background image

Introduction 

 

Read this manual carefully, making sure you understand all the instructions, practices and procedures contained in this manual. 
Be sure you are familiar with all the safety advisories that appear throughout this manual. Your personal safety depends upon 
your observance of all precautions contained in this manual.   
 

Safety advisories appear throughout this manual and your personal safety and the proper operation of this appliance depend upon 
the strict observance of these precautions. 
 
The 3 types of advisories are defined in the following table: 
 

 

Indicates  a  potentially  hazardous situation  which  if not  avoided  could  result  in  serious 
injury or even death.

 

 

 

Indicates a potentially hazardous situation which, if not avoided, could result in minor or 
moderate injury. It could also be used to alert against unsafe practices.

 

 

 

Indicates a situation that could result in equipment or property-damage only. It can also 
be used to call attention to important details within this manual.

 

  

Important Environmental Concerns 

Studies have shown  that  certain man-

made chemicals can affect the earth’s stratospheric ozone layer when released into the 

atmosphere. 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. 

Responsible Refrigerant Practices

 

YMGI  Group  believes  that  responsible  refrigerant  practices  are  important  to  our  customers,  the  HVAC/R  industry  and  the 

environment. All HVAC/R technicians who handle refrigerants must be certified. The Federal Clean Air Act (Section 608) sets forth 
the requirements for handling, reclaiming, recovering and recycling of certain refrigerants, the equipment and tools necessary to 
perform these service procedures. In addition, some states or municipalities may have additional requirements that must also be 
adhered to for responsible management of refrigerants. HVAC/R technicians must know the applicable laws and follow them. 

 

Disposal Notice 

 

Do  not  dispose  this  product  or  its  components  as  unsorted  municipal  waste,  as  they  contain  items  that  may  require  special 
treatment. Contact your local waste management company for details. 
 

 

Proper Field Wiring and Grounding Required! 

Failure  to  follow  established  electrical  codes  can  result  in  death,  serious  personal  injury  and  property  damage.  All  field  wiring 

MUST be performed by qualified personnel, such as a currently licensed electrician. Improperly installed and grounded field wiring 
poses 

FIRE

  and 

ELECTROCUTION

  hazards.  To  avoid  these  hazards,  you  MUST  follow  the  requirements  for  field  wiring 

installation and grounding as described in this manual and by NEC and your state and local electrical codes. 

 

 

Personal Protective Equipment (PPE) Required!

 

Failure to wear proper PPE for the job being undertaken could result in serious injury or even death. Technicians must take the 
necessary  precautions  to  protect  themselves  from potential  electrical,  mechanical,  and  chemical  hazards  and  MUST  follow  all 
precautions in this manual and on the tags, stickers, and labels, as well as the instructions below: 

 

Before installing or servicing this unit, technicians MUST put on all PPE recommended for the work being undertaken. 
ALWAYS refer to appropriate Material Safety Data Sheets (MSDS) and Occupational Safety and Health Administration 
(OSHA) guidelines for proper PPE.  

 

When working with or around hazardous chemicals, ALWAYS refer to the appropriate MSDS sheets and OSHA guidelines 
for information on allowable personal exposure levels, proper respiratory protection, and handling recommendations.  

If  there  is  a  risk  of  arc  or  flash,  technicians  MUST  put  on  all  PPE  in  accordance  with  NFPA  70E  or  other  country-specific 
requirements for arc flash protection, PRIOR to servicing the unit. 

 

Copyright 

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.  

Summary of Contents for VRFI-07EW-D2B(55)5

Page 1: ...des 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 current...

Page 2: ...Unit Diagram 13 Specification Sheet 14 Unit Dimensions Mounting Bracket Clearance 15 Wiring Diagrams 16 Recommended Tools for Installation 17 System Layout Installation Clearance 18 Installation Locat...

Page 3: ...nsible management of refrigerants HVAC R technicians must know the applicable laws and follow them Disposal Notice Do not dispose this product or its components as unsorted municipal waste as they con...

Page 4: ...void personal injury or property damage do not disassemble the unit yourself If disassembly is required to check the unit contact your authorized system installer or HVAC professional as they have the...

Page 5: ...and licensed personnel to install Reading and following YMGI Group recommendations and requirements contained in the following pages and other documents is the first step to help ensure a smooth insta...

Page 6: ...ures at time of installation 2 Not installing an oil P trap in the copper suction line where the indoor unit is located 18 feet or more below the outdoor unit 3 Cross piping and or cross wiring of any...

Page 7: ...d wiring cable sets to keep from cross piping or cross wiring in multiple zone installations or where pipes for different single zone systems are close to one another 13 Secure the wiring cables that...

Page 8: ...I Group whichever comes first This is a standard limited liability warranty and DOES NOT cover the following Any damage or repairs to properties or persons as an incident of or consequence of improper...

Page 9: ...ip the parts ASAP Expedited shipping is available at the customer s expense 4 Replacement parts that have an approved warranty registration are to be warranted for the remainder of the 1 year on parts...

Page 10: ...ed certified HVAC installation professional to prevent any unexpected charges because of unethical business practices 5 Check their references verify they provide professional service for their custom...

Page 11: ...door units room temperature too low keeping the temperature difference between indoor and outdoor unit within 41 5 18 YMGI Group recommends that only properly trained and authorized personnel be allow...

Page 12: ...f all circuits prior to inspecting or servicing the unit Inspecting and servicing the unit while the power supply is connected and the circuits are switched on could cause an electrical shock or fire...

Page 13: ...Operating Condition Indoor Side Condition Outdoor Side Condition Dry Bulb Temp C F Wet Bulb Temp C F Dry Bulb Temp C F Wet Bulb Temp C F Rated Cooling 27 80 6 19 66 2 35 95 24 75 2 Rated Heating 20 6...

Page 14: ...iquid Connecting Pipe Dia In 1 4 1 4 1 4 1 4 3 8 Gas Connecting Pipe Dia In 3 8 3 8 3 8 3 8 5 8 Drain Pipe External Dia In 11 16 11 16 11 16 11 16 1 1 16 Drain Pipe Thickness In 1 16 1 16 1 16 1 16 1...

Page 15: ...ay appear differently than what is the above illustration Electrical Installation Model Power Supply MCA A MOP A VRFI 07EW D2B 55 5 208 230V 1ph 60Hz 1 15 VRFI 09EW D2B 55 5 1 15 VRFI 12EW D2B 55 5 1...

Page 16: ...Knife Scissors Goggled Glasses Mask Gloves Ladder 2 Refrigeration Related Work Flat Surface Wrench Two Flare Nut Tool Set Hex Head Key Set Torch for AC Application Heat Absorption Flux Nitrogen Soap...

Page 17: ...SYSTEM LAYOUT INSTALLATION CLEARANCE...

Page 18: ...SYSTEM LAYOUT INSTALLATION CLEARANCE...

Page 19: ......

Page 20: ......

Page 21: ...t for the wall before or during construction and before installation Read installation instructions for all units thoroughly Ask rep distributor YMGI Group anything you are not sure about Get your too...

Page 22: ...ngth ft Max Length ft Max Rise Height ft Max Drop Height ft 07K 12K 15 50 20 28 18K 24K 15 75 25 35 30K 36K 15 100 35 50 INSTALL THE WALL MOUNTING PLATE Prior to installing the mounting plate check th...

Page 23: ...he bottom side facing the front of indoor unit of the indoor unit snap off portion 2 on plastic casing If pipes need to come out of the left side facing the front of indoor unit of the indoor unit sna...

Page 24: ...ecure the connections HANG INDOOR UNIT Run copper set wire cables drain hose through the wall hole and hang the indoor unit onto the mounting plate place the hook on the mounting plate into the hangin...

Page 25: ...1 2 24K 1 4 5 8 1 4 5 8 3 8 5 8 Running Interconnecting Refrigerant Lines Use clean refrigeration grade copper pipe only Keep the copper lines from kinking and transmitting any noise to walls cabinet...

Page 26: ...Pipes Sweat Connection In this case wrap a wet rag around the pipe to protect the valves or other components from being overheated When using flux rub the tube surface using steel wool to any oxidatio...

Page 27: ...d shot pipes REMOTE CONTROL BUTTON NAME AND FUNCTIONS NOTE 1 This is a general use remote control that can be used for numerous air conditioning model numbers There may be some buttons on the remote t...

Page 28: ...ear from the remote screen ON OFF BUTTON Press this button to turn the unit on Press once more to turn the unit off When turning the unit ON OFF the TIMER and SLEEP functions will be canceled The pres...

Page 29: ...mperature When the TEMP button is pushed twice the indoor unit will display the room temperature for approximately 5 seconds before going back to the set temp SWITCH BETWEEN F AND C The remote default...

Page 30: ...e is located as its target temperature control Once you do so you will notice a figure of a person surrounded by stars appear on the remote Once the I FEEL stars appear the remote will send a signal f...

Page 31: ...frost mode is enacted the indoor unit will stop running and display an H1 code Once the defrost cycle is finished and the outdoor coil is defrosted the indoor unit will start to run again in the mode...

Page 32: ...l enter AUTO RUN mode The microcomputer will acquire the room temperature to select the COOL HEAT FAN mode automatically to obtain the correct setting Stopping When the unit is running press the ON OF...

Page 33: ...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...

Page 34: ...disconnecting electrical power disconnect switch 2 Clean filter and unit 3 Cover the unit to keep dust or moisture out of the unit PROTECTION AND ERROR CODES Error Code Content Error Code Content Erro...

Page 35: ...the remote control pointing at sunshine or bright lights 3 Is the remote control signal blocked 4 Is the remote control too far away from indoor unit 5 Is the fuse on indoor unit blown 6 Is the indoor...

Page 36: ...llowing 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 Wires or connections are very hot 6 Oi...

Page 37: ...Help Did You Ask YMGI Tech for Help USER NOTES Put down whatever questions you have or problems you have seen as a unit history No Date Installation Company Name Technician Name Phone HCAC License Job...

Reviews: