Biasi RINNOVA Series User manual

User manual and
installation
instructions
RINNOVA

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WARNING
Congratulations on choosing this product.
Your modulating boiler is electronically adjusted and ignited.
• It is highly efcient.
• It has a sealed chamber.
The materials used and the control systems offer safety, high levels of comfort and energy
savings so you can appreciate the maximum advantages of autonomous heating.
DANGER: Instructions marked with this symbol must be observed to prevent
mechanical or generic accidents (e.g. injuries or bruises).
DANGER: Instructions marked with this symbol must be observed to avoid
electrical accidents (electrocution).
DANGER: Instructions marked with this symbol must be observed to avoid
the risk of re or explosions.
DANGER: Instructions marked with this symbol must be observed to avoid
heat-related accidents (burns).
WARNING: Instructions marked with this symbol must be observed to avoid
malfunctions and/or material damage to the unit or other items.
WARNING: Instructions marked with this symbol contain important informa-
tion that must be read carefully.
WARNING: Risk of cutting / stabbing. Protective gloves must be worn.

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WARNING
IMPORTANT
The manual must be read carefully to ensure rational and safe use of the boiler. It must
be stored with care as it may be necessary to consult it in the future. If the unit is trans-
ferred to another owner, the manual must accompany the boiler.
The initial switch-on must be carried out by an Authorised Service Centre. A list of these
can be found at www.biasi.it/assistenza. The validity of the warranty starts from the date
the product is purchased (see conditions listed on the specic certicate).
The manufacturer declines all liability for translations of this manual from which incorrect
interpretations may result. It cannot be considered responsible for failure to observe the
instructions contained in this manual or the consequences of any actions that have not
been specically described.
DURING INSTALLATION
After removing the packaging, make sure that the appliance is not damaged.
If damaged do not install or start up the appliance as it may be dangerous.
Contact your retailer or the nearest authorised service centre.
Installation must be carried out by qualied personnel who are responsible for compli-
ance with all applicable national and local laws and standards.
The boiler is used to heat water to a temperature that is lower than boiling point, and
must be connected to a heating system and/or a domestic hot water distribution network
that is compatible with its performance and power.
The boiler must be supplied with Methane gas (G20) or LPG (Propane G31).
The boiler must only be used for the purpose for which it was designed. Furthermore:
• It must not be exposed to atmospheric agents.
• This unit is not meant for use by people with reduced psychological or motor skills or
who lack experience and knowledge (including children), unless they are supervised by
a person responsible for their safety and have been properly instructed in using the unit.
• Children must be supervised to make sure they do not play with the unit.
• Prevent incorrect use of the boiler.
• Avoid making adjustments to the sealed devices.
• Avoid contact with hot parts during operation.

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WARNING
DURING USE
It is prohibited and dangerous to obstruct, even partially, the air intakes for the ventila-
tion of the room where the boiler is installed (UNI 11071 and related standards);
Repairs must only be carried out by authorised service centres using original spare parts.
Therefore, in the case of a problem, deactivate the boiler only (see instructions).
If you smell gas:
• Do not turn on electric switches, the telephone or any other object that could create
sparks.
• Immediately open up the doors and windows to create an air current that cleans the
room.
• Close the gas cocks.
• Request the intervention of professionally qualied personnel.
Before starting the boiler, have a qualied professional check that the gas supply sys-
tem:
• Is perfectly sealed.
• Is the right size for the required ow rate to the boiler.
• Is equipped with the safety and control devices required by current standards;
• Make sure that the installer has connected the safety valve drain to a outlet funnel.
The manufacturer is not responsible for damage caused by the water released when
the safety valve opens, if it is not correctly connected to a drainage system.
• Make sure that the installer has connected the condensate siphon drain to a specic
outlet funnel (UNI 11071 and related standards), which must be implemented in order
to avoid the condensate freezing and ensure it is correctly drained.
Do not touch the unit with wet or damp body parts and/or in bare feet.
If performing structural work or maintenance near the ue gas ducts and/or the ue
gas exhaust devices or their accessories, turn off the unit and, when the work is complete,
have a qualied technician check the efciency.
Appliance category: II2H3P (gas G20 20 mbar, G31 37 mbar)
Destination country: EN
This unit is compliant with the following European Directives:
Gas Appliance Directive 2009/142/EC
Boiler Efciency Directive 92/42/EEC
Electromagnetic Compatibility Directive 2004/108/EC
Low Voltage Directive 2006/95/EC
In order to constantly improve its products, the manufacturer reserves the right to change the data pro-
vided in this documentation at any time and without notice.
This documentation is provided for information purposes and cannot be considered as a contract with
third parties.

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TABLE OF CONTENTS
1 BOILER DESCRIPTION ............... 6
1.1 Assembly view........................6
1.2 Shut-off valves and cocks ...............6
1.3 Control panel .........................7
1.4 General LCD characteristics .............7
2 USAGE INSTRUCTIONS............... 9
2.1 Warnings ............................9
2.2 Ignition ..............................9
2.3 Heating circuit temperature .............10
2.4 Domestic hot water temperature .........11
2.5 Shutdown...........................12
3 USEFUL TIPS ...................... 13
3.1 Filling the heating circuit ...............13
3.2 Heating ............................13
3.3 Antifreeze protection ..................13
3.4 Periodic maintenance .................14
3.5 External cleaning .....................14
3.6 Operating anomalies ..................14
3.7 Displays in INFO mode ................15
4 TECHNICAL SPECIFICATIONS ........ 16
4.1 Assembly view.......................16
4.2 Schematic diagram ...................17
4.3 Wiring diagram ......................19
4.4 Technical data M290E.24CM............20
4.5 Technical data M290E.28CM............22
4.6 Technical data M290E.32CM............24
4.7 Hydraulic characteristics ...............26
4.8 Expansion vessel.....................26
5 INSTALLATION ..................... 27
5.1 Warnings ...........................27
5.2 Installation precautions ................27
5.3 Installing the boiler bracket .............28
5.4 Dimensions .........................29
5.5 Fittings .............................29
5.6 Boiler assembly ......................29
5.7 Flue gas outlet dimensions and lengths ...30
5.8 Electrical connections .................35
5.9 Connecting a room thermostat or zone
valves .............................36
5.10 Electrical connection of the remote control
(optional) ...........................37
5.11 Enabling of operation with remote control
(optional) ...........................37
5.12 Installing the external temperature sensor . 38
5.13 Electrical connection between the boiler
and the external sensor ................38
5.14 Enabling operation with the external
sensor and setting the K coefcient.......38
5.15 Selecting the maximum heating
temperature setpoint with climatic curve set 41
5.16 Selecting the heating temperature set.....41
5.17 Setting pump post-circulation ...........42
5.18 Selecting re-ignition frequency ..........43
5.19 Examples of hydraulic systems with
hydraulic separator (optional) ...........44
6 PREPARATION FOR SERVICE ........ 46
6.1 Warnings ...........................46
6.2 Sequence of operations................46
7 CHECKING THE GAS SETTING........ 48
7.1 Warnings ...........................48
7.2 Gas operations and setting .............48
7.3 Setting burner ignition .................51
8 GAS CONVERSION ................. 53
8.1 Warnings ...........................53
8.2 Gas operations and setting .............53
9 MAINTENANCE..................... 55
9.1 Warnings ...........................55
9.2 Removing the body panels .............55
9.3 Emptying the DHW circuit ..............56
9.4 Emptying the heating circuit ............56
9.5 Cleaning the primary exchanger .........56
9.6 Check the pressure in the heating
expansion tank ......................57
9.7 Cleaning the domestic hot water exchanger 57
9.8 Cleaning the burner ...................57
9.9 Controlling the ue gas exhaust duct .....57
9.10 Checking boiler efciency ..............57
9.11 Setting the boiler's chimney sweep function 58
9.12 Settings for changing the control board....59
10BOILER DISPOSAL AND RECYCLING .. 62
Models and boiler certication code
RINNOVA M290E.24CM
RINNOVA M290E.28CM
RINNOVA M290E.32CM

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USE
BOILER DESCRIPTION
1 BOILER DESCRIPTION
1.1 Assembly view
The boiler model and serial number are
printed on the warranty certicate.
Figure 1.1
1
1 Control panel
1.2 Shut-off valves and cocks
Install a shut-off cock for the
DHW inlet.
The gures in this manual only
show one of the possible ways
of installing cocks, pipes and t-
tings.
Figure 1.2
2
3
4 5
6
7 8
11
10
9
2 Gas supply label
3 Heating circuit lling cock
4 Heating delivery pipe
5 Domestic hot water outlet pipe
6 Gas cock
7 Domestic hot water inlet pipe
8 Heating return pipe
9 Heating circuit safety valve discharge
pipe
10 Heating circuit drain cock
11 Heating circuit pressure gauge

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USE
BOILER DESCRIPTION
1.3 Control panel
Figure 1.3
12
13
14
15
16
1718
12 Domestic hot water temperature in-
crease button
13 Domestic hot water temperature de-
crease button
14 LCD display
15 Heating temperature decrease button
16 Heating temperature increase button
17 Stand-by/Winter/Summer button
18 Reset button
1.4 General LCD characteristics
For the boiler technical specications, con-
sult the section "TECHNICAL SPECIFICA-
TIONS" on page 16.
Figure 1.4
bar
RESET
KEY
The symbol indicates a volatile
error. The boiler is reactivated
automatically once the fault
has been resolved
The symbol indicates that the
boiler can be restarted directly
by the user by pressing the re-
set button
All symbols with lines radiat-
ing from them indicate that the
symbol is ashing
LCD SIGNALS
LCD FUNCTION
E01 + Safety lockout due to
failed ignition
E02 + Lockout due to safety
thermostat
E03 + EEPROM error
E04 +
Pump circulation failure
or insufcient system
pressure
E05 +
Flue gas pressure
switch anomaly
E06 +
Heating NTC probe fail-
ure
E07 +
DHW NTC probe fail-
ure
E08 +
External NTC probe
failure
E11 + Parasite ame
E12 +
Return NTC probe fail-
ure
E14 +
Temperature gradi-
ent circulation failure
(>2K/s)

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USE
BOILER DESCRIPTION
LCD FUNCTION
Boiler in DHW an-
ti-freeze phase (the
symbol ashes)
Boiler in heating an-
ti-freeze phase (the
symbol ashes)
Heating set tempera-
ture
(all other symbols are
disabled)
DHW set temperature
(all other symbols are
disabled)
Boiler in chimney
sweep function.
To activate the chim-
ney sweep function, set
“parameter P06≠0”.
1 = minimum power
2 = maximum power
During the the chimney
sweep function, the
and/or symbols
do not ash.
LCD FUNCTION
E22 +
Heating delivery tem-
perature between 90°C
and 100°C
E25 + Boiler in antifreeze
E26 + Gas valve fault
E28 + Tank NTC probe failure
E50 +
Communication with
remote control lost
E52 + Maximum number of
remote unlock attempts
E68 +
Modulating operator
fault
E69 +
Incorrect boiler cong-
uration
Boiler off, (antifreeze
protection active)
Boiler in winter (heat-
ing/DHW) and stand-by
Boiler in summer (DHW
only) and stand-by
Boiler with DHW power
request.
The DHW temperature
is displayed.
Boiler with heating
power request.
The temperature of the
primary heating circuit
is displayed.
Burner ignition
(discharge)
Flame detected
(burner ignited)

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USE
USER INSTRUCTIONS
2 USAGE INSTRUCTIONS
2.1 Warnings
Check that the heating circuit is
correctly lled with water, even
if the boiler is only used for pro-
ducing domestic hot water.
If it is not, proceed with lling; see sec-
tion "Filling the heating circuit" on page
13.
All boilers have an antifreeze system that is
activated if the temperature falls below 5°C;
therefore do not turn off the boiler.
If the boiler is not used during cold periods,
with the resulting risk of freezing, proceed
as described in section "Antifreeze protec-
tion" on page 13.
2.2 Ignition
• The boiler cocks and the cocks used
during installation must be open (Figure
2.1).
Figure 2.1
Open
position
• Power the boiler by turning on the two-
way switch tted during installation. The
LCD display shows the OFF status (only
the heating and DHW antifreeze functions
are active) Figure 2.2.
Figure 2.2
bar
RESET
Heating/DHW operation
• Press the 17 button and hold until both
symbols and appear on the dis-
play.
Figure 2.3
12
13
14
15
16
1718
The LCD display shows the stand-by status
and the and symbols (Figure 2.4).
Figure 2.4
bar
RESET
Operation with production of hot water
only
• Press the 17 button until the symbol
appears on the display Figure 2.5.

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USE
USER INSTRUCTIONS
Figure 2.5
12
13
14
15
16
1718
The LCD display shows the stand-by status
and the symbol (Figure 2.6).
Figure 2.6
bar
RESET
2.3 Heating circuit temperature
The heating delivery hot water temperature
can be adjusted using the 15 (decrease)
and 16 (increase) buttons (Figure 2.5) from
a minimum of approx. 28°C to a maximum
of approx. 55°C or from a minimum of ap-
prox. 50°C to a maximum of approx. 80°C
(see "Selecting the heating temperature
set" on page 41). The rst time one of
these two buttons is pressed the “set” value
is displayed; the second time it is pressed
this can be changed.
Signal on the LCD display:
•the “set” value of the heating delivery hot
water temperature and the symbol
ash. The display background lights up
(Figure 2.7).
Figure 2.7
bar
RESET
Adjusting the heating temperature based
on the outdoor temperature (without ex-
ternal sensor)
Adjust the heating delivery hot water tem-
perature as follows:
• from 27 to 35 with an outdoor temperature
of between 5°C and 15°C
• from 35 to 60 with an outdoor temperature
of between -5°C and +5°C
• from 60 to 80 with an outdoor temperature
of below -5°C.
Your qualied installer may suggest more
suitable settings for your system.
The set temperature has been reached
when the symbol is not visible on the
LCD display.
Heating power demand
When the boiler receives a heating power
request, the display shows the symbol
followed by an increase in the heating de-
livery water temperature. The symbol
ashes (Figure 2.8).
Figure 2.8
bar
RESET