YMGI Symphony SOLO Series Installer's Instruction & User's Manual
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YMGI Symphony SOLO Series Installer's Instruction & User's Manual

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INSTALLER'S INSTRUCTION & USER'S MANUAL
SYMPHONY SOLO DC INVERTER SINGLE ZONE (58)4 EU
Model Numbers:
WMMS-18C-V2B(58)4
WMMS-24C-V2B(58)4
WMMS-30C-V2B(58)4
WMMS-36C-V2B(58)4
WMMS-42C-V2B(58)4
WMMS-48C-V2B(58)4
WMMS-60C-V2B(58)4
WMMS-18EU-V2B(58)4
WMMS-24EU-V2B(58)4
WMMS-30EU-V2B(58)4
WMMS-36EU-V2B(58)4
WMMS-42EU-V2B(58)4
WMMS-48EU-V2B(58)4
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.
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.
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.
YMGI, Engineered Comfort Products for A Sustainable
Floor/Ceiling Mount Mini Split Systems
18k-48k, 18-23 SEER Cooling and Heat Pump
SAFETY WARNING
and Efficient Green World!
NOTICE

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  • Page 1 WMMS-48EU-V2B(58)4 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.

  • Page 2: Table Of Contents

    Limited Product Warranty ........................8 Limited Product Warranty Registration Card ..................10 Why Does YMGI Group Require Installation and Service to Be Performed 100% By Currently Licensed or Certified HVAC Technicians/Contractors ..........11 Suggestions to Aid You in Hiring an HVAC Contractor ................11 Introduction to Mini Splits ........................

  • Page 3: Introduction

    Refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs), may affect the ozone layer. Not all refrigerants have the same potential impact on the environment. YMGI Group advocates for the responsible handling of all refrigerants including industry replacements for CFCs such as HCFCs and HFCs.
  • Page 4 This document and the information contained therein are the sole property of YMGI Group and shall not be used or reproduced in whole or in part, without the written permission of YMGI Group. YMGI Group reserves the right to revise this manual at any time and to make changes to its content without obligation to notify anyone about any modifications, revisions or changes.

  • Page 5: Note From Ymgi - Must Read

    YMGI Group is the MEDIA AUTHORITY: YMGI Group, located in O'Fallon, MO 63366 is the author of all media produced for its products and is the only party able to give any additional explanation for any data, definitions and or descriptions found within any of its media, including but not limited to YMGI product brochures, manuals, pamphlets, catalogs, and videos.
  • Page 6 In an effort to help protect our customers from possible faulty installations that can lead to premature unit failure, YMGI provides the above information for you and the technician. You can observe while your system is being installed, even though your observation is not a guarantee your system is being or has been installed properly and professionally.

  • Page 7: Installing Technician/Contractor's Responsibilities

    You will be solely responsible for the entire installation that you have been contracted. Make sure you have all the materials you need to properly, completely and correctly finish the installation. The YMGI units and accessories may be just a portion of what you will need for the project. When support issues arise, remember YMGI employees and YMGI distributors/sales, dealers and agents are not installers and may only provide suggestions.

  • Page 8: Limited Product Warranty

    Compressor: YMGI will warrant the compressor of an YMGI-validated and approved warranty filing, for a period of 7 years from the date of successful installation at its original installation location. Parts: YMGI will warrant parts of an YMGI-validated and approved warranty filing, for two years from the date of successful installation at original installation location.
  • Page 9 YMGI Technical support the exact part(s) needed to fix the problem(s). 2. YMGI will check the customer's warranty filing. There will be no charge for Parts with a validated and approved warranty. Any Parts that have not been validated and approved or have an invalid warranty filing resulting in an unapproved warranty request, will be charged accordingly.

  • Page 10: Limited Product Warranty Registration Card

    YMGI: Your Modern Green Idea YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 11: Why Does Ymgi Group Require Installation And Service To Be Performed 100% By Currently Licensed Or Certified Hvac Technicians/Contractors

    6. Some contractors/technicians may not feel comfortable about installing equipment that has been purchased by someone other than themselves. They prefer to purchase and install the equipment themselves. You can contact YMGI directly to check and see if there are contractors in your area who have installed our products or any similar products.
  • Page 12 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 help locating a qualified repair or service technician.
  • Page 13 YMGI: Your Modern Green Idea YMGI Group will not be responsible for any personal injury or any property damage caused by improper or incorrect installation, improper service or maintenance or by not following the instructions listed in this manual. DO NOT pull on the power supply cords or refrigeration lines that are connected to the indoor and outdoor units.

  • Page 14: Introduction To Mini Splits

    Several single-zone ductless systems or multiple-zone ductless systems shall be proper in this regard. These units are designed for applications at:    Residential Institutional Commercial    Light commercial Industrial Hospital YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 15: System Diagram

    YMGI: Your Modern Green Idea System Diagram and Compatible Indoor Unit Types YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 16: Pipe Size And Refrigerant Charge

    Communication Cable: Recommended cable - 18/2 AWG stranded bare copper conductors THHN 300V unshielded wire Note: Use shield cable if installation is in close proximity of RF and EMI transmitting devices. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 17: Specification Sheet

    Outdoor Unit Dimensions 38.625 x 31.125 x 38.625 x 31.125 x 43.625 x 43.25 x 37.75 x 53.125 x 37.6 x 27.5 x 14.1 (WHD) 15.5 15.5 15.75 14.75 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 18: Recommended Tools For Installation

    3. Electrical Related Installation Wire Cutter Wire Stripper Sharp Plier Cable Ties Black Tape for Electrical Use Electrical Meter 4. Trial Running Units and Inspection Clamp Meter Manifold Infrared Thermometer YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 19: Standard Parts

    Connects the Flare Nut liquid pipe Outdoor Unit Accessories Name Appearance Usage Drain Plug Plugs the unused drain hole Connects with field supplied Drainage Connecter drain pipe YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 20: Installation Location Selection

    Leave enough free space to allow access for routine maintenance. • Do not install in a laundry room or by a swimming pool due to chemicals corroding indoor unit coil. • YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 21: Installation - Outdoor Units

    Provide the space shown below, so that the air flow is not blocked and future service and maintenance can be performed. Minimum Distances Outdoor Unit in (mm) 40 (1000) 20 (500) 20 (500) 80 (2000) 20 (500) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 22: Installation-Indoor Units Dimensions

    (1420 mm) (245 mm) (1354 mm) (280 mm) (700 mm) 66 7/8” 9 5/8” 64 3/8” 11” 27 1/2” WMMS-48EU-V2B(58)4 (1700 mm) (245 mm) (1634 mm) (280 mm) (700 mm) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 23 6. Carefully remove indoor unit from anchor bolts in order to begin making piping connections. NOTE: Do not reinstall air inlet grille or side panels until instructed. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 24: Installation-Ceiling Mounted Indoor Unit Installation

    After checking the positioning of the indoor unit, securely tighten the hanger nuts to fasten the indoor unit in place. NOTE: Do not reinstall air inlet grille or side panels until instructed. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 25: Outdoor Unit Installation

    15-3/4” WMMS-36EU-V2B(58)4 (1107) (440) (1100) (631) (400) 43-5/8” 17-3/8” 43-1/4” 24-7/8” 15-3/4” WMMS-42EU-V2B(58)4 (1107) (440) (1100) (631) (400) 37-3/4” 16-1/4” 53-1/8” 22-1/2” 14-3/4” WMMS-48EU-V2B(58)4 (958) (412) (1349) (572) (376) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 26 All other holes must be sealed with plugs (included) to avoid water leaks, except for the drain pipe mounting hole. Route drain hose to safe location for disposing of condensate water. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 27: Piping Installation

    When height difference between indoor unit and outdoor unit is more than 30 feet, an oil return bend should be added for every 20 feet of connection pipe as shown. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 28 44 to 48 60 to 65 Over tightening may damage flare connections and cause leaks. 8. Individually insulate each bare refrigerant pipe and joint as shown below to prevent sweating. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 29 1/2” (25 mm) 33 to 37 45 to 50 5/8” (16 mm) 5/8” (29 mm) 44 to 48 60 to 65 Over tightening may damage flare connections and cause leaks. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 30 Water must drain freely from the unit. If not, check the pipe slope or see if there are any pipe restrictions.  Verify all piping joints are leak free. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 31: Wiring Installation

    3. If the indoor unit communication wire (to the outdoor unit) and power wire are connected incorrectly, the air conditioner may be damaged. 4. Ground both indoor unit and outdoor unit to earth ground in accordance with the applicable local and national codes. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 32 L1 and L2. Connect ground wire to grounding screw. Secure electrical wires inside wire clamp/strain relief. Verify wires are secure, not loose and no external force on wires affects the connections at the terminals. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 33 NOTE: When connecting the power wire, make sure that the phase of the power supply matches with the exact terminal board. If not, the compressor will rotate reversely and run improperly. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 34: Testing And Inspection

    For the additional amount, see the table below. Additional Refrigerant Model oz./ft. (g/m) 18,000 0.3 (30) 24,000 0.6 (60) 30,000 0.6 (60) 36,000 0.6 (60) 42,000 0.6 (60) 48,000 0.6 (60) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 35 Note: Do not allow air to enter the connection pipe when removing the hose. Replace service valve caps and tighten. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 36 Verify the indoor discharge air is heating the room. □ Press the OFF button on the Remote Controller. • Verify Remote Controller display turns OFF and the system shuts OFF. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 37: Troubleshooting Prior To Contacting Your Technician

    In dry mode, the indoor fan may stop for up to three minutes during the compressor off delay. • Otherwise, you should contact a qualified service professional for assistance. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 38: Protection Signs And Error Codes

    If evaporator temperature sensor Sensor Sensor malfunction occurs in fan mode, only the error code is displayed and the Malfunction indoor unit will operate normally. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 39 The unit will not recover automatically. If thermo junction cannot be Memory Chip Board eliminated after switching the unit off and on for several tries, replace the outdoor main control board. Malfunction YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 40: User Notes And Installation/Service/Maintenance Notes

    Put down whatever questions you have or problems you have seen as a unit history: Asked Your Did You Ask YMGI Date Notes Technician for Help? Tech. for Help? YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 41 Put down whatever questions you have or problems you have seen as a unit history: Installation Company Name, Technician Job Not Performed Technician Checklist Date Name, Phone & HCAC License # by Technician Completed Fully? YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 42 YMGI: Your Modern Green Idea SERVICE / MAINTENANCE NOTES Technician’s Company Name, Technician Date Contents of Service / Maintenance Name, Phone & HCAC License # YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 43 YMGI: Your Modern Green Idea YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 44 YMGI: Your Modern Green Idea YMGI is dedicated to designing, manufacturing and distributing the highest quality, energy saving and environmentally friendly air conditioner and heat pump products, while providing the best service and support to all of our customers. Our mission is to help build a sustainable, efficient and green world.

This manual is also suitable for:

Wmms-18c-v2b(58)4Wmms-24c-v2b(58)4Wmms-30c-v2b(58)4Wmms-36c-v2b(58)4Wmms-42c-v2b(58)4Wmms-48c-v2b(58)4 ... Show all

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