Panasonic WH-WXG20ME8 Operating Instructions Manual

Air-to-water heatpump outdoor unit/air-to-water heatpump outdoor unit and indoor unit

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Operating Instructions

Air-to-Water Heatpump Outdoor Unit /

Air-to-Water Heatpump Outdoor Unit and Indoor Unit

Model No.

Outdoor Unit

WH-WXG20ME8

WH-WXG25ME8

WH-WXG30ME8

ENGLISH

Before operating the system, please read these

operating instructions thoroughly and keep them

for future reference.

WEB-ACXF55-41091-EN

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Do you have a question about the WH-WXG20ME8 and is the answer not in the manual?

Questions and answers

paul martin

May 1, 2025

CAN I GET DIMENSIONS AND WEIGHT INFO ON THESE UNITS PLEASE

1 comments:

Mr. Anderson

May 16, 2025

The Panasonic WH-WXG20ME8 unit has an outdoor depth of 460 mm and a net weight of 161 kg.

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Summary of Contents for Panasonic WH-WXG20ME8

Page 1 Operating Instructions Air-to-Water Heatpump Outdoor Unit / Air-to-Water Heatpump Outdoor Unit and Indoor Unit Model No. Outdoor Unit WH-WXG20ME8 WH-WXG25ME8 WH-WXG30ME8 ENGLISH Before operating the system, please read these operating instructions thoroughly and keep them for future reference. WEB-ACXF55-41091-EN...
Page 2 Thank you for purchasing Panasonic product. Installation Instructions attached. Serial number and production year please refer to name plate. Table of contents System overview ..............3 For installer Operating conditions ............3 5 Installer setup > System setup ......32-44 Safety precautions ............4-16 5.1 Optional PCB connectivity...
Page 3 Before use, make sure the system has been installed correctly by an authorised dealer/specialist according to the given instructions. • Panasonic Air-to-Water is a system that consists of a single outdoor unit or two units: an indoor unit and an outdoor unit. The indoor unit consists of the control module. •...
Page 4 Safety precautions To prevent personal injury, injury to others WARNING or property damage, please comply with the following: Incorrect operation due to failure to follow instructions below may cause harm or Indoor unit and outdoor unit damage, the seriousness of which is classified This appliance can be used by as below:...
Page 5 Do not insert your fingers or Do not insert your fingers or A residual current protective device other objects into the Air to other objects into the Air to (RCD) must be installed on site to water indoor or outdoor unit, water indoor or outdoor unit, prevent electric shock or fire.
Page 6 Safety precautions Water piping in the occupied space CAUTION shall be installed in such a way to protect against accidental damage in operation and service. Indoor unit and outdoor unit Precautions shall be taken to avoid Do not wash the indoor unit with excessive vibration or pulsation to water, benzine, thinner or scouring Water piping.
Page 7 Precaution for using R290 WARNING refrigerant The mixing of different refrigerants This appliance is filled with within a system is prohibited. R290 (Extremely flammable gas, • Operation, maintenance, repairing safety A3 group per ISO 817). and refrigerant recovery should be If the refrigerant is leaked and carried out by trained and certified exposed to an external ignition...
Page 8 Safety precautions 1. Installation (Space) • Before a new refrigerating system is put into service, the person • Must ensure that water pipe-work responsible for placing the system shall be protected from physical in operation should ensure that damage. trained and certified operating •...
Page 9 2. Servicing 2-2. Work 2-1. Service personnel • Prior to beginning work on systems • The system is inspected, regularly containing flammable refrigerants, supervised and maintained by safety checks are necessary to a trained and certified service ensure that the risk of ignition personnel who is employed by the is minimised.
Page 10 Safety precautions 2-3. Checking for presence of 2-5. No ignition sources refrigerant • No person carrying out work in • The area shall be checked with an relation to a refrigerating system appropriate refrigerant detector prior shall use any sources of ignition in to and during work, to ensure the such a manner that it may lead to technician is aware of potentially...
Page 11 2-8. Checks to electrical devices 2-7. Checks to the refrigerating equipment • Repair and maintenance to electrical components shall include initial • Where electrical components are safety checks and component being changed, they shall be fit for the purpose and to the correct inspection procedures.
Page 12 Safety precautions 3. Repairs to sealed components 4. Repairs to intrinsically safe components • During repairs to sealed components, all electrical supplies • Do not apply any permanent shall be disconnected from the inductive or capacitance loads to equipment being worked upon prior the circuit without ensuring that to any removal of sealed covers, etc.
Page 13 8. Removal and evacuation 7. The following leak detection methods are deemed acceptable • When breaking into the refrigerant for all refrigerant systems circuit to make repairs – or for • No leaks shall be detected using any other purpose – conventional detection equipment with sensitivity procedures shall be used.
Page 14 Safety precautions • Ensure that the outlet for the vacuum 10. Decommissioning pump is not close to any potential • Before carrying out this procedure, ignition sources and there is it is essential that the technician ventilation available. is completely familiar with the equipment and all its details.
Page 15 12. Recovery h) When the cylinders have been filled correctly and the process • When removing refrigerant from completed, make sure that the a system, either for servicing or cylinders and the equipment decommissioning, it is recommended are removed from site promptly good practice that all refrigerants are and all isolation valves on the removed safely.
Page 16 Safety precautions • 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.
Page 17 Protective zone This outdoor unit is filled with R290 (Extremely flammable gas, safety A3 group per ISO 817). Note that this refrigerant has a higher density than air. In case of a refrigerant leak, the leaked refrigerant may accumulate near the ground. Prevent accumulation of refrigerant in any way that is potentially dangerous, explosive or risk suffocation.
Page 18 Remote Controller buttons and display The LCD display as shown in this manual are for instructional purpose only, and may differ from the actual unit. Buttons / Indicator 10:34am,Mon Quick Menu button 1.50 Back button 40 ˚ c 2344 Returns to the previous screen LCD Display 18 ˚...
Page 19 Display Mode selection AUTO • Depending on the preset outdoor COOL • COOL operation is either turned temperature, the system selects ON or OFF. HEAT or * COOL operation • The outdoor unit provides cooling mode. to the system. Auto Heat Auto Cool AUTO COOL...
Page 20 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 first time, it becomes the setting screen automatically. It can also be set from personal setting of the menu.
Page 21 Quick Menu After the initial settings have been completed, you can select a quick menu from the following options and edit the setting. 10:34am,Mon 1.50 40 ˚ c 2344 18 ˚ c ˚ c ˚ c to select menu. Press to display the quick menu.
Page 22 How to use the Quick Menu Force DHW Select this icon to turn the Tank DHW on or off. Press to con rm your selection. • Force DHW is turned off. • Force DHW is turned on. Note: • Force DHW is disabled when Force Heater is turned on. •...
Page 23 Quiet Select this icon to operate quietly. Press confirm your selection. (The quiet operation starts approximately 1 minute after is pressed.) • Quiet mode is set off. • The Quiet mode operates at level 1. • The Quiet mode operates at level 2. •...
Page 24 How to use the Quick Menu Force Heater Select to force the Heater on. Press confirm your selection. (The Force Heater mode starts approximately 1 minute after is pressed.) • Force Heater is turned off. • Force Heater is turned on. Note: •...
Page 25 Weekly Timer Select this icon to delete (cancel) or change the pre-set Weekly Timer. Press confirm your selection. • Timer is not ON. • Timer is set. Select “Yes”. • If you select “No”, the screen will return to the Main Screen. •...
Page 26 How to use the Quick Menu Force Defrost Select to defrost the frozen pipes. Press confirm your selection. (When the mode is accepted, below screen will be displayed.) Error Reset Select to restore the previous settings when error has occurred. Press confirm your selection.
Page 27 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.
Page 28 Please change this selection to “Center” when the hot water becomes insufficient. It is not displayed when the outdoor unit is used alone or depending on the settings. Only displayed when Tank connection is Yes. Only displayed when connect Panasonic AIR-TO-WATER CONTROL MODULE+TANK.
Page 29 t l u i t t i t t o i t 2 System check Energy monitor Present Present or historical chart of Select and retrieve energy consumption, generation Historical chart or COP. Total consumption (1year) Select and retrieve • COP= Coefficient of Performance.
Page 30 Menus For user t l u i t t i t t o i t 3 Personal setup Remote control No. • To display remote control number of a particular remote RC No. controller so that installer and RC-1 end user are well informed. Select and retrieve •...
Page 31 t l u i t t i t t o i t Language ENGLISH / FRANÇAIS / DEUTSCH / Sets the display language for ITALIANO / ESPAÑOL / DANISH / the top screen. SWEDISH / NORWEGIAN / POLISH / CZECH / NEDERLANDS / TÜRKÇE / SUOMI / MAGYAR / SLOVENŠČINA / HRVATSKI / LIETUVIŲ...
Page 32 Select RC-1 if main remote controller’s on the model. thermistor is to be used for room temperature control and vice versa. It is not displayed when the outdoor unit is used alone. It is not displayed when connect Panasonic AIR-TO-WATER CONTROL MODULE+TANK.
Page 33 To activate or deactivate the water freeze prevention when the system is OFF Tank connection To connect tank to the system. It is not displayed when the outdoor unit is used alone. It is not displayed when connect Panasonic AIR-TO-WATER CONTROL MODULE+TANK.
Page 34 To select an alternative outdoor sensor. Only displayed when Tank connection is Yes. It is not displayed when the outdoor unit is used alone and Panasonic AIR-TO-WATER CONTROL MODULE+TANK 2Zone model. It is not displayed when the outdoor unit is used alone.
Page 35 Menus For installer t l u i t t i t t o i t 5.11 Bivalent connection To select to enable or disable bivalent connection. To select either auto control pattern or SG ready input control pattern or smart control Auto pattern.
Page 36 t l u i t t i t t o i t Control pattern Advanced parallel Heat Yes • Buffer Tank is activated only after selecting “Yes”. Set the temperature -8 °C threshold to start the bivalent heat source. Delay timer to start the bivalent heat 0:30 source...
Page 37 Menus For installer t l u i t t i t t o i t Yes Smart To do settings related to electricity and boiler so that unit is able to determine whether Option to set external to operate heat pump or boiler pump either ON or at a particular period depends OFF during bivalent...
Page 38 t l u i t t i t t o i t Yes Smart After selecting for the external pump Schedule Season setting Season 1 : Dec (Refers to Winter Bivalent connection 10:34am,Mon season) Schedule Season 2 : Mar (Refers to Spring Season setting season) Schedule setting...
Page 39 Menus For installer t l u i t t i t t o i t - Range of start time displayed can be in “24h” Season 1 or “am/pm” format depend on setting of “Clock format”. 3.00 Select Confirm - Range of electricity price is 0 ~ 10 which Season 1 refers back to the 10 different electricity price set previously (under “Energy price >...
Page 40 t l u i t t i t t o i t Yes After selecting the tank T ON temperature T OFF temperature Set Antifreeze 5 °C temperature Yes After selecting the tank T ON temperature T OFF temperature After setting the antifreeze temperature 80 °C Set Hi limit 5.14...
Page 41 Menus For installer t l u i t t i t t o i t 5.17 External compressor SW Heater Heat source Heat source Select Confirm 5.18 Circulation liquid To select whether to circulate water or glycol in the system. Water 5.19 Heat-Cool SW...
Page 42 t l u i t t i t t o i t 5.23 Pump flowrate To set variable flow pump control or fix pump duty control. 5.24 DHW Defrost Allow system to run defrost by using hot water instead of room unit for better room comfort.
Page 43 Menus For installer t l u i t t i t t o i t Tank meter - Set Tank meter to Yes when this generation meter is connected. - It is to measure energy generation of heat pump unit during DHW operation*. * Only available if both Heat-cool meter and Tank connection are set to Yes.
Page 44 t l u i t t i t t o i t 5.28 Extra pump Selects whether the extra pump Heat is used in the circulation circuit for heating or in the circulation circuit for DHW, or it is not used. 11:34pm,Mon If set to “No”, the pump is not used.
Page 45 For installer t l u i t t i t t o i t 5.30 Static pressure If set to “No”, the fans in the outdoor unit rotate at a normal speed. If set to “YES”, the fans in the outdoor unit rotate at a higher speed than normal for response to high static pressure.
Page 46 t l u i t t i t t o i t 6 Installer setup Operation setup To access to the four major 4 main modes functions or modes. Heat / * Cool / * Auto / * Tank Heat To set various water &...
Page 47 Menus For installer t l u i t t i t t o i t Outdoor temp. for heating OFF Outdoor temp. for heating OFF Heat OFF outdoor temp. Set outdoor temp to stop heating. 24 °C Setting range is 6°C~35°C Outdoor temp.
Page 48 t l u i t t i t t o i t Heater ON/OFF Water temperature for heater OFF Setting of water temperature to turn -2 °C off from water set temperature. Cool To set various water & ambient Water temperatures for cooling ON temperatures for cooling.
Page 49 Menus For installer t l u i t t i t t o i t Auto Automatic switch from Heat to Outdoor temperatures for switching from Heat Cool or Cool to Heat. to Cool or Cool to Heat. Outdoor temp. for (Heat to Cool) / Outdoor temp.
Page 50 Service setup 11:34pm,Mon Flow rate Max. Duty Operation Flow rate: XX.X L/min Max. Duty: 0x46 ~ 0xC5, Pump: ON/OFF 0.0 L/min 0x50 Select Confirm When using external heater, 55°C ~ 75°C. Only displayed when Panasonic AIR-TO-WATER CONTROL MODULE+TANK 2Zone model.
Page 51 Menus For installer t l u i t t i t t o i t Dry concrete Edit to set the temperature of dry concrete. To dry the concrete ( oor, walls, etc.) during construction. ON / Edit Do not use this menu for any other purposes and in period other than during construction Edit...
Page 52 t l u i t t i t t o i t 8 Installer setup Remote control setup • To select whether to use one remote controller or two Selection of one remote controllers. or two remote • Select Single when controllers.
Page 53 Cleaning instructions To ensure optimal performance of the system, cleaning has to be carried out at regular intervals. Consult an authorised dealer/specialist. • Disconnect the power supply before cleaning. • Do not use benzine, thinner, scouring powder or hydrocarbon based solvent. •...
Page 54 Tips: For extended non-use Do not switch off the power supply. Switching off the power supply will stop the automatic water pump operation and will occur water leakage or breakage of parts due to water freezing.In Case of switch will be continuedoff,Drain water from water circuit. Info: Non serviceable criteria Disconnect the power supply then please consult an authorised dealer/specialist under the following conditions:...
Page 55 Troubleshooting The following symptoms do not indicate malfunction. Symptom Cause Water flowing sound during operation. • Refrigerant flow inside the unit. Operation delayed for a few minutes • The delay is a protection for the compressor. after restarting. The outdoor unit emits water/steam. •...
Page 56 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.
Page 57 • 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.
Page 58 Information Symbols: Explanation of symbols that may be present in this manual. This symbol shows that this This symbol shows that the equipment uses a flammable Operation Instructions should refrigerant with safety A3 group be read carefully. per ISO 817. If the refrigerant is leaked, together with an WARNING external ignition source, there is...
Page 59 1006, Oaza Kadoma, Kadoma City, Panasonic Testing Centre Osaka 571-8501, Japan Winsbergring 15, 22525 Hamburg, Germany Contact in the UK: Panasonic UK, a branch of Panasonic Marketing Europe GmbH Website: http://www.panasonic.com Maxis 2, Western Road, Bracknell, Berkshire, RG12 1RT © Panasonic Corporation 2024...

This manual is also suitable for:

Wh-wxg25me8 Wh-wxg30me8