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INSTALLATION INSTRUCTIONS & USER MANUAL
DC INVERTER SPLIT TYPE HEAT PUMP (Down to -22°F Ambient)
Model Numbers:
VRUO-2436HP-U2B(54)
VRUO-4860HP-U2B(54)
Thermostat-Controlled
Universal Outdoor
Condenser Works With:
1. Any Brand of American
Style Indoor Units, and
2. YMGI Indoor Unit
Universal VRUI
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
and Efficient Green World!
OUTDOOR CONDENSING UNIT
NOTICE
SAFETY WARNING
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Summary of Contents for YMGI VRUO-2436HP-U2B(54)
- Page 1 Universal VRUI 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 Introduction to Unitary Systems ...................... -
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 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.
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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.
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Page 14: Introduction To Unitary Systems
Apartments Homes Offices, Restaurants, Gyms, etc 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 And Compatible Indoor Units
YMGI: Your Modern Green Idea System Diagram YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 16: Product Introduction
Optional Accessories Outdoor Unit Accessories Name Appearance Qty. Usage To connect with the unit Connection pipe and gas pipe To connect with the unit Connection pipe and liquid pipe YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 17: Installation Preparation
7. Away from any object that may get the air conditioner generating noise. 8. Install the outdoor unit at a place where condensate can be easily drained. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 18: Unit Dimensions
YMGI: Your Modern Green Idea UNIT ENGINEERING SUBMITTALS-MECHANICAL OUTDOOR UNIT Dimensions In. (mm) Model 37" 20-7/8" 32-1/4" 24" 19-1/8" 18-1/8" VRUO-2436HP-U2B(54) (940) (820) (610) 39 3/8” 53 47/64” 14 9/16” VRUO-4860HP-U2B(54) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 19: Specification Sheets
Locked rotor Amp (L.R.A) － Thermal protector Internal Internal Crankcase － Type FW68DA or equivalent FW68DA or equivalent Refrigerant oil Charge 1.12 1.35 Volume 3000 4700 Air Flow Volume 5100 7990 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 20 Noise is tested in the semi-anechoic room, so it will be slightly higher in operation due to environmental change. "1" is tested under standard conditions. "2" is tested under rated conditions according to CE/Eurovent standard: * Fan different speed YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 21: Diagrams Of Unit Space And Clearances
＞H ＜H ≥4” ≥39.5” ≤1/2H ≥10” ≥78.75” ≥39.5” ≤H ≥10” ≥78.75” ≥39.5” ＜H 1/2H＜H ＞H Prohibited B,D,E ≤1/2H ≥4” ≥78.75” ≥39.5” ≤H ≥8” ≥78.75” ≥39.5” ＞H 1/2H＜H ＞1/2H Prohibited YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 22 ≤H ≥12” ≥98.5” 1/2H＜H ≤1/2H ≥12” ≥78.75” ≥39.5” ≤H ≥12” ≥98.5” ≥39.5” ＜H 1/2H＜H ＞H Prohibited B,D,E ≤1/2H ≥10” ≥98.5” ≥39.5” ≤H ≥12” ≥98.5” ≥39.5” ＞H 1/2H＜H ＞1/2H Prohibited YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 23 YMGI: Your Modern Green Idea When outdoor units are installed in rows Units (in.) (mm) ≤ 1/2H B ≥10” B ≥ 12” ≤ H 1/2H H Prohibited YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 24 YMGI: Your Modern Green Idea When outdoor units are installed one above another Units (mm) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 25: 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 26: Outdoor Unit Installation
6.0MPa. The longer the connection pipe is the worse cooling and heating performance it has. When the drop between indoor and outdoor units is larger than 10m, an oil return bend should be added every 6 meters. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 27 2. Outdoor unit is above the indoor unit. It’s necessary to add oil return bend and non-return bend at the lowest and highest position of the vertical pipe, as shown below: YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 28 3. If the pipe is repeatedly bent or extended, it will become hard and difficult to be bent or extended. So do not bend or extend the pipe for more than 3 times. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 29 Check whether gas leakage occurs to the connection pipe and then apply thermal insulation, as shown below. Wind sponge around the joint of gas pipe and heat insulation sheath of gas collecting pipe. Be sure to connect gas pipe after liquid pipe is connected. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 30 Screw on the flare nut of the flaring connecting pipe on the outdoor unit valve. Screw Connection Pipe diameter (in.) Tightening torque (N·m) 15-30 35-40 45-50 60-65 70-75 80-85 YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 31: Connection Pipe Vacuum Pump And Leak Detection
Note: The gas and liquid valve can be opened fully only after the manifold valve assembly is removed. 8. Place back the caps of the liquid valve, gas valve and also the service port. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 32: Installation Of Drain Pipe
The whole pipeline should be wound with insulating tape and fixed onto the wall with saddles. If the outdoor unit is above the indoor unit, arrange the pipeline according to the following diagram. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 33 Install the drain fitting and rubber washer on the outdoor unit chassis and connect a drain hose to it as shown in the figure. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 34: Electrical Installation
13. The wire gauge of power cord should be large enough. Damaged power cord or other wires must be replaced by specialized wires. Wiring work must be done according to national wiring rules and regulations. 14. This outdoor unit has a heating four-way valve. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 35 3. How to connect the temperature controller wire and power cord. Lead the temperature controller wire and power cord through the insulation tube. Then fix the wires with wire clamps (as shown in the following figure.) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 36 Please use wire clamps to secure the external covers of temperature controller wires. ④ (Insulators must be clamped securely, otherwise, electric leakage may occur.) ⑤ Ground wire should be connected. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 37: Wiring Outdoor Unit
When connecting the power cord, make sure the phase sequence of the power supply matches with the ⑧ corresponding terminals, otherwise the compressor will get reversed and operate abnormally. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 38 Power cord should be secured along with the right side plate and fixed to the hook with a wire clamp so as to avoid contacting the pipeline. The temperature controller wire should also be laid along with the right side plate but away from the power cord. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 39: Check After Installation
3 minutes to restart. Even if you press “ON/OFF” button on the remote control, it will not start up right away. 2. If there’s no display on the wired control, it’s probably because the connection wire between the units and the temperature controller are not connected. Please check again. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 40: Installation Of 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 41: Maintenance
Check the above items and use the corresponding corrective measures. If the air conditioner continues to function poorly or improperly, stop the air conditioner immediately and a YMGI’s authorized HVAC technician and have them repair the unit. -
Page 42: Error Codes
If the unit operates abnormally (for example, bad odor), please stop the unit immediately and shut off or disconnect power. Contact YMGI’s authorized service center. If the unit continues to run abnormally, it can damage the unit and/or cause ①... -
Page 43: Unit Maintenance
If the outdoor unit is rusty, coat the rusty location with paint to prevent it from expanding Parts Replacement Parts are available from YMGI Group. To order parts please contact us at (866)833-3138 or 636-272-6800. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! -
Page 44: Notice On Maintenance
Where electrical components are being replaced, they should be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines should be followed. If in doubt consult YMGI’s technical department for assistance. The following checks shall be applied to installations using flammable refrigerants 1. - Page 45 11. Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 46 When oil is drained from a system, it shall be carried out safely. After-Sales Services Any quality or other issues encountered in the purchased air conditioner, please contact YMGI for after-sales service. Please contact us at (866)833-3138 or 636-272-6800.
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Page 47: Wiring Diagrams
YMGI: Your Modern Green Idea WIRING DIAGRAM VRUO-2436HP-U2B(54) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 48 YMGI: Your Modern Green Idea VRUO-4860HP-U2B(54) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 49 Email: ______________________________________________________________________ INSTALLATION NOTES Please record any questions or problems you have experienced as a unit history: Asked Your Asked YMGI Tech. Date Notes Technician for Help? contacted for help? YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Page 50: User Notes And Installation/Service/Maintenance Notes
Technician Checklist Date & HVAC License # by Technician Completed Fully? SERVICE / MAINTENANCE NOTES Company Name, Technician Name, Date Type of Service / Maintenance Phone & HVAC License # YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World! - Page 51 YMGI: Your Modern Green Idea This VRUO Outdoor unit can work with any Indoor Unit Air Handler of any other major North American brand. YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
- Page 52 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.
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