Manuals+

Costway J-Smart Mini Split Air Conditioner

User's Manual and Warranty Information

Models: FP10293US, FP10302US, FP10318US, FP10324US

Contents

This document outlines the operation, safety, installation, maintenance, and warranty for the Costway J-Smart Mini Split Air Conditioner.

Operation and Maintenance

Warning

WARNING: This air conditioner uses R32 flammable refrigerant. Notes: Air conditioner with R32 refrigerant, if roughly treated, may cause serious harm to the human body or surrounding things.

Symbol Explanations

SymbolNoteExplanation

[Warning Symbol A2L]

WARNINGThis symbol shows that this appliance uses a flammable refrigerant. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire. (Only for AC with UL or ETL-MARKING, UL60335-2-40)

[Warning Symbol]

WARNINGThis symbol shows that this appliance uses a flammable refrigerant. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire. (For AC with CE-MARKING & CB-MARKING, IEC 60335-2-40+A1:2016)

[Warning Symbol]

WARNINGThis symbol shows that this appliance uses a low burning velocity material. (Only for AC with CB-MARKING, IEC 60335-2-40:2018)

[Book Symbol]

CAUTIONThis symbol shows that the operation manual should be read carefully.

[Person with Tools Symbol]

CAUTIONThis symbol shows that a service personnel should be handling this equipment with reference to the installation manual.

[Information Symbol]

CAUTIONThis symbol shows that information is available such as the operating manual or installation manual.

Safety Precautions

Incorrect installation or operation by not following these instructions may cause harm or damage to people, properties, etc. The seriousness is classified by the following indications:

▲ WARNING: This symbol indicates the possibility of death or serious injury.

▲ CAUTION: This symbol indicates the possibility of injury or damage to properties.

General Safety Warnings

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. (Only for AC with CE-MARKING)

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. (Except for AC with CE-MARKING)

Specific Safety Instructions

The air conditioner must be grounded. Incomplete grounding may result in electric shocks. [Grounding symbol illustration] Do not connect the earth wire to the gas pipeline, water pipeline, lightning rod, or telephone earth wire.Always switch off the device and cut the power supply when the unit is not in use for long time so as to ensure safety. [Power off symbol illustration] ❌ Otherwise, it may cause short circuit.Take care not let the remote control and the indoor unit watered or being too wet. [Water droplet on remote/unit illustration] ❌ Otherwise, it may cause short circuit.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.Don't cut off main power switch during operating or with wet hands. [Wet hands on switch illustration] ❌ It may cause electric shock.Don't share the socket with other electric appliance. [Multiple plugs in one socket illustration] ❌ Otherwise, it may cause electric shock even fire and explosion.
Always switch off the device and cut the power supply before performing any maintenance or cleaning. [Power off symbol illustration]Don't pull the power cable. [Pulling power cord illustration] ❌ The damage of pulling power cord will cause serious electric shock.A warning that ducts connected to an appliance shall not contain an ignition source.

Further Safety Precautions

Don't install air conditioner in a place where there is flammable gas or liquid. The distance between them should be above 1m. [Bottle and unit with 1m distance illustration] It may cause fire even explosion.Don't use liquid or corrosive cleaning agent wipe the air conditioner and sprinkle water or other liquid either. [Spray bottle and unit illustration] ❌ Doing this may cause electric shock or damage to the unit.Don't attempt to repair the air conditioner by yourself. [Tools and unit illustration] ❌ Incorrect repairs may cause fire or explosion. Contact a qualified service technician for all service requirement.
Don't use air conditioner in lightning storm weather. [Lightning striking unit illustration] ❌ Power supply should be cut in time to prevent the occurrence of danger.Don't put hands or any objects into the air inlets or outlets. [Hand near air inlet illustration] ❌ This may cause personal injury or damage to the unit.Please note whether the installed stand is firm enough or not. [Unit on stand illustration] If it is damaged, it may lead to the fall of the unit and cause the injury.
Don't block air inlet or air outlet. [Blocked air inlet/outlet illustration] ❌ Otherwise, the cooling or heating capacity will be weakened, even cause system stop operating.Don't let the air conditioner blow against the heater appliance. [Airflow towards heater illustration] ❌ Otherwise, it will lead to incomplete combustion, thus causing poisoning.The appliance shall be installed in accordance with national wiring regulations. An earth leakage breaker with rated capacity must be installed to avoid possible electric shocks.

Environmental and Usage Precautions

This product contains fluorinated greenhouse gases. Refrigerant leakage contributes to climate change. Refrigerant with lower global warming potential (GWP) would contribute less to global warming than a refrigerant with higher GWP, if leaked to the atmosphere. This appliance contains a refrigerant fluid with a GWP equal to [675]. This means that if 1 kg of this refrigerant fluid would be leaked to the atmosphere, the impact on global warming would be [675] times higher than 1 kg of CO2, over a period of 100 years. Never try to interfere with the refrigerant circuit yourself or disassemble the product yourself and always ask a professional.

Ensure no following objects under the indoor unit:

  1. Microwaves, ovens and other hot objects.
  2. Computers and other high electrostatic appliances.
  3. Sockets that plug frequently.

The joints between indoor and outdoor unit shall not be reused, unless after re-flaring the pipe.

The specification of the fuse are printed on the circuit board, such as: 3.15A/250V AC, etc.

WEEE Warning

Meaning of crossed out wheeled dustbin: Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being. When replacing old appliances with new ones, the retailer is legally obligated to take back your old appliance for disposal at least free of charge. [WEEE symbol illustration]

Further Usage Cautions

Don't open the windows and doors for long time when the air conditioner is running. [Open window/door illustration] ❌ Otherwise, the cooling or heating capacity will be weakened.Don't stand on the top of the outdoor unit or place heavy things on it. [Person standing on unit illustration] ❌ This could cause personal injuries or damage the unit.Don't use the air conditioner for other purposes, such as drying clothes, preserving foods, etc. [Clothes drying illustration] ❌
Don't apply the cold air to the body for a long time. [Person with cold air blowing on them illustration] ❌ It will deteriorate your physical conditions and cause health problems.Set the suitable temperature. It is recommended that the temperature difference between indoor and outdoor temperature should not be too large. Appropriate adjustments of the setting temperature can prevent the waste of electricity.If your air conditioner is not fitted with a supply cord and a plug, an anti-explosion all-pole switch must be installed in the fixed wiring and the distance between contacts should be no less than 3.0 mm.

If your air conditioner is permanently connected to the fixed wiring, a anti-explosion residual current device (RCD) having rated residual operating current not exceeding 30 mA should be installed in the fixed wiring.

The power supply circuit should have leakage protector and air switch of which the capacity should be more than 1.5 times of the maximum current.

Regarding the installation of the air conditioners, please refer to the below paragraphs in this manual.

Notices for Usage

The conditions of unit can't normally run

Within the temperature range provided in the following table, the air conditioner may stop running and other anomalies may arise.

Temperature Range
OutdoorIndoor
Cooling>43°C (Apply to T1)>52°C (Apply to T3)
Heating<-7°C>27°C

Note: T1 and T3 refer to ISO 5151.

Notes for heating

Notes for turning off

When the air conditioner is turned off, the main controller will automatically decide whether to stop immediately or after running for dozens of seconds with lower frequency and lower air speed.

Emergency operation

If the remote controller is lost or broken, use force switch button to operate the air conditioner. [Illustration of indoor unit with 'Force switch' indicated].

Airflow direction adjustment

  1. Use up-down swing and left-right swing buttons on the remote controller to adjust the airflow direction. Refer to the operation manual of the remote controller for detail.
  2. For models without left-right swing function, the air vent has to be moved manually.

Note: Move the air vents before the unit is in operation, or your finger might be injured. Never place your hand into the air inlet or outlet when the air conditioner is in operation.

Specific caution

  1. Open front panel of the indoor unit.
  2. The connector (as shown in the figure) can not touch the terminal board, and is positioned as shown in the figure. [Illustration showing connector, terminal board, and cables].

Names of each part

Indoor unit

There are two kinds of indoor units: Fig A and Fig B. The actual shape shall prevail.

Fig A: [Diagram of indoor unit components: Air inlet grille, Panel, Air filter, Air louver, Air vent, Air outlet, Force switch, Pipe protection ring].

Fig B: [Diagram of indoor unit components: Air inlet grille, Panel, Air filter, Air louver, Air vent, Air outlet, Force switch, Pipe protection ring].

Outdoor unit

[Diagram of outdoor unit components: Air inlet, Power cable, Air outlet grille, Connecting pipe, Drain hose, Air outlet, Pipe protection ring].

Note: All illustrations in this manual are for explanation purposes only. Your air conditioner may be slightly different. The actual shape shall prevail. They are subject to change without notice for future improvement. Plug, WIFI function, Negative-ion function, and Vertical and horizontal swing function are optional; the actual unit shall prevail.

Clean and care

A WARNING

Clean the panel

When the panel of the indoor unit is contaminated, clean it gently with a wrung towel using tepid water below 40°C, and do not remove the panel while cleaning. [Illustration of cleaning the panel with a cloth].

Clean the air filter

Remove the air filter

Fig A: [Illustration showing how to open the panel and remove the filter]. 1. Use both hands to open the panel for an angle from both ends of the panel in accordance with the direction of the arrow. 2. Release the air filter from the slot and remove it.

Fig B: [Illustration showing filter location above the fuselage]. The air filter is located above the fuselage. Take it out facing upward.

Clean the Air Filter

Use a vacuum cleaner or water to rinse the filter. If the filter is very dirty (e.g., with greasy dirt), clean it with warm water (below 45°C) with mild detergent, and then put the filter in the shade to dry in the air. [Illustration of cleaning filter with water and detergent].

Mount the Filter

Reinstall the dried filter in reverse order of removal, then cover and lock the panel. [Illustration of reinstalling filter for Fig A and Fig B].

Check before using

  1. Check whether all the air inlets and outlets of the units are unblocked.
  2. Check whether there is blocking in the water outlet of the drain pipe, and immediately clean it up if any.
  3. Check the ground wire is reliably grounded.
  4. Check whether the remote control batteries are installed, and whether the power is sufficient.
  5. Check whether there is damage in the mounting bracket of the outdoor unit, and if any, please contact your local service center.

Maintain after using

  1. Cut off the power source of the air conditioner, turn off the main power switch and remove the batteries from the remote controller.
  2. Clean the filter and the unit body.
  3. Remove the dust and debris from the outdoor unit.
  4. Check whether there is damage in the mounting bracket of the outdoor unit, and if any, please contact your local service center.

Troubleshooting

CAUTION

Do not repair the air conditioner by yourself as wrong maintenance may cause electric shock or fire or explode. Please contact the authorized service center and let the professionals conduct the maintenance. Checking the following items prior to contacting for maintenance can save your time and money.

PhenomenonTroubleshooting
The air conditioner does not work.
  • There might be power outages. Wait until power is restored.
  • Power plug may be loose from the socket. → Tighten the plug securely.
  • Power switch fuse may blow. → Replace the fuse.
  • The time for timing boot is yet to come. → Wait or cancel the timer settings.
The air conditioner can't run after the immediate start-up after it is shut down.If the air conditioner is turned on immediately after it is turned off, the protective delay switch will delay the operation for 3 to 5 minutes.
The air conditioner stops running after it starts up for a while.
  • May have reached the setting temperature. → It is a normal function phenomenon.
  • May be at a defrosting state. → It will automatically restore and run again after defrosting.
  • Shutdown Timer may be set. → If you continue to use, please turn it on again.
The wind blows out, but the cooling/heating effect is not good.
  • Excessive accumulation of dust on filter, blocking at air inlet and outlet, and the excessively small angle of the louver blades all will affect the cooling and heating effect. → Please clean the filter, remove the obstacles at the air inlet and outlet and regulate the angle of the louver blades.
  • Poor cooling and heating effect caused by doors and windows opening, and unclosed exhaust fan. → Please close the doors, windows, the exhaust fan, etc.
  • Auxiliary heating function is not turned on while heating, which may lead to poor heating effect. → Turn on the auxiliary heating function (only for models with auxiliary heating function).
  • Mode setting is incorrect, and the temperature and wind speed settings are not appropriate. → Please re-select the mode, and set the appropriate temperature and wind speed.
The indoor unit blows out odor.
  • The air conditioner itself does not have undesirable odor. If there is odor, it may be due to accumulation of the odor in the environment. → Clean the air filter or activate the cleaning function.
There is sound of running water during the running of air conditioner.When the air conditioner is started up or stopped, or the compressor is started up or stopped during the running, sometimes the "hissing" sound of running water can be heard. → This is the sound of the flow of the refrigerant, not a malfunction.
A slight "click" sound is heard at the of start-up or shut-down.Due to temperature changes, panel and other parts will swell, causing the sound of friction. → This is normal, not a fault.
The indoor unit makes abnormal sound.
  • The sound of fan or compressor relay switched on or off.
  • When the defrosting is started or stop running, it will create sound. → That is due to the refrigerant flows to reverse direction. They are not malfunctions.
  • Too much dust accumulation on the air filter of the indoor unit may result in fluctuation of the sound. → Clean the air filters in time.
  • Too much air noise when "Strong wind" is turned on. → This is normal; if feeling uncomfortable, please deactivate the "Strong wind" function.
There are water drops over the surface of the indoor unit.
  • When ambient humidity is high, water drops will be accumulated around the air outlet or the panel, etc. → This is a normal physics phenomenon.
  • Prolonged cooling run in open space produces water drops. → Close the doors and windows.
  • Too small opening angle of the louver blades may also result in water drops at the air inlet. → Increase the angle of the louver blades.
During the cooling operation, the indoor unit outlet sometimes will blow out mist.When the indoor temperature and humidity are high, it happens sometimes. → This is because the indoor air is cooled rapidly. After it runs for some time, the indoor temperature and humidity will be reduced and the mist will disappear.

Immediately stop all operations and cut off the power supply, contact our Service center locally in following situations:

Notices for installation

Important Notices

Unpacking Inspection

Safety Principles for Installing Air Conditioner

Requirements For Installation Position

Installation environment inspection

Requirements of the mounting structure

The mounting rack of the outdoor unit shall be fastened with expansion bolt. Ensure the secure installation regardless of what type of wall on which it is installed, to prevent potential dropping that could hurt people.

Electrical Safety Requirements

Minimum Cross-Sectional Area of Power cable and interconnection cord

North AmericaOther Regions
Appliance Amps(A)AWGRated Current of Appliance(A)Nominal Cross-Sectional Area(mm²)
1018>3 and ≤60.75
1316>6 and ≤101
1814>10 and ≤161.5
2512>16 and ≤252.5
3010>25 and ≤324
408>32 and ≤406

The size of the interconnection cord, power 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: Core number of cable refer to the detailed wiring diagram adhered on the unit which you purchased.

Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

Requirements for operations at raised height

Grounding Requirements

Others

Packing list

Packing list of the indoor unit

NameQuantityUnit
Indoor Unit1Set
Remote Controller(*)1PC
Batteries (7#) (*)2PC
Instructions1Set
Drain pipe (*)1PC

Packing list of the outdoor unit

NameQuantityUnit
Outdoor Unit1Set
Connecting pipe(*)2PC
Plastic Strap(*)1ROLL
Pipe Protection Ring(*)1PC
Luting (putty) (*)1PACKET

NOTE: Optional parts(*), some models without. Interconnection cord and sound deadening pads are optional accessories. All accessories shall be subject to actual packaging material, and if there is any difference, please understand.

Installation for indoor unit

Dimension drawing of indoor unit installation

[Diagram showing dimensions for indoor unit installation: Space to the ceiling (15cm above), Space to the wall (20cm above), Space to the floor, and overall dimensions 230-260cm].

Mounting plate

  1. The wall for installation of the indoor unit shall be hard and firm, so as to prevent vibration.
  2. Use the "+" type screw to fasten the peg board, horizontally mount the peg board on the wall, and ensure the lateral horizontal and longitudinal vertical.
  3. Pull the peg board by hand after the installation, to confirm whether it is solid. [Illustration of mounting plate installation].

Wall-through Hole

  1. Make a hole with an electric hammer or a water drill at the predetermined position on the wall for piping, which shall slant outwardly by 5°-10°.
  2. To protect the piping and the cables from being damaged running through the wall, and from the rodents that may inhabit in the hollow wall, a pipe protecting ring shall be installed and sealed with putty. [Illustration of wall-through hole with pipe protection ring and putty].

Note: Usually, the wall hole is Ø60mm~Ø80mm. Avoid pre-buried power wire and hard wall when making the hole.

Route of Pipeline

Depending on the position of the unit, the piping may be routed sideway from the left or the right (Fig 1), or vertically from the back (Fig 2) (depending on the pipe length of the indoor unit). In the case of sideway routing, cut off the outlet cutting stock of the opposite side. [Diagrams Fig 1 and Fig 2 showing pipeline routing options].

Install the connection pipe

  1. Remove the fixed part to pull out pipe of indoor machine from the case. Screw the hexagon nut in the left of the joint to the end with your hand.
  2. Connect the connecting pipe to the indoor unit: Aim at the pipe center, tighten the Taper nut with fingers, and then tighten the Taper nut with a torque wrench, and the direction is shown in the diagram on the right. The torque used is shown in the following table. [Diagram showing Taper nut connection with torque wrench].

Note: Carefully check if there is any damage of joints before installation. The joints shall not be reused, unless after re-flaring the pipe.

Tightening torque table

The size of pipe(mm)Torque(N·m)
Φ6/Φ6.3515~25
Φ9/Φ9.5235~40
Φ12/Φ12.745~60
Φ15.8873~78
Φ19.0575~80

IMPORTANT: If the unit with the quick connectors, please refer to the booklet of "Install the connection pipe (the unit with the quick connectors)".

Wrap the Piping

  1. Use the insulation sleeve to wrap the joint part of the indoor unit and the connection pipe, and then use insulating material to pack and seal insulation pipe, to prevent generation of condensate water on the joint part.
  2. Connect the water outlet with drain pipes, and make the connection pipe, cables, and the drain hose straight.
  3. Use plastic cable ties to wrap the connecting pipes, cables and drain hose. Run the pipe sloping downward. [Illustration showing wrapped piping with plastic strap].

Fixing the Indoor Unit

  1. Hang the indoor unit on the peg board, and move the unit from left to right to ensure that the hook is properly positioned in the peg board.
  2. Push toward the lower left side and the upper right side of the unit toward the peg board, until the hook is embedded in the slot and makes a "click" sound. [Illustration of hanging the indoor unit].

Interconnection cord installation

Connect interconnection cord of indoor unit

  1. Open the panel, remove the screw on the wiring cover and then take down the cover.
  2. Make the interconnection cord go through the cable-cross hole at the back of the indoor unit and then pull it out from the front side. (Some models do not have a signal cable.) [Illustration showing wiring cover, panel, screw, and interconnection cord path].
  3. Remove the wire clip; connect the interconnection cord to the wiring terminal according to the wiring diagram; tighten the screw and then fix the interconnection cord with wire clip.

NOTE: This manual usually includes the wiring mode for different kinds of air conditioners. We cannot exclude the possibility that some special types of wiring diagrams are not included. The diagrams are for reference only. If there is any difference with this wiring diagram, please refer to the detailed wiring diagram adhered on the unit which you purchased.

Wiring Diagrams

Constant speed: [Diagram showing wiring for constant speed: L, N, 1, 2(N), 3 to Outdoor unit].

Variable speed: [Diagram showing wiring for variable speed: L, N, S to Outdoor unit].

Constant speed (alternative): [Diagram showing wiring for constant speed: L, N, 1, 2(N), 3, 4, 5 to Outdoor unit].

Variable speed (alternative): [Diagram showing wiring for variable speed: S, N, Lo, L to Outdoor unit].

Connector: If there is a connector, connect it directly. [Illustration of a connector].

  1. Put wiring cover back and then tighten the screw.
  2. Close the panel.

After installation check

  1. Check if the screws have been fixed effectively, and there is no risk of loosening.
  2. Check if the connector of the display board is in the right place and does not touch the terminal board.
  3. Check if the control box cover is closed tightly.

Installation for outdoor unit

Dimension drawing of outdoor unit installation

[Diagram showing dimensions for outdoor unit installation: Space to the obstruction (50cm above, 30cm above), Air in side (10cm above), Air out side (20cm above), and labels for Left/Right installation feet, Air inlet, Air outlet].

Installation outdoor unit bolt

Outdoor Unit Size of Shape W1(W2)*H*D) (mm)A (mm)B (mm)
665(710)×420×280430280
660(710)×500×240500260
730(780)×545×285540280
709(761)×536×280480283
750(804)×550×285480283
800(860)×545×315545315
785(845)×555×300546316
825(880)×655×310540335
900(950)×700×360632352
970(1044)×805×395675410
940(1010)×1320×370625364
940(1008)×1366×401610388
650(703)×455×233480253

Install the connection pipe

Connect the Outdoor Unit with Connecting Pipe: Aim the counter-bore of the connecting pipe at the stop valve, and tighten the Taper nut with fingers. Then tighten the Taper nut with a torque wrench. [Diagram showing stop valve, taper nut, connection pipe, liquid side pipe, gas side pipe, spanner, torque wrench, stop valve cover].

★When the length of the connecting pipe is changed, extra amount of refrigerant need to be added or reduced, so that the operation and performance of the air conditioner will not be compromised.

Length of connection pipeAdded or reduced refrigerant (for the unit)Amount of refrigerant
<3MCC≥12000Btu: reduce 20g/m
CC≥18000Btu: reduce 40g/m		<1Kg
3-5MNot needed<2Kg
5-15MCC≥12000Btu: add 16g/m
CC≥18000Btu: add 24g/m		<1Kg

Note: 1. This table is for reference only. 2. The joints shall not be reused, unless after re-flaring the pipe. 3. After installation, check the stop valve cover whether it is fixed effectively.

IMPORTANT: If the unit with the quick connectors, please refer to the booklet of "Install the connection pipe (the unit with the quick connectors)".

Wiring Connection

  1. Loosen the screws and remove E-parts cover from the unit.
  2. Connect the cables respectively to the corresponding terminals of the terminal board of the outdoor unit (see the wiring diagram), and if there are signals connected to the plug, just conduct butt joint.
  3. Ground wire: Remove the grounding screw out of the electric bracket, cover the grounding wire end onto the grounding screw and screw it into the grounding hole.
  4. Fix the cable reliably with fasteners (Pressing board).
  5. Put the E-parts cover back in its original place and fasten it with screws. [Illustration showing E-parts cover and wiring connection].

Wiring diagram

Constant speed: [Diagram showing wiring for constant speed: L, N, 1, 2(N), 3 to Indoor unit, and L, N, 1, 2(N), 3, 4, 5 to Indoor unit].

Variable speed: [Diagram showing wiring for variable speed: L, N, S to Indoor unit, and S, N, Lo, L to Indoor unit].

Connector: If there is a connector, connect it directly. [Illustration of a connector].

NOTE: This manual usually includes the wiring mode for the different kind of air conditioner. We cannot exclude the possibility that some special type of wiring diagrams are not included. The diagram is for reference only. If the entity is difference with this wiring diagram, please refer to the detailed wiring diagram adhered on the unit which you purchased.

Vacuuming

★ Exclusive R32 refrigerant pump must be used in making R32 refrigerant vacuum.

Before working on the air conditioner, remove the cover of the stop valve (gas and liquid valves) and be sure to retighten it afterward (to prevent potential air leakage).

  1. To prevent air leakage and spilling, tighten all connecting nuts of all flare tubes.
  2. Connect the stop valve, charge hose, manifold valve, and vacuum pump.
  3. Fully open the handle Lo of the manifold valve and apply vacuum for at least 15 minutes and check that the compound vacuum gauge reads -0.1MPa (-76cmHg).
  4. After applying vacuum, fully open the stop valve with a hex wrench.
  5. Check that both indoor and outdoor connections are free of air leakage. [Illustration of vacuuming setup with compound meter, pressure gauge, manifold valve, stop valves, charge hose, vacuum pump].

IMPORTANT: The unit with the quick connectors does not require vacuum pumping.

Outdoor condensation drainage (Heat pump type only)

When the unit is heating, the condensing water and defrosting water can be out reliably through the drain hose.

Installation: Install the outdoor drain elbow in a Ø25 hole on the base plate, and joint the drain hose to the elbow, so that the waste water formed in the outdoor unit can be drained out to a proper plate. [Illustration of outdoor drain elbow installation].

Check after installation and test operation

Check after installation

Electrical Safety Check

  1. If the supply voltage is as required.
  2. If there is any faulty or miss connection in each of the power, signal, and grounding wires.
  3. If the grounding wire of the air conditioner is securely grounded.

Installation Safety Check

  1. If the installation is secure.
  2. If the water drain is smooth.
  3. If the wiring and piping are correctly installed.
  4. Check that no foreign matter or tools are left inside the unit.
  5. Check the refrigerant pipeline is protected well.

Leak test of the refrigerant

Depending on the installation method, the following methods may be used to check for suspect leak, on areas such as the four connections of the outdoor unit and the cores of the cut-off valves and t-valves:

  1. Bubble method: Apply a uniform layer of soap water over the suspected leak spot and observe carefully for bubbles.
  2. Instrument method: Checking for leak by pointing the probe of the leak detector according to the instruction to the suspect points of leak.

Note: Make sure that the ventilation is good before checking.

Test Operation

Test Operation preparation:

Note: Make sure that the ventilation is good before testing.

Test Operation method:

  1. Turn on the power and push the ON/OFF switch button of the remote controller to start the air conditioner.
  2. Select COOL, HEAT (not available on cool-only models), SWING and other operation modes with the remote controller and see if the operation is ok.

Maintenance Notice

Attention:

For maintenance or scrap, please contact authorized service centers. Maintenance by unqualified personnel may cause dangers. Feed air conditioner with R32 refrigerant, and maintain the air conditioner strictly in accordance with manufacturer's requirements. The chapter is mainly focused on special maintenance requirements for appliances with R32 refrigerant. Ask a repairer to read the after-sales technical service handbook for detailed information.

Qualification requirements of maintenance personnel

  1. Special training additional to usual refrigerating equipment repair procedures is required when equipment with flammable refrigerants is affected. In many countries, this training is carried out by national training organizations that are accredited to teach the relevant national competency standards that may be set in legislation. The achieved competence should be documented by a certificate.
  2. The maintenance and repair of the air conditioner must be conducted according to the method recommended by the manufacturer. If other professionals are needed to help maintain and repair the equipment, it should be conducted under the supervision of individuals who have the qualification to repair AC equipped with flammable refrigerant.

Inspection of the Site

Safety inspection must be taken before maintaining equipment with R32 refrigerant to make sure the risk of fire is minimized. Check whether the place is well ventilated, whether anti-static and fire prevention equipment is perfect. While maintaining the refrigeration system, observe the following precautions before operating the system.

Operating Procedures

  1. General work area: All maintenance staff and others working in the local area shall be instructed on the nature of the work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material.
  2. Checking for presence of refrigerant: The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially toxic or flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, i.e., non-sparking, adequately sealed, or intrinsically safe.
  3. Presence of fire extinguisher: If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
  4. No ignition sources: No person carrying out work in relation to a refrigeration system which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. 'No Smoking' signs shall be displayed.
  5. Ventilated Area (open the door and window): Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
  6. Checks to the refrigeration equipment: Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times, the manufacturer's maintenance and service guidelines shall be followed. If in doubt, consult the manufacturer's technical department for assistance. The following checks shall be applied to installations using flammable refrigerants:
    • The charge size is in accordance with the room size within which the refrigerant containing parts are installed.
    • The ventilation machinery and outlets are operating adequately and are not obstructed.
    • If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant.
    • Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.
  7. Checks to electrical devices: Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include:
    • That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking.
    • That no live electrical components and wiring are exposed while charging, recovering, or purging the system.
    • Keep continuity of earthing.

Inspection of Cable

Check the cable for wear, corrosion, overvoltage, vibration and check if there are sharp edges and other adverse effects in the surrounding environment. During the inspection, the impact of aging or the continuous vibration of the compressor and the fan on it should be taken into consideration.

Leakage check of R32 refrigerant

Note: Check the leakage of the refrigerant in an environment where there is no potential ignition source. No halogen probe (or any other detector that uses an open flame) should be used.

Leak detection method: For systems with refrigerant R32, electronic leak detection instruments are available to detect leaks and leak detection should not be conducted in an environment with refrigerant. Make sure the leak detector will not become a potential source of ignition, and is applicable to the measured refrigerant. Leak detector shall be set for the minimum ignitable fuel concentration (percentage) of the refrigerant. Calibrate and adjust to proper gas concentration (no more than 25%) with the used refrigerant.

The fluid used in leak detection is applicable to most refrigerants. But do not use chloride solvents to prevent the reaction between chlorine and refrigerants and the corrosion of copper pipeline.

If you suspect a leak, then remove all fire from the scene or put out the fire. If the location of the leak needs to be welded, then all refrigerants need to be recovered, or, isolate all refrigerants away from the leak site (using cut-off valve). Before and during the welding, use OFN to purify the entire system.

Removal and Vacuum Pumping

  1. Make sure there is no ignited fire source near the outlet of the vacuum pump and the ventilation is well.
  2. Allow the maintenance and other operations of the refrigeration circuit to be carried out according to the general procedure, but the following best operations that consider flammability are key. You should follow the following procedures:
    • Remove the refrigerant.
    • Decontaminate the pipeline by inert gases.
    • Evacuation.
    • Decontaminate the pipeline by inert gases again.
    • Cut or weld the pipeline.
  3. The refrigerant should be returned to the appropriate storage tank. The system should be blown with oxygen-free nitrogen to ensure safety. This process may need to be repeated for several times. This operation shall not be carried out using compressed air or oxygen.
  4. Through blowing process, the system is charged into the anaerobic nitrogen to reach the working pressure under the vacuum state, then the oxygen-free nitrogen is emitted to the atmosphere, and in the end, vacuumize the system. Repeat this process until all refrigerants in the system are cleared. After the final charging of the anaerobic nitrogen, discharge the gas into the atmosphere pressure, and then the system can be welded. This operation is necessary for welding the pipeline.

Procedures of Charging Refrigerants

As a supplement to the general procedure, the following requirements need to be added:

Scrap and Recovery

Scrap: Before this procedure, the technical personnel shall be thoroughly familiar with the equipment and all its features, and make a recommended practice for refrigerant safe recovery. For recycling the refrigerant, shall analyze the refrigerant and oil samples before operation. Ensure the required power before the test.

  1. Be familiar with the equipment and operation.
  2. Disconnect power supply.
  3. Before carrying out this process, you have to make sure:
    • If necessary, mechanical equipment operation should facilitate the operation of the refrigerant tank.
    • All personal protective equipment is effective and can be used correctly.
    • The whole recovery process should be carried out under the guidance of qualified personnel.
    • The recovering of equipment and storage tank should comply with the relevant national standards.
  4. If possible, the refrigerating system should be vacuumized.
  5. If the vacuum state can't be reached, you should extract the refrigerant in each part of the system from many places.
  6. Before the start of the recovery, you should ensure that the capacity of the storage tank is sufficient.
  7. Start and operate the recovery equipment according to the manufacturer's instructions.
  8. Don't fill the tank to its full capacity (the liquid injection volume does not exceed 80% of the tank volume).
  9. Even the duration is short, it must not exceed the maximum working pressure of the tank.
  10. After the completion of the tank filling and the end of the operation process, you should make sure that the tanks and equipment should be removed quickly and all closing valves in the equipment are closed.
  11. The recovered refrigerants are not allowed to be injected into another system before being purified and tested.

Note: The identification should be made after the appliance is scrapped and refrigerants are evacuated. The identification should contain the date and endorsement. Make sure the identification on the appliance can reflect the flammable refrigerants contained in this appliance.

Recovery:

  1. The clearance of refrigerants in the system is required when repairing or scrapping the appliance. It is recommended to completely remove the refrigerant.
  2. Only a special refrigerant tank can be used when loading the refrigerant into the storage tank. Make sure the capacity of the tank is appropriate to the refrigerant injection quantity in the entire system. All tanks intended to be used for the recovery of refrigerants should have a refrigerant identification (i.e., refrigerant recovery tank). Storage tanks should be equipped with pressure relief valves and globe valves and they should be in a good condition. If possible, empty tanks should be evacuated and maintained at room temperature before use.
  3. The recovery equipment should be kept in a good working condition and equipped with equipment operating instructions for easy access. The equipment should be suitable for the recovery of R32 refrigerants. Besides, there should be a qualified weighting apparatus which can be normally used. The hose should be linked with detachable connection joint of zero leakage rate and be kept in a good condition.
  4. Before using the recovery equipment, check if it is in a good condition and if it gets perfect maintenance. Check if electrical components are sealed to prevent the leakage of the refrigerant and the fire caused by it. If you have any question, please consult the manufacturer.
  5. The recovered refrigerant shall be loaded in the appropriate storage tanks, attached with a transporting instruction, and returned to the refrigerant manufacturer. Don't mix refrigerant in recovery equipment, especially a storage tank.
  6. The space loading R32 refrigeration can't be enclosed in the process of transportation. Take anti-electrostatic measures if necessary in transportation. In the process of transport, loading and unloading, necessary protective measures must be taken to protect the air conditioner to ensure that the air conditioner is not damaged.
  7. When removing the compressor or clearing the compressor oil, make sure the compressor is pumped to an appropriate level to ensure that there is no residual R32 refrigerants in the lubricating oil. The vacuum pumping should be carried out before the compressor is returned to the supplier. Ensure the safety when discharging oil from the system.

Remote controller instructions

Users can scan the following QR code to obtain instructions.

[QR Code for YKR-H/009E], [QR Code for YKR-H/501E], [QR Code for YKR-K/232E], [QR Code for YKR-T/031E], [QR Code for YK-T/031E], [QR Code for YKR-Q/051E]

[QR Code for YK-S/002E], [QR Code for YKR-S/001E], [QR Code for YKR-L/103E], [QR Code for YKR-L/201E], [QR Code for YKR-L/101E], [QR Code for YKR-H/133E]

[QR Code for YKR-K/001E], [QR Code for YKR-H/101E], [QR Code for YKR-H/531E], [QR Code for YKR-P/001E], [QR Code for YKR-T/011E], [QR Code for YKR-T/233E]

[QR Code for YKR-K/002E], [QR Code for YKR-H/102E], [QR Code for YR-H/531E], [QR Code for YKR-P/002E], [QR Code for YKR-T/012E]

[QR Code for YKR-H/132E], [QR Code for YK-M/003E], [QR Code for YKR-P/010E], [QR Code for YKR-T/021E]

[QR Code for YKR-P/020E], [QR Code for YKR-T/121E]

[QR Code for YKR-P/101E], [QR Code for YKR-T/051E]

[QR Code for YKR-P/102E], [QR Code for YKR-T/061E]

[Illustration of a remote control, with text 'model' and 'The model of the remote control is show on the back.']

NOTE: The model of the remote control is shown on the back.

WIFI instructions

Users can scan the following QR code to obtain Wifi operation instructions.

[QR Code for Android], [QR Code for iOS]

  1. This QR code is the instruction for using WIFI.
  2. Download the WIFI app through this QR code.

Note: Some models do not have this function, please subject to the actual purchase.

Costway Limited Warranty

Warranty Period:

  1. Standard Five (5) Year Parts Warranty: For a qualified system. Proof of defective parts must be made available to the Costway Distributor in exchange for the replacement part. Replacement parts are warranted for the remainder of this five-year warranty period.
  2. Additional Three (3) Year Compressor Part Warranty: The Compressor is warranted for an additional Three (3) year period after the end of the applicable Standard Part Warranty Period, so called "The Compressor Warranty". Proof of defective compressors must be made available to Costway or Costway Distributor in exchange for the replacement compressor. Replacement compressors are warranted for the remainder of this total eight-year warranty period, which is a combination of "Standard Part Warranty and Compressor Warranty".

This warranty period is not valid if the unit is moved from the original installation location.

This Limited Warranty is valid only in the United States and Canada (except non-delivery areas), and it is not transferable.

Warranty Details

  1. WARRANTY IS PROVIDED BY Costway MANUFACTURE.
  2. Warranty coverage begins on "original order date" or eighteen (18) months from the date of manufacture, whichever is the shorter duration.
  3. Manufacture date is noted on the unit name-plate.
  4. Others are responsible for all labor and refrigerant charges.
  5. Proof of purchase (original receipt) is required for all warranty repairs or service.

Warranty Exclusions

  1. THIS WARRANTY DOES NOT COVER: Labor or other costs incurred for diagnosing, repairing, removing, installing, shipping, servicing, or handling of either defective parts, replacement parts, or new units.
  2. Any cost to replace, refill, or dispose of refrigerant, including the cost of refrigerant.
  3. Electricity or fuel costs, or increases in electricity or fuel costs from any reason whatsoever, including additional or unusual use of supplemental electric heat.
  4. Consequential or other damage(s) caused by rust, brownouts, blackouts, oxidation, corrosion, water, water condition, freezing.
  5. This warranty does not apply to parts that fail as a direct result of environmental influences.
  6. This limited warranty does not cover failure due to accident, misuse, abuse, faulty installation, or adjustments to appliance controls required to adapt the appliance operation to the structure size, geographic location, or fuel supply adjustment to the heat anticipator on the thermostat. Company does not guarantee the temperature difference between the inside and outside of the structure. This limited warranty does not cover normal maintenance, such as filter replacement, fuses, etc.
  7. Failures to equipment or compressors due to incorrect refrigerants or unapproved additives used outside of manufacturer's recommendations or failures due to the improper use of metering devices (i.e., thermal expansion valves) are excluded from warranty coverage.
  8. Temporary heating or cooling units.
  9. Parts not supplied or designated by Company, or damages resulting from their use.
  10. Equipment must be installed per Company's installation instructions. Unauthorized equipment modifications including but not limited to changes in mechanical design, electrical design, airflow design, or refrigerant flow, void manufacturer's warranty.
  11. Units that are operated in an incomplete building envelope or to heat or cool the structure during construction.

Warranty Conditions

  1. This Company equipment and/or Company accessories must be installed by a licensed or otherwise qualified dealer or contractor, and must be installed in accordance with Company installation instructions and in compliance with local codes. Improper installation may endanger the occupants of the dwelling.
  2. This equipment must be operated in accordance with company operating instructions provided with each unit. The product must not be misused.
  3. The equipment's rating plate must not be removed or defaced.
  4. If the date of original order date cannot be verified, then the warranty period begins eighteen (18) months from the date of manufacture.
  5. The warranty applies only to products remaining in their original installation location.
  6. Correct consumer contact information is a warranty claim requirement including: original order number, consumer name, address, and phone number. THERE ARE NO OTHER EXPRESS WARRANTIES, EXCEPT AS SET FORTH ABOVE.

Any implied warranties of merchantability or fitness of any purpose relating to the parts of the unit shall terminate on the termination dates of the corresponding express warranties covering said parts. However, some states do not allow limitations on how long an implied warranty lasts and/or the excluding or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This limited warranty gives specific legal rights, and you may also have other rights which may vary from state to state.

Instructions to the Owner for Service

  1. To obtain warranty service, you are required to show the servicer a bill of sale for the equipment or other evidence of purchase to establish the original date of purchase and proof of ownership. If you suspect a defect in your equipment is in need of service, please contact the installer of the unit to obtain assistance. If unsuccessful, please contact Costway or a Costway Distributor in your area.
  2. Any claim regarding this warranty must be made within 30 days after the occurrence of a problem with the equipment.
  3. For more information about the warranty, email us at service@costway.com (USA) / cs.ca@costway.com (Canada).

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