Panasonic CS-FZ25UKE, CS-FZ35UKE, CS-FZ50UKE, CS-FZ60UKE, CU-FZ25UKE Operating Instructions

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Operating Instructions

Air Conditioner

Model No. Indoor Unit Outdoor Unit

CS-FZ25UKE CS-FZ35UKE CS-FZ50UKE CS-FZ60UKE

CU-FZ25UKE CU-FZ35UKE CU-FZ50UKE CU-FZ60UKE

Operating Instructions Air Conditioner

Before operating the unit, please read these operating instructions thoroughly and keep them for future reference. The included Installation Instructions should be kept and read by the installer before installation. Remote control is packaged in the indoor unit and removed by the installer before installation.

2-23

Comment utiliser l’appareil Climatiseur

Avant d’utiliser l’appareil, veuillez lire ce mode d’emploi dans son intégralité et conservez-le pour toute référence ultérieure. Le manuel d’installation inclus doit être conservé et lu par l’installateur avant l’installation. La télécommande est emballée dans l’unité intérieure et retirée par l’installateur avant l’installation.

Instrucciones de funcionamiento Climatizador de aire

Antes de utilizar la unidad, sírvase leer atentamente estas instrucciones de funcionamiento y conservarlas para futuras consultas. El instalador debe guardar y leer las Instrucciones de instalación incluidas antes de la instalación. El mando a distancia viene embalado en la unidad interior y debe ser retirado por el instalador antes de la instalación.

24-45

46-67

Español Français English

ACXF55-18840

Provides maximum comfort with optimal

FAN SPEED

energy saving methods.

Use remote control within 8 m from the remote control receiver of the indoor unit.

* Remote control display

and functions may vary depending on the model.

Quick Guide

Inserting the batteries

Pull out the back cover

of remote control. Insert AAA or R03

batteries.

Close the cover.

Clock setting

Press

time .

and

• Press and hold for approximately 5 seconds to show time in 12-hour (am/pm) or 24 hour indication.

Conﬁ rm .

set the

Thank you for purchasing Panasonic Air Conditioner.

Table of contents

Safety precautions

How to use

To learn more

Cleaning instructions

Troubleshooting

Information

..........

4-15

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16-17

19-20

21-23

Accessories

• Remote control

• AAA or R03 batteries × 2

• Remote control holder

• Screws for remote control holder × 2

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.

English

Basic operation

Press

to select

the desired mode.

AUTO HEAT

DRY

COOL

Press

to start/

stop the operation.

POWER

• Please note that the

indication is on display to start the unit.

Select the desired

temperature.

Down

Selection range:

16.0 °C ~ 30.0 °C / 60 °F ~ 86 °F.

• Press and hold approximately 10 seconds to switch the temperature indication in °C or °F.

for

Safety precautions

Air inlet

Air outlet

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 classiﬁ ed as below: This appliances is not intended for accessibility by the general public.

This sign

Air inlet

warns of death or serious injury.

This sign warns of injury or damage to property.

Power supply

Air outlet

WARNING

CAUTION

The instructions to be followed are classiﬁ ed by the following symbols:

This symbol denotes an action that is PROHIBITED.

These symbols denote actions COMPULSORY.

Indoor unit

Air outlet

Remote control

Outdoor unit

Air inlet

WARNING

Indoor unit and outdoor unit

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.

Please consult authorised 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 ﬁ re.

Conﬁ rm with authorised dealer or specialist on usage of any speciﬁ ed refrigerant type. Using refrigerant type other than the speciﬁ ed may cause product damage, burst and injury etc.

Do not use means to accelerate the defrosting process or to clean, other than those recommended by manufacturer. Any unﬁ t method or using incompatible material may cause product damage, burst and serious injury.

Do not install the unit in a potentially explosive or ﬂ ammable atmosphere. Failure to do so could result in ﬁ re.

Do not insert your ﬁ ngers 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

Do not use a modiﬁ ed cord, joint cord, extension cord or unspeciﬁ ed cord to prevent overheating and ﬁ re.

To prevent overheating, ﬁ re or electric shock:

•

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.

If the supply cord is damaged, it must be replaced by the manufacturer, service agent or similarly qualiﬁ ed 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 ﬁ re.

To prevent overheating, ﬁ re 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/ﬁ re/electric shock) Examples of abnormality/failure

•

The ELCB trips frequently.

•

Burning smell is observed.

•

Abnormal noise or vibration of the unit is observed.

•

Water leaks from the indoor unit.

•

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.

This equipment must be earthed to prevent electrical shock or ﬁ re.

Prevent electric shock by switching off the power supply and unplug:

-Before cleaning or servicing,

-When extended non-use, or

-During abnormally strong lightning activity.

EnglishSafety precautions

Safety precautions

CAUTION

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 airﬂ ow outlet to avoid ﬁ re propagation.

Do not expose plants or pet directly to airﬂ ow to avoid injury, etc.

Do not touch the sharp aluminium ﬁ n, sharp parts may cause injury.

Do not switch ON the indoor unit when waxing the ﬂ oor. 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 operation, it may lead to inefﬁ cient power usage and uncomfortable temperature changes.

Prevent water leakage by ensuring drainage pipe is:

-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 damage the remote control.

To prevent malfunction or damage of 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 prevent electric shock.

WARNING

This appliance is ﬁ lled with R32 (mild ﬂ ammable refrigerant).

If the refrigerant is leaked and exposed to an external ignition source, there is a risk of ﬁ re.

Indoor unit and outdoor unit

The appliance shall be installed, and/or operated in a room with ﬂ oor area larger than Amin (m²) and keep away from ignition sources, such as heat/sparks/open ﬂ ame or hazardous areas such as gas appliances, gas cooking, reticulated gas supply systems or electric cooking appliances, etc.(Refer to Table A of Installation instructions table for Amin (m²))

Be aware that refrigerant may not contain an odour, highly recommended to ensure suitable ﬂ ammable refrigerant gas detectors are present, operating and able to warn of a leak.

Keep any required ventilation openings clear of obstruction.

Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, ﬂ ame, sparks, or other sources of ignition. Else it may explode and cause injury or death.

Precaution for using R32 refrigerant

The basic installation work procedures are the same as conventional refrigerant (R410A, R22) models.

Since the working pressure is higher than that of refrigerant R22 models, some of the piping and installation and service tools are special. Especially, when replacing a refrigerant R22 model with a new refrigerant R32 model, always replace the conventional piping and ﬂ are nuts with the R32 and R410A piping and ﬂ are nuts on the outdoor unit side. For R32 and R410A, the same ﬂ are nut on the outdoor unit side and pipe can be used.

The mixing of different refrigerants within a system is prohibited. Models that use refrigerant R32 and R410A have a different charging port thread diameter to prevent erroneous charging with refrigerant R22 and for safety. Therefore, check beforehand. [The charging port thread diameter for R32 and R410A is 1/2 inch.]

Must always ensure that foreign matter (oil, water, etc.) does not enter the piping. Also, when storing the piping, securely seal the opening by pinching, taping, etc. (Handling of R32 is similar to R410A.)

•

Operation, maintenance, repairing and refrigerant recovery should be carried out by trained and certiﬁ ed personnel in the use of ﬂ ammable refrigerants and as recommended by the manufacturer. Any personnel conducting an operation, servicing or maintenance on a system or associated parts of the equipment should be trained and certiﬁ ed.

English

Safety precautions

•

Any part of refrigerating circuit (evaporators, air coolers, AHU, condensers or liquid receivers) or piping should not be located in the proximity of heat sources, open ﬂ ames, operating gas appliance or an operating electric heater.

•

The user/owner or their authorised representative shall regularly check the alarms, mechanical ventilation and detectors, at least once a year, where as required by national regulations, to ensure their correct functioning.

•

A logbook shall be maintained. The results of these checks shall be recorded in the logbook.

•

In case of ventilations in occupied spaces shall be checked to conﬁ rm no obstruction.

•

Before a new refrigerating system is put into service, the person responsible for placing the system in operation should ensure that trained and certiﬁ ed operating personnel are instructed on the basis of the instruction manual about the construction, supervision, operation and maintenance of the refrigerating system, as well as the safety measures to be observed, and the properties and handling of the refrigerant used.

•

The general requirement of trained and certiﬁ ed personnel are indicated as below:

a) Knowledge of legislation,

regulations and standards relating to ﬂ ammable refrigerants; and,

b) Detailed knowledge of and

skills in handling ﬂ ammable refrigerants, personal protective equipment, refrigerant leakage prevention, handling of cylinders, charging, leak detection, recovery and disposal; and,

c) Able to understand and to apply

in practice the requirements in the national legislation, regulations and Standards; and,

d) Continuously undergo regular

and further training to maintain this expertise.

1. Installation (Space)

•

Product with ﬂ ammable refrigerants, shall not be installed in an unventilated space, if that space is smaller than Amin (m²).

•

In case of ﬁ eld charge, the effect on refrigerant charge caused by the different pipe length has to be quantiﬁ ed, measured and labelled.

•

Must ensure the installation of pipework shall be kept to a minimum. Avoid use dented pipe and do not allow acute bending.

•

Must ensure that pipe-work shall be protected from physical damage.

•

Must comply with national gas regulations, state municipal rules and legislation. Notify relevant authorities in accordance with all applicable regulations.

•

Must ensure mechanical connections be accessible for maintenance purposes.

•

In cases that require mechanical ventilation, ventilation openings shall be kept clear of obstruction.

•

When disposal of the product, do follow to the precautions in #12 and comply with national regulations. Always contact to local municipal ofﬁ ces for proper handling.

2. Servicing 2-1. Service personnel

•

The system is inspected, regularly supervised and maintained by a trained and certiﬁ ed service personnel who is employed by the person user or party responsible.

•

Ensure the actual refrigerant charge size is in accordance with the room size within which the refrigerant containing parts are installed.

•

Ensure refrigerant charge not to leak.

•

Any qualiﬁ ed person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certiﬁ cate from an industry- accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognised assessment speciﬁ cation.

•

Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of ﬂ ammable refrigerants.

•

Servicing shall be performed only as recommended by the manufacturer.

2-2. Work

•

Prior to beginning work on systems containing ﬂ ammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the precautions in #2-2 to #2-8 must be followed before conducting work on the system.

•

Work shall be undertaken under a controlled procedure so as to minimize the risk of a ﬂ ammable gas or vapour being present while the work is being performed.

•

All maintenance staff and others working in the local area shall be instructed and supervised on the nature of work being carried out.

•

Avoid working in conﬁ ned spaces. Always ensure away from source, at least 2 meter of safety distance, or zoning of free space area of at least 2 meter in radius.

•

Wear appropriate protective equipment, including respiratory protection, as conditions warrant.

•

Ensure that the conditions within the area have been made safe by limit of use of any ﬂ ammable material. Keep all sources of ignition and hot metal surfaces away.

English

Safety precautions

2-3. 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 ﬂ ammable atmospheres.

•

Ensure that the leak detection equipment being used is suitable for use with ﬂ ammable refrigerants, i.e. non sparking, adequately sealed or intrinsically safe.

•

In case of leakage/spillage happened, immediately ventilate area and stay upwind and away from spill/release.

•

In case of leakage/spillage happened, do notify persons down wind of the leaking/spill, isolate immediate hazard area and keep unauthorized personnel out.

2-4. Presence of ﬁ re extinguisher

•

If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate ﬁ re extinguishing equipment shall be available at hand.

•

Have a dry powder or CO2 ﬁ re extinguisher adjacent to the charging area.

2-5. No ignition sources

•

No person carrying out work in relation to a refrigeration system which involves exposing any pipe work that contains or has contained ﬂ ammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of ﬁ re or explosion. He/She must not be smoking when carrying out such work.

•

All possible ignition sources, including cigarette smoking, should be kept sufﬁ ciently far away from the site of installation, repairing, removing and disposal, during which ﬂ ammable 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 ﬂ ammable hazards or ignition risks.

•

“No Smoking” signs shall be displayed.

2-6. Ventilated area

•

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.

2-7. Checks to the refrigeration

equipment

•

Where electrical components are being changed, they shall be ﬁ t for the purpose and to the correct speciﬁ cation.

•

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 ﬂ ammable 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.

Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected.

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 properly protected against being so corroded.

2-8. Checks to electrical devices

•

Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures.

•

Initial safety checks shall include but not limit to:-

That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking.

That there no live electrical components and wiring are exposed while charging, recovering or purging the system.

That there is continuity of earth bonding.

•

At all times the manufacturer’s maintenance and service guidelines shall be followed.

•

If in doubt consult the

English

manufacturer’s technical department for assistance.

•

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

Safety precautions

temporary solution shall be used.

•

The owner of the equipment must be informed or reported so all parties are advised thereinafter.

Safety precautions

3. Repairs to sealed components

•

During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc.

•

If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.

•

Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected.This shall include damage to cables, excessive number of connections, terminals not made to original speciﬁ cation, damage to seals, incorrect ﬁ tting of glands, etc.

•

Ensure that apparatus is mounted securely.

•

Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress of ﬂ ammable atmospheres.

•

Replacement parts shall be in accordance with the manufacturer’s

speciﬁ cations. NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not have to be isolated prior to working on them.

4. Repair to intrinsically safe components

•

Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use.

•

Intrinsically safe components are the only types that can be worked on while live in the presence of a ﬂ ammable atmosphere.

•

The test apparatus shall be at the correct rating.

•

Replace components only with parts speciﬁ ed by the manufacturer. Unspeciﬁ ed parts by manufacturer may result ignition of refrigerant in the atmosphere from a leak.

5. Cabling

•

Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects.

•

The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.

6. Detection of ﬂ ammable refrigerants

•

Under no circumstances shall potential sources of ignition be used in the searching or detection of refrigerant leaks.

•

A halide torch (or any other detector using a naked ﬂ ame) shall not be used.

7. Leak detection methods

The following leak detection methods are deemed acceptable for all refrigerant systems.

•

No leaks shall be detected when using detection equipment with a capability of 10−6 Pa·m3/s or better, for example, a helium sniffer.

•

Electronic leak detectors may be used to detect ﬂ ammable refrigerants, but the sensitivity may not be adequate, or may need recalibration. (Detection equipment shall be calibrated in a refrigerant-free area.)

•

Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used.

•

Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximum) is conﬁ rmed.

•

Leak detection ﬂ uids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work.

•

If a leak is suspected, all naked ﬂ ames shall be removed/ extinguished.

•

If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. Oxygen free nitrogen (OFN) shall then be purged through the system both before and during the brazing process.

OFN = oxygen free nitrogen,

type of inert gas.

8. Removal and evacuation

•

When breaking into the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, it is important that best practice is followed since ﬂ ammability is a consideration. The following procedure shall be adhered to: remove refrigerant -> purge the circuit with inert gas -> evacuate -> purge again with inert gas -> open the circuit by cutting or brazing

•

The refrigerant charge shall be recovered into the correct recovery cylinders.

•

The system shall be “ﬂ ushed” with OFN to render the unit safe.

•

This process may need to be repeated several times.

•

Compressed air or oxygen shall not

English

be used for this task.

•

Flushing shall be achieved by breaking the vacuum in the system with OFN and continuing to ﬁ ll until the working pressure is achieved, then venting to atmosphere, and ﬁ nally pulling down to a vacuum.

•

This process shall be repeated until no refrigerant is within the system.

•

When the ﬁ nal OFN charge is used,

Safety precautions

the system shall be vented down to atmospheric pressure to enable work to take place.

•

This operation is absolutely vital if brazing operations on the pipe work are to take place.

•

Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is ventilation available.

Safety precautions

9. Charging procedures

•

In addition to conventional charging procedures, the following requirements shall be followed.

Ensure that contamination of different refrigerants does not occur when using charging equipment.

Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them.

Cylinders shall be kept upright.

Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.

Label the system when charging is complete (if not already).

Extreme care shall be taken not to over ﬁ ll the refrigeration system.

•

Prior to recharging the system it shall be pressure tested with OFN (refer to #7).

•

The system shall be leak tested on completion of charging but prior to commissioning.

•

A follow up leak test shall be carried out prior to leaving the site.

•

Electrostatic charge may accumulate and create a hazardous condition when charging and discharging the refrigerant.To avoid ﬁ re or explosion, dissipate static electricity during transfer by grounding and bonding containers and equipment before charging/ discharging.

10. Decommissioning

•

Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its details.

•

It is recommended good practice that all refrigerants are recovered safely.

•

Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant.

•

It is essential that electrical power is available before the task is commenced.

a) Become familiar with the

equipment and its operation. b) Isolate system electrically. c) Before attempting the procedure

ensure that:

•

mechanical handling equipment

is available, if required, for

handling refrigerant cylinders;

•

all personal protective equipment

is available and being used

correctly;

•

the recovery process is

supervised at all times by a

competent person;

•

recovery equipment and

cylinders conform to the

appropriate standards. d) Pump down refrigerant system,

if possible. e) If a vacuum is not possible,

make a manifold so that

refrigerant can be removed from

various parts of the system. f) Make sure that cylinder is

situated on the scales before

recovery takes place. g) Start the recovery machine and

operate in accordance with

manufacturer’s instructions. h) Do not over ﬁ ll cylinders. (No

more than 80 % volume liquid

charge).

i) Do not exceed the maximum

working pressure of the cylinder, even temporarily.

j) When the cylinders have been

ﬁ lled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.

k) Recovered refrigerant shall

not be charged into another refrigeration system unless it has been cleaned and checked.

•

Electrostatic charge may accumulate and create a hazardous condition when charging or discharging the refrigerant.To avoid ﬁ re or explosion, dissipate static electricity during transfer by grounding and bonding containers and equipment before charging/discharging.

11. Labelling

•

Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant.

•

The label shall be dated and signed.

•

Ensure that there are labels on the equipment stating the equipment contains ﬂ ammable refrigerant.

12. Recovery

•

When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely.

•

When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed.

•

Ensure that the correct number of cylinders for holding the total system charge are available.

•

All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant).

•

Cylinders shall be complete with pressure relief valve and associated shut-off valves in good working order.

•

Recovery cylinders are evacuated and, if possible, cooled before recovery occurs.

•

The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of ﬂ ammable refrigerants.

•

In addition, a set of calibrated weighing scales shall be available and in good working order.

•

Hoses shall be complete with leakfree disconnect couplings and in good condition.

•

Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release.Consult manufacturer if in doubt.

•

The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged.

•

Do not mix refrigerants in recovery units and especially not in cylinders.

•

If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that ﬂ ammable refrigerant does not remain within the lubricant.

•

The evacuation process shall be carried out prior to returning the compressor to the suppliers.

•

Only electric heating to the compressor body shall be employed to accelerate this process.

•

When oil is drained from a system, it shall be carried out safely.

English

Safety precautions

How to use

FAN SPEEDFAN SPEED

To adjust airﬂ ow direction

(CS-FZ25/35/50UKE)

Indicator

CS-FZ25/35/50UKE

CS-FZ60UKE

FAN SPEED

POWER

TIMER

AIR SWING

Upper direction

• Do not adjust the ﬂ ap by hand.

• For lateral direction, it is manually adjustable as shown.

To adjust airﬂ ow direction

(CS-FZ60UKE)

Upper direction

AIR SWING

Lateral direction

• Do not adjust the ﬂ ap by hand.

To adjust fan speed

AUTO FAN

• For AUTO, the indoor fan speed is automatically adjusted according to the operation mode.

• To have low noise priority operation, select the lowest fan speed (

Not used in normal operations.

Press to restore the remote control to default setting.

To switch between powerful/quiet

POWERFUL: To reach the preset temperature quickly

• This operation stops automatically after 20 minutes.

QUIET: To enjoy quiet operation

• This operation reduces airﬂ ow noise.

See "To learn more..." for details.

CANCEL

To maximise comfort while sleeping

This operation provides you with a comfortable environment while sleeping. It will automatically adjust the sleep pattern temperature during the activation period. The indoor unit indicator will dim when this operation is activated. This is not applicable if the indicator brightness has been manually dimmed.

•

SLEEP

(Cancel)

This operation is incorporated with the activation timer (0.5, 1, 2, 3, 4, 5, 6, 7, 8 or 9 hours).

This operation can be set together with timer. Sleep operation has the priority over OFF timer.

•

This operation can be cancelled by pressing the respective button when the sleep timer reaches 0.0h.

To set the timer

2 sets of ON and OFF timers are available to turn ON or OFF the unit at different preset times.

21 3

TIMER

OFF

Select ON or OFF

timer

• Each time pressed:

Cancel

SET

CANCEL

Example: OFF at 22:00

• To cancel ON or OFF timer, press or

to select respective or then

press

• If timer is cancelled manually or due to power failure, you can restore the timer again by pressing respective

or then press .

or to select

• The nearest timer setting will be displayed and will activate in sequence.

• Timer operation is based on the clock set in the remote control and repeats daily once set. For clock setting, please refer to

2 Set the time

Quick Guide.

English

How to use

3 Conﬁ rm

Note

SLEEP

• Can be activated in all modes and can be cancelled by pressing the respective button again.

• Cannot be selected at the same time.

To learn more...

Operation mode

AUTO : During operation, the POWER indicator will blinks at initial.

HEAT : The POWER indicator blinks at the initial stage of this operation. Unit takes a while

COOL : Provides efﬁ cient comfort cooling to suit your needs. DRY : Unit operates at low fan speed to give a gentle cooling operation.

Energy saving temperature setting

Operating the unit within the recommended temperature range may save energy.

HEAT : 20.0 °C ~ 24.0 °C / COOL: 26.0 °C ~ 28.0 °C /

Air ﬂ ow direction

In COOL/DRY mode:

(CS-FZ25/35/50UKE) If AUTO is set, the ﬂ ap swings up/down automatically.

(CS-FZ60UKE) If

AUTO is set, the ﬂ ap swings left/right and up/down automatically.

In HEAT mode:

If AUTO is set, the horizontal ﬂ ap is ﬁ xed at the predetermined position. The vertical ﬂ ap swings left/right after the temperature rises.

Unit selects operation mode every 10 minutes according to the setting and room temperatures.

to warm up.

• For system which HEAT mode has been locked, if operation mode other than HEAT is selected, the indoor unit stops and the POWER indicator blinks.

68 °F ~ 75 °F. 79 °F ~ 82 °F.

Auto restart control

If power is resumed after a power failure, the operation will restart automatically after a period of time with previous operation mode and airﬂ ow direction.

• This control is not applicable when TIMER is set.

Operating conditions

Use this air conditioner in the temperature range indicated in the table.

Temperature

COOL

HEAT

DBT: Dry bulb temperature, WBT: Wet bulb temperature

°C (°F)

DBT WBT DBT WBT

Max. 32 (89.6) 23 (73.4) 43 (109.4) 26 (78.8)

Min. 16 (60.8) 11 (51.8) -10 (14.0) -

Max. 30 (86.0) - 24 (75.2) 18 (64.4)

Min. 16 (60.8) - -15 (5.0) -16 (3.2)

Indoor Outdoor

Cleaning instructions

To ensure optimal performance of the unit, cleaning has to be carried out at regular intervals. Dirty unit may cause malfunction and you may see error code “H 99”. Please consult authorised dealer.

• Switch off the power supply and unplug before cleaning.

• Do not touch the aluminium ﬁ n, sharp parts may cause injury.

• Do not use benzine, thinner or scouring powder.

• Use only soap (

pH 7) or neutral household

detergent.

• Do not use water hotter than 40 °C / 104 °F.

Indoor unit

Wipe the unit gently with a soft, dry cloth. Coils and fans should be clean for at least every 6 months by authorised dealer.

Outdoor unit

Clear debris that surround the unit.

Air ﬁ lters

Once every 2 weeks

• Wash/rinse the ﬁ lters gently with water to avoid damage to the ﬁ lter surface.

• Dry the ﬁ lters thoroughly under shade, away from ﬁ re or direct sunlight.

• Replace any damaged ﬁ lters.

Remove air ﬁ lter Attach air ﬁ lter

Clear any blockage from the drain pipe.

Air Purifying Filter

• Do not wash/rinse the ﬁ lter with water.

• Replace the ﬁ lter every 2 years or replace any damaged ﬁ lter. Part no.: CZ-SA31P

Indoor unit

Front panel

Air Purifying Filter (CS-FZ25/35UKE)

Air ﬁ lters

Aluminium ﬁ n

Air Purifying Filter (CS-FZ50/60UKE)

Insert into the unit

POWER

TIMER

EnglishTo learn more... / Cleaning instructions

Air Purifying Filter

Cleaning instructions

Front panel

Wash gently and dry.

Remove the front panel

(For CS-FZ25/35/50UKE) (For CS-FZ60UKE)

Raise.

Close it securely

For both sides

POWER

TIMER

Pull out.

Slide to the

right or left.

Pull out.

Raise.

POWER

TIMER

POWER

TIMER

Close down.

Press both ends of the front panel.

Insert at

both sides.

Troubleshooting

The following symptoms do not indicate malfunction.

Symptom Cause

POWER indicator blinks before the unit is switched on.

POWER indicator blinks during HEAT mode with no warm air supply (and ﬂ ap is closed).

POWER indicator blinks and stops when operate COOL/DRY mode.

TIMER indicator is always on. • The timer setting repeats daily once set. Operation is delayed a few minutes after

restarting. Cooling/heating capacity reduced during the

lowest fan speed setting.

Indoor fan stops occasionally during heating operation.

Indoor fan stops occasionally during automatic fan speed setting.

Airﬂ ow continues even after operation has stopped.

The room has a peculiar odour. • This may be due to damp smell emitted by the wall,

Cracking sound during operation. • Changes of temperature caused the expansion/

Water ﬂ owing sound during operation. • Refrigerant ﬂ ow inside the unit. Mist emerges from indoor unit. • Condensation effect due to cooling process. Outdoor unit emits water/steam. • Condensation or evaporation occurs on pipes.

Dusts accumulated on the wall. • Due to air circulation or static electricity generated

Discoloration of some plastic parts. • Discoloration is subject to material types used in plastic

• This is a preliminary step in preparation for the operation when the ON timer has been set. When ON Timer is set, the unit may start earlier (up to 35 minutes) before the actual set time in order to achieve the desired temperature on time.

• The unit is in defrost mode (and AIR SWING is set to AUTO).

• The system has locked to operate in HEAT mode only.

• The delay is a protection to the unit’s compressor.

• The low fan speed is low noise priority operation, so cooling/heating capacity may be reduced (depending on the condition). Increase the Fan Speed to increase the capacity.

• To avoid unintended cooling effect.

• This helps to remove the surrounding odour.

• Extraction of remaining heat from the indoor unit (maximum 30 seconds).

carpet, furniture or clothing.

contraction of the unit.

by the air conditioner. Some types of wall paper may collect dusts easily (recommended to clean the area around the air conditioner frequently).

parts, accelerated when exposed to heat, sun light, UV light or environmental factor.

English

Check the following before calling for servicing.

Symptom Check

Operation in HEAT/COOL mode is not working efﬁ ciently.

Noisy during operation. • Check if the unit has been installed at an incline.

Remote control does not work. (Display is dim or transmission signal is weak.)

The unit does not work. • Check if the circuit breaker is tripped.

The unit does not receive the signal from the remote control.

• Set the temperature correctly.

• Close all doors and windows.

• Clean or replace the ﬁ lters.

• Clear any obstruction at the air inlet and air outlet vents.

• Close the front panel properly.

• Insert the batteries correctly.

• Replace weak batteries.

• Check if timers have been set.

• Make sure the receiver is not obstructed.

• Certain ﬂ uorescent lights may interfere with signal transmitter. Please consult authorised dealer.

Cleaning instructions / Troubleshooting

Troubleshooting

When...

■ The remote control is missing or a malfunction has occurred

1.Raise the front panel.

2.Press the button once to use in AUTO mode.

3. Press and hold the button until you hear 1 beep, then release to use in forced COOL mode.

4. Repeat step 3. Press and hold the button until you hear 2 beeps, then release to use in forced HEAT mode.

5.Press the button again to turn off.

■ The indicators are too bright

• To dim or restore the unit’s indicator brightness, press

■ Conducting a seasonal inspection after extended non-use

• Check the remote control batteries.

• Check that there is no obstruction around the air inlet and outlet vents.

• Use Auto OFF/ON button to select COOL/HEAT operation. After 15 minutes of operation, it is normal to have the following temperature difference between the air inlet and outlet vents:

COOL: ≥ 8 °C / 14.4 °F

■ The units are not going to be used for a long period of time

Activate HEAT mode for 2~3 hours to remove moisture left in the internal parts thoroughly to

• prevent mould growth.

• Turn off the power supply and unplug.

• Remove the remote control batteries.

HEAT: ≥ 14 °C / 25.2 °F

and hold for 5 seconds.

NON SERVICEABLE CRITERIAS

TURN OFF THE POWER SUPPLY AND UNPLUG then please consult an authorised dealer when in following conditions:

• Abnormal noise during operation.

• Water/foreign particles have entered the remote control.

• Water leaks from Indoor unit.

• Circuit breaker switches off frequently.

• Power cord becomes unnaturally warm.

• Switches or buttons are not functioning properly.

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