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MUST READ-1

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YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !

WELCOME AND PLEASE READ THROUGH MANUALS

Toll Free Number: (866)833-3138
Email: techsp@ymgigroup.com

If you have any questions about your unit or even doubt if the unit has any problem, you can first check against 
the mannds. If you can not find answers, then you can contact your local installer or service technician to 
physically inspect the unit.  If at the time of inspection the installer or service technician have any questions they 
can contact YMGI technical support division directly at:

Dear Customer(s)/End User(s)/Unit Purchaser(s)/Installer(s)/Contractor(s):

Thanks for choosing YMGI products.

The YMGI equipment you purchased is either a split-type or a self-contained cooling/heating system which 
requires an installer's license, certification, knowledge, experience, carefulness and details for a successful and 
good installation. This equipment is different from those window or portable air conditioners you can normally 
purchase from local retail stores such as Home Depot, Lowe's, Sears, etc. which the manufacturer may not 
require licensed personnel to install. 

Reading and following the YMGI Group's recommendations, suggestions, and requirements, written in the 
following pages and other documents, is the first step to ensuring a smooth and trouble free installation & proper 
operation of your products for many years to come.

YMGI Group, POB 1559, O'Fallon, MO 63366 is the only party who holds the final explanation (in authorized 
writing) about any descriptions or data in YMGI-published materials, including but not limited to 
YMGI product brochures, manuals, pamphlets, catalogs, videos and any other media. YMGI's distributors, 
installers, dealers, agents, customers or any other third parties shall not supersede YMGI to make any 
explanation about what YMGI-published materials mean. Any uncertainty or questions, arising from YMGI 
distributors, installers, dealers, agents, customers or any other third parties, should be passed directly to YMGI 
for an explanation in writing.

IMPORTANT NOTE-YMGI HOLDS FINAL EXPLANATION:

The quality of the installation plays a key role in whether the units will work well and for an extended period of 
time. The information we provide in our manuals is for the sole purpose of reminding you and your installer.

It is our ultimate goal to help insure that your YMGI units are installed properly and correctly from the very 
beginning to the very end. This ensures that your YMGI units will work well and not only provide a comfortable 
room but also peace of mind.   

YMGI doesn't recommend nor allow any do-it-yourself (DIY) installation (partially or fully), since DIY will cause 
problems sooner or later to your units and your upfront saving is Not saving down the road.

YMGI warranty doesn't cover any DIY units.

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All Units Shall Be Installed by Experienced or Licensed Contractor Or 

Technician. Read Manuals before Installation.

YMGI Group Will NOT Take Any Responsibilities for Any Damage or 

Loss Due to Do-It-Yourself(DIY) self-installation and other Improper Installation or Operation or 
Natural Disaster.

Connect All Wiring Securely. Loose Wire or Other Bad Contact May Cause 

Arc or Overheating and Fire Hazard.

Following NEC, State and Local Codes and Installation Instructions of All 

Units, Otherwise Unit Warranty Will Be Void and Serious Damage To People Or Property May Be 
Caused.

Don't Supply Power until All Wiring and Tubing and Checking is 

Completed. Ground the Unit Following Instructions and NEC, State and Local Codes.

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CONNECT REFRIGERANT PIPES BETWEEN INDOOR AND OUTDOOR UNITS

IMPORTANT NOTES

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YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !

TABLE OF CONTENTS

EXPLOSIVE VIEW AND SPARE PARTS LIST

CUSTOMER AND TECHNICIAN MUST READ

INDOOR UNIT DIAGRAM

SPEC.SHEET

UNIT DIMENSIONS, MOUNTING BRACKET CLEARENCE

WIRING DIAGRAMS

RECOMMENDED TOOLS FOR INSTALLATION

SYSTEM LAYOUT & INSTALLATION CLEARANCE

INSTALLATION-LOCATION SLECTIONS

INSTALLATION-INDOOR UNITS

PIPING GUIDE

OPERATION AT EMERGENCY

CLEAN AND CARE

LENGTH AND ELEVATION LIMIT OF INSTALLATION

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REMOTE CONTROL-BUTTON NAME & FUNCTIONS

OPERATION OF REMOTE CONTROL

PROTECTION SIGNS AND ERROR CODES

CHECKING UNITS PRIOR TO CONTACTING YOUR TECHNICIAN

USER NOTES AND INSTALLATION/SERVICE/MAINTENANCE NOTES

LIMITED PRODUCT WARRANTY POLICIES

LIMITED PRODUCT WARRANTY REGISTRATION CARD

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WELCOME AND PLEASE READ THROUGH MANUALS
INSTALLING TECHNICIAN/CONTRACTOR'S JOBS AND RESPONSIBILITIES

WARRANTY AND TECHNICAL SUPPORT

Summary of Contents for WMMS-09EW-V2B(59)2

Page 1: ...r Local Codes and related manuals from YMGI Otherwise damage to equipment or property even injury to people may occur Installer Currently licensed HVAC technician only Read manual before installation...

Page 2: ...d for an extended period of time The information we provide in our manuals is for the sole purpose of reminding you and your installer It is our ultimate goal to help insure that your YMGI units are i...

Page 3: ...e humidity ranges installation operation maintenance service warranty parts and so on 4 Properly select correct most suitable YMGI product models of units and accessories for your HVAC applications jo...

Page 4: ...he installation 5 Supply electrical power V Ph Hz measured at wiring terminal block of Indoor unit outdoor unit 7 Wire gauge length and terminal colors between circuit breaker disconnect switch to out...

Page 5: ...rvice contractor otherwise 3 The distributor where the unit is purchased from otherwise 4 YMGI Technical Support Tel 866 833 3138 703 Email techsp ymgigroup com Regular equipment maintenance or field...

Page 6: ...0 0 2 1 Cross Flow 1 3 6 x25 4 MP24AA 2 2 4 NA Blue Yes 1 4 3 8 0 67 NA Yes Standard Washable 2 Yes Yes Yes Yes 32 7 x 11 2 x 7 9 35 7 x 15 2 x 10 7 24 3 30 8 240 480 540 208 230 1 60 187 253V 12000 9...

Page 7: ...PE OUT TEM SENSOR ROOM TEM SENSOR FAN MOTOR M1 RT4 RT3 RT2 RT1 4 3 2 TUBE 1 TUBE TUBE 0 ROOM PG PGF CAP JUMP AP2 DISP1 DISP2 SWING UD TR OUT1 TR IN M2 N1 COMU AC L BU BK BN XT N 1 2 3 YEGN E INDOOR UN...

Page 8: ...Tool Set Not Shown Hex Head Key Set Torch for AC Application Not Shown Heat Absorbtion Flux Nitrogen Not Shown Soap Bubble Not Shown Vacuum Pump Helium Leakage Check Not Shown Manifold Wire Cutter Wir...

Page 9: ...door unit B Indoor unit C OVER 20 OVER 10 OVER 10 OVER 8 OVER 10 OVER 2 OVER 4 OVER 4 OVER 80 INSTALLER S INSTRUCTION P16 OF 46 YMGI Engineered Comfort Products for A Sustainable and Efficient Green W...

Page 10: ...uctions of all units thoroughly Ask rep distributor us anything you are not sure about Get your tools and parts ready for installation CAUTION SUGGESTIONS TO FOLLOW PRIOR TO INSTALLATION PIPING AND WI...

Page 11: ...plate holes with those holes drilled on the wall and put anchors or screws into the holes to secure mounting plate Steps To Mount Plate a b c Drill mounting holes to make sure at least either one of t...

Page 12: ...For distance other than 25 between indoor and horizontal venting condensing units refer to the following table for copper sizes Make sure the pipe section where is to be cut is straight and smooth App...

Page 13: ...t mode you would like the unit to run in When the remote is first turned on the mode displayed will be the AUTO mode The temperature cannot be adjusted in this mode and will not display on the indoor...

Page 14: ...emote press the TIMER ON button once more and the word ON will stop blinking and stay on the remote The time you would like the unit to turn on is now set TIMER OFF BUTTON This allows you to set the t...

Page 15: ...he same time COOLING Running symbol and cooling symbol are lit HEATING Running lamp and heating symbol are lit DRY Running lamp and dry lamp are lit FAN Running lamp and fan lamp are lit AUTO Auto lam...

Page 16: ...or discoloration to Install front panel Place two supporters of the front panel into the slots along the direction of arrows to cover and clasp the front panel As show in right figure If at any time t...

Page 17: ...orized service center for professional repair Following checks prior to contact may save your time and costs Phenomenon Normal or Abnormal The unit doesn t deliver cooling or heating immediately after...

Page 18: ...leaking 3 Is condensate drain hose clogged or restricted 4 Is condensate drain hose insulated 5 Is the 3 hole at exterior wall staffed or sealed Noise is heard at indoor unit 1 Is the fan motor or co...

Page 19: ...32 Transformer 48X26P 1 33 Wire clamp 1 34 Rear clamp 1 35 Connecting cable 1 36 swing louver clamp 1 37 swing louver 1 38 swing louver up 1 39 swing louver down No Description Tube sensor 20K Part C...

Page 20: ...1 Front panel 200022921 1 Guide louver 261120432 1 Guide louver 261120422 1 Motor MP28EC 15212002 1 Right motor clamp 26112429 1 Bearing holder 26152423 1 Motor FN20M PG 150120873 1 Electric box cove...

Page 21: ...experience to correct the problem more efficiently A technician s may be unwilling to repair an issue on a unit that they did not install If you do find a technician willing to perform the service the...

Page 22: ...ereafter in this and other documents that we publish 2 You will follow what is written hereafter in this and other documents that we publish 3 You will be bound by and completely follow all policies g...

Page 23: ...s available based on the actual need at YMGI s determination This option shall be the last resort due to refrigerant and wiring considerations All unit removal re installation and shipping cost are th...

Page 24: ...Read and follow all policies set forth from the distributor from which you purchased your unit Upon purchase and installation of the unit s you agree to be bounded by all policies published by both di...

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