PANASONIC WH-ADC0309K3E5UK (01) PDF Document

Please adhere to the following safety precautions. Incorrect installation or handling can cause serious harm or damage.

WARNINGS:

• Do not use any means to accelerate the defrosting process other than those recommended by the manufacturer.

• Do not pierce or burn the appliance as it is pressurized. Do not expose it to heat, flame, sparks, or other ignition sources.

• This equipment must be properly earthed. Do not connect the earth line to gas pipes, water pipes, lightning rods, or telephone lines.

• Electrical work must be performed by a licensed electrician following national regulations and installation instructions. Use an independent circuit and single outlet.

• For refrigeration system work, use piping, flare nuts, and tools specified for R32 refrigerant. Using existing (R22) piping is not allowed.

• Engage an authorized dealer or specialist for installation. Incorrect installation can lead to water leakage, electrical shock, or fire.

• During installation, install the refrigerant piping properly before running the compressor.

• During pump down, stop the compressor before removing the refrigeration piping.

• Be aware that refrigerants may not contain an odor.

CAUTIONS:

• Do not install the Tank Unit where flammable gas leakage may occur.

• Do not release refrigerant during piping work. Take care of liquid refrigerant to avoid frostbite.

• Do not touch the sharp aluminum fins on the outdoor unit.

• Carry out drainage piping as instructed. If drainage is not perfect, water may enter the room and damage furniture.

• Power supply connection to the Tank Unit must be permanent via a circuit breaker. For your model with the WH-UDZ03KE5 outdoor unit, use an approved 15/16A 2-poles circuit breaker for Power Supply 1 and an approved 16A 2-poles circuit breaker for Power Supply 2, both with a minimum contact gap of 3.0mm.

The PANASONIC WH-ADC0309K3E5UK uses R32 refrigerant. Basic installation procedures are similar to conventional models (R410A, R22), but you must pay careful attention to the following points:

General Precautions:

• Operation, maintenance, repair, and refrigerant recovery must be carried out by trained and certified personnel.

• Do not locate any part of the refrigerating circuit (evaporators, condensers, etc.) or piping near heat sources, open flames, or operating gas/electric heaters.

• Ensure ventilation openings in occupied spaces are kept clear of obstruction.

• A logbook must be maintained for all checks performed on alarms, mechanical ventilation, and detectors.

• Piping must be protected against accidental damage, vibration, or pulsation.

Installation:

• Ensure pipe-work installation is kept to a minimum. Avoid using dented pipe and do not allow sharp bending.

• Comply with national gas regulations and notify relevant authorities as required.

• Field-made refrigerant joints indoors must be tightness tested. The test method should have a sensitivity of 5 grams per year of refrigerant or better.

Servicing:

• Before working on systems with flammable refrigerants, safety checks are necessary to minimize the risk of ignition.

• Work must be done under a controlled procedure to minimize the risk of flammable gas or vapor being present.

• The work area must be checked with a refrigerant detector before and during work.

• Avoid working in confined spaces. Ensure a safety distance of at least 2 meters from any ignition source.

• No smoking signs must be displayed. All ignition sources, including cigarette smoking, must be kept far away.

• Ensure the area is well-ventilated before and during any work that involves breaking into the system.

Leak Detection:

• Under no circumstances should potential sources of ignition be used for detecting refrigerant leaks. A halide torch (or any detector using a naked flame) must not be used.

• Electronic leak detectors may be used, but sensitivity might need re-calibration in a refrigerant-free area.

Removal and Evacuation:

• When breaking into the refrigerant circuit for repairs, use the following procedure: remove refrigerant -> purge the circuit with inert gas (OFN – oxygen-free nitrogen) -> evacuate -> purge with inert gas -> open the circuit by cutting or brazing.

• Compressed air or oxygen must not be used for this task.

• The refrigerant charge must be recovered into the correct recovery cylinders.

Charging Procedures:

• Ensure contamination of different refrigerants does not occur when using charging equipment.

• Hoses or lines should be as short as possible to minimize the amount of refrigerant they contain.

• The refrigerating system must be earthed prior to charging.

• Do not overfill cylinders (no more than 80% volume liquid charge).

Decommissioning:

• Before carrying out this procedure, the technician must be completely familiar with the equipment.

• It is recommended that all refrigerants are recovered safely. An oil and refrigerant sample should be taken before the task begins.

• Ensure all personal protective equipment is available and used correctly, and the recovery process is supervised by a competent person.

The specifications for the PANASONIC WH-ADC0309K3E5UK (Indoor Unit) when paired with the WH-UDZ03KE5 (Outdoor Unit) are as follows:

Outdoor Unit Specifications (WH-UDZ03KE5)

Indoor Unit Specifications (WH-ADC0309K3E5UK)

The PANASONIC WH-ADC0309K3E5UK features several technologies for efficiency, safety, and ease of use:

• Inverter Technology: Provides energy savings by adjusting output power.

• High Efficiency: Optimized for performance.

• Environment Protection: Uses non-ozone depleting R32 refrigerant.

• Long Installation Piping: Supports piping up to 25 meters with a height difference of 20 meters.

• Easy to use control panel: Includes Auto mode, Holiday mode, Dry concrete function, and a Weekly timer setting.

• A-class energy efficiency pump: Water pump speed can be set via the control panel.

• Improved deice cycle: For better performance in cold conditions.

• Protection Features:

– Random auto restart after power failure.

– Gas leakage protection.

– Prevents compressor reverse cycle.

– Inner protector for the compressor.

• Serviceability Features:

– Breakdown Self Diagnosis function.

– System Status Check Buttons for servicing.

– System Pumpdown Button for servicing.

When power is turned on for the first time, you need to initialize the remote controller by setting the language and clock.

Selecting the language:

1. The display will show “Initializing…”. Wait for this screen to finish.

2. When any button is pressed, the language setting screen appears.

3. Scroll with the up and down arrow buttons to select your desired language.

4. Press the enter button to confirm the selection.

Setting the clock:

1. After setting the language, the clock format screen appears. Select “24h” or “am/pm” format using the up and down arrows.

2. Press the enter button to confirm.

3. The Date & Time screen will appear. Use the up and down arrows to select the year, month, day, hour, and minutes. Use the left and right arrows to move between fields. Press the enter button to confirm each selection.

4. Once the time is set, it will appear on the display even when the controller is off.

5. A final precaution screen will ask “Is O/D front grille fixed?”. Select “Yes” if the outdoor unit’s front grille is securely fixed. Select “No” if it is not yet fixed; a caution message will appear to remind you to fix it before operation.

The Quick Menu provides fast access to common functions. To access it, press the Quick Menu button on the remote controller. Use the arrow keys to select a menu item and press the enter button to turn it on or off.

Quick Menu Functions:

• Force DHW: Manually turns the Domestic Hot Water tank heating on or off. This is disabled if Force Heater is active.

• Powerful: Operates the heating/cooling system at maximum power for a set duration (30, 60, or 90 minutes). The operation starts approximately 1 minute after pressing the button.

• Quiet: Operates the outdoor unit more quietly at one of three levels. You can also set a timer for Quiet mode operation.

• Force Heater: Forces the backup heater to turn on. This is disabled if the unit is already in operation.

• Weekly Timer: Allows you to delete (cancel) or change the pre-set Weekly Timer settings.

• Force Defrost: Manually starts a defrost cycle for the outdoor unit pipes.

• Error Reset: Restores previous settings after an error has occurred. Ensure all units are off before selecting this.

• R/C Lock: Locks the remote controller to prevent accidental changes. To unlock, press any key and enter the 4-digit password. To reset a forgotten password, press the Quick Menu, Back, and Down arrow buttons simultaneously for 5 seconds while the unit is off.

To return to the Main Screen from the Quick Menu, press the Quick Menu button or the Back button.

To access the main menus, press the Menu button. Use the up and down arrow keys to navigate through the menu options and press the enter button to select an option.

The main menus are organized as follows:

1. Function setup:

• Weekly timer: Set up to 6 patterns of operation on a daily basis.

• Holiday timer: Set a period to turn the system OFF or lower the temperature to save energy.

• Quiet timer: Set periods for quiet operation.

• Quiet priority: Prioritize between sound level and heating/cooling capacity during Quiet mode.

• Room heater: Turn the room heater ON or OFF.

• Tank heater: Turn the tank heater ON or OFF.

• Sterilization: Set the auto sterilization function for the tank ON or OFF.

• DHW mode: Select Standard or Smart mode for Domestic Hot Water.

2. System check:

• Energy monitor: View present or historical charts of energy consumption and COP.

• System information: View real-time data for temperatures, frequencies, and pressures.

• Error history: View a log of past error codes.

• Compressor: View compressor performance data (frequency, ON counter, ON time).

• Heater: View total ON time for the room and tank heaters.

3. Personal setup:

• Remote control No.: Display the remote control number (RC-1 or RC-2).

• Touch sound: Turn the button press sound ON or OFF.

• LCD contrast: Adjust the screen contrast.

• Backlight: Set the duration the screen backlight stays on.

• Backlight intensity: Adjust the screen brightness.

• Clock format: Set 24h or am/pm time display.

• Date & Time: Set the current date and time.

• Language: Set the display language.

• Unlock password: Set a 4-digit password to lock settings.

4. Service contact:

• Contact 1 / Contact 2: View preset contact information for your installer.

1. Before the test run, ensure the following items have been checked:

a) Pipework is properly done.

b) Electric cable connecting work is properly done.

c) The Tank Unit is filled with water and trapped air is released.

d) Power is turned on to the power supply *after* filling the tank until full.

2. Switch ON the power supply to the Tank Unit. Set the Tank Unit RCCB/ELCB to the “ON” condition. Then, refer to the Operation Instruction for operation of the Remote Controller.

Note: During winter, turn on the power supply and let the unit standby for at least 15 minutes before the test run. This allows sufficient time to warm up the refrigerant and prevent incorrect error codes.

3. For normal operation, the Water Pressure reading on the remote controller should be between 0.05 MPa and 0.3 MPa (0.5 bar and 3 bar). If necessary, adjust the Water Pump speed to obtain the normal operating range. If adjusting the pump speed doesn’t solve the problem, contact your local authorized dealer.

4. After the test run is complete, please clean the Magnetic Water Filter Set and Water Filter Set. Reinstall them after cleaning.

WARNING: Strictly follow the steps below for a proper pump down procedure. An explosion may occur if the steps are not followed in sequence.

1. When the Tank Unit is not in operation (standby), enter the Service setup menu in the Remote Controller and select Pump down operation to turn it ON.

2. After 10-15 minutes (or 1-2 minutes in very low ambient temperatures < 10°C), fully close the 2-way valve on the Outdoor Unit.

3. After 3 minutes, fully close the 3-way valve on the Outdoor Unit.

4. Press the “OFF/ON” switch on the Remote Controller to stop the pump down operation.

5. Remove the refrigerant piping.

Important: Do not purge the air with refrigerants. Use a vacuum pump to vacuum the installation. There is no extra refrigerant in the outdoor unit for air purging. This test must be verified by a certified technician.

Preparation (Steps 1-2)

1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve.

2. Attach the gauge manifold set correctly and tightly. Ensure both valves of the manifold gauge are closed.

Evacuation (Steps 3-4)

3. Connect the center hose of the manifold gauge to a vacuum pump.

4. Turn on the vacuum pump, open the low-side manifold gauge valve, and vacuum until the gauge reads –76 cmHg (–0.1 MPa) or 500 microns. Continue for approximately ten minutes, then close the low-side manifold gauge valve.

Tightness Test with Inert Gas (Steps 5-8)

5. Remove the vacuum pump and connect the center hose to a cylinder of applicable inert gas (e.g., nitrogen).

6. Charge the system with the test gas until the pressure reaches a minimum of 1.04MPa (10.4barg).

7. Wait and monitor the pressure reading on the gauges for any pressure drop. Waiting time depends on the system size.

8. If there is a pressure drop, proceed to “Leak Detection”. If there is no pressure drop, proceed to “Recovery of Test Gas”.

Leak Detection and Repair (Steps 9-12)

9. Use a Gas Leak Detector (sensitivity of 5 grams/year or better) to check for leaks.

10. Move the probe along the system to check for leaks and mark any found.

11. Repair any detected leaks.

12. After repair, repeat the evacuation (Steps 3-4) and tightness test (Steps 5-7).

Recovery and Final Steps (Steps 13-18)

13. If no leak was found, recover the test gas and perform a final evacuation (Steps 3-4).

14. Disconnect the charging hose from the service port of the 3-way valve.

15. Tighten the service port caps of the 3-way valve to a torque of 18 N•m.

16. Remove the valve caps of both the 2-way and 3-way valves.

17. Open both valves using a hexagonal wrench (4mm). It’s recommended to open the 2-way valve slightly for 5 seconds and then close it, repeating this 3 times before fully opening both valves to allow refrigerant to flow slowly.

18. Mount the valve caps back onto the 2-way and 3-way valves to complete the process.

1. Press the main menu button and scroll to “System check”.

2. Press the enter button and scroll to “System information”.

3. Press the enter button and scroll through the pages using the up/down arrows to find “Water pressure”. The value will be displayed on the screen.

Error H12 indicates a mismatch between the indoor and outdoor units. This can be caused by a wrong model being connected, a wrong PCB being used, or a faulty PCB.

Troubleshooting Steps:

1. Check Installation Setup: Has the installation setup on the control panel been modified recently? If so, verify the model selection is correct.

2. Check for Recent Service: Has any indoor or outdoor PCB been replaced or serviced? If yes, proceed to the next step.

3. Verify Part Number: Check the spare part number of the PCB and compare it against the official parts list. Does it match the model?

• If No, change the indoor and/or outdoor PCB to the correct one for the specified model.

• If Yes, proceed to the next step.

4. Check Capacity Rank Setting: Has the capacity rank been set correctly on the control panel?

• If No, set the correct capacity rank.

• If Yes, check if the outdoor unit model and capacity are within the allowable range for your indoor unit.

– The WH-ADC0309K3E5UK is compatible with WH-UDZ03KE5, WH-UDZ05KE5, WH-UDZ07KE5, and WH-UDZ09KE5 outdoor units.

– If the connected model is incorrect, rectify the model selection or installation.

5. Final Step: After setting the capacity or making corrections, turn off the breaker, then turn it back on to operate the unit.

Here is a list of common error codes and their meanings for your PANASONIC WH-ADC0309K3E5UK:

WARNING: High voltage is present in electrical parts. Ensure the capacitor has fully discharged before proceeding with any repair work.

To Remove Front Plate and Top Plate:

1. Remove the 2 screws at the bottom of the Front Plate.

2. Slide the Front Plate upwards to unhook it and remove it.

3. To remove the Top Plate, remove the 8 screws at the top.

To Remove Remote Control:

1. Remove the top case from the bottom case using a flat-blade screwdriver to gently pry it open.

2. Disconnect the Remote Controller wiring.

3. Remove the 2 screws holding the bottom case and take it out.

To Remove RCCB:

1. Remove the 2 screws to swing the Control Board Cover open.

2. Disconnect the lead wires (Brown and Blue) from the RCCB.

3. Remove the screws and bracket to remove the RCCB.

To Remove Electronic Controller (Main PCB):

1. Disconnect all connectors from the main PCB.

2. Detach the remote controller, 3-way valve, and all associated wires.

To Remove Water Pump:

1. Disconnect the CN-PUMP1 connector from the electronic controller.

2. Disconnect the 2 pipes connected to the pump.

To Remove Water Filter:

1. Turn the Magnet Bar at the bottom of the Magnetic Water Filter Set to remove it.

2. Disconnect the 2 pipes connected to the filter.