YMGI WMMS-09EW-V2B Technician Service Manual Download Page 5

1) The YMGI 

Limited Product Warranty Policy

, details the eligibilities, coverage's and other explanations of the warranty 

    terms between YMGI group and the unit owner.
2) The YMGI

 Limited Product Warranty Policy 

and the

 Warranty Registration Card/Form

 are either included inside the 

    user's manual and/or installation instruction manual, or come separately in the unit packaging box/envelope. If for any 
    reason they are not included with your shipment, contact our sales or customer service to request a copy (electronic or 
    printed), prior to installation. 
3) The checklist, in the 

Warranty Registration Card/Form

, is for the currently licensed/ certified HVAC technician to fill out 

    completely, while

 

verifying all unit functions are operating correctly. This checklist is for the technician to test and check all 

    details of your unit, to verify and ensure its proper operation.
4) The technician must complete all fields in the 

Warranty Registration Card/Form

, especially the unit model and serial 

    numbers and distributor information, and most importantly, the technician checklist.

5) Warranty Registration Card/Form

 shall be mailed, 

along with the original copy of the currently licensed HVAC 

    contractor's full installation invoice

, to YMGI Group, within 7-days after original installation, in order for YMGI to review 

    and process your warranty registration. 
6) Keep a copy of 

Warranty Registration Card/Form

 for your own use in the future, to aid in any possible future warranty 

    claiming, any request of parts, customer service, and/or technical support.
7) YMGI reserves the right to approve or deny the warranty status based on the information reviewed.

Mailing address of the

 Warranty Registration Card/Form:

 Warranty Department, YMGI Group, POB 1559, 

O'Fallon, MO 63366, USA.

Following these requirements will aid in ensuring the units will be installed to the general HVAC practicing 
standards and are necessary factory requirements, to

 

find problems early, prevent possible damage to the unit 

and help ensure the unit will work properly for its life time.

QUESTIONS ABOUT SELF-INSTALLATION VS HIRING LICENSED HVAC 
TECHNICIANS

Does YMGI allow to do-it-yourself installations (DIY) partially or fully?  NO. 
Unfortunately no brand or manufacturer can take the responsibility of the equipment if it is not professionally 
installed by a currently licensed HVAC technician/ contractor.
If unit is installed by non-licensed people, in part or fully, will the factory warranty be void? YES.
Some DIY installations have been successful, but these are exceptions. Most have resulted in equipment failure, 
due to lack of knowledge and experience. A few of the problems result from DIY's lack of knowledge in the 
following areas:
* Sizing and selecting correct type, size and model of cooling and/or heating equipment.
* Sizing and installing correct electric circuit breakers and wires.
* Wiring the units correctly and properly.
* Taping the ends, connecting to indoor and outdoor units correctly and properly.
* Vacuuming the inter-connecting refrigerant lines.
* Checking and/or fixing the refrigerant leaks.
* Checking and/or fixing the condensate drain leaks.
* Releasing the refrigerant from outdoor unit to indoor unit.
* Running the unit to check all the unit functions.
* Conducting the installation or trouble-shooting with correct tools, experience or professional knowledge to 
  correct the problem.

RECEIVING AND FREIGHT DAMAGE

ATTENTION

* Freight (package/unit) shall be checked thoroughly for damage at receiving before accepting by signing on the 
  carrier's delivery paperwork.
* Upon shipment being signed for acceptance, it becomes a binding document as to the condition of the products 
  on delivery. We cannot process any shipping damage claim, if you accept the delivery.
* If damage is found at delivery, both you and the delivery driver must make notes on the delivery receipt or other 
  freight paperwork detailing the damage found by marking position/parts on unit, description of damage, time/
  date, your name, contact phone, etc. on the delivery documents. Make a copy of the marked delivery receipt.

CUSTOMER AND TECHNICIAN MUST READ

MUST READ

MUST READ

P7 OF 40

P8 OF 40

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

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

The cost of not having your unit installed properly can be more expensive than spending the little extra money 
that hiring the right contractor will cost. Protect your investment and warranty eligibility by doing it right the first 
time. 

THE FOLLOWING LISTS THE JOBS AND RESPONSIBILITIES OF THE 
TECHNICIAN/ CONTRACTOR:

* Performing a load calculation for the room(s) you would like to air condition. Cooling requirements will be 
  different from the heating requirements. They will consider cooling hours, heating hours and your special needs 
  or requirements. Supplemental heating such as baseboard heater or portable heater may help you save money 
  by not over-sizing or under-sizing the heating equipment.
* Selecting the right type, size or model of cooling and/or heating equipment.
* Determining the best location to install the unit. (Positioning indoor unit, outdoor unit and running the inter-
  connecting pipes/wires.) 
* Selecting the correct electrical components (HVAC circuit breaker or fuse and disconnect switch for the electric 
  power to the outdoor unit, types and sizes of the connecting wires between circuit breaker/disconnect switch 
  and outdoor unit, and the wires between outdoor unit and indoor unit).
* Keeping the indoor unit away from the ceiling and the outdoor unit away from the wall, bushes and other 
  obstacles at a proper and safe distance to allow for the proper airflow through the unit's.
* Placing the units on a secured level structure.
* Taping and sealing both ends of the inter-connecting pipes, before running them through structures, to prevent 
  dust or other debris from getting into the pipes otherwise they will contaminate and damage the refrigeration 
  system. Failure to follow this practice will make your factory warranty void.
* Connecting the inter-connecting pipes between the outdoor and indoor units. Checking for leaks through 
  pressurization with nitrogen. After releasing nitrogen, evacuate the piping and indoor unit, for removal of system 
  contaminants. Finally refrigerant introduction and adjustment, if necessary, from the outdoor unit. 
* Back-seating the stopping valves at outdoor condensing unit to release pre-charged refrigerant from outdoor 
  unit to indoor unit.
* Measuring and recording the electrical voltages at different terminals and the refrigerant pressures at stopping 
  valves of outdoor condensing unit.
* Verifying and ensuring the unit is connected to the proper electrical power supply.
* Adjusting refrigerant levels (if necessary) following the installation instructions or chart on the unit.
* Checking for any unusual noises and other abnormalities that might be present.
* Operating the unit and check all functions, one by one, and explain to the owner how to operate and maintain 
  the unit.
* Completing all fields in detail on the installer checklist, signing and dating the 

Warranty Registration Card/Form.

LIMITED PRODUCT WARRANTY

If the installation is successfully and fully done by a qualified licensed/ certified HVAC technician/contractor,

 

the 

registration card/form is filled completely and correctly, and filed along with a valid installation invoice from the 
contractor company within 7 days of the original installation, the following standard 

Limited Product

 

Warranty

 is 

qualified:
5-year on compressor and 1-year other PARTS ONLY. There is 

no labor coverage

12) If the contractor(s)/technician(s) are experienced with the systems/brands you purchase.
      

You might spend less. But remember, many times you get what you pay for.

13) Sign a contract with them. The contract should list all the detailed work they will conduct and the standards 
      they will follow. Some contractors are willing to include a 1-year installation/service warranty at no extra 
      charge. Check with them to see if that is available. If available, include that in the contract. 
14) Verify and confirm the installation is done completely and all the unit functions have been checked and are 
      working properly, all the items in the checklist have been checked and marked well in the warranty registration 
      card/form, prior to paying the contractor in full.

CUSTOMER AND TECHNICIAN MUST READ

Summary of Contents for WMMS-09EW-V2B

Page 1: ...pment NEC State City or Local Codes and related manuals from us Otherwise damage to equipment or property even injury to people may occur Installer Currently licensed HVAC installer only Read this man...

Page 2: ...ory labs third party labs and various fields applications following related industrial and company standards 7 Field installation details matter with all 1 if your units will work correctly and proper...

Page 3: ...ty approval because warranty is approved only to those qualified and successful installations by qualified HVAC technician I know the warranty if approved is a standard 5 year compressor and 1 year ot...

Page 4: ...eral knowledge and experience a full single head installation may normally cost anywhere from 800 to 1500 These costs are estimates and your actual costs may differ due to job nature and location 8 Nu...

Page 5: ...D MUST READ MUST READ P7 OF 40 P8 OF 40 YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Engineered Comfort Products for A Sustainable and Efficient Green World The co...

Page 6: ...t Green World YMGI Engineered Comfort Products for A Sustainable and Efficient Green World If the damage is minor or partial that you choose to accept you can contact the distributor or YMGI to discus...

Page 7: ...he Customer Request to Ship Products to YMGI Service Center for Inspection and Repair and Authorization to Charge form 2 You will review the form and fill all fields appropriately sign and send back t...

Page 8: ...copper tube Aluminum fin copper tube Swing Motor Model MP28VB 1 4 3 8 MP28EC MP35XX Output of Swing Motor W 2 2 2 5 Fuse A PCB 3 15A Transformer 0 2A PCB 3 15A Transformer 0 2A PCB 3 15A Transformer 0...

Page 9: ...WS DIMENSIONS MOUNING BRACKET CLEARANCE YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Engineered Comfort Products for A Sustainable and Efficient Green World WMMS 0...

Page 10: ...this mode only indoor fan is running at setting status Under auto fan speed it will run by cooling auto fan Heating Mode When the indoor receiving the information mode clash from outdoor unit and the...

Page 11: ...ter setting sleep procedure 1h T preset will increase 1 F 2h later T preset will O O increase 2 F then remain the temperature T preset will not exceed 86 F under heating after setting sleep O O proced...

Page 12: ...ER 4 OVER 80 CLEARANCE REQUIRED AROUND UNITS DUAL ZONE 2 YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Engineered Comfort Products for A Sustainable and Efficient G...

Page 13: ...E REQUIRED AROUND UNITS QUAD ZONE OVER 2 OVER 4 OVER 4 OVER 80 YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Engineered Comfort Products for A Sustainable and Effic...

Page 14: ...for screws Align mounting 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 su...

Page 15: ...ipes need to come out of the 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 u...

Page 16: ...N INDOOR AND OUTDOOR UNITS Firstly connect copper tubes at indoor unit Bend pipes by tools but not by hands Extra length is needed for future service REFRIGERANT PIPES For distance other than 25 betwe...

Page 17: ...25 26 27 28 29 30 Jumping connector 1 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...

Page 18: ...e 68012019 1 Receiver board 30545042 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 FN...

Page 19: ...2 Front case 200026524 1 Front panel 2000284402 1 remote control YT1F 30510049 1 Displaying light board 22432071 1 Electric box cover 1 20112019 1 Wire clamp 71010103 1 Terminal board 4201026601 1 El...

Page 20: ...mfort Products for A Sustainable and Efficient Green World DISASSEMBLY PROCEDURE OPERATING PROCEDURES PHOTOS Disassemble Front Panel Lift the front panel upward Firstly screw off a screw fixing the up...

Page 21: ...ny damages to person or property of whatever kind direct or indirect special or consequential whether resulting from use or loss of use of the product The original licensed installer or current servic...

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