auer HRC70 17 User manual

Made
in France
Manual ref: 1871442
Edition n°: 15.356
Installation and operating instructions
HRC70
High-temperature, modulating
HRC70 Heat Pump and Pilot
Energy Ecient
HRC70 17 single phase
Ref.151201
HRC70 17 three phase
Ref.151211
HRC70 20 three phase
Ref.151271
HRC70 25 three phase
Ref. 151221
The information contained in this document is non-contractual. Auer reserves the right to modify all technical data and equipment of our products without prior notice.
HRC70
High-temperature
modulating
heat pump
HRC70 Pilot

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
2
CONTENTS
TABLE DES MATIÈRES
1  PLEASE READ IMMEDIATELY ....................... 4
1.1 - Important information.......................................................................4
1.2 - Safety instructions and advice........................................................4
1.3 - Delivery terms and conditions........................................................5
1.4 - Storage and transport........................................................................5
1.4.1 - General information ................................................................................................ 5
1.4.2 - Transporting with a forklift truck ........................................................................ 5
1.4.3 - Transporting manually............................................................................................5
2  INTRODUCTION............................................. 6
2.1 - Standard conguration .....................................................................6
2.2 - Operating................................................................................................6
2.2.1 - Heat Pump operation..............................................................................................6
2.2.2 - Pilot operation........................................................................................................... 6
2.3 - Accessories (included) .......................................................................7
2.4 - Accessories available to order.........................................................7
3  INSTALLATION................................................ 9
3.1 - Installing the HRC70.......................................................................................................................................9
3.1.1 - Installation site .......................................................................................................... 9
3.1.1.1- Heat Pump installation site .................................................................10
3.1.1.2 - Condensates drainage .........................................................................11
3.1.1.3 - Heater cable for external condensate drainage .........................11
3.1.1.4 - Protection grid for the nned heat exchanger............................11
3.1.2 - Installing the Pilot...................................................................................................11
3.1.2.1 - Installation site........................................................................................11
3.1.2.2 - Fitting the Pilot to the wall .................................................................12
3.1.2.3 - Fitting and placement..........................................................................12
3.2 - Plumbing connections.....................................................................13
3.2.1 - Hydraulic connections for the installation ....................................................13
3.2.2 - Hydraulic connection : Heat Pump circuit.....................................................14
3.2.3 - Heat Pump and Pilot relief valve.......................................................................14
3.2.4 - Desludging................................................................................................................14
3.2.5 - Heat Pump water inlet lter (supplied) ..........................................................15
3.2.6 - Heating circuit .........................................................................................................15
3.2.6.1 - Heating circuit ow rate ......................................................................15
3.2.6.2 - Backow prevention device...............................................................15
3.2.6.3 - Degassing the heating circuit............................................................15
3.2.6.4 - Insulating the piping ............................................................................15
3.2.6.5 - Expansion vessel ....................................................................................15
3.2.6.6 - Frost protection and water treatment............................................15
3.3 - Installation advice for dierent types of transmitters and
dierent uses.......................................................................................16
3.3.1 - For radiator / fan coil unit circuits.....................................................................16
3.3.2 - For underoor heating circuits..........................................................................16
3.3.3 - For domestic hot water ........................................................................................16
3.3.4 - For swimming pools..............................................................................................16
3.4 - Electrical control connections.......................................................17
3.4.1 - Connecting the Heat Pump control.................................................................17
3.4.1.1 - 2-core sheathed cable .........................................................17
3.4.2 - Connecting the Pilot..............................................................................................18
3.4.3 - Temperature controls............................................................................................19
3.4.3.1 - Installation precautions.......................................................................19
3.4.3.2 - Room thermostat...................................................................................19
3.4.3.3 - Outdoor temperature sensor.............................................................19
3.5 - Connecting to power supply.........................................................19
3.5.1 - Recommendations for connecting the system to the power supply..20
3.5.2 - Connecting the Pilot to the power supply ....................................................20
3.5.2.1 - Pilot: 230V single phase connection...............................................20
3.5.2.2 - Pilot: 400V three phase connection ................................................21
3.5.3 - Connecting the HRC70 Heat Pump to the power supply.........................22
3.5.3.1 -HRC70 Heat Pump:230V single phase connection.......................... 23
3.5.3.2 -HRC70 Heat Pump: 400V three-phase connection ......................... 23
3.5.4 - Electrical protection for the compressors......................................................23
4  APPLIANCE CONFIGURATION .................... 24
4.1 - Control box ..........................................................................................24
4.1.1 - Display screen: symbols and what they mean.............................................24
4.1.2 - Commonly displayed symbols...........................................................................25
4.1.3 - Unlocking ..................................................................................................................25
4.1.4 - Language...................................................................................................................25
4.2 - Installer Menu .....................................................................................25
4.2.1 - Selecting the right back-up for the installation...........................................25
4.2.2 - Configuration of the HRC70 Heat Pump and circuits ..................................26
4.2.2.2 - Conguring circuit 1.............................................................................26
4.2.2.3 - Circuit 1 temperature control............................................................26
4.2.2.4 - Conguring circuit 2.............................................................................27
4.2.2.5 - Circuit 2 temperature control............................................................27
4.2.3 - setting operating parametres...........................................................................27
4.2.3.1 - Setting the heating curve ...................................................................29
4.2.3.2 - Maintaining the target temperature (Comfort mode) .............29
4.2.3.3 - Target temperature in‘Eco’ mode.....................................................29
4.2.3.4 - Target temperature in Frost Protection mode.............................29
4.2.3.5 - Resetting installer parametres 205 to 230 ....................................................30
4.2.3.6 - Selecting the HRC70 Heat Pump heating capacity......................30
4.2.4 - Forced command of the system..........................................................................30
5  USE................................................................. 31
5.1 - Setting the date and time...............................................................31
5.2 - Displaying the control values........................................................32
5.3 - User Menu ............................................................................................32
5.3.1 - Setting target temperatures...............................................................................33
5.3.1.1 - Setting the AmbiEnce target temperature......................................33
5.3.1.2 - Setting the eco target temperature................................................33
5.3.1.3 - Setting the anti freez target temperature ..................................33
5.3.1.4 - Setting the domestic hot water temperature..............................34
5.3.1.5 - Setting the swim. pool temperature.................................................34
5.3.2 - Setting a vacation period........................................................................................ 34
5.3.3 - Temporary override of the programmed heating mode.........................34
5.3.4 - boost function .......................................................................................................34
5.3.5 - Selecting summer / winter mode....................................................................35
5.3.6 - Selecting the LANGUage.............................................................................................................................35
5.3.7 - BeeP alert...................................................................................................................35
5.3.8 - Accessing the INST. MENU ..........................................................................................................................35
6  MAINTENANCE AND REPAIRS .................... 35
6.1 - General information .........................................................................35
6.2 - Hydraulic circuit maintenance......................................................35
6.2.1 - Water circuit condensate drainage ..................................................................35
6.2.2 - HRC70 Pilot................................................................................................................36
6.2.3 - Heating circuit maintenance..............................................................................36
6.3 - Heat Pump maintenance................................................................36
6.4 - Electrical components maintenance..........................................36

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 3
6.5 - Checking operating temperatures..............................................36
6.5.1 - Accessing control readings and internal / external controls ..................36
6.5.2 - Accessing calculated data...................................................................................37
6.5.3 - Accessing the meters............................................................................................38
6.6 - Errors which are not signalled by error message or alert....39
6.7 - Compressor start-up faults.............................................................40
6.8 - Alerts and errors which are signalled by the appliance.......40
6.9 - Error messages....................................................................................41
6.9.1 - Errors and solutions...............................................................................................41
6.9.2 - Operating in case of error....................................................................................43
6.10 - Sensor data curve charts ..............................................................45
6.10.1 - Water inlet and outlet HRC70 Heat Pump and HRC70 Pilot De-icing sensor
- Air intake sensor -
Sensors tted to compressors 1 and 2 -
Swimming pool sensor - DHW sensor.............................................................45
6.10.2 - Outdoor sensor.....................................................................................................46
NOTES / MAINTENANCE ..................................46
6.11 - Decommissioning and disposal.................................................46
7  PARTS ............................................................47
7.1 -HRC70 Heat Pump................................................................................47
7.2 - Electrical boxes...................................................................................48
7.3 - HRC70 Pilot ............................................................................................49
8  WARRANTY ................................................... 50
8.1 - Warranty limits....................................................................................50
8.1.1 - General information ..............................................................................................50
8.1.2 - Cases (non limited) for exclusion from warranty ........................................50
8.1.2.1 - Heating circuit water ............................................................................50
8.1.2.2 - Handling....................................................................................................50
8.1.2.3 - Installation site........................................................................................50
8.1.2.4 - Electrical connections ..........................................................................50
8.1.2.5 - Hydraulic connections .........................................................................51
8.1.2.6 - Accessories...............................................................................................51
8.1.2.7 - Maintenance............................................................................................51
APPENDICES...................................................... 51
A1 - Dimensions...........................................................................................51
A1.1 -HRC70 Heat Pump .....................................................................................................51
A1.2 - HRC70 Pilot ..................................................................................................................52
A2 - Technical data......................................................................................52
A2.1 -HRC70 Heat Pump .....................................................................................................52
A2.2 - HRC70 Pilot ..................................................................................................................53
A3 - Frost protection ..................................................................................53
A4 - Sizing the expansion vessel............................................................54
A5 - Programming heating modes .......................................................54
A5.1 - Creating a new programme................................................................................55
A5.2 - Copying existing programmes...........................................................................55
A5.3 - Changing a programme .......................................................................................56
A5.4 - View programme.....................................................................................................56
A6 - Heating circuit water treatment....................................................57
A6.1 - Preparing the hydraulic circuit (rinsing) .........................................................57
A6.2 - Water for lling........................................................................................................57
A6.3 - Heating circuit treatment.....................................................................................57
A6.4 - Frost protection ......................................................................................................57
A7 - Performance tables............................................................................58
A7.1 - HRC70 Heat Pump, 17kW .......................................................................................58
A7.2 - HRC70 Heat Pump, 20kW ......................................................................................58
A7.3 - HRC70 Heat Pump, 25kW .......................................................................................58
Hydraulic schematic diagrams:
- 1 RADIATOR CIRCUIT- -swimming pool possible-........................59
 1 UNDERFLOOR HEATING CIRCUIT- - pool possible-..................60
-2 RADIATOR CIRCUITS- -pool possible- ............................................61
-2 UNDERFLOOR CIRCUITS - -pool possible-....................................62
-1 RADIATOR CIRCUIT/ + DHW- -pool possible- .............................63
-1 RADIATOR CIRCUIT + POOL-.............................................................64
-1 POOL CIRCUIT + DHW -......................................................................65
-1 DIRECT CIRCUIT and 1 MIXED CIRCUIT with optional 2nd circuit
at lower temperature (Ref.751014) -pool possible- ..............66
-2 DIRECT CIRCUITS and 3rd MIXED CIRCUIT with an optional
2nd circuit at a lower temperature (Ref.751014) and optional
2-way motorised valve for 1st direct circuit (Ref. 740022) -pool
possible-................................................................................................67
Electrical and internal wiring diagrams:
HRC70 Heat Pump - 17kW single phase- ..............................................68
HRC70 Heat Pump- 17kW three phase- ................................................70
HRC70 Heat Pump- 20kW three phase- ................................................72
HRC70 Heat Pump- 25kW three phase - ...............................................74
HRC70 Pilot electrical diagram -..............................................................76
HRC70 Pilot internal wiring diagram -....................................................80
A8 - Electricity provider information form.........................................82

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
4
1.1 - Important information
1 - PLEASE READ IMMEDIATELY
These installation and operating instructions form part of the appliances which they refer to. In order for the warranty to be valid,
they must be read before using the appliance.
This manual must be kept and passed on to successive users for future reference. It will be considered as
evidence in case of litigation.
The high temperature Heat Pump absorbs the calories contained in outdoor air, transforms them into useful energy and transfers them to
the heating water for your home. AUER cannot be held responsible for any other usage of the appliance.
The safety advice and instructions which are given here must be strictly respected.
Before making any connections, make sure that the appliances are compatible with the installation.
Before switching the system on, make sure that the network voltage to be applied to the appliances is the same as the voltage indicated on
their rating plates.
Before undertaking any maintenance or handling or in case of the appliances functioning incorrectly or not at all, always disconnect from
the mains power supply and seek advice from a specialist.
AUER declines any responsibility for damage caused by these instructions not being followed and any errors due to improper handling,
installation or usage.
These installation and operating instructions are subject to change without prior notice.
- It is the responsibility of the installer and
the client to contact the electricity provider and
ensure that the appliance is compatible with
the power grid before connecting the HRC70
Heat Pump (see the information form which is
an appendix to this document).
- The power grid impedance value must be less
than the Heat Pump impedance Zmax (see §
"Connecting the HRC70 Heat Pump to the power
supply").
- If electrical installation standards are not
respected, irreversible damage could be
sustained to the HRC70 Heat Pump, which will
not be covered by the manufacturer’s warranty.
ELECTRICAL INSTALLATION
RECOMMENDATIONS
- Rinse and clean the hydraulic heating
circuit before connecting the Heat Pump
and Pilot.
- The appliance only works when lled with
water. Never switch the appliance on if it has not
been properly purged and lled with water.
- The lter valve protects the Heat Pump; an
annual check on the condition of the lter must
be carried out.
- We recommend that you check for sludge
and limescale from time to time and clean if
necessary. The appliance must be switched o
before any cleaning is undertaken.
- Always switch the appliance o before working
on any electrical parts.
Caution: the fan may still continue to run
through inertia even when the appliance has
ben switched o.
- Never put water on the control components
or any electrical parts. Switch o the appliance
before cleaning.
HYDRAULIC INSTALLATION
RECOMMENDATIONS

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 5
1.2 - Safety instructions and advice
• The Heat Pump must only be installed outdoors.
• This appliance is not intended for use by people (including
children) who have reduced physical, sensory or mental
capacities, or by people who have insucient experience or
knowledge of the product, unless they are being supervised by
someone who is responsible for their safety and in possession of
the instructions on how the appliance should be used.
• Installing the Heat Pump indoors is strictly forbidden.
• The Heat Pump has an operating range of -20°C to 40°C. When
the temperature falls below -20°C, the installation is no longer
heated by the Heat Pump, but by the back-up.
• It is FORBIDDEN :
- to let the Heat Pump run using air intake which contains
solvents or explosive matter
- to use air intake which contains grease, dust or aerosol
particles
- to connect vented exhaust hoods
• It is FORBIDDEN to use the appliances if the installation is not
lled with water
• All work undertaken on the installation must be carried out by
a qualied professional with the appliances disconnected from
the mains power supply.
• This appliance must be installed in accordance with national
electrical installation regulations.
• Check that the installation is equipped with a properly sized and
connected ground cable.
This CE-approved unit is in compliance with the essential
requirements of the following directives:
- low voltage 2006/95/CEE (standard EN 60.335.1)
- electromagnetic compatability 2004/108/CEE (standard EN
55014.1 / EN 55014.2).
• Any work undertaken on the refrigerant circuit must be carried
out by a qualied professional with a category 1 certicate
of aptitude. It is prohibited to release refrigerant into the
atmosphere: it is mandatory to recover the refrigerant before
beginning any work on the circuit.
The Heat Pump uses type R290 refrigerant. Given the ammable
nature of this uid, any work done on the refrigerant circuit must
be carried out using the correct equipment and in compliance
with all current regulations. In case of handling the uid (recovery,
evacuation or relling), the machine must be switched o. Do not
smoke or light any ame ( e.g. lighter, blowtorch) when handling the
uid. If any work needs to be undertaken on the refrigerant circuit
using a ame (e.g. a blowtorch) the refrigerant must be evacuated
rst and replaced with nitrogen.
1.3 - Delivery terms and conditions
In general, the material is transported at the recipient’s own risk.
It is essential to check that all the elements have been received
and that no damage has been sustained during transport upon
receipt of the appliance and before beginning the installation
procedure.
Heat Pump
Accessories
Pilot
1.4 - Storage and transport
Acceptable transport temperatures are from -20°C to +60°C.
1.4.1 - General information
1.4.2 - Transporting with a forklift truck
1.4.3 - Transporting manually
The appliances must be stored and transported in their packaging
on a wooden pallet and completely empty of water.
When being transported by a forklift truck, the Heat Pump must
remain upright on a wooden pallet.
When moving the Heat Pump do not lift or lower the unit suddenly
as it can easily lose its balance. It should also be suitably secured to
prevent it from tipping over.
The Heat Pump can be manually transported using 2 26mmØ bars
or by putting straps through the holes provided.
Ø 26mm
bar
Do not damage
the heat exchanger
ns during handling or
transport.
Heat Pumps
should never be
laid on their sides. Do not
tilt the appliance more
than 30°

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
6
2.1 - Standard conguration
Indoor
installation
only
2 - INTRODUCTION
Outdoor
installation
only
The group is composed of an exterior unit (Monobloc high
temperature Heat Pump, to be installed outdoors only) and
an interior unit (Pilot, to be installed indoors only) . These
units are connected together by a hydraulic connection and a
communication bus.
The air to water Heat Pump collects the calories from outdoor air
and transfers them to the heating water circuit with high energy
eciency.
The Pilot maintains the regulation and hydraulic distribution of
the installation.
The Pilot is pre-equipped and designed for heating installations
in domestic or tertiary premises.
The Pilot is pre-congured for heating a radiator circuit which is
controlled from a room thermostat from the Heat Pump only.
You will need to congure the Pilot accordingly if you wish to
connect it to an existing boiler (or if using electrical back-up from
0 to 6kW) or when connecting it to an underoor heating circuit,
a secondary heating circuit, a domestic hot water system or a
swimming pool circuit.
If the required heating capacity is higher than the capacity
delivered by the Heat Pump, the Pilot can provide an extra power
boost, either through the boiler or its electrical back-up (0-2-4- or
6kW) depending on how much is required.
NB: The Heat Pump is designed solely for heating
purposes. It cannot be used for cooling.
2.2 - Operating
2.2.1 - Heat Pump operation
2.2.2 - Pilot operation
This is a closed pressurised system in which the refrigerant serves
as a medium for transferring energy.
The evaporator (4) is a refrigerating exchanger which extracts
calories from the air. The humidity in the air condenses on
contact with the cold surface, condenses and forms water
(evacuation in (8)).
The capacitor (5), a plated heat exchanger which is hydraulically
linked to the heating installation (7) via the Pilot, enables the
water in the circuit and in turn the building, to be heated.
1112 22
3
4
5
6
7
8
In cold weather only
compressor 2 is used.
The fan (6) runs at speed 2.
In extreme cold, both
compressors (1 & 2) are used
at the same time . The fan (6)
runs at speed 3.
1 : Compressor 1
2 : Compressor 2
3 : Expansion valve
4 : Evaporator
5 : Capacitor
6 : Fan
7 : Leaving / return point for radiator
circuit
8 : Condensates draining
The Pilot must always remain connected to the Heat Pump.
It ensures the decoupling of the water ow from the Heat Pump
and the heating circuit(s) (radiators, underoor heating or fan coil
units). It enables the degassing of the air, de-sludging and the
heating installation to operate safely.
The Pilot comes
pre-assembled with
a removeable front
panel that allows
access to all the other
parts of the appliance.
The 60-litre tank is
made of steel and
thermally insulated.
The front of the
appliance is made
up of an electronic
display screen with
control buttons and
an electronic circuit
board containing
all the electrical
connections.
HRC70 Pilot
2 power supplies
230V single
phase or 400V
three phase
HRC70 Heat Pump
Communication bus
2-core sheathed cable
Room
thermostat
Radiator
circuit
Hydraulic
connection
Interior (only) Exterior (only) Mid-season, only
compressor 1 is used.
The fan (6)
runs at speed 1.

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 7
2.3 - Accessories (included)
The components described below are included with the Pilot but
they are not pre-assembled:
Outdoor temperature sensor
2 core sheathed cable linking the
Heat Pump and the Pilot (lgth10m)
It is pre-tted to the Heat Pump, but needs connecting to the
Pilot
Hydraulic connection kit lgth 1.5m
2.4 - Accessories available to order
Interactive room temperature sensor enables you to
control the temperature of the heating zone it is installed in
(Ref.751009)
Underoor heating temperature
limiter (UTL) at 65°C with manual
reset for underoor heating installations.
The jubilee clips and cables are included.
(Ref.710111).
2 core sheathed cable for linking the Heat Pump
and
the Pilot (lgth 20m)
To be used instead of the 10m-long cable which is included
with the appliance (Ref.751005)
Non chrono-proportional wireless room
thermostat -THRnc-
(Type on/o). Programmable thermostat with wireless radio
frequency transmission (Ref.710172). Needed when it is not
possible to wire a link between the Pilot and room thermostat.
Anti-frost element
Used to prevent frost from forming on the inside of the
condensates pipe. (Ref.751004)
2nd direct heating circuit (radiators)
Including inlet and outlet pipes, circulator pump and wiring
(Ref.751003)
2nd heating circuit with motorised 3-way valve
(underoor heating)
Including inlet and outlet pipes, 3-way motorised valve,
circulator pump, electronic control with 3WV leaving water
and outdoor temperature sensors, room temperature
corrector and underoor heating temperature limiter (UTL)
(Ref.751007)
Optional control kit for swimming pools in
summer enabling you to substitute a swimming pool on
circuit 1 in summer for the heating which runs on it in winter.
(Ref.751006)
DHW or swimming pool sensor (Ref.710029)
  1’’ valve with (500µm) built-in lter which is used to
protect the Heat Pump’s plated heat exchanger
Cap
which enables you
to access the filter
when the valve is
closed
1’’ check valve
Between the HRC70 Heat Pump and the
HRC70 Pilot

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
8

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 9
3.1 - Installing the HRC70
3 - INSTALLATION
3.1.1 - Installation site
The Heat Pump must always be transported in a vertical position,
even during installation. It can be manually transported using
2 26mm Ø bars in the holes provided. Do not use the hydraulic
connections to move the appliance, take hold of it using the four
bottom corners.
The installation must be carried out by a qualied installer, taking
all necessary precautions to avoid any risk of accident or any
material damage.
The Heat Pump is specically designed to be installed outdoors,
in an open space which is not subject to excessive dust. Under no
circumstances must it be installed in enclosed premises.
It is designed to operate in rain, but it can also be installed under
a shelter as long as it is well ventilated (the opening should be
large enough to ensure that air can ow freely to the air intake
point and the air rejection point on the fan).
ON THE GROUND OR
ON A PATIO
(open space)
NEXT TO A WALL
+ 3dB (A)
IN A CORNER
+ 6dB (A)
IN A YARD
+ 9dB (A)
TO THE SIDE OF A WINDOWUNDER A WINDOW
THE NOISE SCREEN MUST BE MADE FROM
INSULATED MATERIALS
CORRECT
CORRECT

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
10
3.1.1.1- Heat Pump installation site
Minimum distances to respect when installing the Heat Pump
(mm).
Always make sure the heat exchanger ns are
protected when moving the appliance
The Heat Pump must be handled with care and not be
subjected to any impacts, especially as it is placed on the
ground.
The Heat Pump must be installed on a hard
and stable base which is suciently raised
from ground level to avoid any risk of damage in
case of ooding or snow.
•The Heat Pump must only be installed
outdoors.
• It is forbidden to install the appliance in enclosed,
unventilated premises.
• Do not restrict or block air intake or rejection to
the fan. No object should impede the ow of air
over the heat exchanger. The Heat Pump should
be placed out of the way of prevailing winds.
• Do not install the Heat Pump near sources
of excessive heat, combustible materials or
ventilation points on adjacent buildings.
• Do not install the Heat Pump near kitchen or
workshop outlet ducts as this could result in
a mixture of oil and air settling on the heat
exchanger ns and hampering its performance.
• Do not install the Heat Pump in areas where
inammable gases or acid or alkaline substances
are present as this could irrevocably damage the
copper / aluminium heat exchanger.
• Avoid installing the Heat Pump in a location
subject to noise reverberation or near to windows
and corners of buildings.
• As the condensates drain trough slopes
downwards, the Heat Pump must be on a level
base.
•The Heat Pump must be easily accessible to
faciliate inspections and maintenance.
50Cm
Mini
1m
Mini
50Cm
Mini
0
C
m
in
i
1m
Mini
50Cm
Mini
2m
Mini
À ÉVITER
À
ÉV
ITE
R

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 11
3.1.1.2 - Condensates drainage
When the appliance is running in frost protection mode,
the condensed water must be drained o. In order for the
condensates to drain properly, the drainage trough and hole must
be kept clean and free of any debris such as leaves or grass.
If the condensates drainage pipe is connected to the rainwater
drainage system we would advise you to use a siphon.
Do not use tools to remove ice, this could damage the heat
exchanger.
The Heat Pump comes with a transparent, exible drainage pipe
for the condensates (20 / 25mm Ø) which does not overlap onto
the outside.
Before activating the appliance, this exible pipe must be
connected to one of the two holes which are provided for this
purpose:
- Remove the back panel of the Heat Pump
- Position the pipe in the place you have chosen after
drilling a hole in the grommet
a - Draining from underneath the Heat Pump
This solution is recommended for minimsing the risk of ice at
the condensates drainage point
b - Draining from the back of the Heat Pump
is an acceptable solution but in this case an external heater
cable needs to be connected (Ref. 751004). Please refer to §
"Heater cable for external condensates drainage" and also the
instructions which are provided with it.
View from above
showing position of opening in concrete slab (case a)
3.1.1.3 - Heater cable for external condensate
drainage
3.1.1.4 - Protection grid for the nned heat
exchanger
The Heat Pump is built with the option of adding a heater cable
to prevent any frosting on the condensates drainage circuit. This
heater cable (option Ref.751004) is connected in the electrical box
on the terminals marked CC on the electronics board. It must be
installed in accordance with the instructions supplied with it, in or
around the condensates drainage pipe, on the outside of the Heat
Pump.
The plastic grid which protects the nned heat exchanger may
be removed once the Heat Pump is in position on its denitive
installation site.
In order to remove the plastic grid, simply cut it away from its
attachment points.
There is still a risk of damage to the ns due to external factors
(for example, being close to a well-frequented walkway or
throroughfare), so it is preferable to leave the protective grid in
place.
Caution: The ns are fragile and sharp. Make sure that the air
passages are kept clean and free of any blockages (take care not
to bend the ns when doing so).
Never clean the nned heat exchanger with a
high-pressure hose or any other pressurised
cleaning equipment.This could damage the ns.
The Pilot weighs 110kg when lled with water.
Make sure that the wall bracket can support
this weight.
3.1.2 - Installing the Pilot
3.1.2.1 - Installation site
The Pilot should be installed in premises which are protected from
frost and and bad weather conditions. It should be installed as
close as possible to the Heat Pump and not exceed the maximum
distance. The maximum distance depends on the diametre of
the piping and the amount of elbows used (see the "Hydraulic
connections" table). The 2-core sheathed cable which provides
the bus link between the Pilot and the Heat Pump measures 10m.
If needed there is a 20m option available (Ref.751005).
Condensates drainage
trough
Heater cable
Grommet membrane (case b)
Plastic cap (case a)
Opening in concrete
slab (case a)
Back of HRC70 Heat Pump
Front of HRC70 Heat Pump

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
12
3.1.2.2 - Fitting the Pilot to the wall 3.1.2.3 - Fitting and placement
The Pilot must be xed vertically to a strong supporting wall
using three Ø8 lag screws.
Removing the
front panel
The Pilot must be tted at least 300mm above any obstacles to
enable the hydrualic connection to be made with the bottom of
the appliance.
It should be tted at least 100mm away from the ceiling to allow
easy access to the manual air valve.
It must be tted at least 100mm away from walls on either side.

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 13
All piping should be thermally insulated,
especially the connecting pipes from the Pilot
to the Heat Pump.
BCP = Boiler circulator pump (not supplied)
EV = Expansion vessel (not supplied)
SV = Sludge valve
CV = Check valve
BCV = Boiler check valve (not supplied)
• Fit the tee along with the manual air valve onto the outgoing water outlet of the Heat Pump.
• Install two 30mm Ø exible pipes of at least 1.5m in length to the water inlet and outlet holes on the Heat Pump (outside the
building).
• Carefully insulate the pipes to minimise heat loss.
• Take care to respect a 240mm Ø minimum radius of curvature so as to avoid damaging or bending the exible pipe.
These exible pipes are used to decouple the Pilot from the rest of the hydraulic installation (they MUST be connected as
the Heat Pump stands on silent blocks).
The Heat Pump is equipped with a hydraulic
pressure relief valve set at 2.5 bars. A service
pressure below this value should be maintained.
3.2.1 - Hydraulic connections for the
installation
3.2 - Plumbing connections
In order to ensure that the uids can circulate properly it is advisable to check that the sizing is properly adapted to the circuit between the
Heat Pump and the Pilot.
HRC70 PILOT
REMOVE BOTH CAPS WHEN
CONNECTING TO A BOILER
BCV
BCP
EXISTING
BOILER
RADIATORS
SV
CV
EV
FLEXIBLE HOSE
FLEXIBLE HOSE

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
14
3.2.2 - Hydraulic connection : Heat Pump circuit 3.2.3 - Heat Pump and Pilot relief valve
3.2.4 - Desludging
When the heat pump is running at full power the ow rate
must be high enough to ensure that the temperature dierence
between the outgoing and incoming water is no greater than 5°C
(take a temperature reading when the HRC70 is in heating mode
and the system is fully functioning).
The hydraulic connection section between the Heat Pump and
the Pilot must be sucient.
Using the tables below, determine the minimum inner diametre
of the connection piping needed depending on the distance
which separates the Heat Pump from the Pilot:
Heat pump model 17kW 20kW 25kW
Minimum nominal flow rate 1350 L/h 1550 L/h 1850 L/h
Maximium pressure 2.5 bar 2.5 bar 2.5 bar
minimum piping Ø
if distance* between HP and control < 15m 24/26 28/30 32/34
if distance* between HP and control < 25m 28/30 32/34 36/38
if distance* between HP and control < 50m 32/34 36/38 42/44
* distance com
p
rises full circuit
Make sure that all sections of piping are tted with functional and
accessible air valves.
The hydrualic connection between the Heat Pump and the Pilot
can be made using steel, copper or PEX piping with a diametre of
at least 1’’.
The hydraulic kit must be tted using exible piping on the water
inlet and outlet points of the Heat Pump in order to prevent any
vibrations being transmitted to the heating system.
The Heat Pump and the Pilot are both tted with a pressure relief
valve.
The pressure relief valve on the Heat Pump sets the maximum
acceptable pressure in the installation (2.5 bars when hot). The
maximum service pressure on the Heat Pump must, consequently,
be lower than 2.5 bars.
Example : If the Heat Pump is positioned 5m below the Pilot , the
pressure reading on the Pilot would be 0.5 bars less than the
real pressure of the water in the Heat Pump. In this case, the
maximum pressure for the Pilot would be 2 bars.
Therefore it would be advisable to ll the heating circuit at
an intermediary pressure (between 1 and 1.5 bars).
In case of operating with boiler back-up these relief valves MUST
be tted in addition to the ones which the boiler is already
equipped with.
The connections and evacuation conduits for the pressure relief
valves must be made from materials which are resistant to high
temperatures and corrosion.
PS : Pilot pressure sensor
RV : Pressure relief valve for Pilot, set at 3 bars
BRV : Pressure relief valve for existing boiler
HPRV : Pressure relief valve for Heat Pump set at 2.5 bars
The Pilot has an integrated desludging function which collects
oxides, scale and other particles which become detached from
the inner walls of the heating circuit. The lower part of the system
is equipped with a sludge valve which should be briey activated
once a year (see § "Maintenance and Repairs").
For underoor heating installations, we would advise you to t
a settling tank, which will complement the actions taken by the
Pilot.
HRC Pilot
PS
RV
BPV
Existing
boiler
HRC Heat Pump
HPRV
See § ‘‘Setting the 4 speeds on the circulator pump’’ in appendix
1895709.

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 15
3.2.5 - Heat Pump water inlet lter (supplied)
A 1’’ valve with a built-in 500μm lter must be tted to the water
inlet piping on the Heat Pump:
• Respect the ow direction of the lter (arrow on the
valve)
• Install the 1’’valve with lter on the inside of the
building and ensure it is thermally insulated
Clean the lter several times as soon as
the Heat Pump circulator pump has been
activated (take care to switch the circulator pump o
before cleaning).
• It is essential to t the 500μm particle lter
which is supplied with the Pilot in order to
prevent any clogging or dirt build-up in the heat
exchanger.
• Before making the hydraulic connection for the
Heat Pump the installation must be desludged
and rinsed.
For underoor heating installations, the
piping for the heating circuit must not be
under 1’’in diametre.
• Clean the lter at least once a year.
3.2.6 - Heating circuit
3.2.6.1 - Heating circuit ow rate
3.2.6.2 - Backow prevention device
3.2.6.4 - Insulating the piping
3.2.6.5 - Expansion vessel
3.2.6.6 - Frost protection and water treatment
3.2.6.3 - Degassing the heating circuit
• For heating circuits with radiators, fan coil units or underoor
heating:
The ow rate must be sucient to ensure that the dierence in
temperature between the leaving and return points is not over
15K in radiator or fan coil unit circuits or 7K in underoor heating
circuits.
For installations which have thermostatic valves, this test must
be carried out with all valves open.
The heating capacity from the heat radiating sources determines
the heating water ow rate and allows you to check that the
sections, lengths and layout of the hydraulic distribution
network are compatible with the Pilot circulator pump.
Adjust the speed (I, II or III) of the UPS 20-60 circulator pump
which is tted to the Pilot to the characteristics of the hydraulic
circuit using the curve chart below: ow rate Q (m3/h) / pressure
head H(mCE).
French law (articles 16.7 and 16.8 of the "Règlement Sanitaire
Départemental") stipulates that a type CB backow prevention
device must be tted. This device must be at dierent, non-
regulated pressure zones, in accordance with the NF P 43-011
standard. This is also an obligatory requirement in other countries
so it is important to check the current laws and standards in
the country of installation and ensure that your installation is
in compliance with them. The backow prevention device is
designed to prevent incoming heating water from going into the
drinking water circuit. It must be connected to mains drainage.
All necessary measures must be taken to ensure that the
installation can be continuously degassed. Automatic air valves
should be placed at each high point of the installation and
manual air valves should be tted on each radiator.
Insulants must comply with DTU 67.1 or the current regulations in
the country of installation.
All visible piping and accessories (circulator pump, expansion
vessel, valve, etc...) must be insulated.Remember to insulate the
distribution manifolds and the return and leaving ow pipes to
the underoor heating circuit and also the piping which connects
the Heat Pump to the Pilot.
An expansion vessel needs to be tted onto the heating circuit.
See Appendix 4 for help on sizing.
See appendices A3 et A5.
.
.
.
See § ‘‘Setting the 4 speeds on the circulator pump’’ in appendix
1895709.

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
16
3.3.1 - For radiator / fan coil unit circuits
3.3.2 - For underoor heating circuits
3.3.3 - For domestic hot water
3.3.4 - For swimming pools
3.3 - Installation advice for dierent
types of transmitters and dierent
uses
Thermostatic valves: these valves must primarily be used for
premises which receive high quantities of free calories from
sunlight. In an installation where only thermostatic valves are
used there must be a bypass function in place (e.g. a dierential
valve).
In an installation with thermostatic valves and a room
temperature sensor, the room or area where the room
temperature sensor is located MUST have manual air valves tted
on the radiators.
In order to ensure full satisfaction from your room thermostat is
is essential to follow the installation and assembly instructions
when setting it up.
It is MANDATORY to t an underoor heating
temperature limiter on the outgoing water
point of each circuit.
As the domestic hot water can reach
temperatures of over 60°C (notably to protect
against legionellosis), a thermostatic mixing valve
MUST be tted onto the DHW outgoing point to
avoid risk of scalding.
Using a water tank where the primary heat
exchanger is around 25kW (1.5m²) can lead to
Heat Pump malfunction because of on / o cycles
which are too long.
It is not necessary to drain the tank.
• Adjust setting 207 to a value which is equal to or below 50°C (see
"Regulator settings").
• Replace the electrical bridges between terminals 4 and 5 for
circuit 1 and between terminals1 and 2 for circuit 2 used in the
underoor heating for the temperature limiters (UTL).
These aquastats cut o the power supply to the underoor
heating circulator pump on circuits 1 (HPCP 1) and 2 (HPCP 2) in
case of abnormally high temperatures on the underoor heating
circuit.
1 - Position the temperature limiter (UTL) at the desired point
2 - Place the bulb on the heating water outgoing water point pipe
3 - Use the clip to hold the bulb in place
4 - Fix the insulant around the bulb
5 - Remove the pre-tted electrical bridges:
• between terminals 4 and 5 for circuit 1
• between terminals 1 and 2 for circuit 2
6 - Make the electrical connections for the underoor temperature limiter (UTL) on
terminals:
•4 and 5 for circuit 1
•1 and 2 for circuit 2
Place the safety aquastat on the pipe
at the outgoing water point
(example for circuit 1)
1
42
Domestic hot water can be produced by the Pilot. The hot water
tank is heated by a primary water circuit which is connected
to the Pilot (circuit 2)(Accessories : "2nd circuit at an identical
temperature"-Ref. 751003- and "DHW sensor" -Ref. 710029-).
It is important to equip the hot water tank with a
suitably powerful heat exchanger (minimum 40kW).
To ensure an eective coupling with the Heat Pump the surface of
the water tank’s primary heat exchanger must be at least 1.5m².
For a non-permanent pool please refer to the instructions
provided with the control kit for summer pools (Ref. 751006).
THE CONTROL KIT FOR SUMMER POOLS MUST NOT
BE USED FOR A PERMANENT POOL SUMMER +
WINTER.
The domestic water circuit must be installed in compliance with
regulations and best practices. It is particularly important to
observe the following instructions:
• A pressure relief valve must be tted onto the cold water inlet on
the tank
• Do not t a shut-o valve between the pressure relief valve and
the tank.
NB : the pressure relief valve may let out a small amount of water
when the DHW is being reheated: this is normal.
• In order to prevent this run-o if the pressure exceeds 4 bars:
- Fit a pressure reducer on the cold water inlet
- Fit a DHW expansion vessel between the pressure relief
valve and the tank.
• The number of elbows used and drops in pressure must be
minimised, the plumbing xtures used must be
adapted to the installation.
• In regions where high levels of limescale are present in the water
(TH > 15), we would advise you to t an anti-scale
device on the cold water inlet. The TH should be under
15.
• The concentration of chloride in domestic hot water should be
less than 60mg/L (quality level required for drinking
water for human consumption).

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 17
3.4 - Electrical control connections
3.4.1 - Connecting the Heat Pump control
3.4.1.1 - 2-core sheathed cable
The Heat Pump is pre-tted with a non-polarised 2-core sheathed cable (communication bus). This 10m cable is supplied with and pre-
connected to the Heat Pump. It must be connected to the Pilot.
If the connection needed is longer than10m, replace this cable with a 20m cable, which is available to order (Ref.751005).
• On the Pilot, cut the bus link to the right length: LOOPS ARE FORBIDDEN.
• On the Pilot, cleanly remove 10cm of the shielding to prevent any short circuits.
• Connect the two wires (stripped to 10 mm) to the Pilot.
• IMPORTANT: DO NOT connect the bus link shielding to the ground of the Pilot.
Diagram of connection to Pilot without
the connection cable braided shielding
on the Pilot being grounded.
Diagram of connection to the Heat
Pump with MANDATORY grounding of
the connection cable braided shielding (faston
terminal near 2-point connector).

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
18
Screw terminal blocks for connection to the Pilot electronics board
1.12-point terminal (the circuit board marked Ext. ; Pisc. ; Amb 1 ;
Amb 2 ; Del ; HP/HC)
Ext.(a) : Outdoor sensor (supplied, mandatory connection)
Pisc.(b) : Swimming pool aquastat or sensor. See § "Circuit 1
temperature control" to set the circuit 1 swimming pool
sensor (1)
Amb 1 : Circuit 1 room thermostat (potential-free dry contact, non
chrono-proportional, no IPD, etc...)
or room temperature sensor with display for circuit 1
to set the circuit 1 temperature control or to control the
swimming pool ow for circuit 1 (1)
Amb 2 : Circuit 2 room thermostat (potential-free dry contact, non
chrono-proportional, no IPD, etc...)
or circuit 2 DHW aquastat
See § "Circuit 2 temperature control" to set ambient
temperature or DHW temperature on
circuit 2
Del : Load shedding input, used to partially or completely stop
electrical back-up and the Heat Pump when the electricity
is needed for other household uses.
Remove the existing electrical bridge and connect the
load shedding device’s potential-free dry contact.
Set to parametre PAR.218 (2) (see § "Setting operating
parametres") which determines the level of authorisation
for the electrical back-up and Heat Pump to run at (the
factory setting is total load shedding for the Heat Pump
and electrical back-up).
HP / HC : Peak-time / o-peak operation, used to stop partial or full
operation of the electrical back-up and Heat Pump during
peak hours.
Remove the existing electircal bridge and connect the
potential-free dry contact PT/OP.
Adjust to setting PAR.217 (2) (see § "Setting operating parametres") which determines the level of authorisation for the electrical
back-up and Heat Pump to run at (the factory setting is only for load shedding on the electrical back-up).
The HP / HC and DEL contacts can also be used for load shedding on peak day pricing. By programming PAR.217 or PAR.218 on 7,
only the boiler will run when the dry contact is open.
(1) : For a permanent swimming pool (summer + winter).
If the pool is not permanent, please use the summer swimming pool control kit (Ref. 751006).
(2) : If both settings PAR.217 and PAR.218 are activated at the same time, the lowest authoristion level will be used on both inputs in case of
simultaneous load shedding.
2. 2-point terminal (marked Chaud on PCB.)
Chaud. : on / o output (dry contact) to connect to the room thermostat input on the existing boiler.
see § "Back-up section" for setting the boiler back-up.
The boiler normally commands its own circulator pump.
If this is not the case, relay the "chaud" dry contact so that one relay feeds two contacts:
- the rst contact (NO) is used to start the burner on the boiler (room thermostat input).
- the second change-over contact is used to supply the boiler’s heating circulator pump and to keep it running a few minutes (approx.5)
after the boiler has stopped.
3. 2-point terminal (marked BUS on PCB)
BUS : Link between HRC70 Heat Pump / HRC70 Pilot by 2-core sheathed cable (10m cable supplied, 20m cable available on order Ref. :
751005).
3.4.2 - Connecting the Pilot
• In order to avoid any problems which may occur when reading the temperature sensors, wire the control
independently of any power cables (raceways) and avoid distribution boxes.
•The conductors must be made from electrolytic copper (there must be no rust on the stripped connection strands).
•Telephone wire must not be used (too brittle for connections).
•The diametre of the control cables must be between 0.5 and 1mm².
For a standard installation with one radiator circuit, the outdoor temperature sensor (a) and if applicable the room thermostat (b).

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL- 19
3.4.3 - Temperature controls
3.4.3.1 - Installation precautions
3.4.3.2 - Room thermostat
3.4.3.3 - Outdoor temperature sensor
Where an installation includes thermostatic valves and a room
thermostat or room temperature sensor the area where the room
thermostat or room temperature sensor is installed MUST have
radiators equipped with manual valves.
The temperature control must be positioned on an interior wall of
the premises to be controlled by the appliance.
It must not be installed on an outdoor wall.
Do not position the temperature control near to a window, a
curtain or a door. Avoid installing it in an alcove, a cupboard or
behind wall coverings or hangings.
Do not place it above a heat source (e.g. radiator, replace) or on a
wall which has a chimney behind it.
Do not place it in strong sunlight or in strong lighting.
Fit the sensor at 1.5m from ground level and at least 50cm from
neighbouring walls. Insulate the end of the electric sheath
connecting it to the appliance to prevent any draughts from
aecting the reading.
Only connect one of the following:
- ROOMTEMPERATURE SENSOR with
DISPLAY (Ref. 751009)
-WIRELESS ROOM THERMOSTAT (Ref.
751010)
Any other type of chrono-proportional thermostat
could cause a malfunction and thus render the
warranty null and void.
Your country’s current rules and regulations
MUST be respected (Standard C15-100)
•The electric lines for general power supply to the
circuits must be made in compliance with your
country’s current rules and regulations (standard
C15-100).
• Standard C15-100 determines the cable section to
be used depending on acceptable currents.
• Standard C15-100 determines the cable section to
be used depending on the following factors:
- Nature of the conductor:
. type of insulant, number of strands, etc...
- Installation mode:
. inuence of conductor and cable groups
. ambient temperature
. length of cables, etc...
• During transport electrical cables may
accidentally loosen
•To prevent any risk of abnormal overheating check
that the faston terminal connections are secure and
that the screws are properly tightened.
See § "Parts - electrical boxes"
It is mandatory to t an outdoor temperature sensor.
Position the sensor on the coldest outside wall of the building (in
general this is the north-facing wall). It should not be exposed to
morning sunlight.
It is preferable to position the outdoor sensor in the middle of the
wall or heating zone at a minimum of 2.5m above the ground.
Avoid placing the sensor:
• above windows, doors, air vents or any other heat sources
• Under balconies or gutters. In order to avoid errors in readings
due to air circulation, insulate the end of the electric sheath where
it connects to the sensor. Do not paint the outdoor sensor.
3.5 - Connecting to power supply
Make sure that the power supply is sucient to supply both the
Heat Pump and if necessary the electrical back-up, taking into
account any other domestic usage of the electricity.
Power supply connection for each appliance must be done by a
qualied professional with mains power switched o.
Each appliance is pre-wired. However, it is necessary to connect
the following elements to the relevant terminals:
• Electricity supply to the power circuit of each appliance,
separately: the Heat Pump and the Pilot.
• The sensors, thermostat and load shedding device on the Pilot.
• The sheathed connection cable (2 core) between the Heat Pump
and the Pilot (10m cable supplied).
Under no circumstances will the manufacturer be held
responsible for any consequences which may arise due to
incorrect choice or installation of power cable sections.
Terminal strip
The terminal strips are spring-loaded cage clamps. For handling,
use one of the following:
- for 2.5mm² control terminals or 4mm - 6mm
power terminals (tetra) use a 3.5 x 0.5 at-head
screwdriver
- For the 10mm² mains power terminals,
(single phase), use a 5.5 x 0.8mm at-head
screwdriver
1 : Introduce the screwdriver into the window just
above or below the identifcation number
2 : Insert the wire into the open cage clamp
3 : Remove the screwdriver.
N.B: The wires must be stripped to the following
lengths:
- between 10 and 12 mm for 2.5mm control terminals
- between 18 and 20mm for the mains power terminals
- between 11 and 13mm for the intermediary power
terminals

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
20
3.5.1 - Recommendations for connecting the
system to the power supply
3.5.2 - Connecting the Pilot to the power
supply
N.B: See electrical diagram in the appendix.
Check:
• The input current
• The number and thickness of power cables
• Fuse or circuit breaker ratings
The power supply must come from an electrical protection
and sectioning device which complies with all current rules
and regulations. This CE-stamped appliance complies with the
essential requirements of the following directives:
- Low voltage n°2006/95/CE
- EMC n° 2004/108/CE
Check the the installation is equipped with a correctly sized and
connected ground cable.
Check that the voltage and frequency of the general power
supply t requirements. The amount of variation in voltage
permitted is:
230 V -10% à +6% 50Hz for single phase models + ground cable
400 V -10% à +6% 50Hz for three-phase models + neutral + earth
cable.
The Pilot must be protected beforehand by an all-pole circuit
breaker (minimal distance to separate contacts = 3mm: EN 60
335-1) using either fuses or a thermal magnetic circuit breaker
calibrated to the right power for the Pilot.
Type of back-up
Without
back-up
or boiler
back-up
Power supply voltage 230 V mono 230 V mono 400V tri
Current absorbed 2 A 30 A 10 A
Fuse calibration for mains
switch (1) 32 A 32 A 12 A
Power supply by phase(2) 2.5 mm² min.
to 4 mm² max.
Number of conductors (2) 4x2.5 mm² + T(*) min.
to 4x4 mm² + T(*) max.
(2) The figures given here are indicative. They should be checked, and if necessary
adjusted, depending on the installation conditions and current standards.
(*) The width of the ground cable should be equal to the width of the largest cable
.
6 kW electrical back-up
Pilot
6 mm² min.
to 10 mm² max.
2x6 mm² + T(*) min.
to 2x10 mm² + T(*) max.
(1) or general bipolar or tetrapolar circuit breaker
To access the terminals, remove the front faceplate of the Pilot
and open the control box by removing the two screws ( 1).
1
1
The HRC70 Pilot is set for 400Vthree-phase
use.
For 230V single phase use, you will need to t a
bridge (supplied in a small package) between the
three phase terminals. See diagram below.
Make sure the bridge is properly pushed
into place. See below:
PH-N : Phase/Neutral 230V single phase - 50Hz power supply
CPAC : Heat Pump circulator pump, pre-connected
Cchauf 1 : Circulator pump for heating circuit1
ou Pisc or primary pump for swimming pool circuit
Cchauf2 : Circulator pump for heating circuit 2
ou ECS Primary circulator pump for domestic water circuit
LTP1/LTP2 : Temperature-limiting safety aquastat (65°C) with manual reset. It must be
placed at the start of the underoor heating circuit (not supplied).
3.5.2.1 - Pilot: 230V single phase connection
Swimming pool option terminal
Main power
terminal
3 command terminals
on the
electronic board:
- 12 point (HP/HC; DEL;
Amb2;
Amb1; Pisc; Ext)
- 2 point (shielded
connection)
- 2 point (Chaud)
L1, L2 and L3 markings, to be
replaced by PH, PH and PH
Bridge to be tted for 230V
single phase use
3-wire section
to be dened.
See table § 3.3.2
Fuse or thermal-magnetic
circuit breaker
230V MONO 50Hz
POWER SUPPLY
INCORRECT CORRECT