INSTALLATION & SERVICE MANUAL Wall Mount Mini Split Systems. M3 Single-Zone Cooling and Heat Pump W or W/O Heater

Transcription

1 INSTALLATION & SERVICE MANUAL Wall Munt Mini Split Systems M3 Single-Zne Cling and Heat Pump W r W/O Heater (This Installatin Instructin is Gd fr Mini Split Wall Munt Prduct Line f Different Brands Made by YMGI Grup-YMGI, YMGI Prducts, and Others Claimed by YMGI Grup, POB 1559, O'Falln, MO, USA-Check with inf@ymgigrup.cm r sales@ymgigrup.cm) Literature Part N: Lit-WMMS Fr WMMS Series f Prduct 09 t 60K Btu/h Single-Zne (Cling, Heat Pump W r W/O Ele. Heater) Subject t Cntinuus Engineering Imprvement withut Prir Ntice. This prduct is designed and manufactured free frm defects in material and wrkmanship under the nrmal use and maintenance. Installatin, peratin, maintenance and service shall fllw prfessinal practices fr regular cling and heating equipment, NEC, State, City r Lcal Cdes and related manuals frm us. Otherwise, damage t equipment r prperty even injury t peple may ccur. Installer: Currently licensed HVAC installer nly, Read this manual befre installatin. Sign n the warranty registratin card. User: Keep this manual fr future maintenance and service use. Servicer: Use this manual fr service reference. Literature Part N: LIT-WMMS-II

2 CONTENTS VERY IMPORTANT NOTES FOR END USERS (CUSTOMERS) AND INSTALLATION BEFORE INSTALLATION IDENTIFY COMPONENTS CONNECTION OF WIRES-SINGLE ZONE CONNECTION OF WIRES GET READY FOR INSTALLATION OPERATING TEMPERATURE RANGES INDOOR UNIT-MAJOR COMPONENTS REMOTE CONTROL ATTENTIONS-MUST READ AND FOLLOW THE FOLLOWING, PRIOR TO CONNECTING REFRIGERANT LINES BRIEF INTRODUCTION TO MINI SPLIT WALL MOUNT SYSTEM IMPORTANT NOTES IMPORTANT NOTES FOR UNIT OPERATION ABMIENT & SIZING CONTROL SPECIFICATION INTRODUCTION INSTALLATION POSITIONS FOR OUTDOOR UNIT HEIGHT LIMITS OF INDOOR AND OUTDOOR UNITS DURING INSTALLATION-INDOOR UNIT INSTALLATION-OUTDOOR UNIT WIRING OUTDOOR UNIT CONNECT REFRIGERANT PIPES BETWEEN INDOOR AND OUTDOOR UNITS PIPING GUIDE INSTALLATION ACCESSORIES VACUUM AND LEAKAGE CHECK SYSTEM INSPECTION AND TRIAL RUNNING CHECK AFTER INSTALLATION AND TEST OPERATION DURING INSTALLATION USER NOTES AND SERVICE LOG LIMITED PRODUCT WARRANTY REGISTRATION CARD WARRANTY AND TECH. SUPPORT USER NOTES AND SERVICE LOG All Units Shall Be Installed by Experienced r Licensed Cntractr Or Technician. Read Manuals befre Installatin. Fllwing NEC, State and Lcal Cdes and Installatin Instructins f All Units, Otherwise Unit Warranty Will Be Vid and Serius Damage T Peple Or Prperty May Be Caused. YMGI Grup Shall NOT Take Any Respnsibilities fr Any Damage r Lss Due t D-It-Yurself(DIY) self-installatin and ther Imprper Installatin r Operatin r Natural Disaster. Dn't Supply Pwer until All Wiring and Tubing and Checking is Cmpleted. Grund the Unit Fllwing Instructins and NEC, State and Lcal Cdes. Cnnect All Wiring Securely. Lse Wire r Other Bad Cntact May Cause Arc r Overheating and Fire Hazard. End User Technician Cntact f Technical Supprt-Manufacturer Tll Free Number: x techsp@ymgigrup.cm (End user needs t cntact installatin r service technician t check the unit, befre the technicians cntact manufacturer technical supprt-straight technical cmmunicatin) VERY IMPORTANT NOTES FOR END USERS (CUSTOMERS) AND INSTALLATION GOOD UNITS CAN MALFUNCTION, MAY NOT WORK CORRECTLY OR PROPERLY, AS DESIGNED AND MANUFACTURED, IF NOT INSTALLED CORRECTLY OR PROPERLY. MUST DO IT RIGHT ALL THE TIME, ESPECIALLY FROM THE VERY BEGINNING. CUSTOMER DO-IT-YOURSELF (DIY) INSTALLATION CAUSED AND/OR MAY CAUSE TROUBLE, IN DIFFERENT FORMATS, TO THE UNIT, YOUR COMFORT EXPECTATION, YOUR HEALTH. HANDY MAN OR SMART PEOPLE OR EVEN SOME PROFESSIONALS MAKE MISTAKE SOMEWHERE OR SOMETIMES. DON'T TRY TO SAVE MONEY BY DIY, HANDLE THE INSTALLATION TO THE CURRENTLY LICENSED PROFESSIONALS, SINCE THEY WILL TAKE CARE OF YOUR UNITS AND YOUR COMFORT. DIY INSTALLATION MAY SAVE YOUR SOME MONEY AT THE FRONT, BUT WILL COST YOU MORE AND BRING HEADACHE, DOWN THE ROAD. YMGI DOESN'T AGREE, DOESN'T ALLOW, DOESN'T WARRANT, DOESN'T ENSURE, DOESN'T ENCOURAGE, DOESN'T RECOMMEND DIY INSTALLATION, UNLESS YMGI STATES DIY INSTALLATION IS ALLOWED, IN WRITING. CUSTOMERS WILL LOSE FACTORY WARRANTY ON DIY INSTALLED HVAC PRODUCTS AND TAKE THEIR RISKS FOR DIY INSTALLATION. DON'T PAY THE CONTRACTOR IN FULL, UNTIL ALL FUNCTIONS OF THE SYSTEM HAVE BEEN CHECKED AND YOU ARE SATISFIED. 8. IT IS THE INSTALLATION CONTRACTOR'S RESPONSIBILITY TO INSTALL AND SERVICE THE SYSTEM TO MAKE SURE THE UNIT WORK CORRECTLY AND PROPERLY OVER THE TIME. YMGI DOESN'T INSTALL NOR SERVICE YOUR UNITS ON BEHALF OF THE INSTALLER. YMGI WILL HELP THE INSTALLER OR SERVICE PROVIDER ANSWERING QUESTIONS AND PROVIDING TECHNICAL SUPPORT. 9. IT IS THE CUSTOMER'S RESPONSIBILITY TO SELECT THE UNIT CORRECTLY (UNIT SIZE, SEER, ELECTRIC POWER, CONTROL, REFRIGERANT, DC OR FIXED SPEED, LOOKING AND OTHERS). 10. IT IS THE CUSTOMER'S DECISION WHAT UNIT TO BUY AND TO INSTALL. PUT DOWN ALL REQUIREMENTS IN WRITING, BEFORE ORDERING. 11. WHO CAN INSTALL THE HAVC PRODUCTS HEREOF: * ONLY LICENSED HVAC CONTRACTOR(S)/TECHNIICIAN(S), WHO KEEPS CURRENTLY VALID LICENSE FOR HEATING AND COOLING EQUIPMENT, SUCH AS AIR CONDITIONER AND HEAT PUMP. * DON'T DO-IT-YOURSELF (DIY) HVAC EQUIPMENT, WHICH IS NOT ALLOWED BY THE LAWS, NOR WARRANTED BY YMGI. 12. IMPORTANT NOTES FOR INSTALLATION * SIZE WIRES AND CIRCUIT BREAKERS CORRECTLY, PER NEC CODES. * READ SPECIFICATION SHEETS OR OTHER MANTERIALS FOR LIMITS OF OPERATING TEMPERATURE RANAGES, PIPING LENGTH, AND PERFORMANCE AT DIFFERENT AMBIENT TEMPERATURES. * READ MANUALS AND CHECK TO MAKE ALL ARE CLEAR BEFORE INSTALLING THE UNITS. * WATCH INSTALLATION AND MAKE SURE THERE ARE NO BUGS LEFT IN YOUR HAVC SYSTEMS. * COVER THE ENDS OF THE INTER-CONNECTING COPPER TUBES BEFORE PULLING THROUGH STRUCTURES TO KEEP FROM DIRTY OR OTHER FOREIGN SUBSTANCES ENTERING THE REFRIGERATION SYSTEM TO CONTAMINATE THE SYSTEM AND DAMAGE THE SYSTEM, DOWN THE ROAD. * VACUUM THE INTERCONNECTING TUBES AND INDOOR UNITS AND CHECK FOR LEAKAGE, BEFORE RELEASING REFRIGERANT FROM OUTDOOR UNIT TO INDOOR UNIT. * TRIAL RUNNING SYSTEMS AND CHECK ALL FUNCTIONS, BEFORE PAYING OR LETTING THE INSTALLER LEAVE THE JOB SITE. * JOT DOWN INSTALLER'S CONTACT INFORMATION AND SERVICE INVOICE/RECIEPT FOR FUTURE QUESTIONS OR CUSTOMER SERVICE. 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3 BEFORE INSTALLATION IDENTIFY COMPONENTS CONNECTION OF WIRES-SINGLE ZONE INDOOR UNIT Air Inlet Air Intake Grilles Temperature Sensr Emergency Switch WIRING AT INDOOR UNIT AND OUTDOOR UNITS * Open the frnt cver panel. * Remve screws frm electrical bx cver and put screws in secured psitin. * Remve screws frm fastener and put screws in secured psitin. * Prepare wires f right size and grade. * Recmmend t use factry-prvided wire/cables. * Cnnected t the terminals fllwing wiring diagrams (terminal r clr matches). * Clamp pwer/cntrl wires t the structure t keep the tensin frm being transmitted t the wire cnnectin. * Replace screws r fasteners back t where they were. AC-09/12K Mdels(110/1/60) Frnt (surface) Panel Wiring Cver G L N 2 AC-09/12/18/24K Mdels (208~230/1/60) Frnt (surface) Panel Wiring Cver G L1 L2 2 Indicating Lamp & Signal Receiving Windw Indr Unit Teminal blck f indr unit (T utdr unit) Indr Unit Teminal blck f indr unit (T utdr unit) Hrizntal Luver Outdr Unit Terminal match Outdr Unit Terminal match G L N L2 G L1 L2 L2 Vertical Luver Air Outlet Air Filter OUTDOOR UNIT Remte Cntrller HP-09/12K Mdels (110/1/60) Frnt (surface) Panel Wiring Cver G L N HP-09/12/18/24K Mdels (208~230/1/60) Frnt (surface) Panel Wiring Cver G L1 L Air Inlet Cnnecting Pipe and Cable Drainage Hse Indr Unit Outdr Unit Teminal blck f indr unit (T utdr unit) Terminal match Defrst Cable Indr Unit Outdr Unit Teminal blck f indr unit (T utdr unit) Terminal match Defrst Cable G L N G L1 L Air Outlet Unit Appearance and Specificatins Are Subject t Change fr Cntinuus Imprvement withut Any Prir Ntice. P3 OF 34 P4 OF 34

4 PIPING AND WIRING SIZES Mdel Liquid/ Gas Line Min/Max. Length/ +/-Elevatin CONNECTION OF WIRES Pwer Wire Discnnect Switch Bx t Outdr Unit Pwer/ Cntrl Wire Outdr t Indr Unit 09K 1/4 & 3/8 15/70//35 L/N/G, 115/1/60, 14AWG Pwer: L/N/G Cntrl: AC-2 HP-2/3/4 20/10 12K 1/4 & 1/2 15/70//35 L/N/G, 115/1/60, 14AWG Pwer: L/N/G Cntrl: AC-2 HP-2/3/4 /10 18K 3/8 & 5/8 15/100/30/50 L1/L2/G, /1/60, 14AWG Pwer: L1/L2/G Cntrl: AC-2 HP-2/3/ K 3/8 & 5/8 15/100/30/50 L1/L2/G, /1/60, 14AWG Pwer: L1/L2/G Cntrl: AC-2 HP-2/3/4 Nte: * The envirnment cnditins must be taken int cnsideratin when the cnnectins f pwer cable are made (such as the ambient temperature, direct expsure t heat/dirext expsure t sunlight). * The specificatins fr the pwer cable refer t the minimum values f the metal cre wires, taking int cnsideratin the vltage lsses, the cre wire f pwer cable must be ne size larger than the specificatins. * The grunding wire must be cnnected t the indr units and utdr units. HVAC Circuit Breaker/Fuse AMP (t Outdr Unit) * The laying f pwer cables must be dne by qualified electricians and cmply with the regulatins f the lcal pwer supply authrities and with the standards f the electric appliance. LIST OF RECOMMENDED TOOL GET READY FOR INSTALLATION Screw driver-phillips-bigger Screw driver-phillips-smaller Cpper tube cutter Cpper tube flare expander Wire stripper Vacuum pump Manifld (R410A) Scissr Plier Wrentch Multiple-purpse meter Tape measure Vacuum Cpper Pipe Indr unit befre Releasing Refrigerant frm Outdr Unit t Indr Unit. GET READY FOR INSTALLATION MISC. ITEMS COMING WITH INDOOR UNIT Munting plate Manuals (User/ Installatin/ Wiring/ Diagram) Remte cntrller 1 Pcs. 1 Set 1 Pcs. Hexagn Allen wrench (Frnt seat t clse, back seat t pen) Service valve 4 Battery 2 Pcs. 5 Drain sput fr utdr drain pain 1 Pcs. 6 Warranty registratin card 1 Pcs. 7 QC Pass 1 Pcs. OPTIONAL ACCESSORIES THAT ARE PACKAGED AND MAY BE SOLD SEPARATELY Installatin kit (cpper line/wire/drain hse & thers) Pwer and cntrl and r intercmmunicatin cable Ft rise r brackets fr utdr unit Line set cvers Wind baffie P5 OF 34 P6 OF 34

5 Recmmended Temperature Ranges-Indr Side Mde Cling Heating Dry Bulb t 105 F (16 t 40.5 C) IMPORTANT NOTES: OPERATING TEMPERATURE RANGES These units are designed fr general T-1 weather cnditins as utlined in the fllwing table: Wet Bulb NA t 86 F (-8 t 30 C) F (-8 t 5 C) Recmmended Temperature Ranges-Outdr Side 1) Wrking temperature ranges listed abve are guaranteed fr units t wrk prperly, thugh these temperature ranges are cnservative. 2) Units may still wrk well ut f the guaranteed wrking temperature ranges, as lng as they are installed prperly and are still in gd cnditins within design envelp. 3) Units are designed fr mild lw temperature AC cling applicatins. Units cme with lw temperature cntrl t prtect agent t lw pressure when running fr AC cling in weather clder than 45 F and warmer than 35 F. In this temperature ranges, units may nt need t add refrigerant and/r jumper at lw pressure switch. If units are t be used fr cling nly belw 35 F, then better t check and add refrigerant and jumper at lw pressure switch. Situatin varies upn indr lad and indr unit installatin cnditins such as TEX type, elevatin vs utdr unit, cpper line set size and length, refrigerant level and leakage level. 4) Units may still wrk HP heating well way belw 17 F, thugh exact temperatures are nt listed. Units will defrst during HP heating mdel in cld weather. Suctin (bigger) pipe shuld be ht and the discharge (smaller) pipe shuld be warm at utdr unit during HP heating mde, if everything is right. 5) Optinal cmpnent Wind Baffle installed at fan discharge side n the cabinet is designed t keep frm cld air blwing int prpeller fan blade against airflw, and s help unit wrk better in bth AC cling and HP heating mde in clder weather ranges. Since utdr units can be installed n the wall r balcny, where is clse t indr unit, at least the fllwing benefits will be brught t cntractrs and custmers: * Indr unit perates much quieter than air diffuser f central air cnditining system. * Stylish design f indr unit adds beauty t rms. * Cnnectin pipe, refrigerant usage is much saved cmpared t installing up-flw cndensing units n the grund and lng cpper/wire lines needed between indr and utdr units. * Cntractr wrk is eased and time is saved. * Efficiency and lifetime f system is increased. Mini Split Wall Munt Systems cme with three types: cling nly and heat pump and heat pump with electric heater. These units can be easily wired. Either indr unit r utdr unit can be used with any matched cmparable utdr unit r indr unit as lng as they have matched size and cntrl. Must refer t electrician befre ding s. Each system is fully tested per rigrus standards at factry. Acustically and thermally balanced design and systematically ptimized system give each unit a healthy birth ff the assembly line with prved quality and reliability. Find the cling/heating lad capacity f the space where the unit will be in service. Select matched WMMS units fr the space. Under sizing r ver sizing equipment is NOT recmmended. Mde Cling Heating Dry Bulb 45 t 115 F (7 t 46.1 C) 17 t 75 F (-8 t 23.8 C) T Cld Nt Cld T Ht Nt Ht Wet Bulb NA F (-8 t 2 C) INDOOR UNIT-MAJOR COMPONENTS Since utdr units can be installed n the wall r balcny, where is clse t indr unit, at least the fllwing benefits will be brught t cntractrs and custmers: * Indr unit perates much quieter than air diffuser f central air cnditining system. * Stylish design f indr unit adds beauty t rms. * Cnnectin pipe, refrigerant usage is much saved cmpared t installing up-flw cndensing units n the grund and lng cpper/wire lines needed between indr and utdr units. * Cntractr wrk is eased and time is saved. * Efficiency and lifetime f system is increased. Mini Split Wall Munt Systems cme with three types: cling nly and heat pump and heat pump with electric heater. These units can be easily wired. Either indr unit r utdr unit can be used with any matched cmparable utdr unit r indr unit as lng as they have matched size and cntrl. Must refer t electrician befre ding s. Each system is fully tested per rigrus standards at factry. Acustically and thermally balanced design and systematically ptimized system give each unit a healthy birth ff the assembly line with prved quality and reliability. Find the cling/heating lad capacity f the space where the unit will be in service. Select matched WMMS units fr the space. Under sizing r ver sizing equipment is NOT recmmended. INDOOR UNIT-MAJOR COMPONENTS Air Filter Frnt Panel r Faceplate Air Inlets Display Manual Luvers (Side t Side) Aut-Directinal Luvers (Up and Dwn) Test/Reset Switch Remte Cntrl (r Optinal Wall Thermstat) P7 OF 34 P8 OF 34

6 REMOTE CONTROL ATTENTIONS-MUST READ AND FOLLOW THE FOLLOWING, PRIOR TO CONNECTING REFRIGERANT LINES LED DISPLAY SLEEP BUTTON LED BUTTON ADJUSTMENT BUTTON SWING BUTTON MODE BUTTON SET BUTTON TIMER BUTTON 1. Metering device is installed in this utdr cndensing unit, n ther metering device needs t be field-installed anywhere else. 2. One refrigerant filter/strainer is installed in the utdr unit, n ther filter/strainer needs t be field-installed anywhere else, therwise it may cause extra pressure drp and even system under-perfrmance r ther prblems. 3. If a refrigerant drier is t be field-installed, must be f enugh size and crrect flw-directin, fllwing drier manufacturer's instructin. Fail t d s may cause unit prblems. 4. Must check the indr unit fr leakage by checking if the indr unit still hlds the pressurized charge, by breaking the seal left at indr refrigerant cpper line cnnectin, befre cnnecting it t the inter-cnnecting refrigerant cpper lines. If fr sme reasn the break is made befre yu check it, must pressurize it and check fr leakage. 5. Prfessinally cnduct general refrigeratin practice t cnnect cpper lines and seal-tight crrectly and prperly. Must insulate and secure bth discharge and suctin cpper lines. 6. Must keep the tw valves at utdr cndensing unit frnt-seated (clsed), and pressurize the refrigerant flw cavities between the inter-cnnecting cpper lines and indr unit t check leakage, befre mve n t cnduct vacuum leakage test (20-30 minutes under 500 micrns recmmended). 7. Then back-seat (pen) the tw valves t release refrigerant factry-precharged in the utdr cndensing unit, int the inter-cnnecting refrigerant cpper lines and indr unit, ONLY if the system leakage is checked and passed (pressurizatin and vacuum check). 8. Must check all thermal functins at the final stage f installatin. Bth liquid and gas lines at utdr cndensing unit valves, shuld be cld at cling mde, and ht at heat pump mde. If nt cld r ht (E4 r E5 errr cde may shw up at indr unit t shut ff the system and warn fr system checking, must cntact installer r service prvider t check refrigerant charge and/r ther items, accrdingly. Hw cld r hw ht it needs t be, varies upn ambient temperature, refrigerant charge/pipe length, indr unit cnditins and s n. 9. Adjust/check the refrigerant charge per pressure/temperature (super-heat r sub-cling) at the service valves, r length f cpper pipes, fllwing the pressure-ambient temperature chart r ' breaking pint rule as factry-recmmended in the installatin manual. FAN SPEED BUTTON LIGHT WAVE BUTTON ELECTRIC HEATING BUTTON IONIZER BUTTON RUN/STOP BUTTON AUTO CLEAR BUTTON FRESH AIR BUTTON P9 OF 34 P10 OF 34

7 BRIEF INTRODUCTION TO MINI SPLIT WALL MOUNT SYSTEM Mini Split Wall Munt Systems are designed fr high perfrmance, easy installatin and service. Each system cnsists f ne r several indr units and ne utdr unit, which are cnnected by ne set r several multiple sets f intercnnectin refrigerant pipes and electric wires. SAFETY WARNINGS IMPORTANT NOTES READ THESE SAFETY WARNINGS COMPLETELY PRIOR TO ANY USE. As shwn in the fllwing sample picture f utdr unit, air is drawn thrugh the cil frm the rear side and then discharged frm the frnt side. In cling mde, air passing thrugh cil is heated; in heating mde, air passing thrugh cil is cled. Grund cnnectin Discnnect the plug Frbidden Imperative Air In These precautins are essential and must be strictly bserved. DO NOT draw n the pwer crd r refrigeratin lines. Install them in secured psitins. Plastic cver f line set is recmmended. DO NOT blw the cld air directly twards peple fr prlnged perid. Otherwise, peple may get cld. Air Out Sample Wall Munt Mini Split System (Fr Cntinuus Engineering Imprvement and Varius Marketing Needs and Actual Part Availability Reasn, Unit Appearance Subject t Change r Update Cntinuusly withut Prir Ntice) Outdr unit(s) prvides the electrical and thermal pwer fr the whle system. Electrical and thermal cmpnents such as cmpressrs and mtrs and heat exchange cils and thers, are incrprated int the cabinet in an ptimized rder. They can be either hung n the wall r installed n the grund. Once stacking r bracket kit is used, sme utdr units can be stacked 2 r 3 units high, upn unit size and applicatins. Air is discharged hrizntally, quietly and smthly. These units are perfect fit in lcatins where installatin and applicatins f general up-flw cndensing units are limited, such as apartments, cnds, lfts, multi-families and high-rise buildings and thers named r unnamed. Indr unit(s) delivers the thermal and acustical cmfrt t the rms. Air is drawn thrugh the cil frm the frnt r tpside and then discharged frm the bttm. In cling mde, air passing thrugh cil is cled; in heating mde, air passing thrugh cil is heated. Air is filtered r treated by the built in mechanism (washable r enzyme equipped r electrstatic pwered filter, varies frm mdel t mdel), befre being delivered int the rm, with mre than enugh cmfrt and care, at a wide angle (swing r nt, varies frm mdel t mdel). Applicatin Samples f Wall Munt Mini Split Systems NOTES: Since ductless system is nt designed t incrprate r use with ducted return r discharge tunnels, ne single-zne unit SHALL NOT be used t take care f the cling r heating lad f mre than ne-stry rm. Several single-zne ductless systems r multiple-zne ductless systems shall be prper in this regard. These units are designed fr applicatins at: * Residential * Light cmmercial Apartments Office Buildings Hmes * Institutinal * Industrial * Cmmercial * Hspital DO NOT use smaller than enugh wires. D nt put several circuits t ne breaker. Dn't use smaller than enugh circuit breakers. Otherwise pwer failure r fire may be caused. DO NOT pull n the pwer crd r refrigeratin lines. Install them in a secured psitin. A line set plastic cver is recmmended. DO NOT install the unit in places where there is expsure t flammable materials r gas leakage. DO NOT use wire r circuit breakers that d nt meet electrical safety standards. Several circuits cannt be cnnected t ne breaker. DO NOT wire r pen the unit while it is running. Make sure t shut ff all circuits prir t inspecting r servicing the unit. DO NOT install unit in a damp laundry rm r near flammable gas. All units must be prtected by certified electrical circuit breakers and in accrdance with all safety cdes. DO NOT use the unit in cl r dry mde fr prlnged perids where humidity is higher than 80%. DO NOT wire r pen unit while unit is running. Sparks r fire may ccur. It may cause a shck t peple. DO NOT install the indr unit clse t cking surfaces r ventilatin systems. Pr placement culd inhibit peak perfrmance. DO NOT blw cld air directly twards peple fr extended perids. It may get yu a bad cld. DO NOT use chemical slvents, flammable insecticides, r abrasive materials. Clean the unit nly with a sft dry clth r rag. DO NOT cntinue t perate the unit if there is any abnrmal dr, burning, scrching, r smke. Stp and discnnect the unit immediately. DO NOT use the system fr anything ther than what it was designed fr r any nn-hvac purpses. D nt stre near fd, paint, r ther chemicals. DO NOT perate the unit fr prlnged perids withut refreshing ambient air. Opening a dr r windw peridically will suffice. P11 OF 34 P12 OF 34

8 IMPORTANT NOTES * Gd unit may nt wrk prperly r crrectly. as designed r manufactured, if nt installed prperly r crrectly. * Custmer d-it-yurself (DIY) installatin caused and/r will cause truble t the unit and yur prperty and yurself. * YMGI desn t allw nr recmmend nr hnr warranty fr DIY installatin. Custmers take full respnsibility fr DIY installatin. * DIY installatin may save mney at the frnt, but cst yu mre dwn the rad, mney and ther headache. SAFETY CAUTIONS AND ALERTS Installatin, Operatin, Maintenance, and Service shall fllw prfessinal standards and practices fr cnventinal cling and heating equipment, under Internatinal, Natinal, State, City r Lcal Cdes, and fllw guidelines listed in all related manuals and assciated prduct infrmatin prvided directly, frm YMGI. Failure t adhere t prper Installatin, Operatin, Maintenance, and Service culd result in unit malfunctin damage t equipment, persnal prperty, r physical injury, r even death, which YMGI is nt respnsible fr. Installatin must be perfrmed fllwing the YMGI Installatin/Maintenance Manuals. Installatin must be perfrmed by a certified technical installer nly. DO NOT attempt t install the unit by yurself trying t save mney. D-It- Yurself (DIY) installatin will vid YMGI prvided warranty and culd result in injury r death, r prperty damage due t fire, electrical shck, leaking, cllapsing, which YMGI is nt respnsible fr. Install the unit nt a strng lad bearing structure. The lcatin must be capable f handling the weight lad f the unit t prevent the unit frm falling r causing injury. Attach bth the indr and utdr units t the brackets that are fixed t the right psitin securely. Only use manufacturer specified and cdes allwed wires and cnduits t cnnect t the units s the stress is nt applied t the sectins. Incmplete cnnecting and insecure fixing culd cause fire r damage. Wiring must cnfrm t natinal regulatins. Failure t adhere t these standards culd result in persnal injury r death r prperty damage due t fire, electrical shck, falling units, r leaking. Cnnect the pwer crd directly t a designated and exclusive AC Pwer Circuit Breaker and r Discnnect Switch. The circuit must exceed permissible currents and is free f insulatin and cntact defects. Shall refrain frm intermediate r multiple cnnectins t avid fire r electric shck. DO NOT supply pwer until all wiring and tubing is checked cmpletely. Duble check fr gas leaks during r after installatin. The refrigerant gas may cause harmful substances when subjected t heat r fire. Refrigerant leakage will cause unit nt t generate enugh cling r heating and even damage cmpressrs and ther parts. Shut ff the main pwer prir t and during installatin t avid electrical shck. Make sure that the electrical pwer is discnnected frm the unit by making a ntice r put a sign at the pwer switch panel, t keep ther peple frm setting the pwer back during installatin. Cnnect all wiring securely. Any lse wire r ther bad cntact may cause an electrical arc, verheating, r fire hazard. Make sure that the unit is grunded fllwing YMGI Instructins and NEC, Internatinal, State, City, and Lcal Cdes. Electrical cver shall be securely attached t the indr and utdr unit service panels, therwise, culd result in fire r electric shck due t accumulatin f dust, sediments, water, misture, etc. Only use authrized YMGI parts in the installatin, maintenance, service, and repair f YMGI units. The use f nn-authrized r defective parts will vid the warranty and culd cause injury r death r prperty damage due t water leakage, falling units, fire, electric shck, etc. Pay extreme cautin t intercnnecting refrigerant cpper tubing, when installing r relcating the unit. Make sure that n ther substance than the specified refrigerant enters the refrigeratin circuit. Any presence f freign substances such as air r water r misture can cause an abnrmal pressure rise r verheat, which will result in an inefficient unit perfrmance r unit malfunctins, and will shrten unit lifetime. Pay extreme cautin t intercnnecting refrigerant cpper tubing when installing r relcating split system, as applicable. 1) Make sure that n substance ther than the specified refrigerant enters the refrigeratin circuit. Any presence f freign substances such as air r water r misture can cause an abnrmal pressure r verheat which will result in an inefficient unit perfrmance r unit malfunctin and will shrten the lngevity f the unit. 2) Tape tw ends f the cpper tubing, tape the wires fr the crrespnding indr unit t the cpper tubing, and mark well with either A, B, C r D t identify each cpper tubing/wiring bundle. D nt crss wire r mismatch tubing amng indr units f the multiple zne systems. Cnnect the electrical wiring and cpper tubing frm each zne f indr unit t the crrespnding wiring and cpper tubing cnnectins f the crrespnding utdr sectin (at utdr cndensing unit). Failure t d s will cause unit malfunctins, r damages t the cmpressrs and ther parts in the unit and even prperty r persnal injuries. YMGI LIABILITY DISCLAIMER IMPORTANT NOTES YMGI is NOT and shall NOT be respnsible fr any prblems due t custmer d it yurself(diy) installatin, nn-licensed installatin, and ther unprfessinal, incrrect, incmplete installatin, abuse t the unit, r abnrmal usage which wuld be cnsidered utside nrmal cnstraints, r recmmended ranges, and natural disasters such as fire, fld, earthquake, lighting, r thers similar. YMGI IS NOT AND SHALL NOT BE RESPONSIBLE FOR: Damage t the units r prperty r persn due t careless, r incautius, r rugh handing at jb site, such as pulling wires r pipes r plastic parts t hard, drpping units, rbbing unit surfaces, and etc. Damage t the units r prperty r persn due t unprfessinal r incrrect r incmplete mechanical installatin f units. Examples, nt limited t, are: sharp bending, nt finding kinks, cracking r deteriratin f cnnecting pipes, unevenly sitting units, nt securing the units, nt cleaning r leaving dirty inside f r nt tightening intercnnecting pipes, nt finding refrigerant r water leakage, nt vacuuming, nt pening refrigerant stpping valves at cndensing units, nt checking pressures, nt cvering bared refrigerant pipes and cnnectins, nt taping wire cnnectins, nt sealing drain pipe cnnectins, incrrect piping such as crssing piping amng multiple znes, and etc. Accumulated csts, services, r disasters due t unprfessinal r incrrect r incmplete installatin, r abnrmal usage f the units. Under perfrmance r damage t the unit, prperty r persn, at lw vacuum level due t unprfessinal r incautius r bad installatin, r damage t the unit r intercnnecting pipes after installatin and during usage. Under perfrmance r damage due t exceeding the recmmended distances r elevatin levels between indr and utdr units. Under perfrmance r damage due t the presence f any freign substances left inside refrigeratin pipes. Under perfrmance r damage due t the materials left in the air-cnditiner during installatin. Under perfrmance due t pr installatin r abnrmal usage in ther frmats. Water leakage prblems due t incrrect r pr installatin r unsealed drain hses. Damage due t refrigerant r il leakage as a result f unsuccessful pipe installatin r damage t the unit and r pipes during r after installatin. Damage due t supplying pwer befre all wiring and tubing is cmpletely finished and checked. Damage due t nt keeping units in the right psitins during handling, installatin r peratin. Damage t the units r prperty r persn due t custmer d it yurself(diy) installatin, nn-licensed installatin, and ther unprfessinal r incrrect r incmplete mechanical r electrical installatin nt mentined abve. Damage t the units r prperty r persn due t any ther Imprper Usage nt cnfrming t YMGI user regulatins, user peratin manuals and factry recmmendatins. Under perfrmance r damage due t perating the air cnditining system under pr physical cnditins such as anywhere there is airflw blckage, t much sunshine, t much crrsive gas r the srt. Under perfrmance r damage due t the Usage utside the YMGI recmmended peratin ambient cnditins including prper temperature and humidity ranges. Under perfrmance r damage due t the undersized r versized unit selectin, imprper design, incrrect unit anticipatin, and the srt. Damage due t nt grunding r prly grunding unit, incrrectly wiring units, lse r unsecured wiring, r ther bad cntact which may cause an electrical arc, verheating, r fire hazard. Damage r repairs required as a cnsequence f faulty installatin r applicatin. Damage due t failure t start as a cnsequence f exceeding recmmended vltage ranges (t lw r t high), blwn fuses, pen circuit breakers. Damage due t the inadequacy r interruptin f electrical service. Damage r repairs needed as a cnsequence f any misapplicatin, abuse, imprper servicing, unauthrized alteratin, r imprper peratin. Damage due t the usage f parts nt supplied r designated by YMGI Grup. Damage t the unit, prperty, and/r persn f whatever kind, direct r indirect, special r cnsequential, resulting frm the imprper installatin r usage f such prducts. Damage frm the units installed and perated utside USA r Canada. Damage as a result f flds, winds, fires, lightening, accidents, crrsive atmsphere, r ther cnditins beynd the cntrl f YMGI Grup. P13 OF 34 P14 OF 34

9 IMPORTANT NOTES FOR UNIT OPERATION ABMIENT & SIZING OPTIONS AT MANUFACTURE OR AFTER SALES: * Rust-free Cabinet * Plug & Cnnect Valves * Lw Ambient Cntrl * Wall Munt Line Cntrl * Cabled Defrst Cntrl COOLING ONLY HEAT PUMP HEAT PUMP+ELE. HEATER REF. TUBE/WIRE INS. KIT COOLING CAPACITY HEATING CAPACITY ELECTRIC HEATER (SUP.) DEHUMIDIFICATION SEER HSPF SOUND LEVEL (Actual) REFRIGERANT POWER SOURCE TOTAL CURRENT MCA HVAC CIRCUIT BREAKER SIZE INDOOR FAN MOTOR OUTDOOR FAN MOTOR COMPRESSOR CONNECTION TUBE ALLOWED MAXIMUM REF. TUBE WEIGHT DIMENSION W H D LOADING CAPACITY MODELS MODELS MODELS HEATING BOOSTER(-34B MODELS ONLY) RATED RATED RATED INDOOR / OUTDOOR W/O HEATER (31,32 Mdels) WITH HEATER (34 Mdels) W/O HEATER (31,32 Mdels) WITH HEATER (34 Mdels) W/O HEATER (31,32 Mdels) WITH HEATER (34 Mdels) FAN MOTOR (PSC) FAN MOTOR (PSC) HERMETIC DRAIN REFRIGERANT LIFT DROP TOTAL LENGTH INDOOR-NET INDOOR-GROSS OUTDOOR-NET OUTDOOR-GROSS INDOOR-NET INDOOR-BOX OUTDOOR-NET OUTDOOR-BOX 20'/40'/40'HQ System Mdel System Mdel System Mdel PRE-CHARGED FOR ' TUBING BTU/H 1), 2) BTU/H 1), 2) W(MAX) PTS./H BTU/H.W BTU/H.W db(a) FROM CIRCUIT BREAKER TO OUTDOOR TO INDOOR UNIT AMP AMP AMP AMP AMP AMP TYPE CFM H/M/L RATED AMP SPEED TYPE CFM RATED AMP SPEED TYPE BRAND DRAIN PIPE DISCHARGE SUCTION FT FT FT LBs LBs LBs LBs INCH INCH INCH INCH SETS Indr Unit Outdr Unit Indr Unit Outdr Unit Indr Unit Outdr Unit Cpper Sets, Wiring, Putty, Wall Sleeve, Wrap, Drain Hse Rated ID 80/67F OD 95F Rated ID 70/60F OD 47F (17F) RECOMMENDED WORKING TEMPERATURE RANGES RECOMMENDED WORKING TEMPERATURE RANGES * Advanced Health Kits (HEPA/Enzyme/ Cld Catalyst Filter, Light Wave, Or, Anin Generatr) * Treated Cil * Plug & Cnnect Cpper Line Set COOLING ID/OD (F) 3) HEATING ID/OD (F) 3) WMMS-09K-31A WMMS-09E-31A WMMS-09C-31A WMMS-09K-32A WMMS-09E-32A WMMS-09C-32A WMMS-09K-34B WMMS-09E-34B WMMS-09C-32B INST-1438-xx /4" 3/8" x11.5x x14.4x x21.3x x24.4x /228/ /4" 1/2" x11.5x x14.4x x21.3x x24.4x /220/ Flexible / / / /200/ WMMS-12K-31A WMMS-12E-31A WMMS-12C-31A WMMS-12K-32A WMMS-12E-32A WMMS-12C-32A WMMS-12K-34B WMMS-12E-34B WMMS-12C-32B INST-1412-xx R410A A: 115/1/60 B: /1/ /310/ CROSS FLOW 3 PROPELLER 1 ROTARY WMMS-18K-31B WMMS-18E-31B WMMS-18C-31B WMMS-18K-32B WMMS-18E-32B WMMS-18C-32B WMMS-18K-34B WMMS-18E-34B WMMS-18C-32B INST-3858-xx (6120) (7780) (11350) Indr Side 61 t 105 / Outdr Side 45 t 115 4) Indr Side 17 t 86 / Outdr Side 17 t 75 5) /575/ Hitachi, Sany, Panasnic 3/8" 5/8" x13.0x x16.7x x26.8x x30.1x /138/148 WMMS-24K-31B WMMS-24E-31B WMMS-24C-31B WMMS-24K-32B WMMS-24E-32B WMMS-24C-32B WMMS-24K-34B WMMS-24E-34B WMMS-24C-32B INST-3858-xx (15360) / /615/ /8" 5/8" x12.8x x16.3x x31.1x x35.5x /98/116 1) Perfrmance rated fr matched system at standard cnditins-cling ID 80/67F, OD 95F, heating ID 70/60F, OD 47/43F. Unit perfrmance varies when weather changes frm the standard ne. 2) Select equipment capacity/sizes per space lad calculatin schedule at lcal design temperatures and cling & heating hurs. Nt t ver size r under size equipment. 3) Watch unit peratin during extreme weather cnditins in summer and winter. After the unit is used fr quite a while in these weather, unit may step int prtectin mde and stay idle. 4) May wrk in lwer temp if installed with ptinal lw ambient cntrller. Ref. ICM 326HN. 5) Capacities and efficiency decrease, as utdr temperature drps. DRY MODE * In this mde, the air cnditiner autmatically sets the rm temperature and this temperature is incntrllable by remte cntrller. The initial ST=RT-2. * Cntrl during dry mde: a) When RT<15, dry mde is nt available; when RT 15, the cmpressr intermittently runs under the influence f TS and RT. b) When RT 23, if RT ST, the cmpressr runs intermittently as this: Run fr 8 minutes Stp fr 3 minutes If RT<ST, the cmpressr runs intermittently as this: Stp fr 4 minutes d) In this mde, the indr fan keeps running at lw speed with the same pace as the cmpressr, and this speed can nt be cntrlled by remte cntrller. AUTO MODE * In this mde, the air cnditiner can autmatically adjust the rm temperature t decide the mst suitable temperature. At the start f peratin, the unit will autmatically select the peratin mde accrding t the rm temperature. The fllwing table shws the cnditins which are set at start up. * Aut mde entering a) Once sme peratin mde is determined, it can nt be changed even if the RT has altered. b) Yu can change the peratin mde by remte cntrller. * If restart within 2 hurs, the unit will resume the same peratin mde as befre. If restart after 2 hurs, the unit will select the peratin mde accrding t the initial rm temperature. * At aut mde the ST can nly be set + r - 2 f the RT. FAN MODE * Indr fan runs at the set speed while cmpressr and utdr fan are turned ff. * Indr fan speed can be adjusted fr lw, medium and high. SLEEP MODE CONTROL SPECIFICATION Run fr 1 minute c) When RT<23, if RT ST, the cmpressr runs intermittently as this: Run fr 2 minutes Stp fr 3 minutes If RT<ST, the cmpressr runs intermittently as this: Stp fr 4 minutes Rm Temperature (RT) RT 79 F> 77 F> RT RT 79 F RT<73 F 77 F 73 F Mde Cl Dry Cl nly type Initial Setting Temperature 75 F RT-2 RT-2 70 F Run fr 1 minute Sleep mde in cling and drying running A) The indr fan runs at lw speed. B) After ne hur f peratin the set temperature will increase by 34 C. One hur later, the set temperature will increase by 1 C nce mre. The unit will then cntinue perating at 36 C abve the set temperature. Sleep mde in heating running A) The indr fan runs at lw speed. B) After ne hur f peratin the set temperature will decrease by 36 C. One hur later, the set temperature will decrease by 2 C nce mre. The unit will then cntinue perating at 39 C belw the set temperature. Mde Cl Dry Heat pump type Initial Setting Temperature 75 F RT-2 RT-2 79 F P15 OF 34 P16 OF 34

10 INTRODUCTION CLEARANCE REQUIRED AROUND UNITS-SINGLE ZONE INTRODUCTION INSTALLATION LOCATIONS The lcatin and structure shall als be cnvenient fr bth installatin and service. The lcatin shall NOT be where discharge air and nise culd bther yur neighbr. The lcatin shall NOT be smewhere drain may cause any damage t prperty r bther the neighbr. The lcatin shall NOT be smewhere sldering r trching wrk may cause fire r smke t the materials arund. The lcatin shall NOT be smewhere near flammable gases. The lcatin shall NOT be in r clse t crrsive gases. The lcatin shall NOT be smewhere children can access. Inspan the unit fr damage and missed parts r accessries. If damage is fund r parts are fund missing, call the distributr right away. Spin fan wheels r blades t check if and make sure they can rtate freely. If fan wheel scratches with husing, call the distributr right away and d nt t prceed with the installatin befre it is fixed. Check the unit t make sure n freign materials has been left in the unit. Check all the parts and accessries that are needed ther than thse prvided with the unit. It is strngly recmmended t nly use YMGI supplied r recmmended parts and accessries. Be sure a prperly sized circuit breaker is fr the electric pwer t the units. Pre-build the supprt platfrm n the grund r bracket fr the wall befre r during cnstructin and befre installatin. Refer t the table belw fr ftprint dimensins. Read installatin instructins f all units thrughly. Ask rep./distributr/us anything yu are nt sure abut. Get yur tls and parts ready fr installatin. All Units Shall Be Installed by Licensed Cntractr r Technician. Read Manuals befre Installatin. P17 OF 34 P18 OF 34

11 INSTALLATION POSITIONS FOR OUTDOOR UNIT * T be installed at the psitin where the air delivered frm the unit can reach every cmer f the rm. * T avid being affected by the utdr air. * T avid blckage t the air inlet r utlet f the unit. * T avid t much il smke r steam. * T avid pssible generatin, inflw, lingering r leakage f flammable gases. * T avid high-frequency facilities (such as high frequency arc welders, etc.). * T avid the places where acid slutins are frequently used. * T avid the places where sme special sprayers (sulfides) are frequently used. * Nt t install n tp f the musical instruments, TV, cmputer etc. valuable appliance. * Nt t install a fire alarming device near the air utlet f the unit (during peratin, the fire alarm device might be errneusly triggered by the warm air frm the unit). HEIGHT LIMITS OF INDOOR AND OUTDOOR UNITS * Either the indr unit r the utdr unit can be higher, but the height difference must cmply the stated r equirements. * Try t reduce the bending f the piping line as much as pssible s as t avid pssible negative impacts upn the perfrmances f the units. * Make P-trap if elevatin drp difference is mre than ", as illustrated belw. Indr unit Lift Outdr unit Drp Indr unit Refrigerant Pipe Min/Max. Length, Rise and Drp Height 1,000 Btu/h Min. Length (Ft.) Max. Length (Ft.) Max. Rise Height (Ft.) P-Trap 18 Ft. Outdr unit Max. Drp Height (Ft.) INSTALL WALL MOUNT PLATE DURING INSTALLATION-INDOOR UNIT * Check unit t make sure the unit is gd shape and ready t install. * Check t make sure the installatin lcatin is firm enugh t hld the weight f the whle unit and is cnvenient t installatin, maintenance, service and clse t the indr unit but nt causing nise r airflw issues t neighbur. * Install Indr unit. Enugh anchr blts/nuts shall be used t secure munting plates fr indr units. Brackets shuld be at level psitin. Install Munting Plate and Drill Hle fr Cmbinatin f Cpper Line/Wire Cable/Drain Hse NOTES: Anchrs must be put int the hles, where the slid arrws are pinting, as shwn abve, t secure the munting plate firmly and t hld the weight f indr unit. If mre screws/anchrs are t be used, make sure t keep the tw hles clse t each ther, at least 2 inches apart. Munting plate shuld be attached t the structural part f the wall. Minimum clearance, as shwn belw, is required in rder t ensure prper airflw and enugh service rm. STEPS TO MOUNT PLATE: 18" r mre frm sidewall Lcate the central hle at the stud (firn structure) Anchrs f selftappping screw Munting Plate Plumb b At least 12 inches 18" r mre frm sidewall Respect the slpe Mark drill psitins. At least 4 anchr hles, ne at each perimeter crner f the plate are needed t secure the plate, where the bld arrws are pinting, as shwn in the picture abve. Refer t the specificatin sheet fr unit weight s that enugh anchrs are installed at prper psitins. Pre-drill guiding hles where are marked fr anchrs r screws n the wall Cnfirm the psitin f the hles and finish drill t the depth needed fr anchrs (NOT fr screws) Align munting plate hles with thse hles drilled n the wall and put anchrs r screws int the hles t secure munting plate. DRILL 3IN HOLE FOR PIPING/WIRING/DRAIN Lcate the centre where the hle will need t drilled. Drill the hles f 2.5-3Inch diameter. A dwn pitch abut 1/4" per ft, as illustrated belw, is needed fr the hle, in rder t drain the cndensate prperly. Insert ruler Align ruler with straight line a c Drill munting hles t make sure at least either ne f three dimensins a, b and c is 16" center t center. Hle Diameter: 2.5~3 In PREPARE INDOOR UNIT- COPPER LINE SET/DRAIN HOSE If pipes need t cme ut f the right side (facing the frnt f indr unit) f the indr unit, snap ff prtin 1 n plastic casing. If pipes need t cme ut f the bttm side (facing the frnt f indr unit) f the indr unit, snap ff prtin 2 n plastic casing. If pipes need t cme ut f the left side (facing the frnt f indr unit) f the indr unit, snap ff prtin 3 n plastic casing P19 OF 34 P20 OF 34

12 DURING INSTALLATION-INDOOR UNIT PREPARE INDOOR UNIT- COPPER LINE SET/DRAIN HOSE If pipes need t be reruted t a different directin frm the ne preset at factry (twards left side, if facing the frnt cver f indr unit), lay dwn the indr unit n sft cushin r fam. Dn't rub the plastic casing. In rder t keep frm pipe damage, need t bend the cpper tubing set gently and slwly (finish bending n less than 10 secnds/90 degree), by hlding at the rt f the riginal 90 degree bend nicely and firmly. Dn't rub tw cpper lines during bending. Better t cut ff the insulatin and bend the tw pipes ne by ne, nt tw tgether. If pipes need t cme ut f the rear side (facing the frnt f indr unit) f the indr unit, n need t snap ff anything. Slice the insulatin befre bending. Hld the 90 degree bend rt, bend ne tube ne time, slwly, n quicker than 10 secnds/90 degree bend. DURING INSTALLATION-INDOOR UNIT REFIT DRAIN HOSE FROM THE RIGHT TO THE LEFT SIDE If drain hse needs t be refitted frm the riginal psitin (right side) t left side f the indr unit, careful handing is very necessary. Refitting methd: remve the drain hse frm riginal psitin, withut breaking hse. Unplug the plug at the left side. Apply water-resistant glue t fit the drain hse and the fitting befre securing it. Apply water-resistant glue nt the plug and fit it back int the cndensate cnnectin at right side. NOTES: May use sme srt f clamp t duble secure cnnectins. Drain hse Cndensate cnnectin at left side INSTALL DRAIN PIPE AT INDOOR The drain hse must be placed beneath the cpper pipes and MUST NOT be hunched r bended sharply. D nt pull the drain hse t hard, therwise it may get brken. Befre passing drain hse thrugh the hld, wrap with insulatin t keep frm pssible damage. The cpper pipe and the drain hse must be wrapped by piping wrap. Insulatin pad (underlay) shuld be used where the pipe cntacts the wall. Drain hse cming with indr unit Drain hse extending t drain line HANG INDOOR UNIT Run cpper set/wire cables/drain hse thrugh the wall hle and hang the indr unit nt the munting plate (place the hk n the munting plate int the hanging rib at rear side f plastic casing). Snap the plastic casing bttm int the munting plate, gently. SHAPE THE DRAIN HOSE T drain the cndensate easily, the drain hse shuld be inclined dwnward (pitched twards drain directin 1/4" per ft). Figures belw frm the 2nd t 5th shw sme incrrect practices. Drain hse may be extended using the hse cming with the installatin list. 2 in r less frm flr STUFF AND SEAL THE HOLE FOR COPPER LINE SET/WIRE CABLE/DRAIN HOSE Use putty t seal the wall hle. Use clamp (pipe fastener) t secure the pipe at specified psitin. Sealed with putty Secure the piping/ wiring set with clamp Trim the extra prtin. P21 OF 34 P22 OF 34

13 INSTALLATION-OUTDOOR UNIT WIRING OUTDOOR UNIT INSTALL OUTDOOR UNIT Strngly suggest t install the utdr unit abve the grund either n platfrm r brackets as shwn belw. Heat pump unit must be lift up frm grund level, since cndensate must be drained ut f the drain pan in cndensing unit; thewise, cndensate may be iced up t damage the cndensing unit. Suggest t use YMGI-prvided brackets and cndensate drainage fitting accessries. >18" >18" Brackets Cated Brackets W A ccessries (Actual unit/parts lking/installatin may vary frm the illustrated) INSTALLATION & PICTURES-WALL MOUNT BRACKET FOR OUTDOOR UNIT(S) (PART VARIES UPON MODELS/AVAILABILITY) Select a secured lcatin where the utdr unit will be installed prperly. Orient the unit rear side (intake grill) twards wall and frnt side (discharge grill) away frm wall. Heavy-Duty PVC Riser Bracket Accessries Fr grund installatin, use factry-prvided riser and accessries. Nt t blt unit feet directly nt grund. Riser r brackets shall be levelled at utdr unit ft surfaces. Secure unit ft by tightening blts, nuts and anti-vibratin pads. Fr wall munt installatin, use factry-prvided brackets, anchrs and accessries. CONNECT WIRING BETWEEN OUTDOOR UNIT AND INDOOR UNIT Check the nameplate fr rated electrical data. Check pwer and wire length and sizes. Use NEC, 105 C/221 F type cpper wire. Refer t the fllwing tables, fr prper selectin f wire gauge and clur. OUTDOOR WIRING: OUTDOOR-INDOOR UNIT & DISCONNECT SWITCH BOX/CIRCUIT BREAKER/FUSE Remve the wiring diagram cver where als the handle fr mving unit is lcated. Fllw the wiring diagrams n the unit r the wiring diagram manual that cmes with the indr unit t get familiar with wiring and make sure nthing is made wrng. If there is any discrepancy, always use the ne put in the units. Cnnect wires between indr unit and utdr unit-pwer wire frm utdr t Indr, cntrl wires frm Indr unit t utdr unit. Pass wire thrugh certified wire pipes, harnesses and knckuts. Enugh length shall be left fr future service. Only cpper wire is allwed. Strictly fllw NEC r state r lcal cdes t select wires, circuit breaker, cnduits and t perfrm installatin wrk. Bring in line-vltage pwer input wires frm circuit breaker t line-vltage wire terminal blck at utdr unit. Pass thrugh certified wire pipes, harnesses and knckuts. Enugh length shall be left fr future service. Only cpper wire is allwed. PIPING AND WIRING SIZES Mdel Liquid/ Gas Line Min/Max. Length/ +/-Elevatin Pwer Wire Discnnect Switch Bx t Outdr Unit Discnnect switch bx fr utdr unit (Field-Supplied, Nt Spliced and Nt Kntted, Water-Prf Sealed Tight, UL Apprved) Pwer/ Cntrl Wire Outdr t Indr Unit 09K 1/4 & 3/8 15/70//35 L/N/G, 115/1/60, 14AWG Pwer: L/N/G Cntrl: AC-2 HP-2/3/4 20/10 12K 1/4 & 1/2 15/70//35 L/N/G, 115/1/60, 14AWG Pwer: L/N/G Cntrl: AC-2 HP-2/3/4 /10 18K 3/8 & 5/8 15/100/30/50 L1/L2/G, /1/60, 14AWG Pwer: L1/L2/G Cntrl: AC-2 HP-2/3/ K 3/8 & 5/8 15/100/30/50 L1/L2/G, /1/60, 14AWG Pwer: L1/L2/G Cntrl: AC-2 HP-2/3/4 HVAC Circuit Breaker/Fuse AMP (t Outdr Unit) P23 OF 34 P24 OF 34

14 CONNECT REFRIGERANT PIPES BETWEEN INDOOR AND OUTDOOR UNITS Firstly, cnnect cpper tubes at indr unit. Bend pipes by tls but nt by hands. Extra length is needed fr future service. REFRIGERANT PIPES: Fr distance ther than ' between indr and hrizntal venting cndensing units, refer t the fllwing table fr cpper sizes. Refrigerant Valve and Pipe Size/Length K Btu/h CUT REFRIGERANT PIPE: Make sure the pipe sectin where is t be cut is straight and smth. Apply cutting blade straightly perpendicular t the pipe surface. Dn't cut t fast r t hard. Turn and tighten the tube cutter slwly. Remve residual left at the cutting edge. The cutting edge shuld be clear and clean and smth. CONNECT REFRIGERANT PIPES Refrigerant Pipe Min/Max. Length, Rise and Drp Height 1,000 Btu/h Valve Size Liq, Gas 1/4", 3/8" 1/4", 1/2" 3/8", 5/8" 3/8", 5/8" 3/8", 5/8" 3/8", 5/8" 15-30ft 1/4", 3/8" 1/4", 1/2" 3/8", 5/8" 3/8", 5/8" 3/8", 5/8" 3/8", 5/8" Min. Length (Ft.) Line Sizes at Different Length 31-60ft 1/4", 1/2" 3/8", 5/8" 3/8", 3/4" 3/8", 3/4" 3/8", 3/4" 3/8", 3/4" Max. Length (Ft.) Running Intercnnectin Refrigerant Lines: Use clean refrigeratin grade f cpper tubing nly. Keep the cpper lines frm kinking and transmitting nise t walls, cabinets, etc. Nt t exceed 100' with 35' f vertical lift included. Insulate the suctin line with at least 3/8" thick insulatin tubes. Band and tape and secure refrigerant lines. Supprt cpper lines at prper distance apart t keep tubes frm sagging. Max. Rise Height (Ft.) Cnnect Cpper Pipes-Flare/nut Cnnectin at Bth Indr and Outdr Units Prper trque shall be applied t make gd cnnectin at female nut, flare and male nut, as recmmended in the fllwing table. T much trque may damage and break flare/nut seal. T less trque may nt ensure gd seal. ALWAYS use a pair f wretches Max. Drp Height (Ft.) CONNECT REFRIGERANT PIPES BETWEEN INDOOR AND OUTDOOR UNITS Seal Cpper Line Set/Wire Cable/Drain Hse Line Cmbinatin Heat insulatr (indr unit) Heat insulatr (cnnectin pipe) Cnnecting pipe Ribbn vinyl Sealing tape Pipe f indr unit Overlap nyln ribbn r similar wrap. Sealing tape PiPe Intercnnectin cable Jin the tubes insulatrs and refrigerating cnnectin s as there is n space. Intercnnectin cable Pipe RIibbn viyl Intercnnectin cable PiPe Drain hse Clamp Drain hse * Run cables alng with the refrigerating cpper line sets and secure them with tapes at 6 feet apart. * Wrap tape clsely (cver a third f the width f the nyln ribbn tape applied early) t get gd seal. * Tape t seal the end f taping. * Shape the pipe cmbinatin gently, withut causing kinking, sharp bending, r ther damage t it. Wall Outdr screw Putty * Fix the pipe cmbinatin securely n the external wall with prper clamps, as drafted belw, at 6 feet apart. * Fill the gap between the wall hle and wall sleeve with putty t keep frm rain r dust getting inside. T keep the allwed bending radius, please make the packed sft pipes vertical fr expanding. Please make use f semicircle pulley t keep the allwed bending radius. PIPING GUIDE Out Please d nt expand nly ne side f the packed sft pipes. Extremely bending culd damage the pipes. Refrigerant Pipe Flare/Nut Cnnectin Tightening Trque Flare Nut 1/4-3/8" 1/4-1/2" 1/2-3/4" 7/8-1 1/8" Tightening Trque Ft. LBs (350 Kgf.cm) 40 Ft. LBs (560 Kgf.cm) 60 Ft. LBs (840 Kgf.cm) 110Ft. LBs (1540 Kgf.cm) Cnnect Cpper Pipes-Sweat Cnnectin In this case, put wet rag t prtect valves r ther cmpnents frm being verheated. When using flux, rub the tube surface using steel wl t shine and clean t dry as s t keep t-be-sealed system frm any pssible cntaminatin. Please use twisting wheel t avid imprper bending. Please use rigid elbw t keep the bending radius while sft pipes perating. Please keep the minimum bending radius while installing. Over length sft pipes will lead t irregular bending. Undersize bending will damage the sft pipe. Shrt sft pipes will have them bending undersize, it's nt allwed. P OF 34 P26 OF 34

15 CONNECT REFRIGERANT PIPES INSTALLATION ACCESSORIES Seal Cpper Line Set/Wire Cable/Drain Hse Line Cmbinatin: * Use factry-recmmended cmpnents, as briefly illustrated belw. * Cver line set in a sequence, either frm indr t utdr, r the ther way. * Secure line set cvers nt the wall using factry-recmmended accessries. LINESET COVERS VACUUM REFRIGERANT PIPES VACUUM AND LEAKAGE CHECK Evacuate the pipes between indr and utdr units, using vacuum pump and manifld/gauge set, t a minimum f 500 micrns (service valves remain frnt seated). Hld fr 30 minutes t check if the vacuum level is maintained. Using dry nitrgen r ther leakage detectin tl fr leak checking. Be certain there is n pressure in the system when repairing a leak. Vacuum befre Releasing Refrigerant frm Outdr Unit t Indr Unit. Nt t damage line sets. Hexagn Allen wrench INLTS STRT COUP COUP-H OFST Service valve ELBF9 ELBF4 SOFT TEE ENDF RDER OUTDOOR UNIT FOOT RISER OR BRACKETS BRKT-SC1 * Made f sturdy steel. * Painted with weatherprf plyester pwder. * Anchrs/nuts/screws (general use) may be included. Mdel BRKT-0912-SC1 BRKT-1824-SC1 BRKT-2430-SC1 BRKT-3660-SC1 Size(Inch) Capacity A B LBs Btu/h BRKT-ST1 * Made f stainless steel. * Anchrs/nuts/screws (general use) may be included. Mdel BRKT-0912-ST1 BRKT-1824-ST1 BRKT-2430-ST1 BRKT-3660-ST1 Size(Inch) 09K-12K 18K-24K 24K-30K 36K-60K Capacity A B LBs Btu/h K-12K 18K-24K 24K-30K 36K-60K RIST-PVC Grund Riser Accessries: End Caps (Optinal) * Shck-prf PVC, Weatherprf & UV resistant. * Supplied with fastening screws and anchr blts. * Easy and quick t install n any grund surface. * The hneycmb structure acts as an anti-vibratin & humming absrptin fr a quite peratin. Mdel RIST-0912-PVC RIST-1860-PVC Size(Inch) Capacity A B C D LBs Btu/h K-18K 18K-60K B B A D A A C B SYSTEM INSPECTION AND TRIAL RUNNING PRESSURE CHECKING System pressure checking is ne f the basics t find ut the status f system perfrmance and diagnse any prblems. The fllwing curves are nly reference fr system pressure checking. Actual pressures may vary upn many factrs such as inter-cnnecting pipe length, refrigerant charge / leakage level, elevatin difference between indr unit and utdr unit, tl calibratin, reading errr, and s n. Reference Temperature-Pressure Table (Split Cndensing Unit-R410A AC) Prduct Series: YMGI Grup-Mini Split Versin: 01/11/2010 Outdr Dry-Bulb (F) Outdr Dry-Bulb (C) Outdr Wet-Bulb (F) Outdr Wet-Bulb (C) Indr Dry-Bulb Indr Wet-Bulb Discharge-PSI/F Suctin-PSI/F Warning: R410A refrigerant bears higher pressures than R22. Only handled by Licensed HVAC technician F (26.7C) 67F (19.4C) 74/ / / /38.5 1/ / / / / / / / / / / / / / / / / / / / / / / / / /59.5 Suggest t Add n Lw Ambient Cntrl, If Still in Need f AC fr Lng Time In Cld Weather. Clsely Check/Watch Refrigerant Charge Level. Reference Temperature-Pressure Table (Split Cndensing Unit, R410A-Heat Pump) Prduct Series: YMGI Grup-Mini Split System Versin: 01/11/2010 Outdr Dry-Bulb (F) Outdr Dry-Bulb (C) Outdr Wet-Bulb (F) Outdr Wet-Bulb (C) Indr Dry-Bulb Indr Wet-Bulb Discharge-PSI/F Suctin-PSI/F F (21.1C) 60F (15.6C) 260/84 269/ /95 290/ / / / / / / / / /72 5/78 270/86 278/89 285/92 290/95 310/98 318/ / / /107 4/ P27 OF 34 P28 OF 34