WHADF0309J3E5CM - Air Conditioning PANASONIC - Free user manual and instructions

USER MANUAL WHADF0309J3E5CM PANASONIC

5.6 Buffer tank connection

5.10 Solar connection

Cleaning instructions ......................................................35 Troubleshooting .........................................................36-37 Information .................................................................38-39 Thank you for purchasing Panasonic product. Before operating the system, please read these operating instructions thoroughly and keep them for future reference. 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 underfl oor units, refer to the operating instructions of each product.

• Some functions described in this manual may not be applicable to your system.

• Must use water that complies with European water quality standard 98/83 EC. The lifespan of the Tank Unit will be shorter if groundwater (include spring water and well water) is used.

• The Tank Unit shall not be used with the tap water containing contaminants such as salt, acid, and other impurities which may corrode the tank and its component.

• Consult your nearest authorised dealer for further information.

-15 / 35 When the outdoor temperature is out of the range in the table, the heating capacity will drop signifi cantly and the outdoor unit may stop operating for its protection. The unit will restart automatically after the outdoor temperature returns to the specifi ed range.

Above 45 °C (Other indoor unit run in heat mode below ambient -5 °C) or 55 °C (Air to water unit on only at all ambient Or other indoor unit run in heat mode above ambient -5 °C) only possible with backup heater operation.

Above 45 °C (Other indoor unit run in heat mode below ambient -5 °C) only possible with backup heater operation.

Under heat recovery mode, the outdoor ambient operating range from -15 °C to 46 °C.

System overview Radiator Shower Fan Coil Unit Floor Heating Outdoor Unit Solar Panel Power Supply 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) Indoor Unit Front Plate Remote Controller4 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 an authorised dealer or specialist to clean the internal parts, repair, install, remove, disassemble 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.5 Do not insert your fi ngers 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 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. 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. 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 fi re. It is strongly recommended that Install Residual Current Device (RCD) on-site to prevent electric shock and/ or fi re. 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/fi re/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 fi re. 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.

Safety precautions6 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 fi re. Do not touch the sharp aluminium fi n, 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,

-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 fi re. 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 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 A min (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 Installation instructions table for A min (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.

• 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.9

1. Installation (Space)

• Product with fl ammable refrigerants, shall be installed according to the minimum room area, A min (m²) mentioned in 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.

2-1. 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.

• 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

fi re extinguisher adjacent to the charging area.11 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. 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.

• 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.

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.13

4. Repair to intrinsically safe

• 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.

• 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.

• 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. 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

• 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.

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.15

• 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).

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.

• 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.

• 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.17 Remote Controller buttons and display Buttons / Indicator

Quick Menu button (For more details, refer to the separate Quick Menu Guide.)

ON/OFF button Starts/Stops operation

Operation indicator Illuminates during operation, blinks during alarm. Press centre No glove No pen

• HEAT operation is either turned ON or OFF.

• The outdoor unit provides heat to the system. TANK • TANK operation is either turned ON or OFF.

• The outdoor unit provides heat to the water tank. HEAT + TANK

• The outdoor unit provides heat to the water tank and the system.

• This mode can be selected only when the water tank is installed.

• The direction icons point to the currently active mode.

• Room operation / Tank operation.

Operation icons The status of operation is displayed. Icon will not display (under operation OFF screen) whenever operation is OFF except weekly timer. Holiday operation status Weekly Timer operation status Quiet operation status Zone: Room Thermostat

Initialization Before starting to install the various menu settings, please initiate the Remote Controller by selecting the language of operation and installing the date and time correctly. When power is turned on for the fi rst time, it becomes the setting screen automatically. It can also be set from personal setting of the menu. Selecting the language LCD blinking Wait while the display is initializing. When initializing screen ends, it turns to normal screen. When any button is pressed, language setting screen appears.

Scroll with and to select the language.

Press to confi rm the selection. Setting the clock

Select with or how to display the time, either 24h or am/pm format (for example, 15:00 or 3:00 pm).

Press to confi rm the selection.

Use and to select year, month, day, hour and minutes. (Select and move with and press to confi rm.)

Once the time is set, time and day will appear on the display even if the Remote Controller is turned OFF. 3 Temperature of each zone 4 Time and day 5 Water Tank temperature 6 Outdoor temperature 7 Sensor type/Set temperature type icons Water Temperature

• Compensation curve Water Temperature

Remote Controller buttons and display / Initialization20 Menus For user Select menus and determine settings according to the system available in the household. All initial settings must be done by an authorised dealer or a specialist. It is recommended that all alterations of the initial settings are also done by an authorised dealer or a specialist.

• After initial installation, you may manually adjust the settings.

• The initial setting remains active until the user changes it.

• The Remote Controller can be used for multiple installations.

• Ensure the operation indicator is OFF before setting.

• The system may not work properly if set wrongly. Please consult an authorised dealer. To display <Main Menu>: To select menu: To confi rm the selected content: After the initial settings have been completed, you can select a quick menu from the following options and edit the setting.

Weekly timer Once the weekly timer is set up, User can edit from Quick Menu. To set up to 6 patterns of operation on a daily basis.

• Disabled if Force Heater is on. Timer setup Select day of the week and set the patterns needed (Time / Operation ON/OFF / Mode) Timer copy Select day of the week21 Menu Default Setting Setting Options / Display

Holiday timer To save energy, a holiday period may be set to either turn OFF the system or lower the temperature during the period. OFF

Holiday start and end. Date and time OFF or lowered temperature

• Weekly timer setting may be temporarily disabled during Holiday timer setting but it will be restored once the Holiday timer is completed.

Quiet timer To operate quietly during the preset period. 6 patterns may be set. Level 0 means the mode is off. Time to start Quiet : Date and time Level of quietness: 0 ~ 3

Room heater To set the room heater ON or OFF. OFF

Tank heater To set the tank heater ON or OFF. OFF

• Do not use the system during sterilization in order to prevent scalding with hot water, or overheating of shower.

• Ask an authorised dealer to determine the level of sterilization function fi eld settings according to the local laws and regulations.

• Standard mode have faster DHW Tank heat up time. Meanwhile Smart mode take longer time to heat up DHW time with lower energy consumption. Standard To set the tank sensor to Top or Center.

• Selection of the tank sensor to top slow down the start of boiling up the tank and reduce power consumption. Please change this selection to “Center” when the hot water becomes insuffi cient. Top Menus For user

Energy monitor Historical chart of energy consumption, generation. Historical chart Select and retrieve

• For historical chart, the period is selected from 1 day/1 week/1year.

• Energy consumption (kWh) of total may be retrieved.

• The total power consumption is an estimated value based on AC 230 V and may differ from value measured by precise equipment.

System information Shows all system information in each area. Actual system information of 10 items: Inlet / Outlet / Zone 1 / Zone 2 / Tank / Buffer tank / Solar / Pool / COMP frequency / Pump fl owrate Select and retrieve

• The most recent error code is displayed at the top. Select and retrieve

Compressor Shows the compressor performance. Select and retrieve

Heater Total hours of ON time for Room heater/Tank heater. Select and retrieve 3 Personal setup

Backlight Sets the duration of screen backlight. 1 min

Backlight intensity Sets screen backlight brightness.

Clock format Sets the type of clock display. 24h

Date & Time Sets the present date and time. Year / Month / Day / Hour / Min

• For Greek, please refer to the English version.

Unlock password 4 digit password for all the settings.

Optional PCB connectivity To connect to the external PCB required for servicing.

• If the external PCB is connected (optional), the system will have following additional functions:

Buffer tank connection and control over its function and temperature.

Control over 2 zones (including the swimming pool and the function to heat water in it).

Solar function (the solar thermal panels connected to either the DHW (Domestic Hot Water) Tank or the Buffer Tank.

• DHW is not applicable for WH-ADC *models.

External compressor switch.

Zone & Sensor To select the sensors and to select either 1 zone or 2 zone system. Zone

• After selecting 1 or 2 zone system, proceed to the selection of room or swimming pool.

• If the swimming pool is selected, the temperature must be selected for T temperature between 0°C ~ 10 °C. Sensor

• For room thermostat, there is a further selection of external or internal.

• Options of kW vary depending on the model.

Anti freezing To activate or deactivate the water freeze prevention when the system is OFF Yes

DHW capacity To select tank heating capacity to variable or standard. Variable capacity heat up tank with fast mode and keep the tank temperature with effi cient mode. While standard capacity heat up tank with rated heating capacity. Variable25 Menu Default Setting Setting Options / Display

Buffer tank connection To connect tank to the system and if selected YES, to set T temperature.

Yes 5 °C Set T for Buffer Tank

Tank heater Set the internal tank heater delay turn ON after heat pump operation.

• Heater will turn ON only if Backup heater “enabled” and Tank heater “ON” condition. Internal 1:30

• This selection only display to select when optional pcb connection set to Yes. Auto

Menus26 Menus For installer Menu Default Setting Setting Options / Display To select a bivalent connection to allow an additional heat source such as a boiler to heat- up the buffer tank and domestic hot water tank when heatpump capacity is insuffi cient at low outdoor temperature. The bivalent feature can be set-up either in alternative mode (heatpump and boiler operate alternately), or in parallel mode (both heatpump and boiler operate simultaneously), or in advance parallel mode (heatpump operates and boiler turns on for buffer-tank and/or domestic hot water depending on the control pattern setting options). Yes Auto -5 °C Set outdoor temperature for turn ON Bivalent connection. Yes After selecting the outdoor temperature Control pattern Alternative / Parallel / Advanced parallel

• Select advanced parallel for bivalent use of the tanks. Control pattern Alternative OFF Option to set external pump either ON or OFF during bivalent operation. Set to ON if system is simple bivalent connection. Control pattern Advanced parallel Heat Selection of the tank

• “Heat” implies Buffer Tank and “DHW” implies Domestic Hot Water Tank. Control pattern Advanced parallel Heat Yes

• Buffer Tank is activated only after selecting “Yes”. -8 °C Set the temperature threshold to start the bivalent heat source. 0:30 Delay timer to start the bivalent heat source (in hour and minutes). -2 °C Set the temperature threshold to stop the bivalent heat source.27 Menu Default Setting Setting Options / Display 0:30 Delay timer to stop the bivalent heat source (in hour and minutes). Control pattern Advanced parallel DHW Yes

• DHW Tank is activated only after selecting “Yes”. 0:30 Delay timer to start the bivalent heat source (in hour and minutes). SG ready input control for bivalent system follow below input condition. Yes SG ready OFF Option to set external pump either ON or OFF during bivalent operation. Set to ON if system is simple bivalent connection. SG signal Operation pattern Vcc-bit1 Vcc-bit2 Open Open Heat Pump OFF, Boiler OFF Short Open Heat Pump ON, Boiler OFF Open Short Heat Pump OFF, Boiler ON Short Short Heat Pump ON, Boiler ON

• DHW is not applicable for WH-ADC *models.

Yes Buffer tank Selection of the tank Yes After selecting the tank 10 °C Set T ON temperature

Menus28 Menus For installer Menu Default Setting Setting Options / Display Yes After selecting the tank T ON temperature 5 °C Set T OFF temperature Yes After selecting the tank T ON temperature T OFF temperature 5 °C Set Antifreeze temperature Yes After selecting the tank T ON temperature T OFF temperature After setting the antifreeze temperature 80 °C Set Hi limit

Force heater To turn on Force heater either manually (by default) or automatically. Manual

Defrost signal To turn on defrost signal to stop fan coil during defrost operation. (If defrost signal set to yes, bivalent function will not available to use)

Force DHW To turn on Tank only mode to heat up tank temperature by request priority heating from outdoor unit.

• Under force DHW operation, Air to Air unit will stop provide room heating operation. Manual

DHW Defrost Allow system to run defrost by using hot water instead of room unit to provide comfort room heating operation.

• Outdoor defi ne the condition to enter DHW defrost only when water is hot. Yes

Menus30 Menus For installer Menu Default Setting Setting Options / Display 6 Installer setup Operation setup To access to the two major functions or modes. 2 main modes Heat / Tank

Heat To set various water & ambient temperatures for heating. Water temp. for heating ON / Outdoor temp. for heating OFF / T for heating ON / Heater ON/OFF Water temp. for heating ON Compensation curve Heating ON temperatures in compensation curve or direct input. Water temp. for heating ON Compensation curve X axis: -5 °C, 15 °C Y axis: 55 °C, 35 °C Input the 4 temperature points (2 on horizontal X axis, 2 on vertical Y axis).

• If 2 zone system is selected, the 4 temperature points must also be input for Zone

• “Zone 1” and “Zone 2” will not appear on the display if only 1 zone system. Water temp. for heating ON Direct 35 °C Temperature for heating ON

• Min. ~ Max. range is conditional as follows:

CU-2WZ71YBE5 : 20 °C ~ 55 °C

• If 2 zone system is selected, temperature set point must input for Zone 2.

• “Zone 1” and “Zone 2” will not appear on the display if only 1 zone system.31 Menu Default Setting Setting Options / Display Outdoor temp. for heating OFF 24 °C Temperature for heating OFF T for heating ON 5 °C Set T for heating ON.

• This setting will not available to set when pump fl owrate set to Max. duty. Heater ON/OFF Heater ON/OFF Outdoor temp. for heater ON 0 °C Temperature for heater ON Heater ON/OFF Delay time for heater ON 0:30 min Delay time for heater to turn on Heater ON/OFF Water temperature for heater ON -4 °C Setting of water temperature to turn on from water set temperature. Heater ON/OFF Water temperature for heater OFF -2 °C Setting of water temperature to turn off from water set temperature.

Tank Setting functions for the tank. Floor operation time (max) / Tank heat up time (max) / Tank re-heat temp. / Sterilization

• The display will show 3 functions at a time. Floor operation time (max) 8:00 Maximum time for fl oor operation (in hours and minutes) Tank heat up time (max) 1:00 Maximum time for heating the tank (in hours and minutes) Tank re-heat temp. -8 °C Set temperature to perform reboil of tank water. Sterilization Monday Sterilization may be set for 1 or more days of the week. Sun / Mon / Tue / Wed / Thu / Fri / Sat Sterilization: Time 12:00 Time of the selected day(s) of the week to sterilize the tank 0:00 ~ 23:59 Sterilization: Boiling temp. 65 °C Set boiling temperatures for sterilize the tank.33 Menu Default Setting Setting Options / Display Sterilization: Ope. time (max) 0:10 Set sterilizing time (in hours and minutes) Force DHW:Start Temp. 35 °C Set auto Force DHW activate temperature 7 Installer setup Service setup

Pump maximum speed To set the maximum speed of the pump. Setting the fl ow rate, max. duty and operation ON/OFF of the pump. Flow rate: XX:X L/min Max. Duty: 0x40 ~ 0xFE, Pump: ON/OFF/Air Purge

Dry concrete To dry the concrete (fl oor, walls, etc.) during construction. Do not use this menu for any other purposes and in period other than during construction Edit to set the temperature of dry concrete. ON / Edit Edit Stages: 1 Temperature: 25 °C Heating temperature for drying the concrete. Select the desired stages: 1 ~ 10, range: 1 ~ 99

Confi rm the setting temperatures of dry concrete for each stage.

• In order to ensure optimal performance of the units, user may inspect and clear any obstruction on the air inlet and outlet vents of the outdoor unit.

• Users should not try to service or replace parts of the unit.

• Contact authorised dealer for scheduled inspection. Dealer
• In order to ensure safety and optimal performance of the units, seasonal inspections on the units, functional check of RCCB/ELCB, fi eld wiring and piping have to be carried out at regular intervals by authorised dealer.

• Specifi c to the Sanitary Water Tank, it is important to service the Water Filter Set periodically. Sanitary Water Tank Indoor unit

• Do not splash water directly. Wipe the unit gently with a soft dry cloth. To ensure optimal performance of the system, cleaning has to be carried out at regular intervals. Consult an authorised dealer.

• Disconnect the power supply before cleaning.

• Do not use benzine, thinner or scouring powder.

• Use only soap ( pH7) or neutral household detergent.

• Do not use water hotter than 40 °C. Water fi lter

• Clean the water fi lter at least once a year. Failure to do so may cause the fi lter to clog up, which may lead to system breakdown. Consult an authorised dealer.

• Please also remove dust on the magnet. Water Filter Set Outdoor unit

• Do not obstruct the air inlet and outlet vents. Failure to do so may result in low performance or system breakdown. Remove any obstruction to assure the ventilation.

• When it snows, clean and remove snow around the outdoor unit to prevent the air inlet and outlet vents from being covered with snow. For extended non-use

• The water inside the Sanitary Water Tank should be drained.

• Disconnect the power supply. Non serviceable criteria Disconnect the power supply then please consult an authorised dealer under the following conditions:

• Abnormal noise during operation.

• Water/foreign particles have entered the Remote Controller.

• Water leaks from the indoor unit.

• Circuit breaker switches off frequently.

• Power cord becomes excessively warm.

Water pressure gauge

• Do not press or hit the glass cover using hard and sharp objects. Failure to do so may cause damage to the unit.

• Ensure that the water pressure is between 0.05 and 0.3 MPa (0.1 MPa = 1 bar).

• In case the water pressure is out of the above range, consult an authorised dealer.

Cleaning instructions Menus / Cleaning instructions36 Troubleshooting The following symptoms do not indicate malfunction. Symptom Cause Water fl owing sound during operation. • Refrigerant fl ow inside the unit. Operation is delayed a few minutes after restarting.

• The delay is a protection for the compressor. Outdoor unit emits water/steam. • Condensation or evaporation occurring in the pipes. Steam comes out of the outdoor unit in the heating mode.

• It is caused by defrost operation in the heat exchanger. Outdoor unit does not operate. • It is caused by the protection control of the system when outdoor temperature is out of the operating range. System operation switches off. • It is caused by the protection control of the system. When the water inlet temperature is lower than 10 °C, the compressor stops and the backup heater power turns on. System is hard to heat up. • When the panel and the fl oor are heated simultaneously, warm water temperature may decrease, which may reduce the heating ability of the system.

• When the outdoor air temperature is low, the system may need longer time to heat up.

• Discharge outlet or intake inlet in the outdoor unit is blocked by some obstacle, such as a pile of snow.

• When the preset water outlet temperature is low, the system may need longer time to heat up. System does not heat up instantly. • System will take some time to heat up the water if it starts to operate at cold water temperature. Backup heater is automatically turned ON when it is disabled.

• It is caused by the protection control of the indoor unit heat exchanger. Operation starts automatically when the timer is not set.

• Sterilization timer has been set. Loud refrigerant noise continues for several minutes.

• It is caused by protection control during deice operation at outdoor ambient temperature lower than -10 °C. COOL mode is unavailable. • System has locked to operate in HEAT mode only. Check the following before calling for servicing. Symptom Check Operation in HEAT mode is not working effi ciently.

• Set the temperature correctly.

• Close the panel heater/cooler valve.

• Clear any obstruction in the air inlet and air outlet vents of the outdoor unit. Noisy during operation. • Outdoor unit or indoor unit has been installed at an incline.

• Close the cover properly. System does not work. • Circuit breaker has tripped/activated. Operation LED is not lit or nothing is displayed on the Remote Controller.

• Power supply is working correctly, or a power failure has occurred.37 Blinking Error number Below is a list of error codes that may appear on the display when there is some trouble with the system setting or operation. When the display shows an error code as indicated below, contact the number registered in the Remote Controller or a nearest authorised installer. All switches are disabled except and . Error No. Error explanation H12 Capacity mismatch H15 Compressor sensor error H20 Pump error H23 Refrigerant sensor error H27 Service valve error H28 Solar sensor error H31 Pool sensor error H36 Buffer tank sensor error H38 Brand mismatch error H41 Indoor or standby unit error H42 Low pressure protection H43 Zone 1 sensor error H44 Zone 2 sensor error H51 Gas pipe sensor error H53 Liquid pipe sensor error H62 Water fl ow error H63 Low pressure sensor error H64 High pressure sensor error H65 Deice water circulation error H67 External thermistor 1 error H68 External thermistor 2 error H70 Back-up heater OLP error H72 Tank sensor error H74 PCB communication error H75 Low water temp protection H76 RC-Indoor communication error H90 Indoor-Outdoor communication error H91 Tank heater OLP error H95 Voltage connection error Error No. Error explanation H98 High pressure protection H99 Indoor freeze prevention F12 Pressure switch activated F14 Poor compressor rotation F15 Fan motor lock error F16 Current protection F20 Compressor overload protection F22 Transistor module overload protection F23 DC peak F24 Refrigerant cycle error F25 Cool / heat cycle error F27 Pressure switch error F29 Low discharge super heat F30 Water outlet sensor 2 error F32 Internal thermostat error F33 Freezing of standby unit error F36 Outdoor ambient sensor error F37 Water inlet sensor error F40 Outdoor discharge sensor error F41 Power factor correction error F42 Outdoor heat exchanger sensor error F43 Outdoor defrost sensor error F45 Water outlet sensor error F46 Current transformer disconnection F48 Evaporator outlet sensor error F49 Bypass outlet sensor error F95 Cooling high pressure error

• Some error code may not be applicable to your model. Consult authorised dealer for clarifi cation.

Troubleshooting38 Information Information for Users on Collection and Disposal of Old Equipment This symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic products must not be mixed with general household waste. For proper treatment, recovery and recycling of old products, please take them to applicable collection points in accordance with your national legislation. By disposing of these products correctly, you will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate waste handling. For more information about collection and recycling of old products, please contact your local municipality, your waste disposal service or the point of sale where you purchased the items. Penalties may be applicable for incorrect disposal of this waste, in accordance with national legislation. European Union and some other European countries If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information. [Information on Disposal in other Countries outside the European Union] These symbols are only valid in the European Union. If you wish to discard these items, please contact your local authorities or dealer and ask for the correct method of disposal. Information when connect to Network Adaptor (Optional Accessories Part) WARNING Before use, check the safety around the Air-to-Water system. Confi rm human and living objects at surrounding before operation. Incorrect operation due to failure to follow instructions may cause harm and damage. Confi rm the below before operation (inside premises) - Timer setting condition. Unpredictable on/off operation may cause serious injury or damage to human and living objects. Confi rm the below before and during operation (outside from premises) - If is known someone in the premises, notify the person from outside of new operation setting prior executing. This is to avoid sudden shock to the person and any serious health breakdown duly from operation changed. - Please do not use this appliance when infant, physical dissability person or elderly who unable to operate the appliance by themselves in the premises. - Check the setting and operation status frequently. - Stop the operation when error code is displayed and consult an authorised dealer or specialist. Please confi rm before use

• The system may not usable when communication condition is bad. Please check “Operation Status” from the application display after operation. The following condition may happen in the remote operation. - Cannot operate, operation time is not refl ected. - Air-to-Water operation is not refl ected when operation is set outside of premises.

• It is recommended to lock screen the smart phone device to prevent miss-operation.

• Do not use other remote control, communication and operation device not specifi ed by an authorised dealer or specialist.

• Use under the agreement of “Terms of Service” and “Handling of Personal Information” of Panasonic Smart Application.

• For extended non-use of Panasonic Smart Application, disconnect the network adaptor from the device.39 WARNING This symbol shows that this equipment uses a fl ammable refrigerant. If the refrigerant is leaked, together with an external ignition source, there is a possibility of ignition. This symbol shows that the Operation Instructions should be read carefully. This symbol shows that a service personnel should be handling this equipment with reference to the Installation Instructions. This symbol shows that there is information included in the Operation Instructions and/or Installation Instructions.

5.6 Buffer tank connection