auer PRIMO pilot Technical document

Made
in France
Ref. notice : 1898020
N° édition : 22.28
Technical installation manual PRIMO pilot
for heat pump
Ref. 753010
PRIMO pilot
Pilot for HRC70 & HTi70 heat pumps
The information contained in this document is non-contractual. Auer reserves the right to modify the technical specifications or characteristics of any of their appliances without prior notice.
*
* Concerns the HTI70 6 and 8 single-phase models

- INSTALLATION PRIMO PILOT MANUAL-
2
TABLE OF CONTENTS
1SAFETY ............................................................. 3
2 PLEASE READ IMMEDIATELY......................... 5
2.1 - Conservation of documents ............................................................5
2.2 - Symbols used........................................................................................5
2.3 - Abreviations and acronyms .............................................................5
2.4- Delivery terms and conditions.........................................................5
2.5 - Storage and transport........................................................................5
2.6 - Unpacking..............................................................................................5
2.7 - Rating plate............................................................................................5
2.8 - End of life of the appliance...............................................................5
3  INTRODUCTION ............................................. 6
3.1 - General information ...........................................................................6
3.2 - Packaging...............................................................................................6
3.3 - Accessories (included) .......................................................................6
3.4 - Accessories avalable as optional extras.......................................6
3.4.1 - Installation ..................................................................................................................6
3.4.2 - Control.......................................................................................................................... 6
3.5 - Operating principles...........................................................................7
4  INSTALLATION................................................ 8
4.1 - Placement choice.................................................................................8
4.1.1 - Appropriate placement choice............................................................................8
4.1.2 - Integration .................................................................................................................. 8
4.2 - Hydraulic installation..........................................................................8
4.2.1 - Recommandations................................................................................................... 8
4.2.1.1 - Backow prevention device................................................................. 8
4.2.1.2 - Cross sections, purging of the heating circuits............................. 8
4.2.1.3 - Desludging tank.......................................................................................8
4.2.1.4 - Preparing the hydraulic circuit (rinsing) .......................................... 8
4.2.1.5 - Expansion vessel ......................................................................................8
4.2.1.6 - Frost Protection ........................................................................................ 9
4.2.1.7 - Underoor heating.................................................................................. 9
4.2.1.8 - Thermostatic valves.................................................................................9
4.2.1.9 - Treatment of the water in the heating circuit................................ 9
4.2.1.9.1 - Filling water............................................................................9
4.2.1.9.2 - Treatment of the heating circuit..................................... 9
4.2.1.9.3 - Purging the installation...................................................10
4.2.1.9.4 - Connecting the pressure relief valve..........................10
4.2.2 - Hydraulic connections..........................................................................................11
4.2.2.1 - Decoupling kit.........................................................................................12
4.2.2.2 - Heating circuit + DHW circuit connection....................................12
4.3 - Electrical connections......................................................................13
4.4 - Connection to the Heat pump and to
the accessories for control..............................................................13
4.4.1 - Control connection towards the Heat pump...............................................14
4.4.2 - Ambient temperature control............................................................................14
4.4.3 - Exterior sensor.........................................................................................................14
4.4.4 - Domestic water sensor.........................................................................................14
4.4.5 - Underoor safety device of the 65°C safety aquastat (OPT)
with manual reset (OPT) .....................................................................................14
5  SETUP........................................................... 15
5.1 - Beforeset-up............................................................................................................... 15
5.2 - Check watertightness.......................................................................15
5.3 - Starting set-up ....................................................................................15
5.4 - Step 1: Circuit choice........................................................................15
5.5 - Step 2: Filling .......................................................................................15
5.6 - Step 3: Purging the installation ....................................................16
5.7 - Step 4 : Choosing the back-up......................................................16
5.8 - Step 5: Finishing set-up ...................................................................16
5.9 - 1st use....................................................................................................16
6  SETTINGS AND FUNCTIONS .......................17
6.1 - Control panel.......................................................................................17
6.1.1 - Keypad........................................................................................................................17
6.1.2 - Display........................................................................................................................17
6.2 - Menus ....................................................................................................18
6.3 - Actions to be activated using a combination of buttons....18
6.4 - List of parameters which can be set ...........................................19
6.5 - Description of functionalities........................................................21
6.5.1 - functions related to heating...............................................................................21
6.5.1.1 - AUTO temperature (heat curve) .......................................................21
6.5.1.2 - Lowering of the temperature ............................................................21
6.5.1.3 - Auto-adaptability...................................................................................21
6.5.1.4 - Ambient temperature reactivity.......................................................21
6.5.2 - Programming and timeout functions.............................................................21
6.5.2.1 - Anticipation of return from holiday................................................21
6.5.2.2 - Automatic summer/winter changeover................................................................22
6.5.3 - Ambient temperature and heating circulation control functions ........22
6.5.3.1 - Ambient temperature sensor hysteresis........................................22
6.5.3.2 - Circulator pump speed........................................................................22
6.5.3.3 - Heating circulator control...................................................................22
6.5.3.4 - Anti-cold radiators.................................................................................22
6.5.4 - Functions related to the production of domestic hot water ..................22
6.5.4.1 - Domestic priority sharing ...................................................................22
6.5.4.2 - Anti-legionellosis protection.............................................................22
6.6 - Heat pump circulator speed..........................................................22
7  MAINTENANCE AND TROUBLESHOOTING22
7.1 - Maintenance........................................................................................23
7.2- Diagnostics............................................................................................23
7.2.1 - Loading the operating history...........................................................................23
7.2.2 - Consulting the current operating state of the system..............................23
7.2.3 - Water sensors...........................................................................................................24
7.2.4 - Exterior sensor.........................................................................................................24
7.2.5 - Consulting the counters.......................................................................................24
7.2.6 - Manual forcing of components.........................................................................24
7.2.6.1 - Circulator pump .....................................................................................24
7.2.6.2 - 3-way valve..............................................................................................24
7.2.6.3 - Back-up......................................................................................................24
7.2.7 - Errors indicated by the pilot...............................................................................25

- INSTALLATION PRIMO PILOT MANUAL- 3
1-SAFETY
Danger resulting from improper qualications
• Any work carried out by an unqualied person
can result in damage to the installation or in
physical injury.
• Do not perform maintenance on this appliance
unless you are a qualied professional.
•If the appliance is malfunctioning or not
working, cut the electricity supply to the electrical
components and seek advice from a qualied
professional.
Danger resulting from improper use
This appliance should not be used by anyone
(including children under the age of 8 years
old) with reduced physical, sensory or mental
capabilities, or by anyone with insufficient
experience or knowledge of the appliance; unless
they are being supervised by someone who is
responsible for their safety and in possession of
the operating instructions of the appliance, or if
they have been instructed in the proper use and
in the risks of operating the appliance.
Children must not play with the appliance.
Cleaning and maintenance of the appliance
must not be undertaken by children without
supervision.
Applicable areas of use
The appliance is intended for use an appliance
for the production of domestic hot water : it must
be connected to a heating installation, and while
complying with the instructions, connected to
the drinking water network.
The intended use of the appliance includes the
following points:
•following the instructions for operating,
installing and maintaining this appliance and
all of its components.
•ensuring the compliance of the appliance to all
inspection and maintenance conditions which
are listed in this manual.
Danger of death by electrocution
• Touching live electrical wires can cause severe
bodily injury, and lead to death by electrocution.
All installation and maintenance work must be
carried out with the appliance switched o and by
a qualied professional. Before carrying out any
work on the appliance:
-Cut-o the electricity supply.
- Ensure that there is no possibility of the power
supply becoming active again.
-Wait at least 5 minutes for the capacitors to
lose their charge.
8  SPARE PARTS ................................................ 29
8.1 - PRIMO Pilot ..........................................................................................29
8.2 - Hydraulic block...................................................................................29
9  WARRANTY ................................................... 30
9.1 - Warranty coverage ............................................................................30
9.2 - Limitations of warranty....................................................................30
9.2.1 - General information ..............................................................................................30
9.2.2 - Cases (not limited to) for exclusion from warranty ....................................30
9.2.2.1 - Usages........................................................................................................30
9.2.2.2 - Handling....................................................................................................30
9.2.2.3 - Installation site........................................................................................30
9.2.2.4 - Electrical connections ..........................................................................30
9.2.2.5 - Hydraulic connections .........................................................................30
9.2.2.6 - Accessories...............................................................................................30
9.2.2.7 - Maintenance...........................................................................................30
APPENDIX ..........................................................31
A1 - Technical specications....................................................................31
A1.1 - General characteristics..........................................................................................31
A1.2 - Dimensions................................................................................................................31
A1.3 - UE declaration..........................................................................................................31
A2 - Hydraulic schematic diagrams ......................................................32
A2.1 - Hydraulic connection between the pilot and the heat pump................32
A2.2 - Minimum ow rate to respect depending on the heat pump model .32
A3 - Wiring diagram....................................................................................33
A4 - Recap of functions .............................................................................34
A4.1 - Control panel............................................................................................................34
A4.1.1 - Keypad........................................................................................................34
A4.1.2 - Display........................................................................................................34
A4.2 - Menus..........................................................................................................................35
A4.3 - Actions to be activated using a combination of buttons.........................35

- INSTALLATION PRIMO PILOT MANUAL-
4
•Do not get water on any of the control or
electrical components. Always disconnect the
appliance from the electricity supply before
carrying out work on any of the electrical
components.
Danger of death if the pressure relief valves
are missing or defective
A defective pressure relief valve may prove
dangerous and could lead to burns or other
injuries by, for example, the pipes bursting.
The information presented in this document does
not contain all of the schematic diagrams needed
for a professional installation of the pressure relief
valves.
• Install the necessary pressure relief valves on
the circuit.
• Inform the user concerning the function and
the placement of the pressure relief valves.
• Respect all applicable national and international
regulations, standards and decrees.
Risk of corrosion
The appliance should be installed in an area
where it is not exposed to humidity and without
any risk of being splashed by water.
Risk of damage related to frost
The pilot MUST be installed in an area where it is
not subject to frost or freezing.
Risk of material damage
The pilot can only work when lled with water.
Never switch on the appliance if it is not
completely lled with water and purged of air.
Rules and regulations (decrees, standards,
laws)
Once the appliance is installed and switched
on, all decrees, directives, technical rules, safety
measures and standards, must be respected in
their current version in eect.
The electrical supply must conform to all
applicable regulations in the country of
installation, as well as the NFC 15-100 standard.
• Amethodof disconnectionensuring acomplete
cut-o must be installed in the xed piping to
conform to installation regulations (do not use
a movable outlet).
•Protect the appliance with a 2-pole circuit
breaker with a minimum contact opening of
3mm and must be grounded.
If the electrical supply cable is damaged, it must
be replaced by the manufacturer, their customer
service technicians, or by a qualied professional
to prevent any risk of injury or danger.
• The devices for electrical cut-o must remain
accessible.
•Water and/or R290 ammable gas can ow
through the discharge pipe of the pressure
limiting device (safety valve). This pipe must
be kept open outside the building. The end
of this pipe must be placed downwards
(see § Connecting the pressure relief valve).
• The pressure relief valve is mounted on the
hydraulic block. Ensure that the drainage is
properly oriented to prevent water from leaking
onto the electrical components.
Maintenance - Troubleshooting
Maintenance and cleaning of the pilot must be
carried out at least once a year by a qualied
professional.
This appliance is in compliance with the
international standards concerning electrical
safety CEI 60335-1, CEI 60335-2-102. The
CE branding on the appliance attests to its
compliance with the following directives:
- Low voltage (LV): 2014/35/UE
- Electromagnetic compatibility(CEM):
2014/125/CE
- Ecodesign concerning products related to
energy: 2013-813-UE

- INSTALLATION PRIMO PILOT MANUAL- 5
2 -PLEASE READ
IMMEDIATELY
This technical installation manual forms part of the appliance which
it refers to. In order for the warranty to be valid, the instructions must
be read prior to using the appliance.
The safety advice and instructions provided in this manual must be
strictly respected.
Our society is not liable for any damages caused from not following
the instructions provided, or improper handling, installation or use.
This technical installation manual can be modied without prior
notice.
This manual must be safeguarded and passed on to successive users
for future reference.
It will be considered as evidence in case of litigation.
2.1 - Conservation of documents
DHW.......Domestic Hot Water
DCW .......Domestic Cold Water
T°..............Temperature
HP............Heat pump
2.3 - Abreviations and acronyms
2.4- Delivery terms and conditions
In general, the material is transported at the recipient’s own risk.
It is important to ensure that all components have been received and
that no damage has been sustained during transport upon receipt
of the appliance, and before beginning the installation procedures.
2.2 - Symbols used
Indicates warnings and important recommendations.
Contains regulated substances, do not throw in the
garbage. If disposing, please respect all regulations
pertaining to the recovery of electric and electronic
equipment.
Consult the installation manual before any intervention
on the product, before handling, installation, use , and
maintenance.
Maximum working pressure.
PSmax
Heat power output produced.
Indicates the maximum water temperature in operation.
Admissible storage and transport temperatures are from -20°C to
+60°C.
The PRIMO Pilot must be stored and transported on its pallet and
in its original packaging and empty of water.
2.5 - Storage and transport
2.8 - End of life of the appliance
Our products are designed and manufactured using
components made of recyclable materials.
The appliance must never, in any case, be disposed of
with household waste, or in a dump.
The dismantling and recycling of the appliances must be
taken charge of by a qualied professional and in compliance with
all local and national standards in eect.
2.7 - Rating plate
2.6 - Unpacking
On reception of the PRIMO Pilot,
check the state of the cardboard
packaging as well as the general
state of the product, and remove
it from its cardboard box.
Opening the front panel of the
PRIMO Pilot allows you to access
the box of included accessories
as well as the electrical terminal
for connection to the electrical
supply and to the different
control components.
1- To remove the front panel,
unscrew the two TH7 screws
which are located on both
sides underneath the PRIMO
Pilot.
2- Pull the base of the front panel
forwards, and lift the panel to unhook the pegs located at the top
of the PRIMO Pilot.
To replace the front panel, rehook the pegs in place at the top of
the PRIMO Pilot, replace the panel back into position and screw
the two TH7 screws back in.

- INSTALLATION PRIMO PILOT MANUAL-
6
3 - INTRODUCTION
3.1 - General information
3.2 - Packaging
Weight
(kg)
Number of
packages
W
(mm)
H
(mm)
D
(mm)
Primo
pilot 33 1 440 810 380
3.4 - Accessories avalable as optional
extras
• PEJ 120, 200 et PEJ 270
DHW tank for the production of domestic hot water
120 L : Ref. 341109
200 L : Ref. 341111
270 L : Ref. 341106
3.4.1 - Installation
• 2-core sheathed connecting cable (lg20m)
To connect the heat pump and the pilot, to be used instead of
the standard 10m cable.
(Ref.753102)
• Ambient temperature thermostat radio non-
chronoproportional -(THRnc)-
Wireless - on/o type, programmable thermostat, transmitting
through radio-frequency. Necessary when a wired connection
between the Pilot and the ambient temperature thermostat is
not possible
(
Ref.770001)
• DHW sensor
For the production of domestic hot water
(
Ref. 710029)
• Overheating protection thermostat for underoor
(Réf. 710111)
• Ambient temperature thermostat (TA)
2 wires - allows to control the temperature in the
heating zone
(
Ref. 710043)
• Ambient temperature sensor (SA)
2 wires - allows to control the temperature of
the heating zone on a variety of comfort levels
(programmable from the pilot).
(Ref. 751009)
3.4.2 - Control
The PRIMO Pilot is a hydraulic pilot which ensures the control
of a heating circuit and -depending on the options selected- the
production of domestic hot water for the household.
The PRIMO Pilot is meant to be connected to an HRC70 or HTI70
range heat pump).
The PRIMO Pilot is delivered ready to use in its factory set
conguration (see § «Set-up»).
This configuration allows a simpified start-up, with factory set
parameters and without access to certain settings.
However, set-up is strongly recommended as it allows for use to be
personalised for the household. This conguration and its settings
can be modied in the expert menu.
Équipements Primo
Electrical resistance of the back-up 3 kW
Expansion vessel 8 litres
Multifunctional tank ensuring the uncoupling
of the hydraulic circuits 18 litres
Electronic control taking charge of the optimal
management of the installation 
Essential components for the protection of
the hydraulic circuits (pressure relief valves,
automatic purgers, pressure sensors)

Scheduled programming of the comfort mode
for the 7 days of the week using programmable
ranges

3.3 - Accessories (included)
Each PRIMO Pilot is delivered with (non-mounted):
• Hydraulic Decoupling Kit
Decoupling HP circuit/ heating circuit
(Ref. 753103)
• Exterior sensor
Allows to adapt the heating temperature to
the outside climate.
• USB memory stick
Allows you to take the operating
history
Ensure to keep the original delivered USB  ash drive.
It will facilitate your exchanges with your technical contacts

- INSTALLATION PRIMO PILOT MANUAL- 7
1. 18L buer tank
2. Heating element
3. Power terminal
4. Circulator pump
5. Electronic circuit board
6. Expansion vessel
7. Heat pump
8. Decoupling pump (optional)
9. By-pass (optional)
10.Heating circuit (radiator or
underoor heating)
11.Domestic hot water circuit
12.Decoupling kit
3.5 - Operating principles

- INSTALLATION PRIMO PILOT MANUAL-
8
The PRIMO Pilot must be placed in an area which is free from frost
and adverse weather conditions.
It must be placed as close to the heat pump as possible without
exceeding the maximum distance.
The maximum distance depends on the diameter of piping and the
number of elbows used (see «Hydraulic connection» tables).
The 2-core sheathed cable which connects the PRIMO Pilot and
the heat pump measures 10m. There is a 20m length available as
an optional extra (Ref.751005).
4.2.1 - Recommandations
French law (articles 16.7 and 16.8 of the «Reglement Sanitaire
Departementale») stipulates that a type CB backow prevention
device must be installed. 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,
which makes it important to verify the current laws and regulations
in eect in the country of installation to ensure that your installation
is in compliance. The backow prevention device is designed to
prevent incoming heating water from entering the drinking water
circuit. It must be connected to the mains drainage system.
4.2.1.1 - Backow prevention device
4.2 - Hydraulic installation
Consult the hydraulic schematic diagrams in the appendix.
4 - INSTALLATION
4.1 - Placement choice
The Pilot must be installed on a level
and stable base which is distanced from
appliances used for cooking and other
heat sources.
4.1.1 - Appropriate placement choice
4.1.2 - Integration
AB
Primo
pilot 400 791
Plan for a desludging tank with a sucient volume at a low point
on the inlet of the heating circuit. This tank must be equipped
with a drain so it can collect the oxides, particles, and calamines
which detach from the inner walls of the heating circuit while it is
in operation.
4.2.1.3 - Desludging tank
Before placing the PRIMO Pilot and heat pump, it is necessary to
rinse the installation with an appropriate product. This allows to
eliminate all traces of soldering waste, joint ller, grease, sludge,
metallic particles, etc... in the radiators, underoor heating, etc...
4.2.1.4 - Preparing the hydraulic circuit
(rinsing)
A sucient ow rate should be ensured so that the dierence in
temperature between the outlet and inlet points does not exceed
6°C. In an installation equipped with thermostatic mixing valves, this
inspection must be done with all taps/valves open.
The output actually needed determines the water ow rate of
the heating circuit and allows to calculate the dimensions of the
distribution network.
All necessary measures must be taken to ensure that the installation
can be continuously purged. Automatic air purging valves should be
placed at each high point of the installation, and manual air purging
valves should be installed on each radiator.
4.2.1.2 - Cross sections, purging of the
heating circuits
The installation must be equipped with an expansion vessel with
a su cient capacity (which depends on the static height of the
installation, the blowing-up pressure of the expansion vessel and
the volume of the installation).
4.2.1.5 - Expansion vessel
Pressure head of the
installation (m) 2.5 5 7.5 10 12.5 15
Pre-inated pressure
(bar)(1) 0.25 0.50 0.75 1.00 1.25 1.50
Maximum volume of
the installation covered
by the 8L expansion
vessel*(2)
152 138 125 111 97 83
Expansion factor*(3) 0.05 0.058 0.064 0.072 0.083 0.096
*The values given are for application to radiators (water at 80o C)
For application to underoor heating:
-Multiply values(2) by 2
-Divide values(3) by 2
(1) : Deate and check pressure in the expansion vessel if necessary.
(2) : As a guideline, take into account:
•11 litres per kW heating capacity for steel radiators
• 13 liters per kW heating capacity for cast-iron radiators
• 17 liters per kW heating capacity for underoor heating
(3)For installation with a larger volume of water, multiply the volume by the
expansion factor corresponding to the pre-inated pressure to obtain
the minimum required capacity of the expansion vessel. When an 8L
expansion tank is included in the unit, add an additional expansion
tank, if necessary.

- INSTALLATION PRIMO PILOT MANUAL- 9
Frost protection is necessary if the PRIMO Pilot is switched o during
the winter months (ex: secondary residence, etc...).
4.2.1.6 - Frost Protection
If the appliance is connected to an
electricity supply, the heating circuit is
protected from freezing. It is IMPERATIVE
to drain the domestic hot water circuit however.
If the pilot is not being supplied with electricity
(electrical cut-o for example), or it is defective
and there is a risk of freezing, it is IMPERATIVE to
completely drain the appliance (heating and hot
water).
4.2.1.9 - Treatment of the water in the
heating circuit
It is MANDATORY to read the additional
document concerning the quality of
waterusedforllingtheinstallation.This
document is included with this manual as well
as in the packet with the warranty information.
This document also contains information which
is PERTINENT to the WARRANTY of the material.
We recommend the use of products in the SENTINEL range by GE
BETZ for preventative and curative treatment of the heating circuit.
• For new installations : (less than 6 months old):
- Clean the installation with a universal cleaner to eliminate
the debris from the installation (copper, bres, soldering
uxes) Example : SENTINEL X300
- Throughly rinse the installation until the water runs clear,
with no traces of impurities left.
- Protect the installation against corrosion with a corrosion
inhibitor, example: SENTINEL X100. Or against corrosion
and freezing with an inhibitor with an anti-freeze additive.
Example :SENTINEL X500.
• For existing installations:
- Desludge the installation with a desludging product
to eliminate any sludge from the installation. Example:
SENTINEL X400.
- Throughly rinse the installation until the water runs clear,
with no traces of impurities left.
- Protect the installation against corrosion with a corrosion
inhibitor, example: SENTINEL X100. Or against corrosion
and freezing with an inhibitor with an anti-freeze additive.
Example : SENTINEL X500.
It is mandatory to install a 65°C safety aquastat (OPT) with manual
reset (OPT) on the underoor heating outlet.
CAUTION WHEN THE INSTALLATION INCLUDES A SANITARY
TANK !
4.2.1.7 - Underoor heating
It is IMPERATIVE to refer to the
installation instructions for the initial
installation of the ambient temperature
thermostat to ensure satisfactory operation.
In an installation with both
thermostatic valves and a room
temperature thermostat, the radiator(s)
in the room in which the thermostat is
located MUST be equipped with a manual
valve(s).
Thermostatic valves: these valves should prioritise rooms with higher
levels of heat gain.
4.2.1.8 - Thermostatic valves
Central heating installations must be
cleaned in order to eliminate debris (copper,
lings, soldering waste) related to the set-up of the
installation or from chemical reactions between the
metals.
Futhermore, it is important to protect the
central heating installations from risks of
corrosion, limescale, and microbiological
development through use of a corrosion inhibitor
which is suitable for all kinds of installations (steel or
cast-iron radiators, PEX underoor heating).
PRODUCTS USED FOR HEATING WATER
TREATMENT MUST BE APPROVED BY THE
LOCAL OR NATIONAL PUBLIC HYGIENE
AND HEALTH AUTHORITY.
4.2.1.9.1 - Filling water
The materials used for producing a heating circuit are of dierent
natures. Instances of corrosion may occur through galvanic coupling
in both new and existing installations.
The lling of the heating circuit must only be done with untreated water
(no water softener) from the drinking water network. Water from any other
source )rain-water, well-water, etc...), must be analysed and MUST have
the following properties:
8,5 UPH (acidity) U9,5
Chlorides U60 mg / litre
Conductivity < 1000 μS / cm
5 UTH (hardness in French °) U15
4.2.1.9.2 - Treatment of the heating circuit
1. The DHW setpoint setting must be less than 55 ° C.
2. Place the safety aquastat as close as possible to the
common outlet of all the underoor heating loops (that
is to say just upstream of the oor outlet manifold) so as
to move it away from the Pilot’s oor outlet outlet and in
order to avoid its triggering after a load of the domestic
hot water tank.

- INSTALLATION PRIMO PILOT MANUAL-
10
Treatment products from other manufacturers can be used if they
guarantee that the product is appropriate for all the materials used
in the appliance and oers ecient resistance to corrosion. To nd
this information refer to their user manual.
4.2.1.9.3 - Purging the installation
The oxygen present in the air is extremely corrosive. All necessary measures must be taken to ensure that the installation can be continuously
purged. Automatic air purging valves should be placed at each high point of the installation, and manual air purging valves should be installed
on each radiator.
Any deterioration of the appliance due to inappropriate lling water, and/or corrosion in the absence
of the use of treatment products, and/or improper degassing of the installation, will render the
warranty null and void.
RENDERINGTHEWARRANTY NULL AND VOID
4.2.1.9.4 - Connecting the pressure relief valve
The Heat Pump and the PRIMO Pilot are both equipped with pressure-relief valves. The PRIMO Pilot’s pressure-relief valve is set at 3 bars.
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 in the Heat Pump must, consequently, be lower than 2.5 bars.
Example : If the Heat Pump is positioned 5m below the PRIMO Pilot, the pressure reading on the PRIMO Pilot would be 0.5 bars less than the real
pressure of the water in the Heat Pump. In this case, the maximum service pressure for the PRIMO 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).
For safety reasons (potential presence of ammable R290 gas), drainage of the Pilot’s pressure-relief valve must MANDATORILY be done
outside the building. The outlet of the drainage pipe (4m length provided with the pilot) must be placed downwards in order to avoid any
introduction of water inside, any risk of obstruction due to frozen water or any other pollution (see drawing).
If the provided drainage pipe is too short, it’s mandatory to use a well-adapted length (can by supplied on demand). It will have to be installed
as well as there will be no pinch on it, it will then ensure the drainage of the overpressure from the 3 bar safety valve outside the building.
Corrosion inhibitor :
- protects against the formation of limescale
- prevents «pinhole» type corrosion
- prevents, in new installations, the formation of sludge
and the proliferation of bacteria
(in low temperature networks: algae)
- prevents the formation of hydrogen
- eliminates the sound of the generators
ThePilot’spressure-relief valvedrainagepipe
must be properly secured until the outside of
the building without any pinching zone.
WARNING
Failure to comply with this requirement
concerning the evacuation of overpressure outside
the building releases the heat pump manufacturer
from any liability in case of incident.

- INSTALLATION PRIMO PILOT MANUAL- 11
4.2.2 - Hydraulic connections
Description Hydraulic
connections
1 Outlet towards DHW & Heating 3/4’’
2 Inlet from HP 3/4’’
3 Outlet towards HP 3/4’’
4 Inlet from DHW circuit 3/4’’
5 Inlet from Heating circuit 3/4’’
6 Draining valve -

- INSTALLATION PRIMO PILOT MANUAL-
12
The heating ow and the domestic hot water ow must be connected
to the “1” transmitting outputs. Provide a connecting tee between
the two circuits.
If the decoupling kit is installed with the pilot, the tee must be placed
after the kit.
4.2.2.2 - Heating circuit + DHW circuit
connection
This kit is designed to ensure sucient ow on the heat pump. It is
compulsory during renovation, as well as in all cases where the ow rate
on the heat pump is restricted by the conguration of the distribution
circuit.
Hydraulic connection of the decoupling kit :
1)The decoupling kit must be connected between the outlet towards
heating circuit (and DHW circuit if connected) and the return of
the heating circuit. Connect the two pipes with a 3/4’’nut directly
to the corresponding threaded connections of the pilot : the pipe
with a nut on both sides must be connected to the return of the
heating circuit. First, do not tighten the nuts.
Electrical connection of the decoupling kit :
Install only the decoupling kit (Ref. 753103).
Seals provided in the decoupling kit must be
correctly placed to ensure the tightness of
the installation.
Power supply must be disconnected before
electrical connection of the decoupling kit.
The power cable and the PWM cable must
not be placed in the same grommet.
4.2.2.1 - Decoupling kit
2) Install the by-pass pipe ensuring the link between the two pipes
described in 1).
3) Tighten all the nuts.
4) Connect the decoupling circulator pump to the return of the
heating circuit. The arrow situated on the cast iron body of the
circulator pump must be upwards.
5) Connect the heating inlet and outlet pipes to the 1’’ threaded
connection and to the circulator pump.
6) Connect the power cable and the PWM cable to the connectors
of the circulator pump.
7) Pass the wires through the grommet of the PRIMO Pilot.

- INSTALLATION PRIMO PILOT MANUAL- 13
4.3 - Electrical connections
Plan for a circuit breaker dedicated to the power supply of the PRIMO
Pilot on the electrical panel. It must be able to completely cut-o
the electrical supply from the network (all-pole) to eliminate any
danger when carrying out maintenance on the appliance.
How to proceed:
• Check that the «ground» cable is connected properly to the
grounding peg or grounding network of the building.
• Connect the PRIMO Pilot’s electrical cable to the dedicated
outlet, equipped with a circuit breaker.
• Leave the PRIMO Pilot switched o until set-up.
The proper voltage is: 230 V (+10% / -15%).
Each appliance is delivered from the factory completely pre-wired.
However, it is necessary to connect the following elements to the
relevant terminals:
• The general electricity supply.
• The dierent sensors or thermostats on the PRIMO Pilot.
• The 2-core sheathed cable connecting the PRIMO Pilot and
the Heat pump (10m length supplied).
• The chosen back-up on the terminal and the contactor.
Under no circumstances will the manufacturer be held liable for
any problems which may arise due to improper installation and/or
choice of power supply cable.
The rules and regulations in the country of
installation MUST be respected (standard
C15-100).
• The electrical 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 based on acceptable currents.
• Standard C15-100 determines the cable section to
be used based on the following elements:
- Nature of the conductor :
. type of insulation, number of strands, etc...
- Installation mode :
. inuence of conductor and cable groups
. ambient temperature
. tightly or non-tightly installed
. length of cables, etc...
4.4 - Connection to the Heat pump and
to the accessories for control
Optional for PRIMO Pilot :
Connect the decoupling pump according to the PRIMO
pilot wiring diagram in the appendix.
Amb : Ambient temperature sensor or thermostat
(dry contact)
Bal : Tank sensor
Ext : Exterior sensor
ModBus : Connection to the heat pump
d
e
b
X2
c

- INSTALLATION PRIMO PILOT MANUAL-
14
EXCLUSIVELY connect the water sensor
(Ref. 710029).
If DHW is produced by a domestic hot water tank:
- Place the sensor in the well of the tank to inspect the
temperature of the hot water immediately available.
- Connect the water sensor to the «BAL» terminals of the
PRIMO Pilot.
4.4.4 - Domestic water sensor
The connection of the exterior sensor is recommended (if it is not the
heat curve is calculated using the temperature read by the air sensor).
Place the sensor on the coldest exterior wall of the building (usually
the north-facing wall). It must not be exposed to the morning sun.
It is preferred to mount the exterior sensor in the middle of the wall of
the building or of the heating zone, at least 2.5m above ground level.
Do not place the sensor:
- above windows, doors, air exhausts, or other heat sources,
- beneath balconies or gutters
To prevent mistakes in the temperatures measured due to air
circulation, insulate the exremities of the sensor’s electrical conduit.
Do not paint the exterior sensor.
4.4.3 - Exterior sensor
Note :
After connection, go to the «DISPLAY» menu and check that the
«EXTERIOR» screen appears with the value read by the probe.
If not, check the connection of the probe or the pilot connector.
4.4.5 - Underoor safety device of the 65°C
safety aquastat (OPT) with manual reset
(OPT)
Use the additional wiring provided in the kit (Ref. 710111) to protect
the oor heating circuit.
When the installation has a DHW tank, do not exceed a DHW
setpoint equal to 55°C.
CAUTION WHEN THE INSTALLATION INCLUDES A SANITARY
TANK !
1. The DHW setpoint setting must be less than 55 ° C.
2. Place the safety aquastat as close as possible to the
common outlet of all the underoor heating loops (that
is to say just upstream of the oor outlet manifold) so as
to move it away from the Pilot’s oor outlet outlet and in
order to avoid its triggering after a load of the domestic
hot water tank.
In an installation with both thermostatic valves and a room
temperature thermostat, the radiator(s) in the room in which the
thermostat is located MUSTbe equipped with a manual air valve(s).
It is mandatory to install the ambient temperature control on an
interior wall of the room for control by the appliance and not a wall
that lets out onto the outside of the building.
Installation against an exterior facing wall is prohibited.
Do not place the ambient temperature controller too close to a
window, a curtain, or a door. Avoid placing it in an alcove, a closet,
or behind drapes.
Do not place above a heat source (radiator,...)or against a wall with
a chimney.
Do not place in reach of sun’s rays, or near powerful lighting.
Place the sensor 1.50m above oor level, and at least 50cm away
from neighboring walls. Insulate the extremeties of the electrical
cabling of the installation on the side of the appliance to prevent
air currents from inuencing the measures taken.
EXCLUSIVELY connect either :
- The AMBIENT TEMPERATURE SENSOR
with DISPLAY (Réf. 751009)
- The AMBIENT TEMPERATURE RADIO
THERMOSTAT (Réf.770001)
Allother thermostats which are chronoproportional
may cause malfunctioning and render the warranty
null and void.
4.4.2 - Ambient temperature control
- Connect the two wires of the connecting cable on terminals A
and Bof the «Modbus» terminal while taking care to respect
the polarity A/B (terminal Aof the Pilot to be connected to
terminal Aof the heat pump; the same for terminal B).
- Connect:
- the brown wire to A
- the white wire to B
- the black wire to GND on both appliances.
- If you are using a dierent cable, respect the polarity of A and B as
well as the connection of the shielding on 0V on both appliances.
4.4.1 - Control connection towards the Heat
pump
Ensure that the connecting cable is distanced
from any source of electrical disturbance
(ex:  washing machine, neon lighting, power
supply cable....)
Plan for the appropriate length of
cable between the pilot and the heat
pump. Do not hesitate to cut the cable
to the appropriate length to AVOID
LOOPS.

- INSTALLATION PRIMO PILOT MANUAL- 15
5 - SET-UP
Ensure that:
- All works carried out on the hydraulic circuits and the electrical
circuits are in compliance with the regulations in effect
(inspection by a qualied professional)
-The pressure relief valve on the cold water inlet of the domestic
hot water tank (if the installation has a domestic hot water
tank) is working properly and is properly connected to a drain
in compliance with the regulations in eect.
- All piping is watertight.
- All hydraulic connections are properly tightened.
- The correct voltage at the mains switch.
- All of the valves are open and nothing is obstructing the
circulation of water in the exchanger and in the hydraulic
circuit.
- The installation is equipped with a lter valve or a lter on its
inlet and that the lter is not clogged.
- The automatic air purger’s cap is open.
- The exterior sensor and the ambient temperature control (if
present on the installation) are connected properly.
- If using an ambient thermostat, ensure that it is actually being
used.
Once all of these checks have been done, turn on the heat pump
and PRIMO Pilot.
5.1 - Before set-up
Set-up must be done by a qualied
professional.
5.3 - Starting set-up
For optimal set-up, make sure that all
the required accessories (room control,
decoupling kit, etc...) are connected before
starting the set-up. For room thermostats, make
sure they are in heating demand (sending a
closed contact to the pilot).
NOTE:
If you choose not to start set-up (NO) this option remains accessible
in the expert menu, by the COMMISSIO. sub-menu.
Inspect the entirety of the hydraulic connections (nuts with washers,
toric joints or anything assembled with glue) which may loosen
during transport or during the installation process, and tighten if
necessary.
After pressurising the appliance, it is important to check the
watertightness (both visually and by any lowering of pressure) of
all internal and external connections.
Any deterioration of the appliance due
to a lack of watertightness renders the
warranty null and void.
5.2 - Check watertightness 5.4 - Step 1: Circuit choice
Select the kind of circuit connected (domestic hot water,
radiators).
NOTE: Circuits are proposed according to the sensors which are
connected.
Activate the backow prevention device of the installation to ll the
heating circuit to just over 1.5 bars of pressure.
The PRIMO Pilot automatically conrms the lling of the installation
once the pressure reaches 1.6 bars.
A manual conrmation (press ) is possible starting at 0.6
bars of pressure.
During the lling stage, the PRIMO Pilot
indicates the pressure measured in the
heating circuit.
Filling
5.5 - Step 2: Filling
When the PRIMO Pilot is turned on for the rst time, it will ask you
to conrm the language of use (French, English, German, Italian,
Spanish, or Polish), and will request to start set-up:
Choose yes and conrm by pressing .
COMMISSIO.

- INSTALLATION PRIMO PILOT MANUAL-
16
5.7 - Step 4 : Choosing the back-up
It is possible to select the electrical back-up or not declare a back-
up)..
The PRIMO Pilot will indicate when set-up has been achieved:
And will automatically put itself in standby mode.
The PRIMO Pilot can be left in this state until rst use.
5.8 - Step 5: Finishing set-up
5.9 - 1st use
To turn on the PRIMO Pilot, press .
Long pressing puts the PRIMO Pilot in standby mode.
The purging cycle is launched for a duration of 30 minutes and will
automatically stop after that time is up.
At any time during the cycle, you can:
- Interrupt (or resume) the cycle by pressing on .
- End the cycle and continue to the next step by pressing
5.6 - Step 3: Purging the installation
During the cycle, check that the automatic purgers are open and
regularly activate the manual purgers.
If the pressure in the circuit becomes insucient due to the volume
of air purged, the PRIMO Pilot will indicate it and will pause the
purging cycle.
Activate the backow prevention device or the lling valve to raise
the pressure.The purging cycle will resume automatically once there
is sucient pressure.
During the purging cycle, the screen
indicates the countdown until the
automatic stop of the cycle as well as
the pressure in the circuit.
The purging cycle activates the circulator pump (and the 3-way
valve if production of domestic hot water is also installed) at an
alternating rhythm to allow the displacement and purging of any
air bubbles accumulated at high points of the installation using the
PRIMO Pilot’s automatic purger.
AIR BLEED

- INSTALLATION PRIMO PILOT MANUAL- 17
6 - SETTINGS AND FUNCTIONS
6.1 - Control panel
6.1.1 - Keypad
6.1.2 - Display
bsymbols of current operating state
c9 character message
eDay of the week: (1= Monday; 2= Tuesday...)
fDisplay zone: temperatures, pressure, settings, time...
dCurrent comfort mode
b
c
d
ef
Button Primary function
ex. : decrease / scroll down
Secondary function
ex. : holiday mode
Primary function
(short press)
Secondary function
(long press)
- menu access
- return / cancel
locking / unlocking of the
keypad
- on /o standby mode
- setting the
temperatures
program scheduled
comfort modes
- increase the setting
- scroll up
activate temporary
comfort mode
- conrm / remove error
- display pressure or T°
information on
temperatures and current
operating state
- decrese the setting
- scroll down activation of holiday mode
defrosting in progress circulator pump working
ventilator working domestic hot water acti-
vated
compressor working heating activated
power level keypad locked
electrical back-up installer menu
Programming
active Comfort mode Eco mode
Frost protection
mode Holiday mode

- INSTALLATION PRIMO PILOT MANUAL-
18
6.2 - Menus 6.3 - Actions to be activated using a
combination of buttons
Action combination of
buttons
Reset counters to zero
Certain counters cannot be reset to zero. Only
the counters which can be reset are aected by
this action.
in the «counters» menu
+
press for 5s
Reset to default settings
(return to factory settings)
in the «settings» menu
+
press for 5s
Menus (and sub-menus) access
buttons
menu User
menu INSTALLer
(Display here under will be shown or hidden according to product
conguration)
+
- HP CIRC
- CIRC.PUMP
- OUTS.TMAX
- OUTS.TMIN
- backup
- HEAT CURV 1
- HEAT TMAX.
- HEAT TMIN
- SHARING
- ANTI_BACT
: Setting the speed of HP circulating pump
: Setting the speed of heating circulating pump
: Outside temperature on the warmest day
: Outside temperature on the coldest day
: Choice of back-up
: Setting the heat curve 1
: Heat curve 1 setpoint on the coldest day
: Heat curve 1 setpoint on the warmest day
: Activation of priority sharing
: Activation of anti-bacteria function
menu expert
+
- settings
- display
- data calc
- counters
- configura.
- air bleed
- manual
- COMMISSIO
- modbus
- software
: Access to all parameters
: State of operation of the pilot
: Temperatures and time delays in progress
: Operation counters
: Choice of circuits and their controls
: Activation of a special air purge cycle
: Manual operation of component for diagnostics
: Access to the set-up
: Remote control setting up
: Manage software version
Press to exit the menus and sub-menus.

- INSTALLATION PRIMO PILOT MANUAL- 19
Parameter N° Description Unit Range of setting Factory
setting
P202 Maximum exterior temperature (TEMA) °C 11 to 25 20
P203 Minimum exterior temperature (TEMI) °C -30 to 10 -5
P204 Summer/winter changeover: choice of changeover method -
auto: changeover is done automatically based on
the exterior temperature
manu: changeover is done manually by the user
manu
P205
Summer/winter time delay: time period for observation of the exterior
temperature before automatic season changeover. Only used if
automatic changeover is activated.
hour 0to 48 12
P206
Reactivity: the temperature for heating takes into account the ambient
temperature to accelerate heating time when heating is switched on or
restarted.
-yes: reactivity activated
no: reactivity deactivated no
P207 Anticipation of heating: heating restarted before return from holidays
(for a home already at the set temperature on return) -yes: anticipation activated
no: anticipation deactivated no
P208 Minimum exterior temperature for operation using only the HP (TEPAC).
The back-up is authorised to operate in colder temperatures. °C P209 to 20 2
P209
Maximum exterior temperature for operation using only the back-up
(TEAPP).
The heat pump is authorised to operate in warmer temperatures.
°C -20 to +10 -20
P210 Full-hour operation -
0: no operation allowed
1: HP limited to 1st power stage
2: HP limited to 2nd power stage
3: full HP without back-up
4: do not use
5: do not use
6: full autorization : HP + back-up
7: back-up without HP
8: anti-frost confort level
9: eco
10: do not use
6
P212 Type of back-up -no: no backup
Elec: Electrical back-up no
P213 Heat pump time-out: allows the heat pump to continue running for a
period of time after intervention of the back-up min. 1to 20 5
P214 Dierence in temperature between the back-up and the heat pump °K 0to 7P212 = ELEC
4
P215 Presence of a heat pump -0: operation without a heat pump
1: presence of a heat pump 1
P216
to
p227
Not concerned -Do not change the setting 0.5
P228 Post-circulation of the heat pump circulator pump -Do not change the setting 3
P229 Not concerned -Do not change the setting 0.5
P230 Speed of heating circuit circulator pump %10 to 100 100
P231 Set temperature of heating water °C
auto: automatic set temperature from the air
sensor or exterior sensor (if connected)
or
20 to 70: setting xed in °C
AUTO
P232 Maximum set temperature (TCMA) for the heating circuit °C P233 to 70 70
6.4 - List of parameters which can be set

- INSTALLATION PRIMO PILOT MANUAL-
20
Parameter N° Description Unit Range of setting Factory
setting
P233 Minimum set temperature (TCMI) for the heating circuit °C 20 to P232 40
P234 Heating circulation is controlled by the ambient temperature control -
0: permanent
1: controlled by ambient temperature control
2: controlled by ambient temperature control
with set temperature for no heating request –
«anti-cold radiators» function (requires ambient
temperature sensor)
1
P235
Lowering of the temperature when not requested: lowering of
temperature applied to the heating temperature when the ambient
temperature is not being requested. °K 0to 30 4
P236 Lowering in ECO: lowering of the temperature applied in ECO mode. °K 0to P237 10
P237 Lowering in Frost protection: lowering of the temperature applied in
Frost protection mode. °K P236 to 40 20
P238 Auto-adaptability: automatic correction of the heat curve based on the
ambient temperature on a 24h cycle -yes: correction activated
no: correction deactivated no
P239 Complementary auto-adaptability: automatic correction of the
temperature not requested on a 3h cycle -yes: correction activated
no: correction deactivated no
P241
to
p245
Not concerned -Do not change the setting -
P247 Ambient temperature hysteresis (requires an ambient temperature
sensor): dierence in ambient temperature to engage a heating request. °K 0,1 to 10,5
P270 Temperature of primary circuit for cylinder controlled by aquastat (dry
contact) °C 20 to 70 60
P271
Domestic sharing: simultaneous operation of heating and domestic hot
water production at the end of the tank’s heating cycle. Increases the
available heating time for installations with a larger volume of domestic
hot water.
-yes: sharing activated
no: sharing deactivated no
P272
Anti-legionellosis – activation and choice of frequency: the cycle raises
the temperature in the domestic hot water tank. This cycle eliminates the
bacteria through thermal shock.
-
0: protection deactivated
1: (monthly): the cycle is carried out at the
beginning of each month, on the rst day P273
the month
2: (weekly): the cycle is carried out each week on
day P273
0
P273 Anti-legionellosis – choice of day to carry out anti-legionellosis cycle -1(Monday) to 7(Sunday) 2
P275 Circulator pump speed during production of domestic hot water %10 to 100 100
P278 Lowering of the domestic hot water temperature in ECO mode. °K 0to 40 10
P279 Maximum heating time of the domestic hot water tank (heating time too
long function) min. 5to 60 20
P280 Not concerned -Do not change the setting -
P281 Domestic water request dierential: loss of heat from the domestic hot
water tank compared to the set temperature to start a new heating cycle. °K 2to 15 5
P282
to
p288
Not concerned -Do not change the setting -