Panasonic CS-Z25UD3RAW User manual

English
Operating Instructions
Air Conditioner
Model No.
Indoor Unit Outdoor Unit
CS-Z25UD3RAW
CS-Z35UD3RAW
CS-Z50UD3RAW
CS-Z60UD3RAW
Single Split
CU-Z25UBRA
CU-Z35UBRA
CU-Z50UBRA
CU-Z60UBRA
* Outdoor Unit
Multi Split
CU-2Z50UBR
CU-3Z50UBR
CU-4Z68UBR
CU-4Z80UBR
CU-5Z90UBR
ACXF55-20830
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.
* Kindly consult authorised dealer for connectivity validity.

2
Quick Guide
Remote Control Preparation
aPress
CLOCK
bPress to set day
cConfirm
Repeat steps “b” and “c” to set the
current time.
OFF /ON
TEMP
TIMER/CLOCK
MODE
QUIET/
POWERFUL
FAN SPEED
MODE
CHECK RESET
AIR SWING
OFF/ON
CANCELCLOCK
SET
SELECTUP
DOWN
AC RC
3
1
abc
2
Flexibility to connect Single
Split System or Multi Split
System Air Conditioner to suit
your needs.
For complete product features,
please refer to catalogue.

3
English
Table of contents
Safety precautions ……… 4-15
How to use…………… 16-17
To learn more
……………… 18
Cleaning instructions
……… 19
Troubleshooting
……… 20-22
Information………………… 23
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.
Basic operation
1Press
OFF /ON
to start/stop the operation.
2Press
MODE
to select the desired mode.
DRY
AUTO HEAT
COOL
3Select the desired temperature.
UP
DOWN
Selection range: 16 °C ~ 30 °C / 60 °F ~ 86 °F.
Thank you for purchasing
Panasonic Air Conditioner.

4
Safety precautions
WARNING
Indoor unit and outdoor unit
This appliance is not intended for
use by persons (including children)
with reduced physical, sensory
or mental capabilities, or lack of
experience and knowledge, unless
they have been given supervision
or instruction concerning use of the
appliance by a person responsible
for their safety. Children should be
supervised to ensure that they do
not play with the appliance.
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 fire.
Confirm with authorised dealer or
specialist on usage of any specified
refrigerant type. Using refrigerant
type other than the specified 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 unfit method or using
incompatible material may cause
product damage, burst and serious
injury.
Do not install the unit in a potentially
explosive or flammable atmosphere.
Failure to do so could result in fire.
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:
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 classified
by the following symbols:
This symbol denotes an
action that is PROHIBITED.
These symbols denote
actions COMPULSORY.
Air inlet
Air inlet
Air outlet
Air outlet
Remote control
Outdoor unit
Power supply
Indoor unit
Air inlet vent
Air outlet
vent

5
English Safety precautions
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
Do not use a modified
cord, joint cord,
extension cord or
unspecified cord to
prevent overheating
and fire.
To prevent overheating, fire 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 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.
• 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 fire.
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.

6
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 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 operation, it may
lead to inefficient 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.

7
English Safety precautions
WARNING
This appliance is filled with R32
(mild flammable refrigerant).
If the refrigerant is leaked and
exposed to an external ignition
source, there is a risk of fire.
Indoor unit and outdoor unit
The appliance shall be installed,
and/or operated in a room with floor
area larger than Amin (m²) and
keep away from ignition sources,
such as heat/sparks/open flame
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
flammable 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, flame,
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
flare nuts with the R32 and R410A
piping and flare nuts on the outdoor
unit side.
For R32 and R410A, the same flare
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 certified
personnel in the use of flammable
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 certified.

8
• 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
flames, 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 confirm
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 certified 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 certified personnel are
indicated as below:
a) Knowledge of legislation,
regulations and standards
relating to flammable
refrigerants; and,
b) Detailed knowledge of and
skills in handling flammable
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 flammable
refrigerants, shall not be installed in
an unventilated space, if that space
is smaller than Amin (m²).
• In case of field charge, the effect
on refrigerant charge caused by
the different pipe length has to be
quantified, 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
offices for proper handling.
Safety precautions

9
English
2. Servicing
2-1. Service personnel
• The system is inspected, regularly
supervised and maintained by
a trained and certified 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 qualified person who is
involved with working on or
breaking into a refrigerant circuit
should hold a current valid
certificate from an industry-
accredited assessment authority,
which authorizes their competence
to handle refrigerants safely in
accordance with an industry
recognised assessment
specification.
• 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
flammable refrigerants.
• Servicing shall be performed
only as recommended by the
manufacturer.
2-2. Work
• Prior to beginning work on
systems containing flammable
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 flammable
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 confined 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 flammable
material. Keep all sources of
ignition and hot metal surfaces
away.
Safety precautions

10
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 flammable atmospheres.
• Ensure that the leak detection
equipment being used is suitable
for use with flammable 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 fire extinguisher
• If any hot work is to be conducted
on the refrigeration equipment or
any associated parts, appropriate
fire extinguishing equipment shall
be available at hand.
• Have a dry powder or CO2fire
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
flammable refrigerant shall use
any sources of ignition in such a
manner that it may lead to the risk
of fire or explosion. He/She must
not be smoking when carrying out
such work.
• All possible ignition sources,
including cigarette smoking, should
be kept sufficiently far away from
the site of installation, repairing,
removing and disposal, during
which flammable refrigerant
can possibly be released to the
surrounding space.
• Prior to work taking place, the
area around the equipment is to
be surveyed to make sure that
there are no flammable hazards or
ignition risks.
• “No Smoking” signs shall be
displayed.
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.