Midea GAIA Series Residential Air Conditioner User Manual

Midea GAIA Series Residential Air Conditioner

Specifications

• Manufacturer: MIDEA
• Website: www.midea.com

Safety Precautions

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

Read Safety Precautions Before Operation and Installation.

Unit Specifications and Features

Please check the applicable models, technical data, F-GAS (if any), and manufacturer information from the Owner’s Manual- Product Fiche in the packaging of the outdoor unit. (European Union products only)

Outdoor Unit Installation

Follow the instructions below for outdoor unit installation:

1. Cut the packing belt.
2. Take the unit out of the carton.
3. Remove the foam from the unit.
4. Remove the packaging bag from the unit.

Refrigerant Piping Connection

Follow the instructions below for refrigerant piping connection:

1. Evacuation Instructions:

Refer to section 1 of the manual for detailed evacuation instructions.

1. Note on Adding Refrigerant:

Refer to section 2 of the manual for notes on adding refrigerant.

Air Evacuation

Follow the instructions below for air evacuation:

1. Evacuation Instructions:

Refer to section 1 of the manual for detailed evacuation instructions.

Electrical and Gas Leak Checks

Follow the instructions below for electrical and gas leak checks:

1. Refer to section 1 of the manual for detailed electrical and gas leak check instructions.

Test Run

Follow the instructions below for the test run:

1. Refer to section 1 of the manual for detailed test run instructions.

Packing and Unpacking the Unit

Instructions for packing and unpacking the unit:

Unpacking

Indoor unit:

1. Cut the sealing tape on the carton with a knife, one cut on the left, one cut in the middle, and one cut on the right.
2. Open the carton.
3. Take out the middle support plate if it is included.
4. Take out the accessory package, and take out the connecting wire if it is included.
5. Lift the machine out of the carton and lay it flat.
6. Remove the left and right package foam or the upper and lower packaging foam, untie the packaging bag.

Outdoor Unit:

1. Cut the packing belt.
2. Take the unit out of the carton.
3. Remove the foam from the unit.
4. Remove the packaging bag from the unit.

Packing

Indoor unit:

1. Put the indoor unit into the packing bag.
2. Attach the left and right package foam or the upper and lower packaging foam to the unit.
3. Put the unit into the carton, then put the accessory package in.
4. Close the carton and seal it with the tape.
5. Use the packing belt if necessary.

Outdoor unit:

1. Put the outdoor unit into the packing bag.
2. Put the bottom foam into the box.
3. Put the unit into the carton, then put the upper packaging foam on the unit.
4. Close the carton and seal it with the tape.
5. Use the packing belt if necessary.

NOTE: Please keep all packaging items if you may need them in the future.

Frequently Asked Questions

• No FAQs available at the moment.

RESIDENTIAL AIRCONDITIONER GAIA SERIES

IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.
Please check the applicable models, technical data, F-GAS(if any) and manufacturer information from the “Owner’s Manual- Product Fiche ” in the packaging of the outdoor unit. (European Union products only)

MIDEA GAIA SERIES
www.midea.com

Packing and unpacking the unit

Instructions for packing and unpacking the unit:
Unpacking: Indoor unit: 1.Cut the sealing tape on the carton with a knife, one cut on the left, one cut in the middle and one
cut on the right. 2.Open the carton. 3.Take out the middle support plate if it is included. 4.Take out the accessory package, and take out the connecting wire if it is included. 5.Lift the machine out of the carton and lay it flat. 6.Remove the left and right package foam or the upper and lower packaging foam, untie the
packaging bag.
Outdoor Unit 1.Cut the packing belt. 2.Take the unit out of the carton. 3.Remove the foam from the unit. 4.Remove the packaging bag from the unit.
Packing: Indoor unit: 1.Put the indoor unit into the packing bag. 2.Attach the left and right package foam or the upper and lower packaging foam to the unit. 3.Put the unit into the carton, then put accessory package in. 4.Close the carton and seal it with the tape. 5.Using the packing belt if necessary.
Outdoor unit: 1.Put the outdoor unit into the packing bag. 2.Put the bottom foam into the box. 3.Put the unit into the carton, then put the upper packaging foam on the unit. 4.Close the carton and seal it with the tape. 5.Using the packing belt if necessary.
NOTE: Please keep all packaging items if you may need in the future.

Safety Precautions

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

CAUTION
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 European Union countries
.
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.

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.
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.
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Safety Precautions

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 : T3.15AL/250VAC, T5AL/250VAC, T3.15A/250VAC, T5A/250VAC, T20A/250VAC, T30A/250VAC,etc. NOTE: For the units using R32 or R290 refrigerant , only the blast-proof ceramic fuse can be used.
UV-C lamp(Applicable to the unit contains an UV-C lamp only)
This appliance contains a UV-C lamp. Read the maintenance instructions before opening the appliance. 1. Do not operate UV-C lamps outside of the appliance. 2. Appliances that are obviously damaged must not be operated. 3. Unintended use of the appliance or damage to the housing may result in the escape of dangerous UV-C
radiation. UV-C radiation may, even in small doses, cause harm to the eyes and skin.
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Safety Precautions

4. Before opening doors and access panels bearing the ULTRAVIOLET RADIATION hazard symbol for the conducting USER MAINTENANCE, it is recommended to disconnect the power.
5. The UV-C lamp can not be cleaned, repaired and replaced. 6. UV-C BARRIERS bearing the ULTRAVIOLET RADIATION hazard symbol should not be removed.
WARNING This appliance contains an UV emitter. Do not stare at the light source.
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 gasses. For specific information on the 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.
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Safety Precautions

WARNING for Using R32/R290 Refrigerant
When flammable refrigerant are employed, appliance shall be stored in a well -ventilated area where the room size corresponds to the room area as specifiec for operation. For R32 frigerant models: Appliance shall be installed, operated and stored in a room with a floor area larger than 4m 2. Appliance shall not be installed in an unvertilated space, if that space is smaller than 4m2. For R290 refrigerant models, the minimum room size needed: <=9000Btu/h units: 13m2 >9000Btu/h and <=12000Btu/h units: 17m 2 >12000Btu/h and <=18000Btu/h units: 26m2 >18000Btu/h and <=24000Btu/h units: 35m2 Reusable mechanical connectors and flared joints are not allowed indoors. (EN Standard Requirements). Mechanical connectors used indoors shall have a rate of not more than 3g/year at 25% of the maximum allowable pressure. When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints are reused indoors, the flare part shall be re-fabricated. (UL Standard Requirements) When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints are reused indoors, the flare part shall be re-fabricated. (IEC Standard Requirements) Mechanical connectors used indoors shall comply with ISO 14903.
European Disposal Guidelines
This marking shown on the product or its literature, indicates that waste electrical and eletrical equipment should not be mixed with general household waste.
Correct Disposal of This Product
(Waste Electrical & Electronic Equipment)
This appliance contains refrigerant and other potentially hazardous materials. When disposing of this appliance, the law requires special collection and treatment. Do not dispose of this product as household waste or unsorted municipal waste. When disposing of this appliance, you have the following options:
· Dispose of the appliance at designated municipal electronic waste collection facility. · When buying a new appliance, the retailer will take back the old appliance free of charge. · The manufacturer will take back the old appliance free of charge. · Sell the appliance to certified scrap metal dealers.
Special notice Disposing of this appliance in the forest or other natural surroundings endangers your health and is bad for the environment. Hazardous substances may leak into the ground water and enter the food chain.
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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.
Functional Filter (On Back of Main Filter – Some Units)

Fresh Air Inlet
Front Panel

Air Filter

Display window

Air Outlet

RemoteControl

RemoteControlHolder (Some Units)

“”Displaystemperature,operationfeatureandErrorcodes: ” ” for 3 seconds when: ·TIMERONisset ·SWING,Boost,SILENCEorUV-Clampfeatureisturnedon ” ” for 3 seconds when: ·TIMEROFFisset ·SWING,Boost,SILENCEorUV-Clampfeature is turned off ” ” when defrosting(for cooling & heating units) “”whenActiveCleanfeatureisturnedon
” ” when 8°C(46°F) heating mode is turned on(some units)
“”whenECOfeatureisactivated(someunits) ” ” when wireless control feature is activated(some units) ” ” when O2 fresh feature is activated(some units)
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DisplayCode Meanings

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

16°C – 32°C (60°F – 90°F)

HEAT mode
0°C – 30°C (32°F – 86°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 – 24°C (5°F – 75°F)

DRY mode 10°C – 32°C (50°F – 90°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

16°C-32°C (60°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.

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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.
· Refrigerant Leakage Detection (some units)
The indoor unit will automatically display “EL0C” when it detects refrigerant leakage. · Breezeless function –The revolutionary double deflectors can bend, veer and soften the airflow to provide multiple levels of softness as you demand. –Enjoy the cozy coolness with breeze billowing away from you, with mild breeze, or eventually without a noticeable breeze. –The deflector consist of thousands of hourglass-shaped holes. Each of the micro-holes was specifically designed into hourglass structure in slightly different direction and size, which better pressures and mixes the cool air to provide an immersive cooling experience.
· Oxygen fresh air function
When the Oxygen fresh air function is activated, condensation may occur due to the temperature difference between indoor and outdoor. In order to avoid condensation, the system will automatically adjust the fan speed according to the current operating status. If the condensation risk is still exsit, this function will stop and “LC” display on the indoor unit window. Restart the Oxygen fresh air function by pressing the “Fresh air” button on the remote controller again.

· Louver Angle Memory(some units) When turning on your unit, the louver will automatically resume its former angle.
· Active Clean function(some units) — The Active Clean Technology washes away
dust and mold that may cause odors when it adheres to the heat exchanger by automatically freezing and then rapidly thawing the frost. A “pi-pi” sound will be heard. The Active clean operation is used to produce more condensed water to improve the cleaning effect, and the cold air will blow out. After cleaning, the internal wind wheel then keeps operating with hot air to blow- dry the evaporator, thus preventing the growth of mold and keeping the inside clean. — When this function is turned on, the indoor unit display window appears “CL ” , after 20 to 130 minutes, the unit will turn off automatically and cancel Active Clean function.
· 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.

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Unit Specifications and Features

· 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

· Breezeless Operation
Press the Breezeless button on the remote control to activate the breeze cool operation. The air conditioner will adjust the louver angle and fan speed automatically on the basis of room temperature and humidity variable. There are four different operation state, See Fig. B1, Fig. B2, Fig. B3, Fig. B4 .

Breeze billowing away

Mild breeze

Fig. B1
Breezeless

Fig. B2
Breezeless

Saving energy during sleep

Fig. B3

Fig. B4

NOTE: For the rooms with large heat load or the outdoor temperature is too high, you’d better not choose breezeless operation, this may result in uncomfortable feeling.

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Unit Specifications
and Features

· Setting Angle of Air Flow
Setting angle of air flow
While the unit is on, use the SWING button on remote control to set the direction (vertical/ horizontal 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. NOTE: According to the relative standards requirement
please set the vertical air flow louver to its maximum angle under heating capacity test

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, use the
supporting rod to prop it up. 2. Locate the MANUAL CONTROL button on
the right-hand side of the display box. 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.
Manual Control button

Range

Supporting rod

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.

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.

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Unit Specifications and Features

· Wireless control Feature Applicable system: iOS, Android Please keep your APP up to date with the latest version. Due to special situation may be occurred, we explicitlyclaims below: Not all of the Android and iOS system are compatible with APP. We will not be responsible for any issue as a result of the incompatibility. Wireless safety strategy Smart kit only support WPA- PSK/WPA2-PSK encryption and none encryption. WPA-PSK/WPA2-PSK encryption is recommended.
CAUTIONS: Due to different network situation, control process may return time- out sometimes. If this situation occurs, the display between board and APP maynot be the same, please do not feel confused. Smart Phone camera needs to be 5 million pixelsor above to make sure scan QR code well. Due to different network situation, sometimes, request time-out could happen, thus, it is necessary to do network configuration again. The APP system is subject to update without prior notice for product function improvement. The actual network configuration process may be slightly differentfrom the manual, the actual process shall prevail. Please check the Service Website for more information.
SPECIFICATION: Wi-Fi module model: EU-SK105, US-SK105 Standard: IEEE 802. 11b/g/n Antenna Type: Printed PCB Antenna Frequency Band: 2400-2483.5MHz Operation Temperature:0 C~45 C/32 F~113 F Operation Humidity: 10%~85% Power Input: DC 5V/300mA Maximum TX Power: <20dBm
PREPARATION: 1) Please ensure your mobile device is connected to Wifi router. Also, the Wifi router has already
connected to Internet before doing user registration and network configuration. 2) Make sure your mobile device has already been connected to the Wifi network which you want to use.
Also, you need to forget other irrelevant wifi network in case it influences your configuration process.
1. DOWNLOAD AND INSTALL APP On an app market (Google Play Store, Apple App Store), search for “MSmartHome” and find the MSmartHome app. Download and install it on your phone, You can also download the app by scanning the QR code below.
MSmartHome

Download the app & activate product

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Unit Specifications and Features

2. NETWORK CONFIGURATION CAUTIONS: It is necessary to forget any other around network and make sure the Android or iOS device just connect to the Wi-Fi network you want to configure. Make sure the Android or iOS device Wi-Fi function works well and can be connected back to your original Wi-Fi network automatically.
Kindly reminder: User must finish all the steps in 8 minutes after powering on air conditioner, otherwise you need to power on it again.
Register and log in Open the MSmartHome app, and create a new account to start ( you can also register through a third-party account). If you already had an existing account, use the account to log in.

Login
Enter email XXXXXXXXX Enter password
Login

Login

Connect your devices to MSmartHome
1). Please make sure your mobile phone is connected to Wi-Fi. If not, go to Settings and turn on the wireless connection, select and connect to a Wi-Fi. Also please turn on the Bluetooth on your phone. If not, go to Settings and turn it on.
2). Please power on your devices. 3). Open MSmartHome app on your phone. 4). If a message of “Smart devices discovered nearby” appears, click to add.

… Washing machine
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5). If no message appears, select “+” on the page and select your device in the list of nearby devices available. If your device is not listed, please add your device manually by the device category [Air Conditioner] and device model [Split AC].

6). Connect your device to Wi-Fi according to the instructions on app. If the connection fails, please follow the instructions provided by the app to continue with the operation.

Unit Specifications and Features

NOTE · Make sure your devices are powered on. · Keep your mobile phone close enough to your device when you are connecting network to
your device. · Connect your mobile phone to the wireless network at home, and make sure you know the
password of the Wi-Fi. · Check if your router supports 2.4 GHz Wi-Fi band and turn it on. If you are not sure whether
the router supports 2.4 GHz band, please contact the router manufacturer. · The device cannot connect to the Wi-Fi that requires authentication, and it usually appears
in public area such as hotels, restaurants, etc. Please connect to a Wi-Fi that does not require authentication. · It is recommended to use a Wi-Fi name that only contains letters and numbers. If your Wi-Fi name contains special characters, please modify it in the router. · Turn off the WLAN+ (Android) or WLAN Assistant (iOS) function of your mobile phone when connecting network to your devices. · In the case that your device connected to Wi-Fi before but it needs to reconnect, please click “+” on app Home page, and add your device again by the device category and model according to the instructions on app.
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Unit Specifications and Features

3. HOW TO USE APP Please ensure both your mobile device and air conditioner are connected to the Internet before using app to control the air conditioner via internet, please follow the next steps:

!
Login
Enter email XXXXXXXXX Enter password
Login

Login

MSmartHome

1 Click “Login ”

2 Choose the Air Conditioner.

3 Thus, user can control air conditioners
on/off status, operation mode, temperature,
fan speed and so on.

NOTE: Not all the function of the APP is available on air conditioner. For example: ECO, Boost, Swing function, please check the user manual to find more information.

4. SPECIAL FUNCTIONS
Including: Schedule, Sleep curve, Energy Monitor,Bill Control and Check. NOTE: Not all the unit can use these special function on the APP. Thus, if the air conditioner do not support the above function, the function will be hided from the function list.

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Unit Specifications and Features

Schedule Weekly, user can make an appointment to turn on or off the air conditioner on specific time. User also can choose circulation to keep the air conditioner under schedule control every week.
Every day

Sleep Users can customize their own comfortable sleep by setting target temperature.

Energy Monitor User can simply monitor the electricity consumption of air conditioner by checking the chart and history record.

Bill Control
User can set parameters to limit the electricity consumption over a period of time.

Check

Done

User can simply check the air conditioner running status with this function. When finishing this procedure, it can display the normal items, abnormal items, and detail information.

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Unit Specifications and Features

5. APP DECLARATION Hereby, we declare that this Smart kit is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU. A copy of the full DoC is attached. (European Union products only) CAUTIONS: WIFI module models: US-SK105,EU-SK105: FCC ID: 2ADQOMDNA21 IC: 12575A-MDNA21 This device complies with Part 15 of the FCC Rules and it contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operat ion is sub ject to the f ollow in g two con d ition s: (1) This d evice may not cause int erferen ce; a nd (2) T his d evice must accep t a ny in terfe re nce , including inte rf erence tha t may ca use
und esire d op erat ion of the de vice . Only operate the device in accordance with the instructions supplied. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: –Reorient or relocate the receiving antenna. –Increase the separation between the equipment and receiver. –Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected. –Consult the dealer or an experienced radio/TV technician for help.
Page 17

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
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.
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, use the
supporting rod to prop it up. 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. 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.

Supporting rod
Filter Tabs
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. Cleaning Your Louver
Only use a soft, dry cloth to wipe the unit clean. 1. Press and hold UP and DOWN buttons
on the remote controller together for one second, the deflector will open for a certain angle. 2. Unplug the unit, use a soft,dry cloth to wipe the louver.
3. Replug the unit, and this will reset the louver.
Page 18

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 19

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 The unit changes from COOL/HEAT mode to FAN mode
The indoor unit emits white mist

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 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 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 20

Troubleshooting

Issue
The outdoor unit makes noises
Dust is emitted from either the indoor or outdoor unit

Possible Causes
The unit will make different sounds based on its current operating mode.
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
Operation is erratic, unpredictable, or unit is unresponsive

During operation, the fan speed is controlled to optimize product operation.
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 21

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 22

FROM EDGE TO HOLE CENTER:50mm
Accessories

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

50 2
100 4 mm inch 150 6 RECOMMAND

BUBBLE LEVEL
100 mm 50 4 inch 2
LIQUID

50

100

2

4

GAS

Anchor
Mounting plate fixing screw

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

FROM EDGE TO HOLE CENTER:100mm

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 G as side
1 2 3

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

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 models

Page 23

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

Attach Mounting Plate

5

6

Installation Summary -Indoor Unit

Drill Wall Hole
7

Connect Piping
8

Connect Wiring (not applicable for some locations in North America)

Prepare Drain Hose

Wrap Piping and Cable (not applicable for some locations in North America)

9

8 STEP

Mount Indoor Unit
Page 24

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

2
4 6

5 7

8

9

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 25

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 26

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.

Wall

Indoor

Outdoor

5-7mm (0.2-0.275in)

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

FROM EDGE TO HOLE CENTER:100mm FROM EDGE TO HOLE CENTER:100mm FROM EDGE TO HOLE CENTER:100mm

FROM EDGE TO HOLE CENTER:50mm FROM EDGE TO HOLE CENTER:50mm
FROM EDGE TO HOLE CENTER:50mm

CAUTION When drilling the wall hole, make sure to avoid wires, plumbing, and other sensitive components.
MOUNTING PLATE DIMENSIONS Different models have different mounting plates. For the convenience of installation, there are bubble level, carved dimensions on the mounting plate. Please install the plate and drill wall hole according to the information of the mounting plate. See the figures below.
CorrectorientationofMountingPlate

50 2
100 4 mm inch 150 6 RECOMMAND

BUBBLE LEVEL
100 mm 50 4 inch 2
LIQUID

50

100

2

4

GAS

50 2
100 4 mm inch 150 6 RECOMMAND

BUBBLE LEVEL
100 mm 50 4 inch 2 LIQUID

50

100

2

4

GAS

50 2

100 4

mm 150

inch 6

RECOMMAND

BUBBLE LEVEL
100 mm 50 4 inch 2
LIQUID

50

100

2 GAS

4

pipe hole
75(2.95)

SU mm inch

50(1.97) mm inch RECOMMAND

BUBBLE LEVEL
SU

pipe hole 75(2.95)
70(2.75)

40(1.57) 51(2.0)
335(13.19)

1000(39.37)

Indoor Unit Installation

Page 27

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.

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).
Wrap the connection point firmly with Teflon tape to ensure a good seal and to prevent leaks. 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.

Knock-out Panel
3. 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.

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.

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.

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.

Indoor Unit Installation

Page 28

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, a surge protector and main power switch should be installed.
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 and power cables
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 or H05RN-F · Signal Cable: H07RN-F
NOTE: In North America, choose the cable type according to the local electrical codes and regulations.

Minimum Cross-Sectional Area of Power and Signal Cables (For reference) (Not applicable for North America)

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. NOTE: In North America, please choose the right cable size according to the Minimum Circuit Ampacity indicated on the nameplate of the unit.

Indoor Unit Installation

Page 29

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 FR’ ONT 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: Wrap piping 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

Signal wire

Space behind unit Refrigerantpiping Insulation tape
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 30

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 (1.18-1.95in), depending on the model.

30-50mm (1.18-1.95in)

30-50mm (1.18-1.95in)

Move to left or right

Indoor Unit Installation

Page 31

Installation

Outdoor Unit Installation

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

60cm (24in) above

30ocmn le(1ft2in) 200cmin (f7ro9nin)t

30cm from

b(1a2ciknw) all

60ocnmrig(2h4itn)

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, take appropriate measures to prevent ice buildup and coil damage.

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.

Outdoor Unit Installation

Page 32

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.

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.

Air inlet

A
Air inlet

D B

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 33

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″)
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″)
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.

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 (17.8″)

255 (10.0″)

452 (17.8″)

302(11.9″)

452 (17.8″)

286(11.3″)

487 (19.2″) 511 (20.1″)

298 (11.7″) 317 (12.5″)

514 (20.2″) 540 (21.3″)

340 (13.4″) 350 (13.8″)

663 (26.1″) 673 (26.5″)

354 (13.9″) 403 (15.9″)

673 (26.5″)

403 (15.9″)

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 34

Outdoor Unit Installation

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
Please choose the right cable refer to ” Cable types” in page 29.
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. NOTE: In North America, please choose the right cable size according to the Minimum Circuit Ampacity indicated on the nameplate of the unit.
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.
PA Y 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.
Page 35

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
NOTE: If the cable clamp looks like the following, please select the appropriate through-hole according to the diameter of the wire.
Buckle
Three size hole: Small, Large, Medium

When the calbe is not fasten enough, use the buckle to prop it up , so it can be clamped tightly.
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.

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 36

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
Copperpipe
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.

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.
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

Page 37

Indoor unit tubing

Flare nut

Pipe

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) 67~101(670~1010kgf.cm)

19.2~19.7 (0.76~0.78″) 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 38

Air Evacuation

Preparations and Precautions
Air and foreign matter in the refrigerant circuit can cause abnormal rises in pressure, which can damage the air conditioner, reduce its efficiency, and cause 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 installation and when unit is relocated.
BEFORE PERFORMING EVACUATION Check to make sure the connective pipes
between the indoor and outdoor units are connected properly . Check to make sure all wiring is connected properly.

8. If there is a change in system pressure, refer to Gas Leak Check section for information on how to check for leaks. If there is no change in system pressure, unscrew the cap
9. from the packed valve (high pressure valve). 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.
10. Watch the Pressure Gauge for one minute 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.
Flare nut

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).

ManifoldGauge

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 39

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″)
R32: (Pipe length ­ standard length) x 12g/m (Pipe length ­ standard length) x 0.13oZ/ft
R290: (Pipe length ­ standard length) x 10g/m (Pipe length ­ standard length) x 0.10oZ/ft
R410A: (Pipe length ­ standard length) x 15g/m (Pipe length ­ standard length) x 0.16oZ/ft
R22: (Pipe length ­ standard length) x 20g/m (Pipe length ­ standard length) x 0.21oZ/ft

Liquid Side: Ø 9.52 (ø 0.375″)
R32: (Pipe length ­ standard length) x 24g/m (Pipe length ­ standard length) x 0.26oZ/ft
R290: (Pipe length ­ standard length) x 18g/m
(Pipe length ­ standard length) x 0.19oZ/ft
R410A: (Pipe length ­ standard length) x 30g/m
(Pipe length ­ standard length) x 0.32oZ/ft R22:
(Pipe length ­ standard length) x 40g/m (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.
Always wear work gloves and goggles when handling refrigerant.

Air Evacuation

Page 40

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 North America.
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 North America.

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 41

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 16°C (60°F)
You can’t use the remote controller to turn on the COOL function when the ambient temperature is below 16°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 use the supporting rod to prop it up.
2. The MANUAL CONTROL button is located on the right-hand side of display box. Press it 2 times to select the COOL function.
3. Perform Test Run as normal.
Manual Control button

Test Run

Page 42

References

• Midea - Make yourself at Home - World's Number 1 Appliance Producer

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