Panasonic Aquarea B1 Technical manual

Panasonic Aquarea air-to-water heat pumps 2018
Panasonic Aquarea air-to-water heat pumps
Planning and installation manual
for split systems and compact systems

Notes:

3
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Panasonic Aquarea air-to-water heat pumps
Planning and installation manual
for split systems and compact systems
Translation of the Installation and Commissioning Instructions (English)
Version of the documentation: 01/2018
COPYRIGHT
© Panasonic Marketing Europe GmbH 2018. 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 - 01/2018
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Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
4.8 Accessories......................................................................................................................... 67
4.8.1 Hot water tank............................................................................................................. 67
4.8.1.1 Product features .......................................................................................................................... 67
4.8.1.2 Components ................................................................................................................................ 68
4.8.1.3 Connections................................................................................................................................. 70
4.8.1.4 Dimensions.................................................................................................................................. 72
4.8.1.5 Technical data.............................................................................................................................. 73
4.8.2 Aquarea Tank.............................................................................................................. 74
4.8.2.1 Product features .......................................................................................................................... 74
4.8.2.2 Components, connections and dimensions................................................................................. 75
4.8.2.3 Technical data.............................................................................................................................. 76
4.8.3 Recommended on-site accessories............................................................................ 76
5 Planning................................................................................................................ 78
5.1 Cooling technique and performance criteria.................................................................... 79
5.1.1 Establishment of standard outside temp. and standard heating load ......................... 79
5.1.2 Establishment of the hot water requirement ............................................................... 81
5.1.3 Establishment of the heating surface temperature ..................................................... 82
5.1.4 Operating mode and establishment of the bivalence point......................................... 82
5.1.5 Establishment of the performance correction factor for split systems......................... 83
5.1.6 Example: Calculation of the total heating power required .......................................... 83
5.1.7 Cooling........................................................................................................................ 86
5.1.7.1 Coolingwithoorheating ............................................................................................................ 86
5.1.7.2 Cooling with fan coils................................................................................................................... 86
5.2 Installation criteria .............................................................................................................. 87
5.2.1 Acoustics..................................................................................................................... 87
5.2.1.1 Sound pressure level................................................................................................................... 87
5.2.1.2 Sound power level for approximate calculation of the sound pressure level............................... 88
5.2.2 Installation of a split system........................................................................................ 90
5.2.2.1 Assembly conditions for outdoor units......................................................................................... 90
5.2.2.2 Minimum distances for outdoor units........................................................................................... 91
5.2.2.3 Securing outdoor units................................................................................................................. 92
5.2.2.4 Installation space requirements for indoor units .......................................................................... 93
5.2.2.5 Assembly conditions for hydro-modules and combined hydro-modules ..................................... 94
5.2.2.6 Minimum distances for hydro-modules and combined hydro-modules ....................................... 95
5.2.3 Installation of a compact system................................................................................. 96
5.2.3.1 Assembly conditions for the compact device............................................................................... 97
5.2.3.2 Minimum distances for the compact device................................................................................. 98
5.2.3.3 Securing the compact device ...................................................................................................... 99
5.3 Hydraulics............................................................................................................................ 100
5.3.1 Hydraulic integration ................................................................................................... 100
5.3.2 Pump discharge head................................................................................................. 101
5.3.3 Hydraulic alignment .................................................................................................... 101
5.3.4 Special points related to cooling ................................................................................. 102
5.3.5 Expansion vessel........................................................................................................ 102
5.3.6 Heating water quality .................................................................................................. 103
5.3.7 Use of buffer tanks...................................................................................................... 104
Table of Contents
1 Range of Aquarea heat pump models................................................................ 8
2 Miscellaneous ...................................................................................................... 10
3 Safety Notices ...................................................................................................... 13
3.1 General Safety Notices for preventing electric shocks and other
hazards to health................................................................................................................. 13
3.2 General Safety Notices relating to preventing property damage................................... 14
3.3 General further information ............................................................................................... 15
4 Product description ............................................................................................. 16
4.1 Operating principle ............................................................................................................. 16
4.2 Heat source.......................................................................................................................... 20
4.3 Heat pump............................................................................................................................ 22
4.3.1 Function and features ................................................................................................. 22
4.3.2 Operating mode .......................................................................................................... 22
4.4 Heat use ............................................................................................................................... 23
4.4.1 Heating........................................................................................................................ 23
4.4.2 Preparation of hot water.............................................................................................. 23
4.4.3 Cooling........................................................................................................................ 24
4.5 Model types ......................................................................................................................... 25
4.5.1 Split system and compact system............................................................................... 25
4.5.2 Series.......................................................................................................................... 26
4.5.3 Key to models ............................................................................................................. 28
4.6 Functions and technical data............................................................................................. 30
4.6.1 Product features.......................................................................................................... 30
4.6.2 Split system................................................................................................................. 31
4.6.2.1 Components ................................................................................................................................ 32
4.6.2.2 Dimensions.................................................................................................................................. 35
4.6.2.3 Technical data.............................................................................................................................. 38
4.6.3 Compact system ......................................................................................................... 46
4.6.3.1 Components ................................................................................................................................ 47
4.6.3.2 Dimensions.................................................................................................................................. 48
4.6.3.3 Technical data.............................................................................................................................. 50
4.7 Control ................................................................................................................................. 52
4.7.1 Operating unit ............................................................................................................. 52
4.7.1.1 Operating unit for F- and G-Generation models .......................................................................... 53
4.7.1.2 Operating unit for H-Generation models...................................................................................... 53
4.7.2 External interfaces (in-/outputs).................................................................................. 59
4.7.2.1 External interfaces for F- and G-Generation models................................................................... 59
4.7.2.2 External interfaces for H-Generation models .............................................................................. 60

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Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Contents
Contents
5.4 Electrics ............................................................................................................................... 105
5.4.1 Electrical connection to a power source ..................................................................... 105
5.4.2 Electric meters and rates ............................................................................................ 116
5.5 Heatingandcoolingcapacitydependingonwaterowandoutsidetemperature ...... 117
5.6 Examples of use.................................................................................................................. 126
5.6.1 Example 1: One-circuit system without buffer tank..................................................... 127
5.6.2 Example 2: Two-circuit system with buffer tank .......................................................... 128
5.6.3 Example 3: Single-phase two-circuit system .............................................................. 129
5.6.4 Example 4: Bivalent two-circuit system with buffer tank ............................................. 130
5.6.5 Example 5: Two-circuit system with integrated hot water tank ................................... 131
5.6.6 Example 6: One-circuit system with integrated hot water tank ................................... 132
5.6.7 Example 7: Bivalent two-circuit system with solar heating system ............................. 133
5.6.8 Example 8: Two-circuit system with swimming pool ................................................... 134
5.6.9 Key to the examples of use......................................................................................... 135
6 Installation ............................................................................................................ 137
6.1 Safety Notices for installation............................................................................................ 138
6.2 Preparing for installation.................................................................................................... 141
6.3 Creating a hole in the wall.................................................................................................. 144
6.4 Installing devices ................................................................................................................ 145
6.4.1 Indoor units ................................................................................................................. 145
6.4.2 Outdoor units and compact devices............................................................................ 146
6.5 Opening devices ................................................................................................................. 148
6.5.1 Combined hydro-modules........................................................................................... 148
6.5.2 Hydro-modules............................................................................................................ 149
6.5.3 Outdoor units and compact devices............................................................................ 151
6.6 Connecting the cooling circuit .......................................................................................... 152
6.6.1 Connecting the coolant pipes to the indoor unit.......................................................... 154
6.6.2 Connecting the coolant pipes to the outdoor unit ....................................................... 158
6.7 Connecting the heating circuit .......................................................................................... 161
6.7.1 Connecting the water pipes to the indoor unit or compact device .............................. 162
6.7.2 Connectingthecondensationandwateroutows ...................................................... 167
6.7.2.1 Connectingthecondensationoutowhose................................................................................. 168
6.7.2.2 Connectingthewateroutowtothesafetyvalve ........................................................................ 170
6.8 Connecting the electrical wiring........................................................................................ 172
6.8.1 Connecting the power cord......................................................................................... 174
6.8.1.1 Connecting the power cord to the indoor unit.............................................................................. 174
6.8.1.2 Connecting the connection cable between indoor and outdoor unit............................................ 177
6.8.1.3 Connecting the power cord to the compact device...................................................................... 178
6.8.2 Connecting the optional on-site accessories .............................................................. 180
6.8.2.1 Connecting the accessories to the indoor unit............................................................................. 180
6.8.2.2 Connecting the accessories to the compact device .................................................................... 182
6.8.2.3 Brief overview of external interfaces............................................................................................ 184
6.8.3 Assembling and connecting the operating unit ........................................................... 186
6.9 Starting up the system ....................................................................................................... 191
6.9.1 Emptying the cooling system and carrying out a pressure test .................................. 191
6.9.2 Filling and venting the water system........................................................................... 194
6.9.2.1 Filling the hot water tank.............................................................................................................. 194
6.9.2.2 Filling the heating and cooling circuit........................................................................................... 195
6.9.3 Checking the system................................................................................................... 196
6.9.4 Carrying out a test run ................................................................................................ 197
6.9.5 Carrying out a system transfer and familiarisation...................................................... 197
7 Maintenance ......................................................................................................... 198
7.1 Checking the water pressure............................................................................................. 198
7.2 Checking the pressure relief valve.................................................................................... 199
7.3 Conducting visual checks on the PCBs and terminals................................................... 199
7.4 Cleaning the dirt catchers.................................................................................................. 199
7.5 Checking the FI protection switch..................................................................................... 200
7.6 Checking the quick vent valves and venting the system................................................ 200
7.7 Resetting the thermostatic overload protection .............................................................. 201
7.8 Carrying out maintenance work on the cooling circuit................................................... 201
8 Appendix............................................................................................................... 203
8.1 Extract from the operating instructions (H-Generation) ................................................. 203
8.2 Troubleshooting.................................................................................................................. 220

8Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Range of Aquarea heat pump models
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Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Range of Aquarea heat pump models
8
Range of Aquarea heat pump models
9
Range of Aquarea heat pump models
1 Range of Aquarea heat pump models
3 kW 5 kW 7 kW 9 kW 12 kW 16 kW
Combined Hydro-module
LT
Single-phase
WH-ADC0309H3E5
WH-ADC0309H3E5B
WH-UD03HE5-1 (B1)
WH-ADC0309H3E5
WH-ADC0309H3E5B
WH-UD05HE5-1 (B1)
WH-ADC0309H3E5
WH-ADC0309H3E5B
WH-UD07HE5-1 (B2)
WH-ADC0309H3E5
WH-ADC0309H3E5B
WH-UD09HE5-1 (B2)
WH-ADC1216H6E5
WH-UD12HE5 (B3)
WH-ADC1216H6E5
WH-UD16HE5 (B3)
Single-phase
LT
Combined Hydro-module
Three-phase
WH-ADC0916H9E8
WH-UD09HE8 (B3)
WH-ADC0916H9E8
WH-UD12HE8 (B3)
WH-ADC0916H9E8
WH-UD16HE8 (B3)
Three-phase
T-CAP
Single-phase
WH-ADC1216H6E5
WH-UX09HE5 (B3)
WH-ADC1216H6E5
WH-UX12HE5 (B3)
Single-phase
T-CAP
Three-phase
WH-ADC0916H9E8
WH-UX09HE8 (B3)
WH-UQ09HE8 (B10)
WH-ADC0916H9E8
WH-UX12HE8 (B3)
WH-UQ12HE8 (B10)
WH-ADC0916H9E8
WH-UX16HE8 (B3)
WH-UQ16HE8 (B10)
Three-phase
Split
LT
Single-phase
WH-SDC03H3E5-1
WH-UD03HE5-1 (B4)
WH-SDC05H3E5-1
WH-UD05HE5-1 (B4)
WH-SDC07H3E5-1
WH-UD07HE5-1 (B5)
WH-SDC09H3E5-1
WH-UD09HE5-1 (B5)
WH-SDC12H6E5
WH-UD12HE5 (B6)
WH-SDC16H6E5
WH-UD16HE5 (B6)
Single-phase
LT
Split
Three-phase
WH-SDC09H3E8
WH-UD09HE8 (B6)
WH-SDC12H9E8
WH-UD12HE8 (B6)
WH-SDC16H9E8
WH-UD16HE8 (B6)
Three-phase
T-CAP
Single-phase
WH-SXC09H3E5
WH-UX09HE5 (B6)
WH-SXC12H6E5
WH-UX12HE5 (B6)
Three-phase
T-CAP
Three-phase
WH-SXC09H3E8
WH-UX09HE8 (B6)
WH-SQC09H3E8
WH-UQ09HE8 (B7)
WH-SXC12H9E8
WH-UX12HE8 (B6)
WH-SQC12H9E8
WH-UQ12HE8 (B7)
WH-SXC16H9E8
WH-UX16HE8 (B6)
WH-SQC16H9E8
WH-UQ16HE8 (B7)
HT
Single-phase
WH-SHF09F3E5
WH-UH09FE5 (B6)
WH-SHF12F6E5
WH-UH12FE5 (B6)
Single-phase
HT
Three-phase
WH-SHF09F3E8
WH-UH09FE8 (B6)
WH-SHF12F9E8
WH-UH12FE8 (B6)
Three-phase
Compact
LT
Single-phase
WH-MDC05H3E5 (B8) WH-MDC07H3E5 (B8) WH-MDC09H3E5 (B8)
Single-phase
LT
Compact
T-CAP
Single-phase
WH-MXC09H3E5 (B9) WH-MXC12H6E5 (B9)
Single-phase
T-CAP
Three-phase
WH-MXC09H3E8 (B9) WH-MXC12H9E8 (B9) WH-MXC16H9E8 (B9)
Three-phase
HT
Single-phase
WH-MHF09G3E5 (B9) WH-MHF12G6E5 (B9)
Single-phase
HT
Three-phase
WH-MHF09G3E8 (B9) WH-MHF12G9E8 (B9)
Three-phase
Heating / Cooling / Preparation of warm water for drinking purposes
Model B1 Model B2 Model B10 Model B4 Model B5 Model B6 Model B7 Model B8 Model B9Model B3

10 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
General
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Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
General
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.
Information for using this Manual
Various notices, symbols and text representations used in this Manual are briey explained
below.
Information related to safety
Information related to safety warns the user about dangers and provides instructions for the
safe and proper use of the product. The following Warning Notices and symbols are used in this
Manual:
WARNING
This signal word warns of a hazard which can lead to death or severe injury.
►Follow the Warning Notices given in order to prevent this.
CAUTION
This signal word warns of a hazard which may result in slight or moderate injury.
►Follow the Warning Notices given in order to prevent this.
CAUTION
This signal word warns of a situation which can result in material damage occurring.
►Follow the Warning Notices given 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.
iNote
Notice for further useful information.
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 cooling, hydraulic and electrical components
●Commissioning
You will also nd in Chapter 7 - Servicing - a description of the key servicing jobs and in the Ap-
pendix an overview of the error codes, operating instructions for the models of the H Generation
and various types of document templates (e.g. protocols for commissioning and familiarisation).
In addition to the information contained in this Manual, attention must also be paid to the infor-
mation in the installation and operating instructions for the respective device.
Products covered
The current Aquarea heat pump systems are covered in this Manual: Compact systems, split
systems and systems with combined hydro-module. 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 heating rooms and
preparing hot water 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 electric-,
oil- or gas-powered heat sources.
The intended use of the heat pumps requires adherence to the information and instructions
contained in this Manual, especially the safety notices.
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.

12 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
General
Text representations
►indicates handling instructions in a warning notice
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)

13
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Safety Notices
3 Safety Notices
3.1 General Safety Notices 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
superheat.
►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 regulations 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 protection switch (FI protection switch).
CAUTION
Danger of frostbite from the skin coming into contact with the coolant
Direct contact of the skin with the coolant can cause frostbite.
►Work on the cooling circuit and in connection with the coolant must be carried out by a
trained technician or an authorised trader holding a coolant certicate.
► Wear gloves when handling coolants (e.g. when emptying or lling the cooling circuit).
►Observe the Safety Notices in force for the respective coolant (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.

14 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Safety Notices
15
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Safety Notices
►All relevant European and national provisions (including EN 61770 “Electrical appli-
ances 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 (hydro-modules or combined hydro-modules) are only to be installed in
indoor areas.
●Outdoor units and compact 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 compact 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.
iNotices
●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 Notices and information in the operating
instructions for the respective devices and the information contained in this Manual.
Danger due to toxic gases if the coolant comes into contact with re
Toxic gases can be created when escaped coolants come into contact with re.
For this reason, if coolants escape during installation or operation:
► Extinguish any sources of re (if present).
►Thoroughly ventilate the room in which the heat pump is installed.
Danger of explosion and injury caused by pressure in the coolant circuit being too high
In the event of improper installation, leaks can occur at the connections of the coolant pipes,
leading to air being sucked in while the compressor is operating. This results in increased pres-
sure in the coolant circuit, leading in turn to increased risk of explosion or injury.
►Carry out installation of the coolant pipes in a proper manner and check that there are
no leaks in the installation before turning on the compressor.
►Before the coolant pipes are removed or work is carried out on the pipes, switch the
compressor off.
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 Notices relating to preventing material
damage
CAUTION
Danger of the devices being damaged by incorrect coolant
The devices must only be operated with the coolants described in this Manual or the respective
operating instructions. The use of other coolants or coolant compounds can lead to the devices
being damaged and to safety risks. Panasonic will not accept any responsibility or liability what-
soever if incorrect coolants are used.
►Only use coolant Type R410A for the Aquarea LT and T-CAP series and only Type
R407C coolant for the Aquarea HT series.
►Do not mix the prescribed coolant with coolants of another type or replace it with a
coolant 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.

16 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Product Description
17
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Product Description
In a circulation process, ambient heat is brought to a higher temperature level. An environmen-
tally-compatible coolant passes through four steps:
●In the evaporator (1), the coolant boils and goes from the liquid phase to the gas-
eous phase. In this step, heat is extracted from the environment.
●In the compressor (4), the pressure of the gaseous coolant is sharply increased,
and the temperature also rises. This step takes place with supply of electrical ener-
gy (2).
●In the condenser (3), gaseous coolant condenses and transfers the heat of con-
densation 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 coolant
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 technol-
ogy of the Aquarea heat pump in such a manner that the current heat requirement is covered.
By inverting the circulation process, it becomes a cooling machine. Aquarea heat pumps can
thus also be used for room cooling.
Coefcient of Performance and Performance Number
The COP (coefcient of performance) 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 efciency of the heat pump at a given moment. The COP of heat pumps differs, de-
pending on the outside temperature and temperature of the generated heat. It is generally true
that the COP drops with increasing the temperature difference between the outside temperature
and the temperature of the useful heat. A comparison of the ef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
Coefcient of Performance = 4.74 (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 4.74. Thus, it is possible to generate 4.74 kilowatt hours of heat from one kilowatt hour
of power.
The performance number, which represents the ratio of the emitted heat to the consumed quan-
tity of power over a certain period, is more meaningful than the COP. The annual performance
number (JAZ) is the ratio of the generated heat to the needed quantity of power over the period
of one year. It is recorded by means of meters for power and amount of heat and takes all oper-
ating states of the heat pump systems into consideration.
4 Product Description
4.1 Operating Principle
Pleasant indoor temperatures just above 20 °C are needed to ensure living comfort. This tem-
perature does not differ much from the outside temperature over most of the year.
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 E-heating element.
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(liqueer)
4 Compressor
5 Expansion valve

18 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
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Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Product Description
characterised with a product or composite energy efciency label. Energy efciency is calculated
according to uniform criteria and indicated on the label as energy efciency class (A++(+) to G).
Economical and Environment-Friendly
More than 75% of the end energy utilisation in the household is used for heating and hot water
provision. 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 75% cost-free ambient heat can be used.
Only the remaining component of 25% power needs to be sourced for the operation of the heat
pumps. In comparison with a purely power heating, 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
4.74 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.
Similar to the COP for the heating mode is the power factor for the cooling mode (EER = energy
efciency ratio) dened as the ratio of the emitted cooling power to the consumed electrical
power.
EC Eco-Design Directive
The eco-design directive 2009/125/EG provides the framework for establishing the determina-
tion of the EC-wide valid requirements applicable for the product design, with which the environ-
mental loads and the CO2-emission by energy consumption-related products are to be reduced
throughout during its total life cycle. The eco-design directive must be implemented in every EC
member state into national law (e.g. in Germany by the Energy consumption relevant products
act (EVPG 2008) or in Austria by the Eco-design Ordinance (ODV 2007)).
55°C 35°C
41 dB
64 dB
kW kW
3102/1185102
A++
A+
A
B
C
D
E
F
G
A++ A++
34
WH-SDC03H3E5 / WH-UD03HE5
2
3
3
3
7
8
9
10
1
2
3
4
5
6
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 Room heating function
 3 EnergyefciencyclassscaleA++toG
4 Sound power level in inside rooms
5 Sound power level in outdoor area
6 Year of validity of the ordinance
7 Product name
 8 Energyefciencyclassforroomheatingfunctionat
55°C/35°C,inowtemp.
9 Heating capacity (kW)
10 Directive number
Example of Composite Energy Label (right)
11 Product name
12 Composite system
13 Combination options:
a Solar system
b Hot water tank
c Control
 d Additionalheatsource(e.g.boiler)
14 Year of validity of the ordinance
15 Room heating function
16 Energyefciencyclassscaleforroomheating
function(A+++toG)
17 Energyefciencyclassscaleforroomheating
function
18 Hot water preparation function with indication of the
bleedprole(3XSto4XL)
19 Energyefciencyclassscaleforhotwaterprepara-
tionfunction(A+++toG)
20 Energyefciencyclassscaleforhotwaterprepara-
tion function
21 Directive number
According to this eco-design directive (or ErP directive - Energy related products), among oth-
er apparatus, (e.g. boilers and heat pumps), hot water tanks and domestic ventilation devices
must fulll product-specic minimum requirements in respect of the energy efciency. Moreover,
individual products as well as product combinations (e.g. heat sources plus controls) must be

20 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
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Product Description
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
2c
23
2b
2a
In addition to the low use of electrical power, the lack of a need for stack emission measure-
ments 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 supplement-
ed with a solar system. This in turn helps increase comfort and efciency.
Finally, Aquarea heat pumps will eventually be state-promoted through market incentive attrac-
tion programmes with direct investment cost allowances. A promotion is linked to certain con-
ditions, which are to be observed during planning and installation. Promotions through market
incentive programmes are accordingly linked mostly to minimum annual performance numbers,
which must be veriable through counters for annual amounts of heat and power. Similarly, a
hydraulic alignment and the adjustment of the heating level are required. Details are given in the
respective current European and national promotion directives.
i Note
With the Aquarea Designer, Panasonic offers a cost-free programme for heat pump dimension-
ing, which can be used for calculating the annual performance number (see the section “Pana-
sonic Aquarea Designer” in the planning chapter).
Test certicates for applying for state promotion can be downloaded if required from the Down-
load 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.
1 Heat source: Ambient air
2 Heat pump: Combination Hydro-module (2a),
Split system (2b) or compact system (2c)
3 Heat use: Hot water preparation / Heating / Cooling

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4.4 Heat use
4.4.1 Heating
In contrast with heat sources with burners, which generate water inow temperatures of
over 80 °C, the maximum water inow temperature of the Aquarea heat pump is limited to
55 °C (Aquarea LT), 60 °C (Aquarea T-CAP) or 65 °C (Aquarea HT). This must be taken into
consideration during the planning of the heating circuits. Surface heaters and underoor heating
that have a water inow temperature of up to 35 °C and a spread of 5 K are recommended.
An advantage of underoor heating with wet screed laying is its high storage capacity, which
eliminates the need for a buffer tank for bridging power cut-off times by the energy supply
company.
Fan coils have the advantage of good heat emission to the ambient air with quick control
performance. Besides, they can be used for both the heating and cooling modes to the same
extent.
If radiators are used, plan with the lowest possible design temperature of, for example, 45 °C,
to ensure high efciency of the heat pump system. An internal E-heating element of 3 to 9 kW
with its mono-energetic operating mode ensures high heating comfort of the Aquarea heat pump
even at very low outside temperatures. Alternatively, a bivalent operation is also possible in
combination with an external heat source.
The Aquarea heat pump has an outside temperature-dependent control of the water inow
temperature and can thus actuate a heating circuit with a room thermostat. The other heating
circuits can be controlled through additional heating circuit controllers or a superordinate system
controller.
4.4.2 Preparation of hot water
The Aquarea heat pump can similarly prepare hot water, and this is integrated in the controls.
It switches to this operating mode when necessary and systematically actuates the tank for the
hot water preparation through a 3-way valve.
For reasons of efciency, the hot water temperature is set below 60 °C in the heat pump
operation. A hot water temperature of 45 °C is normally sufcient and does not compromise
comfort in any way. If the hot water temperature is, however, too low, there is the risk of
Legionella to be considered; this multiplies particularly well in the range between 30 and 50 °C.
Panasonic hot water tanks are tted with an electrical heating rod (E-Heating element DHW
tank) for comfortable hot water supply, which is only switched on when needed or for Legionella
prophylaxis (sterilisation).
Aquarea heat pumps can be easily combined without a problem with solar systems, which can
take over hot water provision to a large extent in the summer.
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 differ-
ent model series. This makes it possible to offer the best possible solution to address individual
heat supply requirements for buildings:
LT
Aquarea
Heat pumps
Aquarea LT:
Ideal for low temperature heaters or oor heating; it can also be used for radiators.
T-CAP
Aquarea
Heat pumps
Aquarea T-CAP:
For applications where the nominal power must be maintained even at outside
temperatures ranging from -7 or -20 °C. Care is taken to ensure that sufcient power
output is always available for heating the house, even at extremely low outside tem-
peratures, even without support from an additional heat source.
HT
Aquarea
Heat pumps
Aquarea HT:
For high temperature heaters (e.g. radiators during building restoration), because
Aquarea HT provides a water supply at a temperature of 65 °C without any support
from other heating systems, even at outside temperatures of -15 °C.
All series - except the HT series - have a cooling function. Moreover, the Aquarea heat pump (all
series) can be used as a compact system in a device or as a split system in two devices (out-
door unit and hydro-module) (→4.5 Model types, p. 25).
4.3.2 Operating mode
In general: The greater the difference between the outside temperature and temperature of the
useful heat, the lower is the performance number of the heat pump. As high temperature differ-
ences seldom occur over the course of the year on properly planned heat pump systems, brief
additional re-heating using E-heating elements is often accepted. As an alternative to an E-heat-
ing element, you can also work with a peak load or alternative heat source, such as a condens-
ing 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:
An energy (power) source is used in various heat sources (electrical heat pump +
E-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 energy source (e.g. replace instead of heat pump for outside tempera-
tures <-5 °C).
●Bivalent parallel operating mode:
Besides the heat pump, a second heat source is used using another energy
source. Both heat sources are operated simultaneously (e.g. heat pump + con-
densing boiler for outside temperatures <0 °C).
! IMPORTANT
If the heat pump in combination with an E-heating element is operated mono-energetically, the
E-heating element should cover a maximum of 15% of the heat requirement.

24 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
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CAUTION
Danger of damage to building or risk of slipping in the oor area
In the cooling mode, a drop below dew point can cause condensation of moisture from the air
on the surface of the heat transfer systems. This can damage the building or pose the risk of
slipping in the oor area.
►Prevent the temperature from dropping below the dew point by suitable placement of
dew point sensors.
►Alternatively, the condensate that forms can be safely diverted.
►In addition, insulate the pipelines concerned to prevent diffusion.
4.5 Model types
4.5.1 Split system and compact system
Difference between split system (left) and compact system (right)
1
4
35
2 2
1 Refrigerant circuit
2 Heating circuit (water)
3 Outdoor unit
4 Hydro-module or combination hydro-module
5 Compact device
Split system
The split system consists of an outdoor unit installed in the open air and an indoor unit, the
hydro-module or combination hydro-module, which is usually housed in the boiler room or in
another frost-free room. In this model, the two devices are linked through coolant pipes, so there
is no danger of freezing. The heat pump is operated through the operating panel on the indoor
unit.
The combination hydro-module is a space-saving combination of the hydro-module and a
high-quality stainless steel hot water tank. It can be installed quickly and smoothly, because
the internal pipes of the device unit are already laid and the pipe connections are placed on the
underside of the device.
Compact system
The compact system consists of only one device that is set up outdoors. No coolant pipes are
needed for the installation; only the heating system needs to be connected to it. Compact sys-
tems are easier to install, but need more space. Moreover, the heating water needs to be guided
out from the building envelope and can freeze in the event of power failure or if the electricity
supply is cut off by the network operator.
CAUTION
Danger of illnesses due to growth of Legionella in water
Legionella can grow in hot water tanks, and can cause infectious diseases in humans.
►Respect European and national requirements for avoiding Legionella multiplication
(example in Germany: DVGW Worksheet W551). For domestic hot water tanks with
more than 400 litres volume as well as in buildings with more than two residential
units, there may be higher requirements than for one- and two-family houses.
CAUTION
Danger of damage to water tank due to inadequate water quality
If the contents of chloride and sulphate contents exceed 250 mg/l, water pretreatment is re-
quired. The warranty is invalidated at values above 250 mg/l.
►When using the Panasonic hot water tank, make sure that the water quality conforms
to drinking water directives 98/83/EC.
4.4.3 Cooling
The cooling mode is switched on manually through the operating panel or the wired remote
controller or automatically through dened temperature threshold values. Switching to heating
mode is also done manually at the end of the cooling period or automatically using the dened
temperature threshold.
Room cooling is possible through surface heaters such as oor and wall heaters, cooling
ceilings or particularly using fan coils. Individual heating circuits that are not suitable for cooling
mode can be disabled by control through a 2-way valve. For all transfer systems, in the cooling
mode at high humidity, the temperature on the surface could fall below the dew point, which can
cause condensation of water. This should be prevented especially in surface heaters, due to
which the water inow temperature measured through the dew point sensor rises due to return
mixing, or the cooling mode may need to be switched off. Fan coils can be operated with much
lower water inow temperatures, compared to the use of surface heaters for cooling mode, and
therefore have greater cooling capacities. However, fan coils for cooling mode must always be
tted with a condensation drain and have tubes with diffusion-proof heat insulation.

26 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
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In all, the following features occur in various combinations:
● “Heating and cooling” or “Heating only”
●Nominal heating power (3, 5, 7, 9, 12 or 16 kW)
●Power E-heating element heat pump (3, 6 or 9 kW)
●Electrical connection (single phase or three phase)
With the large number of different model variants, which is an expression of the large variety of
characteristics and functions of the Aquarea heat pumps, Panasonic can achieve a high level of
exibility and adaptability for the most varied applications. Seen from outside, the devices look
almost the same except for the notable differences as in compact and split systems or combina-
tion hydro-module and can therefore be described together in respect of many planning-relevant
properties. The relevant differences, even those between different product generations, will be
pointed out at the appropriate point.
The Aquarea heat pump models are congured in terms of their properties such that a suitable
model is available for all typical applications. All model variants are listed with their character-
istic properties and functions are listed in the model overview at the beginning of this manual
(→1 Model range, p. 8).
As the overview table shows, the available models differ in their appearance mainly in the com-
pact system and split system, where the devices are tted with one or two fans, depending on
the nominal power.
The Aquarea series are distinguished by their maximum water inow temperature and perfor-
mance stability at very low outside temperatures as follows:
Maximum water inow temperature Performance at very low outside
temperatures
Aquarea LT 55 °C Heating capacity drops
Aquarea T-CAP 60 °C Heating capacity constant up to -20 °C
at35°Cwaterinowtemperature
Aquarea HT 65 °C Heating capacity constant up to -15 °C
at35°Cwaterinowtemperature
The illustration below shows the thermal output and COP of the Aquarea series LT, T-CAP and HT
with 12 kW for different outside temperatures and a water inow or return temperature of 35 °C or
30 °C.
12
10
8
6
4
2
0
5
4,5
4
3,5
3
2,5
2
1,5
1
0,5
0
+7°C -7°C -15°C +7°C -7°C -15 °C
AquareaLT
Aquarea T-CAP
Aquarea HT
Power (kW)
COP
The heat pump is operated by using the wired remote controller, which is placed in the building
and is linked to the compact device with a max. 15 meter long cable.
CAUTION
Danger of water pipes freezing in outside temperatures below 0 °C
If the heating circuit in the compact system is lled with water and the outside temperature falls
below 0 °C, the risk exists in the compact system that the water pipes may freeze. This can
cause a lot of damage to the device.
The client should therefore ensure the absence of frost by taking one of the following
measures:
►Operate the heating circuit using a food-safe antifreeze mixture (propylene glycol).
►Provide an additional cabinet heating in the compact device, to prevent the heating
circuit from freezing up.
►Empty the heating circuit by using a built-in device (manually or automatically) before
freezing starts.
4.5.2 Series
The Aquarea heat pump system has three different series that are in turn available in multiple
model variants. This is intended to offer the best possible solution to address individual heat
supply and air-conditioning requirements for buildings using Aquarea heat pumps.
Overview representation of series and model variants
Compact
Aquarea LT Aquarea HTAquarea T-CAP
Heating only
Single-phase
Three-phase
Single-phase Single-phase
Three-phase
Heating and coolingHeating and cooling
Combined
Hydro-module
Aquarea LT Aquarea T-CAP
Single-phase
Three-phase
Single-phase
Three-phase
Heating and coolingHeating and cooling
Split
Aquarea LT Aquarea HTAquarea T-CAP
Heating only
Single-phase
Three-phase
Single-phase
Three-phase
Single-phase
Three-phase
Heating and coolingHeating and cooling

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Type key hydro-module (Split systems)
Device type
WH: Air-to-water
heat pump
Construction
S: Hydro-module (indoor unit of the
split system)
Series
D:AquareaLT,X: Aquarea T-CAP,
Q: Aquarea T-CAP Super Quiet, H: Aquarea HT
Operating
mode1C: Heating and cooling, F: Heating only
Nominal heat-
ing power203 to 16 (corresponds to 3 to 16 kW)
Device
generation ... F, H ...
E-heating
Element
Power 3: 3 kW, 6: 6 kW, 9: 9 kW
Market E: Europe
Power supply 5: single phase, 8: three phase
Additional
equipment -1: Additional software functions
WH -S D C 07 H 3 E 5 -1
1 The devices of the Aquarea HT series can only be used for heating mode and have no cooling function.
2 The available performance classes differ according to the series. An overview of the performance classes for the
individual series is given in the model range (→1 Model range, p. 8).
Type key outdoor unit (Split systems)
Device type WH: Air-to-water heat pump
Construction U: Outdoor unit (of the split system)
Series
D:AquareaLT,X: Aquarea T-CAP,
Q: Aquarea T-CAP Super Quiet, H: Aquarea HT
Nominal heat-
ing power103 to 16 (corresponds to 3 to 16 kW)
Device
generation ... G, H ...
Market E: Europe
Power supply 5: single phase, 8: three phase
Additional
equipment -1: Additional software functions
WH -U D 07 H E 5 -1
1 The available performance classes differ according to the series. An overview of the performance classes for the
individual series is given in the model range (→1 Model range, p. 8).
4.5.3 Type key
For easy and clear denomination of the different Aquarea models, a type key is used, from
which the models with their respective specic properties and functions can be read off.
Example
WH-MDC05H3E5 is a compact heat pump unit (M) of the series LT (D) with cooling function (C),
a nominal power of 5 kW (05) of the generation H (H) for the European market (E) with a single
phase power supply (5).
Type key combination hydro-module (Split systems)
Device type
WH: Air-to-water
heat pump
Construction
A: Combination hydro-module (indoor unit
and hot water tank of the split systems)
Series D:AquareaLT/AquareaT-CAP
Operating
mode C: Heating and cooling
Nominal heat-
ing power10309: 3, 5, 7 or 9 kW, 0916: 9, 12, or 16 kW, 1216: 12 or 16 kW
Device
generation ... F, G, H ...
E-heating
Element
Power 3: 3 kW, 6: 6 kW, 9: 9 kW
Market E: Europe
Power supply 5: single phase, 8: three phase
Additional
equipment B: Additional equipment for 2nd Heating circuit
WH -A D C 0309 H 3 E 5 B
1 The available performance classes differ according to the series. An overview of the performance classes for the
individual series is given in the model range (→1 Model range, p. 8).

30 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
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Easy operation
●Operation and control for split systems with hydro-module or combination hy-
dro-module and for compact systems in the building
●Easy programming via the operator panel
●For safety reasons, the hydro-modules, combination hydro-modules and compact
devices are tted with FI protection switches.
Easy Maintenance and Assembly
Split system
●Compact design
●Easy control of the water pressure by using the manometer in the front panel of the
hydro-module or combination hydro-module
●Hydro-module, combination hydro-module and outdoor unit are easy to open
●Factory piped in combination hydro-modules are easy to connect
●Flexible assembly due to long pipelines
●Up to 30 metres with a height difference up to 20 metres (depending on model)
●The pipe connections to the outdoor units can be made in four directions (front,
rear, side, below).
Compact system
●No appreciable space requirement in the building, no coolant connections
●Easy opening of the device for maintenance work
Operating limits Split and Compact Systems
Water inow temperature (°C) Outside temperature (°C)
Cooling mode1Maximum 20 43
Minimum 5 16
Heating mode Maximum LT:55/ T-CAP: 60 / HT: 65 35
Minimum 25 –202
1 Only valid for models with cooling mode
2 At outside temperatures below the stated value, the heating capacity drops distinctly. This can cause switch-off of the
unit due to its internal safety functions.
4.6.2 Split system
The Aquarea split system consists of the hydro-module or combination hydro-module (in the
building) and an outdoor unit. Both units of the split system are congured such that they are
mutually matched to one another as a model i.e. the models of the outdoor unit cannot be com-
bined arbitrarily with the different hydro-module models. A suitable Aquarea split system model
consisting of hydro-module and outdoor unit is available for all typical applications.
Type key for Compact Devices
Device type
WH: Air-to-water
heat pump
Construction M: Compact device
Series
D:AquareaLT,X: Aquarea T-CAP,
H: Aquarea HT
Operating
mode1C: Heating and cooling, F: Heating only
Nominal heat-
ing power205 to 16 (corresponds to 5 to 16 kW)
Device
generation ... G, H ...
E-heating
Element
Power 3: 3 kW, 6: 6 kW, 9: 9 kW
Market E: Europe
Power supply 5: single phase, 8: three phase
WH -M D C 09 H 3 E 5
1 The devices of the Aquarea HT series can only be used for heating mode and have no cooling function.
2 The available performance classes differ according to the series. An overview of the performance classes for the
individual series is given in the model range (→1 Model range, p. 8).
4.6 Functions and technical data
4.6.1 Product features
Energy Efciency and Environment Friendliness
●Up to 80% of the energy is obtained from the ambient air for greater energy
efciency
●COP of 5.0 for the single phase 3-kW split system and 3-kW combination hy-
dro-module (both LT, H-Generation) or 5.08 for the single-phase 5-kW compact
system (LT) for A7 / W35
●Inverter technology allows a metered and controllable power output of the device
and thus contributes to energy savings with
●environmentally compatible coolant (R410A for Aquarea LT and T-CAP as well as
R407C for Aquarea HT)
● All devices are tted with a high-efciency pump.
High Comfort
●Optimum control
●Models available for heating mode as well as heating and cooling mode
(series Aquarea HT is only available for the heating mode)
●Optimised performance in relation to the return temperature
●Integrated control of the hot water tank and heating
●24-hours timer with mode control

32 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
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Combination Hydro-module H generation - Conguration “B” (for second heating circuit)
A
1
2
3
4
D
19

22
23
21
20
C
a b
14
15
16
17
18
E
cdefgh
11
B
6
5
7
8
9
10
11
13
12
A Exterior view
1 Front panel
2 Side panel
3 Operating unit
4 Manometer
B Internal view from front
5 Additional PCB CZ-NS4P (integrated)
6 Main PCB
7 Hot water tank temperature sensor
(not visible)
8 FI protection switch (electricity supply)
9 FI protection switch (E-heating element heat pump)
10 Pressure relief valve
11 Dirt catcher with 2 stop valves (1st heating circuit)
12 Security valve
13 Runoff socket hot water tank
C Detailed view “Upper section” from the front
a Water return (2nd heating circuit)
 b Waterinowheating(2ndheatingcircuit)
14 Quick vent valve
15 Vortexvolumeowmeter
16 E-heating element heat pump
17 Overload protection (x 2)
18 Circulating water pump (1st heating circuit)
D Detail view “Top section” from right
Front side
Rear side
19 3-way valve (1st heating circuit)
20 Dirt catcher with 2 shut-off valves (2nd heating
circuit)
21 Water temperature sensor (2nd heating circuit)
22 Water circulation pump (2nd heating circuit)
23 3-way valve (2nd heating circuit)
E Detail view “Bottom section”
(Cable connections)
c Water return (1st heating circuit)
 b Waterinowheating(1stheatingcircuit)
e Fresh water
 f Waterinowhotwater
g Refrigerant - hot gas line
 h Refrigerantuidline
4.6.2.1 Components
Combination Hydro-module H generation - Standard Version
A
1
2
3
4
B
5
6
7
8
9
10
11
D
18
192021222324
C
12
13
14
15
16 17
A Exterior view
1 Front panel
2 Side panel
3 Operating unit
4 Manometer
B Internal view from front
5 Main PCB
6 Hot water tank temperature sensor
(not visible)
7 FI protection switch (electricity supply)
8 FI protection switch (E-heating element heat pump)
9 Pressure relief valve
10 Safety valve
11 Hot water discharge nozzle
C Detailed view “Upper section”
12 Quick vent valve
13 Vortexvolumeowmeter
14 3-way-valve (not visible)
15 E-heating element heat pump
16 Overload protection (x 2)
17 Circulating water pump
D Detail view “Lower section” (Line connections)
18 Dirt catcher with 2 stop valves
19 Water return
20 Waterinowheating
21 Fresh water
22 Waterinowhotwater
23 Refrigerant - hot gas line
24 Refrigerantuidline

34 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Product Description
35
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Product Description
Hydro-module H-Generation
3
1
2
4
A
16
6
7
8
9
10
11
5
131415 12
B
11a
11b
a
b
c
d
c cb b12
C D
A Exterior view
1 Front panel
2 Side panel
3 Operating unit
4 Manometer
B Internal view from front
5 Quick vent valve
 6 Vortexvolumeowmeter
7 E-heating element heat pump
8 Overload protection (x 2)
9 10 litre expansion vessel
10 Circulating water pump
11 Dirt catcher with 2 stop valves (integrated)
11a Dirt catcher
11b Stop valve (x 2)
12 Water return
13 Waterinowheating
14 Refrigerant hot gas line
15 Refrigerantuidline
16 Safety valve
C Detail view from front with installed 3-way
reversal valve set CZ-NV1 (optional)
and
D Detail view 3-way reversal valve set
CZ-NV1 (optional)
a 3 Way valve (optional for hot water preparation)
 b Waterinowheating
 c Domestichotwatertankwaterinow
 b Commonwaterinow
4.6.2.2 Dimensions
i Note
All dimensions are indicated in millimetres (mm); the gures are however not to scale.
Hydro-module F Generation - Only for HT series
1
2
3
4
5
6
7
8
91011
12
13
14
15
16
17 18 19
20
1
2
3
4
5
6
7
8
91011
12
13
14
15
16
17 18 19
20
1
2
3
4
5
6
7
8
91011
12
13
14
15
16
17 18 19
20
A B C
A Exterior view
1 Front panel
2 Side panel
3 Handle
B Internal view from front
4 Operating unit
5 Manometer
6 Circulating water pump
7 Electronic PCB
8 FI protection switch
9 Safety valve
10 Flow monitor
11 Quick vent valve
12 Overload protection
13 10 litre expansion vessel
14 E-heating element heat pump
C View from below
15 Water discharge
16 Water return
17 Refrigerantuidline
18 Refrigerant - hot gas line
19 Waterinow
20 Cable glands