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YMGI: Your Modern Green Idea

 

INSTALLER'S INSTRUCTION & USER'S MANUAL 

Wall Mount Mini Split Systems 

SYMPHONY CHOIR DC INVERTER DUAL ZONE (46)2 

2x09k and 2x12k, 15 SEER Cooling and Heat Pump

 

 

Model Numbers:

 

System: 
WMMS-2x09K-V2B(46)2 
IDU: 
WMMS-09EW-V2B(46)2 
ODU: 
WMMS-21CH-V2B(46)2 
 
System: 
WMMS-2x12K-V2B(46)2 
IDU: 
WMMS-12EW-V2B(46)2  
ODU: 
WMMS-24CH-V2B(46)2 

 

 

Thank you for choosing this YMGI product. Please read the owner’s manual carefully before installation and operation and retain for your 
records and future reference. If you need a replacement copy, please contact your local agent or visit www.ymgigroup.com to download 
a current electronic version. 

NOTICE

 

This  product  is  designed  and  manufactured  to  be  free  from  any  defects  in  material  and  workmanship  during  normal  use  and 
maintenance. Installation, operation, maintenance and repair must follow all  standards and professional practices for regular cooling 
and heating equipment, such as NEC, State, or Local Codes and all related documents/manuals provided by YMGI. Failure to follow 
and adhere to all codes and documentation can cause damage to equipment, property even personal injury. 

Installer

: Currently licensed/certified HVAC technicians only. Must Read the manual and all provided documents prior to installation.   

Complete and fill out all required information on the warranty registration card. 

User

: Retain this manual and all supplied documents for your records and future reference. 

Servicer

: Use this manual for information concerning servicing and maintenance of this product.

 

SAFETY WARNING

 

Only qualified technicians should install and service this equipment. The installation, startup, operation and servicing of this equipment 
can be hazardous and requires a HVAC professional who has been trained, licensed and certified. Installations, adjustments or any 
equipment alterations done by an unqualified person could result in serious injury and even death. When working on the equipment, 
observe all precautions in the provided documents, on the tags, stickers, and labels that are attached to or placed on the equipment.

 

Summary of Contents for SYMPHONY CHOIR WMMS-2x09K-V2B(46)2

Page 1: ...s NEC State or Local Codes and all related documents manuals provided by YMGI Failure to follow and adhere to all codes and documentation can cause damage to equipment property even personal injury Installer Currently licensed certified HVAC technicians only Must Read the manual and all provided documents prior to installation Complete and fill out all required information on the warranty registra...

Page 2: ...Breif Introduction to Mini Split Wall Mount Systems 14 Sample Layout 15 Specification Sheet 16 Connection of Wiring 18 Engineering Submittals Dimensions 20 Installation Clearance 22 Installation Location Selections 23 Recommended Tools for Installation 24 Installation Indoor Units 26 Installation Outdoor Units 29 Connect Refrigerant Pipes Between Indoor and Outdoor Units 30 Piping Guide 33 Install...

Page 3: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 3 ...

Page 4: ...irements for handling reclaiming recovering and recycling of certain refrigerants the equipment and tools necessary to perform these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants HVAC R technicians must know the applicable laws and follow them Disposal Notice Do not dispose this ...

Page 5: ...ystem installer or HVAC professional as soon as possible and provide the following information Data on the unit model number serial number and owner s name A detailed description of the unit s problem before and after the problem occurred To avoid personal injury or property damage do not disassemble the unit yourself If disassembly is required to check the unit contact your authorized system inst...

Page 6: ... etc which the manufacturer may not require certified and licensed personnel to install Reading and following YMGI Group recommendations and requirements contained in the following pages and other documents is the first step to help ensure a smooth installation and proper operation of your unit for many years YMGI doesn t recommend nor allow any do it yourself DIY installation partially or fully D...

Page 7: ...lling the piping through any structures at time of installation 2 Not installing an oil P trap in the copper suction line where the indoor unit is located 18 feet or more below the outdoor unit 3 Cross piping and or cross wiring of any units including more than one single zone or a multi zone system 4 Not conducting a positive leak check prior to the negative leak check 5 Not conducting a positive...

Page 8: ...D D or any other identifying marks on each pair of copper lines and wiring cable sets to keep from cross piping or cross wiring in multiple zone installations or where pipes for different single zone systems are close to one another 13 Secure the wiring cables that connect between the indoor unit and outdoor unit following all applicable NEC state and local codes for your installation If there is ...

Page 9: ...cation or 90 days as of original shipping date from YMGI Group whichever comes first This is a standard limited liability warranty and DOES NOT cover the following Any damage or repairs to properties or persons as an incident of or consequence of improper faulty transportation installation operation maintenance or service Any damage caused by frozen or broken water hoses or refrigeration pipes in ...

Page 10: ...est will be charged accordingly 3 YMGI will ground ship out the parts ASAP Expedited shipping is available at the customer s expense 4 Replacement parts that have an approved warranty registration are to be warranted for the remainder of the 2 year on parts and a 7 year compressor warranty Purchasing of replacement parts without a valid warranty filing or unapproved warranty request will be sold a...

Page 11: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 11 ...

Page 12: ...ine if they are reputable 4 Use only a reputable licensed certified HVAC installation professional to prevent any unexpected charges because of unethical business practices 5 Check their references verify they provide professional service for their customers N A T E or A C C A certified technicians are strongly recommended 6 Some contractors technicians may not feel comfortable about installing eq...

Page 13: ...nts 17 While operating in cooling mode do not set the indoor unit s room temperature too low Keeping the temperature difference between indoor and outdoor unit within 41 18 YMGI Group recommends that only properly trained and authorized personnel be allowed to repair or service the unit Improper repairs or servicing can result in electric shock or fire hazards Please contact YMGI Group if you need...

Page 14: ... Make sure to disconnect the power supply and switch off all circuits prior to inspecting or servicing the unit Inspecting and servicing the unit while the power supply is connected and the circuits are switched on could cause an electrical shock or fire DO NOT install the indoor unit near any cooking surfaces in direct sunlight or any ventilation systems Poor placement could decrease efficiency a...

Page 15: ...acking or bracket kit is used some outdoor units can be stacked 2 or 3 units high depending upon unit size and applications Air is discharged horizontally quietly and smoothly These units are a perfect fit in locations where installation and applications of general up flow condensing units are limited such as apartments condos lofts multi families and high rise buildings and others named or unname...

Page 16: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 16 SAMPLE LAYOUT OF INSTALLED SYSTEM ...

Page 17: ...25 Maximum HVAC Type Circuit Breaker Amp 30 30 Compressor Model DA150S1C 28FZ ATL232SDNC9AUY Type Rotary Rotary Brand GMCC HIGHLY Nominal Capacity Btu h 15405 22297 Input W 1135 2075 Rated current RLA Amp 4 05 10 7 Locked rotor Amp LRA Amp Thermal protector Thermal protector position EXTERNAL EXTERNAL Refrigerant oil oil charge ml ESTER OIL VG 74 500ml α68HES H or equivalent 880 20ml Indoor fan mo...

Page 18: ...wires between IDU an ODU If 50 Ft 4x18AWG 4x18AWG Thermostat type Remote Control Remote Control Operating Temp Ranges Indoor cooling heating F 61 90 61 90 Outdoor cooling heating F 64 F 115 F 4 F 60 F 64 F 115 F 4 F 60 F Application area cooling standard Sq ft 129 200 x 2 172 300 x 2 Notes 1 Performance rated for matched system at standard conditions cooling ID 80 67 F OD 95 F heating ID 70 60 F O...

Page 19: ...rect exposure to heat exposure to sunlight The specifications for the power cable refer to the minimum values of the metal core wires taking into consideration the voltage losses the core wire of power cable must be one size larger than the specifications The grounding wire must be connected to the indoor units and outdoor units The laying of power cables must be done by qualified electricians and...

Page 20: ...ctor work is eased and time is saved Efficiency and lifetime of system is increased YMGI Mini Split Wall Mount Systems are all heat pumps some manufacturers make cooling only and heat pumps with auxiliary electric heaters These units can be easily wired Either indoor unit or outdoor unit can be used with any matched comparable outdoor unit or indoor unit as long as they have matched size and contr...

Page 21: ...d YMGI Your Modern Green Idea 21 UNIT ENGINEERING SUBMITTALS DIMENSIONS INDOOR UNITS Model W inches H inches D inches WMMS 09E V2B 48 2 31 11 8 WMMS 12E V2B 48 2 31 11 8 MOUNTING BRACKET CLEARENCE Note Actual unit part may appear differently than what is the above illustration ...

Page 22: ...e and Efficient Green World YMGI Your Modern Green Idea 22 UNIT ENGINEERING SUBMITTALS DIMENSIONS OUTDOOR UNITS Dimensions In Weight lbs Model W H D A B Net Gross 2 x 09K 33 46 23 85 11 49 12 67 19 88 60 64 2 x 12K 34 33 27 59 12 28 13 14 23 22 71 75 ...

Page 23: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 23 INSTALLATION CLEARANCE REQUIREMENTS GENERAL ...

Page 24: ...ur Modern Green Idea 24 INSTALLATION CLEARANCE REQUIREMENTS OUTDOOR UNIT MAKE SURE OF ENOUGH SPACE FOR INSTALLATION AND MAINTENANCE To take into consideration the operational convenience and safety in installation it is recommended to ensure enough space between the unit and the walls ...

Page 25: ...ed Work Individual wrench Set Use Two at One Time Flare Nut Tool Set Not Shown Hex Head Allen Wrench Sets Metric and Imperial Brazing Rods and Brazing Torch Outfit for AC Application Not Shown Brazing Flux Nitrogen Cylinder for Positive Pressure Leakage Check Not Shown Soap Bubble for Positive Pressure Leakage Check Not Shown Vacuum Pump for Negative Pressure Leakage Check Helium Refrigerant for M...

Page 26: ...port platform on the ground or bracket for the wall before or during construction and before installation Read installation instructions for all units thoroughly Ask rep distributor YMGI Group anything you are not sure about Get your tools and parts ready and start the installation BASIC REQUIREMENTS FOR THE INSTALLATION LOCATION Choose a location where there are no strong heat sources vapors flam...

Page 27: ... indoor unit Install Mounting Plate and Drill Hole for Combination of Copper Line Wire Cable Drain Hose NOTES Anchors must be put into the holes where the solid arrows are pointing as shown to secure the mounting plate firmly and to hold the weight of the indoor unit If more screws anchors are required make sure to keep the two holes close to each other at least 2 inches apart The mounting plate s...

Page 28: ...on from the one preset at factory towards left side if facing the front cover of indoor unit lay the indoor unit down on a soft cushion or foam Don t rub the plastic casing To keep from damaging the pipes bend the copper tubing set gently and slowly A 90 bend should take a minimum of 10 seconds by firmly holding the pipe at the root of the original 90 bend Don t rub the two copper lines while bend...

Page 29: ...ion at right side NOTE A clamp can be used to further secure the connections HANG INDOOR UNIT Run copper set wire cables drain hose through the wall hole and hang the indoor unit onto the mounting plate place the hook on the mounting plate into the hanging rib at rear side of plastic casing Snap the plastic casing bottom into the mounting plate gently SHAPE THE DRAIN HOSE To drain the condensate e...

Page 30: ...a secured location where the outdoor unit can be installed properly Orient the unit rear side intake grill towards wall and front side discharge grill away from wall For ground installation use factory provided riser and accessories Do not bolt unit feet directly onto ground Riser or brackets should be levelled at outdoor unit foot surfaces Secure unit foot by tightening bolts nuts and anti vibrat...

Page 31: ...Circuit Breaker Fuse AMP to Outdoor Unit 2 x 09K 2 x 1 4 3 8 15 75 35 L N G 208 230 1 60 10AWG LA NA SA G 208 230V 1 60Hz 4 AWG18 LB NB SB G 208 230V 1 60Hz 4 AWG18 30 2 x 12K 2 x 1 4 3 8 15 75 35 L N G 208 230 1 60 10AWG LA NA SA G 208 230V 1 60Hz 4 AWG18 LB NB SB G 208 230V 1 60Hz 4 AWG18 30 CONNECT REFRIGERANT PIPES BETWEEN THE INDOOR AND OUTDOOR UNITS First connect the copper tubes at indoor u...

Page 32: ...l Too little torque may not ensure a good seal ALWAYS use a pair of wrenches when tightening Refrigerant Pipe Flare Nut Connection Tightening Torque Flare Nut Tightening Torque 1 4 3 8 25 ft lbs 350 kg cm 1 4 1 2 40 ft lbs 560 kg cm 1 2 3 4 60 ft lbs 840 kg cm 7 8 1 1 8 110 ft lbs 1540 kg cm Connect Copper Pipes Sweat Connection In this case wrap a wet rag around the pipe to protect the valves or ...

Page 33: ...her damage to it Fix the pipe combination securely on the external wall with proper clamps 6 feet apart Fill the gap between the wall hole and wall sleeve with putty to keep rain or dust from entering inside PIPING GUIDE Set the packed pipes in a vertical position and then unwind them slowly Do not unwind only one end of the coiled pipes Use pulley or a bending tool to ensure a safe bending radius...

Page 34: ...AWG LA NA SA G 208 230V 1 60Hz 4 AWG18 LB NB SB G 208 230V 1 60Hz 4 AWG18 30 2 x 12K 2 x 1 4 3 8 15 75 35 L N G 208 230 1 60 10AWG LA NA SA G 208 230V 1 60Hz 4 AWG18 LB NB SB G 208 230V 1 60Hz 4 AWG18 30 The indoor unit and the outdoor unit can be at different heights either above or below each other The height for the difference must follow the stated requirements shown in the table below Keep be...

Page 35: ...T RISER OR BRACKETS BRKT XXXX SC1 Made of steel Coated with weatherproof polyester powder Model Size Inch Capacity A B LBs Btu h BRKT 0918 SC1 17 7 15 4 320 09K 18K BRKT 1860 SC 21 7 18 3 360 18K 60K BRKT XXXX ST1 Made of stainless steel Model Size Inch Capacity A B LBs Btu h BRKT 0918 ST1 17 7 15 4 320 09K 18K BRKT 1860 ST1 21 7 18 3 360 18K 60K RIST XXXX PVC Foot Riser Accessories End Caps Optio...

Page 36: ...vice valves remain front seated Turn off manifold valve low to check if the vacuum level is maintained for a minimum of 60 minutes Be certain there is no pressure in the system when repairing a leak Vacuum and Check Leakage before Releasing Refrigerant from Outdoor Unit to Indoor Unit For Multi Zone systems repeat this process for each zone with indoor units attached to it If all zones are not bei...

Page 37: ...ng method than rough refrigerant addition or deduction guideline shown above In some cases if the service valve on unit is 5 16 and your service valve connection is 1 4 need to use a 5 16 1 4 adaptor so that you can connect to your manifold Need to pay attention to use the right manifold that is rated for the refrigerant in the unit and pay attention to connect to the right hose blue hose for low ...

Page 38: ...tion installed correctly and securely It may cause unit malfunction or damage to the part unit Has the unit been connected to a secure ground connection It may cause electric leakage Is the power cord specified properly per NEC codes It may cause wire to overheat or even catch fire Has the air inlet and outlet been cleared It may cause insufficient cooling heating capacity and unexpected noise Has...

Page 39: ... in Figure d and then close the panel cover CLEANING AND MAINTENANCE Regular Filter and or Other Enhanced Filters Always remove the filters and enhanced filters before cleaning them Do not use water to clean a silver ion filter The active carbon photo catalyst low temperature conversion LTC catalyst formaldehyde eliminator ca techin or mite killing filters can be cleaned with water but do not use ...

Page 40: ... off the TURBO function C to F To change temperature settings from Celsius to Fahrenheit press the TURBO button and the TEMP button simultaneously 10 C HEAT Function press the TURBO button and the TEMP button simultaneously to start or stop the 10 C Function Note Above figure shows all indicators for the purpose of illustration but when in use only the activated function icons are indicated When a...

Page 41: ... telephone remote controller should be close to indoor unit during operation Replace new batteries of the same model when replacement is required When you will not be using the remote for prolonged periods please take out the batteries If the display on remote controller is fuzzy or there s no display please replace batteries NOTE When changing the batteries do not use the old or different batteri...

Page 42: ...r a mild nonabrasive cleanser CLEAN THE FRONT PANEL MAKE SURE TO TAKE IT OFF BEFORE CLEANING Take off the front panel Along the direction of arrows lift the front panel up meanwhile hold both slots of the front panel and remove Washing Clean with a soft brush water and neutral detergent and then dry it Note Before cleaning the unit please remove the display box first then wash the panel If the uni...

Page 43: ...rs have been cleaned air dry completely out of direct sunlight NOTE Never use water hotter than 113 F to wash the unit or the filters as this can discolor and or deform the unit Never dry the filters by a fire or open flame as this can be dangerous Always air dry the filters Reinsert the filters Reinsert the filters aligning with the arrow head then cover the surface panel and clasp it CHECK BEFOR...

Page 44: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 44 WIRING DIAGRAMS 2x09k Systems Indoor Unit WMMS 09EW V2B 46 2 Outdoor Unit WMMS 21CH V2B 46 2 ...

Page 45: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 45 2 x 12k Systems Indoor Unit WMMS 12EW V2B 46 2 Outdoor Unit WMMS 24CH V2B 46 2 ...

Page 46: ...I for more information Error Codes Display for Indoor Unit Malfunction Indoor Unit Display Status Code LED display Running lamp flashing frequency Timing lamp flashing frequency Communication fault between the indoor and outdoor units F1 1 Lighten Indoor ambient temperature sensor fault F2 2 Lighten Indoor coil temperature sensor fault including inlet middle of pipe and outlet F3 3 Lighten Indoor ...

Page 47: ...emperature protection P4 Lighten 4 Compressor overheat protection P5 Lighten 5 Compressor suction temperature protection P6 Lighten 6 Power supply high or low current high or low voltage protection P7 Lighten 7 High pressure discharge protection F9 Lighten 9 Condenser high temperature protection PA Lighten 10 Outdoor high ambient temperature protection PC Lighten 11 Other protection fault PF Light...

Page 48: ...97 4 03 120 2 2 164 2 207 2 249 3 30 1 70 21 2 16 797 17 160 17 524 1 00 4 00 122 2 096 2 138 2 180 3 34 1 66 23 16 090 16 431 16 733 1 04 3 96 123 8 2 030 2 071 2 112 3 37 1 63 24 8 15 418 15 739 16 060 1 07 3 93 125 6 1 966 2 006 2 047 3 41 1 59 26 6 14 779 15 080 15 382 1 11 3 89 127 4 1 904 1 944 1 984 3 44 1 54 28 4 14 170 14 454 14 737 1 15 3 85 129 2 1 844 1 884 1 923 3 48 1 52 30 2 13 591 ...

Page 49: ... 8 14 520 206 6 3 655 13 642 600 60 8 74 590 134 6 14 010 208 4 3 537 11 2 605 200 62 6 71 270 136 4 13 520 210 2 3 424 9 4 570 200 64 4 68 120 138 2 13 050 212 3 315 7 6 537 400 66 2 65 120 140 12 600 213 8 3 209 5 8 506 700 68 62 280 141 8 12 170 215 6 3 107 4 477 900 69 8 59 570 143 6 11 750 217 4 3 009 2 2 450 900 71 6 57 000 145 4 11 350 219 2 2 914 0 4 425 600 73 4 54 550 147 2 10 960 221 2 ...

Page 50: ...een World YMGI Your Modern Green Idea 50 USER NOTES AND INSTALLATION SERVICE MAINTENANCE NOTES INSTALLATION NOTES Put down whatever questions you have or problems you have seen as a unit history No Date Noes Asked Your Technician for Help Did You Ask YMGI Tech for Help ...

Page 51: ... World YMGI Your Modern Green Idea 51 MAINTENANCE NOTES Put down whatever questions you have or issues you have seen as a unit history No Date Installation Company Name Technician Name Phone HCAC License Job Not Performed by Technician Technician Checklist Completed Fully ...

Page 52: ...eered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 52 SERVICE NOTES No Date Contents of Service Maintenance Technician s Company Name Technician Name Phone HCAC License ...

Page 53: ... 8 16 and 24 Ton Symphony SOLO DC Inverter 57 2 3 Single Zone 16 SEER 09 36K Btu h 58 4 78 1 Single Zone 18 23 SEER 09 36K Btu h Symphony CHOIR DC Inverter 46 2 DC Inverter Multiple Zone 15 SEER 2x09K and 2x12K Btu h 59 2S DC Inverter Multiple Zone 16 SEER 6x09K to 9x09K Btu h 59 4 DC Inverter Multiple Zone 21 SEER 2x09K to 5x12K Btu h Symphony VRF DC Inverter HP Heat Recovery and Solar Up to 64 z...

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