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WARRANTY AND TECH.SUPPORT
YMGI warrants to the purchaser/owner(s) that YMGI products be free from defects in
workmanship under the normal use and maintenance, with the standard Limited Product Warranty
Policies that comes with the unit or sales package.
YMGI IS NOT RESPONSIBLE FOR
* Damage or repairs required as a consequence Customer do-it-yoursely(DIY) installation and/or any other faulty
installation or improper application.
* Damage or repairs needed as a consequence of any misapplication, abuse, improper servicing, unauthorized
alteration, or improper operation.
* Damage as a result of floods, winds, fires, lightening, accidents, corrosive atmosphere, or other conditions
beyond the control of YMGI.
* Any 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.
* Failure to start due to voltage conditions, blown fuses, open circuit breakers, or other damages due to the
inadequacy or interruption of electrical service.
* Parts not supplied or designated by YMGI.
* Products installed outside USA or Canada.
* Regular equipment maintenance or field service or field inspection.
* Any problems due to improper cooling and heating load calcuation of the room/building the air conditioner/heat
pump system is to be installed. Equipment users can get the calculation schedule from your room/building
architect or your installation or related service HVAC contractor, who should have the knowledge and the tools
to do these calculations correctly.
* Any problems due to improper sizing and selecting air conditioner/heat pump system. These equipment sizing
and selection work should be conducted by either your room/building architect or your installation or related
service HVAC contractor, who should have the knowledge and the tools to do these calculations correctly, and
get your approval, before purchasing the air conditioner or heat pump equipment.
* Any problems due to improper installing of the air conditioner/heat pump system. Installation should be
conducted by currently licensed HVAC technician, following manufacturer installation instructions, all governing
safety codes, with care and professionalism.
* Any problems due to improper operation of the air conditioner/heat pump system. Users shall keep the manual
and refer to it for the correct understanding of how the unit will work and how to operate the unit correctly.
* Any problems due to improper maintenance of the air conditioner/heat pump system. Like a car, regular
maintenance or yearly checking is necessary for the unit to work properly for you, before the season comes. For
example, air filter shall be checked for cleaness from time to time. Remote control batteries shall be checked for
enough power, before judging the unit is not working...
CONTACT FOR FIELD SERVICE OR REPAIR
The following people, in a prioritized sequence, will take care of your request or issue:
1) The original installer; otherwise,
2) Your current service contractor; otherwise,
3) Authorized contractor in YMGI list that is close to you; otherwise,
4) Authorized Distributor in YMGI Distributor list; otherwise,
5) Contractor/Distributor you prefer who is close to you.
CONTACT FOR GENERAL TECHNICAL QUESTIONS OR SUPPORT, IN A SEQUENCE:
1) The original installer; otherwise,
2) The current service contractor; otherwise,
The original licensed installer or current service contractor should be contacted first of all, since they installed
the unit and/or know more details than anybody else.
They will check the unit and find out the problems with the professional knowledge about HVAC and electric
product installation by using special tools or instrument.
They can contact YMGI technical support for technical help during unit installation or inspection.
Product model and serial numbers needed, which can be found on unit nameplate sticker, so that our
technician can quickly identify the unit, parts and wiring diagrams, among our many products and models.
3) The distributor; where the unit is purchased from otherwise,
4) YMGI Technical Support:
Tel: (866) 833-3138*703
Email: techsp@ymgigroup.com
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
material and
PRECAUTIONS FOR R410A
* It is very strict that the refrigerant pipes should be clean and dry.
* The R410A is a mixed refrigerant, when add the refrigerant to the unit, it must keep the refrigerant in its liquid
state. If the refrigerant is in gas state, the composition has been changed and the capability of the unit will
decrease.
* When the refrigerant is leak out, please do not touch the leakage. Otherwise, it will result in frostbite.
* It does not support to let a lot of refrigerant go into the ambient atmosphere, because it will strengthen the
green house effect. Otherwise, it will produce toxic gas when the refrigerant contacts with the fire.
PRECAUTION FOR INSTALLATION
* The unit is is more than 240 lbs, so more than two people will be needed to move the unit.
* Do not lift by packaging.
* When removing packaging, place the hands on the corners and be careful not to cut hands on the fins.
* Dispose of the packagingto in a garbage bin after the installation.
PRECAUTION FOR OPERATION TEST
In order to protect the compressor from vibrating during transportation 2 metal gaskets are used. They must
be removed prior to commissioning and retighten the nuts firmly; otherwise the unit may not operate well.
ACCESSORIES
The accessories of the unit, please look out the Packing List in the package.
The
YMGI
displacement of compressor, stepless capacity regulation within range of 10%~150% can be realized.
Various product line-up is provided with capacity up to 90,000 Btu , which can be widely used in
residential, light commercial, institutional and some industrial applications with variable load change. YMGI
commercial air conditioner is absolutely your best choice.
NAMES OF MAIN PARTS
Intake air
Intake air
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ATTENTION FOR INSTALLATION
PRODUCT INTRODUCTION
Super
Any
Match System adopts inverter compressor technology. According to change
Intake air
Name
COMBINATIONS FOR OUTDOOR
AND INDOOR UNITS
Discharge air
Total capacity of indoor units
Discharge air
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
①
②
③
④
⑤
NO.
Fan
Axial flow
Electrical
Gas side
Liquid side
motor
box
stop valve
stop valve
fan blade
WMMS-80CH
WMMS-90CH
Sorts
-V2B(59)2
-V2B(59)2
Min
2
2
No. of indoor units to
be connected
Max
8
9
Min
24000
28000
to be connected(Btu/h)
Max
80000
90000
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