YMGI 86 Series Installation Instructions & User Manual
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YMGI 86 Series Installation Instructions & User Manual

Symphony solar dc inverter single zone 09-24k, 24 & 48v dc solar powered cooling and heat pump
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INSTALLATION INSTRUCTIONS & USER MANUAL
SYMPHONY SOLAR DC INVERTER SINGLE ZONE (86) Series
09-24k, 24 & 48v DC Solar Powered Cooling and Heat Pump
Model Numbers:
WMMS-09KS-V2D(86)
WMMS-12KS-V2D(86)
WMMS-18KS-V2D(86)
WMMS-24KS-V2D(86)
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 equipm ent,
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
and Efficient Green World!
Wall Mount Mini Split Systems
NOTICE
SAFETY WARNING

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  • Page 1 WMMS-24KS-V2D(86) 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 Safety Precautions .............................

  • 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 5 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 one year 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: Safety Precautions

    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: Breif Introduction To Mini Split Wall Mount Systems

    A single-zone unit SHOULD NOT be used for the cooling or heating load of more than one single story room. Several single-zone ductless systems or multiple-zone ductless systems would be proper in this application. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 15 YMGI: Your Modern Green Idea Notes to Users YMGI appreciates your purchasing our solar heat pump system. We are committed to serving our customers, and ensuring that your heat pump will provide years of service. Our solar heat pump is manufactured under the strictest quality controls, to provide excellent performance and reliability.

  • Page 16: System Layout

    Day & Night saving. Like all DC-Inverter units, the YMGI’s (86) series solar heat pump runs totally on DC power. With solar charge controller, solar panels save extra energy into batteries, and batteries release to heat pump system when needed.
  • Page 17 Day & Night saving. Like all DC-Inverter units, the YMGI’s (86) series solar heat pump runs totally on DC power. With solar charge controller, solar panels save extra energy into batteries, and batteries release to heat pump system when needed.

  • Page 18: Connection Of Wires At Indoor And Outdoor Unit

    The laying of power cables must be done by qualified electricians and comply with the regulations of the local power supply authorities and with the standards of the electric appliance. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 19 Increased efficiency and lifetime of system. 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 control.

  • Page 20: Engineering Submittals Unit Specifications

    Parameters in the above table are measured in their rated working state according to GB/T7725-2004. Changes may appear according to the real world working conditions. Parameters may change due to the product improvement. Please refer to the products nameplate. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 21: Engineering Submittals Unit Dimensions

    8.07” WMMS-09E-V2D(86) 30.59” 9.84” 8.07” WMMS-12E-V2D(86) 35.83” 11.50” 8.07” WMMS-18E-V2D(86) 39.76” 12.40” 8.66” WMMS-24E-V2D(86) MOUNTING BRACKET CLEARENCE Note: Actual unit/part may appear differently than what is the above illustration. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 22 Gross 31.10” 20.87” 10.24” 11.42” 21.26” 88.18 99.21 31.10” 20.87” 10.24” 11.42” 21.26” 99.21 105.82 12.40” 19.69” 33.46” 22.83” 11.42” 121.25 127.87 13.39” 34.06” 27.95” 12.20” 25.20” 127.87 143.3 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 23: Air Conditioner Components

    YMGI: Your Modern Green Idea AIR CONDITIONER COMPONENTS The illustration below are based on a standard model of heat pump. Your unit appearance may differ depending on model and capacity. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 24: Installation Clearance Requirements

    YMGI: Your Modern Green Idea INSTALLATION CLEARANCE REQUIREMENTS GENERAL YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 25 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. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 26: Recommended Tools For Installation

    Cable Ties  Black Tape for Electrical Use  Electrical Meter 4) Trial Running Units and Inspection  Clamp Meter (Not Shown)  Manifold  InfraRed Thermometer (Not Shown) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 27 Check to be sure you have all the additional parts and accessories that are required for the installation and those provided with the unit.  It is strongly recommended to only use YMGI supplied or approved parts and accessories.  Be sure a properly sized circuit breaker is installed for the electric power suppling the units.
  • Page 28 To ensure normal operation of the solar heat pump, please operate the system in its recommended temperature range. Failure to do so may cause the system to trip a fault protection, cause condensate leakage or impact system efficiency. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 29 Check to be sure you have all the additional parts and accessories that are required for the installation and those provided with the unit.  It is strongly recommended to only use YMGI supplied or approved parts and accessories.  Be sure a properly sized circuit breaker is installed for the electric power suppling the units.

  • Page 30: Installation Of Indoor Unit

    Confirm the position of the holes and finish drilling to the depth required for anchors (NOT for screws).  Align the mounting plate holes with the holes drilled on the wall and put anchors or screws into the holes to secure the mounting plate. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 31 (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. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 32 STUFF AND SEAL THE HOLE FOR COPPER LINE SET/WIRE and CABLE/DRAIN HOSE • Use putty to seal the wall hole. Use a clamp (pipe fastener) to secure the pipe at the specified location. • YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 33: Installation Of Outdoor Unit

    Heat pump unit must be lifted up from ground level, allowing any condensate to drain out of the drain pan in condensing unit. Otherwise, condensate may ice up causing damage to the unit. We suggest using YMGI brackets and condensate drainage fitting accessories.

  • Page 34: Installation Of Pv Module

    2. YMGI does not provide any mechanical installation guide for PV-modules. As a result, YMGI will not provide any instructor or after service for the problems of mechanical installation of PV-modules. Please contact the panel manufacturer.
  • Page 35 Insert contact in the appropriate cross-section range of the crimping tool. Turn contact until the crimping Insert tabs face up. Release the clamping clip. Make sure the contact is secured. Locator: PV-LOC YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 36 The torque must be adapted to the solar cables used individually. Typical values are between 2.5Nm to 3Nm Push the couplers together until they lock. Check for correct engagement by tugging on the coupling. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 37 Mount the plug connection until it engages. Check to make sure it is locked in place by tugging on the coupling. To unplug the connection you will need the PV-MS tool YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 38: Wiring Outdoor Unit

    Check the nameplate for rated electrical data. Connect unit to the correct electrical power source.  Select power wire of proper type and size. YMGI suggests using UL approved 105°C / 221°F multi-strand copper wire for outdoor use. Refer to the following tables, for proper selection of wire gauge, size and circuit breaker.
  • Page 39 Reverse connecting the DC+ (POS+) and DC- (NEG-) wires can directly damage the air conditioner, and burn out the DC power source.  Reversing the connection of the inner wires inside this air conditioner can damage or destroy air conditioner components. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 40 NEVER REVERSE CONNECT THE RED(POS+) TERMINALS AND BLACK(NEG-) TERMINALS WITH POWER SOURCES POS+ AND NEG- POLE, OR YOU COULD BURN OUT COMPONENTS INSIDE THE AIR CONDITIONER OR THE POWER SOURCE. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 41 YMGI: Your Modern Green Idea YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 42 Note: Charge refrigerant (in cooling mode) gradually, starting from 30% calculated amount. Wait for 5 minutes before system pressure is stabilized and add more, to reach the suction pressure in the table above. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 43: Piping Connections

    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) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 44 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. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 45 Keep bending of the piping line to a minimum to avoid any possible negative impacts on the performance of the units.  Make a P-trap if the elevation drop difference is more than 24 inches, as illustrated below. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 46: Accessories Installation

    Supplied with fastening screws and anchor bolts.  Easy to install.  Honeycomb structure acts as an anti-vibration & humming absorption for quiet operation. Size(Inch) Capacity Model Btu/h RIST-0918-PVC 14.2 09K-18K RIST-1860-PVC 17.7 18K-60K YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 47: Vacuum Testing And Charging

    For Multi-Zone systems repeat this process for each zone with indoor units attached to it. If all zones are not being used, check the flared nuts on the unused valves, and ensure that they are tightened to avoid any potential system leaks. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 48 Show the customer how to remove and replace batteries in the remote control.  The customer should read the User Instruction manual to understand the different functions of the air conditioner. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 49 Warning: R410A refrigerant bears higher pressures than R22. of AC for Long Time in Cold Weather. Refrigerant should only be handled by a Licensed HVAC technician. Closely Check/Watch Refrigerant Charge Level YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 50: Check After Installation

    Refrigerant (pressures/temperatures at service values/pipes should be good).  Drainage (condensate/water flow should be dripping out of drainage pipe ONLY).  Noise (there should be not any abnormal sound). YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 51: Remote Control Buttons

    Mode and – buttons simultaneously. MODES. Push the MODE button to change the system’s operation. The mode sequence is: AUTO → COOL → DRY (Dehumidify) → HEAT → FAN. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 52: Remote Control Functions

    If the remote controller is lost or broken, you can use the emergency operation switch found on the Indoor Unit. When you push the button, emergency operation is selected. Push once YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 53 Press the MIN and HOUR buttons to change the clock to the desired time for the unit to automatically turn off.  The timer is set when the auto-off time stops flashing and the words “ON” and “OFF” are displayed next to the time. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 54: Common Faults And Solutions

    If your solar air conditioner is not working normally, please check above items before performing any maintenance or service. If the faults cannot be solved, please contact an HVAC technician or the distributor. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 55: Trouble Shooting And Error Codes

    Indoor Temperature Sensor malfunction Indoor Coiler Transmitter malfunction Freon leak or compressor malfunction Issue with indoor fan motor If any of the above malfunctions occur, please contact your HVAC technician or distributor. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 56: Cleaning And Care

    Install front panel Place two supports of the front panel into the slots, along the direction of arrows to cover and clasp the front panel. As show in figure. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 57 1. Turn main power off by disconnecting electrical power disconnect switch. 2. Clean filter and unit. 3. Cover the unit to keep dust or moisture out of the unit. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 58 YMGI: Your Modern Green Idea Indoor Electric Diagram Cooling only Outdoor Electric Diagram YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 59 YMGI: Your Modern Green Idea Cooling and heating Outdoor Electric Diagram YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 60: Rt Conversion Tables

    31.206 168.8 7.015 240.8 2.2568 26.6 197.38 98.6 29.947 170.6 6.7904 242.6 2.1989 28.4 187.02 100.4 28.746 172.4 6.5694 244.4 2.1427 30.2 177.27 102.2 27.6 174.2 6.4785 246.2 2.0882 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
  • Page 61 1.088E+01 1.127E+01 132.8 1.609E+00 1.678E+00 1.750E+00 44.6 1.006E+01 1.041E+01 1.078E+01 134.6 1.557E+00 1.625E+00 1.695E+00 46.4 9.641E+00 9.976E+00 1.032E+01 136.4 1.507E+00 1.574E+00 1.643E+00 48.2 9.245E+00 9.559E+00 9.878E+00 138.2 1.459E+00 1.525E+00 1.593E+00 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!

  • Page 62: User Notes And Installation/Service/Maintenance Notes

    Put down any questions you have or problems you have seen as a unit history: Service 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 63 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 64 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-09ks-v2d(86)Wmms-12ks-v2d(86)Wmms-18ks-v2d(86)Wmms-24ks-v2d(86)

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