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Single-Zone Four-Way Ceiling-CaSSette SyStem - LG Duct-Free

1. Model No Outdoor Air Temp Indoor Air Temp F DB Nominal Capacity F DB F WB 61 64 68 70 72 75 Btu h TC P TC PI TC PI TC PI TC PI TC P 0 0 4 21 92 2 60 20 62 2 10 20 64 2 14 20 17 2 16 19 79 2 18 18 95 2 88 5 45 26 29 2 10 25 06 2 19 24 69 2 85 24 17 2 88 23 75 2 91 22 19 3 01 10 9 29 21 2 19 28 03 2 89 27 41 2 96 26 85 3 00 26 40 3 03 25 36 3 13 17 15 32 42 2 91 31 00 3 01 30 40 3 10 29 80 3 19 29 32 3 19 28 20 3 28 20 19 34 37 2 99 33 28 3 09 32 21 3 19 31 59 3 25 31 09 3 30 29 91 3 39 25 23 37 62 3 14 36 50 3 23 35 23 3 35 34 57 3 42 34 03 3 47 32 15 3 57 30 28 40 87 3 30 39 61 3 41 38 25 3 51 37 55 3 59 36 98 3 65 35 63 3 74 35 32 44 13 3 46 42 12 3 58 41 27 3 67 40 53 3 76 39 93 3 83 38 49 3 92 LC427HV 42 000 40 36 46 38 3 56 45 07 3 68 43 64 3 79 42 88 3 86 42 28 3 93 40 74 4 03 45 41 49 19 3 68 48 01 3 81 46 60 3 93 45 82 4 00 45 20 4 05 43 56 4 17 47 43 50 31 3 73 49 19 3 86 47 78 3 98 47 00 4 05 46 38 4 10 44 69 4 23 50 46 50 46 3 71 49 44 3 82 48 22 3 93 47 52 3 99 46 96 4 04 45 37 4 15 55 51 50 70 3 67 49 86 3 76 48 94 3 85 48 38 3 90 47 93 3 93 46 51 4 01 60 56 50 95 3 63 50 29 3 70 49 67 SY 49 24 3 80 48 90 3 82 47 65 3 88 63 59 51 10 3 61 50 54 3 67 50 10 3 72 49 76 3 74 49 49 3 76 48 34 3 80 68 64 51 25 3 59 50 80 3 63 50 54 3 67 50 29 3 68 50 08 3 69 49 03 3 72 TC Total Capacity kBtu h PI Power input K
2. LUU367 427HV Outdoor Unit UU367HV Minimum 7 7 8 inches UU427HV M10 J Minimum 2 3 4 inches Bolting the Outdoor Unit to the Platform Procedure When installing the outdoor unit onto a concrete or rigid mount use a bolt and nut 1 Ensure that the concrete platform will not degrade easily and has enough strength to bear the weight of the unit 2 Include an H beam support Firmly attach the corners otherwise the support will bend 3 Use a hexagon nut Use anti vibration material 5 Include enough space around the concrete foundation for con densate drainage 6 Seal all wiring and piping access holes to prevent bugs from entering the unit P Concrete Platform Specifications Concrete foundations should be made of one part cement two parts sand and four parts gravel The surface of the foundation should be finished with mortar with rounded edges and weatherproofed Note All referenced materials are to be field supplied mages are not to scale LG Figure 32 Platform Mounting Refrigerant Piping Bolt and Connection Location Anti vibration Pad Placement Top of Outdoor Unit Looking Down a Foundation Figure 31 Close up of Bolt Attachment Anchor Bolt M10 ed VIZILI Vj 2 3 4 4 23 32 M Unit Inch Due to our policy of continuous product innovation some specificati
3. ejeq JONpold Model No Dudo Indoor Air Temp F DB F WB Nominal Capacity Air Temp 68 57 73 61 77164 80 67 86 72 90 75 Btu h CF DB Tc shc Pi tc Ishe Pi tc she Pi Te SHC Pi TC shel PI TC SHC PI 5 23 77 17 54 0 76 25 20 18 53 1 03 26 73 19 07 1 12 27 19 18 32 1 13 29 68 18 47 1 14 31 15 18 82 des 10 23 74 17 67 0 78 25 21 18 66 1 06 26 69 19 21 1 15 27 15 18 45 1 17 29 64 18 61 1 17 cnet 18 96 1 17 15 23 70 17 80 0 80 25 18 18 80 1 09 26 65 19 35 1 18 27 71 18 58 1 20 29 59 18 74 1 20 31 07 19 10 1 20 20 23 67 17 92 0 83 25 14 18 93 1 12 26 61 19 49 1 21 27 67 18 72 1 23 29 55 18 88 1 23 31 02 19 23 123 25 23 64 18 05 0 85 25 10 19 07 1 15 26 57 19 63 1 24 27 63 18 85 1 26 29 51 19 01 1 26 30 98 19 37 1 26 30 23 60 18 17 0 87 25 07 19 20 1 18 26 53 19 76 1 27 27 59 18 98 1 29 29 47 19 14 1 30 30 93 19 50 1 29 35 23 57 18 80 0 89 25 03 19 33 1 21 26 50 19 90 1 31 27 55 19 11 1 33 29 42 19 27 1 33 30 89 19 64 ey 40 23 53 18 43 0 91 25 00 19 46 1 23 26 46 20 04 1 34 27 51 19 24 1 36 29 38 19 41 1 36 30 84 19 77 1 36 45 23 50 18 55 0 93 24 96 19 60 1 26 26 42 20 17 1 37 27 47 19 37 1 39 29 34 19 54 1 39 30 80 19 91 1 39 50 23 47 18 67 0 95 24 92 19 73 1 29 26 38 20 31 1 40 27 43 19 50 1 42 29 30 19 67 1 42 30 75 20 04 1 42 55 23 43 18 80 0 97 24 89 19 86 1 32 26 34
4. yod uonaeuuod Buidig OUTDOOR UNIT DIMENSIONS LUU187HV LUU247HV Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 11 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp e ed 2npoild Four Way Ceiling Cassette System Engineering Manual OUTDOOR UNIT DIMENSIONS LUU367HV LUU427HV Figure 3 LUU367HV LUU427HV Outdoor Unit Dimensions 1 z z PWEN Wed on O uona bhg SEQ e E waaauuog adia pinbry dH agaa UO EUNWUWOD POE mY 12 FOUR WAY CASSETTE wounn s cu op Euamo wa 9 es ayoy Eurpnoy edd ja aeq apy Gunna eda e yod uoyJeuu0D Gudy Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp TON snoa Joqauy 10 SSON F WON dauig 1 Guidi LG Figure 4 LCN187HV LCN247HV Indoor Unit Dimensions g 5 ax a youl yup THEE ay ueg aAa O wapaauuog adia pindi z Ampseldy MUR vontad 4 MAO HOU UOREIOIEg Apog j uoqisa sts Fit af i rls 3 FE 2g z t 1d javed yapm pagddng inpoi yam paqddng INDOOR UN
5. 5S CN_TH2 CN_TH3 CN_TH4 CN_FLASH_WRITER Ole Oj n WHO T YL gYL o Q OjO AIR PIPE SUC DISP_I DISP_C M_PIPE CN_TH1 Ww BL OBL 2 J Disc JU RD 5o RD P SENSOR CN_EEV1 CN_COM FUSE 250V 20A NOTE RD RED YL YELLOW BL BLUE BK BLACK FUSE BR BROWN 250V 5A GN YL GREEN YELLOW A mw OPTION H AA ee WIRING OF FIELD aN 9 _1_ _1_ _t1 _1____41___1____1_ _1____ _____ A T 7 D BR BLT GNI BR BOORD ee a D a oe T Vv viv 4WV POWER SUPPLY 1 208 230V 60Hz TOU OOR NY LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 21 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp e eq JONpold Manual ineering Four Way Ceiling Cassette System Eng OUTDOOR UNIT WIRING DIAGRAM LUU367HV and LUU427HV Figure 17 Four Way Ceiling Cassette LUU367HV and LUU427HV Outdoor Unit Wiring Diagram Compressor WCN U WCN V WCN W BR RD RD BL BL YL 3 GN MOTORI MAIN PCB WH CN MOTOR2 BL B CN EEV1 CN COMM r3 WH CN JIG Es P SENSOR H RD Jol CN S CENTRAL CN TH4 CN TH3 CN TH2 RD BL pi485 O mo CN PWR Oju wga i PFC REACTOR POWER SUPPLY 1 208 230V 60Hz INDOOR UNIT 22 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notificat
6. Install radiant heat or another type of heating system to the floor Installing in an Area with High Humidity Levels If the environment is prone to humidity levels of 80 or more near the ocean lakes etc or where steam could collect in the plenum e Install additional insulation to the indoor unit glass wool insulation gt 13 32 inches thick Install additional insulation to the refrigerant piping insulation gt 13 16 inches thick Seal all gaps between the indoor unit and the ceiling tiles make the area air tight so that humidity does not transfer from the plenum to the conditioned space Also add a ceiling grille for ventilation Figure 26 Indoor Unit Clearance Requirements Figure 27 Ceiling Opening Dimensions and Bolt Locations 23 116 inches 26 inches Ceiling Opening Ss OS OS ha SS SS oS OS Se 20 3 8 inches Ceiling Ceiling Tile lt 11 13 16 inches inches LIN SII ly 2 VW 7 I a Se H 6 feet to 12 feet 20 19 32 inches 2215 32 inches Unit Size 18 5 32 inches Tent taD p E a b C taD p D D Ar op a b lt cCoO NI 2 op a b co Ss LI on NI Installing the Drain System Figure 28 Indoor Unit Drain Piping 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
7. Lifes Good SINGLE ZONE FOUR WAY CEILING CASSETTE SYSTEM ENGINEERING MANUAL Single Zone Four Way Ceiling Cassette Heat Pump Systems 1 5 to 3 5 Tons a L et e M l E B LC187HV 18 000 Btu h LC367HV 36 000 Btu h LC247HV 24 000 Btu h LC427HV 42 000 Btu h 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 DFS EM AC 001 US 014D02 For continual product development LG reserves the right to change specifications without notice LG Electronics Inc This document as well as all reports illustrations data information and other materials are the property of LG Electronics U S A Inc TABLE OF CONTENTS ADON LO Seige nn ee ee 4 DuctFree Spit DES SySIEMNS niiina ea eho stause aai aaO E ai O raS ai 4 UNIE NOMENCIALUT G iins ie tr em rntreteeen CeMmrerere rerrrene retrereernt reer th nr eeerrrree er re errr rere re ee rere reer reer rere rr rer 6 Four Way Ceiling CaSSette Systemi D ala vrciirccsstnetscncsiawsecscsersisucrnnczerneioni anmecrenetieasrnersdrnnmimimnnie IE 7 38 FOC ICT TAGS GUI 1S ie curate cate enteritis tte tiered al tepals EER E E A AE 8 OS ADE e REEE aerate elec sae sca tac ete neta deplete dtc dai E E aed EEA Da AE dette oem 9 FEV o D EAE tart A EA AAT EA EEA A
8. Outdoor Unit Heat pump outdoor unit coils are made of nonferrous louvered aluminum fins protected with an integral coil guard The coil for each outdoor unit has a minimum of 14 fins per inch FPI heat exchanger has two rows The coil fins have a factory applied corrosion resistant GoldFin material with hydrophilic coating tested in accordance with ASTM B 117 salt spray test procedure for a minimum of 1 000 hours Coils are factory tested to a pressure of 551 psig Indoor Unit Indoor unit coils are factory built and are comprised of aluminum fins mechanically bonded to copper tubing Each indoor unit has a min imum of two rows of coils which are pressure tested to 551 psig at the factory Each unit is provided with a factory installed condensate drain pan below the coil Fans and Motors Outdoor Unit The 1 1 2 and 2 ton outdoor units LUU187HV LUU247HV include one direct drive variable speed propeller type fan with a horizontal air discharge the 3 and 3 1 2 outdoor units LUU367HV LUU427HV include two fans Fan blades are made of Acrylonitrile Butadiene Styrene ABS material and have a Brushless Digitally Controlled BLDC fan motor The fan motor has inherent protection perma nently lubricated bearings and variable speed with a maximum speed up to 950 rpm Raised guards are provided to limit contact with moving parts Indoor Unit The indoor units have a single direct drive turbo fan manufactured of high strength ABS
9. 1 40 18 84 16 01 1 38 20 21 16 70 1 32 21 20 16 18 1 29 22 95 16 54 1 29 24 02 17 02 I2 122 17 12 14 68 1 34 1848 15 75 1 31 19 83 16 44 124 20 80 15 93 1 21 22 53 16 29 1 20 23 88 16 76 123 TC Total Capacity kBtu h Nominal cooling capacity rating obtained with air entering the indoor unit at 80 F dry bulb DB and 67 F SHC Sensible Heat Capacity kBtu h wet bulb WB and outdoor ambient conditions of 95 F dry bulb DB and 75 F wet bulb WB PI Power input KW Power input KW includes compressor and fan s The shaded table rows indicate reference data When operating at this temperature these values can Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor be dierent it the system ls notmunning consistently unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 31 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Manual ineering Four Way Ceiling Cassette System Eng PERFORMANCE DATA Cooling Capacity Tables Table 18 LC367HV System Cooling Capacity Table Mo
10. 16 04 0 94 21 97 16 18 0 94 23 06 16 48 0 94 55 17 57 15 46 0 64 18 67 16 33 0 87 19 76 16 81 0 94 20 55 16 15 0 96 21 94 16 28 0 96 23 03 16 59 0 96 60 17 55 15 56 0 66 18 64 16 44 0 89 19 73 16 92 0 96 20 52 16 25 0 98 21 91 16 39 0 98 23 00 16 70 0 98 E 65 17 52 15 66 0 67 18 61 16 55 0 91 19 70 17 03 0 98 20 49 16 36 1 00 21 88 16 50 1 00 22 96 16 81 1 00 70 17 50 15 77 0 69 18 58 16 65 0 93 19 67 17 14 1 01 20 46 16 47 1 02 21 84 16 60 1 02 22 93 16 92 1 02 75 17 08 15 51 0 73 18 16 16 40 0 96 19 24 16 90 1 03 20 03 16 25 1 05 21 41 16 40 1 06 22 50 16 73 1 07 80 16 66 15 24 0 77 17 74 16 14 0 99 18 82 16 66 1 06 19 60 16 02 1 08 20 98 16 20 1 10 22 06 16 53 ely 85 16 24 14 96 0 88 17 32 15 87 1 07 18 40 16 40 1 14 19 17 15 78 1 16 20 55 15 98 1 18 21 63 16 32 1 20 90 15 82 14 68 0 99 16 90 15 59 1 16 17 97 16 13 1 21 18 75 15 54 1 23 20 12 15 75 1 26 21 20 16 11 1 28 95 15 37 14 53 1 09 16 44 15 45 1 24 17 51 16 01 1 28 18 00 15 20 1 26 19 65 15 67 1 32 20 72 16 04 15 100 14 99 14 14 1 14 16 06 15 06 1 26 17 13 15 63 1 29 17 77 14 96 1 28 19 28 15 33 1 32 PAU ESIS pei foer 1 35 105 14 62 13 75 1 20 15 69 14 68 1 28 16 76 15 25 1 30 17 53 14 73 1 30 18 90 15 00 1 32 19 97 15 38 105 110 14 24 13 28 1 16 15 32 14 20 1 21 16 39 14 77 1 21 17 16 14 29 1 21 18 53 14 57 1 22 19 60 14 96 dea 115 13 87 12 88 1 05
11. 20 44 1 43 27 39 19 63 1 45 29 25 19 80 1 45 D i Zy 11 45 60 23 40 18 92 1 00 24 85 19 99 1 35 26 30 20 58 1 46 27 35 19 76 1 48 29 21 19 93 1 49 30 66 20 31 1 48 a 65 23 36 19 05 1 02 24 81 20 12 1 38 26 27 20 71 1 49 27 31 19 89 1 52 29 17 20 06 1 52 30 62 20 44 1 52 70 23 33 19 17 1 04 24 78 20 25 1 41 26 23 20 84 1 52 27 27 20 02 1 55 29 13 20 19 1 55 30 57 AS 1 55 75 22 77 18 85 1 11 24 21 19 94 1 45 25 66 20 55 1 57 26 70 19 75 1 59 28 55 19 94 1 61 29 99 20 34 1 62 80 22 21 18 53 1 17 23 65 19 63 1 50 25 09 20 25 1 61 26 13 19 48 1 64 27 97 19 69 1 66 29 42 20 10 1 68 85 21 65 18 19 1 33 23 09 19 30 1 63 24 53 19 93 1 72 25 57 19 19 1 75 27 40 19 43 1 78 28 84 19 84 1 81 90 21 09 17 85 1 49 22 53 18 96 1 76 23 96 19 61 1 84 25 00 18 90 1 87 26 83 19 15 1 91 28 27 19 59 1 94 95 20 49 17 66 1 65 21 92 18 79 1 87 23 35 19 46 1 94 24 00 18 48 1 91 26 20 19 05 2 00 27 63 19 50 2 04 100 19 99 17 19 1 73 21 42 18 31 1 91 22 85 19 00 1 96 23 69 18 19 1 94 25 70 18 64 2 00 27 13 19 10 2 04 105 19 49 16 71 1 82 20 92 17 84 1 95 22 35 18 54 1 97 23 38 17 91 1 97 25 20 18 23 2 00 26 63 18 70 2 04 110 18 99 16 14 1 76 20 42 17 26 1 84 21 85 17 96 1 83 22 88 17 37 1 83 24 70 17 71 1 85 26 13 18 19 1 89 115 18 49 15 66 1 58 19 92 16 78 1 60 21 35 17 49 1 56 22 38 16 93 1 54 24 20 17 29 1 55 PARSE TTT 1 58 118 17 47 14 93
12. 72 90 75 Btu h FDB TC SHC PI TC sHC PI TC SHC PI TC SHC PI TC SHC Pl TC SHC PI 5 41 60 30 30 1 62 44 19 32 00 2 20 46 77 32 94 2 38 48 64 31 64 2 42 51 94 31 91 2 42 5AD2 3251 2 42 10 41 54 30 52 1 67 44 12 32 24 2 26 46 70 33 18 2 45 48 57 31 87 2 49 51 86 32 14 2 49 54 44 32 75 2 48 15 41 48 30 74 1 71 44 06 32 47 2 32 46 64 33 42 2 51 48 50 32 10 2 55 51 79 32 37 2 56 54 36 32 98 255 20 41 42 30 96 1 76 44 00 32 70 2 38 46 57 33 66 2 58 48 43 32 33 2 62 51 71 32 60 2 63 94 29 22 2 62 25 41 36 31 18 1 80 43 93 32 93 2 45 46 50 33 90 2 65 48 36 32 56 2 69 51 64 32 83 2 69 5421 33 45 280 30 41 30 31 39 1 85 43 87 33 16 2 51 46 43 34 14 2 11 48 29 32 79 2 16 51 57 33 06 2 16 54 13 33 69 Pays 35 41 24 31 61 1 89 43 81 33 39 2 57 46 37 34 37 2 18 48 22 33 01 2 82 51 49 33 29 2 83 54 05 33 92 2 82 40 41 18 31 83 1 94 43 74 33 62 2 63 46 30 34 61 2 85 48 15 33 24 2 89 51 42 33 52 2 90 53 97 34 15 2 89 45 41 13 32 04 1 99 43 68 33 85 2 69 46 23 34 84 2 91 48 08 33 46 2 96 51 34 33 75 2 96 53 90 34 38 2 96 50 41 07 32 26 2 03 43 62 34 07 2 15 46 17 35 08 2 98 48 01 33 69 3 03 51 27 33 97 3 03 6 62 34 62 3 03 55 41 01 32 47 2 08 43 55 34 30 2 82 46 10 35 31 3 05 47 94 33 91 3 10 51 19 34 20 3 10 53 74 34 85 3 09 60 40 95 32 68 2 12 43 49 34 53 2 88 46 03 35 54 3 11 47 87 34 13
13. 80 23 74 2 01 34 42 24 27 2 00 36 48 24 96 2 05 122 25 69 21 53 2 09 ZEW 23 10 2 04 29 74 24 11 1 93 S121 Zoo 1 88 33 80 23 90 1 87 35 82 24 59 1 92 TC Total Capacity kBtu h Nominal cooling capacity rating obtained with air entering the indoor unit at 80 F dry bulb DB and 67 F SHC Sensible Heat Capacity kBtu h wet bulb WB and outdoor ambient conditions of 95 F dry bulb DB and 75 F wet bulb WB PI Power input KW Power input KW includes compressor and fan s The shaded table rows indicate reference data When operating at this temperature these values can Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor be diferent it the systemi 1s not unningconsistentiy unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit 32 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp PERFORMANCE DATA Cooling Capacity Tables Table 19 LC427HV System Cooling Capacity Table Model No Outdoor Indoor Air Temp F DB F WB Nominal Capacity Air Temp 68 57 73 61 77164 80 67 86
14. AA AE NA AE E A E E eats sauedonannttauntaea 10 IMENSO S eE E E EE E EE E ENE E E EEEE NAE EE E EE T 11 14 ACUT ON aA EA AEEA E E A E E A 15 16 Air Velocity and Temperature Distribution osusiesizctiscit seattle iene wsdl dep a Sida ca wai Nia 17 18 PRG AINE TOW ACU N occa tce a ASE E EEEE teins e E EES E E e EE E E E RN 19 20 W D S a E EE E TE EA AAA pst ees spo EO AEO echoes eee 21 23 ACESO S a sir nts E pater E S lee E dea altar dda E tpt oleae ad E E E ES 24 28 Perr NCE D Aan T E E EE 29 36 OAC a E a E EEEE aoe eat pacts closed EE ETT O AE A as 29 33 EEE E EE VANS E A A E E ates ate A N AAT EA A A A A sane 34 35 PRO NG ARNON SUN ING Sarera E A E 37 52 EUDEN ECION FOGG ett ct nere cece attrac atic eae ae areca geocaches ssh aoe acta ge ep academe oe 38 39 guiding terete ite gle Deso GUIE soniri na iTe eteeet ane are EE ce enter ere antennae ee er en eee 40 44 PAC CCE OSI AUOINS sa sete T seca cic E E ge ca 2 E tte eet E tinned bea ed ea nae E E aesh de a neta A E aecneanem aes 45 52 Refrigerant Piping Design amp Layout Best Practices cssssesscsssesesseseeseeesecsesesseceseesesaeseesesaesecaesessecaesessesasseeaesaesecaesessecaesessesassessesanetas 53 218 Design Guideline SUMIMALY ccccccssseccsssssessssescessssescsssssescsssssessssssssessussssssssssssssscesssssasessausesasssesesassaseesassasessausesassassesassasessausasessauessausasessausaseesausasansates 54 Selecting Field Supplied Copper Tubing csccceccessssessessesessessescsecssc
15. Also deter mine the elevation difference of the indoor unit above or below the outdoor unit Find corresponding cooling or heating capacity correction factors as shown below Multiply the correction factors by the cooling or heating capacity obtained from the capacity table using design conditions The result is the NET cooling or heating capacity Refrigerant Line Length Derates For air cooled systems a capacity correction factor may have to be applied to account for the length of the system s refrigerant pipe Rate of change in capacity due to increased piping lengths is shown below Table 24 Cooling Capacity Coefficient Factor LC187HV 18 000 Btu h Rate of Capacity LC247HV 7 000 Btu h Change LC367HV 36 000 Btu h LC427HV T 000 Btu h Table 25 Heating Capacity Coefficient Factor Piping Length ft 131 2 164 0 196 9 229 7 246 0 ee Change LC367HV 36 000 Btu h LC427HV 42 000 Btu h Equivalent Piping Length for Piping Components Table 26 Equivalent Piping Length for Elbows Component Size Inches os os or os fr s tis ie te e ar es es 20 Altitude Correction Factor The impact of air density must be considered on systems installed at a significant altitude above sea level therefore locally accepted alti tude correction factors must be applied Due to our policy of continuous product innovation some specifications may change without notification 38 FOUR WAY CASSETTE LG Electron
16. Factory installed microprocessor controls in the outdoor unit and indoor unit shall perform functions to efficiently operate the single zone system communicating via an 18 AWG four stranded and shielded conductor power transmission cable Microprocessor based algorithms provide component protection soft start capability refrigeration system pressure temperature defrost and ambient control System can be operated through a handheld wireless controller supplied with the four way ceiling cassette indoor unit Condensate Lift Pump The indoor unit is provided with a factory installed and wired conden sate lift pump capable of providing a minimum 31 1 2 inch lift from the bottom surface of the unit Drain pump has a safety switch to shut off the indoor unit if the condensate rises too high in the drain pan Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 71 soeds PXIUBUDSIN PUL SUOI JDOUUOY e911 99 9 ACRONYMS Table 46 Table of Acronyms Acrylonitrile Butadiene Styrene Kilo Watts Air Conditioner Light Emitting Diode Advanced Control Platform LEED Leadership in Energy and Environmental Design ASHRAE American Society of Heating Refrigeration and Air Conditioning Engineers C ee rises Digaly Conrod woe __MaximumovercurentProtect
17. HT 700 polymeric resin the fans are statically and dynamically balanced The fan motor is brushless digitally con trolled BLDC with permanently lubricated and sealed ball bearings The fan motor assembly is mounted on vibration attenuating rubber grommets Fan speed is controlled using a microprocessor based di rect digital control algorithm that provides pre programmed field se lectable fixed or auto fan speeds in the Heating and Cooling modes The indoor fan has Low Med High Power Cool and Auto settings for Cooling mode and has Low Med High and Auto settings for Heating mode Auto setting adjusts the fan speed based on the difference between the controller set point and space temperature LG Four Way Ceiling Cassette System Figure 70 Four Way Ceiling Cassette system LC367HV LC427HV Models Air Filter Indoor Unit Return air is filtered with a factory supplied removable ut washable filter accessible ay from the bottom of the unit A plasma filter is also available as an optional accessory Electrical The system was designed to operate using 208 230 60 1 power with voltage varianc es of 10 and includes overcurrent protection The indoor unit is powered through the outdoor unit be m e e me e e e Controls Indoor and outdoor units are factory wired with necessary electrical control components printed circuit boards thermistors sensors terminal blocks and lugs for power wiring
18. Insulation Refrigerant Pi ping System Insulation Figure 51 Close Up of Refrigerant Piping Insulation at the All refrigerant piping including field provided isolation ball valves service valves One o Malone nit and elbows shall be completely insulated up to the indoor unit piping connec tions 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 separately Any exposed piping may generate condensate or will cause burns if touched Insulation shall be a minimum 1 2 thick and thickness may need to be increased based on ambient conditions and local codes Insulation for Refrigerant Piping Field Supplied Insulation for Field Installed Piping Uo Field Supplied All insulation joints shall be glued with no air gaps Insulation material shall fit snugly against the refrigeration pipe with no air space between it and the pipe Insulation passing through pipe hangers inside conduit and or sleeves must not be compressed Protect insulation inside hangers and supports with a second layer All pipe insulation exposed to the sun and outdoor elements shall be Ensure no gaps are present properly protected with PVC aluminum vapor barrier or alternatively placed in a weather resistant enclosure such as a pipe rack with a top cover and meet local codes Because Four way ceiling cassette indoor units are often pa
19. environ ment four way ceiling cassette indoor units operate as low as 34 dB A LG customers often ask if the outdoor unit is running after commissioning is complete All rotating components are soft started using digitally controlled inverters which reduce undesirable noise caused by fans and compressors cycling on and off Comfort Control at its Best Tight temperature control through precise load matching Unlike traditional air condi tioning control systems which use thermo Static controls to maintain room tempera tures LG inverters continuously vary the indoor unit fan speed and refrigerant flow in directly providing lower and more consistent humidity levels in the conditioned space The longer the indoor coil temperature is be low the dewpoint of the room in conjunction with air movement across the coil the space humidity level will vary little compared to technologies that cycle fans and compres sors on and off multiple times per hour The outdoor unit responds by varying the com pressor speed and fan motors as needed to maintain system operating pressure As a result four way ceiling cassette systems delivers precise space temperature control 8 FOUR WAY CASSETTE Inverter Driven The compressor is optimized to maximize compressor efficiency which reduces power consumption and monthly utility bills This inverter technology allows the LG four way ceiling cassette outdoor unit to vary the com pressor m
20. from the indoor unit to the outdoor unit Be sure to firmly connect the wiring Separately wire the high and low voltage lines Use heat proof electrical wiring capable of withstanding temperatures up to 167 F Wiring Connections Figure 66 Circuit Breaker Time Delay Fuse Connection Main Power Source a m Air Circuit Breaker Conditioner Use a circuit breaker Or time delay fuse Use outdoor and waterproof connection cable rated up to 300V for the connection between indoor and outdoor unit Do not allow wire to touch refrigerant tubing the compressor or any moving parts Connecting the Power Wiring Communications Cable to the Indoor Unit 1 To access the terminal block open the control box cover 2 Insert the power wiring communications cable from the outdoor unit through the sides of the indoor unit and control box Pass the wiring through the designated access holes to prevent damage To prevent electromagnetic interference and prod uct malfunction leave a space between the power wiring and communications cable outside of the indoor unit 3 Connect each wire to its appropriate terminal on the indoor unit control board Verify that the color and terminal numbers from the outdoor unit wiring match the color and terminal numbers on the indoor unit 4 Neatly arrange power wiring communications cable and secure with the appropriate cable restraint When clamping do not apply force to
21. is above indoor unit All Elevation Limitations are DFS System Layout Figure 34 Typical LC187HV and LC247HV System Layout Max Length A Max Elevation B Outdoor unit Unit Feet Indoor unit 164 Indoor unit Figure 35 Typical LC347HV and LC427HV System Layout Unit Feet Max Length A Max Elevation B Outdoor unit Indoor unit 246 A D Indoor unit Outdoor unit Due to our policy of continuous product innovation some specifications may change without notification 54 DUCT HIGH STATIC LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG REFRIGERANT PIPING DESIGN Copper is the only approved refrigerant pipe material for use with LG DFS air conditioning products and LG recommends hard drawn rigid type K or L or annealed tempered copper pipe Drawn temper rigid ACR copper tubing is available in sizes 3 8 through 2 1 8 inches ASTM B 280 clean dry and capped e Annealed temper soft ACR copper tubing is available in sizes 1 4 through 2 1 8 inches ASTM B 280 clean dry and capped Table 35 ACR Copper Tubing Material Seamless Phosphorous Deoxidized UNS 12200 DHP Straight Lengths H58 Temper Copper Expansion and Contraction Under normal operating conditions the vapor pipe temperature of a DFS system can vary as much as 280 F With this large variance in pipe temperature the
22. reading of the conditioned area temperature occupied space e Unconditioned outdoor air may affect indoor unit performance which may necessitate oversizing the indoor unit Figure 23 Unconditioned Outdoor Air Ducted to Indoor Units Inline Fan Damper with Filter OA Wall Cap eS ange i a TE a ae 0 E 6 3 1 Ventilation Kit e a Ta oo es Front Panel Four Way Ceiling Cassette System Engineering Manual Due to our policy of continuous product innovation some specifications may change without notification 42 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG BUILDING VENTILATION DESIGN GUIDE Method 4 Coupled Dedicated Outdoor Air CDOA A separate dedicated outdoor air system delivers air directly to a Duct Free Split system 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 Note Outside air may flow backward through the return air filter grille when the indoor unit fan speed is reduced or stops when the space load is Satisfied This may result in captured particulate on the filter media being blown back into the conditioned space Advantages Disadvantages
23. side as shown in Figure 40 de eg Figure 41 Pipe Support at Indoor Unit A A B 12 19 Due to our policy of continuous product innovation some specifications may change without notification 58 DUCT HIGH STATIC LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp REFRIGERANT PIPING DESIGN 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 dete rioration Also follow federal state and local regulations and codes when choosing a sleeve type Figure 42 Pipe Sleeve Options Inside wall concealed Outside wall Hes v Hy Roof pipe shaft Area between fire resistant insulation and boundary wall Floor fire resistance Outside wall exposed Refrigerant Piping System Layout Note Diameter of penetrations shall be determined by pipe diameter plus the thickness of the insulation For example Diameter of Gas Piping 1 2 Diameter of Liquid Piping 1 4 Thickness of Gas Piping Insulation 0 4 x 2 Thickness of Liquid Piping Insulation 0 4 x2 Surplus 0 8 Sleeve diameter total 3 1 minimum A Sleeve Insula
24. the wiring connections 5 Firmly reattach the control box cover do not catch the wiring in the electric box cover and make sure the cover firmly closes 6 Fill in any gaps around the wiring access holes with sealant to prevent foreign parti cles from entering the indoor unit Using a Conduit Figure 68 Indoor Unit Terminal Block 1 Remove the rubber stopper on the indoor unit Location Using a Conduit Pass the power wiring communications cable j5 through the conduit the conduit mounting Bsa plate and to through the control panel of the indoor unit 2 Connect the power wiring communications cable to the indoor unit terminal block 3 Screw the conduit mounting plate to the indoor unit 4 Tighten the conduit and the conduit mounting plate together Ws oat R Conduit Oe Figure 67 Power Wiring and Communications Cable Connection Access Power Wiring Wired Controller Cabe L Control Box Cover Screws Control Box Cover Wiring Cable Connections Lock Nut N we Conduit Mounting Plate E LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 69 soeds jedIUeYDII J PUL SUOIJDBUUOY e911 99 9 Four Way Ceiling Cassette System Engineering Manual MECHANICAL S
25. 1 27 17 2 44 68 64 29 44 2 30 29 18 2 33 29 04 2 36 28 89 2 36 28 77 2 37 28 17 2 39 TC Total Capacity kBtu h PI Power input KW Power input KW includes compressor and fan s Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit 34 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Nominal heating capacity rating obtained with air entering the indoor unit at 70 F dry bulb DB and 60 F wet bulb WB and outdoor ambient conditions of 47 F dry bulb DB and 43 F wet bulb WB LG Table 22 LC367HV System Heating Capacity Table PERFORMANCE DATA Heating Capacity Tables Model No Outdoor Air Temp Indoor Air Temp F DB Nominal Capacity F DB F WB 61 64 68 70 72 75 Btu h TC PI TC PI TC PI IC PI TC PI TC PI 0 0 4 19 98 2 41 18 81 2 50 18 80 2 54 18 37 2 56 18 03 2 58 17 27 2 67 5 4 5 23 43 2 44 22 34 2 53 22 01 2 58 21 54 2 61 21 17 2 63 20 32 2 12 10 9 25 75 2 47 24 71 2 56 24 16 2 62 23 67 2 66 23 27 2 69 22 30 211 17 15 28 29 2 51 27 31 2 60 26 52 2 68 26 00
26. 1 Propeller x 2 Brushless Digitally Controller Direct 1 1 411 0 43 Ozi KES _ O0 CO O KR 246 Piping Length no additional refrigerant ft Maximum Elevation Difference ft oo B EEV Electronic Expansion Valve Heating capacity rating obtained with air entering the indoor unit at 70 F dry bulb DB and 60 F wet IDU Indoor Unit bulb WB and outdoor ambient conditions of 47 F dry bulb DB and 43 F wet bulb WB ODU outdoor Unit Power Input is rated at high speed Power wiring is field supplied and must comply with the applicable local and national codes All power communication cables to be minimum 18 AWG 4 conductor stranded shielded and must comply with applicable and national code This unit comes with a dry helium charge i Take appropriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A This data is rated 0 ft above sea level with 24 6 ft of refrigerant line per indoor unit and a 0 ft level refrigerant according to applicable regulations 40 CFR Part 82 Subpart F under section 608 of CAA difference between outdoor and indoor units i Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and are the Cooling capacity rating obtained with air entering the indoor coil at 80 F dry bulb DB and 67 F wet bulb iti WB and outdoor ambient conditions of 95 F dry bulb DB and 75 F wet bulb WB en cooling and heating mod
27. 10 01 122 9 84 1 23 9 44 1 27 10 9 12 18 1 15 11 69 1 19 11 43 1 22 11 20 1 24 11 01 1 25 10 58 1 29 17 15 13 60 1 17 13 13 1 21 12 75 1 25 12 50 1 27 12 30 1 29 11 83 1 32 20 19 14 46 1 19 14 00 1 22 13 55 1 27 13 29 1 29 13 08 1 31 12 59 1 35 25 23 15 90 1 22 15 43 1 25 14 89 1 30 14 61 1 32 14 38 135 13 84 1 38 30 28 17 34 1 25 16 80 1 29 16 22 1 33 15 93 1 36 15 69 1 38 15 11 1 42 35 32 18 78 1 28 18 18 1 33 17 56 1 36 17 24 1 39 16 99 1 42 16 38 1 45 LC187HV 18 000 40 36 19 73 1 32 19 18 1 36 18 57 1 40 18 25 1 43 17 99 1 45 17 34 1 49 45 41 20 93 1 36 20 43 1 41 19 83 1 45 19 50 1 48 19 24 1 50 18 54 1 55 47 43 21 41 1 38 20 93 1 43 20 33 1 47 20 00 1 50 19 73 1 52 19 02 1 57 50 46 21 47 1 37 21 04 1 42 20 52 1 46 20 22 1 48 19 98 1 50 19 31 1 54 55 51 21 58 1 36 21 22 1 39 20 83 1 43 20 59 1 44 20 40 1 46 19 79 1 49 60 56 21 68 1 35 21 40 1 37 21 14 1 40 20 95 1 41 20 81 1 42 20 28 1 44 63 59 21 74 1 34 21 51 1 36 21 32 1 38 21 18 1 39 21 06 1 39 20 57 1 41 68 64 21 81 1 33 21 62 1 34 21 51 1 36 21 40 1 36 21 31 1 37 20 86 1 38 TC Total Capacity kBtu h PI Power input KW Power input KW includes compressor and fan s Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit Table 21 LC247HV System Heating Capacity Table Nominal heating capacity rating obtained with air enteri
28. 14 94 13 80 1 06 16 01 14 38 1 03 16 79 13 93 1 02 18 15 14 22 1 02 19 22 14 62 1 04 118 13 10 12 28 0 93 14 13 13 17 0 91 15 16 13 74 0 87 15 90 13 31 0 85 17 21 13 61 0 85 18 24 14 00 0 87 122 12e i207 0 89 13 86 12 95 0 86 AST 13 52 0 82 15 60 13 10 0 80 16 90 13 40 0 79 17 91 13 79 0 81 TC Total Capacity kBtu h Nominal cooling capacity rating obtained with air entering the indoor unit at 80 F dry bulb DB and 67 F SHC Sensible Heat Capacity kBtu h wet bulb WB and outdoor ambient conditions of 95 F dry bulb DB and 75 F wet bulb WB PI Power input KW Power input KW includes compressor and fan s The shaded table rows indicate reference data When operating at this temperature these values can Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor De diterentit the syster s nat minning Sons Senn unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit 30 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp PERFORMANCE DATA Cooling Capacity Tables Table 17 LC247HV System Cooling Capacity Table
29. 187 247 367 427HV Figure 15 LCN187 247 367 427HV Refrigerant Flow Diagram Gas pipe connection port Heat exchanger flare connection Heating C T A UAD D LC Evaporator Outlet Cooling Turbo fan Temperature Thermistor Indoor Air Temperature Thermistor Temperature Thermistor Liquid pipe connection port flare connection Evaporator Inlet Table 7 Four Way Ceiling Cassette Indoor Unit Refrigerant Pipe Connection Port Diameters Model No Vapor inch Liquid inch LC187HV LC247HV Four Way Ceiling Cassette System Engineering Manual Table 8 Four Way Ceiling Cassette Indoor Unit Thermistor Details Description Based on Cooling Mode PCB Connector Indoor Air Temperature Thermistor CN ROOM Evaporator Inlet Temperature Thermistor CN PIPE IN Evaporator Outlet Temperature Thermistor CN PIPE OUT 20 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp OUTDOOR UNIT WIRING DIAGRAM LUU187HV and LUU247HV Figure 16 Four Way Ceiling Cassette LUU187HV and LUU247HV Outdoor Unit Wiring Diagram PFC REACTOR gt ffs a n CN PFC OUT CN_4WAY oO LL a a O MAIN PCB CN MOTOR1
30. 2 12 25 58 2 16 24 60 2 84 20 19 29 83 2 54 28 88 2 62 27 95 2 11 27 41 2 16 26 99 2 80 25 96 2 88 25 23 32 40 2 60 31 44 2 67 30 35 2 11 29 77 2 83 29 31 2 88 28 21 2 95 30 28 34 98 2 67 33 90 2 15 32 13 2 84 32 13 2 90 31 65 2 95 30 49 3 02 35 32 31 595 2 13 36 36 2 83 35 12 2 90 34 49 2 97 33 98 3 02 32 76 3 10 LC367HV 36 000 40 36 39 47 2 81 38 36 2 91 37 14 2 99 36 49 3 05 35 98 310 34 68 3 19 45 41 41 86 2 91 40 86 3 01 39 66 3 10 39 00 3 16 38 47 3 20 37 07 3 30 47 43 42 82 2 95 41 86 3 05 40 66 3 15 40 00 3 20 39 47 3 24 38 03 3 34 50 46 42 94 2 93 42 08 3 02 41 04 3 11 40 44 3 15 39 97 3 19 38 62 3 28 55 51 43 15 2 90 42 44 2 97 41 65 3 04 41 18 3 08 40 79 3 11 39 59 3 17 60 56 43 36 2 87 42 80 2 93 42 27 2 98 41 91 3 00 41 62 3 02 40 56 3 07 63 59 43 49 2 85 43 01 2 90 42 64 2 94 42 35 2 96 42 12 2 97 41 14 3 00 68 64 43 61 2 83 43 23 2 87 43 02 2 90 42 80 2 91 42 62 2 92 41 73 2 94 TC Total Capacity kBtu h PI Power input KW Power input KW includes compressor and fan s Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit Table 23 LC427HV System Heating Capacity Table Nominal heating capacity rating obtained with air entering the indoor unit at 70 F dry bulb DB and 60 F wet bulb WB and outdoor ambient conditions of 47 F dry bulb DB and 43 F wet bulb WB
31. 3 16 51 12 34 42 3 17 53 66 35 07 3 16 STi 65 40 89 32 90 217 43 43 34 75 2 94 45 97 35 77 3 18 47 80 34 36 3 23 51 04 34 65 3 24 53 58 35 30 323 70 40 83 33 11 2 21 43 36 34 97 3 00 45 90 36 00 3 25 47 73 34 58 3 30 50 97 34 87 3 30 53 00 35 538 3 30 15 39 84 32 56 2 36 42 37 34 44 3 10 44 90 35 50 3 34 46 73 34 12 3 39 49 96 34 45 3 42 5249 35 13 3 44 80 38 86 32 01 2 50 41 39 33 90 3 19 43 91 34 98 3 42 45 73 33 65 3 49 48 95 34 01 3 54 DLE 3472 3 59 85 37 89 31 42 2 84 40 41 33 33 3 47 42 92 34 43 3 67 A474 33 15 3 74 47 96 33 55 3 80 50 47 34 28 3 86 90 36 91 30 83 3 18 39 43 32 75 3 74 41 94 33 88 3 92 43 75 32 64 3 98 46 96 33 08 4 06 49 47 33 83 4 14 95 35 86 30 51 3 52 38 36 32 45 3 99 40 85 33 62 4 14 42 00 31 92 4 07 45 85 32 91 427 48 35 33 68 4 35 100 34 98 29 69 3 69 37 48 31 63 4 07 39 98 32 81 417 41 46 31 43 4 14 44 98 32 20 4 27 47 47 32 99 4 35 105 34 11 28 87 3 0r 36 61 30 82 4 15 39 11 32 02 4 19 40 91 30 93 4 21 44 10 31 49 4 26 46 60 32 30 4 36 110 33 24 27 88 3 76 35 74 29 82 3 92 38 23 31 03 3 91 40 04 30 01 3 89 43 23 30 60 3 93 A573 Ole 4 02 115 32 37 27 05 3 38 34 86 28 98 3 41 37 36 30 20 3 33 39 17 29 24 3 29 42 36 29 87 3 30 44 86 30 70 SP 118 30 57 25 78 2 99 32 97 27 65 2 94 35 36 28 85 2 81 37 10 27 95 2 15 40 16 28 57 2 14 42 56 29 39 2 81 122 29
32. 6 29 59 2 26 60 35 10 27 76 1 55 37 28 29 32 2 10 39 46 30 18 221 41 03 28 99 2 31 43 82 29 24 2 31 46 00 29 79 2 31 Sa 65 35 05 27 94 1 58 37 22 29 51 2 14 39 40 30 38 2 32 40 97 29 18 2 36 43 75 29 43 2 36 45 93 29 98 236 70 34 99 28 12 1 61 37 17 29 70 2 19 39 34 30 58 2 37 40 91 29 37 2 41 43 69 29 61 2 41 45 86 30 18 2 41 15 34 15 27 66 1 72 36 32 29 25 2 26 38 49 30 15 2 43 40 05 28 98 2 48 42 82 29 26 2 50 44 99 29 83 25i 80 33 31 27 18 1 82 35 47 28 79 2 33 37 64 29 71 2 50 39 20 28 58 2 55 41 96 28 89 2 59 44 12 29 48 2 62 85 32 48 26 69 2 07 34 63 28 31 2 93 36 79 29 24 2 68 38 35 28 15 2 13 41 10 28 50 2 11 43 26 29 11 2 82 90 31 64 26 18 2 32 33 79 27 81 2 13 35 94 28 77 2 86 37 50 27 72 2 91 40 25 28 10 2 96 42 40 28 73 3 02 95 30 74 25 91 2 57 32 88 27 56 2 91 35 02 28 55 3 02 36 00 27 11 2 97 39 30 27 95 3 11 41 44 28 61 3 18 100 29 99 25 21 2 10 32 13 26 87 2 97 34 27 27 87 3 04 35 53 26 69 3 02 38 55 27 35 3 11 40 69 28 02 3 18 105 29 24 24 52 2 82 31 38 26 17 3 03 33 52 27 19 3 06 35 07 26 27 3 07 37 80 26 75 3t 39 94 27 43 3 18 110 28 49 23 68 2 14 30 63 25 33 2 86 32 77 26 35 2 85 34 32 25 49 2 84 37 05 25 99 2 87 39 20 26 68 2 93 115 27 74 22 97 2 46 29 88 24 61 2 49 32 02 25 65 2 43 33 57 24 84 2 40 36 31 25 36 2 40 38 45 26 07 2 46 118 26 20 21 90 2 18 28 26 23 49 2 15 30 31 24 50 2 05 31
33. 7HV LC427HV system Model Indoor Unit Outdoor Unit LCN187HV LCN247HV LCN367HV LCN427HV LUU187HV LUU247HV LUU367HV LUU427HV PT UMC1 Nominal Cooling Capacity Btu h 42 000 Cooling Power Input kW 4 07 Nominal Heating Capacity Btu h 47 000 Heating Power Input kW 4 05 Power Supply V Hz 208 230 1 60 Outdoor Unit Operating Range 5 118 0 64 Indoor Unit Operating Range 57 77 59 81 ndoor Temperature Setting Range Cooling F DB Heating F WB 65 86 61 86 D 2 Q gt R410A EEV Refrigerant Type Refrigerant Control Indoor Unit Sound Pressure Level 3 dB A H M L 4 Outdoor Unit Sound Pressure Level 3 dB A Cool Heat Indoor Unit Net Shipping Weight Ibs Outdoor Unit Net Shipping Weight Ibs Grille Net Shioping Weight Ibs Power Wiring Communications Cable No x AWG Power Supply No AWG Compressor Type x Qty Dehumidification Rate pts hr ejeq JONpold 46 44 43 52 54 55 65 203 227 38 36 34 48 52 46 55 133 148 11 20 4x18 Jx 2 Twin Rotary x 1 O1 lt Indoor Unit Type x Qty Turbo x 1 Outdoor Unit Type x Qty Motor Drive irflow Rate Indoor Unit Max H M L CFM 1 060 989 918 Outdoor Unit CFM 1 942 x 2 Piping Liquid in Vapor in Indoor Unit Condensate Drain O D I D in Additional Refrigerant Charge oz ft Maximum Pipe Length ft Propeller x
34. 97 25 35 2 86 3299 21 20 2 19 34 70 28 39 2 64 36 41 27 51 2S 3943 28 14 2 56 41 79 28 95 2 63 TC Total Capacity kBtu h Nominal cooling capacity rating obtained with air entering the indoor unit at 80 F dry bulb DB and 67 F SHC Sensible Heat Capacity kBtu h wet bulb WB and outdoor ambient conditions of 95 F dry bulb DB and 75 F wet bulb WB Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor De OTE Neen NE SYSS NAN mining CONEISIEMIY unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 33 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ejeq ONpold Manual ineering Four Way Ceiling Cassette System Eng PERFORMANCE DATA Heating Capacity Tables Table 20 LC187HV System Heating Capacity Table Model No Outdoor Air Temp Indoor Air Temp F DB Nominal Capacity F DB CF WB 61 64 68 70 72 75 Btu h TC P ne P Te P TC PI TC PI TC P 0 0 4 8 96 1 12 8 42 1 16 8 43 1 18 8 24 1 19 8 08 1 20 7 74 1 24 5 45 10 89 1 14 10 37 1 18 10 23 1 20
35. ATIC REFRIGERANT PIPING DESIGN Refrigerant Piping System Layout Using Elbows Table 39 Equivalent Piping Length for Piping Components Field supplied elbows are allowed as long as they are designed for Size Inches use with R410A refrigerant The designer however should be cau ae 1 3 8 5 8 tious with the quantity and size of fit tings used and must account Elbow ft for the additional pressure losses in equivalent pipe length calcu lation The equivalent pipe length of each elbow must be added to each pipe segment Obstacles Figure 37 Installing Piping Above and Below an Obstacle When an obstacle such as an l beam or concrete T is in the path Ta mui Mindrum i of the planned refrigerant pipe run it is best practice to route the pipe over the obstacle If adequate space is not available to route the insulated pipe over the obstacle then route the pipe under the obstacle In either case it is imperative the horizontal section of pipe as i i Minimum i above or below the obstacle be a minimum of three 3 times greater 3x than the longest vertical rise or fall distance Above an obstacle Below an obstacle Pipe Slope The horizontal pipe slope cannot exceed 10 up or down In line Refrigeration Components The designer and installer should verify the refrigerant piping system Is free of traps sagging pipes sight glasses filter dryers solonoid valves tee fittings etc on the refrigerant piping s
36. IT DIMENSIONS LCN187HV LCN247HV D LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 13 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ejeq 2npoild Four Way Ceiling Cassette System Engineering Manual INDOOR UNIT DIMENSIONS LCN367HV LCN 427HV Figure 5 LCN367HV LCN427HV Indoor Unit Dimensions el mr Sth cies HAE igi i etOH weg Be t Amssasdy tg vONtIOIeg EE inang MUU oopeioaag EE poq j vonisoa uonejegsu my Guna Gam MAONVOS PW PARA S 14 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ACOUSTIC DATA Outdoor Units Figure 6 Four Way Ceiling Cassette Outdoor Unit Sound Pressure e Measurements taken with no attenuation and units operating at full Level Measurement Location 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 me
37. Indoor unit capacity may not need to be e Ducted and four way cassette indoor units are the only models designed for direct increased because of outdoor air connection of an outside air duct e Fan and filter system is centralized to the e Ceiling space is required for ductwork main outdoor air unit Failure of outdoor air may impact indoor unit operation e In lieu of using the factory mounted return air thermistor a remote wall temperature sensor or zone controller may be required to provide an accurate conditioned space temperature reading Figure 24 Coupled Dedicated Outdoor Air CDOA LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 43 SdUIJapINgS uoljedijddy Four Way Ceiling Cassette System Engineering Manual BUILDING VENTILATION DESIGN GUIDE Method 5 Decoupled Dedicated Outdoor Air System DDOAS Provide a separate dedicated outdoor air system designed to filter condition and dehumidify ventilation air and deliver it directly to the conditioned space through a separate register or grille This approach requires a separate independent ventilation duct system not associated with the Duct Free Split system Note LG recommends using the DDOAS method in all installations Advantages Disadvantages Does not add additiona
38. LLL QTL LLL VILLA LLL LLL ir A amp WZ Daata Minimum 23 19 32 Minimum 39 3 8 Due to our policy of continuous product innovation some specifications may change without notification LG 52 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp REFRIGERANT PIPING DESIGN amp LAYOUT BEST PRACTICES Design Guideline Summary on page 54 Selecting Field Supplied Copper Tubing on page 55 Refrigerant Piping System Layout on page 58 Piping Insulation on page 62 Condensate Drain Piping on page 63 Ceiling Concealed Duct High Static System Engineering Manual REFRIGERANT PIPING DESIGN Design Guideline Summary Device Connection Limitations A single zone four way ceiling cassette system consists of one outdoor unit and one indoor unit One of the most critical elements of a single zone four way ceiling cassette system is the refrigerant piping The table below lists pipe length limits that must be followed in the design of a single zone four way ceiling cassette refrigerant pipe system Table 34 Single Zone Four Way Ceiling Cassette Refrigerant Piping System Limitations System Model Name LC187HV LC247HV LC367HV LC427HV Pipe Length Longest total equivalent piping length 164 feet 246 feet ELF Equivalent Length of Pipe Distance between fittings and indoor or outdoor units Elevation If outdoor unit
39. PECIFICATIONS Four Way Ceiling Cassette System General System LG single zone four way ceiling cassette system comprises of a sin gle frame outdoor unit connected to a single indoor unit with a single refrigerant circuit An LG single zone four way ceiling cassette is a DFS system that can operate in either cooling or heating mode The system is capable of changing mode within a maximum time of three 3 minutes to ensure indoor temperature can be properly main tained LG components are manufactured in a facility registered to ISO 9001 and ISO 14001 which is a set of standards applying to en vironmental protection set by the International organization for Stan dardization ISO The system components comply with Underwriters Laboratories UL 1995 Heating and Cooling Equipment Standard for Safety and bear the Electrical Testing Laboratories ETL label Wiring in these units are in accordance with the national Electrical Code NEC LG single zone four way ceiling cassette systems have published performance ratings certified by AHRI Air Conditioning Heating and Refrigeration Institute and are listed in the AHRI Stan dard 210 240 certified product directory Outdoor Unit The outdoor units have sound levels not exceeding 54 dB A tested in an anechoic chamber under ISO Standard 3745 Indoor Unit The indoor units have sound ratings no higher than 46 dB A as tested per ISO Standard 3745 Temperature Ranges Outdoor Unit Opera
40. W Power input KW includes compressor and fan s Nominal capacity as rated 0 ft above sea level and a 0 ft level difference between outdoor and indoor unit Corresponding refrigerant piping length is accordance with standard length of each outdoor unit LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Nominal heating capacity rating obtained with air entering the indoor unit at 70 F dry bulb DB and 60 F wet bulb WB and outdoor ambient conditions of 47 F dry bulb DB and 43 F wet bulb WB FOUR WAY CASSETTE ejeq JONpold Manual ineering Four Way Ceiling Cassette System Eng 36 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp APPLICATION GUIDELINES Equipment Selection Procedure on page 38 Building Ventilation Design Guide on page 40 Placement Considerations on page 45 Four Way Ceiling Cassette System Engineering Manual EQUIPMENT SELECTION PROCEDURE Cooling Heating Correction Factors For Four Way Ceiling Cassette systems calculate the equivalent length of the liquid line from the outdoor unit to the indoor unit
41. ad to refrigerant leaks gt BS ee S 1 Place a couple of drops of refrigerant oil on the opening rim A Flare Nut of the flare before assembling Take care not to add any a contaminants 2 Align the center of the refrigerant pipe and corresponding YK Undoor Unit connection and tighten the flare nut by hand Piping Fi 49 Flare C tion Side View 3 Following the guidelines as outlined in Table 42 for the amount of ee i aa a alias torque to use tighten the flare nut with a torque wrench until the wrench clicks 4 When flare is sufficiently tightened and the system has been 4 7 tested for refrigerant leaks wrap insulation around the Indoor Unit Piping Flare Nut Field Supplied connection Piping Vv When tightening the flare unit with a torque wrench ensure the Figure 50 Using the Torque Wrench direction for tightening follows the arrow on the wrench t Table 42 Torque Wrench Tightening Piping O D O B o AOA Wrench Field Supplied Piping D in 3 8 30 45 6 59 3 11 6 87 9 Indoor Unit Piping Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp DUCT HIGH STATIC 61 991 9eJg s g pue u s q Huidig jJueIBHIIaY Ceiling Concealed Duct High Static System Engineering Manual REFRIGERANT PIPING DESIGN Piping
42. ally where the expansion Loop or U bend should be Linear pipe expansion can be calculated using the following formula LE CxLx T 1T Xx12 LE Anticipated linear tubing expansion in C Constant For copper 9 2 x 10 in in F L Length of pipe ft T Refrigerant pipe temperature F L Ambient air temperature F 12 Inches to feet conversion 12 in ft rm G Selecting Field Supplied Copper Tubing Tube wall thickness should meet local code requirements and be approved for an operating pressure of 551 psi If local code does not specify wall thickness LG suggests using tube thickness per the table below When bending tubing use the largest radii possible to reduce the equivalent length of installed pipe also bending radii greater than ten 10 pipe diameters can minimize pressure drop Be sure no traps or sags are present when rolling out soft copper tubing coils Table 36 Piping Tube Thicknesses Diy 4 3s 2 58 3a Material Min Bend Radius in Min Wall Rigid Type K or L Soft ACR Acceptable Rigid Type K or L Only 1 From Table 37 find the row corresponding with the actual length of the straight pipe segment 2 Estimate the minimum and maximum temperature of the pipe In the column showing the minimum pipe temperature look up the anticipated expansion distance Do the same for the maximum pipe temperature 3 Calculate the difference in the
43. amp Terminate multiple power wires of Do not terminate two wires on Do not terminate different gauge the same gauge to both sides one side wires to a terminal block A WARNING If power wires are not properly terminated and or firmly attached there is a risk of fire electric shock and or physical injury or death Note Never apply line voltage power to the communications cable terminal block If contact is made the PCBs may be damaged Always include some allowance in the wiring length when terminating Provide some slack to facilitate removing the electrical panels while servicing soeds jedIUeYdIIIJ PUL SUOI JDBUUOY e911 99 9 Figure 62 General Power Communications System Schematic No te Secure the separate wires in the control box panel using zip ties e Secure wiring with accessory clamps so that it does not touch piping Use a conduit for the cable Outside the unit make sure the commu nications cable and the power wiring are Shielded separately otherwise the out door unit operation may be affected by electrical noise and will malfunction or fail Power Supply Circuit Breaker ESA INS Ni w s _ 4 SS LZ N NSS NSS NS SS Ground Wire Outdoor unit LG Due to our policy of continuous product innovation some specifications may change without notification i LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered
44. asured in dB A 3 e Tested in anechoic chamber per ISO Standard 3745 Table 4 Four Way Ceiling Cassette Outdoor Unit Sound Pressure Levels dB A sound Pressure Levels dB A rUUTBTHV Figure 7 Four Way Ceiling Cassette Outdoor Unit Sound Pressure Level Diagrams LUU187HV LUU247HV LUU36 7HV LUU427HV A Cooling 20uPa 20uPa Octave Band Sound Pressure Level 0dB Octave Band Sound Pressure Level 0dB Approximate Hearing Threshold oe ee DOR IRU ea ee hi 63 125 250 500 1000 2000 4000 8000 Octave Band Center Frequency Hz Octave Band Center Frequency Hz LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 15 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp e eq JONpold Four Way Ceiling Cassette System Engineering Manual ACOUSTIC DATA Indoor Units Figure 8 Indoor Unit Sound Pressure Level Measurement Location e 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 ee e Tested in anechoic chamber per ISO Standard 3745 Table 5 Four Way Ceiling Cassette Indoo
45. be exposed to direct strong winds e Where high frequency electrical noise electromagnetic waves will not affect operation Include space for drainage to ensure condensate flows properly out of the unit when it is in heating mode Avoid placing the outdoor unit in a low lying area where water could accumulate Note When deciding on a location to place the outdoor unit be sure to choose an area where run off from defrost mode will not accumulate and freeze on sidewalks or driveways To avoid the possibility of fire do not install the unit in an area where combustible gas may generate flow stagnate or leak Don t install the unit in a location where oil acidic solutions sprays or dust sulfur carbon other corrosive materials are present often used e Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it Snow and Ice Conditions In climates that experience snow buildup place the unit on a suitably high platform to ensure proper condenser airflow The raised support platform must be high enough to allow the unit to remain above possible snow drifts Mount the unit on a field provided snow stand at a minimum height that is equal to the average annual snowfall plus 20 inches Design the mounting base to prevent snow accumulation on the platform in front or back of the unit case If necessary provide a field fabricated hood to keep snow and ice and or drifting snow from ac c
46. ce the unit where air circulation will not be blocked e Place the unit where drainage can be obtained easily e Place the unit where noise prevention is taken into consideration Ensure there is sufficient strength to bear the load of the indoor unit Ensure there is sufficient maintenance space e Locate the indoor unit in a location that is level and where it can be easily connected to the outdoor unit A WARNING Don ts The unit should not be installed near a heat or steam source or where considerable amounts of oil iron powder or flour are used The unit should not be installed where sulfuric acid and flammable or corrosive gases are generated vented into or stored Avoid installing the unit near high frequency generators or near any equipment that generates an electromagnetic field minimum 3 1 3 feet away e Do not install the unit near a doorway The unit may be damaged may malfunction and or will not operate as designed if installed in any of the conditions listed Note 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 Installing in a High or Dropped Ceiling High or dropped ceilings often found in commercial buildings and offices may cause a wide temperature differentiation To countermeasure e Change the indoor unit mode selection to allow for higher ceilings see tab
47. d e Liquid line pipe temperature Target inverter compressor speed e Inverter compressor operation indicator e Actual outdoor fan speed light e Target outdoor unit fan speed e Four way reversing valve operation e Actual superheat Indicator light e Inverter compressor current value Pressure graph showing actual low pres Outdoor air temperature sure and actual high pressure levels Error code display Indoor unit capacity Aes d a ea Opein mode indicdiot Indoor unit operating mode ae A E Total number of connected indoor units for Indoor unit fan speed multi zone systems e Indoor unit room temperature Inverter shai Sainte discharge temperature Communication indicator lights Indoor unit inlet pipe temperature Outdoor coil pipe temperature e Unit error code Indoor unit outlet pipe temperature Additional information that can be gathered from the main screen Figure 19 MV Diagnostic Screen 1 Graph Graphic shows the following e Compressors showing actual speeds Temperature sensors e EEVs e Four way reversing valve DUs e Outdoor fans showing status and PUA aE A LAI IRI mae i Pr ee ee L e Low and high pressures speeds ee E a ordon ie ol Ma Ng N Le a a A T i f 1 t 2 Setting Converts metric values to imperial values 3 Making Data Recording of real time data to a separate file created to be stored on the user s computer 4 Loading Data Recorded data from a saved CSV file can be loa
48. ded to create an LGMV session 5 Electrical Data The lower half of main screen is changed to show the following Inverter compressor Power Hz Amps Inverter control board fan Hz ie Volts The software is available in a high version with all of the features listed above The low version has all features as the high version without Target High Pressure and Target Low Pressure values shown on main screen In lieu of connecting to the ODU user has the option to connect to IDU with the use of a USB to RS 485 connector kit When connected through IDU user will not be able to record data This software can be used to both commission new systems and troubleshoot existing systems LGMV data can be recorded to a CSV file and emailed to an LG representative to assist with diagnostic evaluations Recommended Minimum PC Configuration e CPU Pentium IV 1 6 GHz e Hard Disk 600 MB when operating e Operating System Windows NT 2000 XP Vista e Web Browser Internet Explorer 5 0 e Main Memory 256 MB 28 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp PERFORMANCE DATA Cooling Capacity Data on page 30 Heating Capacity Data on page 34 Manual ineering Four Way Ceiling Cassette System Eng PERFORMANCE DATA C
49. del No Outdoor Indoor Air Temp F DB F WB Nominal Capacity Air Temp 68 57 73 61 77164 80 67 86 72 90 75 Btu h FDB TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC Pl TC SHC PI 5 35 66 25 73 1 18 37 87 21 18 1 60 40 09 27 98 1 74 41 69 26 87 1 76 44 52 27 10 1 77 ABTS M ZD 1 76 10 35 61 25 92 1 22 37 82 27 38 1 65 40 03 28 18 1 79 41 63 27 07 1 81 44 45 27 30 1 82 46 67 27 81 1 81 15 35 56 26 11 1 25 37 77 217 58 1 69 39 97 28 39 1 83 41 57 27 26 1 86 44 39 27 49 1 87 46 60 28 01 1 86 20 35 51 26 29 1 28 ora 2N 1 74 39 92 28 59 1 88 41 51 27 46 1 91 44 33 27 69 1 92 46 53 28 21 1 91 25 35 45 26 48 1 32 37 66 27 97 1 78 39 86 28 79 1 93 41 45 27 65 1 96 44 26 27 89 1 97 46 46 28 41 1 96 30 35 40 26 66 1 35 37 60 28 17 1 83 39 80 28 99 1 98 41 39 27 85 2 01 44 20 28 08 2 01 46 40 28 61 2 01 35 35 35 26 85 1 38 37 55 28 36 1 87 39 74 29 19 2 03 41 33 28 04 2 06 44 13 28 27 2 06 A633 20 01 2 06 40 35 30 27 03 1 42 37 49 28 55 1 92 39 69 29 39 2 08 41 27 28 23 2 11 44 07 28 47 2 11 46 26 29 01 211 45 35 25 27 21 1 45 37 44 28 75 1 96 39 63 29 59 2 13 41 21 28 42 2 16 44 01 28 66 2 16 46 20 29 20 2 16 50 35 20 27 40 1 48 37 39 28 94 2 01 39 57 29 79 2 18 41 15 28 61 2 21 43 94 28 85 2 21 46 13 29 40 221 55 35 15 27 58 1 52 37 33 29 13 2 05 39 51 29 99 2 22 41 09 28 80 2 26 43 88 29 04 2 26 46 0
50. designer must consider pipe expansion and contraction to avoid pipe and fitting fatigue failures Refrigerant pipe along with the insulation jacket form a cohesive unit that expands and contracts together During system operation thermal heat trans fer occurs between the pipe and the surrounding insulation lf the pipe is mounted in free air space no natural restriction to movement is present if mounting clamps are properly spaced and installed When the refrigerant pipe is mounted underground in a utility duct stacked among other pipes natural restriction to linear movement is present In extreme cases the restrictive force of surface friction between insulating jackets could become so great that natural expansion ceases and the pipe is fixed in place In this situation opposing force caused by change in refrigerant fluid vapor temperature can lead to pipe fitting stress failure The refrigerant pipe support system must be engineered to allow free expansion to occur When a segment of pipe is mounted between two fixed points provisions must be provided to allow pipe expansion to naturally occur The most common method is the inclusion of expansion Loop or U bends See Figure 36 on page 56 Each segment of pipe has a natural fixed point where no movement occurs This fixed point is located at the center point of the segment assuming the entire pipe is insulated in a similar fashion The natural fixed point of the pipe segment is typic
51. e These values can increase due to ambient conditions during F a D L G Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 9 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Four Way Ceiling Cassette System Engineering Manual ELECTRICAL DATA Electrical Data Table 3 Electrical Data Voltage ore Compressor Condenser Fan Motor s Unit Model No Hertz Voltage Range Quantity Motor RLA Condenser Condenser Fan Min to Max Cooling Fan Quantity Motor FLA LUU367HV LUU427HV e Voltage tolerance is 10 MCA Minimum Circuit Ampacity Maximum allowable voltage unbalance is 2 Maximum Overcurrent Protection MOP is calculated as follows RLA Rated Load Amps Largest motor FLA x 2 25 Sum of other motor FLA rounded down to the nearest standard fuse size LUU187HV 208 230 187 253 8 0 10 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Figure 2 LUU187HV LUU247HV Outdoor Unit Dimensions t g 2 yuyun Lt ajoy Sauna edid 9 BIH 91989 VOEU PUF Seed UWpaeumg adig seg EJ aps ooy Bana edid d aaea aroy Smanos edia a
52. e 27 Note There will be temporary reduction in capacity when frost ice accumulates on the outside surface of the outdoor unit heat exchanger The level of capacity reduction depends on a number of factors for example outdoor temperature F DB relative humidity RH and the amount of frost present Check the Indoor and Outdoor Unit Selection s Compare the corrected cooling and heating capacities to the load calculations Is each capacity sufficient for the zone it serves For each indoor unit the corrected capacity must be at least equal to the total of the cooling design load plus ventilation load if applicable for the space s served by the indoor unit For each indoor unit the corrected capacity also must be at least equal to the total of the heating design load plus ventilation load if applicable for the space s and or thermal zones served by the indoor unit The outdoor unit selected should be large enough to offset the total cooling load for all spaces it serves account for ventilation air cooling load if the ventilation air has not been pretreated to room neutral conditions The outdoor unit should also be large enough to offset the total heating load for all spaces it serves lf the corrected heating capacity ratio exceeds 100 reselect the equipment or change the system design by moving some of the load to another system System Sizing Check Formulas 1 Outdoor Unit Rated Capacity 4 Piping Correction Fac
53. erates Apartment classroom office mall hospital etc 2 Air conditioned Special location 1 When the location is air conditioned but there is severe temperature humidity difference due to high ceilings e Church auditorium theater lobby etc 2 When the location is air conditioned but internal temperature humidity are high e Bathroom swimming pool locker room etc Due to our policy of continuous product innovation some specifications may change without notification 62 DUCT HIGH STATIC LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG REFRIGERANT PIPING DESIGN Piping Insulation Condensate Drain Piping Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene EPDM Insulation Wall Thickness Requirements continued 3 Non air conditioned Typical location When the piping passes through an indoor area where the indoor unit does not operate Hallway or a dormitory or school etc 4 Non air conditioned Special location If conditions 1 and 2 below are present 1 When the piping passes through an indoor area where the indoor unit does not operate 2 When the humidity is high and there is no air flow in the location where the piping is installed e The thickness of the above insulation material is based on heat conductivity of 0 61 Btu in h ft2 F Condensate Drain Piping Condensate drain piping should be constructed out of ma
54. etpoint Also provides subfunction control Included with the four way ceiling cassette indoor units Allows remote temperature measurement for four way ceiling cassette ceiling concealed duct indoor units a S 2 W Table 10 Summary Data Zone Controller Communication Cables ae M tht na Wired Remote Group Control P7CWRCG3 39 Required when grouping multiple indoor units with a Cable Assembly single zone controller Increases the distance between a remote controller and an indoor unit Wired Remote Group Control a 7oypc4 Extension Cable Before specifying or placing an order refer to the V Net Network Solutions Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these devices For information on controller capabilities refer to the Controls and Options Table on page 27 24 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ACCESSORIES Specialty Application Devices Table 11 Summary Data Specialty Application Devices Specialty Application Connects sa Binary Signals aa M A E ae Enables the indoor unit to be controlled and monitored by Dry Contact Unit Indoor ON OFF Mode Controller third party controls using PQDSBC Unit L
55. frigerant Pipe and Cable s in a Utility Conduit Vapor Line Insulation Material Liquid Line Pipe Sleeve F S Insulation Material Min 18 Gauge Communications Cable Table 41 Heat Pump Unit Refrigerant Pipe Connections Flared System Model No Liquid aT aa Vapor cae LC187HV LC247HV Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp DUCT HIGH STATIC 59 991 9eJg s g pue u s q Huidig jJueIBHIIaY REFRIGERANT PIPING DESIGN Refrigerant Piping System Layout Outdoor Unit Refrigerant Piping Connections Figure 44 Removing the Refrigerant Piping Connection Cover Figure 45 LUU187HV LUU247HV Refrigerant Piping Connections LUU187HV LUU247HV gt O MaE N Outd PNN Connection cover utdoor unit 5 Liquid side piping WN Smaller diameter rs A ZS AAS NN an V E a o Teee Torque wrench Gas side piping Bigger diameter Piping Connection for a Single Zone System 1 Remove the connection cover from the unit by loosening the screws 2 Align the center of the refrigerant pipe and corresponding con nection and tighten the flare nut by hand Tighten the flare nut with a torque wrench until t
56. gineering Manual REFRIGERANT PIPING DESIGN Condensate Drain Piping Figure 54 Condensate Drain Plping Trap Models with drain pump Models without drain pump 11 13 16 inches or less Metal clamp Flexible drain hose Max Thermal insulation drain pipe area 31 1 2 inches Flexible hose Drain pump Common drain pipe Drain pan Thermal insulation bend area Polyethylene insulation 10t PVC drain pipe Condensate Drain Piping Insulation The inside temperature of the drain piping can rise to about 50 F When high temperature and humidity air touch the outside surface of the drain pipe condensation may form To prevent condensation from forming install polyethylene insulation 1 4 to 7 16 inches thick Drain piping must be properly insulated to prevent damage to the indoor unit and the ceiling Figure 53 Condensate Drain Piping Should Be Figure 55 Properly Insulated Condensate Drain Piping Properly Clamped at the Connections i Insulation Insulation Insulation that fits Clamp connection notregureg PAUE Figure 56 Condensate Drain Piping Should Not Include Sharp Bends Figure 57 Do Not Reverse the Figure 58 Improperly Installed Slope for the Drain Connection Insulation Too Loose Reverse slope Insulation that does not fit too loose Drain Piping Leak Test Test the condensate drain piping system for leaks 24 hours after installation is complete Use only water to test the drain piping Due to o
57. gy than those in conventional air condi tioners The Inverter compressor ramps up or down to match the required room capacity and maintain the comfort level When the selected temperature is reached the inverter compressor operates at low speed to maintain that comfort level thereby using less energy Quality Commitment LG is committed to the success of DFS projects We provide tech nical support during installation and commissioning LG offers a variety of classes designed for installers and servicer providers on DFS installation Classes are conducted at LG s training centers and in field locations at various times throughout the year and upon special request UNIT NOMENCLATURE L A N 090 H SV 2 L LG a Frame Type A Art Cool S Standard C Four Way Ceiling Cassette D Ceiling Concealed Duct Low Static H Ceiling Concealed Duct High Static V Vertical Horizontal Air Handling N Indoor Unit U Outdoor Unit No N or U System Nominal Capacity Nominal cooling capacity in Btu h 09 9 000 30 30 000 12 12 000 36 36 000 18 18 000 42 42 000 24 24 000 54 54 000 System Type H Heat Pump Style SV High Efficiency Inverter VP Gallery YV Premier EV Mega V Standard Inverter T Thermostat Compatible Generation LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliff
58. hat is stranded and shielded with the wires separately insulated Power Wiring Communications Cable Specifications Dp From Four Way Ceiling Cassette Outdoor Unit to Indoor Unit 4C x 18 AWG Np e Maximum Allowable Temperature 194 F Indoor Unit s to Wired Controller Three core cable Due to our policy of continuous product innovation some specifications may change without notification 66 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG ELECTRICAL CONNECTIONS Wiring Connections Connecting the Power Wiring Communications Cable Best practice dictates using ring or spade terminals to terminate power wiring at the power Figure 60 Close up of a Typical Ring Terminal terminal block If ring terminals or spade clips are not available then Power Wiring e Do not terminate different gauge wires to the power terminal block Slack in the wiring may Ring Terminal generate heat we e When terminating wires of the same thickness follow the instructions demonstrated in the 0 figures below e Firmly attach the wire secure in a way to prevent external forces from being imparted on the terminal block e Use an appropriately sized screwdriver for tightening the terminals Do not overtighten the connections overtightening may damage the terminals Figure 61 Proper and Improper Power Wiring Connections Copper Wire 0
59. he wrench clicks See page 61 for guidelines for the torque amount to use f j Wy R ASA a f N AR IMEN YY Jy f LL LZ SLE Ss PSs fH S s Y Lijjz N Uf Y A ZB L772 NSE AS Yigg LA 4 a KK Q A a ae aen LF i i i WSS LSS He A LL Wee Lp Aste x SS Ga wWN NNN MAA N s Jaa SU mii SA Hi Liz y Soa E ZZ YY A Ly SLL H A YY Uy GA SZ a SS ss A NNN Ss Ss WS Wi WEA HEL f KX Ly Aa ig SEF GAZ ZEA ogg e r N y Se _ FF Ez U4 i Refer to the Installation Manual for indoor unit refrigerant piping connections Ceiling Concealed Duct High Static System Eng Ze A Piping can be installed rs Ae O By P in one of four different g C w 6 tery layouts S lt SNe FAN Due to our policy of continuous product innovation some specifications may change without notification 60 DUCT HIGH STATIC LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp REFRIGERANT PIPING DESIGN Refrigerant Piping System Layout Brazing Practices Note Keep the piping system free of contaminants and debris
60. hvac com Duct Free Split DFS Systems LG HVAC systems offer a range of solutions that are cost efficient quiet and attractive Duct Free Split DFS systems are split into indoor and outdoor units and provide a smart alternative to both central HVAC and window mounted air conditioners These inverter heat pump systems are available in a variety of configurations to suit different cooling and heating situations Installation by a qualified HVAC contractor is safe and easy little to no duct work or sheet metal is required Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 4 INTRODUCTION LG Lifes Good Inverter Technology LG DFS air source systems offer zoning without the need for zone damper systems The advanced controls of the four way ceiling cassette system provide exceptional temperature and air flow control and can rapidly adapt system operating parameters to the ever changing building load Single zone DFS systems are easy to design install and maintain The modular design allows occupants to control their environmental condition providing individualized control of the set point temperature and allowing occupants to condi tion only the occupied zones Inverter variable speed compressors are also measurably quieter and consume less ener
61. ics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG EQUIPMENT SELECTION PROCEDURE Defrost Correction Factor for Heating Operation The outdoor unit heating capacity may need to be adjusted for frost accumulation on air cooled systems If design day conditions are below the dewpoint of the surrounding air frost may not be a problem and no correction factor is needed In certain weather conditions however frost may form and accumulate on the air cooled outdoor unit coil and impact the coils ability to transfer heat If significant frost accumulates on the outdoor unit coil a defrost algorithm will start automatically The timing between defrost periods is determined by the system s ability to achieve a target head pressure value Capacity and AHRI ratings tables do not factor in capacity reduction when frost has accumulated on the condenser coil nor during defrost operation Integrated heating capacity values can be obtained using the formula Table 27 Outdoor Unit Frost Accumulation Factor Heating A BxC Where _Deratefactor 0 98 0 95 0 93 0 86 0 93 0 96 1 0 At 85 outdoor air relative humidity A Integrated Heating Capacity The frost accumulation factor does not account for effects of snow accumulation restricting airflow B Value found in the Capacity Table through the outdoor unit coil C Correction Factor for Frost Accumulation Factor from Tabl
62. ield adjusted fixed position The four vanes can be individually adjusted from the wired remote controller to customize the airflow pattern for the con ditioned space A setting in the cooling and heating modes can cycle the vanes up and down for uniform random air distribution A required architectural grille is sold as a separate required acces sory The four way grille is off white acrylonitrile butadiene styrene ABS polymeric resin with a tapered trim edge R jia Refrigerant System System is designed for use with R410A refrigerant and consists of a single refrigeration circuit The refrigeration circuit is pressure tested at the factory and shipped with a holding charge of helium gas The outdoor unit is provided with factory installed components including a refrigerant strainer oil separator accumulator four way reversing valve electronic expansion valve EEV high and low side charging ports service valves and interconnecting piping All refrigerant lines from the outdoor unit to the indoor unit are field installed and must be insulated separately Compressors The outdoor unit is equipped with one hermetically sealed digitally controlled inverter driven twin rotary compressor to modulate capac ity variable from 20 to 100 Hz modulate in 1 Hz increments Teflon coated bearings overcurrent protection and vibration isolation are integrated with the compressor LG MECHANICAL SPECIFICATIONS Coil
63. igerant Flow Diagram Outdoor Ambient Air Refrigerant Flow Condenser Out Temperature Temperature Thermistor Thermistor Cd lt 4 Cooling lt Heating nesne EEE aly ee PTET O3 8 Flare Connection aaa aaa LLL LLL Strainer a Strainer i HEE PEPER _ 36k 42k model only Liquid Side PK ise VS eee i svc ee C CEES ei Iping Electronic Expansion Valve High Pressure A gt q Sensor gt eae Vapor Side gt lt ie Piping SVC by Away O5 8 Valve Flare Connection Discharge Temperature i Thermistor Accumulator i Suction Fusible Temperature Plug Thermistor ie l Inverter i Compressor Table 6 Four Way Ceiling Concealed Outdoor Unit Thermistor Details ae PCB Connector Description Based on Cooling Mode UU247HV LUU367HV Suction Temperature Thermistor CN TH3 CN TH3 Discharge Temperature Thermistor Condenser Outlet Temperature Thermistor CN TH2 CN TH2 Outdoor Ambient Air Temperature Thermistor Condenser Inlet Temperature Thermistor CN TH4 CN TH4 CN TH1 P SENSOR H LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 19 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp e eq JONpold INDOOR UNIT REFRIGERANT FLOW DIAGRAM Cooling Heating Mode LCN
64. inal Block Location 4 Be sure to ground the unit by following local codes fl ime 5 Allow for enough length add several inches for each wiring os 6 Secure the cable with the cord clamp ge Block 7 Secure conduit tubes with lock nuts ie 8 Reattach the control cover with screws ce Me Figure 64 LUU187 247HV Outdoor Unit Terminal Block Location ie ate Outdoor Unit Electrical Connection SI Se aa Clamp Terminal block et On Over 0 2 Conduit panel Power supply cord Insulation Connecting AG When connecting the power wiring cable X 0 G0 communication cables make sure im the rubber bushing is properly inserted N 5 in the access holes after removing the insulation Control cover Connection might look slightly different depending on Single Zone ODU being used Due to our policy of continuous product innovation some specifications may change without notification 68 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG ELECTRICAL CONNECTIONS Note Always use a circuit breaker or time delay fuse when connecting electrical wiring to the unit AWARNING The circuit diagram is subject to change without notice e Connect the wiring following the wiring diagram and the color codes Firmly attach the wiring so the wires cannot be pulled out easily e Comply with local codes while running wire
65. ion LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Motor 2 BK BLACK BL BLUE BR BROWN Main Terminal block Fuse 250V 35A Fuse 250V 5A Fuse 250V 3 15A 4way valve Pressure Sensor Thermistor Pipe_Middle Thermistor Discharge Thermistor Suction Thermistor Pipe _Out Thermistor Air Electronic Expansion Valve Fan motor up Fan motor down YL YELLOW RD RED WH WHITE GY GRAY GN YL GREEN YELLOW Wiring of field Connecting wire LG INDOOR UNIT WIRING DIAGRAM LCN187 247 367 427HV Figure 18 Four Way Ceiling Cassette LCN187 247 367 427 HV Indoor Unit Wiring Diagram DISPLAY pos opge GN YL 00000000 EEPROM ELLE GaGRERE O OO OOOO000O0 CN FLOAT CN_DISPLAY CN OPTION _ ea cn roomp THERMISTOR O IN PIPE en prrerour i G eor ZHO9 ADEC 800 Ol LINN HOOGLNO OL MAIN PCB CN VANE2 CN VANE1 CABINET CONTROL BOX IP999999999 0000000000 pets Eo T TTT i IM GND l l i BEE AIR 0000 CLEANER DRY l C SET CONTACT eee e EATA Ne A NAS M E O EEE ACCESSORY RD RED wu whe Bk BLACK or ORANGE yi_fyewtow eL sive BR _ BROWN LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE LG Electronics U S A Inc E
66. it breaker should be resistant to electromagnetic currents To avoid the possibility of explosion fire etc do not connect the ground wiring to gas or sewage pipes lightening rods and telephone wires Use clamps to prevent the wires from touching the piping e Use ring terminals to attach the wiring Verify that all power wiring and communications cable terminals are securely attached ensure enough slack is included in the wiring and cables to avoid damaging the connections Use a conduit to protect the power wiring Do not install a phase advancing capacitor the outdoor unit may overheat Verify all wiring cable connections are appropriately tightened Power Wiring and Communication Cable Installation For Duct Free Split systems power is wired to the outdoor unit only The outdoor unit will supply power to the indoor units through the power wiring communications cable Electrical Specifications Figure 59 Power Wiring and Communica 1 Four Way Ceiling Cassette Outdoor Unit 12 208 230V 60Hz tions Cable from the Outdoor Unit to the Indoor Unit 2 Four Way Ceiling Cassette Indoor Unit 10 208 230V 60Hz from the outdoor unit Indoor units draw minimal power 3 Power supply wire type and size should be selected based on NEC and local codes Maximum allowable voltage fluctuation 10 of the nameplate rated value 4 Properly ground the outdoor unit per NEC and or local code 5 Use only copper wiring t
67. l heating or cooling loads to indoor units e Ceiling space is required to accommodate ductwork between the e May be used with the full lineup of Duct Free Split system indoor outdoor air unit and ceiling diffusers units Failure of outdoor unit does not impact operation of indoor unit the resulting untreated air will be readily noticed by the occupants The outdoor air unit may supply neutral air to the occupant space even when the Duct Free Split system indoor unit fan changes speed or cycles on and off DDOAS controls do not have to be interlocked with the Duct Free Split system In lieu of installing localized smaller outside air treatment equipment throughout the building this method centralizes the ventilation air source making service and filter changes easier and less disruptive for the building occupants Third party demand control ventilation controls are more readily accommodated Indoor unit operation and performance will not be affected by the condition of outdoor air Figure 25 Decoupled Dedicated Outdoor Air System DDOAS Indoor Unit Ceiling Diffuser Due to our policy of continuous product innovation some specifications may change without notification LG 44 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp z PLACEMENT CONSIDERATIONS Indoor Unit Selecting the Best Location Do s e Pla
68. le e Install an air circulator e Set the air discharge outlet so that heated air flows in a downward direction Use a dual door system to protect the building gate or exit Table 28 Indoor Unit High Ceiling Mode Selection Options LCN187HV Table 29 Indoor Unit High Ceiling Mode Selection Options LCN367 LCN247HV LCN427HV Ceiling Height Mode Selection Ceiling Height Mode Selection S 1 2 feet Low Ceiling lt 8 7 8 feet Low Ceiling 7 1 2 feet to 8 7 8 feet Standard 8 7 8 feet to 10 1 2 feet Standard 8 7 8 feet to 10 3 16 feet High Ceiling 10 1 2 feet to 11 13 16 feet High Ceiling 10 3 16 feet to 11 13 16 feet Very High Ceiling 11 13 16 feet to 13 13 16 feet Very High Ceiling 3 LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 45 SOUIJapINS uoljedijddy Four Way Ceiling Cassette System Engineering Manual PLACEMENT CONSIDERATIONS Indoor Unit Installing in an Area Exposed to Unconditioned Air In some installation applications areas floors walls in some rooms may be exposed to unconditioned air room may be above or next to an unheated garage or storeroom To countermeasure e Verify that carpet is or will be installed carpet may increase the temperature by three degrees Add insulation between the floor joists
69. nch Ensure that the space at the back of the outdoor unit is a minimum of 11 13 16 inches and If the outdoor unit discharge side faces a wall include a minimum of 19 11 16 inches include a minimum of 23 5 8 inches at the right side of the unit for service between the outdoor unit and the wall Install the outdoor unit so that the discharge port is set at a right angle to the wind direction Clearance Requirements when Different Obstacles are Present Unit Inch Obstacle on the suction side only Obstacles on the suction side and on both left and right sides Ay Due to our policy of continuous product innovation some specifications may change without notification LG 50 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp PLACEMENT CONSIDERATIONS Outdoor Unit Clearance Requirements when Different Obstacles are Present Unit Inch continued Obstacles above and on the air intake side Obstacles above on the air intake side and on both left and right sides Minimum 39 3 8 Minimum 39 3 8 M y l m Ss IN gt R 2g D wo Obstacle just on the Obstacles above and on the air discharge side air discharge side o Minimum 39 3 8 Where there are obstacles on both suction Where there are obstacles above and on both and discharge sides discharge side obstacle suction and discharge side
70. nd allowing occupants to condition only the occupied zones Benefits of Four Way Ceiling Cassette Systems e Inverter technology e Available in 18 000 24 000 36 000 42 000 Btu h capacities All season use heat pump models for both cooling and heat ing capabilities Operating ranges for outdoor units of 5 F DB to 118 F for cooling 0 F to 64 F WB for heating Operating ranges for indoor units of 64 F to 86 F for cooling 60 F to 86 F for heating Quiet operation inside and outside Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 6 INTRODUCTION Inverter variable speed compressors are also measurably quieter and consume less energy than those in conventional air condi tioners The Inverter compressor ramps up or down to match the required room capacity and maintain the comfort level When the selected temperature is reached the inverter compressor operates at low speed to maintain that comfort level thereby using less energy Adaptable and Flexible Four way ceiling cassette DFS systems allow cooling or heating for a single room without the need for extensive remodeling Long refrigerant piping lengths allow for extra design flexibility in indoor unit installation These units may be used for a number of residential or commercial e
71. nfiguration approved by a local professional engineer e The overall tie down configuration must be approved by a local professional engineer Always refer to local code when using a wind restraint system Lightening Protection To protect the outdoor unit from lightning it should be placed within the specified lightning safety zone Table 30 Safety Zone Specifications Building Height feet 66 98 148 197 Protection Angle Power cable and communication cable should be installed five 5 feet away from lightning rod A high resistance ground system should be included to protect against induced lightning or indirect strike General Mounting Securely attach the outdoor unit to a condenser pad base rails or other mounting platform that is securely anchored to the ground or building structure The underlying structure or foundation must be designed to support the weight of the unit and avoid placing the outdoor unit in a low lying area where water may accumulate Attaching the Outdoor Unit to the Bracket When installing the outdoor unit on a wall or roof top anchor the mounting base securely using nails or wire with regard to wind and earthquake or vibration Refer to installation manual and follow the applicable local code for clearance mounting anchor and vibration attenuation requirements Note All referenced materials are to be field supplied mages are not to scale Due to ou
72. ng the indoor unit at 70 F dry bulb DB and 60 F wet bulb WB and outdoor ambient conditions of 47 F dry bulb DB and 43 F wet bulb WB Model No Outdoor Air Temp Indoor Air Temp F DB Nominal Capacity pg F WB 61 64 68 70 72 75 Btu h TC PI TC PI TC P ne P ne P IC P 0 0 4 15 86 1 74 14 97 1 81 14 92 1 83 14 59 1 85 14 32 1 86 13 2 1 93 5 4 5 17 72 1 80 16 91 1 86 16 65 1 90 16 30 1 92 16 01 1 94 15 37 2 00 10 9 18 97 1 85 18 21 1 91 17 80 1 96 17 44 1 98 17 15 2 01 16 48 2 07 17 15 20 35 1 91 19 64 1 97 19 07 2 04 18 70 2 07 18 40 2 10 17 69 2 16 20 19 21 18 1 96 20 50 2 02 19 84 2 09 19 46 2 13 19 16 2 16 18 43 2 22 25 23 22 57 2 04 21 90 2 10 21 14 2 18 20 74 2 22 20 42 2 26 19 65 2 32 30 28 23 96 2 13 23 22 2 20 22 42 2 21 22 01 202 21 68 2 36 20 88 2 42 35 32 25 35 2 22 24 54 2 30 23 71 2 36 23 28 2 41 22 94 2 46 22 11 2 52 LC247HV 24 000 40 36 26 64 2 28 25 89 2 36 25 07 2 43 24 63 2 48 24 29 2 52 23 41 2 59 45 41 28 26 2 37 27 58 2 44 26 77 2 52 26 32 2 57 25 97 2 60 25 02 2 68 47 43 28 90 2 40 28 26 2 48 27 45 2 56 27 00 2 60 26 64 2 64 25 67 2 11 50 46 28 99 2 38 28 40 2 45 27 10 2 52 27 30 2 56 26 98 2 59 26 07 2 66 55 51 29 13 2 36 28 65 2 42 28 12 2 47 27 19 2 50 27 54 2 52 26 72 2 58 60 56 29 27 2 33 28 89 2 38 28 53 2 42 28 29 2 44 28 09 2 45 27 38 2 49 63 59 29 35 2 32 29 03 2 35 28 78 2 39 28 59 2 40 28 43 2 4
73. nglewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp CONTROL YL f CN REMO semi aN NER J 4py REMOTE 23 e eq JONpold Manual ineering Four Way Ceiling Cassette System Eng ACCESSORIES Zone Controllers Table 9 Summary Data Zone Controllers ie Max Wire er a i PQRCVCLO Black Simpie enone Allows control of indoor unit ON OFF operation mode fan aa speed and temperature setpoint for up to 16 indoor units PQRCVCLOQW White PQRCHCAQ0 Black Da Aa Allows control of indoor unit ON OFF fan speed and nee temperature setpoint for up to 16 indoor units PQRCHCA0QW White LG 7 Day Programmable PREMTB10U White Thermostat Wireless Handheld PQWRHDFO Controller Wall Mounted ROTO PQRSTAO Ivory Temperature Sensor Before specifying or placing an order refer to the V Net Network Solutions Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these devices For information on controller capabilities refer to the Controls and Options Table on page 27 OD F gt O F gt Allows control of indoor unit ON OFF operation mode occupied unoccupied temperature setpoints fan speed and airflow direction for up to 16 indoor units Programmable schedule with five events per day Allows control of indoor unit ON OFF operation mode fan speed and temperature s
74. ntrol the volume of the ventilation air manually In some locations it may be difficult to control humidity levels when e Useful for historic buildings that have no ceiling space available for windows are open outdoor air ductwork Thermal comfort levels may be substandard when windows are e May be used with the full lineup of Duct Free Split system indoor open units e Indoor units may have to be oversized to account for the added heating and cooling loads when windows are open e Provides outdoor air to perimeter spaces only Additional mechan ical ventilation system may be required to satisfy requirements for interior spaces e Outdoor air loads may be difficult to calculate since the quantity of outdoor air is not regulated e May affect indoor unit proper operation when open Figure 21 Natural Ventilation Non Ducted Unconditioned Outdoor Air gt Due to our policy of continuous product innovation some specifications may change without notification 40 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG 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 ho
75. nuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Heating Tft Heating FOUR WAY CASSETTE 17 e eq JONpold Manual ineering Four Way Ceiling Cassette System Eng AIR VELOCITY AND TEMPERATURE DISTRIBUTION Figure 12 LCN367HV Air Velocity and Temperature Distribution Charts Cooling Heating Discharge angle 40 Discharge angle 50 Air velocity ft s Air velocity ft s Oft 16ft 13ft 10ft 7ft 13ft 16ft 16ft 13ft 10ft 7ft 10ft 13f 16ft Temperature F Temperature F 16ft 13ft 10ft 7ft 3ft oft 7ft 10ft 13ft 16ft 16ft 13ft 10ft ft 10ft 13ft 16ft Figure 13 LCN427HV Air Velocity and Temperature Distribution Charts Cooling Heating Discharge angle 40 Discharge angle 50 Air velocity ft s Air velocity ft s Oft 16ft 13ft 10ft 7ft 13ft 16ft 13ft 10ft 10ft 13ft 16ft Temperature F Temperature F 16ft 13ft 10ft 7ft 10ft 13ft 16ft 13ft 10ft 7ft 7ft 10f 13ft 16ft 18 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp OUTDOOR UNIT REFRIGERANT FLOW DIAGRAM LCN18 7 247 367 427HV Cooling Heating Mode Figure 14 LUU187 247 367 427HV Refr
76. nuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp DUCT HIGH STATIC 55 991 9eJg S9q pue u s q Huidig jJueIBHIIaY REFRIGERANT PIPING DESIGN selecting Field Supplied Copper Tubing Table 37 Linear Thermal Expansion of Copper Tubing in Inches 0 F Expansion of Carbon Copper and Stainless Steel Pipe The Engineers Toolbox www engineeringtoolbox com Small Tubing U bend lt 3 4 in Nominal Tube Size OD inches lt 00 O A Da N D leek N lt 2 N N A 2 N S H N N N co N Loop Large Tubing U bend gt 3 4 in eC dp ab eS O e Lu S ae dp Q x lt LLI Sool CO ab O ab 2 52 Ss lt Table 38 Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets Figure 36 Coiled Expansion Loops and Offsets Pipe length baseline temperature jenuew buiwaeulbuy wejsAs 913e 3 YIP JONG payeadu0y Huljia4y Centerline Length of Pipe R ls Centerline Minimum Radius inches LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 56 DUCT HIGH ST
77. nvironments such as Older homes e New home construction e Office buildings e Restaurants e Hospitals Medical facilities e Schools e Nursing homes e Retail establishments e Houses of worship l e ee l aren rr Figure 1 Four Way Ceiling Cassette System LG PRODUCT DATA Product Features and Benefits on page 8 General Data on page 9 Electrical Data on page 10 Dimensions on page 11 Acoustic Data on page 15 Air Velocity and Temperature Distribution on page 17 Refrigerant Flow Diagrams on page 19 Wiring Diagrams on page 21 Accessories on page 24 Four Way Ceiling Cassette System Engineering Manual PRODUCT FEATURES AND BENEFITS Four Way Ceiling Cassette Systems Single zone four way ceiling cassette sys tems are equipped with inverter components that offer superior load matching and long piping installation The product works for optimizing power consumption in residential and small office buildings Using a four way ceiling cassette indoor unit with custom tem perature controls allow for precise tempera ture settings in each zone of the building Four way ceiling cassette indoor units allow flexibility in interior design and complement any decor Lower Sound Levels When outdoor units operate fully loaded they have one of the quietest sound levels in the industry operating as low as 48 dB A To promote a quiet comfortable
78. o p JS Description Provides for scheduling auto changeover setback remote controller lock p setpoint range limit run time limit web access me email alarm notification sereucen form Pacsnateos 12 ao software device interlocking PDI integration and AC Manager Plus integration advanced functionality in addition to basic unit control and monitoring 12 VDC Provides for scheduling in AC Ez PQCSZ250S0 32 Outdoor addition to basic indoor unit control and monitoring Provides for scheduling Advanced Control 64 128 remote controller lock setpoint Platform ACP PQCPC22N1 range limit web access peak Standard Premium demand control PDI integration and AC Manager Advanced Control 64 128 Plus integration advanced Platform ACP PQCPC22A1 with PDI functionality in addition to Premium Premium basic unit control and monitoring Before specifying or placing an order refer to the V Net Network Solutions Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these devices For information on controller capabilities refer to the Controls and Options Table on page 27 Table 13 Summary Data Integration Solutions Connect to Outdoor Unit Through the PI 485 Board accessory sold separately Central Controller Name Model No p l Description 64 128 Allow integration of LG BACnet Gateway PQANFB17C1 with PDI 4 2 2 equipment f
79. ock Power Save Run binary inputs and outputs for Setback Status Error Status ON OFF Thermo ON Enables the indoor unit to be Dry Contact Unit PQDSBNGCM1 OFF Mode Fan Speed controlled and monitored by a for Thermostat Run Status Error Status third party thermostat or controller Solent Ondo Control integration to LG V net carat _ PMNFP14A0 A1 ri controls AC Smart Premium ACP BACnet LonWorks etc One 25A DPST normally open a relay Used with central eae pupal PQNFPOOTO mn ON OFF controller to control third party DO Kit BUS device manually or by schedule Before specifying or placing an order refer to the V Net Network Solutions Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these devices For information on controller capabilities refer to the Controls and Options Table on page 27 Cy LG Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 25 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp e eq JONpold Four Way Ceiling Cassette System Engineering Manual ACCESSORIES Central Controllers Integration Solutions Table 12 Summary Data Central Controllers Connect to the Outdoor Unit Through the PI 485 Boal accessory sold separately Central Controller Name Model N
80. od Supply fans can also be used to push the outdoor air into the space and building positive pressure will vent the exhaust air through louvers or roof mounted exhaust hoods Outdoor air is neither cooled nor heated before entering the building Note This may result in loss of building pressurization control increasing infiltration loads with adverse effects Advantages Disadvantages Outdoor air may be manually controlled by the occupant or auto e In some locations of the country it may be difficult to control matic controls may be installed to open close outdoor air dampers humidity levels or to turn on off ventilation fans e Indoor units may have to be oversized to account for the added e Useful for large open spaces like warehouses garages and heating cooling loads when louvers hoods are open workshops Hot cold and or humid areas may be present if the outdoor air is e Outdoor air volume is a known quantity Air loads may be easier to not evenly distributed to the different spaces calculate since fans will regulate the amount of outdoor air May be used with the full lineup of Duct Free Split system indoor units Figure 22 Unconditioned Outdoor Air Non Ducted Fan Assisted Ventilation OA Wall Louver LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a regi
81. ode Timer on off Weekly schedule Two thermistor control 7 Day programmable controller Simple wired remote controller Wireless LCD remote control Auto 4 5 4 oe Operation L Controllers Dry contact 0 Dry contact temperature setting O Central control LGAP 1Primary washable filters y Standard feature 7Requires wired zone controller o Unit option Table 15 Four Way Ceiling Cassette Indoor Unit Accessories Overview Model No Description PT UMC1 Ceiling Grille PTPKMO Plasma Kit PTVK410 PTVK420 Ventilation Kit Flange Must comply with applicable codes for fire isolation dampers PTVK430 Flange PTEGMO Auto Elevation Kit if L G Due to our policy of continuous product innovation some specifications may change without notification FOUR WAY CASSETTE 27 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp e eq JONpold Four Way Ceiling Cassette System Engineering Manual ACCESSORIES LGMV Diagnostic Software LG Monitoring View LGMV Diagnostic Software and Cable LGMV software allows the service technician or commissioning agent to connect a comput er USB port to the outdoor unit main printed circuit board PCB using an accessory cable without the need for a separate interface device The main screen for LGMV allows the user to view the following real time data on one screen e Actual inverter compressor spee
82. on NC New Construction LEED Related ee ES a OS O o oaoa em O Pece C oest DowePae Singe Tirow awit Poi Power Disrbuton nccator O ew eoceno vae ao OOOO Poer ctr _EwuvatentuengtinFeet ROO __Prerequste LEEDReaieg O O _ rotons indesign LEED Relates ___WRF___ ___varateReigrant Flow O O so mensa OOOO Thousands BTUs per hour Four Way Ceiling Cassette System Engineering Manual Due to our policy of continuous product innovation some specifications may change without notification L G 72 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ano CERTIFIED Aaw ahridiractiaory org Unitary Small HP AHAI Standard 210 240 Ara ae ae ey ee ACCREDITED LG ELECTRONICS INC Life s Good LG Electronics LG Electronics Commercial Products Support Commercial Air Conditioning Division 1 888 865 3026 USA 11405 Old Roswell Road Follow the prompts for commercial A C products Alpharetta Georgia 30009 www lghvac com www lg dfs com DFS EM AC 001 US_014D02
83. on the indoor unit when connecting the field supplied drain piping e Drain piping specifications Indoor Unit Drain Connection 1 1 4 inch outside diameter Field Supplied Drain Piping Polyvinyl chloride piping with 1 inch inside diameter and pipe fittings 1 50 1 100 i lt 31 1 2 inches Due to our policy of continuous product innovation some specifications may change without notification i LG 46 FOUR WAY CASSETTE LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp PLACEMENT CONSIDERATIONS Outdoor Unit Selecting the Best Location for the Outdoor Unit Select a location for installing the outdoor unit that will meet the following general conditions A location strong enough to bear the weight of the outdoor unit A location that allows for optimum air flow and is easily accessible for inspection maintenance and service e Where piping between the outdoor unit and indoor unit are within allowable limits e 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 e Where operating sound from the unit will not disturb inhabitants of surrounding buildings e Where the unit will not
84. ons may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 49 s uij pi ing uoiesijddy Manual ineering Four Way Ceiling Cassette System Eng PLACEMENT CONSIDERATIONS Outdoor Unit Outdoor Unit Service Access and Allowable Clearances Appropriate airflow through the outdoor unit coil is critical for proper unit operation Include enough space for airflow and for service access If installing multiple outdoor units avoid placing the units where the discharge of one unit will blow into the inlet side of an adjacent unit e No obstacles to air circulation around the unit keep proper distances from ceilings fences floor walls etc Install a fence to prevent pests from damaging the unit or unauthorized individuals from accessing it If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that the discharge air of the outdoor unit isn t restricted When installing the outdoor unit consider service inlet and outlet and minimum allowable space requirements as illustrated in the following diagrams Minimum 11 13 16 Minimum 11 13 16 Minimum 11 13 16 Ds BS __1_ ai A a he a ITT TILL ITT LLL LLLI Y Minimum 11 13 16 a Air inlet grille AN Minimum 23 51 Unit I
85. ooling Capacity Tables Table 16 LC187HV System Cooling Capacity Table Model No Suton Indoor Air Temp F DB F WB Nominal Capacity Air Temp 68 57 73 61 77164 80 67 86 72 90 75 Btu h CF DB qc shel Pi tc SHC Pi TC SHC Pi TC T shel Pi TC T SHC PI TC SHC PI 5 17 83 14 43 0 50 18 94 15 24 0 68 20 04 15 69 0 74 20 84 15 07 0 75 22 26 15 19 0 75 Zoot lose 0 75 10 17 80 14 53 0 52 18 91 15 35 0 70 20 02 15 80 0 76 20 81 15 18 0 77 22 23 15 30 0 77 2380 m59 0 77 15 17 78 14 64 0 53 18 88 15 46 0 72 19 99 15 92 0 78 20 78 15 29 0 79 22 20 15 42 0 79 25 300 est 0 79 20 17 75 14 74 0 54 18 86 15 57 0 74 19 96 16 03 0 80 20 75 15 40 0 81 22 16 15 53 0 81 2o22 0 81 25 17 73 14 85 0 56 18 83 15 68 0 76 19 93 16 14 0 82 20 72 15 50 0 83 22 13 15 63 0 83 23 23 15 93 0 83 30 17 70 14 95 0 57 18 80 15 79 0 78 19 90 16 26 0 84 20 69 15 61 0 85 22 10 15 74 0 85 23 20 16 04 0 85 35 17 68 15 05 0 59 18 77 15 90 0 80 19 87 16 37 0 86 20 66 15 72 0 87 22 07 15 85 0 88 2A I 16 15 0 87 40 17 65 15 16 0 60 18 75 16 01 0 81 19 84 16 48 0 88 20 63 15 83 0 90 22 04 15 96 0 90 20 10 16 26 0 89 45 17 63 15 26 0 61 18 72 16 12 0 83 19 81 16 59 0 90 20 60 15 94 0 92 22 00 16 07 0 92 23 10 16 37 0 92 50 17 60 15 36 0 63 18 69 16 23 0 85 19 79 16 70 0 92 20 57
86. or control Premium and monitoring by open protocol BACnet and 64 128 LonWorks building LonWorks Gateway PLNWKB100 with PDI 1 219 automation and controls Premium systems Before specifying or placing an order refer to the V Net Network Solutions Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these devices For information on controller capabilities refer to the Controls and Options Table on page 27 26 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ACCESSORIES Functions Controls and Options Table 14 Indoor Units Functions Controls and Options Indoor Unit Type Four Way Ceiling Cassette Air supply outlets Airflow direction control up amp down Auto swing up and down Airflow steps fan cool heat Chaos wind auto wind Jet cool heat Swirl wind Plasma air purifier Washable anti fungal Drain pump E S P control High ceiling operation Auto Elevation Grille Hot Start Self diagnostics Soft Dry dehumidification Auto changeover Auto operation Auto restart Child lock Forced operation Group control Requires the use of one Group Control Cable Kit PZCWRCG3 for every additional indoor unit Sleep m
87. orts shall be Figure 39 Pipe Hanger Details installed outside around the primary pipe insulation jacket see Figure 39 Insulate the pipe first because pipe supports shall be installed outside around the primary pipe insulation jacket Clevis hangers should be used with shields between the hangers and insulation Field provided pipe supports should be designed to meet local codes If allowed by code use fiber straps or split ring hangers sus pended from the ceiling on all thread rods fiber straps or split ring hangers can be used as long as they do not compress the pipe in sulation Place a second layer of insulation over the pipe insulation jacket to prevent chafing and compression of the primary insulation within the confines of the support pipe clamp Figure 40 Typical Pipe Support Location Change in Pipe Direction A properly installed pipe system will have sufficient supports to avoid pipes from sagging during the life of the system As necessary place supports closer for segments where potential sagging could occur Maximum spacing of pipe supports shall meet local codes If local codes do not specify pipe support spacing pipe shall be sup ported a maximum of 5 feet on center for straight segments of pipe up to 3 4 outside diameter size Max 12 Wherever the pipe changes direction place a hanger within twelve 12 inches on one side and within twelve to nineteen 12 to 19 inches of the bend on the other
88. otor shaft speed and deliver an appropriate amount of cooling to the indoor unit Occupants remain comfortable while utility costs are reduced Simplified Installation The LG four way ceiling cassette system simplifies and reduces mechanical and control system design time The designer no longer has to be concerned with intercon necting chilled and condenser water piping complicated air distribution duct systems matching and selecting chillers towers pumps coils fans air handlers or Variable Air Volume VAV boxes Operating Range Four way ceiling cassette systems are available in 1 5 2 3 and 3 5 ton capacities Operating ranges for the outdoor units are Cooling 5 F DB to 118 F DB Heating 0 F WB to 64 F WB Clean Finish The four way ceiling cassette indoor unit case is recessed while the off white archi tectural grille required sold separately is flush mounted providing a clean look to the room Heat Transfer Efficiency Fin Design with GoldFin Coating All four way ceiling cassette outdoor units are provided with large surface coils made of copper tubes with louvered aluminum fins designed to maximize unit operating efficien cy over a wide range of ambient conditions Standard from the factory the LG outdoor coil fin surface is coated with LG s exclusive GoldFin anti corrosive coating designed to prevent natural surface corrosion of the aluminum fins This maintains heat transfer propertie
89. r Unit Sound Pressure Levels dBJA wait Sound Pressure Levels dB A cower a e a LON247HV LCN367HV LON427HV 4 9 ft Microphone Figure 9 Four Way Ceiling Cassette Indoor Unit Sound Pressure Level Diagrams LCN187HV LON247HV LCN367HV LON427HV 20uPa 20uPa Octave Band Sound Pressure Level 0dB Octave Band Sound Pressure Level 0dB Approximate Hearing Threshold 63 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 Octave Band Center Frequency Hz Octave Band Center Frequency Hz 16 FOUR WAY CASSETTE Due to our policy of continuous product innovation some specifications may change without notification D LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp AIR VELOCITY AND TEMPERATURE DISTRIBUTION Figure 10 LCN187HV Air Velocity and Temperature Distribution Charts Cooling Discharge angle 40 Air velocity ft s 13ft 10ft Tft Temperature F 13ft 10ft Tft Tft 10ft Discharge angle 50 Air velocity ft s 13ft 10ft Temperature F 13ft 10ft Figure 11 LCN247HV Air Velocity and Temperature Distribution Charts Cooling Discharge angle 40 Air velocity ft s 13ft 10ft Temperature F 13ft 10ft LG Tft 10ft Discharge angle 50 Air velocity ft s 13ft 10ft Temperature F 13ft 10ft Due to our policy of conti
90. r policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 48 FOUR WAY CASSETTE Figure 29 Lightening Protection Diagram Lightning rod Lightning rod Protection Angle 25 55 Safe zone Ground Note If the building does not include lightning protection the outdoor unit may be damaged from a lightening strike Inform the customer of this possibility in advance Figure 30 Bracket Mounting PLACEMENT CONSIDERATIONS Bolting the Outdoor Unit to the Platform Figure 33 Bolting the Outdoor Unit to the Platform KE M rni D yy LZ EL lL L O LZ C2 c5 ZZ Ly NN wi A S gt c gt Sse SS AN A Y NA NA SS WN WS MA W if N N NILS JA olo oO es Minimum 7 7 8 inches lla gt Minimum 15 3 4 inches Minimum 24 13 32 inches Minimum LUU187 247HV Outdoor Unit 7 718 Table 31 Outdoor Unit Foundation Specifications Outdoor Unit Bolt Type Concrete Height Bolt Depth LUU187HV LUU247HV Mad Minimum 2 3 4 inches Outdoor Unit Unit Inch
91. rcial 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 Indoor units located within the zone typically require less airflow to condition the space During the design phase refer to the airflow capabilities listed in the specification tables for each product Choose the best method for the application out of the five 5 ventilation options available Note Disclaimer Although we believe that these building ventilation methods have been portrayed accurately none of the methods have been tested verified or evaluated by LG Electronics U S A Inc In all cases the designer installer and contractor should understand if the suggested method is used it is used at their own risk LG Electronics U S A Inc takes no responsibility and offers no warranty expressed or implied of merchantability or fitness of purpose if this method fails to perform as stated or intended For a complete copy of ASHRAE Standard 62 1 and 62 2 refer to the American Standard of Heating and Air Conditioning Engineers ASHRAE website at www ashrae org Method 1 Natural Ventilation Non Ducted Unconditioned Outdoor Air Natural ventilation devices such as operable windows or louvers may be used to ventilate the building when local code permits Advantages Disadvantages e Occupants co
92. rtially installed in the ceiling plenum pay special attention to insulating the pipes _ Overlap the Insulation at the Connection The design engineer should perform calculations to determine if the factory supplied insulation jackets are sufficient to meet local codes and avoid sweating Add additional insulation if necessary Check the fit of the insulation jacket after the header fitting and all run out pipes are installed Mark all pipes at the point where the insulation jacket ends Remove the jacket Install field provided insulation on the run out and main trunk pipes first Install the LG provided insulation plugs on the ends of all unused header ports Peel the adhesive glue protector slip from the insulation jacket and install the clam shell jacket over the fitting Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene EPDM Insulation Wall Thickness Requirements Note Follow locals codes when selecting EPDM insulation wall thickness Table 43 Insulation Guidelines for Typical and Special Circumstances EAN Air conditioned location Non air conditioned location 1 Typical location 2 Special location 3 a location 4 EE location NNE m 1 2 inches 1 2 inches zines Mzinhes Liquid pipe 3l8inches inches g1 2 inches 1 2 inches 1 2 inches 1 2 inches 1 2 inches e 5l8inches 3l4inches inches Air conditioned Typical location When the piping passes through an indoor area where the indoor unit op
93. s NJ All rights reserved LG is a registered trademark of LG Corp INTRODUCTION 5 uoli npo1 u Four Way Ceiling Cassette System Engineering Manual ARCHITECTURAL APPEAL Convergence of Technological Innovation with Flexibility and Style Four Way Ceiling Cassette DFS Systems A four way ceiling cassette DFS system provides a system designer an edge to engineer a system with many user adjustable settings Four way ceiling cassette systems features a ceiling recessed indoor unit case and an off white architectural grille required sold separately that is flush mounted providing a clean look to the room These systems are 208 230V 60Hz 1PH systems available in anominal capacities of 1 1 2 2 3 and 3 1 2 tons and are best Suited in light commercial applications or large open spaces The ceiling cassette indoor unit is a useful alternative when wall space is limited Inverter Technology LG four way ceiling cassette air source systems offer zoning without the need for zone damper systems The advanced controls of the four way ceiling cassette system provide exceptional zone dehumid ification and temperature control and can rapidly adapt system op erating parameters to the ever changing building load Single zone four way ceiling cassette systems are easy to design install and maintain The design allows occupants to control their environmental condition providing individualized control of the set point tempera ture a
94. s discharge side obstacle is higher than the outdoor unit is higher than the outdoor unit Table 32 Ratio among H A and L O 1 0 lt H lt L lt 1 2 H 29 1 32 inches 1 2 H lt L 39 3 8 inches H lt L Set Stand as L lt H Minimum 39 3 8 lf a stand is necessary it should be contained not open frame to prevent the discharge air from short cycling Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 51 SaUuIjJapINgsS uoljedijddy Manual ineering Four Way Ceiling Cassette System Eng PLACEMENT CONSIDERATIONS Clearance Requirements when Different Obstacles are Present continued Unit Inch Where there are obstacles on both suction Where there are obstacles above and on both and discharge sides discharge side obstacle suction and discharge sides discharge side obstacle is lower than the outdoor unit is lower than the outdoor unit Minimum 39 3 8 Note L should be lower than H If a Stand is necessary it should be contained not open frame to prevent the discharge air from short cycling Series installation LLLLLL VILLILIL LLL L a N VILLLLL LULL LLL LLL LLL LLL LLL NS CSS CSS Y Vf 9 KA LULU IDII LLL LL GILLI LLL
95. s of the coil for an extended time A hydrophilic coating is applied to the outdoor unit coil fin surface over the GoldFin coating This coating enhances the development of heavier water droplets gathering on the fin surface As a result the droplets roll off the fin surfaces delaying the point when frost forms on the coil surface during heating op eration This coating also makes it possible to easily clean the outdoor unit coil using a mild soap Other Features Inverter Variable Speed Compressor Five fan speeds Auto restart e Auto changeover e Swirl Wind Internal condensate pump included e Precision Load Matching Follows AHRI 210 240 The following table shows the available outdoor and indoor unit along with the factory provided controller Table 1 Four Way Ceiling Cassette System Pairing Table Outdoor Unit Model Btu h Indoor Unit Model Btu h Controller LUU187HV 18 000 LUU367HV 36 000 LCN187HV 18 000 LCN247HV 24 000 o OWRHDFO LUU247HV 24 000 LUU427HV 42 000 LCN367HV 36 000 LCN427HV 42 000 Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA SPECIFICATIONS Table 2 Four Way Ceiling Cassette System General Data Type single Zone Four Way Ceiling Cassette LC187HV LC247HV LC36
96. ssessesseassessesssssssassasesssesensassassassasessessensassassassaseaseasensassassassasesseasnsaesateaseaseaseass 55 56 Refrigerant Piping System LAyOut cccseccsssssesssssssessssescssssssscssssssssssssssessssssssssssssssssesessusacsesausassesassasausaesssassaseesausasessaseasausaseesausasessassasesaseasansates 57 61 POOTO QE O e EAEE EEE EAA E AEE E EEEE AE NAE E A 62 63 Condensate Drain PIHOING ccccccccsscssessessessessescscsscssessesssesssssesssssssasssssassasensassasssssssssssassnsessassassassassasessessassassassassasensessansassaseaseaseaseasnsassateaseaseaseats 63 64 Electrical and Mechanical Specifications sacag et ncizervccasqacsuenacte eaecssacesniceanuansionsoeacsscstanesua nando anusacets atueeseceeasetaceseransesuaniatasnunesueiarean san autaneanesieeeennonas 65 71 WUTC CONCOLOR T ets ans bites E mains Bedi E E RETE Agoda E EEE NEE 66 69 Tol gfe Tad ere o pecNEANONS siessen niae EA E E EREE AASE AE TATER E TE eee 70 71 ae LaL INS AA A EEA EEE E AE A AE A AA E A E A A E E AEE 72 TABLE OF SYMBOLS This symbol indicates a potentially hazardous situation which if not avoided may result in death or serious AWARNING p This symbol indicates additional helpful information such as an explanation a comment or a clarification about the subject This symbol indicates a recommendation or tip Recommendations instruct the user to apply the suggested practice to ensure the best operating results in order to achieve the maximum benefit of
97. stered trademark of LG Corp FOUR WAY CASSETTE 41 s uij pi ing uoljedijddy BUILDING VENTILATION DESIGN GUIDE Method 3 Unconditioned Outdoor Air Ducted to Indoor Units Untreated outdoor air is channeled through a duct system that is piped to the return air duct on Duct Free Split system ducted indoor units or to the frame of Duct Free Split system four way cassettes Note Outside air may flow backward through the return air filter grille when the indoor unit fan speed slows or stops in response to changes in the space load This may result in captured particulate on the filter media being blown back into the conditioned space Advantages Disadvantages e May require less ductwork if indoor units are Fan s will be required to push outdoor air to the indoor unit to overcome the additional placed near outdoor walls or a roof deck static pressure Controls must be interlocked to shut off the Filter required to be added to the outdoor air duct outdoor air supply fan when the space is Ducted and four way cassette models are the only indoor units that accept the connection unoccupied of an outdoor air duct to the unit case e Third party demand control ventilation e In most cases in lieu of using the factory mounted return air thermistor on indoor units a controls may be installed to regulate outdoor remote wall temperature sensor or zone controller will be needed to provide an accurate intake based on the CO levels of the
98. such copper burrs slag or carbon dust during installation 1 The refrigeration system components contain very small capillary tubes small Figure 47 Refrigerant Pipe Brazing orifices electronic expansion valves oil separators heat exchangers When joints are brazed in field these components can easily get blocked Refrigerant l l l Piping Pipe to Pressure reducing Store pipe stock in a dry place keep stored pipe capped and clean ha brazed a Valve Blow clean all pipe sections with dry nitrogen before assembly 7 TTT he lt t3 Nitrogen HHP DN 2 Proper system operation depends on the installer using best practices and utmost care while assembling the piping system Tape e Use adapters to assemble different sizes of pipe Do not use flux soft solder or anti oxidant agents Use a tubing cutter do not use a saw to cut pipe De burr and clean all cuts before assembly Packless Valve 3 Brazing Joints Use a dry nitrogen purge operating at a minimum pressure of three 3 psig and maintain a steady flow e Use a 15 silver phosphorous copper brazing alloy to avoid overheating and produce good flow e Protect isolation valves electronic expansion valves and other heat sensitive control components from excessive heat with a wet rag or a heat barrier spray product Flare Connection Practices Figure 48 Flare Connection Isometric View Note OST mee Improperly installed flare connections can le
99. terials approved by local codes generally PVC Slope gradient for the drain should be 1 50 1 100 and support hangers should be used at 3 5 16 to 5 foot intervals to keep the condensate drainage system stable see table below and to reduce vibration Figure 52 Condensate Drain Piping Gradient Indoor unit Or Outdoor unit Gradient of at least 1 50 1 100 Table 44 Interval per Drainage Pipe Diameter Pipe Diameter Inches 13 16 1 9 16 1 9 16 2 2 9 16 4 15 16 Maximum Interval feet Outdoor Units See page 47 to 52 for information in reference to outdoor unit placement and condensate drainage Indoor Units The Four Way Ceiling Cassette indoor units include a factory installed drain pump Depending on the location of the indoor unit condensa tion can be drained directly to the outside of the building or tied into a drainage piping system Table 45 Drain Piping Specifications Drain Pipe Dia inches tee dota fs Amount of Drainage gpm seer alt External Internal Elie Ee fete iret at 0 4 inches high Four Way Ceiling Cassette 1 1 4 1 Standard 31 1 2 0 106 Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp DUCT HIGH STATIC 63 991 9eJg s g pue u s q Huidig jueIBHIIaY Ceiling Concealed Duct High Static System En
100. the product Tips contain practical information that may help the user solve a problem or describe actions that may save time i L G Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp INTRODUCTION 3 uoli npo1 u Four Way Ceiling Cassette System Engineering Manual CONVERGENCE OF TECHNOLOGY INNOVATION FLEXIBILITY amp STYLE About LG Electronics Inc LG Electronics Inc is a global leader and technology innovator in consumer electronics mobile communications and home appliances employing more than 213 000 people in more than 60 countries worldwide LG Electronics Inc comprises five business units Home Entertainment Mobile Communications Air Conditioning Business Solutions and Home Appliance LG is one of the world s leading producers of flat panel televisions audio and video products mobile handsets air conditioners and washing machines LG s commercial air conditioning business unit was estab lished in 1968 and has built its lineup of residential and commercial products to include VRF Multi F duct free split systems packaged terminal air conditioners PTACs and room air conditioners In 2011 the air conditioning and energy solutions business unit grew to include LED lighting and solar products For more information visit www Ig
101. ting ranges for outdoor units of 5 F to 118 F DB for cooling 0 F to 64 F WB for heating Indoor Unit Operating ranges for indoor units of 57 F to 77 F WB for cooling 59 F to 81 F DB for heating Casing Frame Outdoor Unit The outdoor condensing unit case is constructed from pre coated metal PCM that has been tested in accordance with ASTM B 117 salt spray procedure for a minimum of 1 000 hours Case has a removable panel to allow access to major internal components and legs to secure the unit during installation Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 70 FOUR WAY CASSETTE Figure 69 Four Way Ceiling Cassette System LC187HV LC247HV Models Indoor Unit The indoor unit case is con structed of a galvanized steel plate designed to recess in the ceiling and has a surface mounted concentric grille on the bottom of the unit Unit has four supply air outlets and one return air inlet The supply air outlet has four a directional slot diffusers each equipped with an independent oscillating motorized guide vane to change airflow direc tion A guide vane algorithm sequentially changes the predominant discharge airflow direction in counterclockwise pattern or can be used to i lock each guide vane inde pendently in a f
102. tion Lagging D Caulk Band F Water resistant layer Sleeve with edge Lagging D Mortar or other fire resistant caulk J Fire resistant insulation When filling an access hole with mortar cover the Underground Refrigerant Piping area with steel plate so that the insulation will not fall through For this area use fire resistant materials for both the insulation and cover Vinyl cover should not be used Refrigerant pipe installed underground should be routed inside a vapor tight protective sleeve to prevent insulation deterioration and water infiltration Refrigerant pipe installed inside underground casing must be continuous without any joints Underground refrigerant pipe must be located at a level below the frost line Table 40 Utility Conduit Sizes Vapor Pipe oma fo o a Jo os ee aanas o o a manx s5 5 5 aasa o 5 ES f o 5 OD pipe diameter in inches Values in parenthesis indicate OD of pipe with insulation jacket Diameter of pipe with insulation Thickness of pipe insulation is typical Actual required thickness may vary based on surrounding ambient conditions and should be calculated and specified by the design engineer Insulation thickness value in parenthesis 3 8 inch Insulation thickness value in parenthesis 1 inch Insulation thickness value in parenthesis 3 4 inch Liquid Pipe LG Figure 43 Typical Arrangement of Re
103. tor From Capacity Coefficient Q From capacity tables Factor Tables F for each piping length length odu rated 2 Outdoor Unit Capacity at Ti To Temperature Q From capacity tables 5 Individual Indoor Unit Combination Capacity Q Q XQ Q odu Ti To idu combi odu rated idu rated idu rated total 3 Outdoor Unit Capacity Coefficient Factor Fon aa a 6 Individual Indoor Unit Actual Capacity idu actual 7 oe X Fna X F ndih aliuda Conclusions and Recommendations Understand the design safety factors Use caution when sizing to meet listed capacity specifications for e Reference load calculations for actual cooling and heating capac the scheduled manufacturer s equipment ities applies in 99 of applications consider total load when lf further system design assistance is needed or you have a unique latent load is greater than 30 application you would like to discuss contact your LG sales rep e Verify that the sensible load of the zone is satisfied Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 39 s uij pi ing uoljedijddy Four Way Ceiling Cassette System Engineering Manual BUILDING VENTILATION DESIGN GUIDE ASHRAE Standards 62 1 and 62 2 depending on if the building is residential or comme
104. trademark of LG Corp FOUR WAY CASSETTE 67 Four Way Ceiling Cassette System Engineering Manual ELECTRICAL CONNECTIONS Wiring Connections Figure 63 Detailed Power Communications System Schematic A WARNING 9 y L N Power Supply Main Switch e Use only copper wiring that is strand ed shielded with the wires separately insulated Power wiring and communications cable sizes must comply with applicable feder al UL ETL state and local codes Install a ground wire for the outdoor unit and indoor unit Verify all wiring cable connections are appropriately tightened Outdoor Unit L Circuit Breaker wa Je Terminal Block Outdoor 1 L1 2 L2 Fuse Power Wiring Including Ground Communication Cable E as 1 L1 2 L2 Terminal Block Indoor Indoor Unit Connecting the Power Wiring Communications Cable to the Outdoor Unit LUU187HV LUU247HV Outdoor Unit Connections LUU367HV LUU427HV Outdoor Unit Connections 1 Remove the control cover from the unit by loosening the screws 1 Remove the side panel 2 Take off the caps on the conduit panel 2 Use the clamp to attach the wiring cable 3 Connect both the power supply and low voltage lines to the corre sponding terminals on the terminal block Figure 65 LUU367 427HV Outdoor Unit Term
105. two expansion distance values The result will be the anticipated change in pipe length Example A DFS system is installed and the design shows that there is a 100 foot straight segment of tubing between an indoor unit and the out door unit In heating this pipe transports hot gas vapor to the indoor units at 120 F In cooling the same tube is a suction line returning refrigerant vapor to the outdoor unit at 40 F Look up the copper tubing expansion at each temperature and calculate the difference Vapor Line Transporting Hot Vapor 100 ft pipe at 120 F 1 40 in Transporting Suction Vapor 100 ft pipe at 40 F 0 40 in Anticipated Change in Length 1 40 in 0 40 in 1 00 in Liquid Line The liquid temperature remains the same temperature only the direction of flow will reverse Therefore no significant change in length of the liquid line is anticipated When creating an expansion joint the joint height should be a minimum of two times the joint width Although different types of expansion arrangements are available the data for correctly sizing an Expansion Loop is provided in Table 38 Use soft copper with long radius bends on longer runs or long radius elbows for shorter pipe segments Using the anticipated linear expansion LE distance calculated look up the Expansion Loop or U bend minimum design dimensions If other types of expansion joints are chosen design per ASTM B 88 Standards Due to our policy of conti
106. umulating on the coil surfaces Use inlet and discharge duct or hoods to prevent snow or rain from accumulating on the fan inlet and outlet guards Best practice prevents snow from accumulating on top of the unit Consider tie down requirements in case of high winds or where required by local codes The system may take longer to provide heat or heating performance will be reduced in winter if the outdoor unit is installed 1 In a narrow shady location 2 Near a location that has a lot of ground moisture 3 In a highly humid environment 4 In an area in which condensate does not drain properly Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp FOUR WAY CASSETTE 47 SdUIJapINgS uoljedijddy Four Way Ceiling Cassette System Engineering Manual PLACEMENT CONSIDERATIONS Outdoor Unit Tie Downs Wind Restraints and Lightening Protection The strength of the Four Way Ceiling Cassette system outdoor unit frame is adequate to be used with field provided wind restraint tie downs Tie Downs Wind Restraints 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 co
107. ur policy of continuous product innovation some specifications may change without notification 64 DUCT HIGH STATIC LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG ELECTRICAL AND MECHANICAL SPECIFICATIONS Wiring Connections on page 66 Mechanical Specifications on page 70 Acronyms on page 72 Four Way Ceiling Cassette System Engineering Manual ELECTRICAL CONNECTIONS Wiring Connections General Information A WARNING Only qualified technicians in accordance with federal state and local codes and manufacturer product diagrams and requirements should install the power wiring and communication cables e Use only copper wiring that is stranded shielded with the wires separately insulated Do not use a multi conductor cable with more than five 5 wires in one 1 core Power wiring and communications cable sizes must comply with applicable federal UL ETL state and local codes Verify that the branch switch and circuit breaker are set to OFF before installing the wiring system Do not operate the air conditioning system until the refrigerant piping installation is complete Operating the system before refrigerant piping is finalized may damage the compressor Install a ground wire for the outdoor unit and indoor unit Install a main shutoff switch or circuit breaker that interrupts the power source circu
108. ystem between the outdoor units and the indoor units The components may cause vapor to form in the liquid stream Over time dryers may deteriorate and introduce debris into the system No Pipe Size Substitutions Use only the pipe size as conveyed in the product installation instructions Using a different size is prohibited and may result in a system malfunction or failure to work at all Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp DUCT HIGH STATIC 57 991 9eJg s g pue u s q Huidig jJuBeIBHIIaY Ceiling Concealed Duct High Static System Engineering Manual REFRIGERANT PIPING DESIGN Refrigerant Piping System Layout Inserts and Pipe Supports Figure 38 Installing an Insert Into a Inserts Concrete Beam An insert can be installed into a floor or beam before the concrete sets so that fittings such as ducts J pipes or suspension bolts can be added at a later time Decide where the inserts should be placed before support installation Anti vibration Material Pipe Supports Note A properly installed pipe system should be adequately supported to avoid pipe sagging Sagging pipes become oil traps that lead to equipment malfunction Concrete Beam Suspension Bolt Pipe supports should never touch the pipe wall supp

Single-Zone Four-Way Ceiling-CaSSette SyStem - LG Duct-Free

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