Engineering Manual

ManualsBrandsLG ManualsAir ConditionerLG LG2ZMSS36

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

Summary of content (221 pages)

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MULTI F MULTI F MAX INDOOR UNIT ENGINEERING MANUAL 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_7_16 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 Convergence of Technology, Innovation, Flexibility, & Style .................................................... 4 Unit Nomenclature....................................................................... 5 Functions, Controls, and Options.............................................. 6 Art Cool Mirror Indoor Units ....................................................... 9 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV ........................................... 10 *HQHUDO 'DWD 6SHFL¿FDWLRQV ...
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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 6 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. Controllers Operation Filter Multi F and Multi F MAX Indoor Unit Engineering Manual $LUÀRZ Indoor Unit Type Air supply outlets Airflow direction (left/right) Airflow direction (up/down) Auto swing (left/right) Auto swing (up/down) Airflow steps (fan/cool/heat) Chaos wind (random fan speed) Jet-cool Swirl wind :DVKDEOH DQWL IXQJDO1 Plasma2 3M HAF2 Ventilation Drain pump E.S.P.
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MULTI F MULTI F MAX FUNCTIONS, CONTROLS AND OPTIONS OVERVIEW 7DEOH Indoor Unit Accessories Overview. Model No. )RU )RXU :D\ &HLOLQJ &DVVHWWH ,QGRRU 8QLWV Description 37 4&+: PT-UQC PTVK430 Ceiling Grille Ceiling Grille Flange for All Capacities )RU 9HUWLFDO +RUL]RQWDO $LU +DQGLQJ 8QLWV ANEH053B1 ANEH103B2 N: (OHFWULF +HDWHU N: (OHFWULF +HDWHU )RU &HLOLQJ &RQFHDOHG 'XFW +LJK 6WDWLF ,QGRRU 8QLWV High Efficiency Filter Box Dynamic V8 2VL Low Profile Air Cleaner Dynamic 2VL Air Cleaner Low Pr
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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 20 “Wiring Diagram” on page 21 “Factory Supplied Parts and Materials” on page 23 “Installation and Best Layout Practices” on page 24
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Figure 1: Multi F Art Cool Mirror Wall-Mounted Indoor Unit. ART COOL Mirror Wall-Mounted Indoor Units 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 Wall-Mounted indoor units have a sound rating no higher than 39 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 Table 3: Multi F Art Cool Mirror Indoor Unit General Data.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS 'LPHQVLRQV Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 2: LAN090HSV4 and LAN120HSV4 Dimensions. 3 8-1/16 1-3/4 2 1 2-5/32 1-31/32 2-13/32(60) 11-1/4 34-13/16 1-3/4 29/32(23) 2-5/16(59.5) 6-5/16(159.5) 4 Place a level on raised tab Unit Outline 17-13/32 17-13/32 Ø2-9/16 Ø2-9/16 Right rear piping Left rear piping 5 3-11/16 5-3/16 6-29/32 Note: 1. Install the unit according to the included installation manual. 2.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS 'LPHQVLRQV Figure 3: LAN180HSV4 Dimensions. 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 ART COOL MIRROR | 13
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 4: 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) 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 | ART COOL MIRROR 6.04 6.09 6.13 6.18 6.23 6.28 6.32 6.37 6.42 6.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 5: 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) 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 11.27 10.93 10.85 10.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS +HDWLQJ &DSDFLW\ 7DEOH Table 6: 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 °F WB 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 $FRXVWLF 'DWD Figure 4: 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 $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 6: LAN090HSV4 Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle : 40° Discharge angle : 15° Air velocity (ft/s) Air velocity (ft/s) 8.9 ft 8.9 ft Multi F and Multi F MAX Indoor Unit Engineering Manual 6.6 ft 8.2 6.6 16.4 ft 13.1 ft 3.3 ft 3.3 ft 4.9 4.9 4.9 3.3 9.8 ft 6.6 ft 8.2 6.6 ft 3.3 ft 0 ft 0 ft 3.3 16.4 ft 13.1 ft 9.8 ft 6.6 ft 3.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 8: LAN180HSV4 Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle : 40° Discharge angle : 15° Air velocity (ft/s) Air velocity (ft/s) 8.9 ft 8.9 ft 6.6 ft 6.6 4.9 3.3 4.9 3.3 ft 1.6 1.6 1.6 16.4 ft 13.1 ft 9.8 ft 6.6 ft 3.3 ft 0 ft 0 ft 16.4 ft 13.1 ft 8.9 ft 9.8 ft 6.6 ft 3.3 ft 0 ft 0 ft 6.6 ft 53.6 93.2 57.2 111.2 3.3 ft 9.8 ft 96.8 6.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS 5HIULJHUDQW )ORZ 'LDJUDP Figure 9: Art Cool Mirror Indoor Unit Refrigerant Flow Diagram.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS :LULQJ 'LDJUDP Figure 10: Multi F Art Cool Mirror LAN090HSV4 and LAN120HSV4 Indoor Units Wiring Diagram. 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 ART COOL MIRROR | 21
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ART COOL MIRROR INDOOR UNITS :LULQJ 'LDJUDP Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 11: Multi F Art Cool Mirror LAN180HSV4 Indoor Unit Wiring Diagram. 22 | 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 )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV Factory Supplied Parts Table 11: Parts Table. Part 4XDQWLW\ Installation Plate One (1) Image LAN090HSV4 and LAN120HSV4 Five (5) Type “B” Screws 0 [ / Two (2) Wireless Handheld Controller with Holder AKB73835317 One (1) Art Cool Mirror™ Type “A” Screws LAN180HSV4 Factory Supplied Materials Required Tools • Owner’s Manual • Installation Manual • • • • Level Screwdriver Electric drill Hole core drill •
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV DANGER Select a location for installing the wall-mounted indoor unit (IDU) that meets the following conditions: • Where there is enough structural strength to bear the weight of the unit • Where air circulation will not be blocked • Where noise prevention is taken into consideration • Ensure there is sufficient space from the ceiling and floor • Locate the indoor unit in a location where it can be easily connected to t
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Drilling Piping Hole in the Wall Figure 21: Drilling Piping Hole WALL Indoor Core Drill Bushing Sleeve Figure 15: Locking the Indoor Unit onto the Installation Plate. Hanging the Indoor Unit Chassis Art Cool Mirror™ 1. Attach the three (3) hooks on the top of the indoor unit to the top edge of the installation plate.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Connecting the Indoor Unit Piping to the Field-Installed Piping Multi F and Multi F MAX Indoor Unit Engineering Manual Note: 7KH SLSH FRQQHFWLRQ VL]HV RQ WKH /$1 +69 DUH GLIIHUHQW WKDQ WKH UHTXLUHG ¿HOG LQVWDOOHG SLSLQJ VL]HV $Q DGDSWHU LV UHTXLUHG DQG LV VXSSOLHG ZLWK the unit. Refer to the unit installation manual for details. 1.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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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ART COOL MIRROR INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Wireless Handheld Controller Table 12: AKB73835317 Wireless Controller Functions. Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 30: AKB73835317 Wireless Controller. 28 | 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
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Wired Controller Connections Figure 31: Wired Controller Connection on the Indoor Unit Terminal Block—LAN090HSV4 and LAN120HSV4 models. Figure 32: Wired Controller Connection on the Indoor Unit Terminal Block—LAN180HSV4 models.
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MULTI F MULTI F MAX ART COOL MIRROR INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 34: 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 directions: top, back, or on the right side. If top or right side installation is desired, remove cable guide grooves on the controller, and then position wiring/cable on applicable side.
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ART COOL GALLERY INDOOR UNIT DATA ™ “Mechanical Specifications” on page 32 “General Data / Specifications” on page 33 “Dimensions” on page 34 “Cooling Capacity Table” on page 35 “Heating Capacity Table” on page 36 “Acoustic Data” on page 37 “Air Velocity and Temperature Distribution” on page 38 “Refrigerant Flow Diagram” on page 39 “Wiring Diagram” on page 40 “Factory Supplied Parts and Materials” on page 41 “Installation and Best Layout Practices” on page 42
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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.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV Table 13: 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 Operating Range Cooling (°F WB) Heating (°F DB) Fan Type Turbo Turbo Motor Output (W) x Qty.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS 'LPHQVLRQV Figure 38: LMAN097HVP and LMAN127HVP Dimensions. Supply Air Multi F and Multi F MAX Indoor Unit Engineering Manual Supply Air Vane Supply Air Supply Air Vane Supply Air Supply Air Vane Return Air Inlet Discharge Air Grille 34 | 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 UHJL
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 14: Multi F Art Cool Gallery Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LMAN097HVP 9,000 8.82 8.82 8.81 8.80 8.80 8.79 8.78 8.78 8.77 8.76 8.76 8.75 8.54 8.33 8.12 7.91 7.68 7.50 7.31 7.12 6.94 6.82 6.79 10.98 10.97 10.96 10.95 10.95 10.94 10.93 10.92 10.91 10.90 10.90 10.89 10.63 10.36 10.10 9.84 9.56 9.33 9.10 8.86 8.63 8.49 8.44 5.68 5.72 5.77 5.81 5.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS +HDWLQJ &DSDFLW\ 7DEOH Table 15: Multi F Art Cool Gallery Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMAN097HVP 9,000 LMAN127HVP 12,000 Outdoor Air Temp. 61 TC Indoor Air Temp. °F DB 68 70 TC TC 72 TC 75 TC °F DB °F WB 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.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS $FRXVWLF 'DWD Figure 39: 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 GALLERY INDOOR UNITS $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 41: LMAN097HVP Air Velocity and Temperature Distribution Charts. Cooling Discharge angle: 40° Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] Multi F and Multi F MAX Indoor Unit Engineering Manual Heating 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 5HIULJHUDQW )ORZ 'LDJUDP Figure 43: Art Cool Gallery Indoor Unit Refrigerant Flow Diagram.
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ART COOL GALLERY INDOOR UNITS :LULQJ 'LDJUDP Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 44: Multi F Art Cool Gallery Indoor Units Wiring Diagram. 40 | 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 MULTI F MULTI F MAX
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV Factory Supplied Parts Table 19: Parts Table.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Selecting the Best Location Figure 45: Minimum Clearance Requirements. Multi F and Multi F MAX Indoor Unit Engineering Manual 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.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Preparing the Indoor Unit for Installation Removing the Front Panel Figure 47: Preparing for Installation. 1A 1B 2A 2B 1. First pull the top of the front panel up (1A) and then out (1B). 2. Remove the two (2) screws at the bottom (2A), then lift off the front panel (2B). 3. To completely detach the front panel, disconnect the panel connector found at the top of the indoor unit (3).
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 50: 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 Multi F and Multi F MAX Indoor Unit Engineering Manual 2.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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. Figure 53: Indoor Unit to Field-Installed Piping Connection. Figure 54: Extending the Drain Hose.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV • • • • • • • 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 ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Controller Options Art Cool Gallery wall-mounted indoor units include a handheld controller (AKB73635607), but optional LG-supplied wired controllers are available. Wireless Handheld Controller Figure 60: AKB73635607 Wireless Controller. Table 20: AKB73635607 Wireless Controller Functions.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Wired Controller Connections Figure 61: Wired Controller Connection on the Indoor Unit Terminal Block. Indoor Unit Terminal Block CN-REMO 3 RD BL 1(L1 ) 2(L2) BR GRN / YLW Multi F and Multi F MAX Indoor Unit Engineering Manual GND To Outdoor Unit or Branch Distribution Unit (Multi F MAX Systems Only) Wired Controller Placement Figure 62: Proper Location for the Wired Controller.
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MULTI F MULTI F MAX ART COOL GALLERY INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Assigning the Thermistor for Temperature Detection 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 and Multi F MAX Indoor Unit Engineering Manual MULTI F MULTI F MAX 50 | 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
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STANDARD WALL-MOUNTED INDOOR UNIT DATA “Mechanical Specifications” on page 52 “General Data / Specifications” on page 53 “Dimensions” on page 54 “Cooling Capacity Table” on page 57 “Heating Capacity Table” on page 60 “Acoustic Data” on page 62 “Air Velocity and Temperature Distribution” on page 64 “Refrigerant Flow Diagram” on page 67 “Wiring Diagram” on page 68 “Factory Supplied Parts and Materials” on page 72 “Installation and Best Layout Practices” on page 73
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STANDARD WALL-MOUNTED INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV MULTI F MULTI F MAX Figure 67: Multi F Standard Wall-Mounted Indoor Unit. Standard Wall-Mounted Indoor Units General All LG indoor units are factory assembled, wired, piped, and provided with a control circuit board, fan, and motor. Standard WallMounted units have a sound rating no higher than 42 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 Table 21: Multi F Standard Wall-Mounted Indoor Unit General Data. Model Name Nominal Cooling Capacity (Btu/h) 1 Nominal Heating Capacity (Btu/h) 1 LMN078HVT LSN090HSV4 LSN120HSV4 LMN158HVT LSN180HSV4 LMN248HVT 7,000 9,000 12,000 14,300 18,000 24,000 8,100 10,400 13,800 16,500 20,800 27,000 Operating Range Cooling (°F WB) Heating (°F DB) 57-77 59-81 Fan Type Cross Flow Motor Output (W) x Qty.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS 'LPHQVLRQV Figure 68: LMN078HVT and LMN158HVT Dimensions. 2-3/8 2 [Unit : inch] Multi F and Multi F MAX Indoor Unit Engineering Manual 1-3/4 2-3/16 Left rear piping 1 Ø2-9/16 Unit Outline 5-3/16 6-7/8 17-3/8 35-1/4 Place a level on raised tab 5 4 3 17-3/8 Ø2-9/16 6-5/16 3-6/8 8-1/2 11-3/8 7/8 2 2-5/16 Right rear piping 8-9/32 Return Air Grille 1-3/4 54 | STD. WALL-MOUNTED 2 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS 'LPHQVLRQV Figure 69: LSN090HSV4 and LSN120HSV4 Dimensions. 2-3/8 2 [Unit : inch] 1-3/4 2-3/16 Left rear piping 1 Ø2-9/16 Unit Outline 5-3/16 6-7/8 34-13/16 Place a level on raised tab 4 3 17-3/8 Ø2-9/16 6-5/16 3-6/8 Standard Wall-Mounted 17-3/8 5 8-1/2 11-1/4 7/8 2 2-5/16 Right rear piping 8-1/4 Return Air Grille 1-3/4 2 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ ©/
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS 'LPHQVLRQV Figure 70: LSN180HSV4 and LMN248HVT Dimensions. 2-1/32 [Unit : inch] Unit Outline Ø2-9/16 4-1/8 18-1/8 2-11/16 40-9/16 Place a level on raised tab Measuring Tape Measuring Tape Hanger 22-3/8 Ø2-9/16 2-3/16 8-1/8 Multi F and Multi F MAX Indoor Unit Engineering Manual 1-3/4 2-1/2 Left rear piping 4 Right rear piping 9-13/16 1-3/4 Return Air Grille 56 | STD. WALL-MOUNTED 9-13/16 12-13/16 2-1/32 'XH WR RXU SROLF\ RI
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 22: Multi F Standard Wall-Mounted Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LMN078HVT 7,000 73 / 61 TC SHC Indoor Air Temp. °F DB / °F WB 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.
PAGE 58
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 23: Multi F Standard Wall-Mounted Indoor Units Cooling Capacity Table (continued). Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) 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 | STD. WALL-MOUNTED 8.51 8.57 8.64 8.
PAGE 59
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 24: Multi F Standard Wall-Mounted Indoor Units Cooling Capacity Table (continued). Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LSN180HSV4 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 60
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS +HDWLQJ &DSDFLW\ 7DEOH Table 25: Multi F Standard Wall-Mounted Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMN078HVT 7,000 LSN090HSV4 9,000 LSN120HSV4 12,000 Outdoor Air Temp. °F DB °F WB 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.
PAGE 61
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS +HDWLQJ &DSDFLW\ 7DEOH Table 26: Multi F Standard Wall-Mounted Indoor Units Heating Capacity Table. Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMN158HVT 14,300 LMN248HVT 24,000 °F DB °F WB 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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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS $FRXVWLF 'DWD • 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)±3.
PAGE 63
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS $FRXVWLF 'DWD Figure 73: LMN158HVT, LSN180HSV4, and LMN248HVT Sound Pressure Level Diagrams.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 74: LMN078HVT Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle : 40° Discharge angle : 15° Air velocity (ft/s) Air velocity (ft/s) 8.9 ft Multi F and Multi F MAX Indoor Unit Engineering Manual 8.9 ft 6.6 ft 6.6 ft 8.2 8.2 6.6 3.3 ft 3.3 ft 6.6 4.9 4.9 3.3 16.4 ft 13.1 ft 9.8 ft 6.6 ft 0 ft 0 ft 3.3 ft 3.3 16.4 ft 13.1 ft 9.8 ft 6.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 76: LSN120HSV4 Air Velocity and Temperature Distribution Charts. Cooling Discharge angle:45° Heating Discharge angle:50° Air velocity [ft/s] Air velocity [ft/s] 8.9ft 8.9ft 6.6ft 6.6ft 4.9 4.9 4.1 4.1 3.3 3.3 2.5 1.6 16.4ft 13.1ft 9.8ft 6.6ft 2.5 1.6 3.3ft 0ft 0ft 16.4ft 13.1ft 9.8ft 6.6ft 3.3ft 0ft 0ft Temperature [˚F] Temperature [˚F] 13.1ft 6.6ft 6.6ft 6.6ft 3.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 78: LSN180HSV4 Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle:45° Discharge angle:50° Multi F and Multi F MAX Indoor Unit Engineering Manual Air velocity [ft/s] Air velocity [ft/s] 4.9 8.9ft 8.9ft 6.6ft 6.6ft 4.9 4.0ft 26.2ft 23ft 16.4ft 19.7ft 13.1ft 3.3 2.5 1.6 9.8ft 6.6ft 3.3ft 0ft 26.2ft 23ft 19.7ft 16.4ft 13.1ft 3.3 2.5 9.8ft 6.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS 5HIULJHUDQW )ORZ 'LDJUDP Figure 80: Multi F Standard Wall-Mounted Indoor Unit Refrigerant Flow Diagram.
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STANDARD WALL-MOUNTED INDOOR UNITS :LULQJ 'LDJUDP Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 81: Multi F Standard Wall-Mounted LMN078HVT and LMN158HVT Indoor Units Wiring Diagram. 68 | 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 :LULQJ 'LDJUDP Figure 82: Multi F Standard Wall-Mounted LMN248HVT Indoor Unit Wiring Diagram. 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 :LULQJ 'LDJUDP Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 83: Multi F Standard Wall-Mounted LSN090HSV4 and LSN120HSV4 Indoor Units Wiring Diagram. 70 | 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 :LULQJ 'LDJUDP Figure 84: Multi F Standard Wall-Mounted LSN180HSV4 Indoor Unit Wiring Diagram. 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 )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV MULTI F MULTI F MAX Factory Supplied Parts Multi F and Multi F MAX Indoor Unit Engineering Manual Table 30: Parts Table.
PAGE 73
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 85: Minimum Clearance Requirements. Selecting the Best Location 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 74
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Preparing for Installation Prepare the refrigerant piping and drain hose (indoor unit piping) for installation through the wall: press on the top of the tubing clamp and slowly guide the piping / hose down (depending on installation requirements, then to the left or right). Relock the tubing clamp after the piping / hose are released. Figure 89: Preparing for Installation.
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MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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. Figure 96: Indoor Unit to Field-Installed Piping Connection. 2. Tighten the flare nut with a torque wrench. 3. Attach the drain tube piping to the indoor unit drain hose as shown.
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STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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 77
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Controller Options Standard wall-mounted indoor units include a wireless controller (AKB73635606), but optional LG-supplied wired controllers are available. Wireless Controller Figure 104: AKB73635606 Wireless Controller. Table 31: AKB73635606 Wireless Controller Functions. Control Panel Button Display Screen Description Plasma Button: Plasma filter helps remove air impurities.
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STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV MULTI F MULTI F MAX Table 32: AKB73835312 Wireless Controller Functions. Control panel Multi F and Multi F MAX Indoor Unit Engineering Manual Wireless Controller Display screen Description Fan button : Air come out from the indoor unit below to the room without air temperature change. Figure 105: AKB73835312 Wireless Controller. Sleep mode auto button*: Sets sleep mode auto operation.
PAGE 79
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Wired Controller Connections Figure 106: Wired Controller Connection on Indoor Unit Terminal Block— LMN078HVT, LSN090HSV4, LSN120HSV4, and LMN158HVT Models. Figure 107: Wired Controller Connection on Indoor Unit Terminal Block— LSN180HSV4 and LMN248HVT Models.
PAGE 80
MULTI F MULTI F MAX STANDARD WALL-MOUNTED INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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 directions: top, back, or on the right side. If top or right side installation is desired, remove cable guide grooves on the controller, and then position wiring / cable on applicable side. Figure 110: Removing the Cable Guide Grooves.
PAGE 81
CEILING-CONCEALED DUCT (LOW STATIC) INDOOR UNIT DATA “Mechanical Specifications” on page 82 “General Data / Specifications” on page 83 “Dimensions” on page 84 “Cooling Capacity Table” on page 85 “Heating Capacity Table” on page 87 “External Static Pressure” on page 88 “Acoustic Data” on page 89 “Refrigerant Flow Diagram” on page 90 “Wiring Diagram” on page 92 “Factory Supplied Parts and Materials” on page 93 “Installation and Best Layout Practices” on page 94
PAGE 82
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV Ceiling-Concealed Duct (Low Static) Indoor Unit Figure 114: Ceiling-Concealed Duct (Low 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 83
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV Table 33: 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 LMDN186HV 9,000 12,000 18,000 10,400 13,800 20,800 Operating Range Cooling (°F WB) Heating (°F DB) 57-77 59-81 Fan Type Sirocco 19 x 1 5 x 1, 19 x 1 Ceiling-Concealed Duct (Low Static) Motor Output (W) x Qty.
PAGE 84
DUCT (LOW STATIC) INDOOR UNITS 'LPHQVLRQV Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 115: LDN097HV4, LDN127HV4, and LMDN186HV Dimensions. 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 MULTI F MULTI F MAX
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MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 34: Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LDN127HV4 12,000 8.82 8.82 8.81 8.80 8.80 8.79 8.78 8.78 8.77 8.76 8.76 8.75 8.54 8.33 8.12 7.91 7.68 7.50 7.31 7.12 6.94 6.82 6.79 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.
PAGE 86
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 35: Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Cooling Capacity Table (continued). Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) 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 | DUCT (LOW STATIC) 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.
PAGE 87
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS +HDWLQJ &DSDFLW\ 7DEOH Table 36: Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Heating Capacity Table. Model No. / Nominal Capacity of Indoor Unit (Btu/h) LDN097HV4 9,000 LMDN186HV 18,000 °F DB °F WB 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.
PAGE 88
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ([WHUQDO 6WDWLF 3UHVVXUH Table 37: 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) Multi F and Multi F MAX Indoor Unit Engineering Manual LDN097HV4 9,000 LDN127HV4 12,000 LMDN186HV 18,000 0.0 0.04 0.08 Airflow Rate / CFM 0.12 0.16 0.
PAGE 89
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS $FRXVWLF 'DWD Figure 116: Sound Pressure Level Measurement Location. • 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)±3. • Tested in anechoic chamber per ISO Standard 3745. 4.9 ft.
PAGE 90
DUCT (LOW STATIC) INDOOR UNITS 5HIULJHUDQW )ORZ 'LDJUDPV MULTI F MULTI F MAX Figure 118: LDN097HV4 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 Indoor Unit Indoor Air Temperature Thermistor Table 39: Multi F Ceiling-Concealed Duct (Low Static) LDN097HV4 Indoor Unit Refrigerant Pipe Connection Port Diameters. Model No.
PAGE 91
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS 5HIULJHUDQW )ORZ 'LDJUDPV Figure 119: LDN127HV4 and LMDN186HV Refrigerant Flow Diagram. : Cooling : Heating Evaporator Outlet Temperature Thermistor Sirocco Fan M M Ceiling-Concealed Duct (Low Static) Evaporator Inlet Temperature Thermistor Indoor Unit Indoor Air Temperature Thermistor Table 41: Multi F Ceiling-Concealed Duct (Low Static) LDN127HV4 and LMDN186HV Indoor Unit Refrigerant Pipe Connection Port Diameters. Model No.
PAGE 92
DUCT (LOW STATIC) INDOOR UNITS :LULQJ 'LDJUDP MULTI F MULTI F MAX Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 120: Multi F Ceiling-Concealed Duct (Low Static) LDN097HV4, LDN127HV4, and LMDN186HV Indoor Units Wiring Diagram. 92 | 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
PAGE 93
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV Factory Supplied Parts Table 43: Parts Table.
PAGE 94
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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.
PAGE 95
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Duct (Low Static) Indoor Units can be installed in two ways: Table 46: Indoor Unit Bolt Locations. Figure 123: Air inlet from the back of the indoor Figure 124: Air inlet from the bottom of the indoor unit. unit. Air Filter E G Back Panel Air Filter H Drainage hole Table 45: Indoor Unit Bolt Location Dimensions.
PAGE 96
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 128: 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 should not be straight up and down. • Do not damage the drain port on the indoor unit when connecting the field-supplied drain piping.
PAGE 97
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Insulating the Refrigerant and Drain Piping Figure 133: 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 may generate condensate or will cause burns if touched.
PAGE 98
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV • • • • • • • 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 99
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Wired Controller Controller Options Figure 136: AKB729558161 Wired Controller. Ceiling-concealed duct (low static) indoor units include an LG-supplied wired controller (AKB72955816)1, but other optional LG-supplied wired controllers are available. The wireless handheld controller (Model No. PQWRHQ0FDB) is also an optional accessory with use of the wired controller.
PAGE 100
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 139: 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 directions: top, back, or on the right side. If top or right side installation is desired, remove cable guide grooves on the controller, and then position wiring / cable on applicable side.
PAGE 101
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV External Static Pressure Control To provide a required air flow rate that accounts for the external static pressure change, follow the steps below. Figure 144: 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 102
MULTI F MULTI F MAX DUCT (LOW STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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. Figure 145: Controller External Static Pressure Setting Display.
PAGE 103
CEILING-CONCEALED DUCT (HIGH STATIC) INDOOR UNIT DATA “Mechanical Specifications” on page 104 “General Data / Specifications” on page 105 “Dimensions” on page 106 “Cooling Capacity Table” on page 107 “Heating Capacity Table” on page 108 “External Static Pressure” on page 109 “Acoustic Data” on page 109 “Refrigerant Flow Diagrams” on page 110 “Wiring Diagram” on page 111 “Factory Supplied Parts and Materials” on page 112 “Installation and Best Layout Practices” on page 113
PAGE 104
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 105
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 /0+1 +9 /0+1 +9 1RPLQDO &RROLQJ &DSDFLW\ %WX K 1RPLQDO +HDWLQJ &DSDFLW\ %WX K 57-77 57-77 Type Sirocco Sirocco 0RWRU 2XWSXW : [ 4W\ 0RWRU 'ULYH )DFWRU\ 6HW $LUIORZ 5DWH &)0 + 0 / Factory Set External Static Pressure (in. wg) Maximum External Static Pressure (in.
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DUCT (HIGH STATIC) INDOOR UNITS 'LPHQVLRQV Multi F and Multi F MAX Indoor Unit Engineering Manual )LJXUH /0+1 +9 DQG /0+1 +9 'LPHQVLRQV 106 | 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
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH 7DEOH Multi F Ceiling-Concealed Duct (High Static) Indoor Units Cooling Capacity Table. 0RGHO 1R Air Nominal Capacity Outdoor Temp.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS +HDWLQJ &DSDFLW\ 7DEOH 7DEOH Multi F Ceiling-Concealed Duct (High Static) Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual 0RGHO 1R Nominal Capacity of Indoor Unit %WX K /0+1 +9 /0+1 +9 Outdoor Air Temp.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ([WHUQDO 6WDWLF 3UHVVXUH $FRXVWLF 'DWD 7DEOH Multi F Ceiling-Concealed Duct (High Static) External Static Pressure Setting Values Table. Static Pressure (in. wg) 0RGHO 1R 1RPLQDO &DSDFLW\ $LUIORZ 5DWH &)0 RI ,QGRRU 8QLW %WX K High Mid Low High Mid Low /0+1 +9 /0+1 +9 0.55 0.70 0.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS 5HIULJHUDQW )ORZ 'LDJUDPV )LJXUH /0+1 +9 DQG /0+1 +9 5HIULJHUDQW )ORZ 'LDJUDP Gas pipe connection port (flare connection) Heat exchanger Multi F and Multi F MAX Indoor Unit Engineering Manual Heating Cooling Thermistor for evaporator outlet temperature Sirocco Fan M Thermistor for suction air temperature Thermistor for evaporator inlet temperature Liquid pipe connection port (flare connection) 7DEOH Multi F Ceiling-Concealed D
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS :LULQJ 'LDJUDPV )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
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV ,QVWDOODWLRQ Factory Supplied Parts Multi F and Multi F MAX Indoor Unit Engineering Manual 7DEOH Parts Table. Part 4XDQWLW\ Drain Hose Metal Clamp :DVKHUV IRU Hanging %UDFNHWV Image Part 4XDQWLW\ 2QH Zip Ties )RXU 7ZR Insulation for Fittings 2QH 6HW Simple Controller with Mode Selection $.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV If the unit is installed near a body of water, certain components are at risk of being corroded. Appropriate anti-corrosion methods should be taken for the unit and all components.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Preparing the Installation Area and Hanging the Indoor Unit Frame 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). Add the set-anchor and the plate washer to the bolts (bolts VKRXOG EH DW OHDVW LQFKHV LQ GLDPHWHU DQG WKHQ LQVHUW WKH bolts into the installation area.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV )LJXUH Checking the drain pump. Checking the Drain Pump The unit uses a drain pump to remove condensate. The pump must be tested before the system operates. • &RQQHFW ILHOG VXSSOLHG IOH[LEOH GUDLQ KRVH WR WKH ILHOG LQVWDOOHG GUDLQ SLSLQJ OHDYH LW DV is until the test is complete. • Pour water into the flexible drain hose and check for leaks.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Follow manufacturer’s circuit diagrams in the technical manuals. Confirm power source specifications. Confirm that the electrical capacity is sufficient. 6WDUWLQJ FXUUHQW PXVW EH PDLQWDLQHG SHUFHQW RI WKH UDWHG FXUUHQW PDUNHG RQ WKH RXWGRRU XQLW QDPH SODWH Confirm cable thickness specifications. It is recommended that a circuit breaker is installed, especially if conditions could become wet or moist.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Using a Conduit )LJXUH Exterior View of Conduit Installation. 5HPRYH WKH UXEEHU VWRSSHU RQ WKH LQGRRU XQLW 3DVV WKH SRZHU ZLULQJ FRPPXQLFDWLRQV FDEOH WKURXJK WKH FRQGXLW WKH FRQGXLW PRXQWLQJ SODWH DQG WR WKURXJK WKH control panel of the indoor unit. &RQQHFW WKH SRZHU ZLULQJ FRPPXQLFDWLRQV FDEOH WR WKH LQGRRU XQLW WHUPLQDO EORFN Screw the conduit mounting plate to the indoor unit.
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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 FROG DLU &RQWUROOHU PXVW EH LQVWDOOHG IRXU WR ILYH IHHW DERYH WKH IORRU Z
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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. To access system installer setting mode, press and hold the temperature increase and mode selection EXWWRQV VLPXOWDQHRXVO\ IRU DSSUR[LPDWHO\ WKUHH VHFRQGV &KRRVH VHWWLQJ FRGH YDOXH ³ ´ E\ SUHVVi
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MULTI F MULTI F MAX DUCT (HIGH STATIC) INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Assigning Air Flow To assign an air flow for each fan speed, follow the steps below. To access system installer setting mode, press and hold the temperature increase and mode selection EXWWRQV VLPXOWDQHRXVO\ IRU DSSUR[LPDWHO\ WKUHH VHFRQGV &KRRVH VHWWLQJ FRGH YDOXH ³ ´ E\ SUHVVing the mode selection button. )LJXUH Controller External Static Pressure Setting Display.
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FOUR-WAY CEILING-CASSETTE INDOOR UNIT DATA “Mechanical Specifications” on page 122 “General Data / Specifications” on page 123 “Dimensions” on page 124 “Cooling Capacity Table” on page 126 “Heating Capacity Table” on page 128 “Acoustic Data” on page 130 “Air Velocity and Temperature Distribution” on page 132 “Refrigerant Flow Diagram” on page 134 “Wiring Diagram” on page 135 “Factory Supplied Parts and Materials” on page 136 “Installation and Best Layout Practices” on page 137
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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.
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MULTI F FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MAX *HQHUDO 'DWD 6SHFL¿FDWLRQV Table 64: Multi F Four-Way Ceiling-Cassette Indoor Unit General Data.
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FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MULTI F MAX 'LPHQVLRQV Multi F and Multi F MAX Indoor Unit Engineering Manual Figure 177: LMCN077HV, LCN097HV4, and LCN127HV4 Dimensions. 124 | 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
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MULTI F FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MAX 'LPHQVLRQV Figure 178: LMCN185HV 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-CASSETTE | 125
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FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MULTI F MAX &RROLQJ &DSDFLW\ 7DEOH Table 65: Multi F Four-Way Ceiling-Cassette Indoor Units Cooling Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Air Nominal Capacity Outdoor Temp.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX &RROLQJ &DSDFLW\ 7DEOH Table 66: Multi F Four-Way Ceiling-Cassette Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit (°F DB) (Btu/h) LCN127HV4 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.
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX +HDWLQJ &DSDFLW\ 7DEOH Table 67: Multi F Four-Way Ceiling-Cassette Indoor Units Heating Capacity Table. Multi F and Multi F MAX Indoor Unit Engineering Manual Model No. / Nominal Capacity of Indoor Unit (Btu/h) LMCN077HV 7,000 LCN097HV4 9,000 Outdoor Air Temp. °F DB °F WB 61 TC 0 -0.4 4.17 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 5.13 5.
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MULTI F FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MAX +HDWLQJ &DSDFLW\ 7DEOH Table 68: Multi F Four-Way Ceiling-Cassette Indoor Units Heating Capacity Table. Model No. / Nominal Capacity of Indoor Unit (Btu/h) LCN127HV4 12,000 °F DB °F WB 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.
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX $FRXVWLF 'DWD • 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)±3. • Tested in anechoic chamber per ISO Standard 3745.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX $FRXVWLF 'DWD Figure 181: LCN127HV4 and LMCN185HV Sound Pressure Level Diagrams.
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 182: LMCN077HV 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.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX $LU 9HORFLW\ DQG 7HPSHUDWXUH 'LVWULEXWLRQ Figure 184: LCN127HV4 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.
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX 5HIULJHUDQW )ORZ 'LDJUDP Figure 186: Multi F Four-Way Ceiling-Cassette Indoor Unit Refrigerant Flow Diagram.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX :LULQJ 'LDJUDP Figure 187: Multi F Four-Way Ceiling-Cassette Indoor Unit Wiring Diagram. 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-CASSETTE | 135
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV Factory Supplied Parts Multi F and Multi F MAX Indoor Unit Engineering Manual Table 72: Parts Table.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Selecting the Best Location Figure 188: Indoor Unit Clearance Requirements.
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Installing Multiple Indoor Units in One Area Figure 190: Installing Multiple Indoor Units. Ensure there is enough space between indoor units, lighting fixtures, and ventilation fans / systems.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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.
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Insulating the Refrigerant and Drain Piping Figure 197: Insulating the Piping.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Connecting the Power Wiring and Communications Cable Figure 198: Power Wiring and Communications 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.
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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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 Table 75: AKB737576041 Wireless Handheld Controller Functions.2 Button Description Label 1 Vane Angle Button: Sets the angle to each vane.
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MULTI F FOUR-WAY CEILING CASSETTE INDOOR UNITS MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Wired Controller Placement Figure 203: Proper Location for the Wired Controller. Wired controllers include a sensor to detect room temperature. To maintain 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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FOUR-WAY CEILING-CASSETTE INDOOR UNITS MULTI F MULTI F MAX ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 207: PTVK430 Ventilation Kit. PTVK430 Ventilation Kit Multi F and Multi F MAX Indoor Unit Engineering Manual PTVK430 Ventilation Kit includes a flange for field-supplied ventilation pipe connection. Easily connects at the four-way ceiling-cassette three (3) inch fresh air knockout hole. Finalizing Indoor Unit Installation— Installing the Decoration Panel 'HFRUDWLRQ SDQHO PXVW EH LQVWDOOHG SURSHUO\ F
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VERTICAL-HORIZONTAL AIR HANDLING INDOOR UNIT DATA “Mechanical Specifications” on page 146 “General Data / Specifications” on page 147 “Dimensions” on page 148 “Cooling Capacity Table” on page 149 “Heating Capacity Table” on page 150 “External Static Pressure” on page 151 “Acoustic Data” on page 152 “Refrigerant Flow Diagram” on page 153 “Wiring Diagram” on page 154 “Factory Supplied Parts and Materials” on page 156 “Installation and Best Layout Practices” on page 157
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VERTICAL-HORIZONTAL INDOOR UNITS 0HFKDQLFDO 6SHFL¿FDWLRQV DQG )HDWXUHV 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.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS *HQHUDO 'DWD 6SHFL¿FDWLRQV Table 76: Multi F Vertical-Horizontal Air Handling Indoor Unit General Data. Model Name Nominal Cooling Capacity (Btu/h) /091 +9 LMVN360HV 36,000 27,000 6LUFRFFR 6LUFRFFR [ 182 x 1 Brushless Digitally Controlled / Direct Brushless Digitally Controlled / Direct 1.00 1.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS 'LPHQVLRQV Figure 211: /091 +9 DQG /091 +9 'LPHQVLRQV 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
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS &RROLQJ &DSDFLW\ 7DEOH Table 77: Multi F Vertical-Horizontal Air Handling Indoor Units Cooling Capacity Table. Model No. / Air Nominal Capacity Outdoor Temp. of Indoor Unit ) '% (Btu/h) LMVN360HV 36,000 23.38 23.37 23.33 22.77 22.21 18.10 33.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS +HDWLQJ &DSDFLW\ 7DEOH Table 78: 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) /091 +9 LMVN360HV 36,000 Outdoor Air Temp. 61 TC ,QGRRU $LU 7HPS ) '% 68 70 TC TC 72 TC TC ) '% ) :% 0 13.70 13.30 12.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ([WHUQDO 6WDWLF 3UHVVXUH 7DEOH 0XOWL ) 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ 8QLW ([WHUQDO 6WDWLF 3UHVVXUH 6HWWLQJ 9DOXHV 7DEOH 6WDWLF 3UHVVXUH LQ ZJ 0.1 0.2 0.3 Model No. / Nominal Capacity Airflow Rate / CFM of Indoor Unit (Btu/h) /091 +9 LMVN360HV 36,000 High Mid Low High Mid Low 0.6 0.7 0.8 1.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS $FRXVWLF 'DWD 0HDVXUHPHQW WDNHQ ƍ DZD\ IURP WKH XQLW Measurements taken with no attenuation and units operating at full load normal operating condition. 6RXQG OHYHO ZLOO YDU\ GHSHQGLQJ RQ D UDQJH RI IDFWRUV VXFK DV FRQVWUXFWLRQ (acoustic absorption coefficient) of particular area in which the equipment is installed.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS 5HIULJHUDQW )ORZ 'LDJUDP )LJXUH Multi F Vertical-Horizontal Air Handling Indoor Unit Refrigerant Flow Diagram.
PAGE 154
MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS :LULQJ 'LDJUDP 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 Table 86: :LULQJ 'LDJUDP &RQQHFWLRQV 154 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-FLOA
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS :LULQJ 'LDJUDP Table 87: ',3 6ZLWFK 6HWWLQJV 'LS 6ZLWFK 6HWWLQJV 6: GROUP OFF ON Description Master 6ODYH Group control setting using wired remote controller. Dry contact mode setting. 1. Variable: Auto/manual mode can be chosen using the wide wired remote controller or wireless remote controller (factory setting is the manual mode). 2. Auto: For dry contact, it is always auto mode.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS )DFWRU\ 6XSSOLHG 3DUWV DQG 0DWHULDOV Required Tools Factory Supplied Materials • Owner’s Manual • Installation Manual • 6LPSOH &RQWUROOHU ZLWK 0RGH 6HOHFWLRQ $.% 1 6LPSOH 0RGH &RQWUROOHUV IRU WKH YHUWLFDO KRUL]RQWDO DLU KDQGOLQJ LQGRRU XQLWV DUH DOVR UHIHUHQFHG E\ 0RGHO 1R 345&9&/ 4: Multi F and Multi F MAX Indoor Unit Engineering Manual • • • • • Level 6FUHZGULYHU Electric drill Hole core drill Flaring tool set • • • • To
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 217: General and Duct Connection Dimensions. Figure 216: Clearance Requirements.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ 8QLWV FDQ EH LQVWDOOHG LQ D FKRLFH RI YHUWLFDO XSÀRZ RU KRUL]RQWDO OHIW VLGH FRQ¿JXUDWLRQV )LJXUH Vertical Installation / Attaching the Bottom Duct. Vertical (Upflow) Installation • Unit must be positioned properly for plenum / duct installation.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Figure 221: 6HFXULQJ WKH 'XFWV WR WKH 8QLW Installing the Ducts • 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.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV Field-Installed U-Trap Specifications Drain Piping Specifications • Drain piping must have downward gradient of at OHDVW WR WR SUHYHQW UHYHUVH IORZ VORSH should 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.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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. 6WDUWLQJ FXUUHQW PXVW EH PDLQWDLQHG SHUFHQW RI WKH UDWHG FXUUHQW PDUNHG RQ WKH RXWGRRU XQLW QDPH SODWH Confirm cable thickness specifications.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV AKB729558161 Wired Controller. Controller Options 9HUWLFDO +RUL]RQWDO $LU +DQGOLQJ LQGRRU XQLWV LQFOXGH DQ /* VXSSOLHG ZLUHG FRQWUROOHU $.% 1, but other optional LG-supplied wired controllers are available. The wireless handheld controller 0RGHO 1R 34:5+4 )'% LV DOVR DQ RSWLRQDO DFFHVVRU\ ZLWK XVH RI WKH ZLUHG FRQWUROOHU • • • • • Operation Display Panel: Displays operation conditions.
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MULTI F MULTI F MAX VERTICAL-HORIZONTAL INDOOR UNITS ,QVWDOODWLRQ DQG %HVW /D\RXW 3UDFWLFHV 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 H[SRVHG WR FROG DLU &RQWUROOHU PXVW EH LQVWDOOHG IRXU WR ILYH IHHW DERYH WKH floor where its LED display can be read easily, in an area w
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Multi F and Multi F MAX Indoor Unit Engineering Manual MULTI F MULTI F MAX 164 | 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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APPLICATION GUIDELINES “Equipment Selection Procedure” on page 166 “Building Ventilation Design Guide” on page 172 “Placement Considerations” on page 177
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Multi F and Multi F MAX Indoor Unit Engineering Manual EQUIPMENT SELECTION PROCEDURE MULTI F MULTI F MAX 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.
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE Multiplier Examples Example 1 Branch Distribution Unit (PMBD3641) Outdoor Unit: LMU540HV First Indoor Unit: + Second Indoor Unit: + Third Indoor Unit: LMCN125HV LSN090HSV4 LMVN360HV Total Capacity Index = 12 + 9 Branch Distribution Unit (PMBD3620) Example 2 + 36 x 1.3 Outdoor Unit: LMU540HV Total Capacity Index = = 67.8 < 73 Acceptable Combination First Indoor Unit: + Second Indoor Unit: LMVN240HV LMVN240HV 24 x 1.2 + 24 x 1.2 = 57.
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE Table 91: Rated Outdoor Unit Capacity. Outdoor Units LMU18CHV LMU24CHV LMU30CHV LMU36CHV LMU480HV LMU540HV LMU600HV Multi F and Multi F MAX Indoor Unit Engineering Manual Rated Capacity (Btu/h)* 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.
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MULTI F MULTI F MAX EQUIPMENT SELECTION PROCEDURE Table 93: Multi F MAX 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 may need to be adjusted for frost accumulation on air-cooled systems.
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BUILDING VENTILATION DESIGN GUIDE MULTI F MULTI F MAX Multi F and Multi F MAX Indoor Unit Engineering Manual ASHRAE Standards 62.1 and 62.2 (depending on if the building is residential or commercial), and local codes specify the minimum volume of airflow that must be provided to an occupied space. Outdoor air is required to minimize adverse health effects, and it provides acceptable indoor air quality for building occupants.
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MULTI F MULTI F MAX BUILDING VENTILATION DESIGN GUIDE Method 2: Unconditioned Outdoor Air (Non-Ducted, Fan Assisted Ventilation) When approved by local codes, the fan assisted ventilation method uses exhaust fans to remove air from the building, and outdoor air is drawn into occupied spaces through a wall louver or gravity roof intake hood.
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BUILDING VENTILATION DESIGN GUIDE MULTI F MULTI F MAX Method 3: Unconditioned Outdoor Air Ducted to Indoor Units Multi F and Multi F MAX Indoor Unit Engineering Manual Untreated outdoor air is channeled through a duct system that is piped to the return air duct on Multi F ducted indoor units or to the frame of Multi F four-way cassettes. 2XWVLGH DLU PD\ ÀRZ EDFNZDUG WKURXJK WKH UHWXUQ DLU ¿OWHU JULOOH ZKHQ WKH LQGRRU XQLW IDQ VSHHG VORZV RU VWRSV LQ UHVSRQVH WR FKDQJHV LQ WKH VSDFH ORDG 7KLV PD\ UHVX
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MULTI F MULTI F MAX BUILDING VENTILATION DESIGN GUIDE Method 4: Coupled Dedicated Outdoor Air (CDOA) A separate, dedicated outdoor air system delivers air directly to a Multi F indoor unit or to the return air duct system. After mixing with the return air stream, ventilation air passes through the indoor unit and into the conditioned space. The pretreatment system is capable of filtering, conditioning, and dehumidifying outdoor air to room neutral conditions. 2XWVLGH DLU PD\ ÀRZ EDFNZDUG WKURXJK WKH UHWX
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BUILDING VENTILATION DESIGN GUIDE MULTI F MULTI F MAX Method 5: Decoupled Dedicated Outdoor Air System (DDOAS) LG recommends using the DDOAS method in all installations. Advantages Disadvantages • May be used with the full lineup of Multi F indoor units. • The outdoor air unit may supply “neutral” air to the occupant space even when the Multi F indoor unit fan changes speed or cycles on and off. DDOAS controls do not have to be interlocked with the Multi V F system.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Selecting the Best Location for the Indoor Units Select a location for installing the indoor units that will meet the following conditions: • Within allowable parameters for proper connection to the outdoor unit (or Branch Distribution unit, if a Multi F MAX system). • So that condensation drainage can be conveniently routed away. • Include enough space around the indoor unit so that it is accessible for maintenance and service purposes.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Multi F and Multi F MAX Indoor Unit Engineering Manual Selecting the Best Location for the Outdoor Unit, continued. • Where it will not be subjected to direct thermal radiation from other heat sources, nor an area that would not expose the outdoor unit to heat or steam like discharge from boiler stacks, chimneys, steam relief ports, other air conditioning units, kitchen vents, plumbing vents, and other sources of extreme temperatures.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Outdoor Unit Platform Requirements Figure 244: Outdoor Unit Foundation Requirements.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Multi F and Multi F MAX Indoor Unit Engineering Manual Tie-Downs and Lightening Protection Figure 247: 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). Obstacle on the suction side only. " 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 imu 1m1 Application Guidelines Min 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 Table 98: Ratio among H, A, and L.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Installing Outdoor Units Indoors LG Multi F / Multi F MAX outdoor units are engineered to be mounted outdoors and include technology designed to minimize the negative effects of winter weather’s freezing rain, sleet, and snow. Some building projects, however, necessitate placing the HVAC outdoor units indoors: • Lack of ground space. • Lack of an appropriate outdoor location that meets system design requirements.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Provide a means to drain the condensate generated during heating mode and defrost cycle in addition to rainwater that infiltrates the inlet louver enclosed area. • Install a field-provided drain pan under the outdoor units and provide a path to a nearby floor drain.
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MULTI F MULTI F MAX PLACEMENT CONSIDERATIONS Figure 250: Open Rate by Louver Radian Formula. Open Rate by Louver Radian W h ho H Application Guidelines ho = h * COS Total Area (A) = H * W Number of Open Spaces (N) = (Number of Louvers - 1) Effective Area (Af) = ho * W * N Louver Open Rate (n) = Af / A Af = A * n Side View Effective Cross Section Area Front View Confirming Air Flow Rate / Total Opening Rate Figure 251: Example of Installing Outdoor Unit Indoors.
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Multi F and Multi F MAX Indoor Unit Engineering Manual MULTI F MULTI F MAX 186 | APPLICATION GUIDELINES '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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REFRIGERANT PIPING DESIGN & LAYOUT BEST PRACTICES “Design Guideline Summary” on page 188 “Creating a Balanced System” on page 190 “Manual Layout Procedure” on page 190 “LG Engineered Multi F MAX Y-Branch Kits” on page 191 “Refrigerant Charge” on page 192 “Selecting Field-Supplied Copper Tubing” on page 194 “Refrigerant Piping System Layout” on page 196 “Piping Insulation” on page 204 “Condensate Drain Piping” on page 205 “Y-Branch Kit” on page 207
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Design Guideline Summary The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. 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.
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Design Guideline Summary The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. Multi F MAX System with One Branch Distribution Unit Example: LMU540HV outdoor unit with four (4) indoor units, and one (1) branch distribution unit connected. IDU BDU A B h2 ≤ 49.2 feet IDU B IDU h1 ≤ 98.4 feet B h3 ≤ 32.8 feet Refrigerant Piping Design and Best Practices ODU: Outdoor Unit.
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REFRIGERANT PIPING DESIGN Creating a Balanced System / Manual Layout Procedure MULTI F MULTI F MAX Creating a Balanced / Quality Piping System Multi F and Multi F MAX Indoor Unit Engineering Manual 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.
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN LG Engineered Multi F MAX Y-Branch Kit Multi F MAX Y-Branch Kit PMBL5620 Figure 252: Y-Branch Connections. The LG supplied Y-Branch Kit PMBL5620 MUST be used when two branch distribution units are connected on one Multi F MAX system. Field-supplied fittings are not permitted. Each Y-Branch kit comes with two (2) Y-branches (one for the liquid line and one for the vapor line) and insulation covers.
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Refrigerant Charge Multi F and Multi F MAX Indoor Unit Engineering Manual LG Multi F and Multi F MAX outdoor units ship from the factory with a charge of R410A refrigerant. A trim charge may need to be added to take into account additional piping length. To determine the additional refrigerant that is needed, apply the formulas below, and record the results.
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Refrigerant Charge Multi F MAX Systems $GGLWLRQDO FKDUJH OEV 7RWDO 0DLQ 3LSLQJ /HQJWK >$@ &KDUJHOHVV 3LSH /HQJWK RI 0DLQ 3LSH >/@ [ D ,QVWDOOHG /HQJWK RI %UDQFK >% @ ± &KDUJHOHVV 3LSH /HQJWK >%@ [ E ,QVWDOOHG /HQJWK RI %UDQFK >% @ ± &KDUJHOHVV 3LSH /HQJWK >%@ [ E ,QVWDOOHG /HQJWK RI %UDQFK >% @ ± &KDUJHOHVV 3LSH /HQJWK >%@ [ E - CF (Correction Factor) x 3.
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MULTI F MULTI F MAX REFRIGERANT PIPING DESIGN Selecting Field-Supplied Copper Tubing Multi F and Multi F MAX Indoor Unit Engineering Manual Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi V products will be marked “R410 RATED” along the length of the tube.
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Selecting Field-Supplied Copper Tubing Table 109: Linear Thermal Expansion of Copper Tubing in Inches. 1 35° 40° 45° 50° 55° 60° 65° 70° Fluid Temperature °F 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 130° 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.32 0.36 0.40 0.48 0.56 0.64 0.72 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.32 0.36 0.40 0.48 0.56 0.64 0.72 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 0.06 0.12 0.
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INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout MULTI F MULTI F MAX Multi F and Multi F MAX Indoor Unit Engineering Manual Field-Provided Isolation Ball Valves LG recommends installing field-supplied ball valves with Schrader ports at each indoor unit. Full-port isolation ball valves with Schrader ports (positioned between valve and indoor unit) rated for use with R410A refrigerant should be used on both the liquid and vapor lines.
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Figure 261: Installing an Insert Into a Concrete Beam. Inserts and Pipe Supports Inserts An insert can be installed into a floor or beam before the concrete sets so that fittings such as ducts, pipes, or suspension bolts can be added at a later time. Decide where the inserts should be placed before support installation.
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INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout MULTI F MULTI F MAX Examples of Supports Figure 266: U-Bolt Support with Insulation. Figure 267: O-Ring Support with Insulation. Figure 268: Saddle-Type Support. Bolt Support at Intervals Between 5 and 6-3/4 Feet Insulation Multi F and Multi F MAX Indoor Unit Engineering Manual Bolt 1.5t Plate PVC PVC 'R QRW FRPSUHVV WKH LQVXODWLRQ ZLWK WKH VDGGOH W\SH VXSSRUW ,I WKH LQVXODWLRQ LV FRPSUHVVHG LW PD\ WHDU RSHQ DQG DOORZ FRQGHQVD
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Pipe Sleeves at Penetrations LG requires that all pipe penetrations through walls, floors, and pipes buried underground be routed through a properly insulated sleeve that is sufficiently sized to provide free movement of the pipe and does not compress the insulation. Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration.
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Multi F Outdoor Unit to Indoor Unit Piping Connections Figure 276: Multi F Refrigerant Pipe Connections (LMU36CHV shown as example). Multi F and Multi F MAX Indoor Unit Engineering Manual Avoid Pipe Damage Gas Piping Connections A-UNIT • :KHQ URXWLQJ ILHOG SURYLGHG SLSLQJ DYRLG GDPDJLQJ WKH RXWGRRU XQLW IURP H[FHVVLYH YLEUDWLRQ • 3URSHUO\ LQVXODWH WKH OLTXLG DQG JDV OLQHV VHSDUDWHO\ XS WR WKH SRLQW
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Multi F MAX Outdoor Unit System Piping Connections Avoid Pipe Damage • :KHQ URXWLQJ ILHOG SURYLGHG SLSLQJ DYRLG GDPDJLQJ WKH RXWGRRU XQLW IURP H[FHVVLYH YLEUDWLRQ • 3URSHUO\ LQVXODWH WKH OLTXLG DQG JDV OLQHV VHSDUDWHO\ XS WR WKH SRLQW RI FRQQHFWLRQ DW WKH XQLW IUDPH • 6HH WDEOH EHORZ IRU 0XOWL ) 0$; RXWGRRU XQLW FRQQHFWLRQ W\SHV Outdoor Unit Piping Connections LMU540HV Liquid Line Connection (in.
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INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout MULTI F MULTI F MAX Multi F System Piping Connections 1. Align the center of the piping sections and tighten the flare nut by hand. 2. Tighten the flare nut with a torque wrench, using the arrows on the wrench as a guide, until a click is heard. 3. Wrap insulation around the connection. Figure 281: Possible Outdoor Unit or Branch Distribution Unit to Indoor Unit Connections. Multi F and Multi F MAX Indoor Unit Engineering Manual 1.
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Brazing Practices .HHS WKH SLSLQJ V\VWHP IUHH RI FRQWDPLQDQWV DQG GHEULV VXFK DV FRSSHU EXUUV VODJ RU FDUERQ GXVW GXULQJ LQVWDOODWLRQ 1. All joints are brazed in the field. Multi F refrigeration system components contain very small capillary tubes, small orifices, electronic expansion valves, oil separators, and heat exchangers that can easily become blocked.
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INSTALLATION & LAYOUT BEST PRACTICES Piping Insulation MULTI F MULTI F MAX Multi F and Multi F MAX Indoor Unit Engineering Manual Refrigerant Piping System Insulation All refrigerant piping including Y-branch connections, field-provided isolation ball valves, service valves, and elbows shall be completely insulated using closed cell pipe insulation. To prevent heat loss/heat gain through the refrigerant piping, all refrigerant piping including liquid lines and vapor lines shall be insulated VHSDUDWHO\ ,
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MULTI F MULTI F MAX INSTALLATION & LAYOUT BEST PRACTICES Condensate Drain Piping Condensate Drain Piping Outdoor Units Outdoor unit requires condensate drain piping. Condensate drain pipe is constructed with materials approved by local code. See “Placement Considerations” on page 176 to page 185 for information on outdoor unit placement and condensate drainage.
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INSTALLATION & LAYOUT BEST PRACTICES Condensate Drain Piping MULTI F MULTI F MAX Multi F and Multi F MAX Indoor Unit Engineering Manual Common Indoor Unit Drainage System It is usual work practice to connect individual indoor unit drain pipes to one common indoor unit drainage system. The diameter of the common vertical drain pipe should be as large as necessary. (For systems with <80,000 Btu/h total capacity of all connected indoor units, the standard size for the common vertical drain pipe is 0.
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MULTI F MULTI F MAX CUT SHEET Y-Branch Kit • LG Y-Branch Kit PMBL5620 is required when installing two branch distribution units in parallel on one LG Multi F MAX system. • The kit must be properly installed following instructions in the applicable LG manual. Field-supplied branch fittings are not permitted. • Kit components must be kept free of debris and be dry before installation. • All Y-Branch Kits include a clam shell, peel-and-stick insulation jacket. Table 124: Fitting Properties.
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Multi F and Multi F MAX Indoor Unit Engineering Manual MULTI F MULTI F MAX 208 | DESIGN & PRACTICES '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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WIRING CONNECTIONS “General Information” on page 210 “Power Wiring (208-230V) and Communications Cable Details” on page 213 “Indoor Unit Group Control” on page 219
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WIRING CONNECTIONS Multi F and Multi F MAX Indoor Unit Engineering Manual General Information MULTI F MULTI F MAX • All power (line voltage) wiring and communication cable installation must be performed by trained service providers working in accordance with local, state, and National Electrical Code (NEC) / UL / ETL federal regulations related to electrical equipment and wiring, and following the manufacturer product diagrams, requirements, and instructions in this manual.
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MULTI F MULTI F MAX WIRING CONNECTIONS General Information General Communication Cable Specifications 6” ± 6/1 6” 2/1 Power Wiring, Ground to Outdoor Unit GN /YL 13/ 16” 6” ± 6/1 Power Wiring, Ground, Communication Cable From Outdoor Unit To Indoor Unit or from the Outdoor Unit to the Branch Distribution Unit GN/YL = (Ground, Yellow) 6” 2/1 GN /YL 13/ 16” Connecting the Power Wiring / Communications Cable Best practice dictates using ring or spade terminals to terminate power wiring at the
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MULTI F MULTI F MAX WIRING CONNECTIONS General Information Figure 298:Multi F 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 Figure 299:Multi F MAX System General Power / Communications System Schematic. Indoor Unit BD Unit Power Supply Circuit Breaker BD Unit Ground Wiring Outdoor Unit • Secure the separate wires in the control box panel using zip ties.
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MULTI F MULTI F MAX WIRING CONNECTIONS Power Wiring (208-230V) and Communications Cable Details • Find the outdoor unit terminal block by unscrewing the control access panel. Figure 300:Example of Power Wiring and Communications Cable Terminations. Control Access Panel • Side panel of the outdoor unit has knockout holes for the conduits. After install is complete, seal up any gaps between the panel and the conduits.
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MULTI F MULTI F MAX WIRING CONNECTIONS Power Wiring (208-230V) and Communications Cable Details Figure 301: Multi F LMU18CHV System Power Wiring and Communications Cable.
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MULTI F MULTI F MAX WIRING CONNECTIONS Power Wiring (208-230V) and Communications Cable Details Figure 302:Multi F LMU24CHV System Power Wiring and Communications Cable.
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MULTI F MULTI F MAX WIRING CONNECTIONS Power Wiring (208-230V) and Communications Cable Details Figure 303:Multi F LMU30CHV and LMU36CHV System Power Wiring and Communications Cable.
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MULTI F MULTI F MAX WIRING CONNECTIONS Power Wiring (208-230V) and Communications Cable Details Figure 304:Multi F MAX LMU480HV and LMU540HV System Power Wiring and Communications Cable.
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MULTI F MULTI F MAX WIRING CONNECTIONS Power Wiring (208-230V) and Communications Cable Details Figure 305:Multi F MAX LMU600HV System Power Wiring and Communications Cable.
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MULTI F MULTI F MAX WIRING CONNECTIONS Indoor Unit Group Control Communication Cables Between Multiple Indoor Units Operating as a Group (Group Control) 1. If any indoor units were specified to operate in unison, use one (or multiple) three-core Group Control Kit (sold separately) containing extension and Y-splitter cables. One (1) group control cable kit for each indoor unit in the group except for the last indoor unit. Figure 306:Indoor Unit Group to Zone Controller Connections.
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MULTI F MULTI F MAX ACRONYMS Multi F and Multi F MAX Indoor Unit Engineering Manual Table 128: Table of Acronyms.
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Commercial Air Conditioning Division 4300 North Point Parkway Alpharetta, Georgia 30022 www.lg-dfs.com LG Electronics Products Support 1-888-865-3026 USA Follow the prompts for HVAC products.