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MUST READ-2

MUST READ-2

QUESTIONS ABOUT SELF-INSTALLATION VS HIRING LICENSED HVAC 
TECHNICIANS

CUSTOMER AND TECHNICIAN MUST READ

1) You understand all that is written hereafter 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, guidelines, instructions, warnings, attentions and other 
    materials, as published by YMGI Group, its subsidiaries or sister companies, in writing. 

4) Only a successful installation, fully (100%) conducted by a qualified HVAC technician(s), as detailed in the 
    checklist of the 

Limited Product Warranty

 

Policy

 and 

Limited Product Warranty Registration Card/Form

    along with a properly detailed installation invoice, is eligible for the 

Limited Product Warranty

.

5) Failure to follow what is written hereafter may cause various equipment issues that you will take full 
    responsibility and liability for, including, but not limited to, losing manufacturer's warranty, unit not working 
    properly, unit malfunctions, under-performance, decreased safety, increased potential of various damages to 
    your property, body, home and/or business, etc.

6) YMGI documents and policies supersede those made or provided by the sales distributors or installing 
    contractors. YMGI Group maintains the final authority in explaining and resolving any and all discrepancies 
    that might exist between distributors/contractors' documents and ours. 

YMGI STRONGLY RECOMMENDS:

* Customer hires a currently licensed/ certified HVAC technician(s) (N.A.T.E. or A.C.C.A certification is strongly 
   recommended) to conduct 100% of the installation, inspection of all unit functions and repair service.

* Customer signs an installation/service contract with the installation/service technician's company who has good 
   service references and you trust. Installation and service is very important to the life of your investment and 
   provide you a lifetime of comfort

 

and peace of mind.

* Customer requests the installer to put down a1-year labor warranty coverage in the installation contract.

* Have the technician check against all the items in the checklist of the 

Limited Product Warranty

 

Registration 

   Card/Form

, sign and date it, to help ensure a proper and professional installation.

* Customer pays in full, only after all the unit functions are inspected, the unit works properly, warranty checklist 
   is fully filled out and signed and you are fully satisfied.

* If any unit abnormality is found, have your technician check the unit first. Have them call for manufacturer 
   technical assistance, if necessary, from your job site, not his office, so that we can more accurately assist him 
   in diagnosing the cause of the malfunction.

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.

UPON PURCHASING, OPENING PACKING BOXES AND INSTALLATION OF 
YMGI UNITS/ACCESSORIES, YOU AND TECHNICIANS YOU HIRE TO 
INSTALL THEM ARE ASSUMED TO HAVE READ ALL MATERIALS AND 
AGREE TO FOLLOW AND BE BONDED BY ALL WE SAY IN YMGI MANUALS. 

11) If all the suggestions have been taken and all the necessary steps are followed.

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.

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

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

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

WHY DOES YMGI GROUP REQUIRE INSTALLATION AND SERVICE TO BE 
100% PERFORMED BY LICENSED OR CERTIFIED HVAC TECHNICIAN/ 
CONTRACTOR?

 

1) They have the training and experience to accurately and safely install and service your equipment.

 

    The equipment runs with high-pressure refrigerant and oil and line-voltage. The copper lines must be installed 

    properly to prevent leakage and foreign substances from contaminating the refrigerant system.

2) You will save money in the long run.    

If any problems occur on the unit that is fully installed by the licensed 

    or certified contractor, they have the training and 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, there is an increased possibility of higher service fees than normal, increased 

    service visits, or delayed service from that technician. 

3) It's the law!

    

The federal, state and/or local government and authorities have various governing laws or regulations, 

    guidelines, ordinances, etc., requiring only licensed or certified professionals can install and service high 

    pressure HVAC equipment.

SUGGESTIONS, TO AID YOU IN HIRING AN HVAC CONTRACTOR:

1) Hire a currently, practicing, licensed/ certified HVAC technician/ contractor. Technicians, who are no longer 

    practicing (retired, etc.) in this field, may not have the updated knowledge or may lack experience on the 

    equipment you have purchased.

2) Hire a technician/ contractor who services customers in your local area and you are familiar with. Local 

    contractors have a faster response time and will be easier for you to determine if they are reputable.

3) Use only reputable licensed/ certified HVAC installation contractors/ technicians to prevent any unexpected 

    charges as a result from unethical business practices. 

4) Check their references, to verify they are a good service provider to the general customers. N.A.T.E or A.C.C.A 

    certified technicians are strongly recommended. 

5) Some contractors/ technicians may not feel comfortable about installing the equipment that you purchased for 

    them to install, and they prefer to purchase and install the equipment. You can contact YMGI directly to check 

    and see if there have been any contractors in your area who have installed our products or similar.

6) Ask for a detailed quote for the whole installation project.  A flat rate quote is the safest contract for both you 

    and the contractor

7) Your local HVAC technicians may charge you on a project basis or on an hourly basis. To our general 

    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) Number of hours can vary depending upon each individual situation, some factors are, but not limited to:

9) How difficult or complex the indoor unit is to be securely installed.

10) How difficult or how long the inter-connecting pipes and wires are to be installed.

CUSTOMER AND TECHNICIAN MUST READ

Summary of Contents for SYMPHONY CHOIR 80CH

Page 1: ... Installation operation maintenance and service shall follow professional practices for regular cooling and heating equipment 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 manual before installation Sign on the warranty registration card User Keep this ma...

Page 2: ...ORTANT 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 ...

Page 3: ...re 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 jobs and list them in your proposal quote in writing on your company s quote form or letter head basing upon the information you get from 1 2 and 3 above 5 List your currently valid HVAC license and EP...

Page 4: ... the 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 outdoor unit 9 The size of HVAC circuit breaker fuse or disconnect switch to the outdoor unit 11 What is the refrigerant pipe length between each indoor unit and the outdoor unit Unit A Unit B Unit C U...

Page 5: ... 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 d...

Page 6: ...the appointed service center A place which is full of machine oil A region with saline sodic soil near the sea A place where the sulphide fog exists such as the sulphur spring A place where the high frequency facilities exist such as radio equipment electric welder and medical equipment An environment with special conditions 1 When the place of the installation is exposed to strong wind When stron...

Page 7: ...is strength and level so that the unit will not cause any operating vibration or noise after installation 2 In accordance with the foundation drawing in the Fig 6 please drill 4 holes in the installation location A Discharge air side B Bottom view inches C Drain holes 3 Fix the unit securely with the foundation bolts You can get the M10 or M8 foundation bolts nuts and washers from the market 4 Rub...

Page 8: ...RANT PIPES Y type branch pipe must be installed in vertical or horizontal direction In the inlet of the branch pipe keep at least 19 69inch straight pipe 1 Pipe connections should be follow the following rules Outdoor unit shall be installed close to the indoor unit hence to minimize the length and bends of connection pipes The gap of outdoor unit and indoor units should be as small as possible Th...

Page 9: ...e operation 2 As shown in the following figure expel the gas from the refrigerant pipes by the vacuum pump 3 Open the pump and turn on the knobs to evacuate the gas in the liquid and gas pipes 4 When the pressure of the system is less than 0 1Mpa 1bar keep the system for more than one hour under the condition 5 Then turn off the knobs and the pump and if the pressure of the pressure vacuum gauge d...

Page 10: ...sure vacuum gauge 6 7 8 9 Hi knob Lo knob R410A tank Scale When the liquid and gas stop valves have not been opened the system is under the vacuum 1 Refer to the left of the Fig 20 connect the R410A tank to the system 2 Turn on the R410A tank and the Hi knob charge the R410A refrigerant into the system from the liquid side stop valve The Lo knob should be closed completely 3 Turn off the R410A tan...

Page 11: ...ground terminal should be provided and the ground wire cannot be connected to any of the following places a Water pipe b Coal gas pipe c Sewage pipe d Lightning rod e Telephone line f Other unreliable places considered by a professional ELECTRICAL WIRING WORK The ground connection should be reliable and the ground wire should be connected to the dedicated device of the building by the professional...

Page 12: ... or outdoor unit is blocked Remove the obstacles Air inlet or outlet of indoor unit or outdoor unit is blocked Remove the obstacles Temperature setting is improper Adjust the setting of remote controller or wire controller Air speed is set too low Adjust the setting of remote controller or wire controller Improper airflow direction Adjust the setting of remote controller or wire controller Door or...

Page 13: ... board of the outdoor unit Check for more details about the meaning of each error Conditions Causes When restart the unit soon after it is stopped The overload protection switch of the unit let the startup delayed for three minutes As soon as power supply is on The unit will stand by for approximate one minute When the cooling operation starts The hi humidity air indoor is cooled quickly The unit ...

Page 14: ...ing 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 ...

Page 15: ...e 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 indoo...

Page 16: ...different from what are typical in traditional split type air conditioning and heat pump systems and similar systems made by other manufacturers These are not defects Take some time to learn the functions of your unit We will be happy to assist you with any questions you may have concerning the functions of your new unit 1 Part repair or replacement after trouble shooting This is the most common a...

Page 17: ...ND INSTALLATION SERVICE MAINTENANCE NOTES Notes Asked for Your Technician for Help Did You Ask YMGI Tech for Help INSTALLATION NOTES Original Installation Company Name Technician Name Phone HVAC License Job Not Performed by Technician Technician Checklist Completed Fully SERVICE MAINTENANCE NOTES No Date Contents of Service Maintenance Technician s Company Name Technician Name Phone HVAC License P...

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