Panasonic CU-UV18WKF-4 Air Conditioner Instruction Manual

Panasonic CU-UV18WKF-4 Air Conditioner

Quick guide

Inserting the batteries
G) Pull out the back cover of remote control @ Insert AAA or R03 batteries (can be used~ 1 year)
@ Close the cover

Basic operation

Select the desired temperature

•  Selection range: 16 °C- 28 °C.
•  Operating the unit within the recommended temperature may save energy: 26 °C- 28 °c.
• Use remote control within 8 m from the remote control receiver of the indoor unit.

The illustrations in this manual are for explanation purposes only and may differ from the actual unit. They are subject to change without notice for future improvement.

Safety precautions

To prevent personal injury, injury to others, or property damage, please comply with the following: Incorrect operation due to failure to follow instructions below may cause harm or damage, the seriousness of which is classified as below:

WARNING:
This sign warns of death or serious injury. This sign warns of injury or damage to property.

The instructions to be followed are classified by the following symbols:

WARNING:
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 the 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. Please consult an authorized dealer or specialist to clean the internal parts, repair, install, remove and reinstall the unit. Improper installation and handling will cause leakage, electric shock, or fire.

• Confirm with authorized dealer or specialist on the usage of any specified refrigerant type.
• Using refrigerant types other than the specified may cause product damage, burst, injury, etc.
• Do not install the unit in a potentially explosive or flammable atmosphere. Failure to do so could result in fire.
• Do not insert your fingers or other objects
• into the air conditioner indoor or outdoor
• unit, rotating parts may cause injury.
• Do not touch the outdoor unit during lightning, it may cause electric shock.
• Do not expose yourself directly to cold air for a long period to avoid excess cooling.
• Do not sit or step on the unit, you may fall down accidentally.

Remote control

Do not allow infants and small children to play with the remote control to prevent them from accidentally swallowing the batteries.

Power supply

• (S) Do not use a modified cord,
•  Do not share the same power outlet with other equipment.
•  Do not operate with wet hands.
•  Do not over-bend the power supply cord.
•  Do not operate or stop the unit by inserting or pulling out the power plug.
• Use a complete power supply cord without joining. In unavoidable circumstances that completing power supply cord without joining is impossible, use an approved connection means (for

If the supply cord is damaged, it must be replaced by the manufacturer, service agent or similarly qualified persons in order to avoid a hazard.
It is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD) to prevent electric shock or fire.
To prevent overheating, fire or electric shock:

•  Insert the power plug properly.
•  Dust on the power plug should be periodically wiped with a dry cloth.
• Stop using the product if any abnormality/failure occurs and disconnect the power plug or turn off the power switch and breaker.
• (Risk of smoke/fire/electric shock) Examples of abnormality/failure
•  The ELCB trips frequently.
•  A burning smell is observed.
•  Abnormal noise or vibration of the unit is observed.
•  Water leaks from the indoor unit.
•  The power cord or plug becomes abnormally hot.
•  Fan speed cannot be controlled.
•  The unit stops running immediately even if it is switched on for operation.
•  The fan does not stop even if the operation is stopped.
• Contact your local dealer immediately for maintenance/repair.

Indoor unit and outdoor unit

• Do not wash the indoor unit with water, benzine, thinner or scouring powder to avoid damage or corrosion at the unit.
• Do not use for preservation of precise equipment, food, animals, plants, artwork or other objects. This may cause quality deterioration, etc.
• Do not use any combustible equipment in front of the airflow outlet to avoid fire propagation.
• Do not expose plants or pet directly to airflow to avoid injury, etc.
• Do not touch the sharp aluminium fin, sharp parts may cause injury.
• Do not switch ON the indoor unit when waxing the floor. After waxing, aerate the room properly before operating the unit.
• Do not install the unit in oily and smoky areas to prevent damage to the unit.
• Do not dismantle the unit for cleaning purpose to avoid injury.
• Do not step onto an unstable bench when cleaning the unit to avoid injury.
• Do not place a vase or water container on the unit. Water may enter the unit and degrade the insulation. This may cause an electric shock.
• Do not open window or door for long time during COOUDRY mode operation.
•  Connected properly,
•  Kept clear of gutters and containers, or
•  Not immersed in water
• After a long period of use or use with any combustible equipment, aerate the room regularly.
• After a long period of use, make sure the installation rack does not deteriorate to prevent the unit from falling down.

Remote control

Do not use rechargeable (Ni-Cd) batteries. It may \Y damage the remote control.
• Remove the batteries if the unit is not going to be used for a long period of time.
• New batteries of the same type must be inserted following the polarity stated.

Power supply

Do not disconnect the plug by pulling the cord to \Y to prevent electric shock.

INSTALLATION MANUAL—Selecting the Installation Place

INDOOR UNIT
Install the indoor unit on a strong wall that is not subject to vibrations.

• The inlet and outlet ports should not be obstructed: the air should be able to blow all over the room.
• Do not install the unit near a source of heat, steam,or flammable gas.
•  Install the unit near an electric socket or private circuit. Do not install the unit where it will be exposed to direct sunlight.
• Select a site where the condensed water can be easily drained out, and where it is easily connected to the outdoor unit.
• Check the machine operation regularly and reserve the necessary spaces as shown in the picture.
• Select a place where the filter can be easily taken out.

OUTDOOR UNIT

• Do not install the outdoor unit near sources of heat, steam or flammable gas.
• Do not install the unit in too windy or dusty places.
•  Do not install the unit where people often pass. Select a place where the air discharge and operating sound will not disturb the neighbors.
•  Avoid installing the unit where it will be exposed to direct sunlight ( otherwise use a protection, if necessary, that should not interfere with the air flow).
•  Reserve the spaces as shown in the picture for the air to circulate freely.
•  Install the outdoor unit in a safe and solid place.
•  If the outdoor unit is subject to vibration, place rubber gaskets onto the feet of the unit..

installation

minimum space to be reserved (mm) shown in the picture

um indoBefore starting the installation, decide o on the account position the of minim­the & Do wet not room install such as your an air bathroom conditioner or in laundry a, etc /1\ The above the installation floor site should be 250cm or more

Installation of the mounting plate

•  Drill plate; Always 32 mount mm the deep rear holes panel in the horizon
• tally wall to and fix the vertically Insert the plastic anchors into the hole;
• Fix the rear panel on the anel wall has with been fixed provided firmly tapping enough screwsto
• Be sure withstand that the weight rear p

Note: The shape of the mounting plate may be different from the one above, but the installation method is similar

Drilling a hole in the wall for the piping

Make Insert downward the slant piping piping-hole to hole the ( <D sleeve outdoor 55) in into the side. the wall hole at to a slightpreve ring from being damaged nt when the
Note: Keep the drainpipe down towards the direction of the wall hole, otherwise leakage may occur.

Electrical connections—Indoor unit

•  Take Open removing the off the front screw cover panel. or as breaking indicated the in hooks). the picture ( by on For the right electrical part of the connections, unit under see the front
• circuit panel. diagram
• Connect the cable wires to the screw terminals by the following electric power numbering input (see,Use name wire plate size on the suitable unit)to and requirements. according to all current
• national safety codes, The must be cable suitable for connecting for outdoor use. outdoor and indoor units The plug een must install be so accessible that it can also be after pulled them out if the appliance nece­ an authorized Service Centre. ced by Note: Optional the wires can been connected to the main PCB of the indoor unit by the manufacturer according to the model without terminal block.

Refrigerant piping connection

The piping can be run in the 3 directions indicated by the numbers in the picture. When the piping is run in directions 1 or3, cut a notch along the groove on the side of the indoor unit with a cutter.
Run the piping in the direction of the wall hole and bind the copper pipes, the drainpipe, and the power cables together with the tape with the drainpipe at the bottom, so that water can flow freely.

•  Do not remove the cap from the pipe until connecting it, to avoid dampness or dirt from entering.
•  If the pipe is bent or pulled too often, it will become stiff. Do not bend the pipe more than three times at one point.
•  When extending the rolled pipe, straighten the pipe by unwinding it gently as shown in the picture.

Connections to the indoor unit

1.  Remove the indoor unit pipe cap ( check that there is no debris inside).
2.  Insert the fare nut and create a flange at the extreme end of the connection pipe.
3.  Tighten the connections by using two wrenches working in opposite directions

Indoor unit condensed water drainage

The indoor unit condensed water drainage is fundamen­tal for the success of the installation.

1.  Place the drain hose below the piping, taking care not to create siphons.
2.  The drain hose must slant downwards to aid drainage.
3.  Do not bend the drain hose or leave it protruding or twisted and do not put the end of it in water. If an extension is connected to the drain hose, ensure that it is lagged when it passes into the indoor unit.
4.  If the piping is installed to the right, the pipes, power cable, and drain hose must be lagged and secured onto the rear of the unit with a pipe connection.
5.  Insert the pipe connection into the relative slot.
6.  Press to join the pipe connection to the base.

INSTALLATION OF THE INDOOR UNIT
After having connected the pipe according to the instruc­tions, install the connection cables. Now install the drain pipe. After connection,lag the pipe, cables and drain pipe with the insulating material.

1.  Arrange the pipes, cables, and drain hose well.
2. Lag the pipe joints with insulating material, securing them with vinyl tape.
3. Run the bound pipe, Cables and drain pipe through the wall hole and mount the indoor unit onto the upper part of the mounting plate securely.
4.  Press and push the lower part of the indoor unit tightly

• Panasonic CU-UV18WKF-4 Air Conditioner FIG 15
• The following procedure must be observed before co­nnecting the pipes and connecting cables: decide which is the best position on the wall and leave enough space to be able to carry out maintenance easily. Fasten the support to the wall using screw anchors which are particularly suited to the type of wall;
•  Use a larger quantity of screw anchors than normally required for the weight they have to bear to avoid vibration during operation and remain fastened in the same position for years without the screws becoming loose.
•  The unit must be installed following the national regulations.

Outdoor unit condensed water drainage

• (only for heat pump models) The condensed water and the ice formed in the outdoor unit during heating operation can be drained away thro­ugh the drain pipe
• Fasten the drain port in the 25mm hole placed in the part of the unit as shown in the picture.
• Connect the drain port and the drain pipe.
• Pay attention that water is drained in a suitable place.

ELECTRICAL CONNECTIONS

1.  Remove the handle on the right side plate of the outdoor unit.
2.  Connect the power connection cord to the terminal board. Wiring should fit that of the indoor unit.
3.  Fix the power connection cord with a wire clamp.
4.  Confirm if the wire has been fixed properly.
5.  An efficient earth connection must be ensured.
6.  Recover the handle.

installation of the outdoor unit

CONNECTING THE PIPES
Screw the flare nuts to the outdoor unit coupling with the same tightening procedures described for the indoor unit.
To avoid leakage, pay attention to the following points:

1.  Tighten the flare nuts using two wrenches. Pay atten­tion not to damage the pipes.
2.  If the tightening torque is not sufficient, there will probably be some leakage. With excessive tightening torque there will also be some leakage, as the flange could be damaged.
3.  The surest system consists in tightening the connecti­on by using a fixed wrench and a torque wrench: in this case, use the table on page 23.

BLEEDING

Air and humidity left inside the refrigerant circuit can cause compressor malfunction. After having connected the indoor and outdoor units, bleed the air and humidity from the refrigerant circuit by using a vacuum pump.

The air and humidity left inside the refrigerant circulat­ion can cause compressor malfunction. After having co­nnected the indoor and outdoor units, bleed the air and humidity from the refrigerant circulation using a va­cuum pump.

1.  Unscrew and remove the caps from the 2 – way and 3- way valves.
2.  Unscrew and remove the cap from the service port.
3.  Connect the vacuum pump hose to the service port.
4.  Operate the vacuum pump for 10 – 15 minutes until an absolute vacuum of 10 mm Hg has been reached.
5.  With the vacuum pump still in operation, close the low-pressure knob on the vacuum pump coupling. Stop the vacuum pump.
6.  Open the 2 – way valve by 1/4 turn and then close it after! 0 seconds. Check all the joints for leaks using liquid soap or an electronic leak device.
7.  Turn the body of the 2-way and 3-way valves. Disconnect the vacuum pump hose.
8.  Replace and tighten all the caps on the valves.

operation test

1. Wind insulating covering around the joints of the ind­oor unit and fix it with insulating tape.
2. Fix the exceeding part of the signal cable to the piping or to the outdoor unit.
3.  Fix the piping to the wall ( after having coated it with insulating tape) using clamps or insert them into pla­stic slots.
4.  Seal the hole in the wall through which the piping is passed so that no air or water can fill.

Indoor unit test

•  Do the ON/OFF and FAN operate normally?
•  Does the MODE operate normally?
•  Do the setpoint and TIMER function properly?
•  Does each lamp light normally?
•  Does the flap for airflow direction operate normally?
•  Is the condensed water drained regularly?

Outdoor unit test

•  Is there any abnormal noise or vibration during operation?
• Could the noise , the airflow, or the condensed water drainage disturb the neighbors?
•  Is there any coolant leakage?
  Note: the electronic controller allows the compressor to start only three minutes after the voltage has reached the system.

information for the installer

( 1) Refer to the data rating label stuck on the outdoor unit.
TIGHTENING TORQUE FOR PROTECTION CAPS AND FLANGE CONNECTION

WIRING DIAGRAM

• For different models, the wiring diagram may be different. Please refer to the wiring diagrams posted on the indoor unit and outdoor unit respectively.
• On the indoor unit, the wiring diagram is pasted under the front panel;
• On the outdoor unit, the wiring diagram is pasted on the backside of the outdoor handle cover.

CABLE WIRES SPECIFICATION

• lOV 7K, 9K 12k air conditioner indoor unit fuse parameter is SOT, 3.
• lSA, 12SV 7K, 9K, 12K air conditioner outdoor unit fuse parameter is 61 T, ISA 2SOV 18K, 22K,
• 24K air conditioner outdoor unit fuse parameter is 6STS, 2SA

MAINTENANCE

Periodic maintenance is essential for keeping your air conditioner efficiency.
Before carrying out any maintenance, disconnect the power supply by taking the plug out from the socket.

INDOOR UNIT
ANTIDUST FILTERS

1. Open the front panel following the direction of the arrow
2. Keeping the front panel raised with one hand, take out the air filter with the other hand
3. Clean the filter with water; if the filter is soiled with oil, it can be washed with warm water (not exceeding° 45 C).
Leave to dry in a cool and dry place.
4. Keeping the front panel raised with one hand, insert the air filter with the other hand
5. Close The electrostatic and the deodorant filter (if installed) cannot be washed or regenerated and must be replaced with new filters after every 6 months.

CLEANING THE HEAT EXCHANGER

1.  Open the front panel of the unit and live it till its greatest stroke and then unhook it from the hinges to make the cleaning easier.
2.  Clean the indoor unit using a cloth with water ° ( not higher than 40 C) and neutral soap. Never use aggressive solvents or detergents.
3.  If the outdoor unit is clogged, remove the leaves and the waste and remove the dust with air-jet or a bit of water.

END OF SEASON MAINTENANCE

1. Disconnect the automatic switch or the plug.
2. Clean and replace the filters
3. On a sunny day let the conditioner work in ventilation for some hours so that the inside of the unit can dry completely ..

REPLACING THE BATTERIES
When: • There is no confirmation beep heard from the indoor unit.

N.B: Use only new batteries. Remove the batteries from the remote controller when the conditioner is not in
operation
WARNING ! Do not throw batteries into common rubbish, they should be disposed of in the special

TROUBLESHOOTING

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