HISEER WMMS A Products-R410A, WMMS Installation Manual

AIR CONDITIONER AND HEAT PUMP

WALL MOUNT MINI SPLIT TYPE

INSTALLATION MANUAL

SINGLE ZONE

REFRIGERANT R410A

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: Read this manual before installation. Remember to sign on warranty card.
User: Keep this manual for future maintenance and service use.
Servicer: Use this manual for service reference.

HISEER International/YMGI Group

POB 1559, O'Fallon, MO 63366, USA

North America-Tel: [phone] Fax: [phone]

Web Sites: www.hiseerinternational.com or www.ymgigp.com

Email: [e-mail] or [e-mail]

HiSEER is the Trademark and Property of HiSEER International / YMGI Group. Copyright of HiSEER International / YMGI Group.

LITERATURE LIT-WMMS-INSTALLATION-R410A-1TO1A-20090413

Literature Part No.: LIT-WMMS-INSTALLATION-R410A-1TO1A-20090413
For WMMS Series A Products-R410A, Single Zone
Subject to Continuous Engineering Improvement without Prior Notice. Actual Unit/part May Look Different from the Shown in Manual.

Proudly Designed and Manufactured and Distributed and Marketed by HiSEER International/YMGI Group LLC.

No Other Persons or Companies in the World, Including China, USA and Canada, Are Authorized to Use HiSEER Brand. Reporting or Assisting to Stop Any Infringement is to Be Rewarded.

Foreword & Contents

Technical Support

Toll Free Number: 1-866-833-3138 x 704

Email: [e-mail]

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Subject to Continuous Engineering Improvement without Prior Notice.

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Subject to Continuous Engineering Improvement without Prior Notice.

We are not responsible for problems due to bad installation or abnormal usage of this unit:

A bad connection of the connecting pipes.

Folding or deterioration of connecting pipes during installation.

Shocks during the installation due to unprofessional or incautious installation or usage.

An installation or usage not conforming to the regulations or factory recommendations.

Possible costs, services or disasters caused by such bad installation or abnormal usage.

A not very effective operation of the air-conditioner due to a bad vacuum.

A distance between indoor and outdoor units that exceeds the recommended ranges.

The presence of foreign substances left in the air-conditioner during installation.

The under performance due to such bad installation or abnormal usage.

Water leakage problems due to such bad installation of drain hoses.

Refrigerant or oil leakage due to unsuccessful pipe connections.

Problems caused by rough handling unit during bad installation or abnormal usage.

IMPERATIVE

LIABILITIES

Always Keep Your External Unit In A Vertical Position During Handling.

All Units Shall Be Installed by Experienced or Licensed Contractor or Technician.
Customers must NOT Install This Unit by Themselves or Hire Non-Licensed Persons to Do the Job. We
Decline Any Consequences, Including Damage to Unit, People, Properties and Others Resulted from Such
not suggested Behaviour.

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.

Read Manuals Thoroughly before Installation.

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.

Connect All Wiring Securely. Loose Wire or Other Bad Contact May Cause Arc or Overheating and Fire
Hazard.

2

CONTENTS

3~6

8

9

12~14

16

17

18

19

19

20

21

22

IMPORTANT NOTES

7

10~12

15

Air conditioners are units that should have the professional technicians do the installation for you.
This Instruction Guide is the universal-purpose version for the models of split units that you
purchase might be slightly different from the ones described in the Guide, but it does not affect
your proper operations and usage.
Please read carefully the sections corresponding to the specific model you choose, and Keep
the Guide properly so as to facilitate your reference at later time.

SELECTION OF INSTALLATION POSITIONS FOR INDOOR UNIT

SELECTION OF INSTALLATION POSITIONS FOR OUTDOOR UNIT

INSTALLATION FIXTURE OF INDOOR UNIT

INSTALLATION FIXTURE OF OUTDOOR UNIT

PIPELINES CONNECTION FOR WHOLE-UNIT TYPE QUICK COUPLER MODEL

IS THE UNIT INSTALLED CORRECTLY

SELF DIAGNOSIS FUNCTIONS

QUICK CONNECTOR INSTALLATION INSTRUCTION

INSTALLATION GUIDE

FINISH INSTALLATION

USER NOTES AND SERVICE LOG

WARRANTY AND TECH. SUPPORT

LIMITED WARRANTY POLICY

WARRANTY REGISTRATION

These precautions are essential and must be strictly observed.

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 unit in places where there is
exposure to flammable materials or gas leakage.

DO NOT use wire or circuit breakers that do not meet
electrical safety standards. Several circuits cannot
be connected to one breaker.

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 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 unit in cool or dry mode for
prolonged periods where humidity is higher than 80%.

SAFETY WARNINGS

Important Notes

READ THESE SAFETY WARNINGS COMPLETELY PRIOR TO ANY USE.

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 HiSEER.
Failure to adhere to proper Installation, Operation, Maintenance, and Service could result in damage to
equipment, personal property, or physical injury, or even death.

Installation must be performed following the
HiSEER 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. Improper
or Incomplete Installation will void HiSEER provided
warranty and could result in injury or death or
property damage due to fire, electrical shock, leaking,
collapsing. Shall consult the authorized HiSEER
Distributor or Dealer for recommended Contractors/
Installers.

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 HiSEER Instructions and all 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 HiSEER parts in the
installation, maintenance, service, and repair of
HiSEER 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 the unit. 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. Not to cross wiring or tubing among
indoor units of the multiple zone systems. The
electrical wiring and copper tubing from each zone
of indoor unit shall be connected 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.

DO NOT install the indoor unit close to cooking
surfaces or ventilation systems. Poor placement
could inhibit peak performance.

DO NOT blow cold air directly towards people for
extended periods. It may get you a bad cold.

DO NOT use chemical solvents, flammable
insecticides, or abrasive materials. Clean the unit
only with a soft dry cloth or rag.

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 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.

DO NOT operate the unit for prolonged periods
without refreshing ambient air. Opening a door or
window periodically will suffice.

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.

Ground connection

Forbidden

Disconnect the plug

Imperative

Important Notes

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Subject to Continuous Engineering Improvement without Prior Notice.

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Subject to Continuous Engineering Improvement without Prior Notice.

Important Notes

HiSEER LIABILITY DISCLAIMER

HiSEER is NOT and shall NOT be responsible for any problems due to unprofessional, incorrect, incomplete
installation, abuse to the unit, or abnormal usage which would be considered outside normal constraints, and
natural disasters such as fire, flood, earthquake, lighting, or others similar.

HISEER IS NOT AND SHALL NOT 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.

Damage to the units or property or person due to
Unprofessional or Incorrect or Incomplete Mechanical
or Electrical Installation not mentioned above.

Damage to the units or property or person due to any
other Poor Installation not conforming to HiSEER
user regulations, installation manuals and
recommendations.

Damage to the units or property or person due to any
other Improper Usage not conforming to HiSEER
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 HiSEER Recommended Operation
Ambient Conditions including proper temperature and
humidity ranges.

Under performance or damage due to the Undersized
or Oversized Unit Selection, Improper Design,
Incorrect Unit Anticipation, and the sort.

Important Notes

AGAIN, HISEER IS NOT AND SHALL NOT BE RESPONSIBLE FOR:

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 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 HiSEER International.

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 or Mexico.

Damage as a result of floods, winds, fires, lightening,
accidents, corrosive atmosphere, or other conditions
beyond the control of HiSEER International.

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Subject to Continuous Engineering Improvement without Prior Notice.

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Subject to Continuous Engineering Improvement without Prior Notice.