auer Thorix EVOLUTION 2C User manual

Made
in France
Manual ref: 1898557
Edition n°: 22.44
Installation and operating instructions
Thorix
EVOLUTION 2C
Hydraulic device for controlling one direct
heating circuit and a secondary mixed
heating circuit
Compatible with all types of generator
Thorix EVOLUTION 2C
with outdoor sensor
Ref. 411003
The information contained in this document is non-contractual. Auer reserves the right to modify technical data and equipment of all appliances without prior notice.

- notice THORIX EVOLUTION -2C- -
2
CONTENTS
1  IMPORTANT: PLEASE READ IMMEDIATELY . 3
1.1 - Important information.......................................................................3
1.2 - Safety instructions and advice........................................................3
1.3 - General delivery conditions..................................................................3
1.4 - Storage and transport........................................................................3
2  INTRODUCTION ............................................. 4
2.1 - Operating................................................................................................4
2.2 - Hydraulic connection.........................................................................4
2.3 - Technical data .......................................................................................4
2.4 - Accessoires.............................................................................................5
2.5 - Initial programming............................................................................ 5
2.6 - Installation recommendations........................................................5
2.6.1 - Domestic hot water production linked to a heat generator .............................5
2.6.2 - Underoor heating as circuit 2............................................................................ 5
2.6.3 - Direct circuit
(whether or not it is registered as circuit n°1 on the THORIX).................. 5
2.7 - Hydraulics diagrams ...........................................................................6
2.7.1 - Mixed circuit (circuit n°2) generator with 1 circulator pump
for heating and 1 circulator pump for domestic hot water ...................... 6
2.7.2 - Mixed circuit (circuit n°2) + direct circuit (circuit n°1) generator with
1 heating circulator pump and 1 3-way valve for domestic hot water. 6
3  INSTALLATION................................................ 7
3.1 - Installation site......................................................................................7
3.2 - Hydraulic connections....................................................................... 7
3.2.1 - Buer Volume on Generator Return .................................................................. 7
3.2.2 - Connecting to primary circuit and heating circuits ..................................... 7
3.2.3 - Characteristics of low-energy, variable-speed circulator pump.............. 7
3.2.4 - Characteristics of by-pass with check valve.................................................... 7
3.2.5 - Application for radiator or fan coil unit circuit(s) .......................................... 7
3.2.6- Application for underoor heating circuit(s) .............................................................8
3.3 - Treatment of heating circuit water................................................8
3.3.1 - Preparing the hydraulic circuit ............................................................................ 8
3.3.2 - Water for lling the tank......................................................................................... 8
3.3.3 - Heating circuit treatment...................................................................................... 8
3.3.4 - Degassing the installation..................................................................................... 8
3.4 - Electrical connections ........................................................................9
3.4.1 - Accessing electrical connections........................................................................ 9
3.4.2 - Electrical diagram...................................................................................................10
3.4.3 - Power supply and electrical safety...................................................................10
3.4.4 - Electrical connections...........................................................................................10
3.4.5 - Using the ‘‘outdoor temperature deduction’’ function..............................11
3.4.6 - Using the ‘‘heat pump de-icing assistance’’ function.................................11
3.4.7 - Power supply to boiler controlled by 65°C safety aquastat where
the secondary circuit is an underoor heating circuit..............................11
3.4.7.1 - Boiler with < 4A power supply...............................................................................11
3.4.7.2 - Boiler with >4A powersupply or high temperature heat pump
(>65°C) or heat pump with boiler or electrical back-up ..........11
3.4.7.3 - Low temperature heat pump (< 65°C) ...........................................12
3.4.8 - Boiler or heat pump with 2 underoor heating circuits...........................12
4  SET UP .......................................................... 12
4.1 - Control box ..........................................................................................12
4.2 - Installer menu .....................................................................................13
4.3 - Conguration of the installation..................................................13
4.4 - Purging ..................................................................................................14
4.5 - Manual or automatic setting on the secondary mixed circuit................14
4.6 - Settings..................................................................................................15
4.6.1 - General parametres ...............................................................................................15
4.6.2 - Circuit 1 (direct) control........................................................................................17
4.6.3 - Circuit 2 (mixed) control.......................................................................................17
4.6.3.1 - Circuit 2 (mixed) heating curve.........................................................18
4.6.3.2 - Heat pump de-icing assistance.........................................................18
4.6.3.3 - Minimum position of 3-way valve modulation...........................18
4.7 - Adjusting ow rates ("Balancing" function) .............................18
4.8 - Resetting installer parametres......................................................19
4.9 - Display ...................................................................................................19
5  USE................................................................. 20
5.1 - Setting the date and time...............................................................20
5.2 - Programming heating mode time periods ............................20
5.2.1 - Creating a new programme................................................................................21
5.2.2 - Copying existing programmes ..........................................................................21
5.2.2.1 - Copying programme from day before...........................................21
5.2.2.2 - Copying a pre-recorded programme..............................................22
5.2.3- Modifying a programme.......................................................................................22
5.2.4 - View programme ....................................................................................................22
5.3 - User Menu ............................................................................................23
5.3.1 - Adjusting target temperatures for Circuit 1 (direct)
and Circuit 2 (mixed).............................................................................................23
5.3.1.1 - Setting ambient temperature 1 or 2...............................................23
5.3.1.2 - Setting Ambient Temperature ECO 1 or 2.....................................23
5.3.1.3 - Setting Ambient Temperature FROST PROTECTION 1 or 2.....23
5.3.2 - Setting a holiday period.......................................................................................24
5.3.3 - Stopping the Thorix EVOLUTION......................................................................24
5.3.4 - Temporary override of set comfort mode
by programming a time period.........................................................................24
5.3.5 - Selecting summer / winter modes...................................................................25
5.3.6 - Setting the language.............................................................................................25
5.3.7 - Accessing measurements (temperatures, contact) and operating
information (circulator pump and 3-way valve)..........................................25
6  MAINTENANCEAND REPAIRS LOCKING
THE KEYBOARD................................................. 25
6.1 - Maintenance aids in the installer menu ....................................25
6.1.1 - Accessing measurements (temperatures, contact) and
operating information (circulator pump and 3-way valve).....................25
6.1.2 - Viewing counters and meters ............................................................................26
6.2 - Locking the keyboard ......................................................................26
6.2.1 - Lock = NO.......................................................................................................................................................................26
6.2.2 - Lock = auto................................................................................................................................................................26
6.2.3 - Lock = PRO...................................................................................................................................................................26
6.3 - Error messages....................................................................................27
6.4 - Sensor data curve charts.................................................................28
6.4.1 - Boiler, outgoing, incoming 3WV and DHW sensors...................................28
6.4.2 - Outdoor sensor .......................................................................................................28
6.5 - Maintenance........................................................................................28
6.5.1 - Water circuit..............................................................................................................29
6.5.2 - Troubleshooting......................................................................................................29
7  PARTS ............................................................ 29
8  WARRANTY ................................................... 30
8.1 - Warranty limits....................................................................................30
8.1.1 - General information ..............................................................................................30
8.1.2 - Cases (unlimited) for exclusion from warranty............................................30
8.1.2.1 - Heating circuit water ............................................................................30
8.1.2.2 - Handling....................................................................................................30
8.1.2.3 - Installation site........................................................................................30
8.1.2.4 - Electrical connections ..........................................................................30
8.1.2.5 - Hydrualic connections .........................................................................30
8.1.2.6 - Accessories...............................................................................................31
8.1.2.7 - Maintenance............................................................................................31
9  GLOSSARY..................................................... 31

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 3
1.1 - Important information
1 - IMPORTANT: 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 appliances.
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 safety instructions given in the manual must be strictly
respected.
- Rinse and clean the hydraulic heating circuits before connecting
the appliance.
-The appliance can only function with water in it. Never switch on
the appliances if the installation has not been lled with water
rst.
- It is recommended that you carry out checks for limescale and
sludge periodically and clean if necessary.
- Always switch o the power supply before any work is undertaken
on the appliance.
- Do not submerge any electrical parts or control components of
the appliance in water.
Before carrying out any connections, please ensure that the
appliance is compatible with the installation.
Before switching on the power supply, please check that the
network tension which the appliance will be connected to is the
same as the one indicated on the rating plate of the appliance.
Before any maintenance work or handling, or in case of
breakdown or incorrect operation, always disconnect the
appliance from the power supply and seek advice from a
specialist.
1.3 - General delivery conditions
In general, the material is transported at the recipient’s 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.
1.2 - Safety instructions and advice
The Thorix EVOLUTION must only be installed indoors, in premises
protected from bad weather and frost.
• It is FORBIDDEN to install the Thorix EVOLUTION 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.
• It is FORBIDDEN to use the appliance if the installation has no
water in it.
• Any work on the appliance must be carried out by a qualied
professional and with the power supply switched o.
• This appliance must be installed in accordance with national
electrical installation rules. Check that the installation is
equipped with a correctly sized and connected ground cable.
If Circuit 2 (mixed) is an underoor
heating circuit, the power supply of the
boiler must be controlled from the underoor
temperature limiter on the Thorix EVOLUTION
(see § "Electrical connections").
1.4 - Storage and transport
Acceptable temperature range from -20°C to +60°C.
The appliance must be stored and transported in its original
packaging and completely empty of any water.
The manufacturer is not responsible for any damage caused by
failure to follow the instructions provided, errors in handling,
installation or use.
These installation and operating instructions is subject to change
without notice.

- notice THORIX EVOLUTION -2C- -
4
2 - INTRODUCTION
The Thorix EVOLUTION manages and controls a mixed heating
circuit (circuit n°2) according to outdoor temperature and as an
option to a direct heating circuit (circuit n°1) which is controlled by
a thermostat or ambient temperature sensor, using energy provided
by a boiler or a heat pump.
2.1 - Operating
The Thorix EVOLUTION is equipped with an electronically-
controlled, 3-way mixing valve which adjusts the temperature of the
outgoing water (to the radiators or underoor heating) according to
outdoor temperature (with an outdoor sensor) and the temperature
in the space that is to be heated (with or without a thermostat or
interactive ambient temperature sensor).
it is equipped with an electronically-controlled motorised 2-way
valve, which allows the water coming from the boiler to ow straight
to Circuit 1 (direct) - radiators or underoor heating - according to
the temperature in the space that is to be heated (a thermostat or
ambient temperature sensor is necessary in this case).
The advantages: • The technology of theThorix EVOLUTION is
reliable and low-noise (electronically-controlled
circulator pump and valve).
• Quick and easy access to components.
2.2 - Hydraulic connection
Boiler,
heat pump
or generator
direct
circuit
mixed
circuit
2.3 - Technical data
Dimensions
Height 286 mm
Width 420 mm
Depth 260 mm
Hydraulic connections 3/4"
Weight 10 kg
Installation max. power 18 kW
Side view
View facing appliance
ow from
boiler 3/4’’
return-ow to
boiler3/4’’
outgoing point to
mixed circuit 3/4’’
incoming point
from mixed circuit
3/4’’

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 5
2.4 - Accessoires
The components described below are optional:
- Room thermostat (RT) -Ref. 710043-
For controlling ambient temperature without automatically
correcting the desired set temperature (see §‘‘Regulator settings’’).
- Room thermostat with clock/timer for weekly
programming (CT) -Ref. 710044-
For controlling ambient temperature without automatically
correcting the desired set temperature (see §‘‘Regulator settings’’).
- Room temperature sensor with display-Ref. 751009-
For controlling ambient temperature with automatic correction of
the desired set temperature, and comfort level adjustments to be
made by the user according to the room temperature.
2.5 - Initial programming
The Thorix EVOLUTION is pre-programmed at the factory to supply
water to an underoor circuit, controlled by a room temperature
sensor.
These settings enable a simplied start-up process but they can be
altered to suit more complex or specic installations.
These settings can be accessed through the installer menu.
CIRCUIT 1 (direct circuit)
Transmitters
Room temperature sensor
(optional)
CIRCUIT 2 (mixed circuit)
Transmitters
Underfloor circuit
(with 65°C safety aquastat)
CIRCUIT 2 (mixed circuit)
Room temperature monitor
Room temperature sensor
(optional)
Thorix EVOLUTION initial settings
2.6 - Installation recommendations
This connection is optional in cases where the generator is equipped
with a 3-way valve which ensures a total switch to domestic hot
water production when requested.
The underoor heating circulator pump slows down automatically
depending on the drops in pressure (max. value corresponds to
PAR.263).
To ensure that domestic hot water takes priorityit is possible
to set an external contact input ( PAR.204 = 1: controls when heating
circuits are stopped) and connect a dry contact switch from the boiler
onto the Thorix EVOLUTION.
If there is a domestic hot water request the dry contact opens and
causes the heating circuits to stop.
2.6.1 - Domestic hot water production linked to a
heat generator
When underoor heating is connected to circuit 2 on the THORIX
Evolution, the underoor temperature limiter (UTL) on the THORIX
MUST be used to monitor power supply from the heat generator.
See § "Electrical connections" for details.
2.6.2 - Underoor heating as circuit 2
2.6.3 - Direct circuit (whether or not it is
registered as circuit n°1 on the THORIX)
Add a check valve (CV) to the direct circuit in order to
block o any unwanted water ow generated by the underoor
heating circulator pump.
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
F 
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f  é 
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
d0�J
Phase common
Boiler
RTS1
RTS 2
OS
0/1input
Voltage-free alarm signal
(output 0/1)
Neutral
Switch with 230V coil and
dry contact (usually "o")
to 230V power supply of the CPHDHW or the 3-way directional valve 3WVDHW

- notice THORIX EVOLUTION -2C- -
6
2.7.2 - Mixed circuit (circuit n°2) + direct circuit
(circuit n°1) generator with 1 heating
circulator pump and 1 3-way valve for
domestic hot water
2.7 - Hydraulics diagrams
MANDATORY in cases where circuit n°2 is an
underoor heating circuit.
Make sure that the boiler’s power supply passes
through the underoor temperature limiter (UTL) on
the THORIX to avoid any risk of overheating in the oor (see §
«Electrical connections»).
Add a check valve (CV) onto the direct circuit in order
to block o any unwanted water ow generated by the underoor
heating circulator pump during phases of domestic hot water
production.
HB Hydraulic block including a low-energy, variable-speed circulator pump and a motorised 3-way valve
2WV Optional 2-way motorised valve
By-pass By-pass with check valve
R Electronic regulation
T3WV Outgoing water temperature sensor 3-way valve
RT1 Circuit 1 room thermostat or room temperature sensor (compulsory if using motorised 2-way valve)
RT2 Circuit 2 room thermostat or room temperature sensor
OS Outdoor sensor
Tboiler Sensor for temperature provided by boiler (= outgoing to direct circuit)
Tincoming Incoming water temperature sensor
UTL Underoor heating temperature limiter Limiteur de température plancher (65°C) (supplied)
BCP Boiler circulator pump for heating
CPDHW Boiler circulator pump for domestic hot water production
CV Check valve for radiator circuit
3DHW 3-way valve for domestic hot water
2.7.1 - Mixed circuit (circuit n°2) generator
with 1 circulator pump for heating and 1
circulator pump for domestic hot water
MANDATORY in cases where circuit n°2 is an
underoor heating circuit.
Make sure that the boiler’s power supply passes
through the underoor temperature limiter (UTL) on
the THORIX to avoid any risk of overheating in the oor (see §
"Electrical connections").
Add a check valve (CV) onto the direct circuit in order
to block o any unwanted water ow generated by the underoor
heating circulator pump during phases of domestic hot water
production.
Activate external control of heating circuits to ensure
that domestic hot water production is the top priority (see §"Electrical
connections").
Boiler,
heat pump or
generator
DHW tank
CPDHW
T boiler
bypass
T return
Thorix
evolution
T3WV
RTS2
OS
RTS1
Circuit 1 (direct circuit)
Circuit 2 (mixed circuit)
HB
BCP
2WV
UTL
V
Boiler,
heat pump or
generator
DHW tank
bypass
3DHW
T return
Thorix
evolution
T3WV HB
2WV
UTL
V
RTS 2
RTS1
T boiler
Circuit 1 (direct circuit)
Circuit 2 (mixed circuit)
OS

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 7
3 - INSTALLATION
The Thorix EVOLUTION must be installed in an open space to allow
the electronic components (regulation and low-energy pump) to
cool down by means of natural ventilation.
The ventilation holes underneath and on top of the appliance should
be left free.
The appliance must absolutely not be installed in a conned space
such as a closed cupboard.
The maximum room temperature must not exceed 25 °C.
Leave a free space of 50mm on each side of the appliance so that
the casing may be removed easily.
3.1 - Installation site
Connection to the primary boiler circuit and heating circuits
must be made using a PEX 25 tube, a steel 3/4’’ tube or a copper
22-1 tube and 3/4’’ at swivel joints.
3.2.2 - Connecting to primary circuit and
heating circuits
Power absorbed: 4 to 70W depending on the speed.
Input current 0.05 to 0.58A depending on the speed.
3.2.3 - Characteristics of low-energy, variable-
speed circulator pump
Available pressure head (m)
Flow rate (m3/h)
The maximum by-pass ow-rate depends on the manometric height
which is imposed by the boiler circulator pump:
3.2.4 - Characteristics of by-pass with check
valve
By-pass ow rate depending on the manometric height applied by the boiler
circulator pump
By-pass delivered with
the appliance
By-pass delivered with
optional 2-way valve
litres / hour
To heat with radiators or fan coil units, the heating water temperature
must not exceed 80°C. This limit is automatically set when the circuit
selected in the "Configuration" menu is "Radiators".
Thermostatically-controlled valves: these valves should primarily be
used on premises which benet from a lot of free energy calories
from the sun.
In an installation where all valves are thermostatically controlled,
it is essential to use a bi-passage function (e.g. a dierential valve).
For installations which include thermostatically-controlled valves
and a room temperature control (thermostat or room temperature
sensor), the premises where the room temperature control is located
MUST have radiator(s) equipped with manual valve(s).
It is IMPERATIVE to refer to the installation and assembly
instructions of the thermostat or the room temperature sensor to
ensure that you get the best results from it.
3.2.5 - Application for radiator or fan coil unit
circuit(s)
3.2 - Hydraulic connections
3.2.1 - Buer Volume on Generator Return
To prevent the generator from overheating when the radiator(s)
circuit(s) or heating oor(s) are no longer in demand (closing the
thermostatic valves and/or closing the Thorix 3-way mixer valve)
and in the case of installation with a generator having a low
inertia (low volume of water and/or low mass) install obligatorily
on the return of the generator a buer volume sucient and
corresponding to the largest power stage of this generator.
Note: in the case of a modulating generator, the largest stage is in
fact its minimum power (= 0 if 100% modulating or its minimum
power «Pmini» if modulating from «Pmini» to «Pmax»).
Example 1, larger-stage electric boiler P = 4kW, operating with
a dierential control ΔT = 2°K and for operation of a minimum
duration Δt = 2 minutes, the minimum volume of the boiler and
the buer volume must be:
Vmini = P(kW) x ∆t =
2(kW) x 4 (hour)
x 1000 ≥ 57 (liters)
If the boiler contains 5 liters of water, the minimum buer volume
is 57 - 5 = 52 liters.
Example 2, gas boiler or fuel oil «Pmini» = 8 kW, operating with
a dierential control ΔT = 7°K and for operation of a minimum
duration Δt = 5 minutes, the minimum volume of the boiler and
the buer volume must be :
Vmini = P(kW) x ∆t =
8(kW) x 5 (hour)
x 1000 ≥ 82 (liters)
If the boiler contains 30 liters of water, the minimum buer volume
is 82 - 30 = 52 liters.
Example 3, Larger Power Stage of Heat Pump P = 11 kW, operating
with a dierential control ΔT = 5°K and for operation of a minimum
duration Δt = 5 minutes, the minimum volume of the heat pump
and buer volume must be :
Vmini = P(kW) x ∆t =
11(kW) x 5 (hour)
x 1000 ≥ 158 (liters)
If the heat pump contains 5 litres of water, the minimum buer
volume is 158 - 5 = 153 litres.
1,16 x 2(°K)
60
1,16 x 7(°K)
60
1,16 x 5(°K)
60
1,16 x ∆T
1,16 x ∆T
1,16 x ∆T

- notice THORIX EVOLUTION -2C- -
8
Several dierent types of material are used to make a heating circuit.
Instances of corrosion may occur through galvanic coupling in new
and old installations alike.
The water circuit must only be lled using untreated (unsoftened)
water from the drinking water circuit. If water from any other source
(e.g. a well or a drill-hole) is used, the warranty will be rendered null
and void.
Water lling:
Ensure that all valves are open when the heating circuit is lled
with water.
3.3.2 - Water for lling the tank
3.3.3 - Heating circuit treatment
Central heating installations must be cleaned to eliminate debris
(copper, bres, soldering waste) which can come from setting up
the installation or chemical reactions between metals.
Treatment products from other manufacturers may be used if they
guarantee suitability to all the materials used in the installation and
they oer eective corrosion resistance. In this case, please refer to
their insruction manuals.
We would recommend the use of SENTINEL products for preventative
and curative heating water circuit treatment.
• Fitting the appliance onto new installations (under 6 months) :
- Clean the installation with an all-purpose cleaning product to
eliminate installation debris (copper, bres, soldering waste).
For example : SENTINEL X300 or SENTINEL X800.
- Rinse the installation thoroughly until the water is clear and
completely free of impurities.
- Protect the installation from corrosion with an inhibitor, (for
example SENTINEL X100) or from corrosion and frost with an
inhibitor and an anti-freeze agent (for example SENTINEL X500
or SENTINEL R600).
• Fitting the appliance onto existing installations:
- De-sludge the installation with a product for eliminating sludge
from the intallation, for example SENTINEL X400 or SENTINEL
X800.
- Rinse the installation thoroughly until the water is clear and
completely free of impurities.
- Protect the installation from corrosion with an inhibitor, (for
example SENTINEL X100) or from corrosion and frost with an
inhibitor and an anti-freeze agent (for example SENTINEL X500
or SENTINEL R600).
The corrosion inhibitor:
- Limits limescale formation,
- Prevents "pinhole" corrosion,
- Prevents sludge accumulation and the spread of bacteria in
new installations (algae in low-temperature circuits)
- Prevents hydrogen formation
- Eliminates noise from generators.
The oxygen present in air is very corrosive. Therefore, manual or
automatic degassing air valves should be tted to each high point
of the installation and manual air valves should be tted onto each
radiator to ensure a continuous degassing of the installation (see
§ "Purging").
3.3.4 - Degassing the installation
Any deterioration of the appliance which
is due to unsuitable lling water quality,
corrosion, absence of the treatment products
which are described above and / or incorrect
degassing of the appliance will render the
warranty null and void.
INVALIDATION OF WARRANTY
Before tting the Thorix EVOLUTION, the installation must be rinsed
with a suitable product.
This helps to eliminate all traces of debris such as soldering waste,
joint ller, grease, mud or metallic particles in radiators, underoor
heating circuits etc.
3.3.1 - Preparing the hydraulic circuit
3.3 - Treatment of heating circuit water
For underoor heating, the heating water temperature must not
exceed 50°C. This limit must be set in the "PARAMETRes" (P252 <
50°C) menu when the circuit selected in the "configuration" menu
is "underfloor".
The mixed circuit (n° 2) is equipped with a manual reset aquastat
set to 65°c at the heating circulator pump outlet.
If circuit n°1 is also an underoor heating circuit, it is obligatory to
add another safety measure by tting another 65°C aquastat with
manual reset, which will cut o the boiler circulation pump in case
of over-heating.
3.2.6- Application for underoor heating
circuit(s)
If your second circuit is an underoor
heating circuit it is OBLIGATORY to
control the power supply of the boiler from
the underoor heating temperature limiter
on the Thorix EVOLUTION (see § "Electrical
connections").
Furthermore, it is important to protect central heating installations
from risks of corrosion, limescale, and microbiological development
by using a corrosion inhibitor which is suitable for all types of
installation (steel radiators, cast iron, PEX underoor heating).
Products used for heating water treatment must be approved by
your local or national public hygiene and health authority.

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 9
IMPORTANT: ALL CURRENT RULES AND REGULATIONS ON ELECTRICAL SAFETY
IN YOUR COUNTRY MUST BE RESPECTED
Electrical connections for the appliance must be carried out by a qualied professional with the appliance switched o from mains power.
3.4.1 - Accessing electrical connections
3.4 - Electrical connections
Remove the upper cover of the appliance and also the protective cover on the electronics board.
Vue capots de
protection retirés
View with safety
caps removed
Temperature sensor for water
retuning to boiler
Temperature sensor for water
retuning to boiler
Temperature sensor for water
arriving from boiler
Temperature sensor for water
ougoing to heating circuit
UTL
(underoor circuit only)
ground
Power supply to motorised valve
Brown wire on terminal 3
Blue wire on terminal 4
Diagram of electrical connections for the appliance
The terminal strips are spring-loaded «Cage Clamps». For handling, use a 3.5 x 0.5mm screwdriver.
1: Insert the screwdriver into the  ap just above or
below the identication number.
2: Insert the wire into the «CAGE CLAMP» when the
ap is open.
3: Remove the screwdriver.
Remarque :
The wires must be stripped to the following lengths between 10 et 12mm.

- notice THORIX EVOLUTION -2C- -
10
Place a bipolar switch combined with a 6A(*) fuse (F) or a 6A (*)
magnetic thermal circuit breaker on the power line of the Thorix
EVOLUTION.
Connect the two power cables (phase and neutral) onto the two
power terminals, with the ground cable on the ground terminal of
the appliance.
The manufacturer is under no circumstances responsible for any
consequences which may arise due to an incorrect choice of power
cable section or any other lay-out or installation errors.
(*) : see § "Power supply to boiler must be controlled by 65°C safety
thermostat where the secondary circuit is an underfloor heating
circuit."
The appliance is delivered from the factory fully wired. However, it
is still necessary to connect to the following items to the correct
terminals:
- Amb1(RTS1) = Primary direct circuit room temperature sensor
(Ref.751009) or room thermostat (obligatory with the 2-way
motorised valve option).
3.4.3 - Power supply and electrical safety
3.4.4 - Electrical connections
3.4.2 - Electrical diagram
PH-N 230V power supply + ground for electronics board
F 6A safety fuse
2WV Optional 2-way motorised valve
Circ. Variable-speed circulator pump (signal PWM2) with
3-way directional mixing valve (3WMV2)
T3WMV Sensor for leaving water from 3-way mixing valve
OS Outdoor temperature sensor
RTS1 Circuit 1 (direct) thermostat or room temperature
sensor
(obligatory with the optional 2-way motorised valve)
RTS2 Circuit 2 (mixed) thermostat or room temperature
sensor
Input 0/1 Dry contact input, activated if switched to "O". See
Par. 204* for a description of its purpose (e.g. used
to ensure that domestic hot water is the priority at
the boiler).
Output 0/1 Dry contact output (see PAR.219* for description of
purpose)
UTL 65°C safety aquastat with manual reset for
underoor heating as a mixed secondary circuit
(supplied)
T boiler Outgoing water temperature sensor
T return Incoming water temperature sensor
* See § "Set-up" for an explanation of parametres PAR.201 to PAR.229
- Amb2 (RTS2) = secondary mixed circuit room temperature
sensor (Ref. 751009) or room thermostat.
In order to obtain optimum comfort levels and to benet from
the extra functions on the appliance (overriding timer settings
from a distant position, optimising the heating cycle...) we
would recommend that you use the room temperature sensor
(Ref. 751009).
For installations with thermostatic mixing valves and a
thermostat or room temperature sensor, the premises where
the thermostat or the room temperature sensor is located must
have radiator(s) equipped with manual valve(s).
The ambience controller must be positioned on an inside wall
of the premises which will be monitored by the appliance.
It should not be positioned on a wall which leads outside on
the other side.
Do not place the ambience controller too near to a window,
curtain or door. Do not install it in an alcove, a cupboard or
behind any kind of wall covering.
Do not place it above a heat source ( e.g. radiator or replace)
or on a wall with a replace behind it.
Do not place it in strong sunlight or powerful lighting.
Fit the sensor 1.50 m above the ground and at least 50 cm away
from neighbouring walls. Insulate the end of the protective
sheath on the electric installation on the side of the appliance to
prevent any drafts that may aect temperature measurement.
T boiler
T return
T3WMV
RTS1
OS
RTS2
Input 0 / 1
Output 0 / 1 alarm signal
or room
temperature sensor input
for boiler or heat pump
Underoor heating application:
boiler power supply
230V + Ground
power supply
230V + Ground
UTL
2WV
3WMV2

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 11
To transmit an ambience request to the boiler for
at least 1 heating circuit, set parametre 219 = 1 and
connect the alarm signal to the room temperature
sensor input on the boiler.
- OS = Outdoor sensor
Position the outdoor sensor on the coldest outside wall of the
building (generally the north-facing wall).
It should not be exposed to morning sun.
It is preferable to t the outdoor sensor in the middle of the
building’s facade or heating zone, a minimum of 2.5m above
the ground.
Do not place the outdoor sensor:
• above windows, doors, air outlets or other heat sources
• under balconies or gutters.
In order to avoid errors in measurement due to air circulating,
insulate the end of the electrical sheath at the sensor. Do not
paint the outdoor sensor.
• A contact input or alarm signal output (see markings on
electronics board):
- Contact = 0 /1 input or voltage-free dry contact input. This
input is activated if the contact is open (no current can pass).
The purpose of the contact must be dened by PAR.204 (for
example used to prioritise domestic hot water).
-Alarm = 0 / 1 output or dry contact output. The purpose of the
contact should be dened by PAR.219.
Incompatible with the activation of the stop heating function
(P204 = 1 to 3).
Using the "outdoor temperature deduction" function (PAR.209 =
yes) means that you do not need to connect an outdoor sensor
to the Thorix EVOLUTION in cases where the boiler has an
outdoor sensor and a heating curve. The Thorix EVOLUTION
measures the temperature delivered by the boiler and deducts the
outdoor temperature. This temperature is then used by the Thorix
EVOLUTION as if it came from its own outdoor sensor.
As this function uses both the T boiler and T return sensors it is
necessary to activate them (PAR.229 = yes).
3.4.5 - Using the‘‘outdoor temperature
deduction’’ function
As the ‘‘heat pump de-icing assistance’’ function (PAR.264=yes)
uses both the T boiler and T return it is necessary to activate them
(PAR.229 = yes).
This function may only be activated if circuit 2 (the mixed circuit) is
an underoor circuit which is not controlled by thermostatic mixing
valves or any other external control, but must be controlled by a
room thermostat or room temperature sensor, as in the following
circuit 2 conguration:
3.4.6 - Using the‘‘heat pump de-icing
assistance’’ function
floor hea.
C-2
Floor hea.
C-2
Sensor
A-2
THERMOSTA.
A-2
AND
OR
AND
3.4.7 - Power supply to boiler controlled by 65°C
safety aquastat where the secondary
circuit is an underoor heating circuit
Where circuit n°2 is a radiator circuit the
power supply to the boiler must not
be controlled by the 65°C cut-o underoor
temperature limiter
Where circuit n°2 is an underoor circuit,
to avoid any risk of overheating, the
power supply of the boiler must be controlled
from the underoor temperature limiter of the
Thorix EVOLUTION (see connection below)
3.4.7.1 - Boiler with < 4A power supply
2WV
UTL
Power supply
(230V + Ground)
Thorix and boiler
Where an underoor heating circuit is used:
if the boiler power supply is < 4 A
(230V + Ground)
This must be done from the Thorix
Disconnect the UTL wire which is connected to the phase terminal
of the Thorix EVOLUTION and connect it to terminal n°6.
Next, connect the dry contact of the UTL (terminals 5 and 6) onto
the load shedding input of the boiler or high temperature heat
pump. Load shedding brings the heat generator to a complete stop.
Where circuit n°2 is an underoor heating
circuit, in order to avoid any risk of over-
heating, load shedding must be carried out on
the boiler or heat pump using the underoor
temperature limiter of the Thorix EVOLUTION
(see connection below)
3.4.7.2 - Boiler with >4A power supply or high
temperature heat pump (>65°C) or
heat pump with boiler or electrical
back-up

- notice THORIX EVOLUTION -2C- -
12
UTL
G
2WV
Where underoor heating is used:
if boiler power supply is <4 A
(230V + Ground)
the underoor temperature limiter (UTL) must
be connected to the load shedding input of the
boiler and bring it to a complete stop.
Power supply
(230V + Terre)
Throix
Load shedding is not necessary for a low temperature heat pump
(with neither boiler nor electrical backup).
3.4.7.3 - Low temperature heat pump (< 65°C)
BH Hydraulic block with low-energy, variable-speed circulator pump and a
motorised 3-way valve
2WV Optional motorised 2-way valve
3WVS Sensor for outgoing water from 3-way mixing valve
UTL Underoor temperature limiter (65°C) (supplied)
BCP Boiler circulator pump
CPDHW Boiler circulator pump for domestic hot water
CV Check valve for radiator circuit
UTL2 Underoor temperature limiter (65°C) (not supplied)
3.4.8 - Boiler or heat pump with 2 underoor
heating circuits
If circuit n°1 is also an underoor circuit, extra safety measures must
be taken by adding a second 65°C safety aquastat with manual reset
(UTL2) which will switch o the boiler circulator pump in case of
over heating.
Heat pump
Thorix evolution
DHW tank
BCP
UTL
UTL2
Circuit n° 2 (mixed)
Circuit n° 1(direct)
HB
2WV
CPDHW
• Fittings carried out on water circuits or electrical installations
must conform to current regulations and be done by a qualied
professional.
• Fill the installation with water.
• Purge the heating circuits (open the purgers fully until all of the
air has been released).
• Check that all circuits are water / air tight.
• Check that the power supply voltage is correct on the mains
disconnection switch.
• Check that all hydraulic connections have been properly tightened
and that there are no leaks.
• Check that all the valves are open, that the heating circuit is lled
with water and that nothing will prevent the water from circulating
freely in the hydraulic circuit.
• Once the aforementioned checks have been carried out, switch
the appliance on.
4 - SET UP
4.1 - Control box
Menu
On/ O
Clock settings
Dial
Display screen
Symbols and their function:
Pictograms:
Summer mode in progress
Keyboard locked
Mixed circuit circulator pump operating
Direct circuit 2-way valve open
Adjustment of ‘‘Clock’’ or ‘‘Programme’’ in progress
Comfort
Economy
Frost protection
Holiday
Adjustment/display of a setting in progress
Day of the week
Time and
temperature
display zone
9-character
message

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 13
Display when switched o:
Standard display when operating
Backlighting and LED light on on / o button are o.
Turn the dial to scroll through the installer menu:
1. Configuration of the installation
2. Purge the installation
3. target for water in the mixed circuit
4. Adjusting the settings and resetting parametres
5. balancing (only for operation with continuous pressure
drops in the mixed circuit).
6. Display of values measured
7. View counters
8. lock the keyboard
This function enables you to adapt the settings to the requirements
of the circuit that the water will be supplied to. It is not necessary if
the installation is in keeping with the default conguration (see §
‘‘Factory conguration’’).
You can return to the previous screen without saving any changes
by pressing at any time.
4.2 - Installer menu
4.3 - Conguration of the installation
Accessing the installer menu:
• Press the‘‘Menu’’ button
• Turn the dial until the display shows
''INST. MENU’’
• Press the ‘‘clock settings’’ button
and ‘‘Menu’’ button simultaneously
• Keep them pressed down together for 3 sec. to
access installer menu
Accessing the installer menu:
• Press the‘‘Menu’’ button
• Turn the dial until the display shows
''INST. MENU’’
• Press the ‘‘clock settings’’ button
and ‘‘Menu’’ button simultaneously
• Keep them pressed down together for 3 sec. to
access installer menu
Enter
37
48°C
4
Circulator pump
for mixed circuit
running
% that the 3-way
valve for the mixed
circuit is open
Temperature of mixed
circuit leaving water
Day
(Monday = 1, Tuesday = 2....)
22:17
3
turn
press
CONFIGURA.
To carry out the following adjustments:
Conguration of circuit 1
(turn dial to select type of circuit) :
Conguration of circuit 2
(turn dial to select type of circuit) :
Circuit 1 ambient temperature control
(turn dial to select COMPULSORY ambient temperature control):
Circuit 2 ambient temperature control
(turn dial to select type of ambient temperature control or to
deactivate it):
radiator
C-1Enter
floor hea.
C-2Enter
THERMOSTA.
A-1Enter
Sensor
A-1Enter
floor hea.
C-1Enter
THERMOSTA.
A-2Enter
RADIAToR
C-2Enter
NOT USED
C-1Enter
Sensor
A-2Enter
or
or
or
or
or
You can return to the previous screen without saving any changes
by pressing at any time.

- notice THORIX EVOLUTION -2C- -
14
Accessing the installer menu:
• Press the ‘‘Menu’’ button
• Turn the dial until the display shows
''INST. MENU’’
• Press the ‘‘clock settings’’ button
and ‘‘Menu’’ button simultaneously
• Keep them pressed down together for 3 sec. to
access installer menu
To fully purge the installation:
4.4 - Purging
purge
The screen will show
PURGE
1:00h
, indicating that
the circulator pump and the valves are activated and will
automatically stop after an hour.
You can:
- change the circulation time period (by turning the dial
to set the desired time and then pressing the dial to
conrm the new setting).
- let the cycle nish automatically at the end of the time
displayed.
- interrupt the cycle by pressing the ‘‘menu’’ button.
The mixed circuit circulator pump is equipped with an automatic
air valve.
During the cycle, check that the automatic air valve and the other
air valves on the installation are all properly open.
Activate the manual air valves regularly and leave open until all air
has been fully purged from the circuits.
Enter
You can return to the previous screen without saving any changes
by pressing at any time.
floor hea.
AUTO
floor hea.
MAN.
manual TT
30°C
target
Manually set the leaving
water temperature for
the 3-way valve (within
the range of PAR.253 =
30°Cto PAR.252=40°C, for
example).
4.5 - Manual or automatic setting on the
secondary mixed circuit
Enter
Enter
Accessing the installer menu:
• Press the‘‘Menu’’ button
• Turn the dial until the display shows
''INST. MENU’’
• Press the ‘‘clock settings’’ button
and ‘‘Menu’’ button simultaneously
• Keep them pressed down together for 3 sec. to
access installer menu
You can return to the previous screen without saving any changes
by pressing at any time.

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 15
P201 - An outside sensor is connected to the Thorix EVOLUTION
P202 - Maximum outside temperature (MOT)
P203 - Minimum outside temperature (MiOT)
P204 - External contact
The external contact input can be used:
- to temporarily stop the Thorix EVOLUTION
in accordance with an external regulation:
1) if P204 = 0, the input is deactivated
2) if P204 = 1, heating is stopped
(for example hot water takes priority at the boiler)
the following message
is displayed: stop heat.
20.0°C
3) if P204 = 2, reduced‘‘eco’’ function on mixed circuit
4.6 - Settings
4.6.1 - General parametres
4) if P204 = 3, reduced‘‘frost protection’’function on
mixed circuit
5) P204 = 4, not used
P205 - not used
P206 - not used
Caution: this function is incompatible with the function «deduction
of external temperature» (P209)
P207 - Summer /winter time delay (there will be a period of waiting
time to ensure that the temperature change is not temporary and
warrants the change in operating mode)
P208 - Heating advance: the heating advance is a learning function
by the clock / timer for any switch in mode from ‘‘Frost
protection’’ or ‘‘Holiday’’ to ‘‘Comfort’’ level.
This function needs an ambient temperature
controller in zone 1 or 2.
The initial heating advance = t0 = 4 hours in the underoor heating
circuit and 45 minutes in modulated radiators, depending on the
outdoor temperature (OT).
Successive heating advance periods are calculated using the
following formula: t2=t1 x (P202 - P203) / (P202 - Text) < 12 hours
P209 - Incompatible with the activation of the stop heating function
(P204 = 1 to 3).
The ‘‘outdoor temperature deduction’’ function means that the
outdoor sensor on the Thorix EVOLUTION does not need to be
connected when the boiler has an outdoor sensor and a heating
curve.The Thorix EVOLUTION measures the temperature delivered
by the boiler and deducts the outdoor temperature from it. This
temperature is then used by the Thorix EVOLUTION as if it came
from its own outdoor sensor.
The automatic summer / winter switch is no longer valid.
The following parametres must be lled in:
P210 - Generator maximum target temperature(GMa TT)
P211 - Generator minimum target temperature(GMiTT)
p212 - Generator maximum outside temperature(GMaOT)
P213 - Generator minimum outside temperature(GMiOT)
You can return to the previous screen without saving any changes
by pressing at any time.
The outside temperature
is deducted from the
temperature read by the
‘‘T chaud’’ sensor, as in the
following example:
The target temperature
for the leaving water from
the 3-way valve is deduced
from the temperature read
by the ‘‘T boiler’’ sensor:
P219 - Purpose of the voltage-free alarm signal:
The voltage-free alarm signal can be used:
- to signal the appearance of an error on the Thorix
EVOLUTION to an external control
- to transmit a heating request to the boiler from at least
one heating circuit. Connect the alarm signal to the room
thermostat input on the boiler.
P229 - Activation of leaving and return ow sensors on the boiler
which are essential for using the following functions:
- P209 = yes = activation of the‘‘outside temperature
deduction’’ function
- P264 = yes = activation of the‘‘heat pump de-icing
assistance’’ function.
The boiler should be left running at all
times to ensure that requests for frost
protection from the Thorix EVOLUTION can be
met. Set the alarm signal to P219 = 1 = ‘‘heating
request’’ and connect the alarm signal to the
boiler’s room thermostat input.
   
TEMAg TEMIg TCMAg TCMIg
20 -10 80 25
°C °C °C °C
GMOT GMiOT GMOT GMiOT
   
TEMA TEMI TCMA1 TCMI1
20 -5 40 25
°C °C °C °C
MOT MiOT MOT1 MOT MiOT1
comfort
t2(OT; t1)
t0(OT)
ambient temperature
target ambient temperature
timer programme
comfort frost protectionfrost prt.
-15
-10
-5
0
5
10
15
20
25
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Tchaud (°C)
Text (°C)
calculée
P212
P210P211
P213
OT (°C)
calculated
Tboiler (°C)
20
25
30
35
40
45
50
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Tchaud (°C)
TCdépart vanne
3 voies (°C)
P252
P210P211
P253
TT of leaving water
from 3-way valve (°C)
Tboiler (°C)

- notice THORIX EVOLUTION -2C- -
16
Display Name Unit Range
No
setting
Factory
setting
Outside sensor yes ; no no
Maximum outside temperature (MOT) °C 11 to 25 120
Minimum outside temperature (MiOT) °C -30 to 10 1-05
0 : without
1: heating stopped
2: economy mode heating
3 : frost protection mode
heating
4: not used
Time delay for summer / winter heating
mode change
hour 0 to 48 112
Heating advance yes ; no no
if P229 =YES
and
if P201=NO
Activation of the function deducting the
outside temperature. Incompatible with
the stop heating function (P204)
yes ; no no
if P209 = yes Generator maximum target temperature °C P211 to 80 180
if P209 = yes Generator minimum target temperature °C 20 to P210 125
if P209 = yes
Generator maximum outside temperature
(GMOT)
°C 11 to 25 120
if P209 =yes
Generator minimum outside temperature
(GMiOT)
°C -30 to10 1-05
0 : alarm
1 : heating request
Activation of leaving and incoming water
sensors on boiler
yes ; no no
P208
P209
P229
P219
P213
P212
P211
P210
0
Effect of external contact signal
Incompatible with the function
«deduction of external temperature»
(P209)
P201
P202
P203
P204
P207
0
Choose purpose of alarm signal
Parametres
1
= • Go into the
adjustments for the
setting
• Conrm the
adjustments made to
the setting
= • choose the parametre
• Change parametre

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 17
Parametre
s
Display Name Unit Range No setting Factory
setting
0: no (fixed speed)
1: constant flow rate
2: constant pressure losses
P251
Manual or automatic
target temperature circuit 2 (mixed)
Auto ; Man. Man.
P252 If P251 = auto
Max. target temperature for leaving
water from 3-way valve (MaTT2)
°C P253 to 80 150
P253 If P251 = auto
Min. target temperature for leaving water
from 3-way valve (MiTT2)
°C 21 to P252 130
0: permanent
1: depends on room thermostat
2: depends on room thermostat +
special operation when room is at
target temperature
P255 If P254 = 2
Offset of target temperature
for special operation
°K 0 to 30 110
P256
Lowering of heating curve
or of reference target temperature
when circuit 2 (mixed) set to Eco
°K 0 to P257 110
P257
Lowering of heating curve
or of reference target temperature
when circuit 2 (mixed) set to frost
protection
°K P256 to 40 120
P258
Only with room thermostat or room
temperature sensor
Low speed (24-hr cycle) auto-adaptability
for circuit 2 (mixed) if P254 = 2
N/A yes ; no no
P260 If P250 = 0
(Fixed speed)
Adjustment of circulation speed for
circuit 2 (mixed)
%5 to 100 5100
P261 If P250 = 1
(constant flow rate)
Target temperature
in circuit 2 (mixed) m
3
/h 0 to 4 0.1 0.4
P262 If P250 = 2
(Constant pressure losses)
Pressure loss target temperature
in circuit 2 (mixed)
mCE 0 to 10 0.1 3
P263
If P250 = 0 or 1
(Fixed speed or constant pressure
losses)
Max. pressure loss
in circuit 2 (mixed) mCE 6
P264 If circuit 2 (mixed) = underfloor
Activation of de-icing assistance for heat
pump
yes; no no
P265 If P264 = yes
Differential initiation of assistance for
defrosting
°K 0 to 20 12
P266 If P251 = MANU Manual setpoint °C P253 to P252 1P253
P267
Minimum 3-way valve modulation
position
%0 to 50%50
Circuit 2 (mixed) pump control
1
0
P254
1
Speed modulation
for circuit 2 (mixed)
P250
0
No parametres are available for Circuit 1.
It is compulsory to connect a thermostat or a room temperature
sensor.
Results of programming and of the room thermostat:
4.6.2 - Circuit 1 (direct) control
Activation of timer/holiday/frost
protection programming Result of room temperature control
device
Programme status
Result of
programming on
water temperature
Result of room
temperature
thermostat on
the 2-way valve
for:
Result of room
temperature
sensor on 2-way
valve for:
Comfort
no Comfort mode
Comfort mode
Eco Economy mode
Frost protection Frost protection
mode
4.6.3 - Circuit 2 (mixed) control
P250 - Speed modulation for circuit 2
See § "Adjusting ow rates" for an explanation of how the appliance operates depending on parametre P250.
- P250 = 0= Constant speed
- P250 = 1= Constant ow rate
- P250 = 2= Constant pressure drops

- notice THORIX EVOLUTION -2C- -
18
Example of heating curves with the parametres below:
4.6.3.1 - Circuit 2 (mixed) heating curve
4.6.3.2 - Heat pump de-icing assistance
The thermal inertia of the underoor heating circuit is used to serve
as the heat reserve which is needed for the de-icing cycles.
P264 - Yes, possible if P229 = yes = boiler leaving and return water
temperature sensors are activated.
The "heat pump de-icing assistance" function is only possible
when there is an underoor heating circuit on the
mixed circuit controlled by a thermostat or room
temperature sensor (no thermostatic mixing valves).
P265 - Dierence in temperature required to activate the heat pump
de-icing assistance (between 0 and 20°K, with default value
of 2°K).
As soon as the heat pump begins a de-icing cycle it is detected by
the two temperature sensors:
- if T boiler< 25°C and if T boiler < T return – P265 (~ 2°K) or if
T boiler < 18 °C, the 3-way valve opens.
- if T boiler ≥ 25.5°C and if T boiler ≥ T return + P265 (~ 2°K) the
leaving water target tempeature for the 3-way valve becomes
the normal temperature established for the heating again.
Températures de consigne retour circuit mélangé (°C ) en confort ; en éco. ; en
hors-gel et en non demande
0
5
10
15
20
25
30
35
40
45
50
55
60
-15 -10 -5 0 5 10 15 20 25
Température extérieure (°C)
P256=7
P257=14 P255=4
P256=7
P257=14 P255=4
      
Text maxi
TEMA
Text mini
TEMI
Teau maxi
TCMA 1
Teau mini
TCMI 1
Abaissement
non-demandé
Abaissement
éco
Abaissement
hors gel
20 -10 50 30 4 7 14
Max. OT
MaOT
Min. OT
MiOT
Max. WT
MaWT
Min. WT
MiWT
TT lower:
no heating
request
TT lower:
eco mode
Target temperatures (°C) for incoming water from circuit 2 (mixed) for comfort mode,
economy mode, frost protection mode and in absence of heating request
Outside temperature (°C)
4.7 - Adjusting ow rates ("Balancing"
function)
The Circuit 2 (mixed) ow rate should be adapted depending on
its use.
The ow rate is determined depending on the heating capacity and
the dierence in the desired temperature.
1. Operating at a xed speed for the mixed circuit
This is the default operating mode with P250 = 0
The speed can be xed using P260 (max. speed = 100 % by
default).
Note: Max. pressure drop can be xed using P263 (max.
pressure drop = 6m by default).
2. Operating at a constant ow rate for the mixed circuit
Set parametre P250 = 1
The ow rate can be adjusted using P261 (0.4m3/h by default).
Note: Max. pressure drop can be xed using P263 (max.
pressrue drop = 6m by default).
3. Operating with constant pressure losses for mixed circuit
Set parametre P250 = 2
The drop in pressure can be xed using P262 (3m by default).
This function allows the system to operate with constant
pressure drops by varying the circulator pump speed.
Check that all valves and all thermostatic mixing valves are fully
open on the mixed circuit:
P250 = 2MANDATORY
balancing
Q CM3/H ]
0.40
Enter
Set the desired
ow rate
Accessing the installer menu:
• Press the‘‘Menu’’ button
• Turn the dial until the display shows
''INST. MENU’’
• Press the ‘‘clock settings’’ button
and ‘‘Menu’’ button simultaneously
• Keep them pressed down together for 3 sec. to
access installer menu
TT lower:
frost protection
4.6.3.3 - Minimum position of 3-way valve
modulation
When the generator circulator is too powerful, a whistling noise may
occur when the 3-way valve is slightly open.
Set P267 to 5or 10%.

- notice THORIX EVOLUTION -2C- -- notice THORIX EVOLUTION -2C- - 19
The following screen indicates that
the circulator pump is adapting its
speed to reach the desired ow rate
(and memorising the pressure drop):
The balancing period may last a few minutes
When the process is nished,
the following screen appears:
Enter the obtained ow rate
See § "Repairs": "accessing temperature measurements and
information on ciruculator pumps and 3-way valves".
(this ow rate may dier from the desired ow rate because the
circulator pump speed variation is not continuous, but adjusts
gradually in stages of 10%).
IN progr.
0.48
enter
0.48
4.9 - Display
You can return to the previous screen without saving any changes
by pressing at any time.
4.8 - Resetting installer parametres
parametre
par.201
enter
Turn dial to make
selection
Hold down the "clock settings"
and "on/o" buttons for 5
seconds to access the reset function
for the installer parametres.
• Pressing yes will bring the
installation to a stop
par.201
Reset par.
NO
reset par.
yes
Accessing the installer menu:
• Press the ‘‘Menu’’ button
• Turn the dial until the display shows
''INST. MENU’’
• Press the ‘‘clock settings’’ button
and ‘‘Menu’’ button simultaneously
• Keep them pressed down together for 3 sec. to
access installer menu
You can return to the previous screen without saving any changes
by pressing at any time.

- notice THORIX EVOLUTION -2C- -
20
29/09/11
17:32
--/09/11
17:32
26/--/11
17:32
26/09/--
17:32
monday
--:32
monday
17: --
5.1 - Setting the date and time
5 - USE
• Press "clock settings"
Set month
Set day
Set year
Set minutes
Enter new settings
Set hours
N.B:
If no adjustments are made, the screen will go back
to standard display without backlighting after a few
minutes
You can return to the previous screen without saving any changes
by pressing at any time.
5.2 - Programming heating mode
time periods
Time periods at dierent comfort levels can be programmed for
each day and each circuit. The installation will automatically follow
the programmed levels.
• Press "clock settings" (3 sec.),
• The screen will display ,
• When the symbol disappears, release the "clock settings"
button
• Turn the dial to select the circuit you wish to programme.
(if there is only one circuit, go straight to the day you wish to
programme for).
Display, depending on chosen conguration.
RADIAToR
1
floor hea.
1
OR
RADIATor
2
floor hea.
2
OR
all CIRC.
1 -2
CIRCUIT 1
CIRCUIT 2
Both circuits at the same time:
= Copy programming from day
before
= Programme new comfort
level time periods
= Copy an existing programme
= Modify existing programme
= See existing programme
Choose the day for programming
Select the circuit you wish to
programme
monday
new PRoG.
COPy sun.
COPy PRog.
MODIFy PR.
see PROG.