YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
INSTALLATION INSTRUCTION
Wall Mount Mini Split Systems
DC INVERTER R410A-M6
Single Zone
Cooling and Heat Pump
18~22 SEER
POB 1559, O'Fallon, MO 63366, USA
Tel: 1-866-833-3138
Fax: 1-866-377-3355
Email: info@ymgigroup.com
Literature Part No: LIT-WMMS-M6-DC IVTR-1 to 1-C8-II-20100608
For WMMS Series of Product Single Zone (Cooling, Heat Pump)
Subject to Continuous Engineering Improvement without Prior Notice.
This product is designed and manufactured free from defects in material and workmanship under the normal use and
maintenance. 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 manual for future maintenance and service use.
Servicer: Use this manual for service reference.
YMGI is the Trademark and Property of YMGI Group. Copyright of YMGI Group.
LITERATURE: LIT-WMMS-M6-DC IVTR-1 to 1-C8-II-20100608
CONTENTS
ILLUSTRATION OF INSTALLED SYSTEM SAMPLE
ILLUSTRATION OF INSTALLED SYSTEM SAMPLE
CONNECTION OF WIRES
GET READY FOR INSTALLATION
ATTENTIONS-MUST READ AND FOLLOW THE FOLLOWING, PRIOR TO CONNECTING REFRIGERANT LINES
NOTES FOR REFRIGERANT RELATED HVAC PRODUCTS, SPECIFICALLY THE SPLIT TYPE
IMPORTANT NOTES
BRIEF INTRODUCTION TO MINI SPLIT WALL MOUNT SYSTEM
IMPORTANT NOTES FOR UNIT OPERATION ABMIENT & SIZING
UNIT ENGINEERING SUBMITTALS-MECHANIAL
INSTALLATION CLEARANCE REQUIREMENTS GENERAL
INSTALLATION POSITIONS FOR INDOOR UNIT
INTRODUCTION
INSTALLATION POSITIONS FOR OUTDOOR UNIT
DURING INSTALLATION-INDOOR UNIT
INSTALLATION-OUTDOOR UNIT
WIRING OUTDOOR UNIT
CONNECT REFRIGERANT PIPES BETWEEN INDOOR AND OUTDOOR UNITS
PIPING GUIDE
INSTALLATION ACCESSORIES
DURING INSTALLATION
SYSTEM INSPECTION AND TRIAL RUNNING
CHECK AFTER INSTALLATION AND TEST OPERATION
INSTALLATION AND MAINTENANCE OF HEALTHY FILTER
TROUBLESHOOTING
USER NOTES AND SERVICE LOG
LIMITED PRODUCT WARRANTY REGISTRATION CARD
WARRANTY AND TECH. SUPPORT
USER NOTES AND SERVICE LOG
MEMO
2
3
4
5
6
8
11
12
12
15
16
17
18
19
22
23
24
25
26
27
27
28
29
30
34
35
36
37
38
Indoor unit
Filter
Guide panel
Air wall sleeve
Display icon (May vary open models):
Outdoor unit
All Units Shall Be Installed by Experienced or Licensed Contractor Or
Technician. Read Manuals before Installation.
Disconnect Box
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.
To correctly sized
HVAC CIRCUIT
BREAKER
Manufacturer Shall NOT Take Any Responsibilities for Any Damage or
Loss Due to Improper Installation or Operation or Natural Disaster.
Don't Supply Power until All Wiring and Tubing and Checking is
Completed. Ground the Unit Following Instructions and NEC, State and Local Codes.
Connection pipe
Drainage hose
Connect All Wiring Securely. Loose Wire or Other Bad Contact May Cause
Arc or Overheating and Fire Hazard.
Air out
End User Technician Contact of Technical Support-Manufacturer
Toll Free Number: 1-866-833-3138 x 703
Email: techsp@ymgigroup.com
Nut
Wrench
(End user needs to contact installation or service technician to check the unit, before the
technicians contact manufacturer technical support-straight technical communication)
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
Bolt
P1 OF 38
Notes: Actual unit/ part looking and installation may vary from the illustrated.
Subject to continuous improvement and change without prior notice.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P2 OF 38
CONNECTION OF WIRES
GET READY FOR INSTALLATION
MISC. ITEMS COMING WITH INDOOR UNIT
WIRING AT INDOOR UNIT AND OUTDOOR UNITS
* Open the front cover panel.
* Remove screws from electrical box cover and put screws in secured position.
* Remove screws from fastener and put screws in secured position.
* Prepare wires of right size and grade.
* Recommend to use factory-provided wire/cables.
* Connected to the terminals following wiring diagrams (terminal or color matches).
* Clamp power/control wires to the structure to keep the tension form being transmitted to the wire connection.
* Replace screws or fasteners back to where they were.
09K/12K Models (115/1/60)
18K/24K Models (208~230/1/60)
1
Mounting plate
1 Pcs.
2
Manuals (User/ Installation/ Wiring/ Diagram)
1 Set
3
Remote controller
1 Pcs.
4
Battery
2 Pcs.
5
Drain spout for outdoor drain pain
1 Pcs.
6
Warranty registration card
1 Pcs.
7
QC Pass
2 Pcs.
OPTIONAL ACCESSORIES THAT ARE PACKAGED AND MAY BE SOLD SEPARATELY
Front (surface)
Panel
Wiring Cover
Front (surface)
Panel
Teminal block
of indoor unit
(To outdoor
unit)
Indoor Unit
Wiring Cover
Teminal block
of indoor unit
(To outdoor
unit)
Indoor Unit
Terminal match
Terminal match
Outdoor Unit
Outdoor Unit
N(1)
2
3
L
N(1)
N
2
3
L1
L2
Terminal block of
outdoor unit
(To power supply)
Terminal block of
outdoor unit
(To power supply)
Note:
* The environment conditions must be taken into consideration when the connections of power cable are made
(such as the ambient temperature, direct exposure to heat/dirext exposure to sunlight).
* The specifications for the power cable refer to the minimum values of the metal core wires, taking into
consideration the voltage losses, the core wire of power cable must be one size larger than the specifications.
* The grounding wire must be connected to the indoor units and outdoor units.
* The laying of power cables must be done by qualified electricians and comply with the regulations of the local
power supply authorities and with the standards of the electric appliance.
1
Installation kit (copper line/wire/drain hose & others)
2
Power and control and or intercommunication cable
3
Foot rise or brackets for outdoor unit
4
Line set covers
5
Wind baffie
LIST OF RECOMMENDED TOOL
1
Screw driver-Phillips-bigger
2
Screw driver-Phillips-smaller
3
Copper tube cutter
4
Copper tube flare expander
5
Wire stripper
6
7
Manifold (R410A)
8
Scissor
Vacuum pump
9
Plier
10
11
Wrentch
Multiple-purpose meter
12
Tape measure
Vacuum before Releasing Refrigerant from Outdoor Unit to Indoor Unit.
PIPING AND WIRING SIZES
Power/ Control Wire
Outdoor to Indoor Unit
HVAC Circuit
Breaker/Fuse AMP
(to Outdoor Unit)
L/N/G, 115/1/60, 14AWG
N(1)/2/3/G, 115/1/60, 16AWG
20/25
15/70/25/35
L/N/G, 115/1/60, 14AWG
N(1)/2/3/G, 115/1/60, 16AWG
25
1/4" & 1/2"
15/100/30/50
L1/L2/G, 208-230/1/60, 14AWG
N(1)/2/3/G, 208~230/1/60, 16AWG 20/25
1/4" & 5/8"
15/100/30/50
L1/L2/G, 208-230/1/60, 14AWG
N(1)/2/3/G, 208~230/1/60, 16AWG 25
Model Liquid/Gas
Line
Min/Max.Length/ Power Wire
Disconnect Switch Box to
+/-Elevation
Outdoor Unit
09K
1/4" & 3/8"
15/70/25/35
12K
1/4" & 3/8"
18K
24K
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
Hexagon Allen wrench
(Front seat to close,
back seat to open)
Service valve
P3 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P4 OF 38
ATTENTIONS-MUST READ AND FOLLOW THE FOLLOWING, PRIOR TO CONNECTING REFRIGERANT LINES
NOTES FOR REFRIGERANT RELATED HVAC PRODUCTS, SPECIFICALLY THE SPLIT TYPE
1. Metering device is installed in this outdoor condensing unit, no other metering device needs to be field-installed
anywhere else.
Thank you for purchasing our product from an authorized YMGI Products distributor. Once you have
opened the box it is required that you carefully read through all the manuals and forms that are enclosed
with your unit. The following shall be understood and agreed upon:
2. One refrigerant filter/strainer is installed in the outdoor unit, no other filter/strainer needs to be field-installed
anywhere else, otherwise it may cause extra pressure drop and even system under-performance or other
problems.
3. If a refrigerant drier is to be field-installed, must be of enough size and correct flow-direction, following drier
Check the delivery against the order and packing list to make sure there is no unit/part/accessory missing or
damaged.
Mark any unit/part/accessory missing on the delivery confirmation paperwork.
Report any freight damage to the carrier within 24 hours of the accepted delivery.
manufacturer's instruction. Fail to do so may cause unit problems.
4. Must check the indoor unit for leakage by checking if the indoor unit still holds the pressurized charge, by
breaking the seal left at indoor refrigerant copper line connection, before connecting it to the inter-connecting
refrigerant copper lines. If for some reason the break is made before you check it, must pressurize it and
check for leakage.
5. Professionally conduct general refrigeration practice to connect copper lines and seal-tight correctly and
properly. Must insulate and secure both discharge and suction copper lines.
6. Must keep the two valves at outdoor condensing unit front-seated (closed), and pressurize the refrigerant flow
cavities between the inter-connecting copper lines and indoor unit to check leakage, before move on to
conduct vacuum leakage test (20-30 minutes under 500 microns recommended).
7. Then back-seat (open) the two valves to release refrigerant factory-precharged in the outdoor condensing unit,
into the inter-connecting refrigerant copper lines and indoor unit, ONLY if the system leakage is checked and
passed (pressurization and vacuum check).
8. Must check all thermal functions at the final stage of installation. Both liquid and gas lines at outdoor
condensing unit valves, should be cold at cooling mode, and hot at heat pump mode. If not cold or hot (E4 or
E5 error code may show up at indoor unit to shut off the system and warn for system checking, must contact
installer or service provider to check refrigerant charge and/or other items, accordingly. How cold or how hot it
needs to be, varies upon ambient temperature, refrigerant charge/pipe length, indoor unit conditions and so on.
9. Adjust/check the refrigerant charge per pressure/temperature (super-heat or sub-cooling) at the service valves,
or length of copper pipes, following the pressure-ambient temperature chart or 25' breaking point rule as
factory-recommended in the installation manual.
Report any unit/part/accessory missing or damaged to sales/customer service at YMGI Products within 24 hours
of the accepted delivery.
Failure to report damaged or missing pieces within 24 hours of the accepted delivery will void any responsibility
for YMGI Products or the carrier.
Before opening the box you will accept:
Vacuum and conduct leakage check for the
interconnecting pipes and indoor unit. If there is any
Due to continuous product engineering improvement,
leakage, locate the source of the leak and repair it
as well as viewing angles and background effect, it is
prior to system operation.
possible that the contained unit may vary slightly from
Make sure the system is sealed tight without any
the unit shown on the box or in specific literature.
leakage potential, before releasing refrigerant from
All units will be shipped new and will not be used.
the condensing unit to the interconnecting pipes and
Although some units may be subjected to random
indoor unit.
inspections during the shipping process, at no time
For any technical questions, have the licensed
shall a unit that has been used be shipped as new.
installer contact our service department from the
This unit is manufactured with the highest standards
installation location.
and is designed to operate free of defects. Failure of
For any information regarding pricing or product
the unit to work properly often depends on many
availability, please contact our sales department or
factors, not limited to but including, the quality of the
an authorized distributor.
installation, power failures, water damage and or
Before your licensed HVAC Technician finishes
damage to the unit as a result of dropping or other
the installation:
mishandling.
Witness the HVAC Technician conduct a thorough
If the unit fails to operate properly, it is agreed that
check of the system including all modes of unit
the Licensed Installer (HVAC Technician) contacts
operation.
YMGI Products Technical Support and/or Customer
Have the HVAC Technician sign all necessary
Service. It is important that only the Licensed
paperwork including your warranty card.
Installer contacts YMGI Products so that our
technical support representative may walk through
It is recommended that you do not pay your licensed
specific technical steps to help resolve the problem.
HVAC Technician in full until your system is working
properly for 30 days.
Important Installation Information:
It is agreed that ONLY a licensed HVAC Technician/
Installation shall conduct the electric and refrigerantrelated installation, including all trouble-shooting work
and will follow all Local/DOE/EPA Codes and Laws.
Failure to have the installation completed by a
licensed installer will void any and all warranties for
your unit.
Contact your licensed HVAC Technician to determine
what portions may be completed by anyone other
than the licensed installer.
It is recommended that the installer should not be
paid in full until all of the installation is completed
including testing of all modes of unit operation.
What you need to know during the installation or
operation of your unit:
Cover the interconnecting pipes before pulling
through any structures to avoid damage from debris
or any foreign material that may enter the refrigeration
system.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P5 OF 38
If there are any problems with system operation,
immediately contact your HVAC Technician to have
the system evaluated.
Instruct the HVAC Technician to contact YMGI
Technical Support with any questions.
About the Warranty:
If the units are installed properly, following
manufacturer instructions, by a licensed HVAC
Technician, the units are covered with a standard
warranty which covers 5-year compressor and 1-year
parts only.
In standard warranty, no labor is included.
Extended warranty may be purchased only at the
time the original unit is purchased at an additional
cost that will extend the amount of time for the parts
warranty and may also include labor in some plans.
Units/Parts shipping is ground only. At an additional
fee, Expedited Express shipping may be requested
in writing.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P6 OF 38
NOTES FOR REFRIGERANT RELATED HVAC PRODUCTS, SPECIFICALLY THE SPLIT TYPE
IMPORTANT NOTES
By Placing Order and Pay to Purchase Our Products from the Authorized Distributors, or by Opening the
Carton Box, You Shall Have Read All Manuals and Instructions and Understood and Accepted and
Agreed to All the Following:
Decision Maker's Own Risks and Is NOT Guaranteed and
What You Will Need to Do at Receiving the
Endorsed by the Manufacturer.
Products
* Good unit may not work properly or correctly. as designed or manufactured, if not installed properly or correctly.
* Customer do-it-yourself (DIY) installation caused and/or will cause trouble to the unit and your property and
yourself.
* YMGI doesn’t allow nor recommend nor honor warranty for DIY installation. Customers take full responsibility
for DIY installation.
* DIY installation may save money at the front, but cost you more down the road, money and other headache.
Shall Check the Delivery Against the Order and Packing
List to Make Sure There is No Unit/Part/Accessory Missing
or Damage.
Shall Mark Any Unit and Part and Accessory Missing on
the Delivery Confirmation Paperwork.
Shall Report Any Freight Damage to the Carrier within 24
Hours as of Delivery.
Shall Report Any Unit and Part and Accessory Missing or
Damage to Sales/Customer Service within 24 hours as of
Delivery.
No Report after 24 Hours as of Delivery, Meaning
Units/Parts/Accessories Have Been Delivered Completely
and No Damage is Found.
What You Will Accept before Breaking the Box
Seal and Opening the Box
Will Not Pay your Technician in Full, Until at Least 30 Days
after All Installation is Finished and Unit(s) Work Properly.
What You Need to Know During Installation or
Operation
Cover the Interconnecting Pipes Before Pulling through
Structures, to Keep from Dust, Debris and Other Foreign
Substances Entering and Damaging the Refrigeration
System.
Vacuum and Conduct Leakage Check for the
Interconnecting Pipes and Indoor Unit. If There is Any
Leakage, Need to Find it and Fix It.
Must Make Sure the System is Sealed Tight without Any
Leakage Potential, before Releasing Refrigerant from the
Condensing Unit to the Interconnecting Pipes and Indoor
Unit.
For Technical Questions, In Order to Help You Out Timely,
You Shall Have the Licensed Technician/Installer, Instead
of Yourself, Check What is Going on before Talking to the
Sales Distributor and/or Manufacturer Technical Support
from Your Job Site.
For Product Pricing and Product Availability, You Shall Talk
with Sales.
For How to Use the Unit or Need Any Parts, You Shall
Read the Manuals or Go Online or Contact Your
Sales/Customer Service at Distributor, if Not Available, then
Contact Customer Service/Support at Manufacturer, via the
Contact Information Printed in the Manual and/or Unit.
Due to Continuous Product/Engineering Improvement, as
Well as Viewing Angles and Background Affects, the
Contained Unit May Look Slightly Differently from What is
Shown on the Carton Box or Spec. Brochures.
The Units Were Manufactured Some Time Prior to the
Shipping Date. Normally The Box is Sealed and The
Units/Parts Contained Are New and Have not Been Used.
For Time to Time, Shipper Does Select Boxes Randomly to
Check the Contained Units/Parts to Make Sure Everything
Be All Right, before Shipping. But, All Units/Parts Have not
Been Used.
The Product is Designed and Manufactured and Tested to
Be Free of Defective at Manufacturer Plants, but if the Unit
will Work or Not, Will Work Properly or Not, Only Depends
upon Many other Factors, Especially the Quality of
Installation. Anything Not Working May Not be the Product
Itself. Which Could be Power Failure, Insufficient or Wrong
Wiring, Not Vacuuming, Pipe Bending or Kinking or
Leaking, Unit/Parts Dropping, Water Damage, and So on.
If the product, for Some Uncontrolled Factors During
Transportation and Installation, Doesn't Function Properly
or Timely Due to Unexpected Failure, You Agree to Have
the Licensed Installer (HVAC or Electrician), instead of
Yourself, Call the Manufacturer Technical Support and/or
Customer Service to Walk through Some Technical Steps
Together, In Order to Find Out the Failure Reason and
What Parts Are Needed. All the Effort is To Limit the
Problems and Make the Unit Work for You As Soon As
Possible and There Will Be No Extra Charge.
Tell the Contractor/Technician that They, not the
Customer/End User, Will be the One to Talk to the
Technical Support, Technically, if There is Anything Not
Right.
What You Needs to Pay Attention to Installation
What You Need to Know about Warranty
Understand to Save on Something but Not Everything.
In Order to Ensure Installation Quality and Validate the
Factory Warranty, Must Hire Licensed HVAC Technician to
Conduct Electricity and Refrigerant-Related Installation
and Trouble-Shooting Work and Follow Related
Local/DOE/EPA Codes and Laws.
Shall Contact Your Licensed HVAC Technician to
Determine What Portion Can be Done Do-it-Yourself (DIY)
and Save Some Money. DIY Installation Varies Upon Many
Factors. DIY Installation May Succeed, but May Be Taking
Chance and/or Running DIY
If the Units are Installed Properly, Following Manufacturer
Instructions, by Licensed HVAC Technician, the Units are
Covered with a Standard Warranty which Covers 5-year
Compressor and 1-year Other Parts Only.
What You Need to Know Before Your Contractor/
Technician Finishes the Installation
Witness the Contractor/Technician to Check the System
Thoroughly and All Functions and Make Sure All Are Good.
Have the Contractor/Technician Sign on the Paperwork.
Don't Pay to the Contractor/Technician in Full Until the
Whole System Works Smoothly Fine without Any Problem
for at Least 30 Days.
Tell the Contractor/Technician that They Need to Come to
the Job Site to Check the System, if There is Anything Not
Right.
In Standard Warranty, No Labor is Included.
Extended Warranty shall be Purchased at Original Unit
Ordering, at Extra Cost to Cover More Years of Parts
and/or Labor.
Units/Parts Shipping is Ground Only. Expedited Express
Shipping Shall be Requested in Writing at Extra Cost.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P7 OF 38
SAFETY CAUTIONS AND ALERTS
Installation, Operation, Maintenance, and Service shall follow professional standards and practices for
conventional cooling and heating equipment, under International, National, State, City or Local Codes, and follow
guidelines listed in all related manuals and associated product information provided directly, from YMGI. Failure
to adhere to proper Installation, Operation, Maintenance, and Service could result in unit malfunction damage to
equipment, personal property, or physical injury, or even death, which YMGI is not responsible for.
Installation must be performed following the
YMGI Installation/Maintenance Manuals.
Installation must be performed by a certified
technical installer only. DO NOT attempt to install
the unit by yourself trying to save money. Do-ItYourself (DIY) installation will void YMGI provided
warranty and could result in injury or death, or
property damage due to fire, electrical shock, leaking,
collapsing, which YMGI is not responsible for.
Install the unit onto a strong load bearing
structure. The location must be capable of handling
the weight load of the unit to prevent the unit from
falling or causing injury. Attach both the indoor and
outdoor units to the brackets that are fixed to the
right position securely.
Only use manufacturer specified and codes
allowed wires and conduits to connect to the
units so the stress is not applied to the sections.
Incomplete connecting and insecure fixing could
cause fire or damage.
Wiring must conform to national regulations.
Failure to adhere to these standards could result in
personal injury or death or property damage due to
fire, electrical shock, falling units, or leaking.
Connect the power cord directly to a designated
and exclusive AC Power Circuit Breaker and or
Disconnect Switch. The circuit must exceed
permissible currents and is free of insulation and
contact defects. Shall refrain from intermediate or
multiple connections to avoid fire or electric shock.
DO NOT supply power until all wiring and tubing
is checked completely.
Double check for gas leaks during or after
installation. The refrigerant gas may cause harmful
substances when subjected to heat or fire.
Refrigerant leakage will cause unit not to generate
enough cooling or heating and even damage
compressors and other parts.
Shut off the main power prior to and during
installation to avoid electrical shock. Make sure
that the electrical power is disconnected from the
unit by making a notice or put a sign at the power
switch panel, to keep other people from setting the
power back during installation.
Connect all wiring securely. Any loose wire or other
bad contact may cause an electrical arc, overheating,
or fire hazard. Make sure that the unit is grounded
following YMGI Instructions and NEC, International,
State, City, and Local Codes. Electrical cover shall be
securely attached to the indoor and outdoor unit
service panels, otherwise, could result in fire or
electric shock due to accumulation of dust, sediments,
water, moisture, etc.
Only use authorized YMGI parts in the
installation, maintenance, service, and repair of
YMGI units. The use of non-authorized or
defective parts will void the warranty and could
cause injury or death or property damage due to
water leakage, falling units, fire, electric shock, etc.
Pay extreme caution to interconnecting
refrigerant copper tubing, when installing or
relocating the unit. Make sure that no other
substance than the specified refrigerant enters the
refrigeration circuit. Any presence of foreign
substances such as air or water or moisture can
cause an abnormal pressure rise or overheat, which
will result in an inefficient unit performance or unit
malfunctions, and will shorten unit lifetime.
Pay extreme caution to interconnecting
refrigerant copper tubing when installing or
relocating split system, as applicable.
1) Make sure that no substance other than the
specified refrigerant enters the refrigeration circuit.
Any presence of foreign substances such as air or
water or moisture can cause an abnormal
pressure or overheat which will result in an
inefficient unit performance or unit malfunction and
will shorten the longevity of the unit.
2) Tape two ends of the copper tubing, tape the
wires for the corresponding indoor
unit to the copper tubing, and mark well with either
A, B, C or D to identify each copper tubing/wiring
bundle. Do not cross wire or mismatch tubing
among indoor units of the multiple zone systems.
Connect the electrical wiring and copper tubing
from each zone of indoor unit to the corresponding
wiring and copper tubing connections of the
corresponding outdoor section (at outdoor
condensing unit). Failure to do so will cause unit
malfunctions, or damages to the compressors and
other parts in the unit and even property or
personal injuries.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P8 OF 38
IMPORTANT NOTES
IMPORTANT NOTES
YMGI LIABILITY DISCLAIMER
SAFETY WARNINGS
YMGI is NOT and shall NOT be responsible for any problems due to customer do it yourself(DIY) installation,
non-licensed installation, and other unprofessional, incorrect, incomplete installation, abuse to the unit, or
abnormal usage which would be considered outside normal constraints, or recommended ranges, and natural
disasters such as fire, flood, earthquake, lighting, or others similar.
READ THESE SAFETY WARNINGS COMPLETELY PRIOR TO ANY USE
YMGI IS NOT AND SHALL NOT BE RESPONSIBLE FOR:
Damage to the units or property or person due to
careless, or incautious, or rough handing at job site,
such as pulling wires or pipes or plastic parts too hard,
dropping units, robbing unit surfaces, and etc.
Damage to the units or property or person due to
unprofessional or incorrect or incomplete mechanical
installation of units. Examples, not limited to, are:
sharp bending, not finding kinks, cracking or
deterioration of connecting pipes, unevenly sitting
units, not securing the units, not cleaning or leaving
dirty inside of or not tightening interconnecting pipes,
not finding refrigerant or water leakage, not
vacuuming, not opening
refrigerant stopping valves at condensing units, not
checking pressures, not covering bared refrigerant
pipes and connections, not taping wire connections,
not sealing drain pipe connections, incorrect piping
such as crossing piping among multiple zones, and etc.
Accumulated costs, services, or disasters due to
unprofessional or incorrect or incomplete installation,
or abnormal usage of the units.
Under performance or damage to the unit, property
or person, at low vacuum level due to unprofessional
or incautious or bad installation, or damage to the
unit or interconnecting pipes after installation and
during usage.
Under performance or damage due to exceeding
the recommended distances or elevation levels
between indoor and outdoor units.
Under performance or damage due to the presence
of any foreign substances left inside refrigeration pipes.
Under performance or damage due to the materials
left in the air-conditioner during installation.
Under performance due to poor installation or
abnormal usage in other formats.
Water leakage problems due to incorrect or poor
installation or unsealed drain hoses.
Damage due to refrigerant or oil leakage as a result
of unsuccessful pipe installation or damage to the
unit and or pipes during or after installation.
Damage due to supplying power before all wiring
and tubing is completely finished and checked.
Damage due to not keeping units in the right
positions during handling, installation or operation.
Damage to the units or property or person due to
customer do it yourself(DIY) installation, non-licensed
installation, and other unprofessional or incorrect or
incomplete mechanical or electrical installation not
mentioned above.
Damage to the units or property or person due to any
other Improper Usage not conforming to YMGI
user regulations, user operation manuals and factory
recommendations.
Under performance or damage due to operating the
air conditioning system under poor physical
conditions such as anywhere there is airflow
blockage, too much sunshine, too much corrosive
gas or the sort.
Under performance or damage due to the Usage
outside the YMGI recommended operation
ambient conditions including proper temperature and
humidity ranges.
Ground connection
Forbidden
Disconnect the plug
Imperative
These precautions are essential and must be strictly observed.
DO NOT draw on the power cord or refrigeration
lines. Install them in secured positions. Plastic
cover of line set is recommended.
DO NOT blow the cold air directly towards people
for prolonged period. Otherwise, people may get
cold.
DO NOT use smaller than enough wires. Do not
put several circuits to one breaker. Don't use
smaller than enough circuit breakers. Otherwise
power failure or fire may be caused.
DO NOT wire or open unit while unit is running.
Sparks or fire may occur. It may cause a shock to
people.
DO NOT pull on the power cord or refrigeration lines.
Install them in a secured position. A line set plastic
cover is recommended.
DO NOT install the indoor unit close to cooking
surfaces or ventilation systems. Poor placement
could inhibit peak performance.
DO NOT install the unit in places where there is
exposure to flammable materials or gas leakage.
DO NOT blow cold air directly towards people for
extended periods.
DO NOT use wire or circuit breakers that do not meet
electrical safety standards. Several circuits cannot
be connected to one breaker.
DO NOT use chemical solvents, flammable
insecticides, or abrasive materials. Clean the unit
only with a soft dry cloth or rag.
DO NOT wire or open the unit while it is running.
Make sure to shut off all circuits prior to inspecting or
servicing the unit.
DO NOT continue to operate the unit if there is any
abnormal odor, burning, scorching, or smoke. Stop
and disconnect the unit immediately.
DO NOT install unit in a damp laundry room or near
flammable gas. All units must be protected by
certified electrical circuit breakers and in accordance
with all safety codes.
DO NOT use the system for anything other than what
it was designed for or any non-HVAC purposes. Do
not store near food, paint, or other chemicals.
Under performance or damage due to the undersized
or oversized unit selection, improper design, incorrect
unit anticipation, and the sort.
Damage due to not grounding or poorly grounding
unit, incorrectly wiring units, loose or unsecured
wiring, or other bad contact which may cause an
electrical arc, overheating, or fire hazard.
Damage or repairs required as a consequence of
faulty installation or application.
Damage due to failure to start as a consequence of
exceeding recommended voltage ranges (too low or
too high), blown fuses, open circuit breakers.
Damage due to the inadequacy or interruption of
electrical service.
Damage or repairs needed as a consequence of
any misapplication, abuse, improper servicing,
unauthorized alteration, or improper operation.
Damage due to the usage of parts not supplied or
designated by YMGI Group.
Damage to the unit, property, and/or person of
whatever kind, direct or indirect, special or
consequential, resulting from the improper
installation or usage of such products.
Damage from the units installed and operated
outside USA or Canada.
Damage as a result of floods, winds, fires, lightening,
accidents, corrosive atmosphere, or other conditions
beyond the control of YMGI Group.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P9 OF 38
DO NOT use the unit in cool or dry mode for
prolonged periods where humidity is higher than 80%.
DO NOT operate the unit for prolonged periods
without refreshing ambient air. Opening a door or
window periodically will suffice.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P10 OF 38
BRIEF INTRODUCTION TO MINI SPLIT WALL MOUNT SYSTEM
Mini Split Wall Mount Systems are designed for high performance, easy installation and service. Each system
consists of one or several indoor units and one outdoor unit, which are connected by one set or several multiple
sets of interconnection refrigerant pipes and electric wires.
As shown in the following sample picture of outdoor unit, air is drawn through the coil from the rear side and then
discharged from the front side. In cooling mode, air passing through coil is heated; in heating mode, air passing
through coil is cooled.
Air In
Air In
IMPORTANT NOTES FOR UNIT OPERATION ABMIENT & SIZING
Since the outdoor units can be installed on a wall or balcony (close to the indoor unit) the following are some
benefits for contractors and customers:
* Indoor unit operates much quieter than air diffuser of central air conditioning system.
* Stylish design of indoor unit adds beauty to rooms.
* Connection pipe, refrigerant usage is much saved compared to installing up-flow condensing units on the
ground and long copper/wire lines needed between indoor and outdoor units.
* Contractor work is eased and time is saved.
* Efficiency and lifetime of system is increased.
Mini Split Wall Mount Systems come with three types: cooling only and heat pump and heat pump with electric
heater. These units can be easily wired. Either indoor unit or outdoor unit can be used with any matched
comparable outdoor unit or indoor unit as long as they have matched size and control. Must refer to electrician
before doing so.
Each system is thoroughly tested before leaving the factory. Each unit is acoustically, thermally and
systematically designed to give optimum quality and reliability.
Air Out
Air Out
Find the cooling/heating load capacity of the space where the unit will be in service. Select matched WMMS units
for the space. Under sizing or over sizing equipment is NOT recommended.
Sample Wall Mount Mini Split System (For Continuous Engineering Improvement and Various Marketing
Needs and Actual Part Availability Reason, Unit Appearance Subject to Change or Update Continuously
without Prior Notice)
Outdoor unit(s) provides the electrical and thermal power for the whole system. Electrical and thermal
components such as compressors and motors and heat exchange coils and others, are incorporated into the
cabinet in an optimized order. They can be either hung on the wall or installed on the ground. Once stacking or
bracket kit is used, some outdoor units can be stacked 2 or 3 units high, upon unit size and applications. Air is
discharged horizontally, quietly and smoothly. These units are perfect fit in locations where installation and
applications of general up-flow condensing units are limited, such as apartments, condos, lofts, multi-families and
high-rise buildings and others named or unnamed.
UNIT ENGINEERING SUBMITTALS-MECHANIAL
INDOOR UNIT-MAJOR COMPONENTS
Air Fiter
Display
Front Panel
or Faceplate
Indoor unit(s) delivers the thermal and acoustical comfort to the rooms. Air is drawn through the coil from the
front or topside and then discharged from the bottom. In cooling mode, air passing through coil is cooled; in
heating mode, air passing through coil is heated. Air is filtered or treated by the built in mechanism (washable or
enzyme equipped or electrostatic powered filter, varies from model to model), before being delivered into the
room, with more than enough comfort and care, at a wide angle (swing or not, varies from model to model).
Apartments
Hotels
Homes
Application Samples of Wall Mount Mini Split Systems
NOTES: Since ductless system is not designed to incorporate or use with ducted return or discharge
tunnels, one single-zone unit SHALL NOT be used to take care of the cooling or heating load of more
than one-story room. Several single-zone ductless systems or multiple-zone ductless systems shall be
proper in this regard.
Auto-Directional Louvers
(Up and Down)
Manual or Motorized Louvers
(Left to Right, Right to Left)
Test/Reset Switch
These units are designed for applications at:
* Residential
* Light commercial
* Institutional
* Industrial
* Commercial
* Hospital
Remode Control
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P11 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P12 OF 38
UNIT ENGINEERING SUBMITTALS-MECHANIAL
INDOOR UNIT
UNIT ENGINEERING SUBMITTALS - MECHANICAL
OUTDOOR UNIT
(Top view)
W2
D2
(Front view)
(Left view)
(Right view)
W
(Bottom view)
D
Tube exit option-right
Tube exit option-left
Unit
Model
D
H
Dimensions (In)
Weight (Lbs)
W
H
D
Net
Operation
09K
33.3
10.8
7.1
24
25
12K
33.3
10.8
7.1
24
25
09K
Unit
Model
Dimensions (In)
Weight (Lbs)
W
H
D
Net
Operation
18K
37.0
11.7
7.9
28.3
31
24K
39.7
12.4
8.6
35.3
38
W1
D1
12K
21.4 In
15 In
21.3 In
15 In
9.4 In
9.4 In
3.2 In
4.9 In
18K
3.2 In
4.9 In
24K
27 In
11.4 In
11.4 In
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
Dimensions (In)
Unit
27.3 In
P13 OF 38
Weight (Lbs)
Model
W
W1
D2
Net
Operation
09K
30
33.4 21.3 21.3 10.1 12.6 11.3
79
82
12K
30
33.4 21.3 21.3 10.1 12.6 11.3
88
92
18K
35.0 37.9 22.0 27.6 13.4 15.6 11.5
110
115
24K
36.2 39.4 24.0 31.1 14.6 16.8 15.7
119
125
W2
H
D
D1
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P14 OF 38
INSTALLATION
CLEARANCE
REQUIREMENTS
GENERAL
USER NOTES
AND
SERVICE LOG
INSTALLATION POSITIONS FOR INDOOR UNIT
MAKE SURE OF ENOUGH SPACE FOR INSTALLATION AND MAINTENANCE
To take into consideration the operational convenience and safety in installation, it is recommended to ensure
enough space between the unit and the walls.
6"
>7.8 In
6"
6"
12"
(If piping runs
to Left)
>6 In
>8 In
(If piping runs
to right)
Attention: If there are some additional function devices to install on the unit, be sure add to the
installation space for the function devices.
100"
INSTALLATION CLEARANCE REQUIREMENTS AROUND THE OUTDOOR UNIT
18 In
18 In
8 In
6 In
8 In
20"
1 In
6 In
6"
12"
38 In
20"
18
"
21"
11"
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P15 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P16 OF 38
INTRODUCTION
INSTALLATION POSITIONS FOR OUTDOOR UNIT
* To be installed at the position where the air delivered from the unit can reach every comer of the room.
* To avoid being affected by the outdoor air.
* To avoid blockage to the air inlet or outlet of the unit.
* To avoid too much oil smoke or steam.
* To avoid possible generation, inflow, lingering or leakage of flammable gases.
* To avoid high-frequency facilities (such as high frequency arc welders, etc.).
* To avoid the places where acid solutions are frequently used.
* To avoid the places where some special sprayers (sulfides) are frequently used.
* Not to install on top of the musical instruments, TV, computer etc. valuable appliance.
* Not to install a fire alarming device near the air outlet of the unit (during operation, the fire alarm device might
be erroneously triggered by the warm air from the unit).
INSTALLATION LOCATIONS
The location and structure shall also be convenient for both installation and service.
The location shall NOT be where discharge air and noise could bother your neighbor.
The location shall NOT be somewhere drain may cause any damage to property or bother the neighbor.
The location shall NOT be somewhere soldering or torching work may cause fire or smoke to the
materials around.
The location shall NOT be somewhere near flammable gases.
The location shall NOT be in or close to corrosive gases.
The location shall NOT be somewhere children can access.
Inspan the unit for damage and missed parts or accessories. If damage is found or parts are found
missing, call the distributor right away.
Spin fan wheels or blades to check if and make sure they can rotate freely. If fan wheel scratches with
housing, call the distributor right away and do not to proceed with the installation before it is fixed.
HEIGHT LIMITS OF INDOOR AND OUTDOOR UNITS
Check the unit to make sure no foreign materials has been left in the unit.
* Either the indoor unit or the outdoor unit can be higher, but the height difference must comply the stated r
equirements.
Check all the parts and accessories that are needed other than those provided with the unit.
It is strongly recommended to only use YMGI supplied or recommended parts and accessories.
* Try to reduce the bending of the piping line as much as possible so as to avoid possible negative impacts upon
the performances of the units.
Be sure a properly sized circuit breaker is for the electric power to the units.
* Make P-trap if elevation drop difference is more than 25", as illustrated below.
Pre-build the support platform on the ground or bracket for the wall before or during construction and
before installation. Refer to the table below for footprint dimensions.
Indoor unit
Outdoor unit
Read installation instructions of all units thoroughly.
Ask rep./distributor/us anything you are not sure about.
Drop
Lift
Get your tools and parts ready for installation.
18 In
Outdoor unit
All Units Shall Be Installed by Licensed Contractor or Technician.
P-Trap
Indoor unit
Read Manuals before Installation.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P17 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P18 OF 38
DURING INSTALLATION-INDOOR UNIT
DURING INSTALLATION-INDOOR UNIT
INSTALL WALL MOUNT PLATE
PREPARE INDOOR UNIT- COPPER LINE SET/DRAIN HOSE
If pipes need to be rerouted to a different direction
from the one preset at factory (towards left side, if
facing the front cover of indoor unit), lay down the
indoor unit on soft cushion or foam. Don't rub the
plastic casing.
* Check unit to make sure the unit is good shape and ready to install.
* Check to make sure the installation location is firm enough to hold the weight of the whole unit and is
convenient to installation, maintenance, service and close to the indoor unit but not causing noise or airflow
issues to neighbour.
* Install Indoor unit. Enough anchor bolts/nuts shall be used to secure mounting plates for indoor units.
Brackets should be at level position.
In order to keep from pipe damage, need to bend
the copper tubing set gently and slowly (finish
bending no less than 10 seconds/90 degree), by
holding at the root of the original 90 degree bend
nicely and firmly. Don't rub two copper lines during
bending. Better to cut off the insulation and bend
the two pipes one by one, not two together.
Install Mounting Plate and Drill Hole for Combination of Copper Line/Wire Cable/Drain Hose
NOTES:
Anchors must be put into the holes, where the solid
arrows are pointing, as shown above, to secure the
mounting plate firmly and to hold the weight of indoor
unit. If more screws/anchors are to be used, make
sure to keep the two holes close to each other, at
least 2 inches apart.
Mounting plate should be attached to the structural
part of the wall. Minimum clearance, as shown below,
is required in order to ensure proper airflow and
enough service room.
Locate the central hole at the stud (firn structure)
At least 12
inches
18" or
more from
sidewall
18" or more
from sidewall
a
Mounting Plate
c
STEPS TO MOUNT PLATE:
Slice the insulation before
bending.
Hold the 90 degree bend root,
bend one tube one time, slowly,
no quicker than 10 seconds/90
degree bend.
INSTALL DRAIN PIPE AT INDOOR
Respect the slope
Anchors of selftappping screw
If pipes need to come out of the rear side (facing
the front of indoor unit) of the indoor unit, no need
to snap off anything.
Plumb
Drill mounting holes
b
to make sure at least
either one of three
dimensions a, b and
c is 16" center to
center.
Mark drill positions. At least 4 anchor holes, one at each perimeter corner of the plate are needed to secure the
plate, where the bold arrows are pointing, as shown in the picture above. Refer to the specification sheet for
unit weight so that enough anchors are installed at proper positions.
Pre-drill guiding holes where are marked for anchors or screws on the wall
Confirm the position of the holes and finish drill to the depth needed for anchors (NOT for screws)
The drain hose must be placed beneath the copper
pipes and MUST NOT be hunched or bended
sharply.
Insulation pad (underlay) should be used where
the pipe contacts the wall.
Drain hose coming with indoor unit
Do not pull the drain hose too hard, otherwise it
may get broken.
Before passing drain hose through the hold, wrap
with insulation to keep from possible damage.
The copper pipe and the drain hose must be
wrapped by piping wrap.
Drain hose extending to drain line
Align mounting plate holes with those holes drilled on the wall and put anchors or screws into the holes to
secure mounting plate.
DRILL 3IN HOLE FOR PIPING/WIRING/DRAIN
Locate the centre where the hole will need to
drilled.
Drill the holes of 2.5-3Inch diameter. A down pitch
about 1/4" per foot, as illustrated below, is needed
for the hole, in order to drain the condensate
properly.
Insert ruler
Hole Diameter: 2.5~3 In
Align ruler with straight line
PREPARE INDOOR UNIT- COPPER LINE SET/DRAIN HOSE
If pipes need to come out of the right side (facing
the front of indoor unit) of the indoor unit, snap off
portion 1 on plastic casing.
If pipes 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 unit) of the indoor unit, snap off
portion 3 on plastic casing.
1
3
2
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P19 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P20 OF 38
DURING INSTALLATION-INDOOR UNIT
INSTALLATION-OUTDOOR UNIT
REFIT DRAIN HOSE FROM THE RIGHT TO THE LEFT SIDE
INSTALL OUTDOOR UNIT
If drain hose needs to be refitted from the original
position (right side) to left side of the indoor unit,
careful handing is very necessary.
Strongly suggest to install the outdoor unit above the ground either on platform or brackets as shown below.
Heat pump unit must be lift up from ground level, since condensate must be drained out of the drain pan in
condensing unit; othewise, condensate may be iced up to damage the condensing unit.
Refitting method: remove the drain hose from
original position, without breaking hose. Unplug
the plug at the left side. Apply water-resistant glue
to fit the drain hose and the fitting before securing
it.
Apply water-resistant glue onto the plug and fit it
back into the condensate connection at right side.
Suggest to use YMGI-provided brackets and condensate drainage fitting accessories.
Condensate connection
at left side
Drain hose
HANG INDOOR UNIT
>18"
>18"
NOTES: May use some sort of clamp to double secure connections.
Brackets
Heavy-Duty PVC Riser
Coated Brackets
W A ccessories
Bracket Accessories
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 hanging rib at rear side of plastic
casing).
Snap the plastic casing bottom into the mounting
plate, gently .
SHAPE THE DRAIN HOSE
To drain the condensate easily, the drain hose should be inclined downward (pitched towards drain direction
1/4" per foot).
Figures below from the 2nd to 5th show some incorrect practices.
(Actual unit/parts looking/installation may vary from the illustrated)
INSTALLATION & PICTURES-WALL MOUNT BRACKET FOR OUTDOOR UNIT(S)
(PART VARIES UPON MODELS/AVAILABILITY)
Select a secured location where the outdoor unit will be installed properly.
Drain hose may be extended using the hose coming with the installation list.
Orient the unit rear side (intake grill) towards wall and front side (discharge grill) away from wall.
For ground installation, use factory-provided riser and accessories. Not to bolt unit feet directly onto ground.
Riser or brackets shall be levelled at outdoor unit foot surfaces. Secure unit foot by tightening bolts, nuts and
anti-vibration pads.
2 in or less
from floor
For wall mount installation, use factory-provided brackets, anchors and accessories.
STUFF AND SEAL THE HOLE FOR COPPER LINE SET/WIRE CABLE/DRAIN HOSE
Use putty to seal the wall hole.
Use clamp (pipe fastener) to secure the
pipe at specified position.
Trim the extra portion.
Sealed with putty
Secure the piping/
wiring set with clamp
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P21 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P22 OF 38
CONNECT REFRIGERANT PIPES BETWEEN INDOOR AND OUTDOOR UNITS
WIRING OUTDOOR UNIT
CONNECT WIRING BETWEEN OUTDOOR UNIT AND INDOOR UNIT
Check the nameplate for rated electrical data.
Check power and wire length and sizes. Use NEC, 105oC/221oF type copper wire. Refer to the following tables,
for proper selection of wire gauge and colour.
OUTDOOR WIRING: OUTDOOR-INDOOR UNIT & DISCONNECT SWITCH
BOX/CIRCUIT BREAKER/FUSE
Remove the wiring diagram cover where also the
handle for moving unit is located.
Follow the wiring diagrams on the unit or the wiring
diagram manual that comes with the indoor unit to
get familiar with wiring and make sure nothing is
made wrong. If there is any discrepancy, always
use the one put in the units.
Connect wires between indoor unit and outdoor
unit-power wire from outdoor to Indoor, control
wires from Indoor unit to outdoor unit. Pass wire
through certified wire pipes, harnesses and
knockouts. Enough length shall be left for future
service. Only copper wire is allowed.
Strictly follow NEC or state or local codes to select
wires, circuit breaker, conduits and to perform
installation work.
Bring in line-voltage power input wires from circuit
breaker to line-voltage wire terminal block at
outdoor unit. Pass through certified wire pipes,
harnesses and knockouts. Enough length shall be
left for future service. Only copper wire is allowed.
Disconnect switch box for outdoor unit
N(1)/2/3/G, 115/1/60, 16AWG
20/25
15/70/25/35
L/N/G, 115/1/60, 14AWG
N(1)/2/3/G, 115/1/60, 16AWG
25
1/4" & 1/2"
15/100/30/50
L1/L2/G, 208-230/1/60, 14AWG
N(1)/2/3/G, 208~230/1/60, 16AWG 20/25
1/4" & 5/8"
15/100/30/50
L1/L2/G, 208-230/1/60, 14AWG
N(1)/2/3/G, 208~230/1/60, 16AWG 25
15/70/25/35
12K
1/4" & 3/8"
18K
24K
Line Sizes at Different Length
K
Valve Size
Btu/h
Liq, Gas
15-35ft
36-60ft
09
1/4", 3/8"
1/4", 3/8"
1/4", 1/2"
12
1/4", 1/2"
1/4", 1/2"
3/8", 5/8"
18
1/4", 1/2"
1/4", 1/2"
3/8", 5/8"
24
1/4", 5/8"
1/4", 5/8"
3/8", 3/4"
Refrigerant Pipe Min/Max. Length, Rise and Drop Height
L/N/G, 115/1/60, 14AWG
1/4" & 3/8"
Refrigerant Valve and Pipe Size/Length
CONNECT REFRIGERANT PIPES
(Field-Supplied, Not Spliced and Not Knotted,
Water-Proof Sealed Tight, UL Approved)
HVAC Circuit
Breaker/Fuse AMP
(to Outdoor Unit)
09K
For distance other than 25' between indoor and
horizontal venting condensing units, refer to the
following table for copper sizes.
Use clean refrigeration grade of copper tubing only.
Keep the copper lines from kinking and transmitting
noise to walls, cabinets, etc. Not to exceed 100' with
35' of vertical lift included. Insulate the suction line
with at least 3/8" thick insulation tubes. Band and
tape and secure refrigerant lines. Support copper
lines at proper distance apart to keep tubes from
sagging.
Make sure the pipe section where is to be cut is
straight and smooth. Apply cutting blade straightly
perpendicular to the pipe surface. Don't cut too fast
or too hard. Turn and tighten the tube cutter slowly.
Remove residual left at the cutting edge. The cutting
edge should be clear and clean and smooth.
Power/ Control Wire
Outdoor to Indoor Unit
Min/Max.Length/ Power Wire
Disconnect Switch Box to
+/-Elevation
Outdoor Unit
REFRIGERANT PIPES:
Running Interconnection Refrigerant Lines:
CUT REFRIGERANT PIPE:
PIPING AND WIRING SIZES
Model Liquid/Gas
Line
Firstly, connect copper tubes at indoor unit. Bend
pipes by tools but not by hands. Extra length is
needed for future service.
1,000 Btu/h
Min. Length (Ft.)
Max. Length (Ft.)
Max. Rise Height (Ft.)
Max. Drop Height (Ft.)
09
15
70
35
45
12
15
75
35
45
18
15
100
50
60
24
15
100
50
60
Connect Copper Pipes-Flare/nut Connection at Both Indoor and Outdoor Units
Proper torque shall be applied to make good connection at female nut, flare and male nut, as recommended in
the following table. Too much torque may damage and break flare/nut seal. Too less torque may not ensure
good seal. ALWAYS use a pair of wretches.
Refrigerant Pipe Flare/Nut Connection Tightening Torque
Flare Nut
1/4-3/8"
1/4-1/2"
1/2-3/4"
7/8-1 1/8"
Tightening Torque
25 Ft. LBs (350 Kgf.cm)
40 Ft. LBs (560 Kgf.cm)
60 Ft. LBs (840 Kgf.cm)
110Ft. LBs (1540 Kgf.cm)
Connect Copper Pipes-Sweat Connection
In this case, put wet rag to protect valves or other components from being overheated. When using flux, rub the
tube surface using steel wool to shine and clean to dry as so to keep to-be-sealed system from any possible
contamination.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P23 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P24 OF 38
CONNECT REFRIGERANT PIPES BETWEEN INDOOR AND OUTDOOR UNITS
Seal Copper Line Set/Wire Cable/Drain Hose Line Combination
CONNECT REFRIGERANT PIPES
Seal Copper Line Set/Wire Cable/Drain Hose Line Combination:
Heat insulator (indoor unit)
Interconnection cable
* Use factory-recommended components, as briefly illustrated below.
* Cover line set in a sequence, either from indoor to outdoor, or the other way.
* Secure line set covers onto the wall using factory-recommended accessories.
Ribbon vinyl
LINESET COVERS
Sealing tape
Heat
insulator
(connection
pipe)
Connecting pipe
INSTALLATION ACCESSORIES
PiPe
Interconnection cable
Not to damage line sets.
Sealing tape
PiPe
Join the tubes insulators and refrigerating
connection so as there is no space.
Pipe of indoor unit
Interconnection cable
Drain hose
Drain hose
Clamp
Outdoor screw
Putty
Pipe
Overlap nylon ribbon
or similar wrap.
RIibbon viyl
INLTS
STRT
COUP
COUP-H
OFST
ELBF9
ELBF4
SOFT
TEE ENDF
RDER
Wall
Out
* Run cables along with the refrigerating copper line sets and secure them with tapes at 6 feet apart.
* Wrap tape closely (cover a third of the width of the nylon ribbon tape applied early) to get good seal.
* Tape to seal the end of taping.
* Shape the pipe combination gently, without causing kinking, sharp bending, or other damage to it.
* Fix the pipe combination securely on the external wall with proper clamps, as drafted below, at 6 feet apart.
OUTDOOR UNIT FOOT RISER OR BRACKETS
* Fill the gap between the wall hole and wall sleeve with putty to keep from rain or dust getting inside.
BRKT-SC1
* Made of sturdy steel.
* Painted with weatherproof polyester powder.
* Anchors/nuts/screws (general use) may be included.
PIPING GUIDE
Size(Inch)
Model
To keep the allowed bending
radius, please make the
packed soft pipes vertical for
expanding.
Please do not expand
only one side of the
packed soft pipes.
Please make use of
semicircle pulley to keep
the allowed bending
radius.
Extremely bending could
damage the pipes.
Please use twisting
wheel to avoid improper
bending.
A
17.7
21.7
21.7
22.4
BRKT-0912-SC1
BRKT-1824-SC1
BRKT-2430-SC1
BRKT-3660-SC1
B
Capacity
LBs
158
220
264
396
B
13.8
17.7
17.7
21.7
A
Btu/h
09K-12K
18K-24K
24K-30K
36K-60K
BRKT-ST1
* Made of stainless steel.
* Anchors/nuts/screws (general use) may be included.
Size(Inch)
Model
Over length soft pipes
will lead to irregular
bending.
A
17.7
21.7
21.7
22.4
BRKT-0912-ST1
BRKT-1824-ST1
BRKT-2430-ST1
BRKT-3660-ST1
LBs
158
220
264
396
B
13.8
17.7
17.7
21.7
B
Capacity
Btu/h
09K-12K
18K-24K
24K-30K
36K-60K
A
RIST-PVC
Please use rigid elbow
to keep the bending
radius while soft pipes
operating.
Undersize bending will
damage the soft pipe.
Please keep the
minimum bending
radius while installing.
Short soft pipes will
have them bending
undersize, it's not
allowed.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P25 OF 38
Ground Riser
Accessories: End Caps (Optional)
* Shock-proof PVC, Weatherproof & UV resistant.
* Supplied with fastening screws and anchor bolts.
* Easy and quick to install on any ground surface.
* The “honeycomb” structure acts as an anti-vibration & humming
absorption for a quite operation.
Model
RIST-0912-PVC
RIST-1860-PVC
Size(Inch)
A
14.2
17.7
B
3.7
3.7
C
3.1
3.1
C
B
A
D
Capacity
D
4.1
4.1
LBs
158
220
Btu/h
09K-18K
18K-60K
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P26 OF 38
CHECK
AFTERNOTES
INSTALLATION
AND TEST OPERATION
USER
AND SERVICE
LOG
DURING INSTALLATION
VACUUM REFRIGERANT PIPES
CHECK AFTER INSTALLATION
Evacuate the pipes between indoor and outdoor units, using vacuum pump and manifold/gauge set, to a
minimum of 500 microns (service valves remain front seated). Hold for 30 minutes to check if the vacuum level is
maintained. Using dry nitrogen or other leakage detection tool for leak checking. Be certain there is no pressure
in the system when repairing a leak.
Items to be checked
Has the been unit positioned firmly?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test?
It may cause insufficient cooling(heating)
capacity.
Is heat insulation sufficient?
It may cause unexpected condensate and
dripping.
Is drainage pipe tested ?
It may cause leakage or unexpect dripping.
Is the voltage in accordance with the rated
voltage marked on the nameplate?
It may cause electric malfunction
or damage to the part/unit.
Is the electric wiring and piping
connection installed correctly and securely?
It may cause electric malfunction
or damage to the part/unit.
Has the unit been connected to a secure
earth connection?
It may cause electrical leakage.
Is the power cord specified properly per
NEC codes ?
It may cause electric malfunction
or damage to the part/unit.
Is the air inlet and outlet been cleared?
It may cause insufficient cooling(heating)
capacity, and unexpected noise.
Has charge be adjusted to mateh the
and refrigerant capacity been recorded?
The refrigerant unit noise, iced up
overheat insufficient cooling or heating
Vacuum before Releasing Refrigerant from Outdoor Unit to Indoor Unit.
Hexagon Allen wrench
(Front seat to close,
back seat to open)
Service valve
SYSTEM INSPECTION AND TRIAL RUNNING
PRESSURE CHECKING
System pressure checking is one of the basics to find out the status of system performance and
diagnose any problems.
The following curves are only reference for system pressure checking. Actual pressures may vary upon many
factors such as inter-connecting pipe length, refrigerant charge / leakage level, elevation difference between
indoor unit and outdoor unit, tool calibration, reading error, and so on.
580
3.5
507
3.0
435
362
2.5
2.0
290
1.5
217
0
TEST OPERATION
1. Before test operation
(1) Do not turn on power before installation is finished completely.
(2) Electric wires must be connected correctly and securely.
(3) Cut-off valves of the connection pipes should be back seated/tunned on.
CONDENSING PRESSURE (PSI (G))
CONDENSING PRESSURE (MPa (G))
4.0
Possible malfunction
(4) All the impurities such as scraps and thrums must be cleared out of the unit.
2. Test operation method
(1) Switch on power, press "ON/OFF" button on the wireless remote control to start the operation.
(2) Press MODE button, to select the COOL, HEAT (not available for cooling only unit is ), FAN and so on to check :
* All the functions (to make sure the unit functions correctly and poroenty).
* Refrigerant (pressures/temperatures at sericea values/pipes should be good).
* Drainage (condensate/water flow should be dripping out of drainage pipe ONLY).
* Noise (there should be no abnormal symbol)
0
20
40
60
80
100
120
140
OPERATION FREQUENCY
Warning:
R410A refrigerant bears higher pressures than R22. Only handled by Licensed HVAC technician.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P27 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P28 OF 38
INSTALLATION AND MAINTENANCE OF HEALTHY FILTER
TROUBLESHOOTING
INSTALLATION INSTRUCTIONS
CONFIRMATION
1) Confirmation of Power Supply
Confirm that the power breaker operates(ON) normally;
2) Confirmation of Power Voltage
Confirm that power voltage is AC 220-C230-C240 10%. If power voltage is not in this range, the unit may not
operate normally.
FLASHING LED OF INDOOR/OUTDOOR UNIT AND PRIMARY JUDGEMENT
Indoor unit displaying method
Take out the healthy filter before cleaning according to the installation instruction. Pay special attention to that
silver ion filter can't be cleaned with water, while active carbon, photo catalyst, low temperature conversion (LTC)
catalyst, formaldehyde eliminator, ca-techin or mite killing filter can, but can't with brush or hard things. Dry it in
and reinstall it after cleaning the shade or sun after cleaning, but not by wiping.
SERVICE LIFE
No.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P29 OF 38
Indicator display (LED
blinks 0.5s-ON/0.5sOFF)
Outdoor unit
display (LEDs
have 3 status)
AC status
Running Cooling
LED
LED
Malfunctions
Heating
D40 D41 D42 D43
LED
High pressure of system, might be:
1) Refrigerant is too much;
2) Poor heating exchanging for units
(including heat exchanger is dirty
and unit heating radiating ambient
is poor);
3) Ambient temp. is too high.
1
System high
pressure
protection
2
3s off
Anti-freezing
blink
E2
protection
twice
1) Poor indoor unit air returning;
Cooling, dehumidifying, compressor,
2) indoor fan motor rotating speed
outdoor fan motor will stop running,
abnormal;
indoor fan motor will keep running.
3) Evaporator is dirty/.
3
Compressor
air exhaust
high temp.
protection
Cooling, dehumidifying, compressor,
outdoor fan motor will stop running, Pls refer to trouble shoot (air
indoor fan motor works. heating: all exhaust protection, overload)
stop running.
The healthy filter commonly has its usage lifetime for one year under normal condition. As for silver ion filter, it is
invalid when its surface becomes black (green).
This supplementary instruction is provided for reference to the unit with healthy filter. If the graphics provided
herein is different from the physical goods, the latter one shall prevail. The quantity of healthy filters shall be
based on the actual delivery.
Name of
malfunction
Double 8 code display
CLEANING AND MAINTENANCE
3s off
E1 blink
once
3s off
blink
E4
four
times
Cooling, dehumidifying, except the
indoor fan motor is running, others
will stop to running
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P30 OF 38
TROUBLESHOOTING
AC overload
4 protection
Cooling, dehumidifying, compressor,
outdoor fan motor will stop, indoor
fan will work, heating; all will stop
Off 3s
E5
blink
5 times
Indoor and
Off 3s
outdoor units
5
E6 blink
communication
6 times
malfunction
Off 3s
Anti-high tcmp.
6 protection
E8 blink
8 times
Off 3s
Indoor unit
H6 blink
7 motor no
11
feedback
times
9
10
11
12
Outdoor air
exhaust
13 sensor
open circuit,
short circuit
Whole unit's
18 current testing U5
malfunction
Off 3s
blink 13
times
Cooling, dehumidifying: compressor
The circuit on API has malfunction,
stops running, indoor fan motor
replace the outdoor unit API.
works. Heating: all will stop running.
Compressor
current
19 overcorrect
protection
P5
Off 3s
blink 15
times
Please refer to troubleshooting (IPM
Cooling, dehumidifying: compressor
protection, compressor lose steps,
stops running, indoor fan motor
compressor current overcorrect
works. Heating: all will stop running.
protection).
Please refer to trouble shooting
Cooling, compressor will stop,
indoor fan motor works. Heating;
all will stop.
Please refer to trouble shooting
20 Defrosting
H1
Off 3s
blink
once
Whole unit will
stop to run
1) Poor insert for GPF;
2) Indoor control board API
malfunction;
3) Indoor motor M1 malfunction.
Electrostatic
21 dedust
protection
H2
Off 3s
blink
twice
Whole unit will stop to run
Indoor control board
APl jump cap poor connected,
please reinsert or replace
the jump cap.
F1
Off 3s
blink
once
Cooling, dehumidifying: indoor fan
motor is running, other overloads
will stop; Heating, whole unit will
stop to run.
1) Room temp. sensor is not
connected with the control
panel AP1;
2) Room temp. sensor is damaged.
F2
Off 3s
blink
twice
Cooling, dehumidifying: indoor fan
motor running, other overload will
stop; Heating, whole unit will stop.
1) Tube temp. sensor is not
connected with the control panel
AP1;
2) Tube temp. sensor is damaged.
F3
Off 3s
blink
three
times
Cooling, dehumidifying: compressor
will stop, indoor fan motor will work.
Heat: all will stop
Outdoor room temp. sensor hasn' t
connected well, or damaged, please
refer to the sensor resistance value
for checking.
F4
F5
Overload limit/
14 descending
F6
frequency
Over current
need
15 frequency
descending
1) Power supply is not stable,
fluctuation is too much;
2) Power supply is too low,
overload is too much.
Cooling, compressor will stop,
indoor fan motor works. Heating;
all will stop.
Off 3s
Jump wire cap
blink
C5
mal
function
8
15
protection
times
Indoor ambient
sensor open
circuit,
short circuit
Indoor
evaporator
sensor circuit,
open, short
circuit
Outdoor
ambient
sensor circuit
open, circuit
short
Outdoor
condensor
sensor open
circuit, short
circuit
TROUBLESHOOTING
Outdoortub temp. sensor hasn' t
connected well, or damaged,
please refer to the sensor resistance
value for checking.
Off 3s
blink
18
times
Cooling, dehumidifying: compressor
will stop, indoor fan motor will work.
Heat: all will stop
Off 3s
blink
5
times
1) Exhaust temp sensor hasn' t
Cooling, dehumidifying: after running
connected well, or damaged,
for 3mins later, the compressor will
please refer to the sensor ;
stop to run, indoor fan motor will
resistance value for checking.
start to run. heating: after run 3mins
2) Sensor head hasn' t insert into
later, all will stop to run.
the copper tube.
Off 3s
blink
6 times
Overload normal operation,
compressor is running, frequency
descending
Please refer to troubleshooting
F8
Air exhaust
over high
16 need frequency F9
descending
DC generatrix
PH
17 voltage
is too high
Overload normal operation,
compressor is running, frequency
descending
1) Input power supply is too low;
2) System voltage is too high,
overload is too much.
Off 3s
blink
9 times
Overload normal operation,
compressor is running, frequency
descending.
1) Overload is too much, ambient
temp. is too high;
2) Refrigerant is short;
3) Electric expansion malfunction.
Cooling, dehumidifying, compressor
stop running fan motor works.
Heating: all will stop.
1) Testing wire terminal L and N
position If higher than 265VAC,
please cut off the power supply
and restart until back to normal;
2) If input voltage is normal, testing
the voltage of electrolytic
capacitor on API after turn on the
unit. There may be some problem
and replace the API if the
electrolytic capacitor voltage
range at 200-280V.
Off 3s
Blink
11
times
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P31 OF 38
It is normal function
H3
Off 3s
blink 3
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
1) Wire terminal OVC-COMP loosen
or circuit, has problem, the
resistance of SAT should be lower
than l ohm.
2) Please refer to troubleshooting
(exhaust/overload protection)
H4
Off 3s
blink 4
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Pls refer to troubleshooting
24 IPM protection H5
Off 3s
blink 5
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Pls refer to troubleshooting
25 PFC prtection HC
Off 3s
blink 6
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Pls refer to troubleshooting
Compressor
26 lose steps
H7
Off 3s
blink 7
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Pls refer to troubleshooting
Heating, anti27 high temp.
declines
H0
Off 3s
blink 10
times
Overload normal works, compressor
Pls refer to troubleshooting
running, frequency declines
28 Starts up fail
Lc
Off 3s
blink 11
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Compressor
current testing
29
U1
circuit
malfunction
Off 3s
blink 13
times
Compressor
22 overload
protection
23
System
abnormal
Pls refer to troubleshooting
Replace the outdoor control board
API
EEPROM
malfunction
EE
Off 3s
blink 15
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Capacitor
31 charge
malfunction
PU
Off 3s
blink 17
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Module sensor
32 circuit diagram P7
Off 3s
blink 18
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
Module
temp.
33 over high
protection
P8
Off 3s
blink 19
times
Cooling, dehumidifying; compressor
stops running, indoor fan motor
works. Heating: all will stop running
To check whether the ambient
Temp. of IPM is too high or the heatsinhing of IPM is dirty else replace
the outdoor baord API
DC Bus
34 voltage dips
U3
off 3s
blink 20
times
cooling, dehumidifying; compressor
will stop, indoor fan motor works,
Heating: all will stop
Power voltage is not staable
PL
off 3s
blink 21
times
cooling, dehumidifying; compressor
will stop, indoor fan motor works,
Heating: all will stop
1) Check the Input voltage if the
Voltage is lower than 150VAC,
restart the machine when the
power supply is normal
2) Checking the reactor L connection
30
Off 3s
blink
8 times
Under the heating mode,
compressor running, indoor/outdoor
fan motor stop working
Low DC Bus
35 voltage
protection
Replace the outdoor control board
API
Pls refer to Part 3 capacitor charging
fault of troubleshooting
Replace the outdoor control board
API
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P32 OF 38
NOTES AND
SERVICE LOG
LIMITEDUSER
PRODUCT
WARRANTY
POLICIES
TROUBLESHOOTING
IPM temp. is
too high limit/
36 decrease
frequency
EU
Whole unit break for 30mins and
discharge, to check the outdoor
Overload normal works, compressor control board API's IPM module
coolant whether is short, the radiator
running frequency declines
is tightened. If above phenomenon
is not ok, please improve or replace
the control board API
LIMITED PRODUCT WARRANTY
POLICIES
YMGI Group (YMGI) products are designed and manufactured free from defects in workmanship and
materials for normal use and maintenance. YMGI products are designed and manufactured to the qualities
to keep installer(s) and user(s) from any trouble and to bring total comfort to unit(s) owner(s) and end user(s).
This malfunction happened, only in
heating mode, all will stop to run
1) Power supply voltage is lower
than AC175V
2) Wire terminal 4V loosen or wire
break
3) 4V damaged, replace 4V
Outdoor unit
38 zero-cross
U9
detecting error
Cooling: compressor will stop,
indoor fan motor works.
Heating: all will stop
Replace the outdoor control board
APl
1. Five-year compressor and sealed system
2. One-year other parts
3. Ground shipping only
Anti-freezing
39 limit/decrease FH
frequency
All loads work normally but the
running frequency limited or
decrease
Indoor unit air return is poor or fan
speed is too low
Above warranties valid only if all the following are satisfied:
Four-way
37 valve
abnormal
U7
YMGI warrants its products against any unexpected issues occurred to product itself, though designed and
manufactured and expected to work much longer than the warranted period, only if system is installed by
currently licensed HVAC contractor, as follows:
1. The unit was installed by licensed HVAC technician(s) of state certified or licensed contractor(s) only.
2. The unit is installed per national and local codes.
3. The unit is installed following installation instruction coming with YMGI products.
4. The unit is fully checked and tested by installer(s) to make sure installed unit functions as expected.
5. Correct and proper operation of the unit is explained clearly to the owner(s) by installer(s).
6. All fields are filled or checked, signed and dated by both installer(s) and owner(s) on the LIMITED PRODUCT WARRANTY
REGISTRATION CARD on the other side of this page.
7. Registration card must be mailed within 7 calendar days after the original installation is finished or your
NEW home (unit is not checked or used yet) is closed, whichever comes later, by the owner(s) to YMGI Warranty Registration, POB
1559, O,fallon MO 63366.
8. A full copy of warranty registration card must be kept by owner(s) safely along with other documents that come with the product.
No warranty may be valid if any one of above 8 conditions is not fulfilled.
Warranty begins on the date of the original installation or the date of NEW home (unit is not checked
or used yet) is closed, whichever comes later.
As its only responsibility, and your only remedy, YMGI will furnish replacement part, without charge for the
PART(S) and Ground Shipping ONLY, to replace any part found to be defective due to manufacture
workmanship or materials under normal use and maintenance.
Any part replaced pursuant to this warranty is warranted only for the unexpired portion of the warranty term
applying to the original part. These warranties do NOT apply to any other cost associated with the service,
replacement or operation of the product.
For warranty credit, product(s) or part(s) must be reviewed by YMGI’s distributor(s) / contractors
and then YMGI service center(s). In case no distributor(s) or service center(s) available in the area where
unit is installed, owner(s) need to contact YMGI for assistance before further action is to be taken. YMGI is
the only one to approve/honor warranty claiming.
Warranty policy herein DOESN’T cover:
1. Any damage or repairs to properties and person(s) as an incident or consequence of Custorner do it yourself (DIY) installation, faulty or
improper installation, operation, maintenance, or service that ISN’T physically performed by YMGI.
2. Any damage caused by frozen or broken water pipes in the event of equipment failure.
3. Any damage as a result of floods, fires, winds, lightning, accidents, corrosive atmosphere or other conditions beyond the control of
YMGI.
4. Any damage resulted from use of components or accessories not specified, supplied or designated by YMGI.
5. Any damage because of failure to start due to interruption and/or inadequate electrical service.
6. Any products sold or installed outside the United States or Canada.
Any damage due to service performed by third parties, it is the product receivers(s) or owner(s)’s
responsibility to claim such damage resulted from these activities to the responsible party:
1. Transportation, installation and operation.
2. Normal maintenance and service as described in the installation and operating manual, such as cleaning of the coils, filter, cleaning
and/or replacement and lubrication.
YMGI keeps on product improvement and such improvement is purposed to further benefit installers, owners,
users and others. Such improvement or changes, even without notice, including but not limited to
specifications, functions, appearance, sizes, packages or others, of the products are YMGI’s sole right(s).
These improvement or changes will not invalidate the limited warranty stated herein.
For further information about this warranty, contact YMGI Warranty Registration
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P33 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P34 OF 38
LIMITED PRODUCT WARRANTY REGISTRATION CARD
WARRANTY AND TECH. SUPPORT
LIMITED PRODUCT WARRANTY
REGISTRATION CARD
YMGI warrants to the purchaser/owner(s) that YMGI products be free from defects in material and
workmanship under the normal use and maintenance, with the standard Limited Product Warranty
Policies that comes with the unit or sales package.
Product-Indoor Unit Model No.:
Outdoor Unit Model No.:
YMGI IS NOT RESPONSIBLE FOR
Product-Indoor Unit Serial No:
Installed at Address:
Outdoor Unit Serial No.:
Installed on Date (mm/dd/yyyy):
* Damage or repairs required as a consequence Customer do-it-yoursely(DIY) installation and/or any other faulty
installation or improper application.
Street name and number,
City,
State,
Zip code,
Phone No.
Fax No.
Purchased from Distributor Company/Branch Office Located at:
Street name and number,
Indoor Unit
City,
State,
Zip code,
* Damage as a result of floods, winds, fires, lightening, accidents, corrosive atmosphere, or other conditions
beyond the control of YMGI.
Phone No.
Fax No.
Packaged Unit (Please Check Whatever Applicable)
Outdoor Unit
Installed by Licensed HVAC Contractor Company/Branch Office Located at:
Street name and number,
City,
State,
Zip code,
YMGI Packing List No:
Cell Ph.:
Phone No.
Fax No.
* Parts not supplied or designated by YMGI.
* Products installed outside USA or Canada.
* Regular equipment maintenance or field service or field inspection.
Office Ph.:
Purchasing Order No:
CONTACT FOR FIELD SERVICE OR REPAIR
Licensed Installing HVAC Contractor/Technician Checklist:
The following people, in a prioritized sequence, will take care of your request or issue:
• Are you a currently licensed HAVC contractor/technician?
• Did you read through the manual(s) prior to installation?
• Is unit unpacked and checked by the installer for obvious damage?
• Supply power V/Ph/Hz measured at circuit breaker to the outdoor unit: or Indoor unit:
• Incoming power V/Ph/Hz measured at terminal blocks of outdoor unit: or Indoor unit:
• Wire gauge and qty. between circuit breaker/disconnect switch to outdoor unit:
• Wire gauge and qty. between outdoor unit and indoor unit:
• What are installed before HVAC Licensed Technician took over?
• Is field wiring checked following national and local codes?
• Selected the correct electrical components (HVAC circuit breaker or fuse or disconnect switch for the power to the outdoor unit,
connecting wires between circuit breaker/disconnect switch and outdoor unit, wires between outdoor and indoor units)?
• Is indoor coil and/or outdoor coil sealing checked and passed prior to installation?
• Is refrigerant piping length within stated ranges and free from kinks or too much bending?
• Indoor unit away from ceiling and outdoor unit away from the wall, bushes and other obstacles enough and safe clear distance,
required in the manuals?
• Do air intake and discharge grills have enough open area free from any blocking?
• Indoor unit is installed on secured bracket, outdoor unit is placed on level platform, pad, or bracket securely?
• Taped the inter-connecting pipe ends before running through structures, keep from getting dust or other dirties into the pipes to
damage the refrigeration system and void your factory warranty and cost you much more money?
• Is condensate drain pan or pipe checked all right free of any leakage?
• Vacuumed the connecting pipes for leakage check, before back-seating the stopping valves at outdoor condensing unit?
• Refrigerant suction pressures PSI: discharge pressures PSI: Outdoor Temperature F
• Are both indoor fan wheels and outdoor unit fan blades checked for smooth rotation free of abnormal noise?
• Is outdoor unit compressor observed being started, running and stopped in right ways?
• Are all system/unit functions tested and checked to be surely all right, before you fill this card?
• Is system/unit tested to run for at least 30 minutes?
• Did you explain or teach owner(s) or end user(s) clearly the right operation or normal maintenance of the system/unit?
• Does your company provide and will follow installation/service warranty policy?
Print Name of Licensed HVAC Installer:
Signature of Licensed HVAC Installer:
Date: Date:
* 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.
Currently Valid HVAC License No of Installation Technician:
Full Name of Installer Technician:
* Damage or repairs needed as a consequence of any misapplication, abuse, improper servicing, unauthorized
alteration, or improper operation.
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
Print Name of Unit Owner/User:
Signature of Unit Owner/User:
Date:
To Validate the Warranty, Need to Mail the Fully Filled and Signed Card to Warranty Dept.,
YMGI Group, POB 1559, O’Fallon, MO 63366 within 7 Calendar Days after Original Installation,
or New Home (Unit is Not Used Yet) is Closed, Whichever Comes Later.
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P35 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P36 OF 38
USER NOTES AND SERVICE LOG
MEMO
USER NOTES
Put down whatever questions you have or problems you have seen as a unit history:
No.
Date
Questions or Problems
Remarks
SERVICE/MAINTENANCE LOG
Put down whatever questions you have or problems you have seen as a unit history:
No.
Date
Service/Maintenance Conducted
Person/Phone
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P37 OF 38
YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...
P38 OF 38