Panasonic CU4Z80TBE Mode d'emploi

Deutsch Español Français English

ACXF55-22580

Model No.

Indoor Unit Outdoor Unit

CS-RZ20VKEW

CS-RZ25VKEW

CS-RZ35VKEW

CS-RZ42VKEW

CS-RZ50VKEW

CS-RZ60VKEW

CS-RZ71VKEW

CS-MRZ16VKE

Outdoor Unit

Single Split (R32)

CU-RZ20VKE

CU-RZ25VKE

CU-RZ35VKE

CU-RZ42VKE

CU-RZ50VKE

CU-RZ60VKE

CU-RZ71VKE

Multi Split (R410A)

CU-3E18PBE

CU-4E23PBE

CU-4E27PBE

CU-5E34PBE

CU-2E12SBE

CU-2E15SBE

CU-2E18SBE

CU-3E23SBE

CU-2RE15SBE

CU-2RE18SBE

CU-3RE18SBE

Multi Split (R32)

CU-2Z35TBE

CU-2Z41TBE

CU-2Z50TBE

CU-3Z52TBE

CU-3Z68TBE

CU-4Z68TBE

CU-4Z80TBE

CU-5Z90TBE

CU-2TZ41TBE

CU-2TZ50TBE

CU-3TZ52TBE

Operating Instructions

Air Conditioner

Operating Instructions

Air Conditioner

2-23

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.

Comment utiliser l’appareil

Climatiseur

24-45

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

46-67

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.

Bedienungsanleitung

Klimagerät

68-89

Bevor Sie das Gerät in Betrieb nehmen, lesen Sie bitte diese

Bedienungsanleitung aufmerksam durch und bewahren Sie

sie als künftige Referenz auf.

Das mitgelieferte Installationshandbuch sollte aufbewahrt und

vor der Installation vom Installateur gelesen werden.

Die Fernbedienung ist im Innengerät verpackt und wird vor

der Installation durch den Installateur entfernt.

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Flexibility to connect

Single Split System or

Multi Split System Air

Conditioner to suit your

needs.

For complete product features,

please refer to catalogue.

Provides maximum comfort and clean air

with optimal energy saving methods.

Use remote

control within 8 m

from the remote

control receiver of

the indoor unit.

Quick Guide

Inserting the batteries

1

2

3

1

Pull out the back cover

of remote control.

2

Insert AAA or R03

batteries.

3

Close the cover.

A

Clock setting

1

Press

and

set the

time .

• Press and hold

for approximately

5 seconds to show

time in 12-hour

(am/pm) or 24 hour

indication.

2

Conﬁ rm .

* Remote control display

and functions may

vary depending on the

model.

FAN SPEED

A

B

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English

Table of contents

Safety precautions

………

4-15

How to use

……………………

16-17

To learn more

……………

18-19

Cleaning instructions

………

20

Troubleshooting

…………

21-23

Information………………… 90

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.

B

Basic operation

2

Press

to select

the desired mode.

DRY

AUTO HEAT

COOL

1

Press

to start/

stop the operation.

POWER

• Please note that

the

indication

is on display to

start the unit.

3

Select the desired

temperature.

Up

Down

Selection range:

16.0 °C ~ 30.0 °C /

60 °F ~ 86 °F.

• Press and hold

for

approximately 10 seconds

to switch the temperature

indication in °C or °F.

Thank you for purchasing

Panasonic Air Conditioner.

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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 classiﬁ ed as below:

This appliances is not intended for accessibility

by the general public.

WARNING

This sign

warns of

death or

serious injury.

CAUTION

This sign

warns of

injury or

damage to

property.

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.

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.

Indoor unit

Outdoor unit

Power supply

Remote control

Air inlet

Air outlet

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English

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.

Safety precautions

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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.

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English

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.

Safety precautions

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•

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.

e) Air-conditioner piping in the

occupied space shall be installed

in such a way to protect against

accidental damage in operation

and service.

f) Precautions shall be taken to avoid

excessive vibration or pulsation to

refrigerating piping.

g) Ensure protection devices,

refrigerating piping and ﬁ ttings are

well protected against adverse

environmental effects (such as

the danger of water collecting

and freezing in relief pipes or the

accumulation of dirt and debris).

h) Expansion and contraction of

long runs piping in refrigerating

systems shall be designed and

installed securely (mounted

and guarded) to minimize the

likelihood hydraulic shock

damaging the system.

i) Protect the refrigerating system

from accidental rupture due to

moving furniture or reconstruction

activities.

j) To ensure no leaking, ﬁ eld-made

refrigerant joints indoors shall be

tightness tested. The test method

shall have a sensitivity of 5 grams

per year of refrigerant or better

under a pressure of at least 0.25

times the maximum allowable

pressure (>1.04 MPa, max

4.15 MPa). No leak shall be

detected.

Safety precautions

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English

1. Installation (Space)

•

Product with ﬂ ammable refrigerants,

shall be installed according to

the minimum room area, Amin

(m²) mentioned in Table A of the

Installation Instructions.

•

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 pipe-

work 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

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.

Safety precautions

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Safety precautions

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.

•

Keep all sources of ignition and hot

metal surfaces away.

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 refrigerating equipment or

any associated parts, appropriate

ﬁ re extinguishing equipment shall be

available at hand.

•

Have a dry powder or CO

2

ﬁ re

extinguisher adjacent to the charging

area.

2-5. No ignition sources

•

No person carrying out work in

relation to a refrigerating 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.

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English

2-7. Checks to the refrigerating

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 actual refrigerant charge

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.

-

Refrigerating 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 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

temporary solution shall be used.

•

The owner of the equipment must be

informed or reported so all parties are

advised thereinafter.

Safety precautions

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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.

ACXF55-22580.indb 12ACXF55-22580.indb 12 11/2/2018 10:01:37 AM11/2/2018 10:01:37 AM

13

English

7. The following leak detection

methods are deemed acceptable

for all refrigerant systems

•

No leaks shall be detected when

using detection equipment with a

sensitivity of 5 grams per year of

refrigerant or better under a pressure

of at least 0.25 times the maximum

allowable pressure (>1.04 MPa, max

4.15 MPa), for example, a universal

sniffer.

•

Electronic leak detectors may be

used to detect ﬂ ammable refrigerants,

but the sensitivity may not be

adequate, or may need re-calibration.

(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 also suitable

for use with most refrigerants,

for example, bubble method and

ﬂ uorescent method agents. 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. The

precautions in #8 must be followed to

remove the refrigerant.

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

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 purged with OFN

to render the appliance safe.

•

This process may need to be

repeated several times.

•

Compressed air or oxygen shall not

be used for this task.

•

Purging 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,

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

potential ignition sources and there is

ventilation available.

OFN = oxygen free nitrogen,

type of inert gas.

Safety precautions

ACXF55-22580.indb 13ACXF55-22580.indb 13 11/2/2018 10:01:37 AM11/2/2018 10:01:37 AM

14

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 in an

appropriate position according to

the instructions.

-

Ensure that the refrigerating 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 refrigerating 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 recovered

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

instructions.

h) Do not over ﬁ ll cylinders. (No more

than 80 % volume liquid charge).

ACXF55-22580.indb 14ACXF55-22580.indb 14 11/2/2018 10:01:37 AM11/2/2018 10:01:37 AM

15

English

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 refrigerating

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 leak-

free 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.

Safety precautions

ACXF55-22580.indb 15ACXF55-22580.indb 15 11/2/2018 10:01:37 AM11/2/2018 10:01:37 AM

16

How to use

To adjust airﬂ ow direction

To adjust fan speed

To switch between powerful/quiet

POWERFUL:

To reach temperature quickly

• This operation stops automatically after 20 minutes.

QUIET:

To enjoy quiet operation

• This operation reduces airﬂ ow noise.

• 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 (

).

AUTO

FAN

Indicator

POWER

TIMER

• Do not adjust the ﬂ ap by hand.

To adjust airﬂ ow direction

AIR SWING

Upper direction

(CS-RZ20/25/35/42VKEW, CS-MRZ16VKE)

To adjust airﬂ ow direction

AIR SWING

Upper direction

Lateral direction

(CS-RZ50/60/71VKEW)

• For lateral direction, it is manually

adjustable as shown.

• Do not adjust the ﬂ ap by hand.

FAN SPEEDFAN SPEED

FAN SPEED

CS-RZ50/60/71VKEW

Not used

in normal

operations.

Press to restore

the remote

control to default

setting.

CS-RZ20/25/35/42VKEW,

CS-MRZ16VKE

ACXF55-22580.indb 16ACXF55-22580.indb 16 11/2/2018 10:01:37 AM11/2/2018 10:01:37 AM

17

English

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

To set the timer

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.

ON

OFF

TIMER

CANCEL

SET

C

AN

C

E

L

21 3

1

Select ON or OFF

timer

Example:

OFF at 22:00

• Each time pressed:

Cancel

2 Set the time

3 Conﬁ rm

• 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

or to select

respective

or then press .

• 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

Quick Guide.

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

How to use

To maximise comfort while sleeping

•

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 until the sleep timer

reaches 0.0h.

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).

ACXF55-22580.indb 17ACXF55-22580.indb 17 11/2/2018 10:01:38 AM11/2/2018 10:01:38 AM

18

Operation mode

• It is possible to operate the indoor units individually or simultaneously. The priority of

operation is placed on the ﬁ rst unit that turned on.

• During operation, HEAT and COOL modes cannot activate at the same time for different

indoor units.

• The power indicator blinks to indicate the indoor unit is standing by for different operation

mode.

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

Single

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

temperatures.

Multi

• Unit selects operation mode every 3 hours according to setting temperature,

outdoor temperature and room temperature.

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

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.

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 /

68 °F ~ 75 °F.

COOL: 26.0 °C ~ 28.0 °C /

79 °F ~ 82 °F.

Air ﬂ ow direction

In COOL/DRY mode:

(CS-RZ20/25/35/42VKEW, CS-MRZ16VKE)

If AUTO is set, the ﬂ ap swings up/down automatically.

(CS-RZ50/60/71VKEW)

I

f 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.

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.

To learn more...

Single

Single split system

Multi

Multi split system

ACXF55-22580.indb 18ACXF55-22580.indb 18 11/2/2018 10:01:38 AM11/2/2018 10:01:38 AM

19

English

Operating conditions

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

Temperature

°C (°F)

Indoor

Single split outdoor unit

*

1

Multi split outdoor unit *

2

DBT WBT DBT WBT DBT WBT

COOL

Max. 32 (89.6) 23 (73.4) 43 (109.4) 26 (78.8) 46 (114.8) 26 (78.8)

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

HEAT

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

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

Temperature

°C (°F)

Multi split outdoor unit

*

3

DBT WBT

COOL

Max. 43 (109.4) 26 (78.8)

Min. 16 (60.8) 11 (51.8)

HEAT

Max. 24 (75.2) 18 (64.4)

Min. -10 (14.0) -11 (12.2)

DBT: Dry bulb temperature, WBT: Wet bulb temperature

*

1

CU-RZ20VKE, CU-RZ25VKE, CU-RZ35VKE, CU-RZ42VKE, CU-RZ50VKE, CU-RZ60VKE, CU-RZ71VKE

*

2

CU-3E18PBE, CU-4E23PBE, CU-4E27PBE, CU-5E34PBE, CU-2E12SBE, CU-2E15SBE, CU-2E18SBE, CU-3E23SBE,

CU-2Z35TBE, CU-2Z41TBE, CU-2Z50TBE, CU-3Z52TBE, CU-3Z68TBE, CU-4Z68TBE, CU-4Z80TBE, CU-5Z90TBE

*

3

CU-2RE15SBE, CU-2RE18SBE, CU-3RE18SBE, CU-2TZ41TBE, CU-2TZ50TBE, CU-3TZ52TBE

To learn more...

ACXF55-22580.indb 19ACXF55-22580.indb 19 11/2/2018 10:01:38 AM11/2/2018 10:01:38 AM

20

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 an authorised dealer.

Outdoor unit

Clear debris that surround the

unit.

Clear any blockage from drain

pipe.

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

Insert into the unit

Front panel

Wash gently and dry.

Remove the front panel Close it securely

1

Release the hooks at

both ends.

2

Pull out and lift up.

1

Insert

at both

sides.

2

Push in.

3

Close down.

4

Press both ends and center of the front panel.

Indoor unit

Aluminium ﬁ n

Front panel

Air ﬁ lters

Air Purifying Filter

(CS-RZ50/60/71VKEW)

Air Purifying Filter

• Do not wash the air purifying ﬁ lter.

• Replace the ﬁ lter every 10 years or replace

any damaged ﬁ lter.

Part no.: CZ-SA32P

Air Purifying Filter

(CS-RZ20/25/35/

42VKEW,

CS-MRZ16VKE)

ACXF55-22580.indb 20ACXF55-22580.indb 20 11/2/2018 10:01:38 AM11/2/2018 10:01:38 AM

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