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INSTALLER'S INSTRUCTION & USER'S MANUAL
SYMPHONY SOLO DC INVERTER SINGLE ZONE (78)1
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
Wall Mount Mini Split Systems
09-36k, 18-23 SEER Cooling and Heat Pump
SAFETY WARNING
and Efficient Green World!
NOTICE
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Table of Contents
Related Manuals for YMGI WMMS-12K-V2B(78)1
Summary of Contents for YMGI WMMS-12K-V2B(78)1
- Page 1 09-36k, 18-23 SEER Cooling and Heat Pump 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.
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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.
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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.
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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 a 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 a 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.
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Page 10: Limited Product Warranty Registration Card
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 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.
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Page 14: Breif Introduction To Mini Split Wall Mount Systems
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: Unit Diagram
SAMPLE ILLUSTRATION OF INSTALLED SYSTEM YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 16: Specification Sheet
880 / 650 / 450 800 / 650 / 450 840 / 650 / 500 850 / 550 / 500 850 / 550 / 500 850 / 550 / 500 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 17 37 x 25.19 x 15.19 39.19 x 28.75 x 17.5 41.34 x 35.81 x 19.63 41.34 x 35.81 x 19.63 41.34 x 35.81 x 19.63 W x H x D (With pipe) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 18: Installation Diagram And Unit Clearance
INSTALLATION DIAGRAM YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 19: Installation-Location Selections
9000 Btu/h – 18000 Btu/h 0.6450 24000 Btu/h 0.9675 30000 Btu/h – 36000 Btu/h 1.2900 If the height or pipe length is outside the scope of the above table, please consult YMGI. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 20: Recommended Tools For Installation
Cable Ties Black Tape for Electrical Use Electrical Meter 4) Trial Running Units and Inspection Clamp Meter (Not Shown) Manifold Infra Thermometer (Not Shown) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 21: Installation-Indoor Units
RECOMMENDED MOUNTING BRACKET DIAGRAMS AND DIMENSIONS For 9000 Btu/h Series Models Bracket Width: 522mm / 20.6 in. For 12000 Btu/h Series Models Bracket Width: 592mm / 23.3 in. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 22 18k & 24k of 21 SEER Series 170 / 6 11/16” 40 / 1 37/64” 70 / 2 ¾” 30K & 36k of 17 SEER Series 64 / 2 33/64” 41.2 / 1 39/64” YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 23 If you are using a single drainage connection, make sure the drain hole on the unused side is securely plugged. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 24 Gas Pipe 1/2” 18k Btu/h 24 / 15/16 0.6 / 0.024 11~15 ft.-lbs 15~20N~m or Gas Pipe 5/8” 27 / 1 1/16 24k-36k Btu/h 0.6 / 0.024 11~15 ft.-lbs YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 25: Installation-Outdoor Units
Anchor bolts must be embedded into 3000 PSI minimum concrete, at a distance of 4 ½ inches from concrete edge. The concrete thickness must exceed 1.5 times the anchor depth. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 26: Connect Refrigerant Pipes Between Indoor And Outdoor Units
1/2” (25) 1/2 (12.7) 37 - 41 50 - 55 5/8” (29) 5/8 (15.9) 44 - 48 60 - 65 Note: Over tightening may damage flare or cause leaks. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 27 Don't cut too fast or apply too much pressure. Turn and tighten the tube cutter slowly. Remove residual and de-bur the cut edge. The cut edge should be smooth and clean. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 28 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 entering inside. • YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 29: Piping Guide
Refrigerant Pipe Min/Max. Length, Rise and Drop Height Btu/h Min. Length (ft.) Max. Length (ft.) Max Rise Height (ft.) Max. Drop Height (ft.) 09K - 12K 18K - 24K YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 30 If not possible, connect the appliance to a double-pole circuit breaker with contact separation of at least 3mm placed in a position that is accessible after the installation. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 31: Wiring Diagram
Wiring Diagrams 115V Systems 208/230V Systems Diagrams are for reference only. Actual terminal may appear different. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 32: Vacuum Testing And Charging The System
6. Turn off the vacuum pump 7. Turn the 2-way and 3-way valve stems to fully close the valves. Disconnect the flexible vacuum pump hose. 8. Replace and tighten all valve caps. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 33: Testing The System
C) and wait for the unit to turn on. It may take up to 3 minutes for the unit to start. Does the compressor and outdoor fan turn on in HEAT mode? YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 34: Remote Control-Button Name & Functions
Used to start or stop the horizontal adjustment of the louver. You can set the airflow direction left or right. MUTE Used to turn on and off the Mute operation. Fan speed is automatically set to Low. ° HEAT 17. 8 Set the 8° heating mode YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 35: Operation Of Remote Control
When replacing batteries, use new batteries of the same type. Optional Remote Controller Cradle The remote controller may be stored in a (optional) wall mounted cradle. The wall mounted cradle can be purchased separately. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 36 HEATING Mode is not available on Cooling Only models. In DRY Mode, the unit can decrease or increase 7°F above or below the temperature set on the remote controller. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 37 It is best to not allow the vertical louver to point downward for prolonged periods in COOL or DRY mode, to prevent condensed water from dripping. If the unit does not have four way airflow control function, you can adjust the horizontal louvers manually. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 38 Press the button again, and the swing will stop. For horizontal airflow direction, please refer to the previous page for details. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 39 TIMER OFF The TIMER OFF setup, adjustment and cancel functions work the same way as described above, allowing you to automatically turn off your system at your set desired time. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 40 SUPER mode is not available while heating. It is available in COOLING only. For first generation units, you cannot set temperature in SUPER Mode, but you can press the increase or decrease temperature buttons to escape SUPER Mode YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 41: Wifi Control Setup
To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of the end product. “Contains Transmitter module FCC ID: 2AGCCAEH-W4B1”. To satisfy IESD exterior labeling requirements, the following text must be placed on the exterior of the end product. “Contains Transmitter module IC: 20778-AEHW4B1”. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 42: Protection Signs And Error Codes
Unit does not have enough refrigerant protection Outdoor ambient temperature sensor connection is loose Outdoor ambient ★ ★ Outdoor ambient temperature sensor failure temperature sensor issue Outdoor control board failure YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 43 Detection circuit of the sensor on control panel failure Pressure switch failure System high pressure ○ ○ Pressure detection switch on the control panel failure failure protection System pressure measurement exceeds system limit YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 44 If the error code can’t be displayed on the indoor unit, you will need to check the LED display board on the outdoor unit. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 45 Other component has a short circuit Communication issue Connection wires connection loose ★ ○ between Outdoor unit and Outdoor board or drive board failure driver YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 46 Incorrect drive board installed Outdoor board chip issue Incorrect compressor installed Radiator sensor failure Outdoor unit radiator Control panel detection circuit on the overheated sensor failure YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 47 Indoor fan motor running ★ ★ ○ Fan motor failure abnormally Indoor control board failure Indoor grounding ★ ★ ★ Indoor control board failure ○ protection failure YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 48 Outdoor unit and Outdoor board or drive board failure driver EEPROM chip is loose EEPROM chip is installed backwards ○ Outdoor EEPROM issue EEPROM chip failure YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 49 Pressure switch failure Pressure detection switch on control board High system pressure failure Measured value of system pressure exceeds protection system pressure limit YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 50 A failure is displayed when the settings data does not match after the EEPROM self-checks two times. A ground signal failure is displayed if the signal is not detected after the air conditioning system is powered ON. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 51: Indoor Coil And Temperature Sensor Parameters
1.76 3.717201166 11.071 1.57689691 1.705 3.747244673 10.613 1.62286005 1.652 3.776658768 10.176 1.66928515 3.805970149 9.76 1.71601615 1.551 3.834009923 9.363 1.76311968 1.503 3.861880963 8.985 1.81043663 1.457 3.888973616 8.624 1.85805887 1.413 3.91524643 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 52 4.228855721 4.797 2.57653834 0.904 4.247168554 4.622 2.62291710 0.878 4.265640683 4.453 2.66931854 Note: The AD value in the table is calculated on the basis of the pull-down resistor is 5.1k. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 53: Installation Accessories
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 54: 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 55 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. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 56 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!
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Page 57: User Notes And Installation/Service/Maintenance Notes
Put down any questions you have or problems you have seen as a unit history: Asked Your Did You Ask YMGI Date Noes Technician for Help? Tech. for Help? YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 58 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 59 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 60 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.