ACV Prestige 24 Excellence Manual

Prestige 24-32 Solo/Excellence : A1004335 - 664Y6700 • D
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INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
for the Installer and the User
24 - 32 Solo
24 - 32 Excellence
Prestige

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TABLE OF CONTENTS
GENERAL RECOMMENDATIONS....................................................................................3
Safety Instructions........................................................................................................................................................................3
USER’S GUIDE...................................................................................................................4
Meaning of Symbols ....................................................................................................................................................................4
Boiler Marking................................................................................................................................................................................5
Control Panel and Display .........................................................................................................................................................6
Stand-by Screen ............................................................................................................................................................................7
Lockout Screen..............................................................................................................................................................................7
Status Messages............................................................................................................................................................................7
What to Check on a Regular Basis ..........................................................................................................................................8
In case of Problem........................................................................................................................................................................8
Boiler Setup Guide .......................................................................................................................................................................8
APPLIANCE DESCRIPTION............................................................................................15
Models - Prestige 24 - 32 Solo / Excellence.......................................................................................................................15
Conguration in a System .......................................................................................................................................................15
TECHNICAL CHARACTERISTICS..................................................................................17
Combustion Characteristics ...................................................................................................................................................17
Gas Categories ...........................................................................................................................................................................17
Dimensions ...................................................................................................................................................................................18
Electrical Characteristics Prestige 24 - 32 Solo/Excellence........................................................................................ 20
Hydraulic Characteristics ........................................................................................................................................................ 22
Hydraulic Pressure Drop Curves of the Boiler................................................................................................................. 22
DHW Performance..................................................................................................................................................................... 22
Maximum Operating Conditions......................................................................................................................................... 22
Recommendations for the Prevention of Corrosion and Scaling in Heating Systems.................................... 23
G3 Requirements and Guidance - UK Only.......................................................................................................................24
INSTALL ATION ..............................................................................................................26
Safety Instructions for the Installation.............................................................................................................................. 26
Package Contents.......................................................................................................................................................................27
Tools Required for the Installation.......................................................................................................................................27
Boiler Installation - Wall Mounting.......................................................................................................................................27
Removal and Installation of the Front Panel....................................................................................................................27
Hydraulic Connections ............................................................................................................................................................ 28
Prestige Excellence - DHW connection ............................................................................................................................. 28
Heating Connection ................................................................................................................................................................. 28
DHW kit installation in Prestige Solo Boilers................................................................................................................... 29
Chimney Connection ............................................................................................................................................................... 30
Calculation of the Flue Pipe Length ....................................................................................................................................31
Gas Connection...........................................................................................................................................................................32
Conversion to Propane.............................................................................................................................................................32
Ball condensate Trap Installation..........................................................................................................................................33
CONFIGURATION AND SYSTEM SETUP.....................................................................34
Basic Conguration - Prestige 24-32 Solo: High Temperature Heating Circuit with Optional DHW Tank
and Control by Room Thermostat and Optional Outdoor Sensor.......................................................................... 34
Settings for the Basic Conguration, using the EZ Setup of the User Interface.................................................35
STARTING UP .................................................................................................................36
Safety Instructions for Starting up...................................................................................................................................... 36
Tools Required for Starting up.............................................................................................................................................. 36
Checks before Starting up...................................................................................................................................................... 36
Filling the System....................................................................................................................................................................... 36
Starting up the Boiler ................................................................................................................................................................37
Checking and Adjusting the Burner....................................................................................................................................37
MAINTENANCE..............................................................................................................38
Safety Instructions for the Boiler Maintenance.............................................................................................................. 38
Tools Required for Maintenance.......................................................................................................................................... 38
Boiler shut down for Maintenance...................................................................................................................................... 38
Periodic Boiler Maintenance Tasks...................................................................................................................................... 38
Draining the Boiler .....................................................................................................................................................................39
Removal, Check and Installation of the Burner Electrode ..........................................................................................39
Removal and Installation of the Burner ............................................................................................................................ 40
Torque Values.............................................................................................................................................................................. 40
Cleaning the Exchanger ...........................................................................................................................................................42
Restarting after Maintenance................................................................................................................................................42
LOCKING CODES ...........................................................................................................43
SERVICE LOG..................................................................................................................46
DECLARATION OF CONFORMITY...............................................................................47
ECODESIGN DATA..........................................................................................................47
PRODUCT FICHE............................................................................................................48

NOTE
This manual contains important information with respect to the installation, the starting up and the
maintenance of the appliance.
This manual must be provided to the user, who will read it carefully and keep it in a safe place.
We accept no liability should any damage result from the failure to comply with theinstructions
contained in this technical manual.
Essential recommendations for safety
• It is prohibited to carry out any modifications to the appliance without the
manufacturer’s prior and written agreement.
• The product must be installed by a qualified engineer, in accordance with
applicable local standards and regulations.
• The installation must comply with the instructions contained in this manual and
with the standards and regulations applicable to heating systems.
• Failure to comply with the instructions in this manual could result in personal
injury or a risk of environmental pollution.
• The manufacturer declines all liability for any damage caused as a result of
incorrect installation or in the event of the use of appliances or accessories that are
not specified by the manufacturer.
Essential recommendations for the correct operation of the appliance
• In order to ensure that the appliance operates correctly, it is essential to have it
serviced by a certified installer or maintenance contractor every year.
• In case of anomaly, please call your service engineer.
• Faulty parts may only be replaced by genuine factory parts.
General remarks
• The availability of certain models as well as their accessories may vary according to
markets.
• The manufacturer reserves the right to change the technical characteristics and
features of its products without prior notice.
• In spite of the strict quality standards that ACV applies to its appliances during
production, inspection and transport, faults may occur. Please immediately notify
your approved installer of any faults.
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If you smell gas:
- Immediately isolate the gas supply.
- Open windows and doors to ventilate the area.
- Do not use any electrical appliances and do not operate any switches.
- Immediately notify your gas supplier and/or your installer.
GENERAL RECOMMENDATIONS
SAFETY INSTRUCTIONS
Essential recommendations for safety
• Do not store any flammable or corrosive products, paint, solvents, salts, chloride
products and other detergent products near the appliance.
• Make sure that the condensate outlet is never obstructed and that a condensate
neutralisation system is installed if required.
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
supervised or unless they have been given instruction concerning the use of the
appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
General remarks
• The end user is only allowed to carry out the basic set-up operations mentioned in
"Boiler Setup Guide" on page 8, after he has received all relevant instructions from
the installer. Any other set-up must be carried out by an approved installer.
• If the end user misuses the installer code to access installer-specific parameters and
makes changes that cause a system failure, any warranty claim will be void.
• To get additional information on how to use the ACVMAX interface, refer to the installer-
specific settings and the detailed error codes, in the Installer's Handbook or the ACVMax
System Control manual , according to the product build*. Both manuals are available
from the website www.acv.com, under the "Documentation" section.
* The Installer’s Handbook is applicable to appliances manufactured from May 2016, starting from
Serial Number A071140.

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USER’S GUIDE
MEANING OF SYMBOLS
Symbols on the
packaging Meaning
Fragile
Keep dry
Keep standing, up
Danger of tipping over
Hand truck or pallet truck required for transport
Do not cut packaging to open
Do not stack more than 2 boxes
Symbols on the
appliance Meaning
Gas connection
Condensate trap (ball syphon)
Domestic Hot Water circuit
Primary circuit
Connection to the sewage system
Electricity
Alarm
Symbols in the manual Meaning
Essential recommendation for safety (of persons and equipment)
Essential recommendation for electrical safety (electrical hazard)
Essential recommendation for the correct operation of the appliance
or the system
General remark
Safety valve connected to the sewage system
Connection to the sewage system

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USER’S GUIDE
The part number(Code)and serial
number (N°) of the appliance are
indicated on its rating plate and
must be provided to ACV in case
of warranty claim. Failure to do
so will make the claim void.
BOILER MARKING
Location: Bottom face
Prestige 32 Solo
Prestige 24 Solo Prestige 24 Excellence
Prestige 32 Excellence

1 5
243
Boiler Protection
P3
DHW
P4
84°C
61°C
1
2
CH
Target = 85°C
Radiator icon: indicates that a cen-
tral heating call has been received.
A small number 1 or 2 indicates
which CH calls are active
Tap icon: indicates that a DHW call has
been received.
Circulator icons: indicate which circula-
tors are currently powered.
Status line: displays the current operat-
ing state of the boiler. See “Status Mes-
sages” on page 7.
Basic information. The user can
toggle the items using the LEFT
and RIGHT keys and view target,
Supply, Return, Domestic, Out-
door and System temperatures.
The boiler type is indicated at the top of the screen. The type and model are
factory preset*.
The boiler is represented in the centre of the Home Screen. Basic operating
information such as supply and return temperatures are displayed as well as
current burner status.
A ame symbol is displayed when the
unit is red. The ame size changes to
indicate the current ring rate.
* For boilers manufactured after May 2016, starting from S/N A071140
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USER’S GUIDE
CONTROL PANEL AND DISPLAY
Panel Description
1. Pressure gauge - Indicates the primary circuit pressure (min. 1 bar when cold).
2. ACVMAX LCD Display - It is the setup interface of the boiler and indicates the parameter values,
the error codes and the set-up status of the parameters. It displays a series of screens, each showing
information and/or icons. The main icons are detailed below.
3. Installer button - Allows the installer to access the menus of the ACVMAX controller to set up the
system.
4. Arrow keys and OK key - to browse through the screens of the ACVMAX controller, set up the boiler,
increase and decrease the displayed values and validate the selections and access the Easy set-up
screens. The OK key is also used to RESET the boiler after a locking (follow the instructions on the
screen).
5. ON/OFF master switch of the boiler - To turn the appliance ON and OFF.
Main settings of ACVMAX Display
• Screen backlight - it will illuminate when any button is depressed, and remain illuminated for ve
minutes.
• Screen contrast - it can be adjusted at the Home screen by pressing and holding the OK button, then
pressing and holding the LEFT button along with the OK button. Press the UP and DOWN button
to increase or decrease the contrast while holding the OK and LEFT buttons depressed. All buttons
must be released and the procedure performed again to switch between increasing and decreasing
contrast.
Typical items appearing on the Home screen:
Main Icons of ACVMAX display
Central Heating - indicates information related to the CH circuit.
DHW - indicates information related to the Domestic Hot Water circuit.
Home - to go back to the main menu screen.
Back - to go back to the previous screen.
Warm weather shutdown - displays on the home screen when the outdoor temperature reach-
es the Warm Weather Shutdown preset temperature.
Reset - to reset the system to the factory settings.
Parameters - to access to the setup of controller parameters (language, units, etc.).
Easy setup - Indicates parameters that can be accessed through the EZ setup.
CH/DHW operation - To enable/disable the concerned circuit.
Information - To get information on the boiler.

Low Water
Water pressure has fallen below
0.7 bar. Increase pressure
to normal range.
If problem persists,
call for service
E37
Lockout reference code. Refer to “In case of Prob-
lem...” on page 8 for more information.
Body text. The rst sentence describes the lockout,
the second sentence gives a possible cure, and the
third tells how to reset the lockout.
Lockout message. Refer to “In case of Problem...”
on page 8 for more information.
Stand-by
84°C
61°C
Target = --
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USER’S GUIDE
LOCKOUT SCREEN
If a problem occurs, the Lockout screen replaces the Home screen. The backlight also remains on as long
as the problem is not solved. Pressing any arrow button will return to the Home screen.
Using the code located in the right bottom corner of the screen, troubleshoot the problem, either with
the table located in paragraph “In case of Problem...” on page 8, or with the table “Locking codes” on
page 43 (only for installers).
STANDBY SCREEN
This screen is displayed at start-up. It indicates that the Prestige is ready to respond when a demand is
received.
STATUS MESSAGES
Stand-by Indicates that the Prestige is ready to respond when a demand is received.
CH Demand A central heating call has been received.
DHW Demand A domestic hot water call has been received.
CH / DHW Demand Central heating and domestic hot water calls are being received simultaneous-
ly. Both calls are being satised simultaneously because domestic hot water
priority has been disabled.
DHW Priority Central heating and domestic hot water calls are being received simultaneous-
ly. Domestic hot water call is being satised rst because it has priority over
central heating calls.
Priority Timeout Central heating and domestic hot water calls are being received simultaneous-
ly. The domestic hot water priority time limit has been exceeded. Priority will
now switch back and forth between central heating and domestic hot water
calls until one call is satised.
External Demand An external modulation call has been received.
Slave Operation The Prestige is a slave in a cascade system.
Manual Operation The burner or circulators have manually been enabled in the Installer Menu.
CH Burner Delay The burner will not re until the call blocking time has elapsed.
DHW Burner Delay The burner will not re until the call blocking time has elapsed.
CH Setpoint Reached The burner is not red because the supply/system water temperature exceeds
the setpoint. The central heating circulator continues to operate and the burner
will re again once the supply/system water temperature drops below the set-
point.
DHW Setpoint Reached The burner is not red because the supply/system water temperature exceeds
the setpoint. The domestic circulator continues to operate and the burner will
re again once the supply/system water temperature drops below the setpoint.
CH Post Pump The central heating circulator is running to remove heat from the Prestige at the
completion of a call.
DHW Post Pump The domestic hot water circulator is running to remove heat from the Prestige
at the completion of a call.
Freeze Protection The burner is red because the freeze protection feature has been activated.
Freeze protection will end once the supply/system water temperature is raised
to16°C.
Boiler Protection The burner ring rate is being reduced because of an excessive dierence be-
tween the boiler supply and return temperatures. The ring rate will begin in-
creasing once the temperature dierence is less than 25°C.
Lockout Description The lockout which currently has the Prestige shut down is displayed

* In case of complex systems, the setup must be performed by an approved installer using the Installer’s Handbook or the ACVMax
System Control manual, according to the software build (refer to page 3 for more information).
Boiler Protection
P3
DHW
P4
84°C
61°C
1
2
CH
Target = 85°C
EZ Setup
Heating EZ Setup
DHW EZ Setup EZ Setup Reset Display EZ Setup
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USER’S GUIDE
BOILER SETUP GUIDE
The main parameters of the Prestige boilers can be set up using the EZ (easy) setup function of the ACV-
Max controller. The EZ setup function allows the user/installer to quickly setup the appliance for immedi-
ate operation according to the system conguration*.
General remarks
• To navigate on the screen, use the UP, DOWN, LEFT and RIGHT keys, then the OK key
to validate a selection. A selection is marked by a black background under the selected
icon/text.
• To increase/decrease values, use the UP and DOWN keys or the LEFT and RIGHT keys
according to the situation.
WHAT TO CHECK ON A REGULAR BASIS
Essential recommendations for the correct operation of the appliance
ACV recommends to check the system at least every 6 months as follows:
• Check that the system water pressure is at least 1 bar when cold. If the pressure drops
below 0.7 bar, the built-in pressure sensor blocks the appliance until the pressure
exceeds 1.2 bar.
• If it is required to top up the system to maintain the minimum recommended water
pressure, always turn the appliance off and only add small amounts of water at a time. If a
large amount of cold water is added in a hot boiler, the boiler can be damaged definitively.
• If the system needs to be refilled repeatedly with water, please contact your installer.
• Check that there is no water on the floor under the boiler. If there is, please call your installer.
• If a condensate neutralisation system is installed, check it and have it cleaned regularly.
• Check regularly that there is no error message (lockout) on the screen. A typical lockout
screen is explained on the previous page. Refer also to the Troubleshooting table below
or call your installer as required.
IN CASE OF PROBLEM...
Check the list of faults and corresponding codes below to get the solution(s). If no solution is provided here, please
contact your installer who will determine the correct solution by referring to“Locking codes”on page 43.
Fault
code Problem Possible Cause(s) Solution
-
The appliance does
not turn on when
pressing the ON/OFF
Master switch
No power supply
Check the power supply and that
the appliance power plug is con-
nected to the network.
E 01 Failed ignition The burner failed to light af-
ter 5 ignition attempts Check gas supply to the boiler.
E 13 Reset limit reached Resets are limited to 5 every
15 minutes
Turn unit OFF and ON to resume
normal operation.
E 34 Low voltage
Line voltage has fallen be-
low an acceptable operating
level
The boiler will automatically reset
once line voltage returns to normal.
E 37 Low Water
Water pressure has fallen
below an acceptable oper-
ating level (0.7 bar)
Rell the system to reach a normal
range pressure.The boiler will auto-
matically reset once water pressure
returns to normal.
E 94 Internal Display Fault Display memory error Turn appliance o and on to re-
sume normal operation.

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USER’S GUIDE
Select CH Demand
Thermostat & Setpoint
Constant & Setpoint
0 - 10 V Modulation Signal
CH1 Setpoint
82°C
20°C 87°C
CH2 Setpoint
60°C
20°C 87°C
EZ Setup Complete
Heating EZ setup is complete.
Additional changes can be made in
the Installer Menu if required.
Press OK to return to EZ Setup Menu
EZ Setup
Select CH Demand
Thermostat & Setpoint
Constant & Setpoint
0 - 10 V Modulation Signal
Select CH Demand
Thermostat & Setpoint
Constant & Setpoint
0 - 10 V Modulation Signal
EZ Setup Complete
Heating EZ setup is complete.
Additional changes can be made in
the Installer Menu if required.
Press OK to return to EZ Setup Menu
Heating EZ Setup
0 - 10V Modulation Signal - This option allows the Prestige ring rate to be controlled by an external control system.
Refer to the Installer’s Handbook , Volume 1 OR the ACVMax System Control manual for more information.
CH1 Setpoint prompts to enter the xed setpoint for a CH1 heating call when a
Setpoint option is chosen in Select CH Demand. Press on LEFT or RIGHT button
to adjust the required temperature setpoint then press OK to store the setting.
The CH2 Setpoint screen appears.
CH2 Setpoint prompts to enter the xed setpoint for a CH2 heating call when a
Setpoint option is chosen in Select CH Demand. Press on LEFT or RIGHT button
to adjust the required temperature setpoint then press OK to store the setting
and complete the Heating setting.
CH1 Default: 82°C.
CH2 Default: 60°C
Select CH Demand prompts the installer to select how a CH Demand is generated. There are three Select CH Demand options,
among which the installer must make a selection.
Thermostat & Setpoint - This option is only displayed when no outdoor temperature sensor is connected. A central heating call from
a thermostat or zone panel will enable the Prestige and the setpoint will be xed for central heating calls. When Thermostat & Setpoint
is selected, the CH1 Setpoint screen appears.
Constant & Setpoint - The Prestige will maintain setpoint without an external CH call from a thermostat or zone panel. The setpoint
will be xed for CH calls. When Constant & Setpoint is selected, the CH1 Setpoint screen appears.
Heating Easy setup (no outdoor sensor connected)
• To navigate on the screen, use the UP, DOWN, LEFT and RIGHT keys, OK
• Use the OK key to validate a selection.
• To increase/decrease values, use the UP and DOWN keys, or LEFT and RIGHT, according to the situation

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USER’S GUIDE
Select CH Demand
Thermostat & Outd. Curve
Constant & Outdoor Curve
Constant & Setpoint
0 - 10 V Modulation Signal
Select CH Demand
Thermostat & Outd. Curve
Constant & Outdoor Curve
Constant & Setpoint
0 - 10 V Modulation Signal
82°C
27°C
18°C -12°C
Current Settings
Select CH1 Outd. Curve
MAX
60°C
27°C
18°C -12°C
Current Settings
Select CH2 Outd. Curve
Warm Weather Shutdown
O
O 25°C
EZ Setup Complete
Heating EZ setup is complete.
Additional changes can be made in
the Installer Menu if required.
Press OK to return to EZ Setup Menu
EZ Setup
Heating EZ Setup
Heating Easy Setup (outdoor sensor connected)
Select CH Demand prompts the installer to select how a CH Demand is generated. There are several Select CH Demand options,
among which the installer must make a selection.
Thermostat & Outd. Curve – This option is only displayed when the outdoor temperature sensor is connected. A central heating call
from a thermostat or zone panel will enable the boiler and the setpoint will vary with the outdoor temperature for central heating
calls..
Constant & Outdoor Curve - This option is only displayed when the outdoor temperature sensor is connected. The Prestige will
maintain the setpoint without an external call from a thermostat or zone panel. The setpoint will vary with the outdoor temperature
for central heating calls.
Select CH1 Outd. Curve prompts to select an outdoor curve for a CH1 heating call when an Outdoor Reset option is chosen in Select
CH Demand. Outdoor curve presets are available to cover most applications. The outdoor curve can also be adjusted to any desired
settings in the Installer Menu (refer to Installer’s Handbook or the ACVMax System Control manual, according to the software build
(refer to page 3 for more information)).
Press on UP or DOWN button to select the outdoor reset curve appropriate for the type of heating system, then press OK to store the setting.
Default: Systems with a temperature between 27°C and 82 °C.
Select CH2 Outd. Curve prompts to select an outdoor curve for a CH2 heating call when an Outdoor Reset option is chosen in Select
CH Demand. Outdoor curve presets are available to cover most applications. The outdoor curve can also be adjusted to any desired
settings in the Installer Menu (refer to Installer’s Handbook or the ACVMax System Control manual, according to the software build
(refer to page 3 for more information)).
Press on UP or DOWN button to select the outdoor reset curve appropriate for the type of heating system, then press OK to store the setting.
Default: Systems with a temperature between 27°C and 60 °C
Warm Weather Shutdown allows to enter an optional outdoor temperature at which to disable the central
heating function. The Prestige will continue to respond to a domestic hot water call or a 0- 10V Modulation
Signal when the outdoor temperature exceeds the Warm Weather Shutdown Temperature setting.
Press the LEFT or RIGHT buttons to adjust the Warm Weather Shutdown Temperature then press the OK
button to store the setting and complete the Heating setting.
The Warm Weather Shutdown icon ( ) is displayed on the home screen when the outdoor temperature
reaches the Warm Weather Shutdown preset temperature.
Default: OFF.

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USER’S GUIDE
Select CH Demand
Thermostat & Outd. Curve
Constant & Outdoor Curve
Constant & Setpoint
0 - 10 V Modulation Signal
CH1 Setpoint
82°C
20°C 87°C
CH2 Setpoint
60°C
20°C 87°C
EZ Setup Complete
Heating EZ setup is complete.
Additional changes can be made in
the Installer Menu if required.
Press OK to return to EZ Setup Menu
EZ Setup Complete
Heating EZ setup is complete.
Additional changes can be made in
the Installer Menu if required.
Press OK to return to EZ Setup Menu
Select CH Demand
Thermostat & Outd. Curve
Constant & Outdoor Curve
Constant & Setpoint
0 - 10 V Modulation Signal
EZ Setup
Heating EZ Setup
Warm Weather Shutdown
O
O 25°C Refer to page 9 for screen descriptions
Refer to page 9 for screen descriptions

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USER’S GUIDE
EZ Setup
DHW EZ Setup Select DHW Demand
Thermostat
Sensor
Select DHW Demand
Thermostat
Sensor
DHW Priority Timeout
O
O 120 min.
DHW
Boiler Setpoint
75°C
35°C 87°C
DHW Setpoint
60°C
20°C 75°C
EZ Setup Complete
DHW EZ setup is complete.
Additional changes can be made in
the Installer Menu if required.
Press OK to return to EZ Setup Menu
DHW Setup
Select DHW Demand prompts the installer to select how a DHW Demand is generated. There are two Select DHW Demand options,
among which the installer must make a selection.
When Thermostat is selected in Select DHW Demand, a domestic hot water call from an aquastat or dry contact switch will enable
the Prestige with a xed setpoint for a domestic hot water call..
When Sensor is selected in Select DHW Demand, it requires the use of an optional Indirect Water Heater Sensor. The Prestige monitors
the DHW storage temperature and generates a DHW call whenever the temperature drops below the DHW storage setpoint by 3°C.
Default : Thermostat (Prestige Solo)
Sensor (Prestige Excellence)
DHW Boiler Setpoint prompts to enter the xed boiler setpoint temperature during a hot water call when the Thermostat option is
selected.
Press on LEFT or RIGHT button to adjust the required temperature setpoint then press OK to store the setting.
Default: 75°C.
DHW Storage Setpoint prompts to enter the DHW storage setpoint temperature.
Press on LEFT or RIGHT button to adjust the required temperature setpoint then press OK to store the setting.
Default: 60°C.
The DHW Storage Setpoint will automatically be set 15°C higher than the DHW Setpoint setting
DHW Priority Timeout prompts to enter an optional time limit that a domestic hot water call has priority
over central heating call.
Press on LEFT or RIGHT button to adjust the required timeout value, if required, then press OK to store the
setting and complete the DHW setting.
Default: O

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USER’S GUIDE
Starting from the Home screen :
EZ Setup
EZ Setup Reset EZ Setup Reset
Press OK to restore factory settings,
any other button to keep current
settings.
EZ Setup
Display EZ Setup
English
Français
Nederlands
Español
Italiano
Deutsch
Select Unit
Fahrenheit
Celsius
Easy Setup Reset
EZ Setup Reset allows to reset all EZ
setup settings back to the original factory
defaults.
Follow the on-screen instructions to reset
all EZ setup settings.
Display Easy Setup
Display EZ Setup allows to select the
interface language (Nine dierent languag-
es: English, French, Dutch, Spanish, Italian,
German, Czech, Polish and Russian).
Press on UP or DOWN button to select the
required language then press OK to store the
setting.
Display EZ Setup allows to select the inter-
face temperature unit.
Press on UP or DOWN button to select the
required unit then press OK to store the set-
ting.
Boiler Protection
P3
DHW
P4
84°C
61°C
1
2
CH
Target = 85°C
EZ Setup
CH / DHW Operation Boiler Information Select Language
Selecting this icon
and validating the
selection with the
OK key allows to
access directly to the
language selection
page (see on the left)

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USER’S GUIDE
CH / DHW Operation Heating enabled DHW enabled
Boiler Information
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Boiler Information
Boiler Status Standby
Heating Call No
DHW Call No
Boiler Firing Rate --
Ionization current μA
Boiler Setpoint --
Lockout History
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Lockout History
1. Blower speed 5h ago
2. DHW Sensor Open 2h ago
3. Sensor Drift 25 h ago
4. No error 27 h ago
5. No error 27 h ago
6. No error 27 h ago
Lockout Details
Blower speed
Boiler Status --
Heating Call --
DHW Call --
Boiler Firing Rate 44%
Ionization current 44μA
Boiler Information
CH/DHW Operation
CH/DHW Operation provides a simple way to enable/disable either the CH or the DHW function of the Prestige.
Press on LEFT or RIGHT button to select the object (CH or DHW icon), then press OK to toggle between the ena-
bled/disabled status. The status of the circuit is displayed at the top of the screen.
Using the arrow keys, select the HOME or RETURN icon at the bottom of the screen to go back either to the home
page or to the previous screen respectively.
Default for Prestige Solo:
Default for Prestige Excellence:
DHW enabled
Boiler Information screen provides real time operating information of the Prestige. Each line contains an infor-
mation item followed by its current value. Six lines are displayed on the screen at one time.
Press on UP or DOWN button to scroll through the items. For more information, refer to the Installer’s Handbook
or the ACVMax System Control manual, according to the software build (refer to page 3 for more information)
of the Prestige boilers.
Lockout History records the last eight lockouts. Six lines are displayed on the Lock-
out History screen at one time. Each line contains a lockout description followed
by how long ago the lockout occurred.
Press on UP or DOWN button to scroll through the items and on OK to select any of
them and get more details through the Lockout Details screen. For more informa-
tion, refer to the Installer’s Handbook of the Prestige boilers.
Boiler Information
Heating enabled

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APPLIANCE DESCRIPTION
MODELS  PRESTIGE 24  32 SOLO / EXCELLENCE
The Prestige is a wall-hung condensing boiler meeting the requirements of current“HR-Top”standards in
Belgium. The boiler is certied compliant with “EC” standards as a connected appliance: C13(x) - C33(x) -
C43(x) - C53(x) - C63(x) - C83(x) - C93(x), but it can also be connected as an open appliance in category B23
or as an appliance of category B23P, which can operate with a positive pressure.
The Solo series is a system boiler, that can be operated in combination with the whole range of ACV
Domestic Hot Water (DHW) tanks, using a specic kit, while the Excellence series has a built-in DHW tank
(54L) and can work as a standalone appliance providing both heating and domestic hot water.
The boiler features a built-in frost protection mechanism: as soon as the ow temperature [NTC1 probe]
drops below 7°C, the central heating pumps are activated. As soon as the ow temperature is at 5°C, the
burner starts up until the ow temperature rises above 15°C. The pumps continue to run for around 10
minutes. The function can be enabled or disabled through the installer menu. When the frost protection
is disabled, only the pumps operate.
An anti-freeze function is also available if an outdoor temperature sensor is connected, the pumps are ac-
tivated when the outside temperature drops below the threshold dened through the Freeze protection
function in the installer menu. In order to enable the Prestige boiler to protect the whole system against
freezing, all the valves of the radiators and the convectors should be completely open
CONFIGURATION IN A SYSTEM
The Prestige boilers can be setup in dierent types of systems, either high or low temperature, or both,
with or without Domestic Hot Water tank.
It is up to the installer to determine the best solution and reach the results the user is expecting.
One basic conguration is shown in this manual (see “Conguration and system set-up” on page 34),
with the required accessories, required electrical connections and ACVMAX setup using the EZ setup
function.
Additional congurations requiring a more advanced setup are shown in the Installer’s Handbook or the
ACVMax System Control manual (according to the software build of the ACVMax, please refer to page 3
for more information). The setup of those systems must be made exclusively by the installer using the
installer code.
For any other conguration that is not mentioned in either manuals, please contact your ACV represent-
ative. 1. Concentric chimney connection 60
/100mm with measuring element
2. Chimney tube
3. 12 liter expansion vessel (heating circuit)
4. Stainless steel heat exchanger
5. Connection for external DHW tank (kit
to be installed - stored under the boiler
body))
6. High eciency circulator pump
7. Heating return
8. Control panel with display and pressure
gauge
9. Heating supply
10. Exchanger return multifunctional quick- con-
nection block (see detail view on next page).
11. Electrical panel (with spare fuses at the back).
12. Built-in 3-way valve
13. Gas valve assembly
14. Air inlet
15. Auto air vent (heating circuit)
16. Flame sight glass
17. Insulated casing
18. Modulating air/gas premix burner with fan
PRESTIGE 24  32 SOLO

21 13
18
24 5
6
7
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APPLIANCE DESCRIPTION
1. Concentric chimney connection 60 /100mm
with measuring element
2. Chimney tube
3. DHW tank air vent (manual)
4. Heating supply to DHW tank
5. 12 liter expansion vessel (heating circuit)
6. Internal hot water tank (54 L)
7. Stainless steel heat exchanger
8. High eciency circulator pump
9. Heating return from DHW tank
10. Heating return
11. Control panel with display and pressure gauge
12. Heating supply
13. Exchanger return multifunctional qui-
ck-connection block (see details opposite).
14. Electrical panel (with spare fuses at the back).
15. Built-in 3-way valve
16. Gas valve assembly
17. Air inlet
18. Auto air vent (heating circuit)
19. Flame sight glass
20. Modulating air/gas premix burner with fan
21. Insulated casing
1. Multifunctional quick-coupling block
2. Expansion vessel connection
3. Retaining pin
4. Quick-connection block body
5. Water pressure sensor
6. NTC sensor (12kΩ)
7. Retaining clip
8. Safety valve
9. Manometer check-valve
PRESTIGE 24  32 EXCELLENCE DETAIL OF MULTIFUNCTIONAL QUICKCONNECTION BLOCK

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TECHNICAL CHARACTERISTICS
COMBUSTION CHARACTERISTICS
PRESTIGE
Solo Excellence
24 32 24 32
G20/G25 G31 G20/G25 G31 G20/G25 G31 G20/G25 G31
Input (PCI)
max kW 24 24 32 32 24 24 32 32
min kW 4.0 4.3 4.9 5.0 4.0 4.3 4.9 5.0
Output at 100%
(80/60°C) kW 23.3 23.3 31.0 31.0 23.3 23.3 31.0 31.0
(50/30°C) kW 25.5 25.5 33.6 33.6 25.5 25.5 33.6 33.6
Eciency at 100%
(80/60°C) %97. 0 97. 0 97. 0 97.0 97.0 97.0 97. 0 97.0
(50/30°C) %106.1 106.1 105.0 105.0 106.1 106.1 105.0 105.0
Eciency at 30% load (EN677) %109.0 109.0 109.0 109.0 109.0 109.0 109.0 109.0
NOx (Class 5) Weighted mg/kWh 38.0 –38.0 –38.0 –38.0 –
CO Max. output mg/kWh 50 94 88 126 50 94 88 126
CO2(without front
panel)
Max. output %CO28.7 10.5 8.8 10.4 8.7 10.5 8.8 10.4
Min. output %CO28.4 10.0 8.2 10.1 8.4 10.0 8.2 10.1
CO2(closed front
panel)
Max. output %CO28.9 10.7 9.0 10.6 8.9 10.7 9.0 10.6
Min. output %CO28.6 10.2 8.4 10.3 8.6 10.2 8.4 10.3
Max gas ow rate
G20/G25
G20 (20 mbar) m³/h 2.54 –3.39 –2.54 –3.39 –
G25 (25 mbar) m³/h 2.95 –3.94 –2.95 –3.94 –
Max. gas ow rate
G31
30/37/50 mbar Kg/h –1.87 –2.49 –1.87 –2.49
30/37/50 mbar m3/h –0.98 –1.31 –0.98 –1.31
Temp of ue gases
Rated °C 80 80 80 80 80 80 80 80
Max. °C 110 110 110 110 110 110 110 110
Min. °C 30 30 30 30 30 30 30 30
Average temp.
of combustion
products
DHW mode °C – – – – 80 80 80 80
Mass ow rate* of
ue gases
Rated g/s 12.14 10.62 16.02 15.77 12.14 10.62 16.02 15.77
at min output g/s 2.02 1.90 2.45 2.46 2.02 1.90 2.45 2.46
* Mass flow rate values were calculated for G20 and G31 with an air factor of 1.3.
GAS CATEGORIES
Gas type G20 G25 G20 G25 G31
Pressure (mbar) 20 20 25 20 25 30 37 50
Country code Category
AT II2H3P
BE
I2E(S)
I2E(R)
I3P
CH II2H3P
CZ II2H3P
DE II2E3P
II2ELL3P
ES II2H3P
FI II2H3P
FR II2Er3P
GB II2H3P
GR II2H3P
HR II2H3P
IE II2H3P
IT II2H3P
LT II2H3P
LU II2E3P
LV I2H
NL II2EK3P*
II2L3P
PL II2E3P
PT II2H3P
RO II2H3P
SI II2H3P
SK II2H3P
* G25.3

Prestige 24 - 32 Solo Prestige 24 - 32 Excellence
CH
Target= 85°C
BoilerProtection
P3
DHW
P4
84°C
61°C
1
2
278 mm
440 mm
1014 mm
926 mm
100 mm
60mm
84 mm
96.5 mm
141 mm
246 mm
352 mm
429 mm
102.5 mm
153,5 mm
280 mm
341 mm
502 mm
141 mm
CH
Target= 85°C
BoilerProtection
P3
DHW
P4
84°C
61°C
1
2
69.5 mm
104 mm 163 mm
220.5 mm
226 mm
289.5 mm
427.5 mm
114 mm
229 mm
341 mm
441 mm
541 mm
632 mm
1086 mm
998 mm
100 mm 600 mm
141 mm
216 mm
60mm
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TECHNICAL CHARACTERISTICS
DIMENSIONS
PRESTIGE SOLO PRESTIGE EXCELLENCE
24 32 24 32
[M] “1 1 1 1
[M] “— — 3/4 3/4
[M] “3/4 3/4 3/4 1
Min. of ue pipe mm 60 60 60 60
Drained weight Kg 54 54 92 92

A
D
B C
101,6 mm
101,6 mm
48,4 mm
53,2 mm
53,2 mm
48,4 mm
960 mm
406 mm
406 mm
888 mm
Prestige 24-32 Solo Prestige 24-32 Excellence
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TECHNICAL CHARACTERISTICS
CLEARANCE
For boiler mounting on the wall, refer to "Boiler Installation - Wall Mounting" on page 27.
Min clearance PRESTIGE 2432 SOLO PRESTIGE 2432 EXCELLENCE
Amm 300 300
Bmm 25 25
Cmm 25 25
Dmm 220 110 0
WALL MOUNTING  DIMENSIONS

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TECHNICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS PRESTIGE 24  32 SOLO/EXCELLENCE
PRESTIGE
Solo Excellence
Main Characteristics 24 32 24 32
Rated voltage V~ 230 230 230 230
Rated frequency Hz 50 50 50 50
Electrical consumption Max. W 89 94 89 94
Min. W 15 15 15 15
Electrical consumption at
30% load W17 17 17 17
Electrical consumption in
standby W5 5 5 5
Rated current (Fuse) A 16 16 16 16
Class IP X4D X4D X4D X4D
Key
1. 230 V power supply plug
2. Ground
3. ON/OFF master switch
4. Gas valve rectied
5. Burner power supply
6. Terminal block for optional items
: Alarm (ERR)
: CH circuit circulator pump (CH)
: DHW circuit circulator pump (DHW)
7. PWM modulating pump
8. Stepper motor for 3-way valve
9. Burner PWM plug
10. NTC5 ue gas temperature sensor
11. NTC2 return sensor
12. NTC1 supply sensor
13. NTC for low temperature circuit
For low temp circuit operation, black wires from X3, terminals 1 & 6 must be routed to
X20, terminals 3 & 4.
14. High limit switch
15. Low water pressure sensor
16. PCB (Display)
17. ACVMAX programmation plug
18. A & B Modbus (option)
19. NTC3 DHW sensor (option for Prestige 24 - 32 Solo)
20. NTC4 outdoor temperature sensor (option)
21. Room thermostat 1 (option)
22. 0-10 Volt (option)
23. Room thermostat 2 (option)
24. Connection for interface control unit
25. Ignition and ionization cable
26. 5AT slow-blow fuse (3x) for internal and optional circuits*
* 5AT slow-blow fuse (2x) for internal circuits and connection of CH, DHW and Flame output + 5AT slow-blow fuse (1x) for connection of
Alarm, P3 and P4 (connector P14)
2 spare 5AT slow-blow fuses are located on the back side of the electrical box, for fuse replacement, if required.
230 VAC OUTPUT !
The power cord may only be replaced by a genuine ACV spare part, P/N 257F1180.