Installer and user reference guide

Transcription

1 Instller n user reerene guie Air-oole rerigertion onensing unit LRMEQ3BY1 LRMEQ4BY1 LRLEQ3BY1 LRLEQ4BY1 Instller n user reerene guie Air-oole rerigertion onensing unit English

2 Tle o ontents Tle o ontents 1 Generl sety preutions Aout the oumenttion Mening o wrnings n symols For the user For the instller Generl Instlltion site Rerigernt Brine Wter Eletril Aout the oumenttion Aout this oument... 6 For the instller 7 3 Aout the ox Overview: Aout the ox Outoor unit To unpk the outoor unit To hnle the outoor unit To remove the essories rom the outoor unit To remove the trnsporttion sty Aout the units Overview: Aout the units Ientiition Ientiition lel: Outoor unit Aout the outoor unit System lyout Comining units n options Possile options or the outoor unit Aout the inoor units Preprtion Overview: Preprtion Prepring the instlltion site Instlltion site requirements o the outoor unit Aitionl instlltion site requirements o the outoor unit in ol limtes Seuring sety ginst rerigernt leks Prepring rerigernt piping Aout reusing existing piping Rerigernt piping requirements Rerigernt piping mteril To selet the piping size To selet rerigernt rnh kits Rerigernt piping length n height ierene To selet the expnsion vlve Prepring eletril wiring Sety evie requirements Instlltion Overview: Instlltion Opening the units Aout opening the units To open the outoor unit Mounting the outoor unit Aout mounting the outoor unit Preutions when mounting the outoor unit To provie the instlltion struture To instll the outoor unit To prevent the outoor unit rom lling over Conneting the rerigernt piping Aout onneting the rerigernt piping Preutions when onneting the rerigernt piping Pipe ening guielines To rze the pipe en Using the stop vlve n servie port To remove the pinhe pipes Guielines when instlling sight glss Guielines when instlling ryer To onnet the rerigernt piping to the outoor unit Guielines when onneting piping rnhing Cheking the rerigernt piping Aout heking the rerigernt piping Cheking rerigernt piping: Generl guielines Cheking rerigernt piping: Setup To perorm lek test To perorm vuum rying To insulte the rerigernt piping Chrging rerigernt Aout hrging rerigernt Preutions when hrging rerigernt To etermine the itionl rerigernt mount To hrge rerigernt Error oes when hrging rerigernt To ix the luorinte greenhouse gses lel Conneting the eletril wiring Aout onneting the eletril wiring Fiel wiring: Overview Preutions when onneting the eletril wiring Guielines when knoking out knokout holes Guielines when onneting the eletril wiring To onnet the eletril wiring on the outoor unit Finishing the outoor unit instlltion To lose the outoor unit Conigurtion Overview: Conigurtion Mking iel settings Aout mking iel settings To ess the iel setting omponents Fiel setting omponents To ess moe 1 or To use moe To use moe Moe 1 (n eult sitution): Monitoring settings Moe 2: Fiel settings To onnet the PC onigurtor to the outoor unit Commissioning Overview: Commissioning Preutions when ommissioning Cheklist eore ommissioning Cheklist uring ommissioning Aout the test run To perorm test run (7-LEDs isply) Correting ter norml ompletion o the test run Operting the unit Hn-over to the user Mintenne n servie Overview: Mintenne n servie Mintenne sety preutions To prevent eletril hzrs Cheklist or yerly mintenne o the outoor unit Trouleshooting Overview: Trouleshooting Preutions when trouleshooting Solving prolems se on error oes To isply the error oes o the ltest mluntions Error oes: Overview Instller n user reerene guie 2 Air-oole rerigertion onensing unit

3 1 Generl sety preutions 12 Disposl Tehnil t Servie spe: Outoor unit Piping igrm: Outoor unit Wiring igrm: Outoor unit For the user Aout the system System lyout Beore opertion Opertion Opertion rnge Operting the system Aout operting the system Energy sving n optimum opertion Mintenne n servie Mintenne ter long stop perio Aout the rerigernt Ater-sles servie n wrrnty Wrrnty perio Reommene mintenne n inspetion Trouleshooting Symptoms tht re NOT system mluntions Symptom: The system oes not operte Symptom: The unit oes not stop immeitely when opertion is stoppe Symptom: Noise (Outoor unit) Symptom: Dust omes out o the unit Symptom: The outoor unit n oes not spin Relotion Disposl Glossry 42 1 Generl sety preutions 1.1 Aout the oumenttion The originl oumenttion is written in English. All other lnguges re trnsltions. The preutions esrie in this oument over very importnt topis, ollow them reully. The instlltion o the system, n ll tivities esrie in the instlltion mnul n the instller reerene guie MUST e perorme y n uthorise instller. DANGER: RISK OF EXPLOSION Inites sitution tht oul result in explosion. Inites sitution tht oul result in eth or serious injury. : FLAMMABLE MATERIAL CAUTION Inites sitution tht oul result in minor or moerte injury. Inites sitution tht oul result in equipment or property mge. Inites useul tips or itionl inormtion. Symol 1.2 For the user Explntion Beore instlltion, re the instlltion n opertion mnul, n the wiring instrution sheet. Beore perorming mintenne n servie tsks, re the servie mnul. For more inormtion, see the instller n user reerene guie. I you re NOT sure how to operte the unit, ontt your instller. This ppline n e use y hilren ge rom 8 yers n ove n persons with reue physil, sensory or mentl pilities or lk o experiene n knowlege i they hve een given supervision or instrution onerning use o the ppline in se wy n unerstn the hzrs involve. Chilren shll NOT ply with the ppline. Clening n user mintenne shll NOT e me y hilren without supervision. To prevent eletri shoks or ire: Do NOT rinse the unit. Do NOT operte the unit with wet hns. Do NOT ple ny ojets ontining wter on the unit. Do NOT ple ny ojets or equipment on top o the unit. Do NOT sit, lim or stn on the unit. Units re mrke with the ollowing symol: Mening o wrnings n symols DANGER Inites sitution tht results in eth or serious injury. DANGER: RISK OF ELECTROCUTION Inites sitution tht oul result in eletroution. DANGER: RISK OF BURNING Inites sitution tht oul result in urning euse o extreme hot or ol tempertures. This mens tht eletril n eletroni prouts my NOT e mixe with unsorte househol wste. Do NOT try to ismntle the system yoursel: the ismntling o the system, tretment o the rerigernt, o oil n o other prts must e one y n uthorize instller n must omply with pplile legisltion. Units must e trete t speilize tretment ility or reuse, reyling n reovery. By ensuring this prout is ispose o orretly, you will help to prevent potentil negtive onsequenes or the environment n humn helth. For more inormtion, ontt your instller or lol uthority. Air-oole rerigertion onensing unit Instller n user reerene guie 3

4 1 Generl sety preutions Btteries re mrke with the ollowing symol: This mens tht the tteries my NOT e mixe with unsorte househol wste. I hemil symol is printe eneth the symol, this hemil symol mens tht the ttery ontins hevy metl ove ertin onentrtion. Possile hemil symols re: P: le (>0.004%). Wste tteries must e trete t speilize tretment ility or reuse. By ensuring wste tteries re ispose o orretly, you will help to prevent potentil negtive onsequenes or the environment n humn helth. 1.3 For the instller Generl I you re NOT sure how to instll or operte the unit, ontt your eler. Improper instlltion or tthment o equipment or essories oul result in eletri shok, short-iruit, leks, ire or other mge to the equipment. Only use essories, optionl equipment n spre prts me or pprove y Dikin. Mke sure instlltion, testing n pplie mterils omply with pplile legisltion (on top o the instrutions esrie in the Dikin oumenttion). CAUTION Wer equte personl protetive equipment (protetive gloves, sety glsses, ) when instlling, mintining or serviing the system. Ter prt n throw wy plsti pkging gs so tht nooy, espeilly hilren, n ply with them. Possile risk: suotion. DANGER: RISK OF BURNING Do NOT touh the rerigernt piping, wter piping or internl prts uring n immeitely ter opertion. It oul e too hot or too ol. Give it time to return to norml temperture. I you must touh it, wer protetive gloves. Do NOT touh ny ientl leking rerigernt. Provie equte mesures to prevent tht the unit n e use s shelter y smll nimls. Smll nimls tht mke ontt with eletril prts n use mluntions, smoke or ire. CAUTION Do NOT touh the ir inlet or luminium ins o the unit. Do NOT ple ny ojets or equipment on top o the unit. Do NOT sit, lim or stn on the unit. In orne with the pplile legisltion, it might e neessry to provie logook with the prout ontining t lest: inormtion on mintenne, repir work, results o tests, stn-y perios, Also, t lest, ollowing inormtion MUST e provie t n essile ple t the prout: Instrutions or shutting own the system in se o n emergeny Nme n ress o ire eprtment, polie n hospitl Nme, ress n y n night telephone numers or otining servie In Europe, EN378 provies the neessry guine or this logook Instlltion site Provie suiient spe roun the unit or serviing n ir irultion. Mke sure the instlltion site withstns the unit's weight n virtion. Mke sure the re is well ventilte. Do NOT lok ny ventiltion openings. Mke sure the unit is level. Do NOT instll the unit in the ollowing ples: In potentilly explosive tmospheres. In ples where there is mhinery tht emits eletromgneti wves. Eletromgneti wves my istur the ontrol system, n use mluntion o the equipment. In ples where there is risk o ire ue to the lekge o lmmle gses (exmple: thinner or gsoline), ron ire, ignitle ust. In ples where orrosive gs (exmple: sulphurous i gs) is proue. Corrosion o opper pipes or solere prts my use the rerigernt to lek Rerigernt I pplile. See the instlltion mnul or instller reerene guie o your pplition or more inormtion. Mke sure rerigernt piping instlltion omplies with pplile legisltion. In Europe, EN378 is the pplile stnr. Mke sure the iel piping n onnetions re NOT sujete to stress. During tests, NEVER pressurize the prout with pressure higher thn the mximum llowle pressure (s inite on the nmeplte o the unit). Tke suiient preutions in se o rerigernt lekge. I rerigernt gs leks, ventilte the re immeitely. Possile risks: Exessive rerigernt onentrtions in lose room n le to oxygen eiieny. Toxi gs my e proue i rerigernt gs omes into ontt with ire. Works exeute on the outoor unit re est one uner ry wether onitions to voi wter ingress. Instller n user reerene guie 4 Air-oole rerigertion onensing unit

5 1 Generl sety preutions DANGER: RISK OF EXPLOSION Pump own Rerigernt lekge. I you wnt to pump own the system, n there is lek in the rerigernt iruit: Do NOT use the unit's utomti pump own untion, with whih you n ollet ll rerigernt rom the system into the outoor unit. Possile onsequene: Sel-omustion n explosion o the ompressor euse o ir going into the operting ompressor. Use seprte reovery system so tht the unit's ompressor oes NOT hve to operte. ALWAYS reover the rerigernt. Do NOT relese them iretly into the environment. Use vuum pump to evute the instlltion. Ater ll the piping hs een onnete, mke sure there is no gs lek. Use nitrogen to perorm gs lek etetion. To voi ompressor rekown, o NOT hrge more thn the speiie mount o rerigernt. When the rerigernt system is to e opene, rerigernt MUST e trete oring to the pplile legisltion. Mke sure there is no oxygen in the system. Rerigernt my only e hrge ter perorming the lek test n the vuum rying. In se re-hrge is require, reer to the nmeplte o the unit. It sttes the type o rerigernt n neessry mount. The unit is tory hrge with rerigernt n epening on pipe sizes n pipe lengths some systems require itionl hrging o rerigernt. Only use tools exlusively or the rerigernt type use in the system, this to ensure pressure resistne n prevent oreign mterils rom entering into the system. Chrge the liqui rerigernt s ollows: I A siphon tue is present (i.e., the yliner is mrke with "Liqui illing siphon tthe") A siphon tue is NOT present Open rerigernt yliners slowly. Then Chrge with the yliner upright. Chrge with the yliner upsie own. Chrge the rerigernt in liqui orm. Aing it in gs orm my prevent norml opertion. CAUTION When the rerigernt hrging proeure is one or when pusing, lose the vlve o the rerigernt tnk immeitely. I the vlve is NOT lose immeitely, remining pressure might hrge itionl rerigernt. Possile onsequene: Inorret rerigernt mount Brine I pplile. See the instlltion mnul or instller reerene guie o your pplition or more inormtion. The seletion o the rine MUST e in orne with the pplile legisltion. Tke suiient preutions in se o rine lekge. I rine leks, ventilte the re immeitely n ontt your lol eler. The mient temperture insie the unit n get muh higher thn tht o the room, e.g. 70 C. In se o rine lek, hot prts insie the unit n rete hzrous sitution. The use n instlltion o the pplition MUST omply with the sety n environmentl preutions speiie in the pplile legisltion Wter I pplile. See the instlltion mnul or instller reerene guie o your pplition or more inormtion. Mke sure wter qulity omplies with EU iretive 98/83 EC Eletril DANGER: RISK OF ELECTROCUTION Turn OFF ll power supply eore removing the swith ox over, onneting eletril wiring or touhing eletril prts. Disonnet the power supply or more thn 1 minute, n mesure the voltge t the terminls o min iruit pitors or eletril omponents eore serviing. The voltge MUST e less thn 50 V DC eore you n touh eletril omponents. For the lotion o the terminls, see the wiring igrm. Do NOT touh eletril omponents with wet hns. Do NOT leve the unit unttene when the servie over is remove. I NOT tory instlle, min swith or other mens or isonnetion, hving ontt seprtion in ll poles proviing ull isonnetion uner overvoltge tegory III onition, MUST e instlle in the ixe wiring. Air-oole rerigertion onensing unit Instller n user reerene guie 5

6 2 Aout the oumenttion ONLY use opper wires. Mke sure the iel wiring omplies with the pplile legisltion. All iel wiring MUST e perorme in orne with the wiring igrm supplie with the prout. NEVER squeeze unle les n mke sure they o NOT ome in ontt with the piping n shrp eges. Mke sure no externl pressure is pplie to the terminl onnetions. Mke sure to instll erth wiring. Do NOT erth the unit to utility pipe, surge sorer, or telephone erth. Inomplete erth my use eletril shok. Mke sure to use eite power iruit. NEVER use power supply shre y nother ppline. Mke sure to instll the require uses or iruit rekers. Mke sure to instll n erth lekge protetor. Filure to o so my use eletri shok or ire. When instlling the erth lekge protetor, mke sure it is omptile with the inverter (resistnt to high requeny eletri noise) to voi unneessry opening o the erth lekge protetor. CAUTION When onneting the power supply, the erth onnetion must e me eore the urrent-rrying onnetions re estlishe. When isonneting the power supply, the urrent-rrying onnetions must e seprte eore the erth onnetion is. The length o the onutors etween the power supply stress relie n the terminl lok itsel must e s suh tht the urrent-rrying wires re tutene eore the erth wire is in se the power supply is pulle loose rom the stress relie. Preutions when lying power wiring: Do NOT onnet wiring o ierent thiknesses to the power terminl lok (slk in the power wiring my use norml het). When onneting wiring whih is the sme thikness, o s shown in the igure ove. For wiring, use the esignte power wire n onnet irmly, then seure to prevent outsie pressure eing exerte on the terminl or. Use n pproprite srewriver or tightening the terminl srews. A srewriver with smll he will mge the he n mke proper tightening impossile. Over-tightening the terminl srews my rek them. Only pplile i the power supply is three phse, n the ompressor hs n ON/OFF strting metho. I there exists the possiility o reverse phse ter momentry lk out n the power goes on n o while the prout is operting, tth reverse phse protetion iruit lolly. Running the prout in reverse phse n rek the ompressor n other prts. 2 Aout the oumenttion 2.1 Aout this oument Trget uiene Authorise instllers + en users This ppline is intene to e use y expert or trine users in shops, in light inustry n on rms, or or ommeril use y ly persons. Doumenttion set This oument is prt o oumenttion set. The omplete set onsists o: Generl sety preutions: Sety instrutions tht you must re eore instlling Formt: Pper (in the ox o the outoor unit) Outoor unit instlltion n opertion mnul: Instlltion n opertion instrutions Formt: Pper (in the ox o the outoor unit) Instller n user reerene guie: Preprtion o the instlltion, reerene t, Detile step-y-step instrutions n kgroun inormtion or si n vne usge Formt: Digitl iles on Ltest revisions o the supplie oumenttion my e ville on the regionl Dikin wesite or vi your eler. The originl oumenttion is written in English. All other lnguges re trnsltions. Tehnil engineering t A suset o the ltest tehnil t is ville on the regionl Dikin wesite (pulily essile). The ull set o ltest tehnil t is ville on the Dikin extrnet (uthentition require). Ater inishing the eletril work, onirm tht eh eletril omponent n terminl insie the eletril omponents ox is onnete seurely. Mke sure ll overs re lose eore strting up the unit. Instller n user reerene guie 6 Air-oole rerigertion onensing unit

7 3 Aout the ox For the instller 3 Aout the ox 3.1 Overview: Aout the ox This hpter esries wht you hve to o ter the ox with the outoor unit is elivere on-site. Removing the trnsporttion sty Keep the ollowing in min: At elivery, the unit MUST e heke or mge. Any mge MUST e reporte immeitely to the rrier's lims gent. Bring the pke unit s lose s possile to its inl instlltion position to prevent mge uring trnsport. Prepre the pth long whih you wnt to ring the unit insie in vne. When hnling the unit, tke into ount the ollowing: Forklit. As long s the unit remins on its pllet, you n lso use orklit. Frgile, hnle the unit with re. Keep the unit upright in orer to voi ompressor mge. 3.2 Outoor unit To unpk the outoor unit To remove the essories rom the outoor unit 1 Remove the servie over. See "6.2.2 To open the outoor unit" on pge Remove the essories e 1 1 g 1 e g Generl sety preutions Outoor unit instlltion n opertion mnul Fluorinte greenhouse gses lel Multilingul luorinte greenhouse gses lel Gs piping essory 1 (Ø15.9 mm to 19.1 mm) Gs piping essory 2 (Ø19.1 mm) Gs piping essory 3 (Ø19.1 mm) To remove the trnsporttion sty To hnle the outoor unit CAUTION To voi injury, o NOT touh the ir inlet or luminium ins o the unit. Crry the unit slowly s shown: Air-oole rerigertion onensing unit I the unit is operte with the trnsporttion sty tthe, norml virtion or noise my e generte. The ompressor trnsporttion sty must e remove. It is instlle uner the ompressor leg in orer to protet the unit uring trnsport. Proee s shown in the igure n proeure elow. 1 Remove the nut () o the ompressor mounting olt. 2 Remove n isr the trnsporttion sty (). 3 Remove n isr the wsher (). 4 Re-instll the nut () o the ompressor mounting olt n tighten to 10.1 N m o torque. Instller n user reerene guie 7

8 4 Aout the units This unit is intene or outoor instlltion n ime or ir to ir ooling pplitions. Speiition Cpity (ooling) 4 (10.1 N m) 1 () Aout the units 4.1 Overview: Aout the units LRLEQ3 LRLEQ4 20~43 C DB Amient esign temperture (ooling) () LRMEQ3 LRMEQ kw() 8.40 kw() 2.78 kw() 3.62 kw() Cpity mesure t the ollowing onitions: mient temperture 32 C, evporting temperture 10 C, superhet 10 K. Cpity mesure t the ollowing onitions: mient temperture 32 C, evporting temperture 35 C, superhet 10 K. System lyout This hpter ontins inormtion out: Ientiition o the outoor unit. Where the outoor unit its in the system lyout. Possile options or the outoor unit. With whih inoor units you n omine the outoor units. 4.2 Ientiition Outoor unit (ZEAS onensing unit) Rerigernt piping Inoor unit (Blower oil) Inoor unit (Showse) 4.5 Comining units n options Possile options or the outoor unit When instlling or serviing severl units t the sme time, mke sure NOT to swith the servie pnels etween ierent moels Reer to the tehnil engineering t or the ltest option nmes. Ientiition lel: Outoor unit Rerigernt rnhing kit Lotion Desription Moel nme Renet heer KHRQ22M29H Renet joint KHRQ22M20T KHRQ22M29T9 Mous ommunition ox (BRR9A1V1) Intere tht provies two-wy ommunition possiility with thir-prty monitoring systems (BMS), vi Mous. Allows remote ess to ll operting prmeters, while t the sme time provies the possiility to ontrol the rerigertion units rom istne: setting the trget evporting temperture, resetting error oes, Moel ientiition Exmple: LR ME Q 4 B Y1 [*] Coe PC onigurtor le (EKPCCAB) Explntion LR ZEAS onensing unit ME/LE Meium temperture rerigertion / Low temperture rerigertion Q Rerigernt R410A 3+4 Cpity lss B Moel series Y1 Power supply [*] Minor moel hnge inition 4.3 Aout the outoor unit This instlltion mnul onerns the ZEAS onensing unit. You n mke severl ommissioning iel settings through personl omputer intere. For this option EKPCCAB is require whih is eite le to ommunite with the outoor unit. The user intere sotwre is ville on Aout the inoor units To e sure your system setup (outoor unit+inoor unit(s)) will work, you hve to onsult the ltest tehnil engineering t or ZEAS onensing unit. The ZEAS onensing unit n e omine with severl types o thir prty inoor units n is intene or R410A use only. When instlling inoor units, min the ollowing: Instller n user reerene guie 8 Air-oole rerigertion onensing unit

9 5 Preprtion Expnsion vlve. Instll n R410A expnsion vlve on eh inoor unit. Insulte the eeler lok o the expnsion vlve. Instll either mehnil thermostti expnsion vlve, or n eletroni expnsion vlve (proportionl or pulse type). When instlling pulse-type eletroni expnsion vlve, mke sure to protet the piping rom pressure wves use y the opening n losing o the vlve. The instlltion o pulse type expnsion vlve is the responsiility o the instller. For more inormtion, see "5.3.7 To selet the expnsion vlve" on pge 13. Solenoi vlve. Instll n R410A solenoi vlve (with n operting ierentil pressure o 3.5 MP [35 r] or more) on the primry sie o the expnsion vlve or eh inoor unit. Filter. Instll ilter on the primry sie o the solenoi vlve or eh inoor unit. Determine the ilter mesh ount se on the size speiie y the solenoi vlve n the expnsion vlve eing use. Rerigernt low. Route the pth to the inoor unit het exhnger so tht the rerigernt low is rom top to ottom. Derosting type. Use either o-yle erosting or eletri heter erosting moels. Do NOT use hot-gs erosting moels. Aout reusing existing inoor het exhngers In some ses you my reuse existing inoor het exhngers, in other ses not. Reuse NOT llowe You my not reuse existing inoor het exhngers in the ollowing ses: When the esign pressure is insuiient. Minimum esign pressure = 2.5 MP or 25 r When the pth to the het exhnger hs een route so tht the low o rerigernt is rom ottom to top. When the opper piping or n is orroe. When the het exhnger is ontminte. Foreign mterils (inluing oils or rition) must e 30 mg/10 m. Reuse llowe In other ses thn ove, you my reuse existing inoor het exhngers. However, i the ol onensing unit i NOT use the sme rerigernt (R410A) n the sme oil (FVC68D) s the new one, you must len the het exhnger tues to remove ny resiue. I the ol onensing unit i NOT use the sme rerigernt (R410A) s the new one, mke sure the expnsion vlve is omptile with R410A. 5.2 Prepring the instlltion site Do NOT instll the unit in ples oten use s work ple. In se o onstrution works (e.g. grining works) where lot o ust is rete, the unit MUST e overe. Choose n instlltion lotion with suiient spe or rrying the unit in n out o the site Instlltion site requirements o the outoor unit Also re the ollowing requirements: Generl instlltion site requirements. See the "Generl sety preutions" hpter. Servie spe requirements. See the "Tehnil t" hpter. Rerigernt piping requirements (length, height ierene). See urther in this "Preprtion" hpter. The soun pressure level is less thn 70 BA. CAUTION Appline not essile to the generl puli, instll it in seure re, protete rom esy ess. This unit, oth inoor n outoor, is suitle or instlltion in ommeril n light inustril environment. This equipment is omplint with Clss A o EN55032/ CISPR 32. In resientil environment this equipment my use rio intererene. The equipment esrie in this mnul my use eletroni noise generte rom rio-requeny energy. The equipment omplies to speiitions tht re esigne to provie resonle protetion ginst suh intererene. However, there is no gurntee tht intererene will not our in prtiulr instlltion. It is thereore reommene to instll the equipment n eletri wires keeping proper istnes wy rom stereo equipment, personl omputers, et. e g 5 Preprtion 5.1 Overview: Preprtion This hpter esries wht you hve to o n know eore going on-site. It ontins inormtion out: Prepring the instlltion site Prepring the rerigernt piping Prepring the eletril wiring e g Erth lekge protetor Fuse Inoor unit (Showse) Personl omputer or rio Inoor unit (Blower oil) User intere Outoor unit (mm) Air-oole rerigertion onensing unit Instller n user reerene guie 9

10 5 Preprtion In ples with wek reeption, keep istnes o 3 m or more to voi eletromgneti isturne o other equipment n use onuit tues or power n trnsmission lines. Selet ple where rin n e voie s muh s possile. Tke re tht in the event o wter lek, wter nnot use ny mge to the instlltion spe n surrounings. Choose lotion where the hot/ol ir ishrge rom the unit or the opertion noise, will NOT istur nyone. Het exhnger ins re shrp n injury is possile. Choose n instlltion lotion where there is no risk or injury (espeilly in res where hilren ply). Do NOT instll the unit in the ollowing ples: Soun sensitive res (e.g. ner eroom), so tht the opertion noise will use no troule. Note: I the soun is mesure uner tul instlltion onitions, the mesure vlue might e higher thn the soun pressure level mentione in Soun spetrum in the t ook ue to environmentl noise n soun reletions. In ples where minerl oil mist, spry or vpour my e present in the tmosphere. Plsti prts my eteriorte n ll o or use wter lekge. It is NOT reommene to instll the unit in the ollowing ples euse it my shorten the lie o the unit: Where the voltge lututes lot In vehiles or vessels Where ii or lkline vpour is present Sesie instlltion. Mke sure the outoor unit is NOT iretly expose to se wins. This is to prevent orrosion use y high levels o slt in the ir, whih might shorten the lie o the unit. eteriortion o the opertionl pity; isruption o opertion ue to erese o low pressure or inrese o high pressure; roken n (i strong win lows ontinuously on the n, it my strt rotting very st, until it reks). It is reommene to instll le plte when the ir outlet is expose to win. Turn the ir outlet sie towrs the uiling's wll, ene or sreen. Mke sure there is enough instlltion spe Set the ir outlet sie t right ngle to the iretion o the win. Instll the outoor unit wy rom iret se wins. Exmple: Behin the uiling. Instller n user reerene guie 10 I the outoor unit is expose to iret se wins, instll winreker. Height o winreker 1.5 height o outoor unit Min the servie spe requirements when instlling the winreker. Se win Builing Outoor unit Winreker Strong wins ( 18 km/h) lowing ginst the outoor unit s ir outlet uses short iruit (sution o ishrge ir). This my result in: Previling win iretion Air outlet Aitionl instlltion site requirements o the outoor unit in ol limtes Protet the outoor unit ginst iret snowll n tke re tht the outoor unit is NEVER snowe up. Snow over or she Peestl (minimum height = 150 mm) Air-oole rerigertion onensing unit

11 5 Preprtion Previling win iretion Air outlet D When there re no smller room ivisions: Seuring sety ginst rerigernt leks Aout sety ginst rerigernt leks The instller n system speilist shll seure sety ginst lekge oring to lol regultions or stnrs. The ollowing stnrs my e pplile i lol regultions re not ville. This system uses R410A s rerigernt. R410A itsel is n entirely se non-toxi, non-omustile rerigernt. Nevertheless re must e tken to ensure tht the system is instlle in room whih is suiiently lrge. This ssures tht the mximum onentrtion level o rerigernt gs is not exeee, in the unlikely event o mjor lek in the system n this in orne to the lol pplile regultions n stnrs. Aout the mximum onentrtion level E When there is room ivision tht hs n opening suiiently lrge to permit ree ir low. The mximum hrge o rerigernt n the lultion o the mximum onentrtion o rerigernt is iretly relte to the humnly oupie spe in to whih it oul lek. The unit o mesurement o the onentrtion is kg/m 3 (the weight in kg o the rerigernt gs in 1 m 3 volume o the oupie spe). Compline to the lol pplile regultions n stnrs or the mximum llowle onentrtion level is require. Aoring to the pproprite Europen Stnr, the mximum llowe onentrtion level o rerigernt to humnly spe or R410A is limite to 0.44 kg/m 3. Diretion o the rerigernt low Room where rerigernt lek hs ourre (outlow o ll the rerigernt rom the system) Py speil ttention to ples, suh s sements et., where rerigernt n sty, sine rerigernt is hevier thn ir. To hek the mximum onentrtion level Chek the mximum onentrtion level in orne with steps 1 to 4 elow n tke whtever tion is neessry to omply. 1 Clulte the mount o rerigernt (kg) hrge to eh system seprtely. Formul A B C A+B=C Amount o rerigernt in single unit system (mount o rerigernt with whih the system is hrge eore leving the tory) Aitionl hrging mount (mount o rerigernt e lolly) Totl mount o rerigernt (kg) in the system Where single rerigernt ility is ivie into 2 entirely inepenent rerigernt systems, use the mount o rerigernt with whih eh seprte system is hrge. 2 Clulte the volume o the room (m 3 ) where the inoor unit is instlle. In se suh s the ollowing, lulte the volume o (D), (E) s single room or s the smllest room. Opening etween the rooms. In se there is oor the openings ove n elow the oor eh must e equivlent in size to 0.15% or more o the loor re. Room ivision 3 Clulte the rerigernt ensity using the results o the lultions in steps 1 n 2 ove. I the result o the ove lultion exees the mximum onentrtion level, ventiltion opening to the jent room shll e me. Formul F G F/G H Totl volume o rerigernt in the rerigernt system Size (m 3 ) o smllest room in whih there is n inoor unit instlle H Mximum onentrtion level (kg/m 3 ) 4 Clulte the rerigernt ensity tking the volume o the room where the inoor unit is instlle n the jent room. Instll ventiltion openings in the oor o jent rooms until the rerigernt ensity is smller thn the mximum onentrtion level. 5.3 Prepring rerigernt piping Aout reusing existing piping In some ses you my reuse existing piping, in other ses not. Reuse not llowe You my not reuse existing piping in the ollowing ses: When the ompressor in the ol instlltion h prolems (exmple: rekown). Possile onsequene: oxiise oolnt oil, sle resiue n other verse eets. When the inoor n outoor units were isonnete rom the piping or long time. Possile onsequene: wter n irt in the piping. When the opper piping is orroe. Reuse llowe In other ses thn ove, you my reuse existing piping ut keep the ollowing in min: Air-oole rerigertion onensing unit Instller n user reerene guie 11

12 5 Preprtion Item Piping imeter Piping mteril Piping length n height ierene Piping insultion Wele onnetions Clening piping Desription Must omply with requirements. See "5.3.2 Rerigernt piping requirements" on pge 12. I eteriorte, must e reple. Must omply with requirements. See "6.6 To insulte the rerigernt piping" on pge 21. Must e heke or gs leks. I the ol onensing unit i NOT use the sme rerigernt (R410A) n the sme oil (FVC68D) s the new one, you must len the piping to remove ny resiue Rerigernt piping requirements Also re the preutions n requirements in the "Generl sety preutions" hpter. The rerigernt R410A requires strit utions or keeping the system len, ry n tight. Clen n ry: oreign mterils (inluing minerl oils or moisture) shoul e prevente rom getting mixe into the system. Tight: R410A oes not ontin ny hlorine, oes not estroy the ozone lyer, n oes not reue erth's protetion ginst hrmul ultrviolet rition. R410A n ontriute slightly to the greenhouse eet i it is relese. Thereore py speil ttention to hek the tightness o the instlltion. The piping n other pressure-ontining prts shll e suitle or rerigernt. Use phosphori i eoxiise semless opper or rerigernt. Foreign mterils insie pipes (inluing oils or rition) must e 30 mg/10 m Rerigernt piping mteril Piping mteril: Phosphori i eoxiise semless opper. Piping temper gre n thikness: Outer imeter (Ø) 6.4 mm (1/4") 9.5 mm (3/8") 12.7 mm (1/2") Temper gre Annele (O) Thikness (t) () 0.80 mm 15.9 mm (5/8") Annele (O) 0.99 mm 19.1 mm (3/4") Hl hr (1/2H) 0.80 mm () Depening on the pplile legisltion n the unit's mximum working pressure (see "PS High" on the unit nme plte), lrger piping thikness might e require To selet the piping size Determine the proper size using the ollowing tles n reerene igure (only or inition). Ø t H 1 A F B E e C D1 1 D2 2 1 Outoor unit 2 Inoor unit (Showse) 3 Inoor unit (Blower oil) A~F Liqui piping ~ Gs piping H Height ierene outoor-inoor In se the require pipe sizes (inh sizes) re not ville, it is lso llowe to use other imeters (mm sizes), tken the ollowing into ount: Selet the pipe size nerest to the require size. Use the suitle pters or the hnge-over rom inh to mm pipes (iel supply). The itionl rerigernt lultion hs to e juste s mentione in "6.7.3 To etermine the itionl rerigernt mount" on pge 22. A/: Piping etween outoor unit n piping rnhing Liqui piping Gs piping () () Ø9.5 mm () Ø19.1 mm () Sme imeter s the onnetion on the outoor unit. Use the essory piping to pt the imeter o the outoor unit stop vlve (Ø15.9 mm) to tht o the iel piping (Ø19.1 mm). B+C/+: Piping etween piping rnhing Use imeters epening on the totl pity o the inoor units onnete ownstrem. LRMEQ3+4 Cpity () Piping outer imeter Liqui piping <4.0 kw Ø6.4 mm 4.0 x<8.4 kw Ø9.5 mm Gs piping <1.0 kw Ø9.5 mm () 1.0 x<6.0 kw 6.0 x<8.4 kw Ø12.7 mm Ø15.9 mm For showses, pity is lulte t evporting temperture 10 C. For lower oils, pity is lulte t temperture ierene (= evporting temperture room temperture) o 10 C. LRLEQ3+4 Cpity () Piping outer imeter Liqui piping Ø6.4 mm Gs piping <2.3 kw Ø12.7 mm () 2.3 x<3.62 kw Ø15.9 mm For showses, pity is lulte t evporting temperture 35 C. For lower oils, pity is lulte t temperture ierene (= evporting temperture room temperture) o 10 C. Instller n user reerene guie 12 Air-oole rerigertion onensing unit

13 5 Preprtion D~F/~: Piping etween piping rnhing n inoor unit Use the sme imeters s the onnetions (liqui, gs) on the inoor units. I only 1 inoor unit is onnete to the outoor unit, n the onnetions on the outoor unit re ierent rom those on the inoor unit, then use the sme piping imeter s the onnetions on the outoor unit, n instll suitle pters s ner to the inoor unit s possile To selet rerigernt rnh kits For rerigernt piping rnhing, it is llowe to use T-joints, Y-joints, renet joints, n renet heers. It is possile to use rerigernt rnhing option kit rom the tle elow. Renet heer () Renet joint () Desription () () KHRQ22M29H KHRQ22M20T KHRQ22M29T9 Moel nme Do NOT onnet 2 or more heers in series. For the gs sie hoose the renet heer so tht the imeter o the heer is equl to the min piping imeter or equl to one size-up o the min piping imeter. Choose the renet joint so tht the inoming n outgoing piping imeters mth with one o the ville imeters o the renet joint. For more inormtion, see "5.3.3 Rerigernt piping mteril" on pge 12 n "5.3.4 To selet the piping size" on pge 12. Mximum 8 rnhes n e onnete to heer Rerigernt piping length n height ierene The piping lengths n height ierenes must omply with the ollowing requirements. (see exmple in "5.3.4 To selet the piping size" on pge 12) Requirement Mximum tul piping length Exmple: +++2 Limit Mximum totl piping length Exmple: e+ Limit Mximum length irst rnh kit-inoor unit Exmple: ++2 Limit Mximum height ierene outoorinoor Outoor higher thn inoor Exmple: H Limit Outoor lower thn inoor Mximum height ierene inoor-inoor To selet the expnsion vlve Limit 50 m 80 m 30 m 20 m 10 m 5 m This unit hs lrger suooling rtio or the liqui rerigernt ompre to units without suooling mehnism, s the liqui rerigernt is eing oole y oule tue het exhnger (suooling rtio = onensing temperture liqui rerigernt temperture t outoor unit outlet). When seleting n expnsion vlve or the lo oring to the tehnil inormtion o the expnsion vlve mnuturer, tke into ount the suooling rtio (K) or the liqui rerigernt in the tle elow. For LRMEQ3+4 T Suooling rtio (K) Te 20 C 15 C 10 C 5 C 0 C 5 C 20 C C C C C C C C For LRLEQ3+4 T Suooling rtio (K) Te 45 C 40 C 35 C 30 C 25 C 20 C 20 C C C C C C C C Prepring eletril wiring Sety evie requirements Power supply The power supply must e protete with the require sety evies, i.e. min swith, slow low use on eh phse n n erth lekge protetor in orne with the pplile legisltion. Seletion n sizing o the wiring shoul e one in orne with the pplile legisltion se on the inormtion mentione in the tle elow. Moel LRMEQ3 + LRLEQ3 LRMEQ4 + LRLEQ4 Minimum iruit mpity Reommene uses Power supply 6.5 A 16 A 3N~ 50 Hz 9.1 A V Remote opertion swith, low-noise swith n output signls wiring Remote opertion swith. The unit is tory-equippe with n opertion swith with whih you n turn unit opertion ON/OFF. I you wnt to remotely turn outoor unit opertion ON/OFF, remote opertion swith is require. Use voltge-ree ontt or mirourrent ( 1 ma, 12 V DC). Connet to X2M/C+D, n set to "Remote ". Air-oole rerigertion onensing unit Instller n user reerene guie 13

14 6 Instlltion Finishing the inoor instlltion. For instlltion o the inoor unit (mounting the inoor unit, onneting the rerigernt piping to the inoor unit, onneting the eletril wiring to the inoor unit ), see the instlltion mnul o the inoor unit. OFF R N O EM O TE The opertion swith is lote in the swithox (see illustrtion elow). 6.2 Opening the units The opertion swith n e set to the ollowing three positions: Aout opening the units Opertion swith setting Funtion At ertin times, you hve to open the unit. Exmple: OFF Unit opertion turne OFF ON Unit opertion turne ON Remote Unit ontrolle (ON/OFF) with remote opertion swith When onneting the rerigernt piping When onneting the eletril wiring When mintining or serviing the unit DANGER: RISK OF ELECTROCUTION Low-noise swith. I you wnt to remotely turn ON/OFF low-noise opertion (see setting [2 18]), you must instll low-noise swith. Use voltge-ree ontt or mirourrent ( 1 ma, 12 V DC). Connet to X2M/A+B. Do NOT leve the unit unttene when the servie over is remove To open the outoor unit DANGER: RISK OF ELECTROCUTION Output signls. The outoor unit is provie with terminl (X3M) tht n output 4 ierent signls. The signl is 220~240 V AC. The mximum lo or ll signls is 0.5 A. The unit outputs signl in the ollowing situtions: DANGER: RISK OF BURNING C/C1: ution signl onnetion reommene when n error ours tht oes not stop unit opertion. C/W1: wrning signl onnetion reommene when n error ours tht uses unit opertion to stop. R/P2: run signl onnetion optionl when the ompressor is running. 2 P1/P2: opertion signl onnetion mntory when the inoor unit solenoi vlve is eing ontrolle. Wiring 1 1 Shethe le (2 wires) Vinyl ors 0.75~1.25 mm² Mximum wiring length m Instlltion 6.3 Mounting the outoor unit Aout mounting the outoor unit Typil worklow Mounting the outoor unit typilly onsists o the ollowing stges: 6.1 Overview: Instlltion This hpter esries wht you hve to o n know on-site to instll the system. Typil worklow Instlltion typilly onsists o the ollowing stges: Mounting the outoor unit. Mounting the inoor units Proviing the instlltion struture. Instlling the outoor unit. Preventing the unit rom lling over. Proteting the unit ginst snow n win y instlling snow over n le pltes. See "Prepring instlltion site" in "5 Preprtion" on pge Preutions when mounting the outoor unit Conneting the rerigernt piping. Cheking the rerigernt piping. Also re the preutions n requirements in the ollowing hpters: Chrging rerigernt. Conneting the eletril wiring. Generl sety preutions Finishing the outoor instlltion. Preprtion Instller n user reerene guie 14 Air-oole rerigertion onensing unit

15 6 Instlltion To provie the instlltion struture Chek the strength n level o the instlltion groun so tht the unit will not use ny operting virtion or noise. Fix the unit seurely y mens o ountion olts in orne with the ountion rwing. Prepre 4 sets o nhor olts, nuts n wshers (iel supply) s ollows: To prevent the outoor unit rom lling over In se the unit is instlle in ples where strong win n tilt the unit, tke ollowing mesure: 1 Prepre 2 les s inite in the ollowing illustrtion (iel supply). 2 Ple the 2 les over the outoor unit. 3 Insert ruer sheet etween the les n the outoor unit to prevent the les rom srthing the pint (iel supply). 4 Atth the ens o the les n tighten them. 0 4 M >150 ) (3 (mm) 6.4 Conneting the rerigernt piping Aout onneting the rerigernt piping Mke sure not to over the rin holes. Beore onneting the rerigernt piping The reommene height o the upper protruing prt o the olts is 20 mm. Mke sure the outoor n inoor units re mounte. Typil worklow 20 Conneting the rerigernt piping involves: Conneting the rerigernt piping to the outoor unit Conneting the ryer n sight glss Conneting rerigernt piping rnhing Fix the outoor unit to the ountion olts using nuts with resin wshers (). I the oting on the stening re is strippe o, the nuts rust esily. Conneting the rerigernt piping to the inoor units (see the instlltion mnul o the inoor units) Insulting the rerigernt piping Keeping in min the guielines or: Pipe ening Brzing To instll the outoor unit Using the stop vlves Removing pinhe pipes Preutions when onneting the rerigernt piping 4 M12 Also re the preutions n requirements in the ollowing hpters: Generl sety preutions Preprtion DANGER: RISK OF BURNING Air-oole rerigertion onensing unit Instller n user reerene guie 15

16 6 Instlltion Tke the ollowing preutions on rerigernt piping into ount: Avoi nything ut the esignte rerigernt to get mixe into the rerigernt yle (e.g. ir). Only use R410A when ing rerigernt. Only use instlltion tools (e.g. mniol guge set) tht re exlusively use or R410A instlltions to withstn the pressure n to prevent oreign mterils (e.g. minerl oils n moisture) rom mixing into the system. Protet the piping s esrie in the ollowing tle to prevent irt, liqui or ust rom entering the piping. Use ution when pssing opper tues through wlls. Do NOT use lux when rzing opper-to-opper rerigernt piping. Use phosphor opper rzing iller lloy (BCuP), whih oes not require lux. Flux hs n extremely hrmul inluene on rerigernt piping systems. For instne, i hlorine se lux is use, it will use pipe orrosion or, in prtiulr, i the lux ontins luorine, it will eteriorte the rerigernt oil Using the stop vlve n servie port To hnle the stop vlve Mke sure to keep ll stop vlves open uring opertion. The stop vlves re tory lose. The igure elow shows the nme o eh prt require in hnling the stop vlve. Unit Instlltion perio Protetion metho Outoor unit >1 month Pinh the pipe Inoor unit <1 month Pinh or tpe the pipe Regrless o the perio Do NOT open the rerigernt stop vlve eore heking the rerigernt piping. When you nee to hrge itionl rerigernt it is reommene to open the rerigernt stop vlve ter hrging. Servie port n servie port over Stop vlve Fiel piping onnetion Stop vlve over Pipe ening guielines Use pipe ener or ening. All pipe ens shoul e s gentle s possile (ening rius shoul e 30~40 mm or lrger) To rze the pipe en Preutions when onneting iel piping. A rzing mteril s shown in the igure. Ø When rzing, low through with nitrogen to prevent retion o lrge quntities o oxiise ilm on the insie o the piping. This ilm versely ets vlves n ompressors in the rerigerting system n prevents proper opertion. e e Servie port Stop vlve over Hexgon hole Sht Sel In ition to gs n liqui stop vlve, the outoor unit hs two mintenne stop vlves. When onneting the rerigernt piping to the outoor unit, o NOT operte the mintenne stop vlves. The tory setting or these vlves is "open". When operting the unit, lwys leve these vlves in the open position. Operting the unit with the vlves in the lose position my use the ompressor to il. Set the nitrogen pressure to 20 kp (0.2 r) (just enough so it n e elt on the skin) with pressure-reuing vlve. e e Rerigernt piping Prt to e rze Tping Mnul vlve Pressure-reuing vlve Nitrogen Do NOT use nti-oxints when rzing pipe joints. Resiue n log pipes n rek equipment. Mintenne stop vlve To open the stop vlve 1 Remove the stop vlve over. Instller n user reerene guie 16 Air-oole rerigertion onensing unit

17 6 Instlltion 2 Insert hexgon wrenh into the stop vlve n turn the stop vlve ounterlokwise. Cover (o NOT pply thre-loking lui) Seling prt (o NOT pply thre-loking lui) Srew thre with thre-loking lui To hnle the servie port Alwys use hrge hose equippe with vlve epressor pin, sine the servie port is Shrer type vlve. Ater hnling the servie port, mke sure to tighten the servie port over seurely. For the tightening torque, reer to the tle elow. Chek or rerigernt leks ter tightening the servie port over. 3 When the stop vlve nnot e turne ny urther, stop turning. 4 Instll the stop vlve over. Result: The vlve is now open. To lose the stop vlve 1 Remove the stop vlve over. 2 Insert hexgon wrenh into the stop vlve n turn the stop vlve lokwise. Thre-loking lui. Beore retthing the servie port over, pply thre-loking lui to the srew thre (NOT to the over or seling prt). Otherwise, onenstion wter might enter n reeze. Possile onsequene: Deormtion, rerigernt lekge n ompressor mluntion. Cover (o NOT pply thre-loking lui) Seling prt (o NOT pply thre-loking lui) Srew thre with thre-loking lui Tightening torques 3 When the stop vlve nnot e turne ny urther, stop turning. 4 Instll the stop vlve over. Result: The vlve is now lose. To hnle the stop vlve over The stop vlve over is sele where inite y the rrow. Do NOT mge it. Ater hnling the stop vlve, tighten the stop vlve over seurely, n hek or rerigernt leks. For the tightening torque, reer to the tle elow. Stop vlve size (mm) Tightening torque N m (turn lokwise to lose) Vlve oy Hexgonl wrenh Sht Cp (vlve li) Servie port Ø ~6.6 4 mm 13.5~ ~13.9 Ø ~ mm 22.5~ To remove the pinhe pipes Any gs or oil remining insie the stop vlve my low o the pinhe piping. Filure to oserve the instrutions in proeure elow properly my result in property mge or personl injury, whih my e serious epening on the irumstnes. Use the ollowing proeure to remove the pinhe piping: 1 Remove the vlve over n mke sure tht the stop vlves re ully lose. Thre-loking lui. Beore retthing the stop vlve over, pply thre-loking lui to the srew thre (NOT to the over or seling prt). Otherwise, onenstion wter might enter n reeze. Possile onsequene: Deormtion, rerigernt lekge n ompressor mluntion. Servie port n servie port over Stop vlve Fiel piping onnetion Stop vlve over Air-oole rerigertion onensing unit Instller n user reerene guie 17

18 6 Instlltion 2 Connet the vuuming/reovery unit through mniol to the servie port o ll stop vlves. p< p> A B g Where/how Instll the sight glss eore the ryer, s ner to the outoor unit s possile. Instll horizontlly. N2 R410A e e g A B Pressure reuing vlve Nitrogen Weighing sles Rerigernt R410A tnk (siphon system) Vuum pump Liqui line stop vlve Gs line stop vlve Vlve A Vlve B 3 Reover gs n oil rom the pinhe piping y using reovery unit. CAUTION Do not vent gses into the tmosphere. 4 When ll gs n oil is reovere rom the pinhe piping, isonnet the hrge hose n lose the servie ports 5 Cut o the lower prt o the gs n liqui stop vlve pipes long the lk line. Use n pproprite tool (e.g. pipe utter, pir o nippers). When rzing Sight glss Dryer Follow the rzing instrutions in the sight glss mnul Guielines when instlling ryer Do NOT operte the unit without ryer instlle. Possile onsequene: Equipment mluntion. Instll ryer on the liqui piping: Dryer type Where/how 80 g (100% moleulr sieve equivlent) (DML083/DML083S: Dnoss me) Instll the ryer ter the sight glss, s ner to the outoor unit s possile. Instll horizontlly. Never remove the pinhe piping y rzing. Any gs or oil remining insie the stop vlve my low o the pinhe piping. 6 Wit until ll oil hs rippe out eore ontinuing with the onnetion o the iel piping in se the reovery ws not omplete Guielines when instlling sight glss Instll sight glss on the liqui piping: Dimeter 9.5 mm When rzing Flow iretion Sight glss Dryer Follow the rzing instrutions in the ryer mnul. Remove the ryer p immeitely eore rzing (to prevent sorption o irorne moisture). I ryer pint urnt uring rzing, repir it. For repir pint etils, ontt the mnuturer. I the ryer speiies low iretion, instll oringly To onnet the rerigernt piping to the outoor unit Be sure to use the supplie essory pipes when rrying out piping work in the iel. Be sure tht the iel instlle piping oes not touh other pipes, the ottom pnel or sie pnel. Espeilly or the ottom n sie onnetion, e sure to protet the piping with suitle insultion, to prevent it rom oming into ontt with the sing. 1 Do the ollowing: Remove the servie over () with srew (). Remove the piping intke plte () with srew (). Instller n user reerene guie 18 Air-oole rerigertion onensing unit