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YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
INSTALLER'S INSTRUCTION & USER'S MANUAL
DUCTLESS INDOOR UNIT-WALL MOUNTED (EW)
VRFI-07EW-D2B(55)5
VRFI-09EW-D2B(55)5
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: Must be 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.
DC INVERTER MULTIPLE ZONE (55)5
Variable Refrigerant Flow (VRF)
VRFI-12EW-D2B(55)5
VRFI-18EW-D2B(55)5
SAFETY WARNING
VRFI-24EW-D2B(55)5
NOTICE
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Table of Contents
Related Manuals for YMGI VRFI-07EW-D2B(55)5
Summary of Contents for YMGI VRFI-07EW-D2B(55)5
- Page 1 VRFI-18EW-D2B(55)5 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 ................... 9 Why Does YMGI Group Require Installation and Service to Be Performed 100% By Currently Licensed or Certified HVAC Technicians/Contractors ..........10 Suggestions to Aid You in Hiring an HVAC Contractor ................10 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 YMGI Group is not responsible for any damage or loss due to Do-It-Yourself(DIY), self-installation or any improper installation, improper operation, improper service or natural disasters of any kind.
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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 With the information provided above, you will know some things to look for and questions you can ask. If at any time you feel there may be an issue with the installation, please have your technician contact YMGI at...
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Page 7: Installing Technician/Contractor's Responsibilities
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
YMGI Group upon request. Warranty parts may be new or refurbished. All parts are tested and approved before shipping. At no time does YMGI Group warrant labor cost of any type. Warranty will start from the date of a successful installation at the original installation location, or 90 days as of original shipping date from YMGI Group, whichever comes first. - 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: 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 11: 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 12 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 13: Indoor Unit Diagram
Indoor Unit Diagram Rated Operating Condition Indoor Side Condition Outdoor Side Condition Dry Bulb Temp Wet Bulb Temp Dry Bulb Temp Wet Bulb Temp C°(F°) C°(F°) C°(F°) C°(F°) Rated Cooling 27(80.6) 19(66.2) 35(95) 24(75.2) Rated Heating 20(68.0) 15(59.0) 7(44.6) 6(42.8) -
Page 14: Specification Sheet
44 1/2 x 15 11/16 x 13 (W x D x H) Net Weight/Gross Lbs. 22/27.6 22/27.6 27.6/33.1 27.6/33.1 33.1/40.8 Weight Refrigerant R410A UNIT DIMENSIONS Model mm (inches) mm (inches) mm (inches) VRFI-07EW-D2B(55)5 VRFI-09EW-D2B(55)5 (33-1/4) (10-7/8) VRFI-12EW-D2B(55)5 VRFI-18EW-D2B(55)5 (37) (11-3/4) (7-7/8) 1008 VRFI-24EW-D2B(55)5 (39-11/16) (12-9/16) (8-11/16) - Page 15 MOUNTING BRACKET CLEARENCE Note: Actual unit/part may appear differently than what is the above illustration. Electrical Installation Model Power Supply MCA(A) MOP(A) VRFI-07EW-D2B(55)5 VRFI-09EW-D2B(55)5 VRFI-12EW-D2B(55)5 208/230V-1ph-60Hz VRFI-18EW-D2B(55)5 VRFI-24EW-D2B(55)5...
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Page 16: Recommended Tools For Installation
RECOMMENDED TOOLS FOR INSTALLATION 1. Mounting Indoor & Outdoor Units and Running Piping/Wiring Ruler Stud-Finder Dry-Wall Saw Electric Drill 3” Hole Saw Drill Extension Hammer Drill and Bit Measuring Tape Level Flash Light Screw Driver (Phillips and Flat) Hammer Knife Scissors Goggled Glasses Mask... -
Page 17: System Layout & Installation Clearance
SYSTEM LAYOUT & INSTALLATION CLEARANCE... - Page 18 SYSTEM LAYOUT & INSTALLATION CLEARANCE...
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Page 21: Installation-Location Selections
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 22 PIPING AND WIRING SIZES-UNITS Unit Connection Copper Min./Max. Length Wires from Outdoor Min. Wire Size Fuse is Factory Outdoor – Indoor Units Pipe Sizes +/- Elevation to Indoor Unit Installed At Indoor 1/4” Liq. / 3/8” Gas 15/50/30/15 N(1)/2/3/G 18AWG Control Board At Indoor 1/4”...
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Page 23: Installation-Indoor Units
Steps to Mount Plate Mark all drill positions. At least 4 anchor holes are required, one at each perimeter corner of the plate. these are needed to secure the plate, where the bold arrows are pointing, as shown in the picture above. Refer to the specification sheet for unit weight so that enough anchors are installed at the proper locations. - Page 24 REFIT DRAIN HOSE FROM THE RIGHT TO THE LEFT SIDE If the drain hose needs to be refitted from its original position (right side) to left side of the indoor unit, careful handing is necessary as not to damage the unit. ...
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Page 25: Connect Refrigerant Pipes Between Indoor And Outdoor Units
CONNECT REFRIGERANT PIPES BETWEEN THE INDOOR AND OUTDOOR UNITS First, connect the copper tubes at indoor unit. Bend the pipes accordingly using pipe bending tools. Do Not hand bend the pipes as this could kink the pipe. Extra length is required for future service. REFRIGERANT PIPES For a distance other than 25' between indoor and horizontal venting condensing units, refer to the following table for copper sizes. - Page 26 CONNECT REFRIGERANT PIPES: Refrigerant Pipe Length and Height Btu/h Length (ft.) Height (ft.) 3.82 3.82 24.3 31.4 Connect Copper Pipes-Flare/Nut Connection at Both Indoor and Outdoor Units Proper torque shall be applied to create a good connection at the female nut, flare and male nut, as recommended in the following table.
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Page 27: Piping Guide
PIPING GUIDE Set the packed pipes in a Do not unwind only one end of vertical position and then the coiled pipes. unwind them slowly. Use pulley or a bending tool to Do not make any sharp or small ensure a safe bending radius. radius bends. - Page 28 "SLEEP" BUTTON: This function will increase or decrease the set temperature depending on what mode the unit is running in. When SLEEP mode is turned on, while in cooling mode, the temperature will automatically increase 0.5 to 1.0 degree once every 30 minutes to one hour several times over a period of 2 hours and remain at that temperature until SLEEP mode is turned off.
- Page 29 Note: Under the Dry Mode, the fan speed isn't adjustable, low fan speed is imperative. "CLOCK" BUTTON: The time function runs on a 24-hour clock. To set the time press the CLOCK button once. You will see a flashing clock appear on the remote. Press the "UP" button to increase the time; press the "DOWN" button to decrease the time until the desired time is set.
- Page 30 This is a common drawback of AC/HP units made by other manufacturers. With YMGI's I FEEL feature, this can be avoided, and your comfort level can be improved. When you press the I FEEL button on the remote control, the unit will use the temperature where the remote is located as its target temperature control.
- Page 31 ALPHA NUMERIC DISPLAY The setting temperature range for the unit is 61°F to 86°F. • Under AUTO mode the unit will display 77°F for cooling and 68°F for heating modes. • INTRODUCTION FOR SPECIAL FUNCTION About Blow function This function indicates that there is moisture on the evaporator of the indoor unit and will continue to blow after the unit has stopped to avoid mold.
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Page 32: Operation In An Emergency
ABOUT MODE CLASH/CONFLICT BETWEEN INDOOR UNITS If any two indoor units are controlled to run the in the following modes, the indoor unit will run into mode clash or conflict. All indoor units will stop to run and show Protection/Error code E7, unless the unit is turned-off and then turned back on: Some on HEAT Mode, while others on COOL Mode and/or DRY(Dehumidify) Mode and/or FAN Mode. - Page 33 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 unit has displayed on the front panel.) Never use water that has a temperature above 113°F to wash the panel or it could cause deformation or discoloration.) 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.
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Page 34: Checking Units Prior To Contacting Your Technician
To Remove the Air Filter By holding onto the bottom slot of the air filter slightly push the filter in an upward at a slight angle and pull downward carefully. Cleaning To clean the dust adhering to the filters, you can either use a vacuum cleaner, or wash them with warm water and a neutral detergent, the water should be below 113°F. - Page 35 Following checks prior to contacting an authorized service center may save you time and costs. Phenomenon Normal or Abnormal The unit doesn't deliver cooling or heating, immediately after If the unit is powered off, and then restored, it will not run the compressor the unit is restarted (remote control or power resuming).
- Page 36 Must stop all unit operations, disconnect power and contact your service technician, in the following situations: 1. Harsh sound is heard 2. Bad odor is detected; 3. Water is leaking out of the indoor unit; 4. Circuit breaker trips or fuse is blown a few times; 5.
- Page 37 Put down whatever questions you have or problems you have seen as a unit history: Date Noes Asked Your Did You Ask YMGI Technician for Help? Tech. for Help? USER NOTES Put down whatever questions you have or problems you have seen as a unit history:...
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