Senville 9,000 BTU 115V Split Type Room Air Conditioner Instruction Manual

9,000 BTU 115V Split Type Room Air Conditioner

Product Information

Product Name: Split-Type Room Air Conditioner

The Split-Type Room Air Conditioner is a cooling appliance
designed to regulate the temperature and humidity of a room. It
consists of both an indoor unit and an outdoor unit, which work
together to provide efficient and comfortable cooling.

Owner’s Manual & Installation Manual

The Owner’s Manual and Installation Manual provide important
information on the specifications, features, care, maintenance,
troubleshooting, and installation of the air conditioning unit. It
is crucial to read and understand these manuals before installing
or operating the product.

Safety Precautions

The safety precautions outlined in the manual are essential to
ensure the proper installation and safe operation of the air
conditioner. Ignoring these instructions can result in serious
damage or injury. The precautions are classified as either a
WARNING or CAUTION to indicate the level of potential harm.

Unit Specifications and Features

The Owner’s Manual provides detailed specifications and features
of the air conditioning unit. These include information such as
cooling capacity, power supply requirements, dimensions, weight,
airflow direction control, timer functions, and remote control
operation.

Care and Maintenance

The Care and Maintenance section of the Owner’s Manual explains
how to properly clean and maintain the air conditioner for optimal
performance and longevity. It includes instructions on cleaning the
filters, checking for blockages, and general maintenance
guidelines.

Troubleshooting

The Troubleshooting section of the Owner’s Manual helps users
identify and resolve common issues that may arise during the
operation of the air conditioner. It provides step-by-step
instructions and solutions for problems such as inadequate cooling,
abnormal noises, and malfunctioning controls.

Installation Manual

The Installation Manual provides detailed instructions for
installing the air conditioning unit. It covers topics such as
required accessories, indoor unit installation, outdoor unit
installation, refrigerant piping connection, air evacuation,
electrical and gas leak checks, and the final test run.

Accessories

The Installation Manual includes a list of accessories that may
be required for the installation of the air conditioner. These
accessories ensure proper functioning and connection of the
unit.

Indoor Unit Installation

The Installation Manual provides step-by-step instructions for
installing the indoor unit of the air conditioner. It covers topics
such as selecting the installation location, mounting the unit on
the wall or ceiling, connecting the necessary pipes and cables, and
securing the unit in place.

Outdoor Unit Installation

The Installation Manual provides detailed instructions for
installing the outdoor unit of the air conditioner. It includes
information on selecting the installation location, mounting the
unit on a stable surface, connecting the refrigerant pipes and
electrical cables, and ensuring proper ventilation for the
unit.

Refrigerant Piping Connection

The Installation Manual provides guidance on connecting the
refrigerant pipes between the indoor and outdoor units. It includes
instructions on measuring and cutting the pipes, applying
insulation, and ensuring proper sealing to prevent refrigerant
leaks.

Air Evacuation

The Installation Manual provides instructions for evacuating the
air from the refrigerant piping system. This process ensures the
removal of any moisture or air bubbles that may affect the
performance and efficiency of the air conditioning unit.

Electrical and Gas Leak Checks

The Installation Manual includes instructions for conducting
electrical and gas leak checks after the installation is complete.
These checks are essential to ensure the safety and proper
functioning of the air conditioner.

Test Run

The Installation Manual provides instructions for conducting a
test run of the air conditioning unit after the installation and
checks are completed. This test run helps verify the proper
functioning of the unit and allows for any adjustments or
fine-tuning if necessary.

Product Usage Instructions

1. Before operating the air conditioning unit, carefully read
and understand the Owner’s Manual and Installation Manual provided
with the product.

2. Ensure that the installation of the indoor and outdoor units
is performed according to the instructions in the Installation
Manual. Improper installation can result in damage or injury.

3. Follow the safety precautions outlined in the manuals to
prevent accidents or harm during installation and operation.

4. Perform regular care and maintenance as instructed in the
Owner’s Manual. This includes cleaning the filters, checking for
blockages, and ensuring proper airflow.

5. If any issues or malfunctions occur, refer to the
Troubleshooting section of the Owner’s Manual for step-by-step
instructions on identifying and resolving common problems.

6. When installing or relocating the air conditioning unit,
follow the instructions in the Installation Manual to ensure proper
positioning, connection of refrigerant pipes and electrical cables,
and ventilation.

7. Conduct air evacuation as instructed in the Installation
Manual to remove any air bubbles or moisture from the refrigerant
piping system.

8. Perform electrical and gas leak checks after installation to
ensure safety and proper functioning of the air conditioner.

9. Finally, conduct a test run of the air conditioning unit as
described in the Installation Manual to verify its proper operation
and make any necessary adjustments.

SPLIT-TYPE ROOM AIR CONDITIONER

Owner’s Manual & Installation Manual

SENL/09CD/220/IX SENL/09CD/220/OX SENL/09CD/IX SENL/09CD/OX SENL/12CD/220/IX SENL/12CD/220/OX SENL/12CD/IX SENL/12CD/OX SENL/18CD/IX SENL/18CD/OX SENL/24CD/IX SENL/24CD/OX SENL/30CD/IX SENL/30CD/OX

IMPORTANT NOTE:
Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

Table of Contents
Safety Precautions …………………………………………………………………….03
Owner’s Manual
Unit Specifications and Features…………………………………………………..07
1. Indoor unit display………………………………………………………………………………………………………….07 2. Operating temperature……………………………………………………………………………………………………09 3. Other features ………………………………………………………………………………………………………………10 4. Setting angle of airflow…………………………………………………………………………………………………..11 5. Manual operation (without Remote)………………………………………………………………………………….11
Care and Maintenance…………………………………………………………….12 Troubleshooting………………………………………………………………………14

Installation Manual
Accessories………………………………………………………………………………17
Installation Summary – Indoor Unit ………………………………………….18
Unit Parts…………………………………………………………………………………19 Indoor Unit Installation…………………………………………………………….20
1. Select installation location………………………………………………………………………………………………..20 2. Attach mounting plate to wall…………………………………………………………………………………………..20 3. Drill wall hole for connective piping……………………………………………………………………………………21 4. Prepare refrigerant piping…………………………………………………………………………………………………22 5. Connect drain hose…………………………………………………………………………………………………………22 6. Connect signal cable……………………………………………………………………………………………………….23 7. Wrap piping and cables…………………………………………………………………………………………………..24 8. Mount indoor unit………………………………………………………………………………………………………….25
Outdoor Unit Installation……………………………………………………………….26
1. Select installation location………………………………………………………………………………………………..26 2. Install drain joint…………………………………………………………………………………………………………….27 3. Anchor outdoor unit……………………………………………………………………………………………………….27 4. Connect signal and power cables………………………………………………………………………………………29
Refrigerant Piping Connection…………………………………………………30
A. Note on Pipe Length……………………………………………………………………………………………………..30 B. Connection Instructions ­Refrigerant Piping………………………………………………………………………30
1. Cut pipe…………………………………………………………………………………………………………………30 2. Remove burrs………………………………………………………………………………………………………….31 3. Flare pipe ends………………………………………………………………………………………………………..31 4. Connect pipes…………………………………………………………………………………………………………31
Air Evacuation………………………………………………………………………..33
1. Evacuation Instructions………………………………………………………………………………………………….33 2. Note on Adding Refrigerant……………………………………………………………………………………………34
Electrical and Gas Leak Checks………………………………………………..35
Test Run…………………………………………………………………………………36

Safety Precautions
Safety

Safety Precautions

Read Safety Precautions Before Operation and Installation
Incorrect installation due to ignoring instructions can cause serious damage or injury. The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION.

WARNING

CAUTION

This symbol indicates the possibility of personnel injury or loss of life.

This symbol indicates the possibility of property damage or serious consequences.

WARNING
This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision EN Standard requirements
.
This appliance is not intended for use by persons(including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance(IEC Standard requirements).

WARNINGS FOR PRODUCT USE
· If an abnormal situation arises (like a burning smell), immediately turn off the unit and disconnect the power. Call your dealer for instructions to avoid electric shock, fire or injury.
· Do not insert fingers, rods or other objects into the air inlet or outlet. This may cause injury, since the fan may be rotating at high speeds.
· Do not use flammable sprays such as hair spray, lacquer or paint near the unit. This may cause fire or combustion.
· Do not operate the air conditioner in places near or around combustible gases. Emitted gas may collect around the unit and cause explosion.
· Do not operate your air conditioner in a wet room such as a bathroom or laundry room. Too much exposure to water can cause electrical components to short circuit.
· Do not expose your body directly to cool air for a prolonged period of time.
· Do not allow children to play with the air conditioner. Children must be supervised around the unit at all times.
· If the air conditioner is used together with burners or other heating devices, thoroughly ventilate
the room to avoid oxygen deficiency. · In certain functional environments, such as kitchens, server rooms, etc., the use of specially
designed air-conditioning units is highly recommended.

Page 3

Safety Precautions

CLEANING AND MAINTENANCE WARNINGS
· Turn off the device and disconnect the power before cleaning. Failure to do so can cause electrical shock.
· Do not clean the air conditioner with excessive amounts of water. · Do not clean the air conditioner with combustible cleaning agents. Combustible cleaning agents
can cause fire or deformation.
CAUTION
· Turn off the air conditioner and disconnect the power if you are not going to use it for a long time. · Turn off and unplug the unit during storms. · Make sure that water condensation can drain unhindered from the unit. · Do not operate the air conditioner with wet hands. This may cause electric shock. · Do not use device for any other purpose than its intended use. · Do not climb onto or place objects on top of the outdoor unit. · Do not allow the air conditioner to operate for long periods of time with doors or windows open,
or if the humidity is very high.
ELECTRICAL WARNINGS · Only use the specified power cord. If the power cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. · Keep power plug clean. Remove any dust or grime that accumulates on or around the plug. Dirty
plugs can cause fire or electric shock. · Do not pull power cord to unplug unit. Hold the plug firmly and pull it from the outlet. Pulling
directly on the cord can damage it, which can lead to fire or electric shock. · Do not modify the length of the power supply cord or use an extension cord to power the unit. · Do not share the electrical outlet with other appliances. Improper or insufficient power supply
can cause fire or electrical shock. · The product must be properly grounded at the time of installation, or electrical shock may occur. · For all electrical work, follow all local and national wiring standards, regulations, and the
Installation Manual. Connect cables tightly, and clamp them securely to prevent external forces from damaging the terminal. Improper electrical connections can overheat and cause fire, and may also cause shock. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units. · All wiring must be properly arranged to ensure that the control board cover can close properly. If the control board cover is not closed properly, it can lead to corrosion and cause the connection points on the terminal to heat up, catch fire, or cause electrical shock. · If connecting power to fixed wiring, an all-pole disconnection device which has at least 3mm clearances in all poles, and have a leakage current that may exceed 10mA, the residual current device(RCD) having a rated residual operating current not exceeding 30mA, and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent protection. The specifications of the fuse are printed on the circuit board ,such as : Indoor unit: T3.15AL/250VAC, T5AL/250VAC, T3.15A/250VAC, T5A/250VAC, etc. Outdoor unit: T20A/250VAC(<=18000Btu/h units)
T30A/250VAC(>18000Btu/h units) NOTE: For the units with R32 or R290 refrigerant , only the blast-proof ceramic fuse can be used.
Page 4

Safety Precautions

WARNINGS FOR PRODUCT INSTALLATION
1. Installation must be performed by an authorized dealer or specialist. Defective installation can cause water leakage, electrical shock, or fire.
2. Installation must be performed according to the installation instructions. Improper installation can cause water leakage, electrical shock, or fire. In North America,installation must be performed in accordance with the requirement of NEC and CEC by authorized personnel only.)
3. Contact an authorized service technician for repair or maintenance of this unit. This appliance shall be installed in accordance with national wiring regulations.
4. Only use the included accessories, parts, and specified parts for installation. Using non-standard parts can cause water leakage, electrical shock, fire, and can cause the unit to fail.
5. Install the unit in a firm location that can support the unit’s weight. If the chosen location cannot support the unit’s weight, or the installation is not done properly, the unit may drop and cause serious injury and damage.
6. Install drainage piping according to the instructions in this manual. Improper drainage may cause water damage to your home and property.
7. For units that have an auxiliary electric heater, do not install the unit within 1 meter (3 feet) of any combustible materials.
8. Do not install the unit in a location that may be exposed to combustible gas leaks. If combustible gas accumulates around the unit, it may cause fire.
9. Do not turn on the power until all work has been completed. 10.When moving or relocating the air conditioner, consult experienced service technicians for
disconnection and reinstallation of the unit. 11.How to install the appliance to its support, please read the information for details in “indoor unit
installation” and “outdoor unit installation” sections .
Note about Fluorinated Gasses(Not applicable to the unit using R290 Refrigerant)
1. This air-conditioning unit contains fluorinated greenhouse gasseess. .FFoorrssppeeccifiifcicininfoformrmaatitoionnoonnththee type of gas and the amount, please refer to the relevant label on the unit itself or the “Owner’s Manual – Product Fiche ” in the packaging of the outdoor unit. (European Union products only).
2. Installation, service, maintenance and repair of this unit must be performed by a certified technician.
3. Product uninstallation and recycling must be performed by a certified technician. 4. For equipment that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO2
equivalent or more, but of less than 50 tonnes of CO2 equivalent, If the system has a leakdetection system installed, it must be checked for leaks at least every 24 months. 5. When the unit is checked for leaks, proper record- keeping of all checks is strongly recommended.
Page 5

Unit Specifications and Features

Unit Specifications and Features

Indoor unit display

NOTE: Different models have different front panel and display window. Not all the indicators describing below are available for the air conditioner you purchased. Please check the indoor display window of the unit you purchased.
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be slightly different. The actual shape shall prevail.

Front Panel

Power Cable (Some Units )

Louver
Functional Filter (On Back of Main Filter – Some Units)

Remote Control

Remote Control Holder (Some Units)

Display window

(A)

(B)

(C)

(D)

”

” when ECO function is activated(some units)

”

” Lights up in different colour according to the operation

mode(some units):

Under COOL and DRY mode, it displays as cool colour.

Under HEAT mode, it displays as warm colour.

” ” when Wireless Control feature is activated(some units)

”

” Displays temperature, operation feature and Error codes:

Display Code Meanings

” ” for 3 seconds when:

· ·

TIMER FRESH

ON is set , SWING,

(if the unit is OFF, TURBO , SILENCE

o”r

SOL”ARrePmVaEinCsOonfewahtuerneTisIMtuErRneOdNoins set

)

” ” for 3 seconds when: · TIMER OFF is set · FRESH , SWING, TURBO , SILENCE or SOLAR PV ECO feature is turned off ” ” when anti-cold air feature is turned on
” ” when defrosting(cooling & heating units)
” ” when unit is self-cleaning
” ” when 8 C heating feature is turned on

Page 6

Unit Specifications and Features

Front Panel

Power Cable (Some Units )

Louver
Functional Filter (On Back of Main Filter – Some Units)

Remote Control

Remote Control Holder (Some Units)

Display window (E)

Display window
The unit has a build-in light sensor to detect the ambient brightness. When the light is turned off, the display will be off after 7 seconds, saving energy and offering you a comfortable sleep.

”

” Displays temperature, operation feature and Error codes:

”

” for 3 seconds when:

· ·

TIMER ON is set(if the unit is OFF, FRESH, SWING, TURBO, or SILENCE

f”eatur”esreismtuarinnsedononwhen

TIMER

ON

is

set

)

”

” for 3 seconds when:

· TIMER OFF is set

· FRESH, SWING, TURBO, or SILENCE features is turned off

”

” when defrosting(for cooling & heating units)

”

” when unit is self-cleaning(some units)

”

” when 8°C(46°F) or 12°C(54°F) heating mode is turned

on(some units)

”

” when fresh feature is turned on(some units)

”

” when ECO feature is activated(some units)

”

” when wireless control feature is activated(some units)

Display Code Meanings

In Fan mode, the unit will display the room temperature.
In other modes, the unit will display your temperature setting. Press the LED button on the remote control will turn off the display screen, press the LED button again during 15 seconds will display the room temperature, if press it again after 15 seconds, it will turn on the display screen.

Page 7

Unit Specifications and Features

Operating temperature
When your air conditioner is used outside of the following temperature ranges, certain safety protection features may activate and cause the unit to disable.

Inverter Split Type

COOL mode

Room Temperature

17°C – 32°C (62°F – 90°F)

HEAT mode
0°C – 30°C (32°F – 86°F)

DRY mode
10°C – 32°C (50°F – 90°F)

0°C – 50°C (32°F – 122°F)

Outdoor Temperature

-15°C – 50°C (5°F – 122°F)
(For models with low temp. cooling systems.)

-15°C – 30°C (5°F – 86°F)

0°C – 50°C (32°F – 122°F)

FOR OUTDOOR UNITS WITH AUXILIARY ELECTRIC HEATER
When outside temperature is below 0°C (32°F ), we strongly recommend keeping the unit plugged in at all time to ensure smooth ongoing performance.

0°C – 52°C (32°F – 126°F)
(For special tropical models)

0°C – 52°C (32°F – 126°F)
(For special tropical models)

Fixed-speed Type

COOL mode

Room Temperature

17°C-32°C (62°F-90°F)

18°C-43°C (64°F-109°F)

Outdoor Temperature

-7°C-43°C (19°F-109°F) (For models with low-temp cooling systems)

18°C-52°C (64°F-126°F)

(For special tropical models)

HEAT mode 0°C-30°C (32°F-86°F)
-7°C-24°C (19°F-75°F)

DRY mode
10°C-32°C (50°F-90°F) 11°C-43°C (52°F-109°F) 18°C-43°C (64°F-109°F) 18°C-52°C (64°F-126°F) (For special tropical models)

NOTE: Room relative humidity less than 80%. If the air conditioner operates in excess of this figure, the surface of the air conditioner may attract condensation. Please sets the vertical air flow louver to its maximum angle (vertically to the floor), and set HIGH fan mode.

To further optimize the performance of your unit, do the following: · Keep doors and windows closed. · Limit energy usage by using TIMER ON and TIMER OFF functions. · Do not block air inlets or outlets. · Regularly inspect and clean air filters.

Page 8

Unit Specifications and Features

A guide on using the infrared remote is not included in this literature package. Not all the functions are available for the air conditioner, please check the indoor display and remote control of the unit you purchased.
Other Features
· Auto-Restart(some units) If the unit loses power, it will automatically restart with the prior settings once power has been restored.
· Anti-mildew (some units) When turning off the unit from COOL, AUTO (COOL), or DRY modes, the air conditioner will continue operate at very low power to dry up condensed water and prevent mildew growth.
· Wireless Control (some units) Wireless control allows you to control your air conditioner using your mobile phone and a wireless connection. For the USB device access, replacement, maintenance operations must be carried out by professional staff.
· Louver Angle Memory(some units) When turning on your unit, the louver will automatically resume its former angle.
· Refrigerant Leakage Detection (some units)
The indoor unit will automatically display “EC” or “EL0C”or flash LEDS (model dependent ) when it detects refrigerant leakage.

· Sleep Operation The SLEEP function is used to decrease energy use while you sleep (and don’t need the same temperature settings to stay comfortable). This function can only be activated via remote control. And the Sleep function is not available in FAN or DRY mode.
Press the SLEEP button when you are ready to go to sleep. When in COOL mode, the unit will increase the temperature by 1°C (2°F) after 1 hour, and will increase an additional 1°C (2°F) after another hour. When in HEAT mode, the unit will decrease the temperature by 1°C (2°F) after 1 hour, and will decrease an additional 1°C (2°F) after another hour.
The sleep feature will stop after 8 hours and the system will keep running with final situation.

SLEEP Operation

Set temperature

Cool mode(+1 C/2 F) per hour for the first two hours

1hr

1hr

Heat mode( -1 C/2 F) per hour for the first two hours

Keep running

Saving energy during sleep

Page 9

Unit Specifications and Features

· Setting Angle of Air Flow
Setting vertical angle of air flow
While the unit is on, use the SWING/ DIRECT button on remote control to set the direction (vertical angle) of airflow. Please refer to the Remote Control Manual for details.
NOTE ON LOUVER ANGLES When using COOL or DRY mode, do not set louver at too vertical an angle for long periods of time. This can cause water to condense on the louver blade, which will drop on your floor or furnishings. When using COOL or HEAT mode, setting the louver at too vertical an angle can reduce the performance of the unit due to restricted air flow.
Setting horizontal angle of air flow
The horizontal angle of the airflow must be set manually. Grip the deflector rod (See Fig.B) and manually adjust it to your preferred direction. For some units, the horizontal angle of the airflow can be set by remote control. please refer to the Remote Control Manual.
Manual Operation(without remote)
CAUTION
The manual button is intended for testing purposes and emergency operation only. Please do not use this function unless the remote control is lost and it is absolutely necessary. To restore regular operation, use the remote control to activate the unit. Unit must be turned off before manual operation.
To operate your unit manually: 1. Open the front panel of the indoor unit. 2. Locate the MANUAL CONTROL button on
the right-hand side of the unit. 3. Press the MANUAL CONTROL button one
time to activate FORCED AUTO mode. 4. Press the MANUAL CONTROL button again
to activate FORCED COOLING mode. 5. Press the MANUAL CONTROL button a third
time to turn the unit off. 6. Close the front panel.

Range

NOTE: Do not move louver by hand. This will

cause the louver to become out of sync. If this

occurs, turn off the unit and unplug it for a few

seconds, then restart the unit. This will reset the

louver.

Fig. A

CAUTION
Do not put your fingers in or near the blower and suction side of the unit. The high-speed fan inside the unit may cause injury.

Deflector rod

Fig. B

Manual control button

Page 10

Care and Maintenance

Care and Maintenance

Cleaning Your Indoor Unit
BEFORE CLEANING OR MAINTENANCE
ALWAYS TURN OFF YOUR AIR CONDITIONER SYSTEM AND DISCONNECT ITS POWER SUPPLY BEFORE CLEANING OR MAINTENANCE.
CAUTION

6. Rinse the filter with fresh water, then shake off excess water.
7. Dry it in a cool, dry place, and refrain from exposing it to direct sunlight.
8. When dry, re-clip the air freshening filter to the larger filter, then slide it back into the indoor unit.
9. Close the front panel of the indoor unit.

Only use a soft, dry cloth to wipe the unit clean. If the unit is especially dirty, you can use a cloth soaked in warm water to wipe it clean.
· Do not use chemicals or chemically treated cloths to clean the unit
· Do not use benzene, paint thinner, polishing powder or other solvents to clean the unit. They can cause the plastic surface to crack or deform.
· Do not use water hotter than 40°C (104°F) to clean the front panel. This can cause the panel to deform or become discolored.

Filter Tabs

Cleaning Your Air Filter

A clogged air conditioner can reduce the cooling efficiency of your unit, and can also be bad for your health. Make sure to clean the filter once every two weeks. 1. Lift the front panel of the indoor unit.
2. Grip the tab on the end of the filter, lift it up,then pull it towards yourself.
3. Now pull the filter out.
4. If your filter has a small air freshening filter, unclip it from the larger filter. Clean this air freshening filter with a hand-held vacuum.
5. Clean the large air filter with warm, soapy water. Be sure to use a mild detergent.

Remove air freshening Gilter from back of larger filter (some units)
CAUTION Do not touch air freshening (Plasma) filter for at least 10 minutes after turning off the unit.

Page 12

Care and Maintenance

CAUTION
· Before changing the filter or cleaning, turn off the unit and disconnect its power supply.
· When removing filter, do not touch metal parts in the unit. The sharp metal edges can cut you.
· Do not use water to clean the inside of the indoor unit. This can destroy insulation and cause electrical shock.
· Do not expose filter to direct sunlight when drying. This can shrink the filter.
Air Filter Reminders (Optional)
Air Filter Cleaning Reminder
After 240 hours of use, the display window on the indoor unit will flash “CL.” This is a reminder to clean your filter. After 15 seconds, the unit will revert to its previous display.
To reset the reminder, press the LED button on your remote control 4 times, or press the MANUAL CONTROL button 3 times. If you don’t reset the reminder, the “CL” indicator will flash again when you restart the unit.
Air Filter Replacement Reminder
After 2,880 hours of use, the display window on the indoor unit will flash “nF.” This is a reminder to replace your filter. After 15 seconds, the unit will revert to its previous display.
To reset the reminder, press the LED button on your remote control 4 times, or press the MANUAL CONTROL button 3 times. If you don’t reset the reminder, the “nF” indicator will flash again when you restart the unit.

Maintenance ­ Long Periods of Non-Use
If you plan not to use your air conditioner for an extended period of time, do the following:

Clean all filters

Turn on FAN function until unit dries out completely

Turn off the unit and disconnect the power

Remove batteries from remote control

Maintenance ­ Pre-Season Inspection
After long periods of non-use, or before periods of frequent use, do the following:

Check for damaged wires

Clean all filters

CAUTION
· Any maintenance and cleaning of outdoor unit should be performed by an authorized dealer or a licensed service provider.
· Any unit repairs should be performed by an authorized dealer or a licensed service provider.

Check for leaks

Replace batteries

Make sure nothing is blocking all air inlets and outlets

Page 13

Troubleshooting

Troubleshooting

SAFETY PRECAUTIONS
If ANY of the following conditions occurs, turn off your unit immediately! · The power cord is damaged or abnormally warm · You smell a burning odor · The unit emits loud or abnormal sounds · A power fuse blows or the circuit breaker frequently trips · Water or other objects fall into or out of the unit
DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED SERVICE PROVIDER IMMEDIATELY!

Common Issues

The following problems are not a malfunction and in most situations will not require repairs.

Issue
Unit does not turn on when pressing ON/OFF button

Possible Causes
The Unit has a 3-minute protection feature that prevents the unit from overloading. The unit cannot be restarted within three minutes of being turned off.

The unit changes from COOL/HEAT mode to FAN mode

The unit may change its setting to prevent frost from forming on the unit. Once the temperature increases, the unit will start operating in the previously selected mode again.

The indoor unit emits white mist

The set temperature has been reached, at which point the unit turns off the compressor. The unit will continue operating when the temperature fluctuates again.
In humid regions, a large temperature difference between the room’s air and the conditioned air can cause white mist.

Both the indoor and outdoor units emit white mist

When the unit restarts in HEAT mode after defrosting, white mist may be emitted due to moisture generated from the defrosting process.

The indoor unit makes noises

A rushing air sound may occur when the louver resets its position.
A squeaking sound may occur after running the unit in HEAT mode due to expansion and contraction of the unit’s plastic parts.

Both the indoor unit and outdoor unit make noises

Low hissing sound during operation: This is normal and is caused by refrigerant gas flowing through both indoor and outdoor units.
Low hissing sound when the system starts, has just stopped running, or is defrosting: This noise is normal and is caused by the refrigerant gas stopping or changing direction.
Squeaking sound: Normal expansion and contraction of plastic and metal parts caused by temperature changes during operation can cause squeaking noises.

Page 14

Troubleshooting

Issue

Possible Causes

The outdoor unit makes noises

The unit will make different sounds based on its current operating mode.

Dust is emitted from either the indoor or outdoor unit

The unit may accumulate dust during extended periods of non-use, which will be emitted when the unit is turned on. This can be mitigated by covering the unit during long periods of inactivity.

The unit emits a bad odor

The unit may absorb odors from the environment (such as furniture, cooking, cigarettes, etc.) which will be emitted during operations.
The unit’s filters have become moldy and should be cleaned.

The fan of the outdoor unit does not operate During operation, the fan speed is controlled to optimize product operation.

Operation is erratic, unpredictable, or unit is unresponsive

Interference from cell phone towers and remote boosters may cause the unit to malfunction.
In this case, try the following: · Disconnect the power, then reconnect. · Press ON/OFF button on remote control to restart operation.

NOTE: If problem persists, contact a local dealer or your nearest customer service center. Provide them with a detailed description of the unit malfunction as well as your model number.

Troubleshooting

When troubles occur, please check the following points before contacting a repair company.

Problem

Possible Causes

Solution

Temperature setting may be higher than ambient room temperature

Lower the temperature setting

The heat exchanger on the indoor Clean the affected heat exchanger or outdoor unit is dirty

Poor Cooling Performance

The air filter is dirty
The air inlet or outlet of either unit is blocked Doors and windows are open
Excessive heat is generated by sunlight
Too many sources of heat in the room (people, computers, electronics, etc.) Low refrigerant due to leak or long-term use SILENCE function is activated (optional function)

Remove the filter and clean it according to instructions
Turn the unit off, remove the obstruction and turn it back on Make sure that all doors and windows are closed while operating the unit Close windows and curtains during periods of high heat or bright sunshine
Reduce amount of heat sources
Check for leaks, re-seal if necessary and top off refrigerant SILENCE function can lower product performance by reducing operating frequency. Turn off SILENCE function.

Page 15

Troubleshooting

Problem
The unit is not working
The unit starts and stops frequently
Poor heating performance
Indicator lamps continue flashing Error code appears and begins with the letters as the following in the window display of indoor unit: · E(x), P(x), F(x) · EH(xx), EL(xx), EC(xx) · PH(xx), PL(xx), PC(xx)

Possible Causes Power failure

Solution Wait for the power to be restored

The power is turned off

Turn on the power

The fuse is burned out

Replace the fuse

Remote control batteries are dead Replace batteries

The Unit’s 3-minute protection has been activated
Timer is activated

Wait three minutes after restarting the unit
Turn timer off

There’s too much or too little refrigerant in the system

Check for leaks and recharge the system with refrigerant.

Incompressible gas or moisture Evacuate and recharge the system

has entered the system.

with refrigerant

The compressor is broken

Replace the compressor

The voltage is too high or too low

Install a manostat to regulate the voltage

The outdoor temperature is extremely low

Use auxiliary heating device

Cold air is entering through doors and windows
Low refrigerant due to leak or long-term use

Make sure that all doors and windows are closed during use
Check for leaks, re-seal if necessary and top off refrigerant

The unit may stop operation or continue to run safely. If the indicator lamps continue to flash or error codes appear, wait for about 10 minutes. The problem may resolve itself. If not, disconnect the power, then connect it again. Turn the unit on. If the problem persists, disconnect the power and contact your nearest customer service center.

NOTE: If your problem persists after performing the checks and diagnostics above, turn off your unit immediately and contact an authorized service center.

Page 16

Accessories

The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. The items are not included with the air conditioner must be purchased separately.

Name of Accessories Q’ty(pc)

Shape

Name of Accessories Q’ty(pc)

Shape

Manual

2-3

Remote controller

1

Drain joint

(for cooling &

1

heating models)

Seal

(for cooling &

1

heating models)

Mounting plate

1

Anchor
Mounting plate fixing screw

5~8 (depending on models)
5~8 (depending on models)

Battery

2

Remote controller

holder(optional)

1

Fixing screw for

remote controller

2

holder(optional)

Small Filter
(Need to be installed on the back of main air filter by the authorized technician while installing the machine)

1~2 (depending on models)

Name
Connecting pipe assembly
Magnetic ring and belt (if supplied ,please refer to the wiring diagram to install it on the connective cable. )

Shape
Liquid side Gas side

6.35( 1/4i n) 9.52( 3/8in) 9.52( 3/8in) 12.7( 1/2in) 16( 5/8in)
19( 3/4in)

1 2 3

Quantity(PC)
Parts you must purc hase separately. Consult the dealer about the proper pipe size of the unit you purchased.

Pass the belt through the hole of the Magnetic ring to fix it on the cable

Varies by model

Accessories

Page 17

Installation Summary – Indoor Unit

1

15cm (5.9in)

2

3

12cm (4.75in)
2.3m (90.55in)

12cm (4.75in)

Select Installation Location
44

Determine Wall Hole Position

5

6

Attach Mounting Plate

Installation Summary -Indoor Unit

Drill Wall Hole
7

Connect Piping
8

Connect Wiring (not applicable for some locations in the US )

Prepare Drain Hose
Page 18

Wrap Piping and Cable (not applicable for some locations in the US )

9

8 STEP

Mount Indoor Unit

Unit Parts
NOTE: The installation must be performed in accordance with the requirement of local and national standards. The installation may be slightly different in different areas.

1
2 4
5

3
6 7 8
9

2 4
5
10

1 Air-break switch 3
6 7 8

Unit Parts

11

11

c1
1 Wall Mounting Plate 2 Front Panel 3 Power Cable (Some Units) 4 Louver

c2

5

Functional Filter (On Back of Main Filter – Some Units)

6 Drainage Pipe

7 Signal Cable 8 Refrigerant Piping

9 Remote Controller
10 Remote controller Holder (Some Units)
11 Outdoor Unit Power Cable (Some Units)

NOTE ON ILLUSTRATIONS
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be slightly different. The actual shape shall prevail.

Page 19

Indoor Unit Installation

Installation Instructions ­ Indoor unit
PRIOR TO INSTALLATION
Before installing the indoor unit, refer to the label on the product box to make sure that the model number of the indoor unit matches the model number of the outdoor unit.
Step 1: Select installation location Before installing the indoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit.
Proper installation locations meet the following standards:
Good air circulation Convenient drainage Noise from the unit will not disturb other
people Firm and solid–the location will not vibrate Strong enough to support the weight of the
unit A location at least one meter from all other
electrical devices (e.g., TV, radio, computer)
DO NOT install unit in the following locations:
Near any source of heat, steam, or combustible gas
Near flammable items such as curtains or clothing
Near any obstacle that might block air circulation
Near the doorway
In a location subject to direct sunlight

NOTE ABOUT WALL HOLE:
If there is no fixed refrigerant piping:
While choosing a location, be aware that you should leave ample room for a wall hole (see Drill wall hole for connective piping step) for the signal cable and refrigerant piping that connect the indoor and outdoor units. The default position for all piping is the right side of the indoor unit (while facing the unit). However, the unit can accommodate piping to both the left and right.
Refer to the following diagram to ensure proper distance from walls and ceiling:
15cm (5.9in) or more

12cm (4.75in) or more

12cm (4.75in) or more

2.3m (90.55in) or more
Step 2: Attach mounting plate to wall The mounting plate is the device on which you will mount the indoor unit.
Remove the screw that attaches the mounting plate to the back of the indoor unit.

Screw
Secure the mounting plate to the wall with the screws provided. Make sure that mounting plate is flat against the wall.
NOTE FOR CONCRETE OR BRICK WALLS: If the wall is made of brick, concrete, or similar material, drill 5mm-diameter (0.2in-diameter) holes in the wall and insert the sleeve anchors provided. Then secure the mounting plate to the wall by tightening the screws directly into the clip anchors.

Indoor Unit Installation

Page 20

Step 3: Drill wall hole for connective piping
1. Determine the location of the wall hole based on the position of the mounting plate. Refer to Mounting Plate Dimensions.
2. Using a 65mm (2.5in) or 90mm(3.54in) (depending on models )core drill, drill a hole in the wall. Make sure that the hole is drilled at a slight downward angle, so that the outdoor end of the hole is lower than the indoor end by about 5mm to 7mm (0.2-0.275in). This will ensure proper water drainage.
3. Place the protective wall cuff in the hole. This protects the edges of the hole and will help seal it when you finish the installation process.

Type A
101mm (4in)

Type B
348.4mm (13.7in) 179mm (7.05in) 136mm (5.35in)

37mm (1.45in)

290mm (11.4in) 49mm (1.95in)

Left rear wall hole 65mm (2.5in)

722mm (28.45in)
Model A

49mm (1.95in)

Indoor unit outline
Right rear wall hole 65mm (2.5in)

228mm (8.98in)

401mm (15.78in) 229mm (9.01in) 126mm (4.96in)

58mm (2.28in) 42mm (1.65in)

297mm (11.7in) 47mm (1.85in)

CAUTION
When drilling the wall hole, make sure to avoid wires, plumbing, and other sensitive components.

Left rear wall hole 65mm (2.5in)

802mm (31.6in)
Model B

Indoor unit outline
Right rear wall hole 65mm (2.5in)

Wall

Indoor

Outdoor

138mm (5.45in)

517.4mm (20.37in) 144mm (5.65in)
Indoor unit outline

40mm (1.55in) 58mm (2.3in)

319mm (12.55in) 57mm (2.25in)

Left rear wall hole 65mm (2.5in) 34mm (1.35in)

965mm (38in)
Model C

Right rear wall hole 65mm (2.5in)

5-7mm (0.2-0.275in)

MOUNTING PLATE DIMENSIONS Different models have different mounting plates. For the different customization requirements, the shape of the mounting plate may be slightly different. But the installation dimensions are the same for the same size of indoor unit. See Type A and Type B for example:
Correct orientation of Mounting Plate

54mm (2.1in)

221mm (8.7in) 79mm(3.1in)

578mm (22.8in)

298mm (11.7in)

149mm (5.9in)

54mm (2.1in)
Indoor unit outline

336mm (13.2in) 49mm (1.9in)

Left rear wall hole 65mm (2.5in) 138mm (5.4in)

49mm (1.9in)

1080mm (42.5in) 149mm (5.9in)

Right rear wall hole 65mm (2.5in)

Model D

643.6mm (25.3in)

389mm (15.3in)

257mm (10.1in)

172mm (6.8in)

332mm (13.05in)

Indoor unit outline

362mm (14.25in)

Left rear wall hole 90mm (3.54in)

52mm (2.05in)
1259mm (49.55in)
Model E

52mm (2.05in)
Right rear wall hole 90mm (3.54in)

NOTE: When the gas side connective pipe is
16mm(5/8in) or more, the wall hole should
be 90mm(3.54in).

Indoor Unit Installation

Page 21

Step 4: Prepare refrigerant piping
The refrigerant piping is inside an insulating sleeve attached to the back of the unit. You must prepare the piping before passing it through the hole in the wall. 1. Based on the position of the wall hole relative
to the mounting plate, choose the side from which the piping will exit the unit. 2. If the wall hole is behind the unit, keep the knock-out panel in place. If the wall hole is to the side of the indoor unit, remove the plastic knock-out panel from that side of the unit. This will create a slot through which your piping can exit the unit. Use needle nose pliers if the plastic panel is too difficult to remove by hand. 3. Groove has been made in the knock-out panel in order to cut it conveniently. The size of the slot is determined by the diameter of piping.
Knock-out Panel
4. If existing connective piping is already embedded in the wall, proceed directly to the Connect Drain Hose step. If there is no embedded piping, connect the indoor unit’s refrigerant piping to the connective piping that will join the indoor and outdoor units. Refer to the Refrigerant Piping Connection section of this manual for detailed instructions.
NOTE ON PIPING ANGLE Refrigerant piping can exit the indoor unit from four different angles:Left-hand side,Right-hand side, Left rear, Right rear.

Step 5:Connect drain hose
By default, the drain hose is attached to the lefthand side of unit (when you’re facing the back of the unit). However, it can also be attached to the right-hand side. To ensure proper drainage, attach the drain hose on the same side that your refrigerant piping exits the unit. Attach drain hose extension (purchased separately) to the end of drain hose.
Wrap the connection point firmly with Teflon tape to ensure a good seal and to prevent leaks.
For the portion of the drain hose that will remain indoors, wrap it with foam pipe insulation to prevent condensation. Remove the air filter and pour a small amount of water into the drain pan to make sure that water flows from the unit smoothly.
NOTE ON DRAIN HOSE PLACEMENT
Make sure to arrange the drain hose according to the follo.wing figures.

CORRECT
Make sure there are no kinks or dent in drain hose to ensure proper drainage.

NOT CORRECT
Kinks in the drain hose will create water traps.

Indoor Unit Installation

CAUTION
Be extremely careful not to dent or damage the piping while bending them away from the unit. Any dents in the piping will affect the unit’s performance.
Page 22

NOT CORRECT
Kinks in the drain hose will create water traps.

NOT CORRECT Do not place the end of the drain hose in water or in containers that collect water. This will prevent proper drainage.

PLUG THE UNUSED DRAIN HOLE

To prevent unwanted leaks you must plug the unused drain hole with the rubber plug provided.

BEFORE PERFORMING ANY
ELECTRICAL WORK, READ THESE
REGULATIONS
1. All wiring must comply with local and national electrical codes, regulations and must be installed by a licensed electrician.
2. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units.
3. If there is a serious safety issue with the power supply, stop work immediately. Explain your reasoning to the client, and refuse to install the unit until the safety issue is properly resolved.
4. Power voltage should be within 90-110% of rated voltage. Insufficient power supply can cause malfunction, electrical shock, or fire.
5. If connecting power to fixed wiring, install a surge protector and main power switch with a capacity of 1.5 times the maximum current of the unit.
6. If connecting power to fixed wiring, a switch or circuit breaker that disconnects all poles and has a contact separation of at least 1/8in (3mm) must be incorporated in the fixed wiring. The qualified technician must use an approved circuit breaker or switch.
7. Only connect the unit to an individual branch
circuit outlet. Do not connect another
appliance to that outlet.
8. Make sure to properly ground the air conditioner.
9. Every wire must be firmly connected. Loose
wiring can cause the terminal to overheat,
resulting in product malfunction and possible fire.
10.Do not let wires touch or rest against refrigerant
tubing, the compressor, or any moving parts
within the unit.
11. If the unit has an auxiliary electric heater, it must
be installed at least 1 meter (40in) away from
any combustible materials.
12.To avoid getting an electric shock, never touch
the electrical components soon after the power
supply has been turned off. After turning off
the power, always wait 10 minutes or more
before you touch the electrical components.

WARNING

BEFORE PERFORMING ANY ELECTRICAL OR WIRING WORK, TURN OFF THE MAIN POWER TO THE SYSTEM.

Step 6: Connect signal cable
The signal cable enables communication between the indoor and outdoor units. You must first choose the right cable size before preparing it for connection.
Cable Types · Indoor Power Cable (if applicable):
H05VV-F or H05V2V2-F · Outdoor Power Cable: H07RN-F · Signal Cable: H07RN-F

Minimum Cross-Sectional Area of Power and Signal Cables (For reference)

Rated Current of Appliance (A)

3 and 6 > 6 and 10 > 10 and 16 > 16 and 25 > 25 and 32 > 32 and 40

Nominal Cross-Sectional Area (mm²)
0.75 1 1.5 2.5 4 6

CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal cable, fuse, and switch needed is determined by the maximum current of the unit. The maximum current is indicated on the nameplate located on the side panel of the unit. Refer to this nameplate to choose the right cable, fuse, or switch.

Indoor Unit Installation

Page 23

1. Open front panel of the indoor unit. 2. Using a screwdriver, open the wire box cover
on the right side of the unit. This will reveal the terminal block.
Terminal block Wire cover
Screw Cable clamp
WARNING
ALL WIRING MUST BE PERFORMED STRICTLY IN ACCORDANCE WITH THE WIRING DIAGRAM LOCATED ON THE BACK OF THE INDOOR UNIT ‘S FRONT PANEL .
3. Unscrew the cable clamp below the terminal block and place it to the side.
4. Facing the back of the unit, remove the plastic panel on the bottom left- hand side.
5. Feed the signal wire through this slot, from the back of the unit to the front.
6. Facing the front of the unit, connect the wire according to the indoor unit’s wiring diagram, connect the u-lug and firmly screw each wire to its corresponding terminal.
CAUTION
DO NOT MIX UP LIVE AND NULL WIRES This is dangerous, and can cause the air conditioning unit to malfunction. 7. After checking to make sure every connection is secure, use the cable clamp to fasten the signal cable to the unit. Screw the cable clamp down tightly. 8. Replace the wire cover on the front of the unit, and the plastic panel on the back.

NOTE ABOUT WIRING
THE WIRING CONNECTION PROCESS MAY DIFFER SLIGHTLY BETWEEN UNITS AND REGIONS.
Step 7: Wrappiping and cables Before passing the piping, drain hose, and the signal cable through the wall hole, you must bundle them together to save space, protect them, and insulate them(Not applicable in North America). 1. Bundle the drain hose, refrigerant pipes, and
signal cable as shown below:
Indoor Unit
Space behind unit
Refrigerant piping Insulation tape
Signal wire Drain hose
DRAIN HOSE MUST BE ON BOTTOM Make sure that the drain hose is at the bottom of the bundle. Putting the drain hose at the top of the bundle can cause the drain pan to overflow, which can lead to fire or water damage.
DO NOT INTERTWINE SIGNAL CABLE WITH OTHER WIRES While bundling these items together, do not intertwine or cross the signal cable with any other wiring. 2. Using adhesive vinyl tape, attach the drain
hose to the underside of the refrigerant pipes. 3. Using insulation tape, wrap the signal wire,
refrigerant pipes, and drain hose tightly together. Double-check that all items are bundled.
DO NOT WRAP ENDS OF PIPING When wrapping the bundle, keep the ends of the piping unwrapped. You need to access them to test for leaks at the end of the installation process (refer to Electrical Checks and Leak Checks section of this manual).

Indoor Unit Installation

Page 24

Step 8: Mount indoor unit
If you installed new connective piping to the outdoor unit,do the following:
1. If you have already passed the refrigerant piping through the hole in the wall, proceed to Step 4.
2. Otherwise, double-check that the ends of the refrigerant pipes are sealed to prevent dirt or foreign materials from entering the pipes.
3. Slowly pass the wrapped bundle of refrigerant pipes, drain hose, and signal wire through the hole in the wall.
4. Hook the top of the indoor unit on the upper hook of the mounting plate.
5. Check that unit is hooked firmly on mounting by applying slight pressure to the left and right-hand sides of the unit. The unit should not jiggle or shift.
6. Using even pressure, push down on the bottom half of the unit. Keep pushing down until the unit snaps onto the hooks along the bottom of the mounting plate.
7. Again, check that the unit is firmly mounted by applying slight pressure to the left and the right-hand sides of the unit.
If refrigerant piping is already embedded in the wall, do the following:
1. Hook the top of the indoor unit on the upper hook of the mounting plate.
2. Use a bracket or wedge to prop up the unit, giving you enough room to connect the refrigerant piping, signal cable, and drain hose.

3. Connect drain hose and refrigerant piping (refer to Refrigerant Piping Connection section of this manual for instructions).
4. Keep pipe connection point exposed to perform the leak test (refer to Electrical Checks and Leak Checks section of this manual).
5. After the leak test, wrap the connection point with insulation tape.
6. Remove the bracket or wedge that is propping up the unit.
7. Using even pressure, push down on the bottom half of the unit. Keep pushing down until the unit snaps onto the hooks along the bottom of the mounting plate.

UNIT IS ADJUSTABLE
Keep in mind that the hooks on the mounting plate are smaller than the holes on the back of the unit. If you find that you don’t have ample room to connect embedded pipes to the indoor unit, the unit can be adjusted left or right by about 30-50mm (1.25-1.95in), depending on the model.

30-50mm (1.2-1.95in)

30-50mm (1.2-1.95in)

Move to left or right

Indoor Unit Installation

Page 25

Installation
Outdoor Unit Installation

Outdoor Unit Installation

Install the unit by following local codes and regulations , there may be differ slightly between different regions.

60cm (24in) above

30ocnmle(1f2t in) 200cimn f(7ro9nint)

3f0rocmm (b1a2cikn)wall 60ocnmri(g2h4tin)

Installation Instructions ­ Outdoor unit
Step 1: Select installation location Before installing the outdoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit.
Proper installation locations meet the following standards:
Meets all spatial requirements shown in Installation Space Requirements above.
Good air circulation and ventilation
Firm and solid–the location can support the unit and will not vibrate
Noise from the unit will not disturb others
Protected from prolonged periods of direct sunlight or rain
Where snowfall is anticipated, raise the unit above the base pad to prevent ice buildup and coil damage. Mount the unit high enough to be above the average accumulated area snowfall. The minimum height must be 18 inches

DO NOT install unit in the following locations:
Near an obstacle that will block air inlets and outlets Near a public street, crowded areas, or where noise from the unit will disturb others Near animals or plants that will be harmed by hot air discharge Near any source of combustible gas In a location that is exposed to large amounts of dust In a location exposed to a excessive amounts of salty air
SPECIAL CONSIDERATIONS FOR EXTREME WEATHER
If the unit is exposed to heavy wind:
Install unit so that air outlet fan is at a 90° angle to the direction of the wind. If needed, build a barrier in front of the unit to protect it from extremely heavy winds. See Figures below.
Strong wind

Strong wind

Wind Baffle

Strong wind

If the unit is frequently exposed to heavy rain or snow:
Build a shelter above the unit to protect it from the rain or snow. Be careful not to obstruct air flow around the unit.
If the unit is frequently exposed to salty air (seaside):
Use outdoor unit that is specially designed to resist corrosion.

Page 26

Step 2: Install drain joint(Heat pump unit only)
Before bolting the outdoor unit in place, you must install the drain joint at the bottom of the unit. Note that there are two different types of drain joints depending on the type of outdoor unit.
If the drain joint comes with a rubber seal (see Fig. A ), do the following:
1. Fit the rubber seal on the end of the drain joint that will connect to the outdoor unit.
2. Insert the drain joint into the hole in the base pan of the unit.
3. Rotate the drain joint 90° until it clicks in place facing the front of the unit.
4. Connect a drain hose extension (not included) to the drain joint to redirect water from the unit during heating mode.
If the drain joint doesn’t come with a rubber seal (see Fig. B ), do the following:
1. Insert the drain joint into the hole in the base pan of the unit. The drain joint will click in place.
2. Connect a drain hose extension (not included) to the drain joint to redirect water from the unit during heating mode.

D B

Step 3: Anchor outdoor unit The outdoor unit can be anchored to the ground or to a wall-mounted bracket with bolt(M10). Prepare the installation base of the unit according to the dimensions below.
UNIT MOUNTING DIMENSIONS The following is a list of different outdoor unit sizes and the distance between their mounting feet. Prepare the installation base of the unit according to the dimensions below.
A
Air inlet
Air inlet
Air outlet

Base pan hole of outdoor unit Seal
Seal

Drain joint

(A)

(B)

IN COLD CLIMATES
In cold climates, make sure that the drain hose is as vertical as possible to ensure swift water drainage. If water drains too slowly, it can freeze in the hose and flood the unit.

H W

Outdoor Unit Installation

Page 27

Outdoor Unit Dimensions (mm) W x H x D
681x434x285 (26.8″x17.1″x11.2″) 700x550x270 (27.5″x21.6″x10.6″) 700x550x275 (27.5″x21.6″x10.8″) 720x495x270 (28.3″x19.5″x10.6″)
728x555x300 (28.7″x21.8″x11.8″) 765x555x303 (30.12″x21.8″x11.9″) 770x555x300 (30.3″x21.8″x11.8″) 805x554x330 (31.7″x21.8″x12.9″)

Mounting Dimensions

Distance A (mm)

Distance B (mm)

460 (18.1″)

292 (11.5″)

450 (17.7″)

260 (10.2″)

450 (17.7″)

260 (10.2″)

452 (17.7″)

255 (10.0″)

452 (17.8″)

302(11.9″)

452 (17.8″)

286(11.3″)

487 (19.2″)

298 (11.7″)

511 (20.1″)

317 (12.5″)

800x554x333 (31.5″x21.8″x13.1″) 845x702x363 (33.3″x27.6″x14.3″) 890x673x342 (35.0″x26.5″x13.5″) 946x810x420 (37.2″x31.9″x16.5″) 946x810x410 (37.2″x31.9″x16.1″)

514 (20.2″) 540 (21.3″) 663 (26.1″) 673 (26.5″) 673 (26.5″)

340 (13.4″) 350 (13.8″) 354 (13.9″) 403 (15.9″) 403 (15.9″)

If you will install the unit on the ground or on a concrete mounting platform, do the following: 1. Mark the positions for four expansion bolts
based on dimensions chart. 2. Pre-drill holes for expansion bolts. 3. Place a nut on the end of each expansion bolt. 4. Hammer expansion bolts into the pre- drilled
holes. 5. Remove the nuts from expansion bolts, and
place outdoor unit on bolts.
6. Put washer on each expansion bolt, then replace the nuts.
7. Using a wrench, tighten each nut until snug.
WARNING
WHEN DRILLING INTO CONCRETE, EYE PROTECTION IS RECOMMENDED AT ALL TIMES.

If you will install the unit on a wall-mounted bracket , do the following:
CAUTION
Make sure that the wall is made of solid brick, concrete, or of similarly strong material. The wall must be able to support at least four times the weight of the unit.
1.Mark the position of bracket holes based on dimensions chart.
2. Pre-drill the holes for the expansion bolts. 3. Place a washer and nut on the end of each
expansion bolt. 4. Thread expansion bolts through holes in
mounting brackets, put mounting brackets in position, and hammer expansion bolts into the wall. 5. Check that the mounting brackets are level. 6. Carefully lift unit and place its mounting feet on brackets. 7. Bolt the unit firmly to the brackets. 8. If allowed, install the unit with rubber gaskets to reduce vibrations and noise.

Outdoor Unit Installation

Page 28

Step 4: Connect signal and power cables The outside unit’s terminal block is protected by an electrical wiring cover on the side of the unit. A comprehensive wiring diagram is printed on the inside of the wiring cover.
WARNING
BEFORE PERFORMING ANY ELECTRICAL OR WIRING WORK, TURN OFF THE MAIN POWER TO THE SYSTEM.
1. Prepare the cable for connection: USE THE RIGHT CABLE · Indoor Power Cable (if applicable): H05VV-F
or H05V2V2-F · Outdoor Power Cable: H07RN-F · Signal Cable: H07RN-F
CHOOSE THE RIGHT CABLE SIZE The size of the power supply cable, signal cable, fuse, and switch needed is determined by the maximum current of the unit. The maximum current is indicated on the nameplate located on the side panel of the unit. Refer to this nameplate to choose the right cable, fuse, or switch. a. Using wire strippers, strip the rubber
jacket from both ends of cable to reveal about 40mm (1.57in) of the wires inside. b. Strip the insulation from the ends of the wires. c. Using a wire crimper, crimp u-lugs on the ends of the wires.
PAY ATTENTION TO LIVE WIRE While crimping wires, make sure you clearly distinguish the Live (“L”) Wire from other wires.
WARNING
ALL WIRING WORK MUST BE PERFORMED STRICTLY IN ACCORDANCE WITH THE WIRING DIAGRAM LOCATED INSIDE OF WIRE COVER OF THE OUTDOOR UNIT .

2. Unscrew the electrical wiring cover and remove it. 3. Unscrew the cable clamp below the terminal
block and place it to the side. 4. Connect the wire according to the wiring
diagram, and firmly screw the u-lug of each wire to its corresponding terminal. 5. After checking to make sure every connection is secure, loop the wires around to prevent rain water from flowing into the terminal. 6. Using the cable clamp, fasten the cable to the unit. Screw the cable clamp down tightly. 7. Insulate unused wires with PVC electrical tape. Arrange them so that they do not touch any electrical or metal parts. 8. Replace the wire cover on the side of the unit, and screw it in place.
Cover
Screw

In North America
1. Remove the wire cover from the unit by loosening the 3 screws.
2. Dismount caps on the conduit panel. 3. Temperarily mount the conduit tubes(not
included) on the conduit panel. 4. Properly connect both the power supply and
low voltage lines to the corresponding terminals on the terminal block. 5. Ground the unit in accordance with local codes. 6. Be sure to size each wire allowing several inches longer than the required length for wiring. 7. Use lock nuts to secure the conduit tubes.

Terminal block Over 1.57in.(40mm)

Connecting cable
G
Power supply cord

Conduit panel

Wire Cover
Please select the appropriate through-hole according to the diameter of the wire.

Outdoor Unit Installation

Page 29

Refrigerant Piping Connection

When connecting refrigerant piping, do not let substances or gases other than the specified refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the refrigeration cycle. This can cause explosion and injury.
Note on Pipe Length

The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal efficiency is tested on units with a pipe length of 5 meters (16.5ft)( In North America, the standard pipe length is 7.5m (25′). A minimum pipe run of 3 metres is required to minimise vibration & excessive noise. In special tropical area, for the R290 refrigerant models, no refrigerant can be added and the maximum length of refrigerant pipe should not exceed 10 meters(32.8ft).
Refer to the table below for specifications on the maximum length and drop height of piping.
Maximum Length and Drop Height of Refrigerant Piping per Unit Model

Model
R410A,R32 Inverter Split Air Conditioner
R22 Fixed-speed Split Air Conditioner
R410A, R32 Fixed-speed Split Air Conditioner

Capacity (BTU/h) < 15,000
15,000 and < 24,000 24,000 and < 36,000
< 18,000 18,000 and < 21,000 21,000 and < 35,000
< 18,000 18,000 and < 36,000

Max. Length (m) 25 (82ft) 30 (98.5ft) 50 (164ft) 10 (33ft) 15 (49ft) 20 (66ft) 20 (66ft) 25 (82ft)

Max. Drop Height (m) 10 (33ft) 20 (66ft) 25 (82ft) 5 (16ft) 8(26ft) 10(33ft) 8(26ft) 10(33ft)

Connection Instructions ­ Refrigerant Piping

Step 1: Cut pipes
When preparing refrigerant pipes, take extra care to cut and flare them properly. This will ensure efficient operation and minimize the need for future maintenance.
1. Measure the distance between the indoor and outdoor units.
2. Using a pipe cutter, cut the pipe a little longer than the measured distance.
3. Make sure that the pipe is cut at a perfect 90° angle.

90°

Oblique Rough Warped

DO NOT DEFORM PIPE WHILE CUTTING
Be extra careful not to damage, dent, or deform the pipe while cutting. This will drastically reduce the heating efficiency of the unit.

Refrigerant piping Connection

Page 30

Step 2: Remove burrs Burrs can affect the air-tight seal of refrigerant piping connection. They must be completely removed.
1. Hold the pipe at a downward angle to prevent burrs from falling into the pipe.
2. Using a reamer or deburring tool, remove all burrs from the cut section of the pipe.
Pipe Reamer
Point down

PIPING EXTENSION BEYOND FLARE FORM

Outer Diameter of Pipe (mm)
Ø 6.35 (Ø 0.25″) Ø 9.52 (Ø 0.375″) Ø12.7 ( Ø 0.5″) Ø 16 ( Ø 0.63″) Ø 19 ( Ø 0.75″)

A (mm)

Min.

MMaaxx..

0.7 (0.0275″) 1.3 (0.05″)

1.0 (0.04″) 1.6 (0.063″)

1.0 (0.04″) 1.8 (0.07″)

2.0 (0.078″) 2.2 (0.086″)

2.0 (0.078″) 2.4 (0.094″)

Flare form

A

Step 3: Flare pipe ends Proper flaring is essential to achieve an airtight seal. 1. After removing burrs from cut pipe, seal
the ends with PVC tape to prevent foreign materials from entering the pipe. 2. Sheath the pipe with insulating material. 3. Place flare nuts on both ends of pipe. Make sure they are facing in the right direction, because you can’t put them on or change their direction after flaring.
Flare nut
Copper pipe

Pipe
6. Place flaring tool onto the form. 7. Turn the handle of the flaring tool clockwise
until the pipe is fully flared. 8. Remove the flaring tool and flare form, then
inspect the end of the pipe for cracks and even flaring.
Step 4: Connect pipes
When connecting refrigerant pipes, be careful not to use excessive torque or to deform the piping in any way. You should first connect the low-pressure pipe, then the high-pressure pipe.
MINIMUM BEND RADIUS
When bending connective refrigerant piping, the minimum bending radius is 10cm.

4. Remove PVC tape from ends of pipe when ready to perform flaring work.
5. Clamp flare form on the end of the pipe. The end of the pipe must extend beyond the edge of the flare form in accordance with the dimensions shown in the table below.

Radius 10cm (4in)

Instructions for Connecting Piping to Indoor Unit
1. Align the center of the two pipes that you will connect.

Refrigerant piping Connection

Indoor unit tubing

Flare nut Pipe

Page 31

2. Tighten the flare nut as tightly as possible by hand.
3. Using a spanner, grip the nut on the unit tubing.
4. While firmly gripping the nut on the unit tubing, use a torque wrench to tighten the flare nut according to the torque values in the Torque Requirements table below. Loosen the flaring nut slightly, then tighten again.

Outer Diameter of Pipe (mm)
Ø 6.35 (Ø 0.25″)
Ø 9.52 (Ø 0.375″) Ø 12.7 (Ø 0.5″)
Ø 16 (Ø 0.63″) Ø 19 ( Ø 0.75″)

TORQUE REQUIREMENTS

Tightening Torque (N·m) 18~20(180~200kgf.cm)
32~39(320~390kgf.cm)
49~59(490~590kgf.cm)

Flare dimension(B) (mm) 8.4~8.7 (0.33~0.34″)
13.2~13.5 (0.52~0.53″)
16.2~16.5 (0.64~0.65″)

57~71(570~710kgf.cm) 19.2~19.7 (0.76~0.78″) 67~101(670~1010kgf.cm) 23.2~23.7 (0.91~0.93″)

Flare shape
90 °± 4 45 °±2
B
R0.4~0. 8

DO NOT USE EXCESSIVE TORQUE
Excessive force can break the nut or damage the refrigerant piping. You must not exceed torque requirements shown in the table above.

Instructions for Connecting Piping to Outdoor Unit

1. Unscrew the cover from the packed valve on the side of the outdoor unit.
2. Remove protective caps from ends of valves.
3. Align flared pipe end with each valve, and tighten the flare nut as tightly as possible by hand.
4. Using a spanner, grip the body of the valve. Do not grip the nut that seals the service valve.

6. Loosen the flaring nut slightly, then tighten again.
7. Repeat Steps 3 to 6 for the remaining pipe.
USE SPANNER TO GRIP MAIN BODY OF VALVE
Torque from tightening the flare nut can snap off other parts of valve.

Refrigerant piping Connection

Valve cover
5. While firmly gripping the body of the valve, use a torque wrench to tighten the flare nut according to the correct torque values.
Page 32

Air Evacuation

Preparations and Precautions

8. If there is a change in system pressure, refer to Gas Leak Check section for information

Air and foreign matter in the refrigerant circuit can

on how to check for leaks. If there is no

cause abnormal rises in pressure, which can damage change in system pressure, unscrew the cap

the air conditioner, reduce its efficiency, and cause 9. from the packed valve (high pressure valve).

injury. Use a vacuum pump and manifold gauge to evacuate the refrigerant circuit, removing any non-condensable gas and moisture from the system.
Evacuation should be performed upon initial

Insert hexagonal wrench into the packed valve (high pressure valve) and open the valve by turning the wrench in a 1/4 counterclockwise turn. Listen for gas to exit the system, then close the valve after 5 seconds.

installation and when unit is relocated.

10. Watch the Pressure Gauge for one minute

BEFORE PERFORMING EVACUATION
Check to make sure the connective pipes between the indoor and outdoor units are connected properly .

to make sure that there is no change in pressure. The Pressure Gauge should read slightly higher than atmospheric pressure.
11. Remove the charge hose from the service port.

Check to make sure all wiring is connected

Flare nut

properly.

Evacuation Instructions

1. Connect the charge hose of the manifold gauge to service port on the outdoor unit’s low pressure valve.
2. Connect another charge hose from the manifold gauge to the vacuum pump.
3. Open the Low Pressure side of the manifold
gauge. Keep the High Pressure side closed. 4. Turn on the vacuum pump to evacuate the
system. 5. Run the vacuum for at least 15 minutes, or
until the Compound Meter reads -76cmHG (-10 5Pa).

Manifold Gauge

Compound gauge

Pressure gauge

-76cmHg
Low pressure valve Pressure hose /
Charge hose

High pressure valve
Charge hose Vacuum pump

Cap
valve body valve stem
12. Using hexagonal wrench, fully open both the high pressure and low pressure valves.
13. Tighten valve caps on all three valves (service port, high pressure, low pressure) by hand. You may tighten it further using a torque wrench if needed.
OPEN VALVE STEMS GENTLY
When opening valve stems, turn the hexagonal wrench until it hits against the stopper. Do not try to force the valve to open further.

Low pressure valve
6. Close the Low Pressure side of the manifold gauge, and turn off the vacuum pump.
7. Wait for 5 minutes, then check that there has been no change in system pressure.

Air Evacuation

Page 33

Note on Adding Refrigerant
Some systems require additional charging depending on pipe lengths. The standard pipe length varies according to local regulations. For example, in North America, the standard pipe length is 7.5m (25’). In other areas, the standard pipe length is 5m (16`). The refrigerant should be charged from the service port on the outdoor unit’s low pressure valve. The additional refrigerant to be charged can be calculated using the following formula:

ADDITIONAL REFRIGERANT PER PIPE LENGTH

Connective Pipe Air Purging

Length (m)

Method

Additional Refrigerant

< Standard pipe length Vacuum Pump

N/A

Standard pipe length

Vacuum Pump

Liquid Side: Ø 6.35 (ø 0.25″)

Liquid Side: Ø 9.52 (ø 0.375″)

R32:

R32:

(Pipe length ­ standard length) x 12g/m (Pipe length ­ standard length) x 24g/m

(Pipe length ­ standard length) x 0.13oZ/ft (Pipe length ­ standard length) x 0.26oZ/ft

R290:

R290:

(Pipe length ­ standard length) x 10g/m (Pipe length ­ standard length) x 18g/m

(Pipe length ­ standard length) x 0.10oZ/ft (Pipe length ­ standard length) x 0.19oZ/ft

R410A:

R410A:

(Pipe length ­ standard length) x 15g/m (Pipe length ­ standard length) x 30g/m

(Pipe length ­ standard length) x 0.16oZ/ft (Pipe length ­ standard length) x 0.32oZ/ft

R22:

R22:

(Pipe length ­ standard length) x 20g/m (Pipe length ­ standard length) x 40g/m

(Pipe length ­ standard length) x 0.21oZ/ft (Pipe length ­ standard length) x 0.42oZ/ft

For R290 refrigerant unit, the total amount of refrigerant to be charged is no more than:
387g(<=9000Btu/h), 447g(>9000Btu/h and <=12000Btu/h), 547g(>12000Btu/h and <=18000Btu/h), 632g(>18000Btu/h and <=24000Btu/h)

CAUTION DO NOT mix refrigerant types.

Air Evacuation

Page 34

Electrical and Gas Leak Checks

Before Test Run
Only perform test run after you have completed the following steps: · Electrical Safety Checks ­ Confirm that
the unit’s electrical system is safe and operating properly · Gas Leak Checks ­ Check all flare nut connections and confirm that the system is not leaking · Confirm that gas and liquid (high and low pressure) valves are fully open
Electrical Safety Checks
After installation, confirm that all electrical wiring is installed in accordance with local and national regulations, and according to the Installation Manual.
BEFORE TEST RUN
Check Grounding Work
Measure grounding resistance by visual detection and with grounding resistance tester. Grounding resistance must be less than 0.1.
Note: This may not be required for some locations in the US.
DURING TEST RUN
Check for Electrical Leakage
During the Test Run, use an electroprobe and multimeter to perform a comprehensive electrical leakage test.
If electrical leakage is detected, turn off the unit immediately and call a licensed electrician to find and resolve the cause of the leakage.
Note: This may not be required for some locations in the US.

WARNING ­ RISK OF ELECTRIC SHOCK
ALL WIRING MUST COMPLY WITH LOCAL AND NATIONAL ELECTRICAL CODES, AND MUST BE INSTALLED BY A LICENSED ELECTRICIAN.

Gas Leak Checks
There are two different methods to check for gas leaks.
Soap and Water Method
Using a soft brush, apply soapy water or liquid detergent to all pipe connection points on the indoor unit and outdoor unit. The presence of bubbles indicates a leak.
Leak Detector Method
If using leak detector, refer to the device’s operation manual for proper usage instructions.
AFTER PERFORMING GAS LEAK CHECKS After confirming that the all pipe connection points DO NOT leak, replace the valve cover on the outside unit.

Check-point of indoor unit

Check-point of outdoor unit

D

B

C

A

A: Low pressure stop valve B: High pressure stop valve C& D: Indoor unit flare nuts

Electrical and Gas Leak Checks

Page 35

Test Run

Test Run Instructions
You should perform the Test Run for at least 30 minutes. 1. Connect power to the unit.
2. Press the ON/OFF button on the remote controller to turn it on.
3. Press the MODE button to scroll through the following functions, one at a time:
· COOL ­ Select lowest possible temperature · HEAT ­ Select highest possible temperature
4. Let each function run for 5 minutes, and perform the following checks:

List of Checks to Perform No electrical leakage

PASS/FAIL

Unit is properly grounded

All electrical terminals properly covered

Indoor and outdoor units are solidly installed

All pipe connection points do not leak

Outdoor Indoor

(2):

(2):

Water drains properly from drain hose
All piping is properly insulated
Unit performs COOL function properly

Unit performs HEAT function properly

Indoor unit louvers rotate properly

Indoor unit responds to remote controller

DOUBLE-CHECK PIPE CONNECTIONS During operation, the pressure of the refrigerant circuit will increase. This may reveal leaks that were not present during your initial leak check. Take time during the Test Run to double-check that all refrigerant pipe connection points do not have leaks. Refer to Gas Leak Check section for instructions. 5. After the Test Run is successfully completed,
and you confirm that all checks points in List of Checks to Perform have PASSED, do the following: a. Using remote control, return unit to
normal operating temperature. b. Using insulation tape, wrap the indoor
refrigerant pipe connections that you left uncovered during the indoor unit installation process.
IF AMBIENT TEMPERATURE IS BELOW 17°C (62°F) You can’t use the remote controller to turn on the COOL function when the ambient temperature is below 17°C. In this instance, you can use the MANUAL CONTROL button to test the COOL function. 1. Lift the front panel of the indoor unit, and
raise it until it clicks in place. 2. The MANUAL CONTROL button is located
on the right-hand side of the unit. Press it 2 times to select the COOL function. 3. Perform Test Run as normal.
Manual control button

Test Run

Page 36

Impedance Information
(Applicable to following models only)
This appliance MST2ABD-18CR-QB9 can be connected only to a supply with system impedance no more than 0.163. In case necessary, please consult your supply authority for system impedance information. This appliance MST2ABE-22CR-QB9 can be connected only to a supply with system impedance no more than 0.186. In case necessary, please consult your supply authority for system impedance information. This appliance MST2ABF-30CR-QB6W can be connected only to a supply with system impedance no more than 0.045. In case necessary, please consult your supply authority for system impedance information. This appliance MST2ABF-30CR-QB9W can be connected only to a supply with system impedance no more than 0.085. In case necessary, please consult your supply authority for system impedance information. This appliance MSTABD-18CR-QB8 can be connected only to a supply with system impedance no more than 0.188. In case necessary, please consult your supply authority for system impedance information. This appliance MST2ABF-32CR-QC0W can be connected only to a supply with system impedance no more than 0.057. In case necessary, please consult your supply authority for system impedance information. This appliance MSTABB-12CRN1-B1 can be connected only to a supply with system impedance no more than 0.261. In case necessary, please consult your supply authority for system impedance information.
Page 37

The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. Any updates to the manual will be uploaded to the service website, please check for the latest version.

Test Run

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