Panasonic Aquarea WH-MDF06E3E5 series User manual

2013
INSTALLATION
MANUAL
for Compact Systems
Order Nr. A2W-SPX-130305-021
Aquarea Air/Water Heat Pump – Heating and Cooling Systems

Service
For any questions on
Commissioning
Malfunctions
Technical support
our hotline is available
around the clock at
01344 853182
Nationwide service organisation
24/7 emergency service
Commissioning
Maintenance
Professional service processing
If required, cooling system installation support
Central spare part supply
Central call centre number for:
- Commissioning
- Malfunctions
- Technical support

Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
Table of contents
1 Introduction ........................................................................................................ 5
1.1 About this manual ............................................................................................ 5
1.2 Target audience
.............................................................................................. 5
1.3 Products covered
............................................................................................ 5
1.4 Symbols used
................................................................................................. 6
1.5 Tools required ................................................................................................. 6
1.6 To be provided by customer ................................................................................ 6
1.7 Installation sequence ........................................................................................ 7
2 Safety instructions
............................................................................................... 8
2.1 General hazard instructions for avoiding electric shocks ............................................. 8
2.2 General hazard instructions to avoid damage to health ............................................... 8
2.3 General hazard instructions for avoiding material damage ........................................... 9
2.4 General further information ................................................................................. 9
3 Device overview
.................................................................................................. 10
3.1 Components
................................................................................................. 10
3.2 Dimensions diagram
........................................................................................ 11
3.2.1 Mini compact unit with a nominal output of 6 to 9 kW ......................................... 11
3.2.2 Compact unit with a nominal output of 9 to 16 kW ............................................. 11
3.3 Accessories
.................................................................................................. 12
4 Location/Installing the device ................................................................................ 13
4.1 Location
....................................................................................................... 13
4.2 Installation
.................................................................................................... 15
5 Opening the device .............................................................................................. 16
6 Hydraulic installation
........................................................................................... 17

1 –4 Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
7 Electrical installation ............................................................................................ 22
7.1 Mains connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2 Inputs and outputs (external interfaces) ................................................................ 26
7.3 Installing the wired remote control ....................................................................... 29
7.3.1 Laying concealed cables ........................................................................... 31
7.3.2 Laying visible cables ................................................................................ 32
7.3.3 Connection to the compact unit ................................................................... 33
8 Commissioning
................................................................................................... 34
8.1 Commissioning
.............................................................................................. 34
8.1.1 Setting the standard pump ......................................................................... 35
  6HWWLQJWKHKLJKHIÀFLHQF\SXPS.................................................................. 36
8.1.3 Handover and instruction
.......................................................................... 36
8.2 Programming
................................................................................................ 37
9 Maintenance
....................................................................................................... 46
9.1 Checking the water pressure ............................................................................. 46
9.2 Checking the pressure relief valve ....................................................................... 46
9.3 Visual inspection of the circuit board .................................................................... 47
9.4 Cleaning the dirt trap ....................................................................................... 47
9.5 Checking the RCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.6 Resetting the temperature limit switch .................................................................. 48
9.7 Venting the system/Checking the quick vent ........................................................... 49
10 Recycling ........................................................................................................... 49
11 Appendix ........................................................................................................... 50
Commissioning report ............................................................................................ 50
Handover report ................................................................................................... 55
$FFHSWDQFHFHUWLÀFDWH ............................................................................................ 56
Error codes ......................................................................................................... 57

1 –5Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
1
Introduction
Introduction
About this manual | Target audience | Products covered
This manual provides you with information on simple and correct mount-
ing, as well as hydraulic and electric installation.
Ensure that you have read and understood the installation and safety in-
structions in this manual before you start work. Incorrect installation due
WRDIDLOXUHWRIROORZLQVWUXFWLRQVLQWKLVPDQXDORULQVXIÀFLHQWFRPSOLDQFH
with the instructions, can result in damage.
If you are unsure about the installation, please contact our service team
IRUFODULÀFDWLRQ01344 853182.
7KLVPDQXDOLVLQWHQGHGIRUTXDOLÀHGLQVWDOODWLRQHQJLQHHUVDQGHOHFWUL-
FLDQV,WLVQRWLQWHQGHGIRUXQTXDOLÀHGSHUVRQV
Electrical and plumbing installation work must be performed by a quali-
ÀHGHOHFWULFLDQRUSOXPEHU
This manual covers the following Aquarea heat pump systems:
1 Introduction
1.1 About this
manual
1.2 Target audience
1.3 Products
covered
Aquarea LT WH-MDF06E3E5*, WH-MDF09E3E5*,
WH-MDF09C3E5, WH-MDC09C3E5,
WH-MDF09C3E8, WH-MDC09C3E8,
WH-MDF12C6E5, WH-MDC12C6E5,
WH-MDF12C9E8, WH-MDC12C9E8,
WH-MDF14C6E5, WH-MDC14C6E5,
WH-MDF14C9E8, WH-MDC14C9E8,
WH-MDF16C6E5, WH-MDC16C6E5,
WH-MDF16C9E8, WH-MDC16C9E8
Aquarea T-CAP WH-MXF09D3E5, WH-MXC09D3E5,
WH-MXF09D3E8, WH-MXC09D3E8,
WH-MXF12D6E5, WH-MXC12D6E5,
WH-MXF12D9E8, WH-MXC12D9E8
Aquarea HT WH-MHF09D3E5, WH-MHF09D3E8,
WH-MHF12D6E5, WH-MHF12D9E8
'HYLFHVKDYHDKLJKHIÀFLHQF\SXPSDQGIXOÀOOWKHFULWHULDRIWKH(FRGHVLJQ'LUHFWLYH
valid from 2015 for energy related products (ErP)

1 –6 Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
Introduction
Symbols used | Tools required
The warnings in this manual absolutely must be heeded, as they are
safety-critical. The symbols have the following meanings:
We recommend that you use the following tools:
The following components must be provided by the customer:
 Phillips-head screwdriver
 Spirit level
 Electric drill
 Set of spanners
 Knife
 Tape measure
 Multimeter
 Torque wrench, 39.2 Nm
 Torque wrench, 58.8 Nm
 Gas leak detector
 2-way directional valve set
 3-way directional valve set
 Analogue room thermostat (e.g.
RAA20 Siemens) or program-
mable room thermostat
(e.g. REV200 Siemens)
 Anchoring to prevent tipping over
 Dirt trap (mesh width at least
500 to 600 μm)
 Propylene glycol antifreeze
mixture
 )OXVKPRXQWHGER[IRUÀWWLQJ
the wired remote control
 Heating circuit mixer closed-
loop control
 Dew point monitor
 Device for draining the system
 Insulation for pipelines
1.4 Symbols used
1.5 Tools required
1.6 To be provided
by customer
NOTE Further information
Warning! Material damage if not observed
Danger! Danger of fatal injury from electric shock if not observed
Danger! Danger of fatal injury or damage to health if not observed
³ ,GHQWLÀFDWLRQRIDVWHS

1 –7Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
1
Introduction
Introduction
Installation sequence
This installation manual is written so that the sequence of sections
corresponds to the sequence of installation steps to be performed.
These are primarily as follows:
1.7 Installation
sequence
No. Installation step Section no.
1 Installing the device 4
2Connecting the water pipes 6
3Filling and venting the system 6
4Connecting the device to the electricity mains 7.1
5Connecting inputs and outputs (interfaces) 7.2
6Installing the wired remote control 7.3
7Commissioning 8
12
3
7
64
5
SET
SELECT
SETTING
OFF/ON
WATER OUTLET
TIMER OUTDOOR
ACTUAL
HEATER
SETTING
STATUS
SERVICE
DEFROST
HEAT
COOL
TANK
QUIET
HEATER
FORCE
BOOSTER
STATUS
SEARCH
CANCEL
CLOCK FORCE SERVICE
ERROR
RESET
OFF/ON QUIET HEATER
MODE CHECKTIMER
OPERATION
POWER SUPPLY 1
LA1 LA2 LA3 N

Aquarea air/water heat pump – Installation manual for compact systems 03 / 20132 –8
Safety instructions
Hazard instructions for avoiding electric shock and damage to health
2 Safety instructions
2.1 General hazard instructions for avoiding electric shocks
2.2 General hazard instructions to avoid damage to health
 2QO\TXDOLÀHGHOHFWULFLDQVPD\SHUIRUPWKHHOHFWULFDOLQVWDOODWLRQZRUN
 All service and maintenance work must also be performed by a certi-
ÀHGHOHFWULFLDQRUDQDXWKRULVHGGHDOHU
 Keep children and persons who are unfamiliar with the system clear
of the working area.
 When working on the device, comply with the national and local
standards and regulations.
 The cables and electricity connections, including existing connec-
tions, must be suitable for the electrical capacity of the heat pump.
 'RQRWXVHQRQDSSURYHGPDLQVFDEOHVPRGLÀHGFDEOHVRUH[WHQVLRQ
cables to connect to the electricity mains.
 The device must be earthed correctly. It may not be earthed to gas
or water pipes, lightning conductors or the earthing of the telephone
system.
 Comply with the respective national wiring rules and safety
precautions for fault current. Panasonic recommends that
you use a RCD.
Danger! Observe and comply with the following hazard instructions.
,I\RXIDLOWRGRVRWKHUHLVDGDQJHURIHOHFWULFVKRFNRUÀUH
Danger! Observe and comply with the following hazard instructions. If you fail to
do so, there is a risk of fatal injury or damage to health.
 The refrigerant can cause freezing if it comes in contact with skin.
 2QO\XVHWKHUHIULJHUDQWVSHFLÀHG7KHUHIULJHUDQWPD\QRWEHPL[HG
with other types of refrigerant or replaced with other types of refrigerant.
Using other refrigerants can damage the device and result in safety
problems. The manufacturer accepts no responsibility or warranty if
refrigerants of types other than R410A are used for the Aquarea LT
series and T-CAP or R407C for the Aquarea HT series.

Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
2
Safety instructions
2 –9
Safety instructions
Hazard instructions for avoiding material damage | Information
2.3 General hazard instructions for avoiding material damage
2.4 General further information
 Only use the device in sealed systems. Use in an open-vented system
can result in excessive corrosion of the water pipes and increase the
risk of bacteria colonies forming in the water, legionella in particular.
 'RQRWLQVWDOOWKHGHYLFHLQORFDWLRQVZKHUHOHDNVRIÁDPPDEOHJDVHV
FDQRFFXU2WKHUZLVHWKHUHLVDULVNRIÀUHRUH[SORVLRQV
 All installation work for the water circuit must comply with all relevant
European and national regulations (including EN 61770).
 The compact unit is only intended for external installation and may
not be installed indoors.
 8VHRQO\HQFORVHGRUVSHFLÀHGSDUWV
 If the compact unit is to be installed close to the sea,
in highly sulphurous regions or regions with high oil-contents
(e.g. machine oil etc.), its service life may be reduced.
 Air / water heat pumps require planning permission in Wales and
Northern Ireland and must meet certain criteria in England and Scot-
land to be classed as a permitted development. If in doubt, check with
\RXUORFDOSODQQLQJRIÀFH
 For details on preventing water pipes freezing and heat and cold
protection, see the WRAS guidelines and BS EN 806 and BS 6700.
 The design handbook for split systems and compact systems
contains further information on the device.
Warning! Observe and comply with the following instructions. If you do not, there
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NOTE The following information provides recommendations or advanced
assistance.

Aquarea air/water heat pump – Installation manual for compact systems 03 / 20133 –10
Device overview
Components
3 Device overview
3.1 Components
1
8
a
b
13
6
2
7
9
4
10
11
3
12
5
14
Component name
1Electronic circuit board
(view without upper cabinet panel)
2Pressure relief valve (view without cover)
3Flow rate cut-out
4Manometer
53-phase water recirculation pump
(Figure shows standard pump)
6RCD (differs from model to model)
7Cable gland
8Front panel
9Upper cabinet panel
10 Temperature limit switch
(differs from model to model)
11 Additional electric heater
(3, 6 or 9 kW)
12 Expansion tank
13 Cover
14 Quick vent
Connection name
aWater return Ø R 1¼
bWater supply Ø R 1¼
Components of the compact unit with two fans

Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
3
Device overview
3 –11
Device overview
Dimensions diagram | Mini compact unit, with nominal output from 6 to 9 kW |
Compact unit with nominal output from 9 to 16 kW
3.2 Dimensions diagram
3.2.1 Mini compact unit with a nominal output of 6 to 9kW
3.2.2 Compact unit with a nominal output of 9 to 16kW
865 795
1,283
1
154
187
220
275
175
110
83.5
135
160
185
32039
2 3
150150 980
400
355.5
320
4
1Front view
2Side view
3Rear view
4Top view
'LPHQVLRQVRIFRPSDFWXQLWZLWKRQHIDQLQPP7KHDLUÁRZLVLQGLFDWHGE\DUURZV
1,410 1,340
154
400
355.5
320
187
220
275
175
110
83.5
135
160
185
1,283 32039
150
2 3
4
1
150 980
1Front view
2Side view
3Rear view
4Top view
'LPHQVLRQVRIFRPSDFWXQLWZLWKWZRIDQVLQPP7KHDLUÁRZLVLQGLFDWHGE\DUURZV

Aquarea air/water heat pump – Installation manual for compact systems 03 / 20133 –12
Device overview
Accessories
3.3 Accessories
No. Component Quantity Comments Included
1 Drain elbow 1 ×
2 Cable ties 3 ×
3 Cable bush 2 ×
4 Wired remote control 1 ×
5Add-on circuit board for solar thermal
connection CZ-NS2P 1
Add-on circuit board for
solar thermal connection
(compact systems)
6Add-on circuit board for solar thermal
connection CZ-NS2P 1
Add-on circuit board for
solar thermal connection
(mini compact systems)
7
Hot-water tank
WH-TD20B3E5 200 litres
WH-TD20B3E5 300 litres
1 Stainless steel tank
8
Hot-water tank
HR 200 200 litres
HR 300 300 litres
1 Enamelled
9
Hot-water tank
HR 300 300 litres
HR 500 500 litres
1 Enamelled
10 Temperature sensor installation set CZ-TK1
for third party tanks 1
Sensor with cable and immersion
sleeve for installation in third
party tanks
11
Additional casing heater unit
CZ-NE1P for series:
Aquarea T-CAP,
Aquarea HT,
Aquarea LT series
mini compact units
1
Heating band attached on the
ÁRRUSODWHLQVLGHWKHXQLWVFDVLQJ
to prevent the water incurred
during defrosting from freezing

Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
4
Location/
Installation
4 –13
Location/Installing the device
Location
4 Location/Installing the device
4.1 Location Weights of the compact units
Aquarea LT single-phase (one fan) 112 kg
Aquarea LT single-phase 153 kg
Aquarea LT three-phase 157 kg
Aquarea T-CAP single-phase 155 kg
Aquarea T-CAP three-phase 158 kg
Aquarea HT n. a.
The installation location must meet the following criteria:
General
 Even and horizontal
 Load-bearing (see device weight table)
 No outside temperature under -20 °C
 ,QVWDOODWLRQDWDKHLJKWVXIÀFLHQWWRSURWHFWDJDLQVWZHDWKHULQÁXHQFHV
such as snow or water levels
 The height difference of the liquid system circuit may not exceed 7 m
 Easy access for maintenance work
 Condensate must drain away easily
 No damage to other objects if water leaks
 If a solar installation is connected, the connection cable between
the solar pump station and the compact unit may not be longer than
10 metres
Minimum clearances
 The minimum clearances (see Figure) must be observed.
Minimum clearances of the compact unit to adjacent walls and objects, indicating the air
ÁRZGLUHFWLRQ
1Minimum clearance 100 mm
2Minimum clearance 300 mm
3Minimum clearance 1,000 mm
2
1
2
3

Aquarea air/water heat pump – Installation manual for compact systems 03 / 20134 –14
Location/Installing the device
Location
Air circulation
 In general, choose an installation location with good air circulation
 No additional guards such as awnings etc.
 No sources of heat or steam nearby
 No objects nearby which could short circuit the exhaust air
 No direct wind impact on the suction side of the unit
 If multiple units are used, observe the minimum clearance between
units
1Minimum clearance 100 mm
1
Correct alignment of multiple external or compact units
6RXQGSURRÀQJ
 The operating noise of the compact unit must not bother the user or
neighbours.
 The compact unit sound output direction should face the street side if
possible, as neighbouring rooms which require protection seldom
face in this direction.
Incorrect Incorrect Correct
Note
The design handbook for split
systems and compact systems
contains further information on
VRXQGSURRÀQJ

Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
4
Location/
Installation
4 –15
Location/Installing the device
Installation
4.2 Installation
Danger! At least four persons are required for installation work. Otherwise, the
weight of the device can lead to injuries.
Transport and lifting equipment must be suitable for the device weight.
If possible, the device should only be moved with the appropriate trans-
port and lifting equipment. The lifting equipment can be attached to the
base structure of the device using lugs.
³ Transport the device to the planned installation location.
³ Remove the packaging carefully.
³ Fasten the device with four M12 anchor bolts
(tightening force > 15,000 N)
Transport the device carefully to avoid damage. That includes placing /
lowering the device in the installation location.
For installation locations which can be impacted by strong winds, e.g.
wind between buildings, including building roofs, the compact unit must
be secured on-site with additional anchoring to prevent it toppling over.
1Floor
2Stone / gravel
3 &RQFUHWHRUÁRRUSODWH
4Anchor bolt
≥ 60 mm
≥
300 mm
>
20 mm
80
mm
4
33
4
2
1
Protection against toppling over via anchoring
0LQLPXPUHTXLUHPHQWVIRUDQFKRULQJWKHFRPSDFWXQLWWRWKHÁRRURUDIRXQGDWLRQOHIWRUGLUHFWO\WRDEDVHSODWHULJKW
Compact unit drilling template
980
1,280
355.5
320

Aquarea air/water heat pump – Installation manual for compact systems 03 / 20135 –16
Opening the device
Remove the front panel
³ Remove the 5 fastening screws
³ Push the front panel of the cabinet downwards to release
the safety catches.
³ Pull the front panel forwards to remove it.
Removing the upper cabinet panel
³ Remove the 11 fastening screws.
³ Lift the upper cabinet panel from the device.
Reverse the steps accordingly to close the device.
5 Opening the device
Danger! 7KHZRUNPD\RQO\EHSHUIRUPHGE\TXDOLÀHGRUFHUWLÀHGSHUVRQQHO
Ensure that the device is disconnected from the power supply before
you perform the steps listed below.
1
1
1
1Fastening screws
1Fastening screws

6 –17Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
6
Hydraulic installation
Hydraulic installation
6 Hydraulic installation
Danger! 7KHZRUNFDQRQO\EHSHUIRUPHGE\TXDOLÀHGRUFHUWLÀHGSHUVRQQHO
Follow these instructions to prevent damage to the compact unit and
the other components of the system:
 Flush the pipelines before connecting the device, to remove impurities.
Impurities can damage the components of the device.
 Ensure that the components installed in the wet circuit can withstand
high operating water pressures. Use only suitable sealants which can
withstand the pressure and temperature of the system.
 Never use worn pipes.
 Do not use a pipe wrench to mount the connections. Use two
adjustable wrenches to tighten the connection.
Warning! There must be at least 50 litres (for 12.0 to 16.0 kW devices) or 30 litres
(for 6 to 9.0 kW devices) of liquid in the system. If these values are not
reached, an additional storage tank must be installed.
The standard expansion tank can be used for heating systems
with a to-
tal water quantity in the system of less than 200 litres (without a hot-water
tank) and a static system height of no more than
7 metres (difference of
the highest point of the system to the expansion tank).
If the total water quantity is greater than 200 litres or greater static
heights are required, pressure retention must be ensured via an expan-
sion tank to be installed by the customer. In general, the pressure level
of the pressure relief valve must be observed. See the technical details
for the pressure level, to a maximum of 3 bar.
Aquarea heat pumps may only be installed as sealed systems without
direct contact of the heating water to the ambient air.
NOTE The compact units feature an expansion tank as standard (approx.
10 litres of air capacity, initial pressure of 1 bar). By contrast, the mini
compact units WH-MDF06E3E5 and WH-MDF09E3E5 with heating
capacities of 6
and 9 kW have an expansion tank with only 6 litres of
volume.
Accordingly, these devices can only be used for heating systems
with a total water quantity in the system of under 150 litres.
See the design handbook for split systems and compact systems for
connection variants.

6 –18 Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
Hydraulic installation
Legend
M
3-way directional valve/
3-way mixer
Drain funnel
Shutoff valve
Pressure-reducing valve
min.
50 lStorage tank
for minimum volume
Manometer
Pump
Non-return valve
Dirt trap
Pressure relief valve
Temperature sensor
Thermostatic radiator valve/
Single room controller valve
2YHUÁRZYDOYH
Water tapping point
Return
Supply
Control wire
Sample hydraulic installation with water heating and heating system (see Aquarea design handbook for other examples)
1Cold water connection
2Room thermostat
3Outside temperature sensor
(integrated in outdoor unit)
4Heating circuit mixer closed-loop control
(to be provided by customer)
5Hot-water tank WH-TD20B3E5
CLOSE OPEN N
1 2 3 4 5 6 7 8 9 10 11 1 2 13 14 15 16 17 18 19 20 21 22 23
CLOSE OPEN CLOSE OPEN N
COOL HEAT N L
N
M
M
1
2
3
4
5
min.
50 l
Schematic diagram – the relevant standards and directives must be observed!
Description of the functions of the sample hydraulic installation with water heating and heating
The hot-water tank 5is supplied with heat as an alternative to the heating circuits. For this purpose, the heat
pump controller opens the three-way directional valve towards the hot-water tank. Then, the hot-water tank is
charged to the target temperature with appropriate supply temperature.
In heating mode, the heat pump controller opens the three-way directional valve towards the heating circuits
and supplies them with heat. The supply temperature is controlled based on the outside temperature 3and
corresponds to the required temperature of the hottest heating circuit for mixed heating circuits. Heating circuits
with lower supply temperatures must be adjusted to the right temperature using heating circuit mixers 4(to
be provided by the customer) by adding return heating water. A room thermostat 2(to be provided by cus-
tomer) deactivates heating mode of the heat pump when it reaches the target room temperature and prevents
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and heating circuit mixers.
Vessel for increasing the total water volume -
to be used when the total volume is lower
than the minimum volume.

6 –19Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
6
Hydraulic installation
Hydraulic installation
³ Open the compact unit as described in Section 5.
³ Install the pipes, valves, dirt trap and other components in accord-
ance with the design documents.
³ Install a dirt trap (to be provided by the customer) upstream of
the water inlet (water return) of the compact unit (grid width at least
500 to 600 μm) to protect the heat pump. We recommend installing
a shutoff valve upstream and downstream of the dirt trap
, to make
subsequent maintenance work on the dirt trap easier.
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³ If a heat pump with a cooling function is used, install a 2-way direc-
tional valve to deactivate the heating circuits in cooling mode, where
applicable.
³ Install the 3-way directional valve (to be provided by the customer)
to switch from heating mode to water heating mode and vice versa.
As standard, the valve should be open towards the heating circuit
(contacts 4 and 6 are closed). The valve must also be CE compliant
and may not exceed the peak load of 12 VA.
³ Use Rp 1¼" nuts to connect the water inlet (labelled WATER IN) and
water outlet (labelled WATER OUT). Use a torque wrench to tighten
it, and apply the correct torque: 117.6 Nm .
³ Close the supply (water outlet) and return (water inlet) of the compact
unit at the heat exchanger of the hot-water tank. Ensure that
you do
not confuse the connections (supply = top, return = bottom).
³ Install a device for draining the system (to be provided by the customer).
Position of the dirt trap
1Water supply WATER OUT
2Dirt trap
3Water return WATER IN
4Union nut
5Connection
6Shutoff valve
1
2
3
4 65
Warning!
In cooling mode, humid air can
condense on the surface of the
heat transfer systems if the
temperature drops below the
dew point. This can damage
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slippery. As a result, you must
install suitable positioned dew
point sensors to ensure that
temperatures lower than the
dew point do not occur or drain
any condensate which forms
reliably. In addition, the pipe-
lines affected must be insulated
impermeably.
Warning!
Hydraulic decoupling between
the heat pump circuit and heat
emitter circuit is always required
when using Aquarea heat
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not be used.

6 –20 Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
Hydraulic installation
The customer is responsible for ensuring that the device does not
freeze. Please use one of the following options to do so:
 The heating circuit is operated with a food safe antifreeze mixture
(40 % propylene glycol mixture) for temperatures down to -20 °C)
 An additional heater unit in the compact unit prevents the heating
circuit freezing.
 The heating circuit is drained by a system to be provided by the
customer (manual or automatic).
³ Fill the system as follows:
³ Open all thermostatic radiator valves of the heating system, and all
other shutoff valves where applicable.
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³ Keep adding water or antifreeze mix until the manometer reaches
the nominal pressure.
³ Vent the system (see the Commissioning section). Then check the
pressure again and add liquid if necessary
Type of pipes/Fittings Minimum thickness of insulation layer
Internal diameter up to 22 mm 40 mm
Internal diameter from 22 mm to 35 mm 60 mm
Internal diameter from 35 mm to 100 mm 2 × internal diameter
Recommended thermal insulation of heat distribution and hot water pipes
³ Insulate the pipes in accordance with the latest UK building
regulations, although the below is recommended:
Warning!
In compact systems, there is a
risk of freezing if the heating cir-
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outside temperature falls below
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damage to the device.
Warning!
To prevent damage to the heat
pump from lime scale, please
consult BS 7593 “Code of
practice for treatment of water
in domestic hot water central
heating systems”.
1
1Manometer