ACV Prestige Solo 50 Manual

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42 - 50 - 75 - 100 - 120 Solo
Prestige
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
for the Installer and the User

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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 42 - 50 - 75 - 100 - 120 Solo..................................................................................................................15
TECHNICAL CHARACTERISTICS..................................................................................16
Dimensions ...................................................................................................................................................................................16
Clearance .......................................................................................................................................................................................17
Wall mounting - dimensions ..................................................................................................................................................17
Combustion Characteristics ...................................................................................................................................................18
Gas Categories.............................................................................................................................................................................19
Electrical Characteristics Prestige 42 - 50 - 75 Solo....................................................................................................... 20
Electrical Characteristics Prestige 100 - 120 Solo ......................................................................................................... 22
Hydraulic Characteristics .........................................................................................................................................................24
Hydraulic Pressure Drop Curve of the Boiler....................................................................................................................24
Maximum Operating Conditions..........................................................................................................................................24
Recommendations for the Prevention of Corrosion and Scaling in Heating Systems.................................... 25
INSTALL ATION ..............................................................................................................26
Safety Instructions for the Installation .............................................................................................................................. 26
Package Contents...................................................................................................................................................................... 26
Tools Required for the Installation...................................................................................................................................... 26
Boiler Installation - Wall Mounting.......................................................................................................................................27
Heating Connection ..................................................................................................................................................................27
Chimney Connection ............................................................................................................................................................... 28
Calculation of the Flue Pipe Length ................................................................................................................................... 29
Removal and Installation of the Front and Top Panels................................................................................................ 30
Electrical Connection............................................................................................................................................................... 30
Gas Connection...........................................................................................................................................................................31
Conversion to Propane and G25 Natural Gas ..................................................................................................................31
Ball condensate Trap Installation..........................................................................................................................................32
CONFIGURATION AND SYSTEM SETUP.....................................................................33
System Congurations..............................................................................................................................................................33
Cascade ..........................................................................................................................................................................................33
Prestige Box (available in 2016).............................................................................................................................................33
Basic Conguration - Prestige 42 - 50 - 75 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 Heating Circuit....................................................................................................................................................... 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 Heating Circuit of the Boiler.........................................................................................................................39
Removal, Check and Installation of the Burner Electrode ..........................................................................................39
Removal and Installation of the Burner ............................................................................................................................ 40
Cleaning the Exchanger ...........................................................................................................................................................42
Restarting after Maintenance................................................................................................................................................42
Torque Values...............................................................................................................................................................................42
LOCKING CODES ...........................................................................................................43
SERVICE LOG ..................................................................................................................46
DECLARATION OF CONFORMITY...............................................................................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 boiler System Control manual.

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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
Heating circuit
Domestic Hot Water circuit
Electricity
Alarm
Symbols in the
manual Meaning
Essential recommendation for safety (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

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USER’S GUIDE
The part number(Code)andserial
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 50 Solo
Prestige 42 Solo Prestige 75 Solo
Prestige 100 Solo Prestige 120 Solo

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 Prestige 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.
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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.
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 level has fallen below an
acceptable operating level.
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 Lockout code, refer to
“Locking codes”on page 43.
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 «System Control» manual provided
with the appliance.
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
Heating Easy setup (no outdoor sensor connected)
Select CH Demand
Thermostat & Setpoint
Constant & Setpoint
0 - 10 V Modulation Signal Select CH Demand prompts the installer to select how a CH Demand is generated. There are several Select CH Demand options, among which the in-
staller must make a selection.
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 90°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
Thermostat & Setpoint - This option is only displayed when no outdoor temper-
ature sensor is connected. A central heating call from a thermostat or zone pan-
el will enable the Prestige and the setpoint will be xed for central heating calls.
When Thermostat & Setpoint is selected, the CH1 Setpoint screen appears.
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
Thermostat & Setpoint
Constant & Setpoint
0 - 10 V Modulation Signal
CH1 Setpoint
82°C
20°C 87°C
CH2 Setpoint
60°C
20°C 90°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
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.
See description above for CH1 Setpoint and CH2 Setpoint screens
Press on LEFT or RIGHT button to adjust the required temperature setpoint
then press OK to store the setting and complete the Heating setting.
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
0 - 10V Modulation Signal - This option allows the Prestige ring rate to be controlled by an external control system.
Refer to System Control manual for more information.

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USER’S GUIDE
Heating Easy Setup (outdoor sensor connected)
Select CH Demand
Thermostat & Outd. Curve
Constant & Outdoor Curve
Constant & Setpoint
0 - 10 V Modulation Signal
Select CH Demand prompts the installer to select how a CH Demand is generated. There are several Select CH Demand options, among which the in-
staller must make a selection.
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
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.
Select CH1 Outd. Curve prompts to select an outdoor curve for a CH1 heating call when an Out-
door 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 System Control manual).
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
60°C
27°C
18°C -12°C
Current Settings
Select CH2 Outd. Curve Select CH2 Outd. Curve prompts to select an outdoor curve for a CH2 heating call when an Out-
door 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 System Control manual).
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
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
WarmWeather 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 theWarm 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 WarmWeather Shutdown icon ( ) is displayed on the home screen when the outdoor tempera-
ture reaches the Warm Weather Shutdown Temperature.
Default: OFF.

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USER’S GUIDE
Heating Easy Setup (outdoor sensor connected - Cont’d)
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
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
Constant & Outdoor Curve - This op-
tion is only displayed when the outdoor
temperature sensor is connected. The
Prestige will maintain the setpoint with-
out an external call from a thermostat or
zone panel. The setpoint will vary with
the outdoor temperature for central
heating calls.
Refer to previous page for other screen
descriptions.
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 90°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
Refer to page 9 for screen descriptions
Select CH Demand
Thermostat & Outd. Curve
Constant & Outdoor Curve
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
Refer to page 9 for screen descriptions

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USER’S GUIDE
DHW Setup
Select DHW Demand
Thermostat
Sensor
Boiler
DHW Setpoint
75°C
35°C 87°C
When Thermostat is selected in Select DHW Demand, a domestic hot water call from an aquastat or dry con-
tact switch will enable the Prestige with a xed setpoint for a domestic hot water call.
Boiler DHW 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 Priority Timeout
O
O 120 min.
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 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 set-
ting and complete the DHW setting.
Default: O
Select DHW Demand
Thermostat
Sensor
DHW
Setpoint
60°C
20°C 80°C
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 temper-
ature drops below the DHW storage setpoint by 3°C.
DHW 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 Boiler DHW Setpoint will automatically be set 15°C higher than the DHW Storage Setpoint
setting
DHW Priority Timeout
O
O 120 min.
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
See menu description above.

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USER’S GUIDE
Easy Setup Reset
EZ Setup Reset
Press OK
to restore factory settings,
any other button
to keep current settings.
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
Select Language
English
Français
Nederlands
Display EZ Setup allows to select the interface language.
Press on UP or DOWN button to select the required language
then press OK to store the setting.
Select Unit
Fahrenheit
Celsius Display EZ Setup allows to select the interface temperature unit.
Press on UP or DOWN button to select the required unit then press OK to
store the setting.
Boiler Protection
P3
DHW
P4
84°C
61°C
1
2
CH
Target = 85°C
EZ Setup
Starting from the Home screen :
CH / DHW Operation Boiler Information
CH/DHW Operation Boiler Information

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USER’S GUIDE
CH/DHW Operation
Heating enabled DHW enabled
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 enabled/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:
Heating enabled
Boiler Information
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 --
Boiler Information screen provides real time operating information of the Prestige. Each line contains an information item followed by its current
value. Six lines are displayed on the screen at one time.
Press on UP or DOWN buttonto scroll through theitems. For more information, refer to the System Control manual provided with the Prestige boiler.
Boiler Information
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Lockout History
1. Low water 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 History records the last eight lockouts. Six lines are displayed on the Lockout History screen at one time. Each line contains a lockout de-
scription 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. For more information, refer to the
System Control manual provided with the Prestige boiler.

Prestige 42 - 50 - 75 Solo Prestige 100 - 120 Solo
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4
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6
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8
9
10
11
12
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16 17
12
1 2 3
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6
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410
9
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11
5
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APPLIANCE DESCRIPTION
MODELS  PRESTIGE 42  50  75  100  120 SOLO
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 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.
1. Concentric chimney connection 100
/150mm with measuring element
2. Chimney tube
3. Modulating Air/gas premix burner
4. Gas pressure switch
5. Air inlet
6. Condensate recovery dish
7. Heating return
8. Safety valve
9. Control panel with display and pressure gauge
10. Pressure sensor
11. Electrical panel.
12. Stainless steel heat exchanger
13. Heating supply
14. Auto air vent
15. Flame sight glass
16. Insulated casing
17. Gas valve

Prestige 42 - 50 - 75 Solo Prestige 100 - 120 Solo
CH
Target= 85°C
BoilerProtection
P3
DHW
P4
84°C
61°C
1
2
392 mm
440 mm
1014 mm
926 mm
150 mm
100 mm
65 mm
177 mm
316 mm
437 mm
453 mm
48 mm
173 mm
288 mm
357 mm
502 mm
178 mm
CH
Target= 85°C
BoilerProtection
P3
DHW
P4
84°C
61°C
1
2
87 mm
178 mm 220 mm
300 mm
371mm
410 mm
364 mm
397 mm
551 mm
632 mm
1086 mm
998 mm
150 mm 600 mm
132 mm
134 mm
100 mm
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TECHNICAL CHARACTERISTICS
PRESTIGE SOLO
42 50 75 100 120
[M] “5/4 5/4 5/4 1 1/2 1 1/2
[M] “3/4 3/4 3/4 1 1
Min. of ue pipe mm 100 100 100 100 100
Drained weight Kg 50 54 59 89 93
DIMENSIONS

Min. 300 mm
Min. 220 mm
Min. 25 mm
Min.
25 mm
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 42 - 50 - 75 Solo Prestige 100 - 120 Solo
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TECHNICAL CHARACTERISTICS
CLEARANCE WALL MOUNTING  DIMENSIONS
For boiler mounting on the wall, refer to "Boiler Installation - Wall Mounting" on page 27.

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TECHNICAL CHARACTERISTICS
COMBUSTION CHARACTERISTICS
PRESTIGE SOLO
42 50 75 100* 120*
G20/G25 G31 G20/G25 G31 G20/G25 G31 G20/G25 G31 G20/G25 G31
Input (PCI) max kW 42.0 42.0 50.0 50.0 69.9 69.9 99.0 99.0 115 . 0 115. 0
min kW 5.2 6.3 7. 2 7.5 10.2 11. 5 12.5 14.0 12.5 13.0
Output at 100% (80/60°C) kW 40.4 40.4 48.2 48.2 67.7 67.7 96.6 96.6 110 . 8 110 . 8
(50/30°C) kW 44.2 44.2 52.4 52.4 73.8 73.8 104.2 104.2 120.0 120.0
Eciency at 100% (80/60°C) %96.3 96.3 96.3 96.3 96.8 96.8 97.6 97. 6 96.3 96.3
(50/30°C) %105.3 105.3 104.9 104.9 105.6 105.6 105.3 105.3 104.3 104.3
Eciency at 30% load (EN677) %106.6 106.6 106.8 106.8 107.3 107. 3 107.9 107.9 108.0 108.0
NOx (Class 5) Weighted mg/kWh 32 -39 -48 -38 -44 -
CO Max. output mg/kWh 86 94 70 99 92 105 70 134 74 112
CO2(without front panel) Max. output %CO28.7 10.2 8.8 10.4 8.8 10.4 8.7 10.3 8.8 10.4
Min. output %CO28.7 10.2 8.8 10.4 8.8 10.4 8.7 10.3 8.8 10.4
CO2(closed front panel) Max. output %CO29.0 10.5 9.1 10.7 9.1 10.7 9.0 10.6 9.1 10.7
Min. output %CO29.0 10.5 9.1 10.7 9.1 10.7 9.0 10.6 9.1 10.7
Max gas ow rate
G20/G25
G20 (20 mbar) m³/h 4.4 -5.3 _7.4 -10.5 -12. 2 -
G25 (25 mbar) m³/h 5.2 -6.1 -8.6 -12.2 -14.2 -
Max. gas ow rate G31 30/37/50 mbar Kg/h -3.3 -3.9 - 5.4 -7. 7 -8.9
30/37/50 mbar m3/h -1.7 -2.0 -2.9 -4.0 -4.7
Temp. of ue gases
Nominal °C 80 80 80 80 80 80 80 80 80 80
Max. °C 110 110 110 110 110 110 110 110 110 110
Min. °C 30 30 30 30 30 30 30 30 30 30
Mass ow rate** of ue gases
Nominal kg/h 70.5 69.4 83.9 82.6 117. 3 115 . 5 166.1 163.6 193.0 190.1
at min output kg/h 8.7 10.4 12.1 12.4 17.1 19.0 21.0 23.1 21.0 21.5
* To operate a Prestige 100 or 120 Solo with G25 gas, it is recommended to remove the factory-installed orifice in order to reach the normal performance values. Refer to "Conversion to Propane and G25 Natural Gas"
on page 31 for the correct orifice removal procedure.
** Mass flow rate values were calculated for G20 and G31 with an air factor of 1.3.

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TECHNICAL CHARACTERISTICS
GAS CATEGORIES
* Prestige 42 - 50 - 75 Solo
**Prestige 100-120 Solo
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
NL II2L3P
PL II2E3P
PT II2H3P
RO II2H3P
SI II2H3P
SK II2H3P

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TECHNICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS PRESTIGE 42  50  75 SOLO
PRESTIGE SOLO
Main Characteristics 42 50 75
Rated voltage V~ 230 230 230
Rated frequency Hz 50 50 50
Electrical consumption W78 78 126
Class IP 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 terminal)
: CH circuit circulator pump (CH terminal)
: DHW circuit circulator pump (DHW terminal)
7. Burner PWM plug
8. NTC5 ue gas temperature sensor
9. NTC2 return sensor
10. NTC1 supply sensor
11. Gas pressure switch
12. NTC - Low temperature circuit
13. High limit switch
14. Low water pressure sensor
15. PCB (Display)
16. ACVMax programmation plug
17. Cascade harness connection terminal
18. A & B Modbus (option)
19. NTC3 DHW sensor (option)
20. NTC4 outdoor temperature sensor (option)
21. Room thermostat 1 (option)
22. 0-10 Volt (option)
23. Cascade temp. sensor (option)
24. Room thermostat 2 (option)
25. Ignition and ionization cable
26. Connection for Interface Control Unit (option)
27. 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.