Costway J-Smart Mini Split Air Conditioner User Manual

Table of Contents

• Operation and Maintenance
• Installation Service
• Electronic Manual

Operation and Maintenance

Warning

This air conditioner uses R32 flammable refrigerant. Handle with care to avoid harm to people or surroundings. Ensure adequate room space (greater than 5m²) for installation, use, repair, and storage. Do not exceed the refrigerant charge limit of 1.7kg. Never pierce or burn the unit. Store in a room without ignition sources. Read instructions carefully before use.

Symbol Explanations:

• A2L WARNING: Indicates a flammable refrigerant, posing a fire risk if leaked and exposed to an ignition source.
• WARNING: Indicates a flammable refrigerant, posing a fire risk if leaked and exposed to an ignition source.
• WARNING: Indicates a low burning velocity material.
• CAUTION: Read the operation manual carefully.
• CAUTION: Service personnel should handle equipment with reference to the installation manual.
• CAUTION: Information is available in the operating or installation manual.

Safety Precautions

Incorrect installation or operation can cause harm or damage. Warnings are classified by:

• WARNING: Indicates the possibility of death or serious injury.
• CAUTION: Indicates the possibility of injury or damage to properties.

General Safety Guidelines:

• Children aged 8 and above, and persons with reduced capabilities, can use the appliance under supervision.
• Ensure the appliance is properly grounded. Incomplete grounding may result in electric shocks. Do not connect the earth wire to gas, water, lightning, or telephone lines.
• Always switch off the device and cut the power supply when not in use.
• Take care not to let the remote control and indoor unit get wet.
• If the supply cord is damaged, it must be replaced by the manufacturer or qualified personnel.
• Do not cut off the main power switch with wet hands.
• Do not share the socket with other electric appliances.
• Always switch off the device and cut the power supply before maintenance or cleaning.
• Do not pull the power cable.
• Ensure ducts connected to the appliance do not contain an ignition source.
• Do not install in places with flammable gas or liquid; maintain a distance of over 1m.
• Do not use in lightning storm weather.
• Do not use liquid or corrosive cleaning agents.
• Do not attempt to repair the unit yourself; contact a qualified service technician.
• Do not put hands or objects into air inlets or outlets.
• Ensure the installed stand is firm.
• Do not block air inlets or outlets.
• Do not let the air conditioner blow against the heater appliance.
• The appliance must be installed according to national wiring regulations.
• An earth leakage breaker with rated capacity must be installed.

Environmental Considerations:

• This product contains fluorinated greenhouse gases that contribute to climate change.
• Ensure no microwaves, ovens, computers, or frequently plugged sockets are placed under the indoor unit.
• Joints between indoor and outdoor units should not be reused without re-flaring.
• Fuse specifications are typically 3.15A/250V AC.

WEEE Warning:

Do not dispose of electrical appliances as unsorted municipal waste. Use separate collection facilities. Contact your local government for collection systems. Improper disposal can lead to hazardous substances entering the environment.

Usage Precautions:

• Do not open windows and doors for long periods while the unit is running.
• Do not stand on or place heavy objects on the outdoor unit.
• Do not use the air conditioner for purposes like drying clothes or preserving food.
• Avoid direct cold air exposure for extended periods.
• Set the temperature appropriately to prevent waste of electricity. The temperature difference between indoor and outdoor should not be too large.
• If the unit is not fitted with a supply cord and plug, an anti-explosion all-pole switch must be installed in the fixed wiring.
• For permanently connected units, an RCD with a rated residual operating current not exceeding 30 mA should be installed.
• The power supply circuit should have a leakage protector and an air switch with a capacity 1.5 times the maximum current.

Notices for Usage

Conditions for Normal Operation:

Notes on Operation:

• The unit may shut down automatically if the temperature is too high or too low.
• Freezing of the heat exchanger can occur at low temperatures, leading to water dripping.
• High humidity (above 80%) with open doors/windows may cause condensation.
• T1 and T3 refer to ISO 5151.

Notes for Heating:

• The indoor fan may not operate immediately during heating to prevent blowing cool air.
• Frost may form on the outdoor heat exchanger in cold, wet conditions, triggering a defrost function (5-12 minutes). Vapor may be emitted during defrost.

Notes for Turning Off:

• The unit may automatically adjust fan speed and frequency when turned off.

Emergency Operation:

• Use the force switch button if the remote controller is lost or broken.
• Pressing the force switch with the unit OFF activates Auto mode.
• Pressing the force switch with the unit ON stops the unit.

Airflow Direction Adjustment:

• Use remote control buttons for up-down and left-right swing.
• For models without left-right swing, adjust the air vent manually.
• Move air vents only when the unit is off to avoid injury. Never place hands in air inlets or outlets during operation.

Specific Caution:

• Open the indoor unit's front panel. Ensure the connector does not touch the terminal board.

Names of Each Part

Indoor Unit:

• Fig A & Fig B: Show different configurations of the indoor unit, including air inlet grille, panel, air filter, air louver, air vent, air outlet, force switch, and pipe protection ring.

Outdoor Unit:

• Includes air inlet, air outlet, air outlet grille, power cable, connecting pipe, drain hose, and pipe protection ring.

Note: Illustrations are for explanation only. Actual units may vary. Optional features include Plug, WIFI, Negative-ion, and swing functions.

Clean and Care

WARNING:

• Shut down and cut off power for at least 5 minutes before cleaning to avoid electric shock.
• Do not wet the air conditioner.
• Use a soft dry cloth or a damp cloth with neutral detergent for cleaning. Avoid volatile liquids like thinner or gasoline.
• Clean the air filter regularly to maintain performance.
• Do not touch the fin part of the indoor unit or damage the refrigerant pipeline when removing the filter.

Cleaning the Panel:

• Clean the indoor unit panel with a wrung towel using tepid water (below 40°C). Do not remove the panel.

Cleaning the Air Filter:

• Remove Filter: Open the panel and release the filter from the slot.
• Clean Filter: Use a vacuum cleaner or water. For greasy dirt, use warm water (below 45°C) with mild detergent. Dry in the shade.

Mount the Filter:

• Reinstall the dried filter in reverse order of removal and lock the panel.

Check Before Using:

• Check air inlets/outlets for blockages.
• Check drain pipe for blockages.
• Ensure the ground wire is properly grounded.
• Check remote control batteries and power.
• Check the outdoor unit mounting bracket for damage.

Maintain After Using:

• Cut off power and remove remote control batteries.
• Clean the filter and unit body.
• Remove dust and debris from the outdoor unit.
• Check the outdoor unit mounting bracket for damage.

Troubleshooting

CAUTION: Do not attempt self-repair. Contact an authorized service center.

Contact Service Center Immediately If:

• Harsh sound or odor is detected.
• Power cable or plug is abnormally hot.
• Unit or remote controller has impurity or water.
• Air switch or leakage protection switch is frequently disconnected.

Installation Service

Important Notices

• Contact a local authorized maintenance center for installation.
• Installation must be performed by professionals according to national wiring rules and this manual.
• Refrigerant leak test is mandatory after installation.
• Contact a local special service center for moving or re-installing the unit.

Unpacking Inspection

• Unpack in a well-ventilated area away from ignition sources.
• Operators should wear anti-static devices.
• Professionals must check for refrigerant leakage before opening the outdoor unit.
• Prepare fire prevention equipment and anti-static precautions.
• Check refrigerant pipelines for damage.

Safety Principles for Installing Air Conditioner

• Prepare a fire prevention device.
• Ensure the installation site is well-ventilated.
• No ignition sources, smoking, or calling are allowed where R32 refrigerant is present.
• Use anti-static precautions (e.g., cotton clothes and gloves).
• Use a leak detector during installation.
• If R32 refrigerant leakage occurs, detect concentration and stop operation if performance is affected. Vacuum the unit and return it for processing.
• Keep electrical appliances, heat sources, and static sources away from the indoor unit's sidelines.
• Install in an accessible location, free from obstacles to air inlets/outlets, and away from heat sources or explosive conditions.
• Connecting lines must be of the original specification; extension is not allowed.
• Use new connection pipes unless re-flaring.

Requirements For Installation Position

• Avoid places with flammable/explosive gas or aggressive gases.
• Avoid areas with strong artificial electric/magnetic fields.
• Avoid noisy or resonant places.
• Avoid severe natural conditions (e.g., heavy lampblack, sandy wind, direct sunshine).
• Avoid places within reach of children.
• Shorten the connection between indoor and outdoor units.
• Select a location easy for service and with good ventilation.
• Do not install the outdoor unit in aisles, stairways, exits, or fire escapes.
• Install the outdoor unit away from neighbors' doors/windows and green plants.

Installation Environment Inspection

• Check the outdoor unit nameplate for R32 refrigerant.
• Ensure room space is at least 5m².
• Check surrounding environment for R32 installation; avoid enclosed spaces.
• When drilling walls, check for pre-buried pipelines. Use reserved holes in the roof if possible.

Requirements of the Mounting Structure

• Mounting racks must meet national/industrial standards and be rustproofed.
• Mounting racks must withstand 4 times the unit's weight or 200kg, whichever is heavier.
• Fasten outdoor unit mounting racks with expansion bolts for secure installation.

Electrical Safety Requirements

• Use the rated voltage and a dedicated circuit for the power supply. Power cable diameter must meet national requirements.
• For maximum current ≥ 16A, use an air switch or leakage protection switch.
• Operating range is 90%-110% of rated voltage. Address voltage instability if necessary.
• Minimum clearance from combustibles is 1.5m.
• Choose the correct interconnection cord size.
• Supply cords for outdoor use should be 1.5-3m long and rated EXTRA HARD USAGE or HARD USAGE.
• Cable types: Outdoor Power Cable: H07RN-F or H05RN-F; Interconnection cord: H07RN-F or H05RN-F.
• Refer to the table for Minimum Cross-Sectional Area of Power cable and interconnection cord based on region and appliance current.
• Determine required cable, fuse, and switch size based on the unit's maximum current indicated on the nameplate.
• Disconnection means must be incorporated in fixed wiring per regulations.

Installation for indoor unit

Dimension drawing of indoor unit installation:

• Provide specified clearances: 20cm to walls, 15cm to ceiling, space to the floor.

Mounting plate:

• Install on a hard, firm wall to prevent vibration.
• Use screws to fasten the mounting plate horizontally and vertically.
• Check the plate's solidity after installation.

Wall-through Hole:

• Drill a hole (60mm-80mm) slanted outwards by 5°-10°.
• Install a pipe protecting ring and seal with putty to protect piping and cables.
• Avoid pre-buried wires and hard walls when drilling.

Route of Pipeline:

• Route piping sideways or vertically depending on unit position. Cut off outlet cutting stock if routing sideways.

Install the connection pipe:

• Remove the fixed part, screw the hexagon nut, and connect the pipe.
• Tighten the Taper nut with fingers, then with a torque wrench. Refer to the table for torque values.
• Do not reuse joints without re-flaring.
• For units with quick connectors, refer to the separate booklet.

Wrap the Piping:

• Use insulation sleeve and material to pack and seal the joint part.
• Connect water outlet with drain pipes.
• Use plastic cable ties to secure pipes, cables, and drain hose. Ensure pipes slope downwards.

Fixing the Indoor Unit:

• Hang the indoor unit on the mounting plate, ensuring proper hook positioning.
• Push the unit until the hook is embedded and makes a "click" sound.

Interconnection cord installation:

• Open the panel, remove the wiring cover.
• Route the interconnection cord through the back hole and pull it out from the front.
• Connect the cord to the wiring terminal according to the wiring diagram.
• Replace the wiring cover and tighten the screw. Close the panel.
• After installation check: Ensure screws are tight, display board connector is in place, and control box cover is secure.

Installation for outdoor unit

Dimension drawing of outdoor unit installation:

• Maintain specified clearances: 50cm above, 30cm to obstructions, 10cm to obstructions, 20cm to air outlet.
• Refer to the table for Outdoor Unit Size of Shape and corresponding bolt dimensions (A and B).

Install the connection pipe:

• Aim the connecting pipe at the stop valve and tighten the Taper nut.
• When changing connecting pipe length, adjust refrigerant amount accordingly.
• Refer to the table for added or reduced refrigerant based on connection pipe length.
• Do not reuse joints without re-flaring.
• Check stop valve cover after installation.
• For units with quick connectors, refer to the separate booklet.

Wiring Connection:

• Loosen screws and remove the E-parts cover.
• Connect cables to the terminal board according to the wiring diagram.
• Connect the grounding wire to the grounding screw.
• Secure cables with fasteners.
• Replace the E-parts cover.

Wiring diagram:

• Provides diagrams for constant speed and variable speed connections for both indoor and outdoor units.
• If a connector is present, connect it directly.

Vacuuming:

• Use an exclusive R32 refrigerant pump.
• Remove stop valve covers and retighten.
• Connect stop valve, charge hose, manifold valve, and vacuum pump.
• Fully open the Lo handle and vacuum for at least 15 minutes. Check gauge reading (-0.1MPa/-76cmHg).
• Fully open the stop valve with a hex wrench.
• Check connections for air leakage.
• Units with quick connectors do not require vacuum pumping.

Outdoor condensation drainage (Heat pump type only):

• Install the outdoor drain elbow in the base plate and connect the drain hose to direct condensate and defrosting water.

Check after installation and test operation

Check after installation

• Electrical Safety Check: Verify supply voltage, connections of power, signal, and grounding wires. Ensure secure grounding.
• Installation Safety Check: Confirm secure installation, smooth water drain, correct wiring/piping, absence of foreign matter, and protected refrigerant pipeline.

Leak test of the refrigerant

• Bubble method: Apply soap water to suspected leak spots and observe for bubbles.
• Instrument method: Use a leak detector probe according to its instructions.
• Ensure good ventilation before checking.

Test Operation

Test Operation preparation:

• Verify piping and connection cables are well connected.
• Confirm gas and liquid side valves are fully open.
• Connect the power cable to an independent socket.
• Install batteries in the remote control.
• Ensure good ventilation before testing.

Test Operation method:

• Turn on power and use the remote controller's ON/OFF switch to start the air conditioner.
• Select COOL, HEAT, SWING, and other modes to check operation.

Maintenance Notice

Attention:

• Contact authorized service centers for maintenance or scrap. Maintenance by unqualified persons is dangerous.
• Maintain the air conditioner strictly according to manufacturer's requirements, especially for R32 refrigerant.

Qualification requirements of maintenance personnel

• Special training is required for handling flammable refrigerants.
• Maintenance and repair must follow manufacturer's recommendations, preferably under supervision of qualified individuals.

Inspection of the Site

• Perform safety inspection before maintenance to minimize fire risk.
• Check ventilation, anti-static, and fire prevention equipment.
• Observe precautions before operating the refrigeration system.

Operating Procedures

1. General work area: Instruct staff on work nature, avoid confined spaces, section off the area, and ensure safety regarding flammable materials.
2. Checking for presence of refrigerant: Use a refrigerant detector. Ensure leak detection equipment is suitable and non-sparking.
3. Presence of fire extinguisher: Have appropriate fire extinguishing equipment (dry powder or CO2) readily available for hot work.
4. No ignition sources: Prohibit ignition sources (including smoking) near pipe work. Survey the area for flammable hazards. Display "No Smoking" signs.
5. Ventilated Area: Ensure adequate ventilation during work to disperse any released refrigerant.
6. Checks to the refrigeration equipment: Ensure electrical components are correct. Follow manufacturer's guidelines. Check charge size, ventilation, secondary circuit (if indirect), and pipe/component resistance to corrosion.
7. Checks to electrical devices: Perform initial safety checks. Do not connect electrical supply if a fault compromises safety. Use temporary solutions if necessary and report to the owner. Ensure capacitors are discharged, no live components are exposed, and earthing continuity is maintained.

Inspection of Cable

• Check cables for wear, corrosion, overvoltage, vibration, sharp edges, aging, and compressor/fan vibration impact.

Leakage check of R32 refrigerant

• Perform checks in an environment with no potential ignition sources. Do not use halogen probes.
• Use electronic leak detection instruments. Ensure the detector is not a source of ignition and is suitable for R32. Set leak detector for minimum ignitable fuel concentration.
• Avoid chloride solvents to prevent reaction with refrigerants and pipeline corrosion.
• If a leak is suspected, remove ignition sources. Recover refrigerants or isolate the leak site before welding. Use OFN to purify the system during welding.

Removal and Vacuum Pumping

• Ensure no ignition sources near the vacuum pump outlet and good ventilation.
• Follow procedures for refrigerant removal, decontamination with inert gases, evacuation, and re-decontamination.
• Return refrigerant to the appropriate storage tank. Blow the system with oxygen-free nitrogen for safety. Avoid compressed air or oxygen.
• Charge the system with anaerobic nitrogen to working pressure under vacuum, then release nitrogen. Repeat until refrigerants are cleared.

Procedures of Charging Refrigerants

• Ensure no contamination among refrigerants when using charging devices.
• Keep pipelines short.
• Store tanks vertically.
• Ensure grounding solutions are in place before charging.
• Label the system after charging.
• Do not overcharge.

Scrap and Recovery

• Familiarize yourself with the equipment and refrigerant safe recovery practices. Analyze refrigerant and oil samples.
• Disconnect power supply.
• Ensure mechanical equipment facilitates refrigerant tank operation. Use appropriate personal protective equipment. Conduct recovery under qualified personnel guidance. Comply with national standards for equipment and storage tanks.
• Vacuumize the refrigerating system if possible. Extract refrigerant from multiple places if vacuum state cannot be reached.
• Ensure storage tank capacity is sufficient.
• Operate recovery equipment per manufacturer's instructions.
• Do not fill tanks beyond 80% capacity. Do not exceed the tank's maximum working pressure.
• Close all valves after operation.
• Recovered refrigerants must be purified and tested before reuse.
• Identification of scrapped appliances should include date and endorsement reflecting flammable refrigerants.
• Recovery: Remove refrigerant completely. Use only special refrigerant tanks. Ensure tank capacity and condition. Recovery equipment should be in good working order and suitable for R32. Use a qualified weighting apparatus. Check hoses for leakage. Check electrical components are sealed. Consult manufacturer if needed.
• Load recovered refrigerant into appropriate storage tanks with transporting instructions. Do not mix refrigerants.
• Transport R32 refrigeration in enclosed spaces, taking anti-static measures. Protect the unit during transport.
• When removing the compressor, ensure it is pumped to an appropriate level to remove residual R32. Vacuum pump before returning the compressor. Ensure safety when discharging oil.

Electronic Manual

Remote controller instructions

Users can scan QR codes to obtain instructions for various remote controller models (e.g., YKR-H/009E, YKR-Q/001E, etc.). The model of the remote control is shown on the back.

WIFI instructions

Users can scan QR codes to obtain Wifi operation instructions. Download the WIFI app through the provided QR codes for Android and iOS. Note: Some models may not have this function.

Costway Limited Warranty

Warranty Period:

• Standard Five (5) Year Parts Warranty.
• Additional Three (3) Year Compressor Part Warranty (total eight years).
• Warranty is void if the unit is moved from the original installation location.
• Valid only in the United States and Canada (except non-delivery areas). Not transferable.

Warranty Details:

• Warranty provided by Costway Manufacture.
• Coverage begins on original order date or 18 months from manufacture date, whichever is shorter.
• Manufacture date is noted on the unit name-plate.
• Labor and refrigerant charges are the responsibility of others.
• Proof of purchase (original receipt) is required for warranty repairs.

Warranty Exclusions:

• Labor or costs for diagnosing, repairing, removing, installing, shipping, servicing, or handling parts or units.
• Cost to replace, refill, or dispose of refrigerant.
• Electricity or fuel costs, or increases thereof.
• Consequential or other damages (rust, brownouts, blackouts, oxidation, corrosion, water, freezing).
• Parts failure due to environmental influences.
• Failure due to accident, misuse, abuse, faulty installation, or adjustments to controls.
• Normal maintenance items (filters, fuses).
• Failures due to incorrect refrigerants or unapproved additives, or improper use of metering devices.
• Temporary heating or cooling units.
• Parts not supplied or designated by Costway.
• Equipment not installed per Costway's instructions; unauthorized modifications void the warranty.
• Units operated in incomplete building envelopes or during construction.

Warranty Conditions:

• Equipment must be installed by a licensed professional according to instructions and local codes.
• Operate the unit according to company instructions; do not misuse.
• The equipment's rating plate must not be removed or defaced.
• If the original order date cannot be verified, the warranty period begins 18 months from the manufacture date.
• Warranty applies only to products remaining in their original installation location.
• Warranty claim requires correct consumer contact information (order number, name, address, phone number).
• No other express warranties exist.
• Implied warranties are limited to the express warranty period.
• This limited warranty provides specific legal rights; other rights may vary by state.

Instructions to the Owner for Service:

• To obtain warranty service, provide a bill of sale or proof of purchase. Contact the installer first; if unsuccessful, contact Costway or a Costway Distributor.
• Claims must be made within 30 days of the problem's occurrence.
• For more information, email service@costway.com (USA) or cs.ca@costway.com (Canada).