Panasonic WH-ADC0309J3E5 Technical manual

Panasonic Aquarea air-to-water heat pumps 2022
Panasonic Aquarea air-to-water heat pumps
Planning and installation manual
for bi-bloc and mono-bloc systems

Notes:

3
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Panasonic Aquarea air-to-water heat pumps
Planning and installation manual
for bi-bloc and mono-bloc systems
Original Installation and Commissioning Instructions (English)
Version of the documentation: 02/2022
COPYRIGHT
© Panasonic Marketing Europe GmbH 2022. All rights reserved.
Copyrights and intellectual property rights
The copyright of this Manual remains with the manufacturer. No part of this Manual may be reproduced or processed using electronic systems, or
distributed in any form without the written consent of Panasonic Marketing Europe GmbH. Infringements which conict with the above-mentioned
information will render you liable for damages. All trademarks mentioned in this Manual are the property of the respective manufacturers and are
hereby acknowledged.

4Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Contents
Table of Contents
1 Range of Aquarea heat pump models.................................................................... 8
2 General...................................................................................................................... 10
3 Safety Notes ............................................................................................................. 12
3.1 General Safety Notes for preventing electric shocks and other hazards to health........... 12
3.2 General Safety Notes relating to preventing material damage............................................ 13
3.3 General further information .................................................................................................... 13
4 Product Description................................................................................................. 15
4.1 Operating Principle.................................................................................................................. 15
4.2 Heat Source .............................................................................................................................. 19
4.3 Heat pump................................................................................................................................. 20
4.3.1 Functioning and Characteristics....................................................................................... 20
4.3.2 Operating mode ............................................................................................................... 20
4.4 Heat use .................................................................................................................................... 21
4.4.1 Heating............................................................................................................................. 21
4.4.2 Domestic hot water production ........................................................................................ 21
4.4.3 Cooling............................................................................................................................. 22
4.5 Model types .............................................................................................................................. 23
4.5.1 Bi-bloc system and mono-bloc system ............................................................................ 23
4.5.2 Series............................................................................................................................... 24
4.5.3 Model code ...................................................................................................................... 25
4.6 Functions and technical data.................................................................................................. 27
4.6.1 Product features............................................................................................................... 27
4.6.2 Bi-bloc system.................................................................................................................. 28
4.6.2.1 Components ...................................................................................................................................... 29
4.6.2.2 Dimensions........................................................................................................................................ 34
4.6.2.3 Technical Data ................................................................................................................................... 40
4.6.3 Mono-bloc system............................................................................................................ 51
4.6.3.1 Components ...................................................................................................................................... 52
4.6.3.2 Dimensions........................................................................................................................................ 53
4.6.3.3 Technical Data ................................................................................................................................... 55
4.7 Control ...................................................................................................................................... 59
4.7.1 Remote controller............................................................................................................. 59
4.7.1.1 Remote controller for J and H generation models ............................................................................. 60
4.7.1.2 Design and functions of the remote controller ................................................................................... 60
4.7.1.3 Remote controller for F and G generation models ............................................................................ 65
4.7.2 External interfaces (inputs/outputs) ................................................................................. 65
4.7.2.1 External interfaces for J and H generation models............................................................................ 66
4.7.2.2 External interfaces for F and G generation models ........................................................................... 71

5
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Contents
4.8 Accessories.............................................................................................................................. 72
4.8.1 Domestic hot water tanks................................................................................................. 72
4.8.1.1 Stainless steel domestic hot water tanks........................................................................................... 73
4.8.1.2 Enamelled domestic hot water tanks................................................................................................. 75
4.8.2 Bu󰀨erTanks ..................................................................................................................... 81
4.8.3 Combo Tanks ................................................................................................................... 84
4.8.4 Residential ventilation unit with heat recovery................................................................. 87
4.8.5 Recommended on-site accessories................................................................................. 90
5 Planning.................................................................................................................... 91
5.1 Refrigeration technology and performance criteria ............................................................. 92
5.1.1 Determination of design outside temperature and design heat load ............................... 92
5.1.2 Determination of the domestic hot water demand ........................................................... 93
5.1.3 Determination of the heating surface temperature .......................................................... 94
5.1.4 Operating mode and determination of the bivalence point .............................................. 94
5.1.5 Determination of the pipe length correction factor for bi-bloc systems ............................ 95
5.1.6 Example: Calculation of the total heating capacity required ............................................ 95
5.1.7 Cooling............................................................................................................................. 96
5.1.7.1 Coolingwithunderoorheating ......................................................................................................... 97
5.1.7.2 Cooling with fan coils......................................................................................................................... 97
5.2 Installation criteria ................................................................................................................... 97
5.2.1 Acoustics.......................................................................................................................... 97
5.2.1.1 Sound pressure level......................................................................................................................... 97
5.2.1.2 Sound power level for approximate calculation of the sound pressure level..................................... 98
5.2.2 Installation of a bi-bloc system......................................................................................... 100
5.2.2.1 Installation conditions for outdoor units ............................................................................................. 101
5.2.2.2 Minimum distances for outdoor units................................................................................................. 101
5.2.2.3 Securing the outdoor unit .................................................................................................................. 102
5.2.2.4 Requirements of the room for installation of the indoor unit .............................................................. 103
5.2.2.5 Installation conditions for indoor units (hydrokit or All in One unit) .................................................... 107
5.2.2.6 Minimum distances for indoor units (hydrokit or All in One unit)........................................................ 107
5.2.3 Installation of a mono-bloc system................................................................................... 109
5.2.3.1 installation conditions for mono-bloc units......................................................................................... 110
5.2.3.2 Minimum distances for mono-bloc units ............................................................................................ 110
5.2.3.3 Securing the mono-bloc unit.............................................................................................................. 111
5.3 Hydraulics................................................................................................................................. 112
5.3.1 Hydraulic integration ........................................................................................................ 112
5.3.2 Pump discharge head...................................................................................................... 112
5.3.3 Hydraulic balancing.......................................................................................................... 113
5.3.4 Special points related to cooling ...................................................................................... 113
5.3.5 Expansion vessel............................................................................................................. 113
5.3.6 Heating water quality ....................................................................................................... 115
5.3.7 Useofbu󰀨ertanks........................................................................................................... 115
5.4 Electricals ................................................................................................................................. 116
5.4.1 Electrical connection to a power source .......................................................................... 116
5.4.2 Electricity meters and rates.............................................................................................. 128
5.5 Heating and cooling capacity depending on supply water temperature and
outside temperature................................................................................................................. 128

6Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Contents
5.6 Application examples .............................................................................................................. 136
5.6.1 Example1:One-zonesystemwithoutbu󰀨ertank ........................................................... 137
5.6.2 Example2:Two-zonesystemwithbu󰀨ertank................................................................. 138
5.6.3 Example 3: Single-phase two-zone system..................................................................... 139
5.6.4 Example4:Bivalenttwo-zonesystemwithbu󰀨ertank.................................................... 140
5.6.5 Example 5: Two- zone system with integrated domestic hot water tank.................................. 141
5.6.6 Example 6: One-zone system with integrated domestic hot water tank .......................... 142
5.6.7 Example 7: Bivalent two-zone system with solar heating system.................................... 143
5.6.8 Example 8: Two-zone system with swimming pool.......................................................... 144
5.6.9 Key for the application examples..................................................................................... 145
6 Installation ................................................................................................................ 147
6.1 Safety notes for installation.................................................................................................... 147
6.2 Preparing for installation......................................................................................................... 149
6.3 Creating a hole in the wall....................................................................................................... 151
6.4 Setting up devices ................................................................................................................... 152
6.4.1 Indoor units ...................................................................................................................... 152
6.4.2 Outdoor units and mono-bloc units.................................................................................. 153
6.5 Opening devices ...................................................................................................................... 155
6.5.1 All in One units................................................................................................................. 155
6.5.2 Hydrokits.......................................................................................................................... 156
6.5.3 Outdoor units and mono-bloc units.................................................................................. 157
6.6 Connecting the refrigeration circuit....................................................................................... 158
6.6.1 Connecting refrigerant pipes to the indoor unit................................................................ 159
6.6.2 Connecting refrigerant pipes to the outdoor unit.............................................................. 163
6.7 Connecting the heating circuit ............................................................................................... 165
6.7.1 Connecting water pipes to the indoor unit or mono-bloc unit........................................... 166
6.7.2 Connecting the condensation and water drain pipes....................................................... 171
6.7.2.1 Connecting the condensation drain hose .......................................................................................... 171
6.7.2.2 Connecting the safety valve drainage tap ......................................................................................... 173
6.8 Connecting the electrical wiring............................................................................................. 175
6.8.1 Connecting power cord.................................................................................................... 176
6.8.1.1 Connecting the power cord to the indoor unit.................................................................................... 176
6.8.1.2 Connecting the connection cable between indoor and outdoor unit.................................................. 178
6.8.1.3 Connecting power cord to the mono-bloc unit ................................................................................... 179
6.8.2 Connecting the optional on-site accessories ................................................................... 181
6.8.2.1 Connecting accessories to the indoor unit......................................................................................... 181
6.8.2.2 Connecting accessories to the mono-bloc unit.................................................................................. 182
6.8.2.3 Brief Overview of the external interfaces........................................................................................... 183
6.8.3 Installing and connecting the remote controller ............................................................... 184

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Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Contents
6.9 Starting up the system ............................................................................................................ 188
6.9.1 Evacuating the refrigerant circuit and carrying out a pressure test.................................. 188
6.9.2 Filling and venting the water system................................................................................ 191
6.9.2.1 Filling hot water tank.......................................................................................................................... 191
6.9.2.2 Filling the heating or cooling circuit ................................................................................................... 191
6.9.3 Checking the system........................................................................................................ 192
6.9.4 Carrying out a test run ..................................................................................................... 193
6.9.5 Carrying out the system handover and instruction........................................................... 194
7 Maintenance ............................................................................................................. 195
7.1 Checking the water pressure.................................................................................................. 195
7.2 Checking the pressure relief valve......................................................................................... 196
7.3 Conducting visual checks on the PCBs and terminals........................................................ 196
7.4 Cleaning the strainers ............................................................................................................. 196
7.5 Checking the residual current circuit breaker (RCCB)......................................................... 197
7.6 Checking the air purge valve and venting the system.......................................................... 198
7.7 Resetting the thermostatic overload protection ................................................................... 198
7.8 Carrying out maintenance work on the refrigerant circuit................................................... 199
8 Appendix................................................................................................................... 200
8.1 Extract from the operating instructions (J Generation) ....................................................... 200

8Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Range of Aquarea heat pump models
Models
1 Range of Aquarea heat pump models
3 kW 5 kW 7 kW 9 kW 12 kW 16 kW
Aquarea High Performance
All in One
1 Phase
3 Phase
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD03JE5
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD05JE5
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD07JE5
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD09JE5-1
WH-ADC0916H9E8
WH-UD09HE8
WH-ADC1216H6E5
WH-UD12HE5
WH-ADC0916H9E8
WH-UD12HE8
WH-ADC1216H6E5C
WH-UD12HE5
WH-ADC1216H6E5
WH-UD16HE5
WH-ADC0916H9E8
WH-UD16HE8
WH-ADC1216H6E5C
WH-UD16HE5
Bi‑bloc
1 Phase
3 Phase
WH-SDC0305J3E5
WH-UD03JE5
WH-SDC0305J3E5
WH-UD05JE5
WH-SDC0709J3E5
WH-UD07JE5
WH-SDC0709J3E5
WH-UD09JE5-1
WH-SDC09H3E8
WH-UD09HE8
WH-SDC12H6E5
WH-UD12HE5
WH-SDC12H9E8
WH-UD12HE8
WH-SDC16H6E5
WH-UD16HE5
WH-SDC16H9E8
WH-UD16HE8
Mono‑bloc
1 Phase
WH-MDC05J3E5 WH-MDC07J3E5 WH-MDC09J3E5 WH-MDC12H6E5 WH-MDC16H6E5
Aquarea T‑CAP
All in One
1 Phase
3 Phase
WH-ADC1216H6E5
WH-UX09HE5
WH-ADC0916H9E8
WH-UX09HE8
WH-ADC0916H9E8
WH-UQ09HE8
WH-ADC1216H6E5C
WH-UX09HE5
WH-ADC1216H6E5
WH-UX12HE5
WH-ADC0916H9E8
WH-UX12HE8
WH-ADC0916H9E8
WH-UQ12HE8
WH-ADC1216H6E5C
WH-UX12HE5
WH-ADC0916H9E8
WH-UX16HE8
WH-ADC0916H9E8
WH-UQ16HE8
Bi‑bloc
1 Phase
3 Phase
WH-SXC09H3E5
WH-UX09HE5
WH-SXC09H3E8
WH-UX09HE8
WH-SQC09H3E8
WH-UQ09HE8
WH-SXC12H6E5
WH-UX12HE5
WH-SXC12H9E8
WH-UX12HE8
WH-SQC12H9E8
WH-UQ12HE8
WH-SXC16H9E8
WH-UX16HE8
WH-SQC16H9E8
WH-UQ16HE8
Mono‑bloc
1 Phase
3 Phase WH-MXC09H3E5
WH-MXC09H3E8
WH-MXC09J3E5
WH-MXC09J3E8
WH-MXC12H6E5
WH-MXC12H9E8
WH-MXC12J6E5
WH-MXC12J9E8
WH-MXC16H9E8
WH-MXC16J9E8
Aquarea HT
Bi‑bloc
1 Phase
3 Phase WH-SHF09F3E5
WH-UH09FE5
WH-SHF09F3E8
WH-UH09FE8
WH-SHF12F6E5
WH-UH12FE5
WH-SHF12F9E8
WH-UH12FE8
Mono‑bloc
1 Phase
WH-MHF09G3E5 WH-MHF12G6E5
Heating. Cooling. DHW. WH-__E5 1 Phase // WH-__E8 3 Phase. Green color: J Generation models with R32 refrigerant.
10.03.2021, cH
Table taken from EU-PLST21; fonts adjusted (=>
Arial), image size adjusted (=> 15% smaller), row
height adjusted to fit layout
01.03.2022, cH
Footnotes concerning availability deleted.

9
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Range of Aquarea heat pump models
Models
3 kW 5 kW 7 kW 9 kW 12 kW 16 kW
Aquarea High Performance
All in One
1 Phase
3 Phase
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD03JE5
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD05JE5
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD07JE5
WH-ADC0309J3E5
WH-ADC0309J3E5B
WH-ADC0309J3E5C
WH-UD09JE5-1
WH-ADC0916H9E8
WH-UD09HE8
WH-ADC1216H6E5
WH-UD12HE5
WH-ADC0916H9E8
WH-UD12HE8
WH-ADC1216H6E5C
WH-UD12HE5
WH-ADC1216H6E5
WH-UD16HE5
WH-ADC0916H9E8
WH-UD16HE8
WH-ADC1216H6E5C
WH-UD16HE5
Bi‑bloc
1 Phase
3 Phase
WH-SDC0305J3E5
WH-UD03JE5
WH-SDC0305J3E5
WH-UD05JE5
WH-SDC0709J3E5
WH-UD07JE5
WH-SDC0709J3E5
WH-UD09JE5-1
WH-SDC09H3E8
WH-UD09HE8
WH-SDC12H6E5
WH-UD12HE5
WH-SDC12H9E8
WH-UD12HE8
WH-SDC16H6E5
WH-UD16HE5
WH-SDC16H9E8
WH-UD16HE8
Mono‑bloc
1 Phase
WH-MDC05J3E5 WH-MDC07J3E5 WH-MDC09J3E5 WH-MDC12H6E5 WH-MDC16H6E5
Aquarea T‑CAP
All in One
1 Phase
3 Phase
WH-ADC1216H6E5
WH-UX09HE5
WH-ADC0916H9E8
WH-UX09HE8
WH-ADC0916H9E8
WH-UQ09HE8
WH-ADC1216H6E5C
WH-UX09HE5
WH-ADC1216H6E5
WH-UX12HE5
WH-ADC0916H9E8
WH-UX12HE8
WH-ADC0916H9E8
WH-UQ12HE8
WH-ADC1216H6E5C
WH-UX12HE5
WH-ADC0916H9E8
WH-UX16HE8
WH-ADC0916H9E8
WH-UQ16HE8
Bi‑bloc
1 Phase
3 Phase
WH-SXC09H3E5
WH-UX09HE5
WH-SXC09H3E8
WH-UX09HE8
WH-SQC09H3E8
WH-UQ09HE8
WH-SXC12H6E5
WH-UX12HE5
WH-SXC12H9E8
WH-UX12HE8
WH-SQC12H9E8
WH-UQ12HE8
WH-SXC16H9E8
WH-UX16HE8
WH-SQC16H9E8
WH-UQ16HE8
Mono‑bloc
1 Phase
3 Phase WH-MXC09H3E5
WH-MXC09H3E8
WH-MXC09J3E5
WH-MXC09J3E8
WH-MXC12H6E5
WH-MXC12H9E8
WH-MXC12J6E5
WH-MXC12J9E8
WH-MXC16H9E8
WH-MXC16J9E8
Aquarea HT
Bi‑bloc
1 Phase
3 Phase WH-SHF09F3E5
WH-UH09FE5
WH-SHF09F3E8
WH-UH09FE8
WH-SHF12F6E5
WH-UH12FE5
WH-SHF12F9E8
WH-UH12FE8
Mono‑bloc
1 Phase
WH-MHF09G3E5 WH-MHF12G6E5
Heating. Cooling. DHW. WH-__E5 1 Phase // WH-__E8 3 Phase. Green color: J Generation models with R32 refrigerant.
10.03.2021, cH
Table taken from EU-PLST21; fonts adjusted (=>
Arial), image size adjusted (=> 15% smaller), row
height adjusted to fit layout
01.03.2022, cH
Footnotes concerning availability deleted.

10 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
General
2
2 General
About this manual
This Manual describes the planning, design, installation and commissioning of Panasonic Aquarea
air-to-water heat pumps. The key information is to be found in the following three main chapters.
Chapter 4 - Product Description - contains information covering the following aspects:
●Air-to-water heat pumps method of function
●Model types, functions and technical data relating to the Aquarea heat pump systems
●Accessories
Chapter 5 - Planning - contains information covering the following aspects:
● Selection and design of the heat pump for specic use
●Selection of the installation site
●Planning and preparing for installation
Chapter 6 - Installation - contains information covering the following aspects:
●Installation of the refrigerating, hydraulic and electrical components
●Commissioning
You will also nd in Chapter 7 - Maintenance - a description of the key maintenance tasks and
in the Appendix an overview of the error codes and operating instructions for the models of the
J Generation.
In addition to the information contained in this Manual, attention must also be paid to the
information in the installation and operating instructions for the respective device.
Products covered
The current Aquarea heat pump systems are covered in this Manual: mono-bloc systems, bi-bloc
systems and All in One (AiO) systems, which are a combination of a hydrokit and a hot water tank.
A detailed overview of the models covered can be found at → 1 Model range, p. 8.
Intended use
Aquarea air-to-water heat pumps from Panasonic are intended for use in space heating and
domestic hot water (DHW) production and represent complete, high-quality heating systems. If
required, they can be combined with hot water tanks, solar thermal or photovoltaic systems and/or
further heat sources powered by electricity, oil or gas.
The intended use of the heat pumps requires adherence to the information and instructions
contained in this Manual, especially the safety-related information.
Any other use is considered improper and can lead to signicant damage.
Panasonic assumes no liability for any damage resulting from improper use.
Target groups
This Manual is aimed at specialist planning and installation operations.
Installation and commissioning of the heat pumps may only be carried out by qualied technicians.
Only persons authorised by the manufacturer may make any changes, conversions and repairs.
Any changes or conversions made by customers themselves will basically exclude any liability
being incurred by the manufacturer for any damage resulting from this in exactly the same way as
with improper use.
Operation of the heat pumps can, in contrast, also be undertaken by private persons.
10.03.2021, cH
Global change of terminology:
[see my ANM-File]

11
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
General
2
Information for using this Manual
Various notices, symbols and text representations used in this Manual are briey explained below.
Safety-related information
Safety-related information, including product safety labels, safety notes and warning messages,
warns the user about dangers and provides instructions for the safe and proper use of the product.
In this manual, the following layout and symbols are used for warning messages:
WARNING
This signal word warns of a potentially hazardous situation which can lead to death or severe injury.
►Follow the instructions given in the warning messages in order to prevent this.
CAUTION
This signal word warns of a potentially hazardous situation which can result in slight or moderate
injury.
►Follow the instructions given in the warning messages in order to prevent this.
ATTENTION
This signal word warns of a situation which can result in material damage occurring.
►Follow the instructions given in the warning messages in order to prevent this.
Additional warning symbols
Warning of electric shock
Further information
!
IMPORTANT
Important information which must be observed in all cases in order to ensure that the devices
function in the intended manner.
i
Note
Notice for further useful information.
Text representations
►indicates handling instructions in a warning message
1., 2., 3. ... or a, b, c ... indicates operating steps which must be executed in the order specied
●indicates a list
Accentuation indicates important terms or text passages
(1)indicates references to image keys in the running text
→ Cross-reference indicates a cross-reference (with hyperlink function)
www.Hyperlink.com indicates an internet address (with hyperlink function)

12 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Safety Notes
3
3 Safety Notes
To avoid possible harm to persons or damage to products, read and follow these safety notes.
3.1 General Safety Notes for preventing electric shocks and
other hazards to health
WARNING
Danger to life from electric shock!
The devices are operated with 230 V or 400 V alternating current. Improper installation can present
a danger to life from electric shock as well as a danger of re occurring due to overheating.
►Electrical installation work must be undertaken by a trained electrician.
►Service and maintenance work must only be carried out by an accredited electrician or an
authorised dealer.
►Keep children and people unfamiliar with the equipment away from any installation work.
►Adherence to national and local standards and provisions is to be observed when
carrying out any installation work.
►Ensure that all cables and power connections, including those already in place, are of
adequate dimensions for the electrical power of the heat pump.
► Only use licensed power cords for connecting to a power source. No modied cables or
extension cables are to be used for connecting to the power source.
►The heat pumps must be duly earthed. Earthing is not to be undertaken via gas or water
pipes, lightning conductors or earthing for a telephone system.
►Adherence is to be paid to the respective national electrical wiring regulations and safety
arrangements with regard to residual current. Panasonic recommends using a residual
current circuit breaker (RCCB).
CAUTION
Danger of frostbite from the skin coming into contact with the refrigerant
Direct contact of the skin with the refrigerant can cause frostbite.
►Work on the refrigeration circuit and in connection with the refrigerant must be carried out
by a trained technician or an authorised trader holding a refrigerant handling certicate.
► Wear gloves when handling refrigerants (e.g. when emptying or lling the refrigeration
circuit).
►Observe the Safety Notes in force for the respective refrigerant (R32, R410A or R407C).
Danger of re and explosion caused by inammable gases
A danger of re or explosion arises when any leakages of inammable gases occur at the
installation site of the heat pump.
► Do not install heat pumps at sites where inammable gases can escape.
Danger due to toxic gases if the refrigerant comes into contact with re
Toxic gases can be created when escaped refrigerants come into contact with re.
For this reason, if refrigerants escape during installation or operation:
► Extinguish any sources of re (if present).
►Thoroughly ventilate the room in which the heat pump is installed.
10.03.2021, cH
Add R32-specific precautions

13
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Safety Notes
3
Danger of explosion and injury caused by pressure in the refrigeration circuit being too high
In the event of improper installation, leaks can occur at the connections of the refrigerant pipes,
leading to air being sucked in while the compressor is operating. This results in increased pressure
in the refrigeration circuit, leading in turn to increased risk of explosion or injury.
►Carry out installation of the refrigerant pipes in a proper manner and check that there are
no leaks in the installation before turning on the compressor.
►Before the refrigerant pipes are removed or work is carried out on the pipes, switch the
compressor o󰀨.
Danger of illnesses caused by colonies of bacteria in the water
The risk of colonies of bacteria, particularly of Legionella, in the water can be raised with an open
water circuit.
►Only deploy devices in a closed water system.
3.2 General Safety Notes relating to preventing material
damage
ATTENTION
Danger of the devices being damaged by incorrect refrigerant
The devices must only be operated with the refrigerants described in this Manual or the respective
operating instructions. The use of other refrigerants or multi-component refrigerants can lead to the
devices being damaged and to safety risks. Panasonic will not accept any responsibility or liability
whatsoever if incorrect refrigerants are used.
►Only use R32 refrigerant for Aquarea High Performance and T-CAP series models of the
J Generation, only use R410A refrigerant for the Aquarea High Performance and T-CAP
series models of the H Generation and only use R407C refrigerant for the Aquarea HT
series models of the F and G Generation.
►Do not mix the prescribed refrigerant with refrigerants of another type or replace it with a
refrigerant of another type.
Danger of other material damage to the devices, e.g. due to vibrations, water leaks or re
►Any work on the water circuit must be carried out by a trained technician.
►All relevant European and national provisions (including EN 61770 “Electrical appliances
connected to the water mains”) are to be observed in installation work for the water
circuit.
►Adhere to the conditions prescribed for the installation site:
●Indoor units (hydrokits or All in One units) are only to be installed in indoor areas.
●Outdoor units and mono-bloc devices are only to be installed in outdoor areas.
►Adhere to the prescribed sequence of installation steps.
► Only use parts and tools delivered with the equipment or as specied.
►As far as possible, avoid installation of outdoor units and mono-bloc devices near the
sea, in regions with a high content of sulphur or at sites where large quantities of oil (e.g.
machine oil, etc.) are present, as this may result in shortened operating life.
3.3 General further information
The following Notices contain recommendations or further assistance.

14 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Safety Notes
3
i
Notices
●Whether air-to-water heat pumps are subject to approval depends on the national
and local regulations in force at the installation site. In addition, all valid regulations,
especially in the area of noise, must be observed.
●Attention must be paid to both the Safety Notes and information in the operating
instructions for the respective devices and the information contained in this Manual.

15
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
4 Product Description
4.1 Operating Principle
Pleasant indoor temperatures just above 20 °C are needed to ensure living comfort. This
temperature does not di󰀨er much over most of the year, no matter what the outside temperature is.
In contrast to heating with burners, which generate temperatures of several hundred degrees as
part of the combustion process, a heat pump generates only the temperature that is needed at the
moment. The Aquarea air-to-water heat pump uses the thermal energy contained in the ambient
air to heat the building and to provide hot water. In other words, the system uses freely available
ambient heat. Power is only needed to supply the compressor, the electronics and the pumps, and
in extremely low outside temperatures, to operate the integrated electric backup heater.
Functioning principle of an air-to-water heat pump
3
5
4
2
1
1 Thermal energy contained in the ambient air
(evaporator)
2 Power
3 Useful heat (condenser)
4 Compressor
5 Expansion valve

16 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
In a circulation process, ambient heat is brought to a higher temperature level. An environmentally-
compatible refrigerant passes through four steps:
●In the evaporator (1), the refrigerant boils and goes from the liquid phase to the
gaseous phase. In this step, heat is extracted from the environment.
●In the compressor (4), the pressure of the gaseous refrigerant is sharply increased,
and the temperature also rises. This step takes place with supply of electrical energy
(2).
●In the condenser (3), gaseous refrigerant condenses and transfers the heat of
condensation to the water to be heated, while it also cools down at the same time.
●When passing through the expansion valve (5), the pressure of the uid refrigerant
drops so abruptly that its temperature drops sharply and it can absorb ambient heat
again.
This circulation process runs continuously and can be controlled using the Inverter Plus technology
of the Aquarea heat pump in such a manner that the current heat requirement is covered.
By inverting the circulation process, it becomes a refrigeration machine. Aquarea heat pumps can
thus also be used for space cooling.
Coe󰀩cient of Performance and Seasonal E󰀩ciency
The Coe󰀩cient of Performance (COP) of a heat pump for the heating mode is dened as the ratio
of the emitted thermal output to the electrical power consumed and thus says something about the
e󰀩ciency of the heat pump at a given moment. The COP of heat pumps di󰀨ers, depending on the
outside temperature and temperature of the generated heat. It is generally true that the COP drops
with increasing the temperature di󰀨erence between the outside temperature and the temperature of
the useful heat. A comparison of the e󰀩ciency of various heat pumps is only possible at the same
temperature. COPs for air-to-water heat pumps are usually measured and stated at the following
temperatures for better comparability:
Outside temperature Useful heat
A–15 W35
A–7 W35
A7 W35
A2 W55
(Astands for Air, Wstands for Water)
Example
Coe󰀩cient of Performance = 5.33 (A7 / W35)
At an outside temperature of 7 °C, the air-to-water heat pump generates hot water at 35 °C with a
COP of 5.33. Thus, it is possible to generate 5.33 kilowatt hours of heat from one kilowatt hour of
power.
A clearer view on a heat pump’s performance under real operating conditions is provided by the
Seasonal Coe󰀩cient of Performance (SCOP). As specied in EN 14825, the SCOP is dened as
the total reference annual heating load QH divided by the total annual power consumption QHE,
where QHE includes the COPs (measured at dened operating states), the energy consumption
in non-active mode, the rated heating capacity and the duration in active mode (dependent on
three simplied climate zones across Europe based on outdoor air temperatures weighted by their
occurrences in assumed hours per year).
The classication of heat pumps in terms of e󰀩ciency, which is stated on the EU energy label,
is based on the seasonal space heating energy e󰀩ciency ηs, which in turn is calculated from the
SCOP.
Similar to the COP for the heating mode is the power factor for the cooling mode (EER = energy
e󰀩ciency ratio) dened as the ratio of the emitted cooling power to the consumed electrical power.
10.03.2021, cH
- COP in example adjusted to current “top” model
(WH-ADC0309J3E5+ WH-UD03JE5) => 5,33 (A7/
W35)
- I think that “performance number” is not the
correct expression, must be changed.
- JAZ (Jahresarbeitszahl, “annual COP”) might only
refer to the German VDI 4650 directive. Instead we
should describe the European approach following
the EN 14825 standard for calculating the SCOP.

17
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Product Description
4
EU Ecodesign Directive
The European Union’s Ecodesign Directive 2009/125/EG provides the framework for establishing
the determination of the EU-wide valid requirements applicable for the product design, with which
the environmental loads and the CO2-emission by energy consumption-related products are to be
reduced throughout their total life cycle. The Ecodesign Directive must be implemented in every EU
member state into national law (e.g. in Germany by the Energy consumption relevant products act
(EVPG 2008) or in Austria by the Ecodesign Ordinance (ODV 2007)).
8
9
10
11
12
1
2
3
5
4
6
7
WH-ADC0309H3E5B + WH-UD03HE5-1
A++
A+
X
X
X
11 15
16
19
17
20
21
18
12
13
a
b
c
d
14
Example of Product Energy label (left)
1 Manufacturer
2 Symbol for space heating function
 3 Energyefciencyclassscaleforspaceheating
 4 Energyefciencyclassforspaceheating
5 Sound power level indoors
6 Sound power level outdoors
7 Year of validity of the Regulation
8 Product name
9 Symbol for water heating function with indication of
theloadprole
10 Energyefciencyclassforwaterheating
11 Rated heating capacity (kW) for the three European
climate zones
12 Regulation number
Example of Package Energy Label (right)
11 Manufacturer and product name
12 Package system
13 Package options:
a Solar system
b Hot water tank
c Control
d Additional heat source (e.g. boiler)
14 Year of validity of the Regulation
15 Symbol for space heating function
16 Energyefciencyclassscaleforspaceheating
17 Energyefciencyclassforspaceheating
18 Symbol for domestic hot water function with indication
oftheloadprole
19 Energyefciencyclassscaleforwaterheating
20 Energyefciencyclassforwaterheating
21 Regulation number
25.03.2021, cH
- new energy label from EU-GCAT21v1 inserted (le)
- when creating a new package label (right) for
WH-ADC0309J3E5C+ WH-UD03JE5 using Panaso-
nic’s Label Generator, I still get an old label (year
2015) with energy eiciency class scale A+++ to G
(space and water). Help needed.
13.04.2021, cH
Could not find any newer package label, not even
on websites of other manufacturers. So I le it as
is.
27.02.2022, cH
no answer
According to this Ecodesign Directive (or ErP Directive - Energy related products), boilers and heat
pumps (among other heat generating devices), hot water tanks and domestic ventilation devices
must fulll product-specic minimum requirements in respect of the energy e󰀩ciency. Moreover,
individual products as well as so called “packages” (e.g. heater plus controls) must be provided
with a product or package energy e󰀩ciency label. Energy e󰀩ciency is calculated according to
uniform criteria and indicated on the label as energy e󰀩ciency class (A+++ to D for space heating,
A+ to F for water heating).
Economical and Environment-Friendly
More than 79 % of the end energy utilisation in the household is used for heating and domestic hot
water production. At the same time, the fuel prices (oil, gas, wooden pellets) are subject to high
price variations and are becoming more and more expensive.
On the other hand, with an Aquarea heat pump, up to 80 % cost-free ambient heat can be used.
Only the remaining component of 20 % power needs to be sourced for the operation of the heat
10.03.2021, cH
75% => 79% (cf. EU-GCAT20, p. 25)

18 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
pumps. In comparison with a heating, which is purely based on electrical power, the power sourcing
is thus reduced to a quarter for the same heat production.
Comparison of the power requirement of an Aquarea heat pump with a purely electrical
heater for the same heat production
80%
20%
1 2
1 Conventional electrical heater 2 Aquarea heat pump
Power
consumption
1 kW
1 kW
Power
output
1 KW
5.33 kW
1
2
As against heating systems using fuel, the dependence on oil prices and uncertain energy imports
is thus reduced. In addition, the part of renewable energy fraction of the electric power consumed
is already around 20 % and shows a rising tendency. Other than the ambient heat, therefore, the
power used for heat pumps is also going to increasingly come from renewable energy.
In addition to the low use of electrical power, the lack of a need for stack emission measurements
also contributes towards low operating costs. The investment capital for an Aquarea heat pump is
comparatively low in comparison with the other heating systems having a natural gas connection,
chimney, oil tank or earth probes.
Optionally, the Aquarea heat pumps can also be operated with cooling function and supplemented
with a solar system and a heat recovery ventilation system. This in turn helps increase comfort and
e󰀩ciency.
Based on the environmental and energy policies of the European Union, each member state may
o󰀨er national state-promoted market incentive programmes for air/water heat pumps including
direct investment cost allowances. State-funded promotions are usually linked to certain conditions,
like e.g. minimum requirements related to the seasonal energy e󰀩ciency or annual power
consumption, which must be veriable through heat and power meters or similar tools. A hydraulic
balance and the adjustment of the heating curve may also be required. Details are given in the
respective current European and national promotion directives.
10.03.2021, cH
- promotion by the state => state funding?
- annual performance number => SCOP?
- current status for state-promoted incentive pro-
grammes is country-specific and must be checked
individually from time to time (=> change wording
accordingly)
- check if certificates for applying for state funding
are available for all countries on ProClub

19
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
i
Note
With the Aquarea Designer, Panasonic o󰀨ers a cost-free programme for heat pump dimensioning,
which can be used for calculating the annual COP (see the section “Panasonic Aquarea Designer”
in the planning chapter).
Test certicates for applying for state promotion can be downloaded if required from the Download
area of the Panasonic ProClub at www.PanasonicProClub.com.
4.2 Heat Source
Air, as a source of heat, is available everywhere and can be used at very little cost and in any
amount by using air-heat exchangers combined with fans. However, the outside temperature has
major variations during the year and the requirement for heat varies inversely. That means that
much more heat needs to be generated when the source of heat itself is at its coldest. This must be
taken into consideration at the time of planning, so that the living comfort remains constant.
Similarly, the noise generation of the fans and the air ow should be taken into consideration;
minimum distances to the adjacent properties should be observed and the installation location
should be selected accordingly.
1
2b
3a
3a
3a
4a
3b
3b
3b
4c
4d
2a 2c 4b
1 Heat source: ambient air
2 Heat pump system:
2a All in One system
2b Bi-bloc system
2c Mono-bloc system
3 Heat use:
3a Domestic hot water production (DHW)
3b Space heating/cooling (radiators, fan coil units,
oor/ceiling/wallsurface-embeddedsystems)
4 Optional accessories
4a Hot water tank
4b Heat recovery ventilation system atop a hot water
tank
4c Solar panels
4d Cloud-based control systems
26.03.2021, cH
- Picture from EU-GCAT21v1 inserted
- Legend exended with optional accessories

20 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
4.3 Heat pump
4.3.1 Functioning and Characteristics
Panasonic has developed the heat pump, as the core of the heat pump system, in three di󰀨erent
model series. This makes it possible to o󰀨er the best possible solution to address individual heat
supply requirements for buildings:
●Aquarea High Performance
Ideal for low-consumption houses with low-temperature radiators or underoor
heating.
●Aquarea T-CAP
For applications where the nominal heating capacity must be maintained even at
outside temperatures ranging from -7 or -20 °C. Care is taken to ensure that su󰀩cient
power output is always available for heating the house, even at extremely low outside
temperatures, even without support from an additional heat source.
●Aquarea HT
For houses with traditional high temperature radiators (e.g. in refurbishment projecs),
because Aquarea HT provides supply water temperatures up to 65 °C without any
support from other heating systems, even at outside temperatures of -15 °C.
For all series - except the HT series - a cooling function can be activated. Moreover, all Aquarea
heat pump series o󰀨er the choice of either a mono-bloc system (comprising just an outdoor unit), or
a bi-bloc system (comprising an outdoor unit and a hydrokit) (→ 4.5 Model types, p. 23).
4.3.2 Operating mode
In general: The greater the di󰀨erence between the outside temperature and temperature of the
useful heat, the lower is the COP of the heat pump. As high temperature di󰀨erences seldom occur
over the course of the year on properly planned heat pump systems, brief additional re-heating
using backup heaters is often accepted. As an alternative to backup heater, you can also work with
a peak load or alternative heat source, such as a condensing boiler or a replace. Four operating
modes are distinguished as follows:
● Monovalent operating mode:
The heat pump serves as the sole heat source.
● Mono-energetic operating mode:
One type of energy (electricity) is used in various heat sources (electric heat pump +
electric heating element for peak load).
●Bivalent alternative operating mode:
As an alternative to the heat pump, a second heat source supplies the object using
another type of energy (e.g. replace instead of heat pump for outside temperatures
< -5 °C).
●Bivalent parallel operating mode:
Besides the heat pump, a second heat source is used using another type of energy.
Both heat sources are operated simultaneously (e.g. heat pump + condensing boiler
for outside temperatures < 0 °C).
!IMPORTANT
If the heat pump in combination with an electric backup heater is operated mono-energetically, the
backup heater should cover a maximum of 15 % of the heat requirement.