 4.
PAGE 110
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices Wired Controller Placement )LJXUH 3URSHU /RFDWLRQ IRU WKH :LUHG &RQWUROOHU :LUHG FRQWUROOHUV LQFOXGH D VHQVRU WR GHWHFW URRP WHPSHUDWXUH 7R PDLQWDLQ FRPIRUW levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air.
PAGE 111
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices External Static Pressure Control To provide a required air flow rate that accounts for the external static pressure change, follow the steps below. )LJXUH Controller External Static Pressure Setting Display. 1. To access system installer setting mode, press and hold the temperature increase and mode selection buttons simultaneously for approximately three (3) seconds.
PAGE 112
MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS Installation and Best Layout Practices Assigning Air Flow To assign an air flow for each fan speed, follow the steps below. 1. To access system installer setting mode, press and hold the temperature increase and mode selection buttons simultaneously for approximately three (3) seconds. Choose setting code value “03” by pressing the mode selection button. )LJXUH Controller External Static Pressure Setting Display.
PAGE 113
)285 :$< CEILING-CASSETTE INDOOR UNIT DATA “Mechanical Specifications” on page 114 “General Data / Specifications” on page 115 “Dimensions” on page 116 “Cooling Capacity Table” on page 118 “Heating Capacity Table” on page 120 “Acoustic Data” on page 122 “Air Velocity and Temperature Distribution” on page 124 “Refrigerant Flow Diagram” on page 126 “Wiring Diagram” on page 127 “Factory Supplied Parts and Materials” on page 128 “Installation and Best Layout Practices” on page 129
PAGE 114
FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MULTI F MAX 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Four-Way Ceiling-Cassette Indoor Units General All LG indoor units are factory assembled, wired, piped, and provided with a control circuit board, fan, and motor. Four-way ceilingcassette units have a sound rating no higher than 38 dB(A) as tested per KSA0701 ISO Standard 3745.
PAGE 115
MULTI F FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MAX *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH 0XOWL ) )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLW *HQHUDO 'DWD Model Name LMCN078HV LCN098HV4 LCN128HV4 LCN188HV4 Grille (Sold Separately) 37 4&+: PT-UQC 37 4&+: PT-UQC 37 4&+: PT-UQC 37 4&+: PT-UQC Nominal Cooling Capacity (Btu/h)1 7,000 9,000 12,000 18,000 Nominal Heating Capacity (Btu/h) 8,100 10,400 13,800 20,800 1 Operating Range &RROLQJ ) :% Heating (°F DB) 57-77 59-81
PAGE 116
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Dimensions Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH LMCN078HV, LCN098HV4, and LCN128HV4 Dimensions. 116 | CEILING-CASSET TE '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
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MULTI F MULTI F MAX FOUR-WAY CEILING-CASSETTE INDOOR UNITS Dimensions )LJXUH LCN188HV4 Dimensions. Four-Way Ceiling-Cassette Supply Air Vane Supply Air Vane Supply Air Vane Return Air Grille '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 CEILING-CASSET TE | 117
PAGE 118
FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MULTI F MAX Cooling Capacity Table 7DEOH 0XOWL ) )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLWV &RROLQJ &DSDFLW\ 7DEOH Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp.
PAGE 119
MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Cooling Capacity Table 7DEOH 0XOWL ) )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLWV &RROLQJ &DSDFLW\ 7DEOH Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LCN128HV4 12,000 11.76 11.75 11.75 11.74 11.73 11.72 11.71 11.70 11.69 11.68 11.67 11.66 11.38 11.10 10.83 10.55 10.25 10.00 9.75 9.50 9.25 9.10 9.05 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.
PAGE 120
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Heating Capacity Table 7DEOH 0XOWL ) )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLWV +HDWLQJ &DSDFLW\ 7DEOH Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMCN078HV 7,000 LCN098HV4 9,000 Outdoor Air Temp. °F DB ) :% 61 TC 0 -0.4 4.17 64 TC 4.11 Indoor Air Temp. °F DB 68 70 TC TC 4.07 4.05 72 TC 75 TC 3.99 3.82 5 4.5 4.70 4.64 4.60 4.58 4.52 4.34 10 9 5.22 5.17 5.
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MULTI F FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MAX Heating Capacity Table 7DEOH 0XOWL ) )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLWV +HDWLQJ &DSDFLW\ 7DEOH Model No. / Nominal Capacity of Indoor Unit (Btu/h) LCN128HV4 12,000 °F DB ) :% 61 TC 0 -0.4 7.10 64 TC 7.00 Indoor Air Temp. °F DB 68 70 TC TC 6.93 6.90 72 TC 75 TC 6.80 6.50 5 4.5 8.00 7.90 7.83 7.80 7.70 7.40 10 9 8.90 8.80 8.73 8.70 8.60 8.30 17 15 10.10 10.00 9.93 9.90 9.80 9.48 20 19 10.55 10.
PAGE 122
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Acoustic Data • 0HDVXUHPHQW WDNHQ ƍ DZD\ IURP WKH XQLW • Measurements taken with no attenuation and units operating at full load normal operating condition. • Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed. • Sound power levels are measured in dB(A). • Tested in anechoic chamber per ISO Standard 3745.
PAGE 123
MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Acoustic Data )LJXUH LCN128HV4 and LCN188HV4 Sound Pressure Level Diagrams. LCN128HV4 LCN188HV4 80 NC-65 60 NC-60 NC-55 50 NC-50 NC-45 40 Four-Way Ceiling-Cassette Sound pressure level (0 dB = 20 μPa) 70 NC-40 NC-35 30 NC-30 NC-25 20 Approximate Hearing Threshold NC-20 NC-15 10 63 125 250 500 1000 2000 4000 8000 Octave band center frequency (Hz) 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV
PAGE 124
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Air Velocity and Temperature Distribution )LJXUH LMCN078HV Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle: 40° Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] 9f t Multi F and Multi F MAX Indoor Unit Engineering Manual 6.6 6.6 6.6 4.9 3.3 4.9 3.3 7f t 9f t 6.6 4.9 4.9 3.3 7f t 3.3 1.6 1.6 3f t 3f t 1.6 1.
PAGE 125
MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Air Velocity and Temperature Distribution )LJXUH LCN128HV4 Air Velocity and Temperature Distribution Charts. Cooling Discharge angle: 40° Heating Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] 9ft 6.6 6.6 4.6 7ft 4.6 4.6 3.3 1.6 3ft 0ft 1.6 1.6 0ft 8ft 5ft 8ft 3ft 3.3 3.3 1.6 5ft 6.6 7ft 4.6 3.3 8ft 9ft 6.
PAGE 126
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Refrigerant Flow Diagram )LJXUH 0XOWL ) )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLW 5HIULJHUDQW )ORZ 'LDJUDP Gas pipe connection port (flare connection) Heat exchanger Multi F and Multi F MAX Indoor Unit Engineering Manual Heating Cooling Turbo fan M Evaporator Outlet Temperature Thermistor Indoor Air Temperature Thermistor Evaporator Inlet Temperature Thermistor Liquid pipe connection port (flare connection) 7DEOH 0XOWL ) )RXU :D\ &HL
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Wiring Diagram )LJXUH 0XOWL ) )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLW :LULQJ 'LDJUDP Four-Way Ceiling-Cassette '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 CEILING-CASSET TE | 127
PAGE 128
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Factory Supplied Parts and Materials Factory Supplied Parts Multi F and Multi F MAX Indoor Unit Engineering Manual 7DEOH Parts Table.
PAGE 129
MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Installation and Best Layout Practices Selecting the Best Location )LJXUH Indoor Unit Clearance Requirements. ≥19-11/16 inches The unit will be damaged, will malfunction, and/or will not operate as designed if installed in any of the conditions listed.
PAGE 130
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Installation and Best Layout Practices Installing Multiple Indoor Units in One Area )LJXUH Installing Multiple Indoor Units. Ensure there is enough space between indoor units, lighting fixtures, and ventilation fans / systems.
PAGE 131
MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Installation and Best Layout Practices For New Ceilings For Existing Ceilings 1. Use anchors when installing the indoor unit in an existing ceiling. 2. Ceiling height is shown on the side of the installation guide (template). Adjust the height of the unit accordingly. Adjust the clearance before hanging the indoor unit. 3. Remove the temporary washer plate and position the indoor unit hanger brackets on the bolts.
PAGE 132
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Installation and Best Layout Practices Insulating the Refrigerant and Drain Piping )LJXUH Insulating the Piping. Insulation for Refrigerant Piping (Field-Supplied) Insulation for Field-Installed Piping (Field-Supplied) Ensure all piping is insulated. Exposed piping can cause burns if touched.
PAGE 133
MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Installation and Best Layout Practices Connecting the Power Wiring and Communications Cable )LJXUH 3RZHU :LULQJ DQG &RPPXQLFDWLRQV Cable Connection Access. 1. To access the terminal block, open the control box cover. 2. Insert the power wiring / communications cable from the outdoor unit or branch distribution unit (Multi F MAX systems only) through the sides of the indoor unit and control box.
PAGE 134
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Installation and Best Layout Practices Controller Options Four-way ceiling-concealed indoor units include a wireless handheld controller (AKB73757604) 1, but optional LG-supplied wired controllers are available. Wireless Handheld Controller 7DEOH AKB737576041 :LUHOHVV +DQGKHOG &RQWUROOHU )XQFWLRQV 2 Button Description Label )LJXUH $.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX Installation and Best Layout Practices Wired Controller Placement )LJXUH 3URSHU /RFDWLRQ IRU WKH :LUHG &RQWUROOHU :DOO LQGRRU XQLWV FDQ EH XVHG ZLWK YDULRXV ZLUHG FRQWUROOHUV RSWLRQDO VROG VHSDUDWHO\ :LUHG FRQWUROOHUV LQFOXGH D VHQVRU WR GHWHFW URRP WHPSHUDWXUH 7R PDLQWDLQ FRPIRUW levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be direct
PAGE 136
FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX Installation and Best Layout Practices Finalizing Indoor Unit Installation— Installing the Decoration Panel Multi F and Multi F MAX Indoor Unit Engineering Manual 'HFRUDWLRQ SDQHO PXVW EH LQVWDOOHG SURSHUO\ FRRO DLU ZLOO OHDN IURP DQ\ JDSV IRXQG EHWZHHQ WKH LQGRRU XQLW IUDPH DQG WKH GHFRUDWLRQ SDQHO which will cause condensation to generate. 1.
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7:2 :$< 9(57,&$/ +25,=217$/ AIR HANDLING INDOOR UNIT DATA “Mechanical Specifications” on page 138 “General Data / Specifications” on page 139 “Dimensions” on page 140 “Cooling Capacity Table” on page 141 “Heating Capacity Table” on page 142 “External Static Pressure” on page 143 “Acoustic Data” on page 144 “Refrigerant Flow Diagram” on page 145 “Wiring Diagram” on page 146 “Factory Supplied Parts and Materials” on page 148 “Installation and Best Layout Practices” on page 149
PAGE 138
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Multi F and Multi F MAX Indoor Unit Engineering Manual Two-way Vertical-Horizontal Air Handing Indoor Unit steel housing and a forward curve fan wheel. The fan motor is a brushless digitally General controlled (BLDC) motor with permanently lubricated and All LG indoor units are factory assembled, wired, piped, and prosealed ball bearings. The fan vided with a control circuit board, fan, and motor.
PAGE 139
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH Multi F Vertical-Horizontal Air Handling Indoor Unit General Data. Model Name LMVN240HV LMVN360HV 24,000 36,000 27,000 40,000 57-77 57-77 59-81 59-81 Type Sirocco Sirocco 0RWRU 2XWSXW : [ 4W\ Motor/Drive $LUIORZ 5DWH &)0 + 0 / DW :* (63 0D[LPXP ([WHUQDO 6WDWLF 3UHVVXUH LQ :* 96 x 1 182 x 1 Brushless Digitally Controlled / Direct Brushless Digitally Controlled / Direct 710 / 640 / 480 990 / 8
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MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Dimensions )LJXUH LMVN240HV and LMVN360HV Dimensions. 18 17 D 12-1/8 W 1-9/16 H 1-15/16 1-15/16 Multi F and Multi F MAX Indoor Unit Engineering Manual 21-1/4 2-1/16 2-1/8 1-5/8 1-9/16 48-21/32 49-5/16 2-9/16 1-1/2 14-5/16 4-11/16 1-9/16 9-15/16 13 LMVN240HV LMVN360HV Model 18 W 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ ©/* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO
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MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Vertical-Horizontal Air Handling Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LMVN360HV 36,000 23.53 23.51 23.49 23.47 23.46 23.44 23.42 23.40 23.38 23.37 23.35 23.33 22.77 22.21 21.65 21.09 20.49 19.99 19.49 18.99 18.49 18.19 18.10 35.29 35.26 35.24 35.21 35.18 35.16 35.13 35.10 35.08 35.05 35.02 34.99 34.15 33.31 32.48 31.64 30.74 29.99 29.24 28.
PAGE 142
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Heating Capacity Table 7DEOH Multi F Vertical-Horizontal Air Handling Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMVN240HV 24,000 LMVN360HV 36,000 Outdoor Air Temp. 61 TC 64 TC Indoor Air Temp. °F DB 68 70 TC TC 72 TC 75 TC °F DB ) :% 0 -0.4 13.89 13.70 13.57 13.50 13.30 12.72 5 4.5 15.65 15.46 15.33 15.26 15.07 14.48 16.
PAGE 143
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS External Static Pressure 7DEOH Multi F Vertical-Horizontal Air Handling Unit External Static Pressure Setting Values Table. Static Pressure (in. wg) 0.1 0.2 0.3 0.4 Model No. / Nominal Capacity Airflow Rate / CFM of Indoor Unit (Btu/h) LMVN240HV 24,000 LMVN360HV 36,000 High Mid Low High Mid Low 710 640 480 990 880 800 0.5 0.6 0.7 0.8 0.9 1.
PAGE 144
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Acoustic Data 0HDVXUHPHQW WDNHQ ƍ DZD\ IURP WKH XQLW Measurements taken with no attenuation and units operating at full load normal operating condition. Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed. • Sound power levels are measured in dB(A). • Tested in anechoic chamber per ISO Standard 3745. 7DEOH Sound Pressure Levels (dB[A]). 3.
PAGE 145
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Refrigerant Flow Diagram )LJXUH Multi F Vertical-Horizontal Air Handling Indoor Unit Refrigerant Flow Diagram.
PAGE 146
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Wiring Diagram Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH 0XOWL ) 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ ,QGRRU 8QLW :LULQJ 'LDJUDP : Factory Wiring : Field Wiring : OPTION 7DEOH :LULQJ 'LDJUDP &RQQHFWLRQV 146 Connection Name Location Function &1 32:(5 AC power supply AC Power line input for indoor controller CN-MOTOR1 Fan motor output Motor output of BLDC CN-MOTOR2 Fan motor output Motor output of BLDC CN-FLOAT Float
PAGE 147
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Wiring Diagram 7DEOH DIP Switch Settings. Dip Switch Settings 6: GROUP OFF ON Description Master Slave Group control setting using wired remote controller. Dry contact mode setting. 1. 9DULDEOH $XWR PDQXDO PRGH FDQ EH FKRVHQ XVLQJ WKH ZLGH ZLUHG remote controller or wireless remote controller (factory setting is the manual mode). 2. $XWR )RU GU\ FRQWDFW LW LV DOZD\V DXWR PRGH DRY CONTACT Variable Auto 6: EXTRA1 Off On • 21 )DQ RSHUDW
PAGE 148
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Factory Supplied Parts and Materials Factory Supplied Materials Multi F and Multi F MAX Indoor Unit Engineering Manual • Owner’s Manual • Installation Manual Required Tools • • • • • Level Screwdriver Electric drill Hole core drill Flaring tool set • • • • Torque wrenches Hexagonal wrench Gas-leak detector Thermometer WARNING ,QVWDOODWLRQ ZRUN PXVW EH SHUIRUPHG E\ WUDLQHG SHUVRQQHO DQG LQ DFFRUGDQFH ZLWK QDWLRQDO ZLULQJ VWDQGDUGV DQG DOO ORFDO RU RWKHU
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MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Installation and Best Layout Practices )LJXUH General and Duct Connection Dimensions. )LJXUH Clearance Requirements.
PAGE 150
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Installation and Best Layout Practices 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ 8QLWV FDQ EH LQVWDOOHG LQ D FKRLFH RI YHUWLFDO XSÀRZ RU KRUL]RQWDO OHIW VLGH FRQ¿JXUDWLRQV Vertical (Upflow) Installation )LJXUH Vertical Installation / Attaching the Bottom Duct. • Unit must be positioned properly for plenum / duct installation.
PAGE 151
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Installing the Ducts )LJXUH Securing the Ducts to the Unit. • Use more than ten (10) screws to securely attach the supply ducts to the unit. To prevent air leaks, seal around the duct opening before the duct is secure. • To prevent vibration transmission, install flexible connectors between ducts and the unit.
PAGE 152
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Field-Installed U-Trap Specifications Drain Piping Specifications • Drain piping must have downward gradient of at least 1/50 to 1/100; to prevent reverse flow, slope must not be straight up and down. • Do not damage the drain port on the indoor unit when connecting the field-supplied drain piping. Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH Close up of Drain Piping Connection.
PAGE 153
MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Power Wiring / Communications Cable Guidelines • • • • • • • Follow manufacturer’s circuit diagrams in the technical manuals. 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.
PAGE 154
TWO-WAY VAHU INDOOR UNITS Installation and Best Layout Practices MULTI F MULTI F MAX Controller Options Vertical-Horizontal Air Handling indoor units can be used with many LG-supplied wired controllers (sold separately). The wireless handheld FRQWUROOHU 0RGHO 1R 34:5+4 )'% LV DOVR DQ RSWLRQDO DFFHVVRU\ ZLWK XVH RI WKH ZLUHG FRQWUROOHU Controllers can connect to the indoor unit in one of two different ways. 1. /* :LUHG 5HPRWH ([WHQVLRQ &DEOH ZLWK 0ROH[ SOXJ 3=&:5& VROG VHSDUDWHO\ WKDW FRQQHFWV WR
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MULTI F MULTI F MAX TWO-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Wired Controller Placement :LUHG FRQWUROOHUV LQFOXGH D VHQVRU WR GHWHFW URRP WHPSHUDWXUH 7R PDLQWDLQ comfort levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air.
PAGE 156
Multi F and Multi F MAX Indoor Unit Engineering Manual MULTI F MULTI F MAX 156 | VERTICAL-HORIZONTAL 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ ©/* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/*´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS
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)285 :$< 9(57,&$/ +25,=217$/ AIR HANDLING INDOOR UNIT DATA “Mechanical Specifications” on page 158 “General Data / Specifications” on page 159 “Dimensions” on page 160 “Cooling Capacity Table” on page 161 “Heating Capacity Table” on page 163 “External Static Pressure” on page 166 “Heater Capacities” on page 168 “Acoustic Data” on page 169 “Refrigerant Flow Diagram” on page 171 “Wiring Diagram” on page 172 “Factory Supplied Parts and Materials” on page 174 “Installation and Best Layout Practices” on page 1
PAGE 158
MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Four-way Vertical-Horizontal Air Handing Indoor Unit Fan Assembly and Control )LJXUH Multi F Vertical-Horizontal Air Handling Indoor Unit. The units have an integral fan assembly consisting of galvaAll LG indoor units are factory assembled, wired, piped, and pronized steel housing and a forward vided with a control circuit board, fan, and motor. Vertical-Horizontal curve fan wheel.
PAGE 159
MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV 7DEOH Multi F Vertical-Horizontal Air Handling Indoor Unit General Data. Model Name LVN180HV4 LVN240HV4 LVN360HV4 18,000 24,000 36,000 20,000 27,000 40,000 57-77 57-77 57-77 59-81 59-81 59-81 Type Sirocco Sirocco Sirocco 0RWRU 2XWSXW : [ 4W\ 198 x 1 198 x 1 400 x 1 Brushless Digitally Controlled / Direct Brushless Digitally Controlled / Direct Brushless Digitally Controlled / Direct 640 / 580 / 48
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Dimensions )LJXUH Four-way Vertical Air Handling Unit Dimensions.
PAGE 161
MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Cooling Capacity Table 7DEOH Multi F Vertical-Horizontal Air Handling Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LVN240HV4 24,000 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 23.53 23.51 23.49 23.47 23.46 23.44 23.42 23.40 23.38 23.37 23.35 23.33 22.77 22.21 21.65 21.09 20.49 19.99 19.49 18.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Cooling Capacity Table 7DEOH 0XOWL ) 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ ,QGRRU 8QLWV &RROLQJ &DSDFLW\ 7DEOH FRQWLQXHG Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LVN360HV4 18,000 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC SHC 35.29 35.26 35.24 35.21 35.18 35.16 35.13 35.10 35.08 35.05 35.02 34.99 34.15 33.31 32.48 31.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Heating Capacity Table 7DEOH Multi F Vertical-Horizontal Air Handling Indoor Units Heating Capacity Table. Model No. / Nominal Capacity of Indoor Unit (Btu/h) LVN240HV4 24,000 64 TC Indoor Air Temp. °F DB 68 70 TC TC °F DB ) :% 61 TC 72 TC 75 TC 0 -0.4 10.29 10.14 10.05 10.00 9.86 9.42 5 4.5 11.59 11.45 11.35 11.30 11.16 10.72 12.03 10 9 12.90 12.75 12.66 12.61 12.46 17 15 14.64 14.49 14.40 14.35 14.20 13.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Heating Capacity Table 7DEOH 0XOWL ) 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ ,QGRRU 8QLWV +HDWLQJ &DSDFLW\ 7DEOH FRQWLQXHG Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LVN360HV4 36,000 Outdoor Air Temp. 61 TC 64 TC Indoor Air Temp. °F DB 68 70 TC TC 72 TC 75 TC °F DB ) :% 0 -0.4 20.58 20.29 20.10 20.00 19.71 18.84 5 4.5 23.19 22.90 22.71 22.61 22.32 21.45 24.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS ([WHUQDO 6WDWLF 3UHVVXUH DQG $LUÀRZ 5DQJHV )LJXUH ESP Setting Values – NJ Chassis, LVN180HV4, LVN240HV4 Vertical-Horizontal Air Handling Unit )LJXUH ESP Setting Values – NK Chassis, LVN360HV4. '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 VERTICAL-HORIZONTAL | 165
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS External Static Pressure 7DEOH Multi F Vertical-Horizontal Air Handling Unit External Static Pressure Setting Values Table. Static Pressure (in. wg) 0.1 0.2 0.3 0.4 Model No. / Nominal Capacity Airflow Rate / CFM of Indoor Unit (Btu/h) High Mid Low High Mid Low High Mid Low Multi F and Multi F MAX Indoor Unit Engineering Manual LVN180HV4 18,000 LVN240HV4 24,000 LVN360HV4 36,000 640 580 480 710 640 480 1,100 1,000 900 0.5 0.6 0.7 0.8 0.9 1.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS External Static Pressure 7DEOH Electric Heater Static Pressure Drop Factors. Heater Capacity Static Pressure Drop (in. wg) 0 0 3, 5 -0.01 8, 10 -0.02 15 -0.03 20 -0.04 Vertical-Horizontal Air Handling Unit If the electric heater optional accessory is installed, adjust ESP value according to heater size For every increase in static pressure by 0.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Heater Capacities Multi F and Multi F MAX Indoor Unit Engineering Manual 7DEOH Optional Electric Heater Capacities. +HDWHU &DSDFLW\ N: 3 5 8 10 15 20 Static Pressure Drop (in. wg) ANEH033B1 ANEH053B1 ANEH083B2 ANEH103B2 ANEH153B2 ANEH203B2 )LJXUH Typical Vertical Air Handling Unit Optional Electric Heater Accessory.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Acoustic Data )LJXUH Sound Pressure Level Measurement Location. Microphone • 0HDVXUHPHQW WDNHQ ƍ DZD\ IURP WKH XQLW • Sound pressure levels are measured in dB(A). • Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745.
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FOUR-WAY VAHU INDOOR UNITS Acoustic Data MULTI F MULTI F MAX Multi F and Multi F MAX Indoor Unit Engineering Manual 7DEOH Vertical Air Handling Unit Sound Power Levels (dB[A]). Model No. Sound Power Levels (dB[A]) High Fan Speed LVN180HV4 LVN240HV4 LVN360HV4 59 60 61 )LJXUH Sound Power Level Diagrams. LVN180HV4 170 | VERTICAL-HORIZONTAL • Data is valid under diffuse field conditions. • Data is valid under nominal operating conditions.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Refrigerant Flow Diagram )LJXUH Four-way Vertical-Horizontal Air Handling Indoor Unit Refrigerant Flow Diagram. Scirocco Fan M Vapor Pipe Connection Port Heat Exchanger (Flare Connection) Heating Ev.
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FOUR-WAY VAHU INDOOR UNITS Wiring Diagram Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH )RXU ZD\ 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ ,QGRRU 8QLW :LULQJ 'LDJUDP 172 | VERTICAL-HORIZONTAL '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 MULTI F MULTI F MAX
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Wiring Diagram 7DEOH :LULQJ 'LDJUDP &RQQHFWLRQV Connection Name Location Function &1 32:(5 AC power supply AC Power line CN-MOTOR1 Fan motor output Motor output of BLDC CN_OUT Heater Connection for heater CN-D/PUMP Drain pump output AC output for drain pump CN-FLOAT Float switch input Float switch sensing &1 =21( =RQH FRQWUROOHU =RQH FRQWUROOHU FRQQHFWLRQ Optional PCB EPROM Option PCB connection CN-EXT External ON / OFF controlle
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Factory Supplied Parts and Materials Factory Supplied Materials Multi F and Multi F MAX Indoor Unit Engineering Manual • Owner’s Manual • Installation Manual Required Tools • • • • • Level Screwdriver Electric drill Hole core drill Flaring tool set • • • • Torque wrenches Hexagonal wrench Gas-leak detector Thermometer WARNING ,QVWDOODWLRQ ZRUN PXVW EH SHUIRUPHG E\ WUDLQHG SHUVRQQHO DQG LQ DFFRUGDQFH ZLWK QDWLRQDO ZLULQJ VWDQGDUGV DQG DOO ORFDO RU RWKHU
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Installation and Best Layout Practices )LJXUH General and Duct Connection Dimensions. )LJXUH Clearance Requirements.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Multi F and Multi F MAX Indoor Unit Engineering Manual Installation and Best Layout Practices 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ 8QLWV FDQ EH LQVWDOOHG LQ D FKRLFH RI YHUWLFDO XSÀRZ YHUWLFDO GRZQÀRZ ZLWK RSWLRQDO GRZQÀRZ NLW RU KRUL]RQWDO OHIW RU ULJKW VLGH FRQ¿JXUDWLRQV )LJXUH Vertical Installation / Vertical (Upflow) Installation Attaching the Bottom Duct. • Unit must be positioned properly for plenum / duct installation.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Horizontal Installation )LJXUH Typical Horizontal Left Installation. Field-Supplied Supply Air Duct Field Supplied Return Air Duct / Plenum >3/8 inch Threaded Rod >1-1/2 inch x 1-1/2 inch Angle A B Recommended length >26 inches with a 2-inch clearance on both sides of the unit C Suspension Bolt Locations )LJXUH Typical Horizontal Right Installation.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Installing the Ducts )LJXUH Securing the Ducts to the Unit. • Use more than ten (10) screws to securely attach the supply ducts to the unit. To prevent air leaks, seal around the duct opening before the duct is secure. Multi F and Multi F MAX Indoor Unit Engineering Manual • To prevent vibration transmission, install flexible connectors between ducts and the unit.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Field-Installed U-Trap Specifications Drain Piping Specifications • Drain piping must have downward gradient of at least 1/50 to 1/100; to prevent reverse flow, slope must not be straight up and down. • Do not damage the drain port on the indoor unit when connecting the field-supplied drain piping. )LJXUH Close up of Drain Piping Connection.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Installation and Best Layout Practices • • • • • • • Follow manufacturer’s circuit diagrams in the technical manuals. 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. It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Controller Options Vertical-Horizontal Air Handling indoor units can be used with many LG-supplied wired controllers (sold separately). The wireless handheld FRQWUROOHU 0RGHO 1R 34:5+4 )'% LV DOVR DQ RSWLRQDO DFFHVVRU\ ZLWK XVH RI WKH ZLUHG FRQWUROOHU Wired Controller Connections Controllers can connect to the indoor unit in one of two different ways. 1.
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MULTI F MULTI F MAX FOUR-WAY VAHU INDOOR UNITS Installation and Best Layout Practices Wired Controller Placement Multi F and Multi F MAX Indoor Unit Engineering Manual :LUHG FRQWUROOHUV LQFOXGH D VHQVRU WR GHWHFW URRP WHPSHUDWXUH 7R PDLQWDLQ comfort levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air.
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MULTI F MULTI F MAX Vertical-Horizontal Air Handling 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 VERTICAL-HORIZONTAL | 183
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APPLICATION GUIDELINES “Equipment Selection Procedure” on page 185 “Placement Considerations” on page 192
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE To choose the multi-zone system that is the most appropriate for the space, as with traditional air-conditioning systems, follow similar protocols outlined in Manual J from the Air Conditioning Contractors of America (ACCA; see www.acca.org). 1. Obtain the design conditions, and calculate the maximum cool and heat loads for the structure. 2. 6HOHFW WKH HTXLSPHQW FKRRVLQJ WKH DSSURSULDWH LQGRRU XQLWV DQG RXWGRRU XQLW • Determine number of zones.
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE Multiplier Examples Multi F and Multi F MAX Indoor Unit Engineering Manual Example 1 Branch Distribution Unit (PMBD3641) Outdoor Unit: LMU540HV First Indoor Unit: + Second Indoor Unit: + Third Indoor Unit: LMCN125HV LSN090HSV4 LVN360HV4 Total Capacity Index = 12 + 9 Branch Distribution Unit (PMBD3620) Example 2 + 36 x 1.3 Outdoor Unit: LMU540HV Total Capacity Index = = 67.
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE 7DEOH Allowable Indoor Unit to Multi F / Multi F MAX with LGRED Outdoor Unit Connections. Indoor units Model Type ART COOL Mirror ART COOL Gallery 6WDQGDUG :DOO 0RXQWHG Ceiling Concealed DuctHigh Static )RXU :D\ &HLOLQJ &DVVHWWH Vertical-Horizontal Air Handler 9,000 12,000 18,000 9,000 12,000 7,000 9,000 12,000 15,000 18,000 24,000 9,000 12,000 18,000 24,000 36,000 7,000 9,000 12,000 18,000 18,000 24,000 36,000 2 O O O O O O O O O O O O O - Outd
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE 7DEOH Multi F / Multi F MAX with LGRED Rated Outdoor Unit Capacity. Multi F and Multi F MAX Indoor Unit Engineering Manual Rated Capacity %WX K Connectable Indoor Units Cooling Heating Minimum No. of Connectable IDUs Maximum No.
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE Using the System Combination Tables Multi F system combination tables illustrate how each indoor unit receives a percentage of total outdoor unit rated capacity.
PAGE 190
MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE 7DEOH Multi F MAX / Multi F MAX with LGRED Outdoor Unit to Branch Distribution Unit Refrigerant Line Length Derates. Main Piping Length (feet) 16.4 32.8 49.2 65.6 82.0 98.4 114.8 131.2 147.6 164.0 180.4 Cooling Capacity (%) 100.0 98.8 97.3 95.8 94.3 92.8 91.3 89.8 88.3 86.8 85.3 Heating Capacity (%) 100.0 99.6 99.2 98.7 98.3 97.8 97.4 96.9 96.5 96.0 95.
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE Altitude Correction Factor The impact of air density must be considered on systems installed at a significant altitude above sea level, therefore, locally accepted altitude correction factors must be applied. Defrost Correction Factor for Heating Operation The outdoor unit heating capacity will need to be adjusted for frost accumulation on air-cooled systems.
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PLACEMENT CONSIDERATIONS MULTI F MULTI F MAX Selecting the Best Location for the Indoor Units Multi F and Multi F MAX Indoor Unit Engineering Manual Note: 6HOHFW D ORFDWLRQ IRU LQVWDOOLQJ WKH LQGRRU XQLWV WKDW ZLOO PHHW WKH IROORZLQJ FRQGLWLRQV • Indoor Units (IDUs) must not be placed in an environment where the IDUs will be exposed to harmful volatile organic compounds (VOCs) or in environments where there is improper air make up or supply or inadequate ventilation.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Selecting the Best Location for the Outdoor Unit, continued. • :KHUH SLSLQJ EHWZHHQ WKH RXWGRRU XQLW LQGRRU XQLW V DQG %' XQLWV 0XOWL ) 0$; V\VWHPV RQO\ DUH ZLWKLQ DOORZDEOH OLPLWV • Include space for drainage to ensure condensate flows properly out of the unit when it is in heating mode. Avoid placing the outdoor unit in a low-lying area where water could accumulate.
PAGE 194
MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Outdoor Unit Platform Requirements )LJXUH Outdoor Unit Foundation Requirements.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Tie-Downs and Lightening Protection )LJXUH Lightening Protection Diagram. Tie-Downs • The strength of the roof must be checked before installing the outdoor units. • If the installation site is prone to high winds or earthquakes, when installing on the wall or roof, securely anchor the mounting base using a field-provided tie-down configuration approved by a local professional engineer.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Clearance Requirements when Different Obstacles are Present (Unit: Inch). " m u inim 11 /16 -13 Obstacles on the suction side and on both left and right sides. Min imu m1 1-1 3/16 " M 6" 13/1 Min imu 1m1 imu m2 Min 3-1 9/32 " Obstacles above and on the air intake side.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Clearance Requirements when Different Obstacles are Present, continued. (Unit: Inch) Where there are obstacles on both suction and discharge sides (discharge side obstacle is higher than the outdoor unit). Where there are obstacles above, and on both suction and discharge sides (discharge side obstacle is higher than the outdoor unit). " 1/16 9-1 1 mum 7DEOH Ratio among H, A, and L.
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REFRIGERANT PIPING DESIGN & LAYOUT BEST PRACTICES “Design Guideline Summary” on page 199 “Creating a Balanced System” on page 203 “Condensate Drain Piping” on page 204
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Design Guideline Summary 7KH IROORZLQJ DUH H[DPSOHV RI PDQXDO SLSH VL]H FDOFXODWLRQV 'HVLJQHUV DUH KLJKO\ HQFRXUDJHG WR XVH /$76 IRU 0XOWL ) V\VWHPV Device Connection Limitations • The minimum number of connected and operating indoor units to Multi F / Multi F MAX systems is two, taking into consideration of the minimum combination ratio. • 7KH PD[LPXP QXPEHU RI LQGRRU XQLWV IRU HDFK 0XOWL ) 0XOWL ) 0$; KHDW SXPS V\VWHPV LV LMU18CHV = 2 LMU24CHV = 3 LM
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Design Guideline Summary 7KH IROORZLQJ DUH H[DPSOHV RI PDQXDO SLSH VL]H FDOFXODWLRQV 'HVLJQHUV DUH KLJKO\ HQFRXUDJHG WR XVH /$76 IRU 0XOWL ) V\VWHPV Multi F MAX System with One Branch Distribution Unit 2'8 2XWGRRU 8QLW ,'8 ,QGRRU 8QLW %'8 %UDQFK 'LVWULEXWLRQ 8QLW $ 0DLQ 3LSH % %UDQFK 3LSH %UDQFK 'LVWULEXWLRQ 8QLW WR Indoor Unit[s]). ODU IDU BDU A B h2 ≤ 49.2 feet IDU B IDU h1 ≤ 98.4 feet B h3 ≤ 32.
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Design Guideline Summary 7KH IROORZLQJ DUH H[DPSOHV RI PDQXDO SLSH VL]H FDOFXODWLRQV 'HVLJQHUV DUH KLJKO\ HQFRXUDJHG WR XVH /$76 IRU 0XOWL ) V\VWHPV Multi F with LGRED System ([DPSOH /08 ++9 RXWGRRU XQLW ZLWK IRXU indoor units connected. 2'8 2XWGRRU 8QLW ,'8 ,QGRRU 8QLW $ % & ' 3LSHV IURP 2XWGRRU 8QLW WR ,QGRRU 8QLW A Max. 24.6 feet C D 7DEOH Multi F with LGRED Outdoor Unit Refrigerant Piping System Limitations.
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Design Guideline Summary 7KH IROORZLQJ DUH H[DPSOHV RI PDQXDO SLSH VL]H FDOFXODWLRQV 'HVLJQHUV DUH KLJKO\ HQFRXUDJHG WR XVH /$76 IRU 0XOWL ) V\VWHPV Multi F MAX with LGRED System with Two Branch Distribution Units A Y-Branch IDU BDU B A IDU B IDU K IHHW B A h2 IHHW 2'8 2XWGRRU 8QLW ,'8 ,QGRRU 8QLW %'8 %UDQFK 'LVWULEXWLRQ 8QLW V Ȉ$ 0DLQ 3LSH Ȉ% %UDQFK 3LSH %UDQFK 'LVWULEXWLRQ 8QLW>V@ WR Indoor Unit[s]).
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Creating a Balanced System / Manual Layout Procedure Creating a Balanced / Quality Piping System Unlike designing duct-work or chilled and hot water pipe systems where balancing dampers, ball valves, orifices, circuit setters, or other flow control devices can be installed to modify or balance the flow of cooling medium, these cannot be used in a Multi F system. Therefore, variable refrigerant flow systems have to be designed to be “self balanced.
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Condensate Drain Piping Condensate Drain Piping Indoor Units All indoor units generate water during cooling operation, therefore, how to properly handle this condensation must be considered. Some indoor units include factory-installed drain pumps; others apply the gravity drain method. Indoor Unit Drain Type Drain Pipe Diameter (OD / ID, in.) Drain Amount (gal. / min. at 0.033 ft.
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ELECTRICAL CONNECTIONS “General Information” on page 206 “Power Wiring (208-230V) and Communications Cable Details” on page 209 “Remote Controller Connections” on page 219 “Indoor Unit Group Control” on page 220
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ELECTRICAL CONNECTIONS Multi F and Multi F MAX Indoor Unit Engineering Manual General Information MULTI F MULTI F MAX • $OO SRZHU OLQH YROWDJH ZLULQJ DQG FRPPXQLFDWLRQ FDEOH LQVWDOODWLRQ PXVW EH SHUIRUPHG E\ WUDLQHG VHUYLFH SURYLGHUV ZRUNLQJ LQ DFFRUGDQFH ZLWK DOO ORFDO VWDWH DQG 1DWLRQDO (OHFWULFDO &RGH 1(& 8/ (7/ IHGHUDO UHJXODWLRQV UHODWHG WR HOHFWULFDO HTXLSPHQW DQG ZLULQJ DQG IROORZ LQJ WKH PDQXIDFWXUHU SURGXFW GLDJUDPV UHTXLUHPHQWV DQG LQVWUXFWLRQV LQ WKLV PDQXDO (OHFWULF VKRFN FDQ
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS General Information Communication / Connection (Power) Cable Specifications Multi F Systems: • Communication / connection (power) cable from the outdoor unit to the indoor unit for OHQJWKV XS WR IHHW PXVW XVH D PLQLPXP RI $:* IRXU FRQGXFWRU VWUDQGHG shielded or unshielded (if shielded, it must be grounded to the chassis of the outdoor unit only), and must comply with applicable local and national codes.
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS General Information )LJXUH Typical Multi F System General Power / Communications 6\VWHP 6FKHPDWLF :KHQ :LULQJ LV /HVV 7KDQ )HHW Indoor Units )LJXUH Typical Multi F MAX System General Power / CommunicaWLRQV 6\VWHP 6FKHPDWLF :KHQ :LULQJ LV /HVV 7KDQ )HHW Indoor Unit Branch Distribution Unit Power Supply Multi F and Multi F MAX Indoor Unit Engineering Manual Power Supply Circuit Breaker Circuit Breaker Branch Distribution Unit Ground Wiring
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) /08 &+9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH L1 L2 Power Supply Main Switch Outdoor Unit G Circuit Breaker L1 L2 Outdoor Unit Terminal Block G L1 Fuse L2 1(L1) 2(L2) 3(A) 1(L1) 2(L2) 3(B) Three-wire Power Wiring (Including Ground) COMMUNICATION CABLE 1(L1) 2(L2) 3 1(L1) 2(L2) Wiring Connections POWER WIRING 3 Indoor Unit Terminal Block Indoor Unit Terminal B
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ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details MULTI F MULTI F MAX )LJXUH 0XOWL ) /08 &+9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH L1 L2 Power Supply Main Switch Multi F and Multi F MAX Indoor Unit Engineering Manual G Circuit Breaker L1 Outdoor Unit L2 G Outdoor Unit Terminal Block L1 Fuse L2 1(L1) 2(L2) 3(A) 3(B) 1(L1) 2(L2) 3(C) Three-wire Power Wiring (Including Ground) 1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3 Indoor Unit Terminal Block
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) /08 &+9 DQG /08 &+9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH L1 L2 Power Supply Main Switch G Outdoor Unit Circuit Breaker L1 Outdoor Unit Terminal Block L2 G L1 L2 Fuse 1(L1) 2(L2) 3(A) 1(L1) 2(L2) 3(B) 1(L1) 2(L2) 3(C) 1(L1) 2(L2) 3(D) Three-wire Power Wiring (Including Ground) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) Wiring Connections 1(L1) 3 Indo
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) 0$; /08 +9 DQG /08 +9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH L N Power Supply Main Switch Outdoor unit Circuit Breaker L Outdoor Unit Terminal Block N G Multi F and Multi F MAX Indoor Unit Engineering Manual L1 Three-wire Power Wiring (Including Ground) L2 1( L1 ) 2 (L2 ) 3 (A ) 1( L1 ) 2 (L2 ) 3 (B) Fuse Branch Distribution Unit (B) Branch Distribution Unit (A)
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) 0$; /08 +9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH L N Power Supply Main Switch Outdoor unit Outdoor Unit Terminal Block Circuit Breaker L N G L1 Three-wire Power Wiring (Including Ground) L2 1( L1 ) 2 (L2 ) 3 (A ) 3 (B) Fuse Wiring Connections Branch Distribution Unit (B) Branch Distribution Unit (A) 1(L1) 2(L2) 1(L1) 2(L2) S S * Same Wiring as Branch Distribution
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH Multi F with LGRED System General Power / Communications System Schematic. Indoor Units Multi F and Multi F MAX Indoor Unit Engineering Manual Power Supply Circuit Breaker Ground Wiring Outdoor Unit )LJXUH Multi F MAX with LGRED System General Power / Communications System Schematic.
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) ZLWK /*5(' /08 ++9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH &RQQHFWLRQV L1 L2 Power Supply Main Switch Outdoor Unit G L1 Circuit Breaker Outdoor Unit Terminal Block L2 L1 Fuse L2 G 1(L1) 2(L2) 3(A) G 1(L1) POWER WIRING COMMUNICATION CABLE 2(L2) 3 1(L1) 2(L2) G Wiring Connections Three-wire Power Wiring (Including Ground) 1(L1) 2(L2) 3(B) 3 Indoor Unit Terminal
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) ZLWK /*5(' /08 ++9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH &RQQHFWLRQV L1 L2 Power Supply Multi F and Multi F MAX Indoor Unit Engineering Manual Main Switch Outdoor Unit G Circuit Breaker L1 Outdoor Unit Terminal Block L2 L1 Fuse L2 G 1(L1) 2(L2) 3(A) Three-wire Power Wiring (Including Ground) POWER WIRING COMMUNICATION CABLE 1(L1) 2(L2) 3(B) G 1(L1) 2(L2) 3 1(
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) ZLWK /*5(' /08 ++9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH &RQQHFWLRQV L1 L2 Power Supply Main Switch Outdoor Unit G Circuit Breaker L1 Outdoor Unit Terminal Block L2 L1 Fuse L2 G 1(L1) 2(L2) 3(A) Three-wire Power Wiring (Including Ground) COMMUNICATION CABLE G 1(L1) 2(L2) 3 1(L1) 2(L2) 1(L1) 2(L2) 3(C) G 3 1(L1) 2(L2) 3(D) G 1(L1) 2(L2) G 3 1(L1) 2(L2)
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Power Wiring (208-230V) and Communications Cable Details )LJXUH 0XOWL ) 0$; ZLWK /*5(' /08 ++9 DQG /08 ++9 6\VWHP 3RZHU :LULQJ DQG &RPPXQLFDWLRQV &DEOH &RQQHFWLRQV L N Power Supply Main Switch Outdoor Unit Multi F and Multi F MAX Indoor Unit Engineering Manual Outdoor Unit Terminal Block Circuit Breaker L N G L1 Three-wire Power Wiring (Including Ground) 1(L1) 2(L2) 3(A) 3(B) L2 Fuse Branch Distribution Unit (B) Branch Distribution Unit (A)
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Remote Controller Connections From Indoor Units to Remote Controllers • &RPPXQLFDWLRQ FDEOH IURP LQGRRU XQLW WR UHPRWH FRQWUROOHU V LV WR EH $:* FRQGXFWRU WZLVWHG VWUDQGHG XQVKLHOGHG :LULQJ PXVW comply with all applicable local and national codes. • If using the LG Controller / Extension cable and the length needs to be further extended, the LG Extension Kit (sold separately) must be used. A maximum of four (4) kits (up to 165 feet) can be used.
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MULTI F MULTI F MAX ELECTRICAL CONNECTIONS Indoor Unit Group Control Between Multiple Indoor Units Operating as a Group (Group Control) )LJXUH ([DPSOH RI ,QGRRU 8QLW *URXS WR =RQH Controller Connections (Sig-12V-GND [Comm.] Terminal). Multi F and Multi F MAX Indoor Unit Engineering Manual If any indoor units were specified to operate in unison: • Before running cable, decide which indoor unit will be the “Master.” The other indoor units in that group will be designated as “Slave(s).
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MULTI F MULTI F MAX ACRONYMS 7DEOH Table of Acronyms.
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Air Conditioning Technologies 4300 North Point Parkway Alpharetta, Georgia 30022 www.lghvac.com LG Electronics Products Support 1-888-865-3026 USA Follow the prompts for HVAC products.