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YMGI Group, POB 1559
YMGI Group New Energy, POB 1668
O'Fallon, MO 63366, USA
Tel:(866)833-3138 Fax:(866)377-3355
Web Site: www.ymgigroup.com
Email: info@ymgigroup.com
Literature Part No: LIT-WMMS-(59) (2)-EW-DC IVTR-USER MANUAL-20130813
For WMMS Series of Product Single Zone (Cooling, Heat Pump)
Subject to Continuous Engineering Improvement without Prior Notice.
YMGI is the Trademark and Property of YMGI Group. Copyright of YMGI Group.
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
TECHNICIAN'S SERVICE MANUAL
DC INVERTER MULTIPLE ZONE (59) (2)
SYMPHONY CHOIR
INDOOR UNIT-WALL MOUNT (EW)
This product is designed and manufactured free from defects in material and workmanship under the normal use and
maintenance. Installation, operation, maintenance and service shall follow professional practices for regular cooling and
heating equipment, NEC, State, City or Local Codes and related manuals from us. Otherwise, damage to equipment or
property even injury to people may occur.
Installer: Currently licensed HVAC installer only, Read this manual before installation. Sign on the warranty registration card.
User: Keep this manual for future maintenance and service use.
Servicer: Use this manual for service reference.
LITERATURE: LIT-WMMS-(59) (2)-EW-DC IVTR-USER MANUAL-20130813
WMMS-09EW-V2B(59) (2)
WMMS-12EW-V2B(59)
(2)
WMMS-18EW-V2B(59)
(2)

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Summary of Contents for YMGI WMMS-09EW-V2B

  • Page 1 For WMMS Series of Product Single Zone (Cooling, Heat Pump) Servicer: Use this manual for service reference. Subject to Continuous Engineering Improvement without Prior Notice. YMGI is the Trademark and Property of YMGI Group. Copyright of YMGI Group. LITERATURE: LIT-WMMS-(59) (2)-EW-DC IVTR-USER MANUAL-20130813...
  • Page 2: Table Of Contents

    PART NAME 4. Have your installer read through the manual, before doing any installation. 5. All YMGI products are fully tested to pass rigorous safety and performance standards and other related TECHNICAL SPECIFICATIONS requirements in its industry, before being packed. We use famous brands high quality of compressors, motors, UNIT VIEWS,DIMENSIONS &...
  • Page 3: Limited Product Warranty Policies

    YMGI keeps on improving products with various engineering changes without prior notice. Such improvements By signing above, I acknowledge the liability and responsibility for any false statement or not telling all the facts, and I authorize YMGI to check the details of the filled above, and make its decision on warranty.
  • Page 4: Customer And Technician Must Read

    5) Some contractors/ technicians may not feel comfortable about installing the equipment that you purchase for them to install, and they prefer to purchase and install the equipment. You can contact YMGI directly to check * Have the technician check against all the items in the checklist of the Limited Product Warranty Registration and see if there have been any contractors in your area who have installed our products or similar.
  • Page 5 * Performing a load calculation for the room(s) you would like to air condition. Cooling requirements will be contractor's full installation invoice, to YMGI Group, within 7-days after original installation, in order for YMGI to review and process your warranty registration.
  • Page 6 We will be happy to assist you with any questions you may have concerning the 5) YMGI can arrange shipping for you, but not at YMGI's cost. If this option is chosen, a packing list and BOL will functions of your new unit.
  • Page 7: Important Notes

    CUSTOMER AND TECHNICIAN MUST READ IMPORTANT NOTES * Your technician will then need to verify and confirm the problem(s) before YMGI can ship out the replacement part(s). SAFETY WARNINGS Inaccurate or incomplete troubleshooting or part replacement will delay the repair. YMGI technical support will only speak READ THESE SAFETY WARNINGS COMPLETELY PRIOR TO ANY USE with a licensed/certified technician in regards to the repair of your unit.
  • Page 8: Part Name

    40' Container Subject to continuous improvement and change without notice. 40' HQ Container YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P13 OF 40...
  • Page 9: Unit Views,Dimensions & Mouning Bracket Clearance

    30.5" 32.7" 7.5" 7.9" 2.75" 2.75" 7.85" 7.85" 7.85" 7.85" YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P15 OF 40 P16 OF 40...
  • Page 10: Wiring Diagram

    These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. of shift each fan speed is 3.5 min. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
  • Page 11 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P19 OF 40...
  • Page 12: System Layout & Installation Clearance

    OVER 4" OVER 4" OVER 4" OVER 80" OVER 80" YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P21 OF 40 P22 OF 40...
  • Page 13 OVER 80" Indoor unit D OVER 4" OVER 4" OVER 80" YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P23 OF 40 P24 OF 40...
  • Page 14: Installation Locations & Cautions

    Check all the parts and accessories that are needed other than those provided with the unit. INSTALL WALL MOUNT PLATE It is strongly recommended to only use YMGI supplied or recommended parts and accessories. * Check unit to make sure the unit is good shape and ready to install.
  • Page 15 The copper pipe and the drain hose must be wrapped by piping wrap. Drain hose extending to drain line YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P27 OF 40...
  • Page 16: Connect Refrigerant Pipes Between Indoor And Outdoor Units

    YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P29 OF 40 P30 OF 40...
  • Page 17: Explosive View And Spare Parts List

    10542005 The above data are subject to change without prior notice. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P31 OF 40...
  • Page 18 3900019815 3900019816 The above data are subject to change without prior notice. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P33 OF 40 P34 OF 40...
  • Page 19 Jumping connector 4202300106 The above data are subject to change without prior notice. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P35 OF 40...
  • Page 20: Disassembly Procedure

    When repair, Carefully take out the evaporator and pay attention to protect the connecting pipe. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! P37 OF 40...
  • Page 21: Warranty And Tech. Support

    WARRANTY AND TECH. SUPPORT USER NOTES AND SERVICE LOG YMGI warrants to the purchaser/owner(s) that YMGI products be free from defects in material and USER NOTES workmanship under the normal use and maintenance, with the standard Limited Product Warranty Put down whatever questions you have or problems you have seen as a unit history: Policies that comes with the unit or sales package.

This manual is also suitable for:

Wmms-18ew-v2bWmms-12ew-v2b

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