Panasonic WH-ADC0912K6E5 User manual

Operating Instructions
Air-to-Water Hydromodule + Tank
Model No.
Indoor Unit
WH-ADC0912K6E5
WH-ADC0912K6E5AN
Outdoor Unit
WH-UXZ09KE5
WH-UXZ12KE5
ENGLISH
Before operating the system, please read these
operating instructions thoroughly and keep them
for future reference.
WEB-ACXF55-35780-EN

2
Table of contents
Safety precautions .......................................................4-16
Remote Controller buttons and display .....................17-18
Initialization .....................................................................19
Quick Menu ....................................................................20
How to use the Quick Menu ......................................21-25
Menus ........................................................................26-47
For user
1 Function setup ...................................................26-27
1.1 Weekly timer
1.2 Holiday timer
1.3 Quiet timer
1.4 Quiet priority
1.5 Room heater
1.6 Tank heater
1.7 Sterilization
1.8 DHW mode
2 System check .........................................................28
2.1 Energy monitor
2.2 System information
2.3 Error history
2.4 Compressor
2.5 Heater
3 Personal setup ...................................................29-30
3.1 Remote control No.
3.2 Touch sound
3.3 LCD contrast
3.4 Backlight
3.5 Backlight intensity
3.6 Clock format
3.7 Date & Time
3.8 Language
3.9 Unlock password
4 Service contact .......................................................30
4.1 Contact 1 / Contact 2
For installer
5 Installer setup > System setup ..........................31-41
5.1 Optional PCB connectivity
5.2 Zone & Sensor
5.3 Heater capacity
5.4 Anti freezing
5.5 DHW capacity
5.6 Buffer tank connection
5.7 Base pan heater
5.8 Alternative outdoor sensor
5.9 Bivalent connection
5.10 External SW
5.11 Solar connection
5.12 External error signal
5.13 Demand control
5.14 SG ready
5.15 External compressor SW
5.16 Circulation liquid
5.17 Heat-Cool SW
5.18 Force heater
5.19 Force defrost
5.20 Defrost signal
5.21 Pump flowrate
5.22 DHW Defrost
5.23 Heating control
5.24 External meter
5.25 Electrical anode
6 Installer setup > Operation setup ......................42-46
6.1 Heat
6.2 Cool
6.3 Auto
6.4 Tank
7 Installer setup > Service setup ..........................46-47
7.1 Pump maximum speed
7.2 Pump down
7.3 Dry concrete
7.4 Service contact
8 Installer setup > Remote control setup ...................47
Cleaning instructions .................................................48-49
Troubleshooting .........................................................50-51
Information .................................................................52-53
Thank you for purchasing Panasonic product.
Installation Instructions attached.
Serial number and production year please refer to name plate.

Before use, make sure the system has been installed correctly by an
authorised dealer according to the given instructions.
• Panasonic Air-to-Water is a split system, consisting of two units: indoor and outdoor units. The indoor unit consist of the hydromodule
and 200L sanitary water tank.
• These operating instructions describe how to operate the system using the indoor and outdoor units.
• As for the operation of other products such as radiator, external thermo controller, and underfloor units, refer to the operating instructions
of each product.
• System could be locked to operate in HEAT mode and disable COOL mode.
• Some functions described in this manual may not be applicable to your system.
• Ensure that incoming water is clean. When water tapped from a private well or spring water, it may be necessary to supplement with an
extra water filter.
• Do avoid using water containing salt, acid, and other impurities which may corrode the tank and its component.
• Consult your nearest authorised dealer for further information.
*1The system is locked to operate without COOL mode. It can be unlocked only by authorised installers or our authorised service partners.
*2Only displayed when COOL mode is unlocked (This means when COOL mode is available)
System overview
Radiator
Shower
Fan Coil
Unit
Floor
Heating
Outdoor Unit
Solar Panel
Power Supply
Indoor Unit
(Structure of the unit may vary depending
on the model)
Remote Controller
Front Plate
Operating conditions
WH-UXZ series *1, *2 COOLING (CIRCUIT)
HEATING (TANK) HEATING (CIRCUIT)
Water outlet temperature (°C)
(Min. / Max.) - / 65*320 / 55 (Below Ambient -15 °C) *4
20 / 60 (Above Ambient -10 °C) *45 / 20
Outdoor ambient temperature (°C)
(Min. / Max.) -28 / 35 10 / 43
When the outdoor temperature is out of the range in the table, the heating capacity will drop significantly and the outdoor unit may stop
operating for its protection.
The unit will restart automatically after the outdoor temperature returns to the specified range.
*3Above 55 °C, only possible with backup heater operation.
*4Between outdoor ambient -10 °C and -15 °C, the water outlet temperature gradually decreases from 60 °C to 55 °C.
3
Tap
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.
Note:
Not recommended to open the Front Plate.
(For authorised dealer/specialist use only)
Children aged from 3 to 8 years are only allowed to operate the tap connected to the water heater.

4
Safety precautions
To prevent personal injury, injury to others
or property damage, please comply with the
following:
Incorrect operation due to failure to follow
instructions below may cause harm or
damage, the seriousness of which is classified
as below:
WARNING
This sign
warns of
death or
serious
injury.
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.
WARNING
Indoor unit and outdoor unit
This appliance can be used by
children aged from 3 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 an authorised dealer
or specialist to clean the internal
parts, repair, install, remove,
disassemble and reinstall the unit.
Improper 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.

5
Do not insert your fingers or
other objects into the Air to
water indoor or outdoor unit,
rotating parts may cause injury.
Do not touch the outdoor unit during
lightning, it may cause electric shock.
Do not sit or step on the unit,
you may fall down accidentally.
Do not install the indoor unit outdoors.
This is designed for indoor installation
only.
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.
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.
This unit is equipped with Residual
Current Circuit Breaker/Earth
Leakage Circuit Breaker (RCCB/
ELCB). Ask an authorised dealer
to check RCCB/ELCB operation
regularly, especially after installation,
inspection, and maintenance. RCCB/
ELCB malfunction may result in
electric shock and/or fire.
It is strongly recommended that Install
Residual Current Device (RCD)
on-site to prevent electric shock and/
or fire.
Before obtaining access to
terminals, all supply circuits must be
disconnected.
Stop using the product if any
abnormality/failure occurs and
disconnect the power supply.
(Risk of smoke/fire/electric
shock)
Examples of abnormality/failure
•RCCB/ELCB trips frequently.
•Burning smell is observed.
•Abnormal noise or vibration of the
unit is observed.
•Hot water leaks from the indoor unit.
Contact your local dealer immediately
for maintenance/repair.
Wear gloves during inspection and
maintenance.
This equipment must be earthed to
prevent electrical shock or fire.
Prevent electric shock by switching off
the power supply:
-Before cleaning or servicing,
-When extended non-use.
This appliance is for multiple uses. To
avoid electric shock, burn and/or fatal
injury, make sure to disconnect all
power supplies before accessing any
terminal in the indoor unit.

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 install the unit close to
any combustibles or at bathroom.
Otherwise, it may cause electric
shock and/or fire.
Do not touch the sharp
aluminium fin, sharp parts
may cause injury.
Do not use the system during
sterilisation in order to prevent
scalding with hot water, or
overheating of shower.
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.
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 Controller
Do not wet the Remote Controller.
Failure to do so may result in electric
shock and/or fire.
Do not press the buttons on the
Remote Controller using hard and
sharp objects. Failure to do so may
cause damage to the unit.
Do not wash the Remote Controller
using water, benzine, thinner or
scouring powder.
Do not inspect or maintain the
Remote Controller by yourself.
Consult an authorised dealer in order
to prevent personal injury caused by
incorrect operation.

7
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 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
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
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.
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 fittings
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, field-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.

9
1. Installation (Space)
•Product with flammable refrigerants,
shall be installed according to the
minimum room area, Amin (m²)
mentioned in Installation Instructions.
•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.
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
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.

10
Safety precautions
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.
•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
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 refrigerating 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.