Riello INSIEME EVO COND B/130 LN User manual

cod. 20152359 rev. 2 01/2021
INSIEME EVO COND 25-35 B/130 LN
EN USER MANUAL

2
Dear Customer,
Thank you for preferring a Rheating unit, a modern,
high-quality product that is able to guarantee your maximum
well-being for a long period of time, with high levels of relia-
bility and safety. In particular, if working together with a Tech-
nical Assistance Service R that is specically prepared and
trained to perform periodic maintenance, your unit will remain
at maximum efciency levels at minimum operating costs and if
required, replacements with original spare parts can be made.
This instruction manual contains important instructions and
precautions that must be observed to ensure the trouble-free
installation and efcient functioning of your INSIEME EVO COND
boiler.
Please accept our renewed thanks for your purchase
Riello S.p.A.
CONFORMITY
Thermal units INSIEME EVO COND B/130 LN comply with:
−Directive 92/42/EEC on efciency requirements
−Electromagnetic Compatibility Directive 2014/30/EU
−Low Voltage Directive 2014/35/EU
−Ecodesign Directive 2009/125/CE for energy-related prod-
ucts
−Regulation (EU) 2017/1369 Energy labelling
−Delegated Regulation (EU) N. 811/2013
−Delegated Regulation (EU) N. 813/2013
−Delegated Regulation (EU) N. 814/2013
At the end of its life, the product
should be not be disposed of as solid
urban waste, but rather it should be
handed over to a differentiated waste
collection centre.
ENGLISH

3
This manual, Code 20152359 - Rev. 2 (01/2021)
comprises 24 pages.
CONTENTS
The following symbols are used in this manual:
9 CAUTION! = Identies actions that require caution and
adequate preparation.
0 STOP! = Identies actions that you MUST NOT do.
Thismanual,Code
-Rev.
comprises
pages.
1 GENERAL INFORMATION ............................4
1.1 General Safety Information ......................4
1.2 Precautions..................................4
1.3 Description of the appliance .....................5
1.4 Safety and control devices.......................5
1.5 System layout ................................6
1.6 Control panel ................................7
1.7 Menu navigation..............................9
1.8 Navigation scheme ............................11
1.9 List of user parameters ........................ 12
2 USE................................................14
2.1 Putting into service ........................... 14
2.1.1 Preliminary operations ........................ 14
2.1.2 Start-up ................................... 14
2.1.3 Adjustment of heating setpoint.................. 16
2.1.4 Enable/disable the heating function .............. 16
2.1.5 Enable/disable the domestic function............. 16
2.1.6 Adjustment of domestic setpoint ................ 16
2.1.7 Special functions..............................17
2.1.8 Ignition failure .............................. 18
2.2 Temporary or short-term shut-down ............. 18
2.3 Preparing for extended periods of disuse .......... 18
2.4 Device cleaning and maintenance ............... 19
2.5 External cleaning ............................ 19
2.6 Annual cleaning ............................. 19
2.7 Troubleshooting .............................20
3 RECYCLING AND DISPOSAL ........................21

4
GENERAL INFORMATION
1 GENERAL INFORMATION
1.1 General Safety Information
9 This product must be installed by a legally qualied heat-
ing engineer. On completion of the installation, the install-
er must issue the owner with a declaration of conformity
conrming that the installation has been completed to the
highest standards in compliance with the instructions pro-
vided by Rin this instruction manual, and that it con-
forms to all applicable laws and standards.
9 This product must only be used for the purpose for which it
is designed and made, as specied by R. Rdeclines
all responsibility, contractual or other, for damage to prop-
erty or injury to persons or animals caused by improper in-
stallation, adjustment, maintenance or use.
9 The room where the boiler is installed must be proper-
ly ventilated to ensure a sufcient supply of air for correct
combustion.
9 In case of water leaks disconnect the equipment from the
power mains, close the water supply and promptly alert
Technical Assistance Service R or professionally qualied
personnel.
9 Regularly check that the condensate drain is free from ob-
struction.
9 The boiler must be serviced at least once a year. The failure
to perform annual maintenance work will void the warranty
of the equipment.
9 Periodically check that pressure in the central heating cir-
cuit, when cold, is approximately 1.5 bar and below the
maximum limit specied for the boiler. If this is not the
case, contact the Technical Assistance Service Ror pro-
fessionally qualied personnel.
9 If the boiler is not going to be used for an extended peri-
od of time, perform the operations described later in this
manual.
9 This manual is an integral part of the equipment and there-
fore must be stored carefully and must ALWAYS accompany
the boiler even if it is sold to another Owner or User or trans-
ferred to another plant. If it is damaged or lost, request an-
other copy from your local Technical Assistance Service R.
1.2 Precautions
The operation of any appliance that uses fuel, electrical power
and water demands that a number of fundamental safety pre-
cautions be respected:
0 Do not allow children or inrm persons to operate the sys-
tem unsupervised.
0 It is forbidden to use electrical devices or equipment, such
as switches, appliances, etc. if there is a smell of gas or un-
burnt products. If so:
−Ventilate the room, opening doors and windows
−Close the fuel shut-off cock
−Ask for the prompt intervention of the Technical Assis-
tance Service
0 Do not touch the boiler while barefoot or wet.
0 Do not plug or block the condensate drain outlet.
0 Never pull, disconnect, or twist the electrical cables coming
from the appliance even if it is disconnected from the mains
electricity supply.
0 Do not obstruct or restrict the vents in the room where the
boiler is installed. Adequate ventilation is essential for cor-
rect combustion.
0 Do not expose the boiler to the elements. It is not designed
for use outdoors.
0 Do not switch off the appliance if the outdoor temperature
may drop to below ZERO (frost hazard).
0 It is prohibited to leave inammable substances and con-
tainers in the room where the boiler is installed.
0 Do not dispose of packaging material into the environment,
or leave it within the reach of children, since it can become
a potential hazard. Dispose of packaging material in com-
pliance with applicable legislation.
0 It is forbidden to operate the boiler without water.
0 The equipment casing must not be removed by people
without specic qualication and expertise.

5
GENERAL INFORMATION
1.3 Description of the appliance
The light oil condensing thermal unit INSIEME EVO COND B/130
LN is a hot water generator for the heating of environments and
production of domestic hot water (DHW) by means of a vitried
heater. It can function at low temperature and is oil fuelled. The
low NOx burner features a single-stage operation and a vertical
steel combustion chamber. The boiler unit is effectively and ac-
curately insulated with a high-density glass wool mat. The con-
trol panel includes a user interface with display and an elec-
tronic board for the thermal unit adjustment and control, which
allows to manage the control and safety devices in compliance
with the regulations in force.
1.4 Safety and control devices
The control panel, apart from managing the functions of the
thermal unit INSIEME EVO COND B/130 LN, allows highlighting any
anomaly which may affect its correct operation, ensuring the
thermal unit safety by stopping it and automatically closing the
burner light oil valve.
The burner control and adjustment board is also used to ensure
the burner safety by managing its correct operation.
Any anomaly which may affect the generator operation forces
it to stop (lock-out) and is promptly signalled with a numerical
error code on the regulator display.
The following are installed on the water circuit:
−Safety thermostat: tted on the generator body, it in-
tervenes by stopping (permanent error) the thermal unit
if the boiler temperature exceeds the limit threshold of
110°C;
−Safety valve: intervenes if the boiler pressure exceeds the
limit threshold of 3 bar;
−Pressure transducer: sends a signal to the electronic reg-
ulator which views and continually checks the primary
circuit pressure to switch on the generator or cause it to
stop in case of low pressure;
−Boiler temperature probes (delivery and return): im-
mersion probe on the delivery line of the generator is
used by the regulator to view and check the delivery wa-
ter temperature and check the correct switching on and
off of the burner based on the programmed setpoint. The
regulator uses the same probe to switch off the genera-
tor in case of overtemperature, before the triggering of
the safety thermostat. The contact probe placed on the
return line of the boiler is used by the regulator to view
the return water temperature with which it calculates,
together with the delivery temperature, the temperature
difference between delivery and return (∆t), which allows
regulating the modulation of the circulator in heating
mode.
9 The intervention of a safety device indicates a potentially
dangerous malfunction in the system. Contact the manu-
facturer’s Technical Assistance Service immediately.
9 Safety devices must only be replaced by the manufactur-
er's Technical Assistance Service using original spare parts.
Refer to the spare parts catalogue supplied with the boiler.
After making the repair, check that the appliance is working
properly.
0 The appliance must not be put in service, even temporarily,
when tampered safety devices are not in operation or have
been tampered with.

6
GENERAL INFORMATION
1.5 System layout
INSIEME EVO COND B/130 LN
311
14
15
17
18
25
27
16
13
12
5
6
7
9
10
4
8
1
2
24
22
23
26
21
20
19
28
1 Electric actuator
2 3-way diverting valve
3 Main switch
4 Central heating ow
5 Heating safety valve
6 Central heating return
7 Condensate drain siphon
8 Storage cylinder expansion vessel
9 Domestic hot water outlet
10 Domestic cold water inlet
11 Control panel
12 Heating expansion reservoir
13 Burner
14 Boiler drain cock
15 Magnesium anode
16 Storage cylinder inspection ange
17 Storage cylinder ange insulation
18 Storage cylinder drain cock
19 Storage cylinder safety valve
20 Storage cylinder ll cock
21 Storage cylinder with insulation
22 Flame inspection window
23 Boiler body
24 Pump
25 Exhaust ue duct
26 Flue gas box cover
27 Automatic bleed valve
28 Serial number plate

7
GENERAL INFORMATION
1.6 Control panel
Controls interface
5
5
1
2
3
4
6
1 Door
2 Light guide
3 Rear light display
4 ENTER/RESET key: it allows accessing the main menu and restoring the operation after a stop due
to an anomaly
5 Navigation keys
6 Main switch (located on the equipment rear wall)
Light Guide displaying
STATUS DESCRIPTION
Green blinking Thermal unit drain cycle and initialization in progress after the power supply
reset.
Steady green Thermal unit on
Steady red Thermal unit in alarm mode
Red blinking Thermal unit in lock-out mode

8
GENERAL INFORMATION
Display visualisation
HEAT
Bar
Bar
°C
°F
Psi
Psi
OUTSIDE
1 2 3 4 5
6
78
9
10
11
1 Icon displayed when heating mode is enabled. Blinking when there is a heat demand
2 Icon displayed when DHW mode is enabled. Blinking when there is an DHW Demand
3 Icon displayed when entering the "Installer" menu
4 Icon displayed when the burner of the equipment is on. The icon will be marked with a cross in
case of Permanent or Temporary error.
5 Icon displayed when the climatic mode operation is active (Par. 2001= 1 or 2)
6 Celsius/Fahrenheit temperature
7 Displays current value
8 Displaying of system pressure or parameter number or external temperature
9 Icon displayed when the circulator is operating
10 Pressure in Bar/Psi
11 Icon displayed when the outdoor probe is connected

9
GENERAL INFORMATION
1.7 Menu navigation
At start-up or when no key is pressed for more than 4 minutes, the display is in “basic display” mode and provides general infor-
mation on the equipment operation.
5
3
4
2
1
In this mode, keys have the following functions:
Nr. Button Function
1 "+"It increases the heating setpoint (when active/available)
2 "-"It decreases the heating setpoint (when active/available)
3 "▲"Raise the DHW set point (when available)
4 "▼"Decrease the DHW set point (when available)
5"ENTER/RESET" Enters into "MENU" mode
If pressed for more than 5 seconds, it resets a permanent error (Loc)
Additional functions:
Button Function
"+" with "-" It accesses enable/disable heating function mode
"▲" + "▼"It accesses enable/disable DHW production function mode
9 For more information, see paragraph "Enable/disable the heating function" on page 16.
"Basic display" mode
Adjustment of heating setpoint
°C
Adjustment of domestic setpoint
°C
or
or or
°C or

10
GENERAL INFORMATION
MENU selection
Access the “menu” mode by pressing the key “ENTER/RESET” The digits of the small display indicate “0000”, which is the rst acces-
sible menu.
5
3
4
2
1
In this mode, keys have the following functions:
Nr. Button Function
1"+" Exits from the menu and cancels a parameter change
2"-" Exits from the menu and cancels a parameter change
3 "▲"Selects the following menu or increases a certain parameter value
4 "▼"Selects the previous menu or decreases a certain parameter value
5"ENTER/RESET" Enters into the selected menu/parameter or conrms the parameter change

11
GENERAL INFORMATION
1.8 Navigation scheme
"Basic display" mode
“End user” mode
Bar
°C
or
Example of parameter setting
change
conrmed
change
canceled
or
or or

12
GENERAL INFORMATION
1.9 List of user parameters
Menu Par.
No. Description Range Default
setting UM
Main menu
0000 013
Quick adjustment of direct Zone/Zone 1 heating setpoint in 0
and 3 heating modes.
By connecting the zone control accessory, this parameter
can be used to quickly change direct Zone/Zone 1 setpoint.
This parameter simultaneously modies the value of Par.
2103.
See Par. 2103 See Par.
2103 °C
0000 023
Quick adjustment of Zone 2 heating setpoint in 0 and 3
heating modes.
By connecting the zone control accessory, this parameter
can be used to quickly change Zone 2 setpoint. This param-
eter simultaneously modies the value of Par. 2203.
See Par. 2203 See Par.
2203 °C
0000 033
Quick adjustment of Zone 3 heating setpoint in 0 and 3
heating modes.
By connecting the zone control accessory, this parameter
can be used to quickly change Zone 3 setpoint. This param-
eter simultaneously modies the value of Par. 2303.
See Par. 2303 See Par.
2303 °C
0000 047 Quick adjustment of DHW setpoint with heater
This parameter is only visible with Par. 2035 = 1 See Par. 2047 °C
0000 201
Stops the venting function
0 = No action
1 = Stop venting
Visible only when de-aeration is in operation
0…1 0
Info menu
1000 1001 CH ow temperature °C
1000 1002 Domestic hot water temperature °C
1000 1004 Outdoor temperature °C
1000 1006 Displays the ue temperature °C
1000 1007 Return temperature °C
1000 1033 System pressure bar
1000 1056 Total hours of operation in heating mode h x 10
1000 1057 Total hours of operation in domestic mode h x 10
1000 1058 Total hours of operation h x 10
1000 1062 Displays the ow meter ow rate
Display active only with Par. 2027 = 1 l/min.
1000 1063 Input signal 0-10V V
1000 1090
Counts down the days to the next service (if it’s past, a neg-
ative value is shown)
If the value is < 15 the service icon ashes
Days
1000 1101 Direct Zone/Zone 1 delivery temperature °C
1000 1102 Direct Zone/Zone 1 ambient temperature °C
1000 1112 Zone 1 heating setpoint °C
1000 1201 Zone 2 delivery temperature °C
1000 1202 Zone 2 ambient temperature °C
1000 1212 Zone 2 heating setpoint °C
1000 1301 Zone 3 delivery temperature °C
1000 1302 Zone 3 ambient temperature °C
1000 1312 Zone 3 heating setpoint °C
Heating general settings
2000 2021 Number of days to next service 365 Days
2000 2022
Service reminder
This function reminds the user of the need to carry out a
programmed service on the boiler, after the number of days
set in Par. 2021
0 = Deactivates the function
1 = Activates the function
2 = Resets the countdown of days to next service to zero
0…2 0
2000 2078
Set service hours countdown
0= Burner’s hours of operation
1 = Boiler’s hours of operation
0…1 0

13
GENERAL INFORMATION
Menu Par.
No. Description Range Default
setting UM
Direct Zone / Zone 1 Heating Settings
2000 2103
Direct Zone/Zone 1 setpoint in heating mode Par. 2001= 0
and 3
The thermal unit adjustment determines the boiler set-
point in heating mode, using the highest value among the
requests of all the active zones (Par. 1101, 1201, 1301)
If Zone 1 is congured as mixed, the value set in parameter
1112 will be used as setpoint
If Zone 1 is not ena-
bled:
(Par. 2121)
If Zone 1 is enabled:
BT: (Par. 2121, 45)
AT: (Par. 2121)
70 (AT)
45 (BT) °C
2000 2130 Parallel shift of direct Zone/Zone 1 climatic curve -10…10 0°C
Zone 2 Heating Settings
2000 2203
Zone 2 heating setpoint in 0 and 3 heating modes
The thermal unit adjustment determines the boiler set-
point in heating mode, using the highest value among the
requests of all the active zones (Par. 1101, 1201, 1301)
If Zone 2 is set as mixed, the value set in parameter 1212 will
be used as the setpoint.
BT: (Par. 2221, 45)
AT: (Par. 2221)
70 (AT)
45 (BT) °C
2000 2230 Parallel shift of direct Zone/Zone 1 climatic curve -10…10 0°C
Zone 3 Heating Settings
2000 2303
Zone 3 heating setpoint in 0 and 3 heating modes
The thermal unit adjustment determines the boiler set-
point in heating mode, using the highest value among the
requests of all the active zones (Par. 1101, 1201, 1301)
If Zone 3 is set as mixed, the value set in parameter 1312 will
be used as the setpoint.
BT: (Par. 2321, 45)
AT: (Par. 2321)
70 (AT)
45 (BT) °C
2000 2330 Parallel shift of direct Zone/Zone 1 climatic curve -10…10 0°C
DHW settings and system conguration
2000 2047 DHW setpoint with heater
This parameter is only visible with Par. 2035 = 1 40...65 57 °C
Error log
9000 9001 Error log - 1 0…9999
9000 9002 Error log - 2 0…9999
9000 9003 Error log - 3 0…9999
9000 9004 Error log - 4 0…9999
9000 9005 Error log - 5 0…9999
9000 9006 Error log - 6 0…9999
9000 9007 Error log - 7 0…9999
9000 9008 Error log - 8 0…9999
9000 9009 Error log - 9 0…9999
9000 9010 Error log - 10 0…9999

14
USE
2 USE
2.1 Putting into service
Have the RTechnical Assistance Service start up your INSIEME
EVO COND boiler for the rst time. Once this has been done, the
boiler can be left to function automatically.
Under certain circumstances, such as after long periods of dis-
use, the user may need to re-start it without involving the Tech-
nical Assistance Service.
2.1.1 Preliminary operations
Perform the following checks before starting up the boiler:
−Check that the fuel shut-off cock and heating system
shut-off cock are open
−the pressure of the hydraulic circuit, with cold water, is
1.5 bar (value indicated on the rst screen of the control
panel display) and the circuit is not vented
Bar
°C
−Check that the expansion vessel is correctly pre-charged
−the electric connections have been made correctly
−Check that the ue and air vents are made to applicable
laws and standards.
2.1.2 Start-up
Once you have completed all the checks listed above, proceed as
follows to start up the boiler for the rst time:
−set the main switch of the system to ON and the main
switch of the equipment to (I).
Upon switching on, the display of the control interface of the
device shows the following pages in sequence.
HEAT
Bar
Bar
°C
°F
Psi
Psi
OUTSIDE
Firmware version of the thermal unit interface.
In the example the message indicates a rmware version = 0.
Communication test between interface and regulator.
The message “init” will appear briey to indicate the beginning
of the communication between the interface and regulator in-
side the thermal unit (*)

15
USE
Firmware version of the thermal unit regulator.
In the example the message indicates a rmware version = 1.
At rst start-up and at every restoration of the power supply the
venting function signalled by the message “Air” activates.
The vent cycle lasts 14 minutes.
°C
(*) If the communication test fails the message “no COMM”
will appear
Once the initialization phase is complete, the display switches to
“basic display” mode.
In this mode, the main information on the equipment opera-
tion is displayed. The meaning of the different icons displayed
is explained in paragraph “Control panel”. The icon and the
heating delivery temperature are displayed, either if the boiler
is in stand-by mode or if a temperature request is active (icon
blinking).
To switch off the equipment, set the main switch to “0”.
9 Never power off the appliance before switching the master
switch to the "0" position.
9 Never switch off the appliance with the master switch if a
request is active. Always make sure that the appliance is in
stand-by before switching the main switch.
Example of generator stand-by display in heating only mode
(external probe not connected)
Bar
°C
−Set the room thermostat to the required temperature (~
20°C) or, if the system has a timer or timer-thermostat,
make sure that this is switched “ON” and adjusted to the
required temperature (~ 20°C);
9 In certain conditions, the “Heating circuit anti-freeze pro-
tection” function (Par. 2075 = 1) activates the appliance cir-
culator and burner (see section “Special functions”) by rais-
ing the heating system temperature, even where there is no
heat request.
9 If the “Heating circuit anti-freeze protection” function is de-
activated (Par. 2075 = 0), the heating circuit is not protected
against freezing during periods of inactivity.

16
USE
2.1.3 Adjustment of heating setpoint
−Press the key“+” or “-” to display the current value of the
heating temperature setpoint.
°C
−Increase or decrease the setpoint according to the type of
system by using the key “+” of “-”.
−To save the modication made and go back to the initial
screen, wait for 3 seconds or press the key “ENTER/RESET”.
−Check that the thermal unit starts the ignition phase
and that the display shows the icon blinking (ambient
heating request) and the icon .
−The thermal unit ignition phase will start only after the
light oil pre-heating phase will be completed and will
remain active until the set temperature will be reached.
2.1.4 Enable/disable the heating function
−Press the keys “+” and “-” simultaneously for a few sec-
onds;
−The icon and the current heating mode (ON or OFF) will
blink on the display;
−Press the keys “+” and “–” to select the required mode;
−Press the key “ENTER/RESET” or wait for 3 seconds to save
the modication made and go back to the initial screen.
2.1.5 Enable/disable the domestic function
−Press the keys "▲" and "▼" simultaneously for a few
seconds;
−The icon and the current domestic mode (ON or OFF)
will blink on the display;
−Press the keys "▲" and "▼" to select the required mode;
−To save the modication made and go back to the initial
screen, press the key “ENTER/RESET”.
2.1.6 Adjustment of domestic setpoint
−Press the key "▲" o "▼" to display the current value of
domestic setpoint.
°C
−Increase or decrease the setpoint by using the key “▲"
o "▼".
−To save the modication made and go back to the initial
screen, press the key “ENTER/RESET”.

17
USE
2.1.7 Special functions
When a special function is active, a specic message is shown
on the display of the device control interface.
Pump activation protection during a Domestic Water request
If during a domestic water request the delivery temperature of
the burner is lower than that of the heater the pump will not be
activated.
Frost protection
The anti-freeze protection function protects the system against
freezing.
When the anti-freeze function is active, the message “AFro” is
displayed.
The intervention modes are the following:
−Burner anti-freeze protection: If the temperature of the
delivery probe of the device drops below 5°C the burner
turns on and stays on until the delivery temperature ex-
ceeds 10°C (with the external probe connected the pro-
tection activates only with external temperature values
< 10°C).
−Heating circuit anti-freeze protection: If the burner stays
off for 6 consecutive hours the circulator of the device will
activate for 5 minutes. If the temperature of the delivery
probe of the device drops below 5°C the burner turns on
and stays on until the delivery temperature exceeds 10°C
(with the external probe connected the protection acti-
vates only with external temperature values < 10°C).
−Domestic circuit heater anti-freeze protection: If the
temperature of the heater probe drops below 5°C the
burner turns on and the circulator and 3-way diverting
valve will activate. The burner stays on until the temper-
ature of the storage tank sensor exceeds 10°C and the
pump continues to operate for the post-circulation time.
With the external sensor connected, protection is activat-
ed only when the external temperature is < 10°C.
Venting
The function is automatically enabled at the rst start-up and at
each reset of the power supply.
When the function is active, the message “Air” is displayed.
During the venting, the circulator is enabled, so that the air
which may be present inside the system circuit can exit through
the automatic drain valve of the device.
The status of the light guide changes to ashing green.
In the event of a low pressure error (40 and 41) or error of the
pressure transducer (42), the bleed cycle is interrupted.
Anti-legionella function - With Heater Probe only
The function is automatically enabled when the heater sensor
is connected, at each reset of the power supply or daily, if nec-
essary.
When the function is on, the message “ALE9” is shown next to
the storage tank temperature.
The function increases the water temperature inside the heater
up to 65°C and keeps it for 30 minutes.
Once this time has elapsed, the control box normal operation is
restored.
Protection against temperatures that are too high
This function prevents a possible safety thermostat triggering.
If the boiler temperature exceeds the value set in this parameter,
the burner turns off and the circulator continues its operation to
discharge the excessive heat (post-circulation).
Circulator and 3-way valve activation every 24 hours
Every 24 hours the circulator and 3-way diverting valve are acti-
vated for 30 seconds (only in heating mode 0,1,4).
This function prevents the circulator and valve from getting stuck
in a determined position.

18
USE
2.1.8 Ignition failure
If an ignition or operating anomaly occurs, the thermal unit dis-
play will show a text message (small digit) and a number (large
digit), which vary according to the anomaly detected.
There are 3 error levels:
−Permanent (Loc)
−Temporary (Err)
−Alerts (AttE)
The section with the large digit will display the error number
and , according to the error / alert, a message which will cycli-
cally blink together with the number.
For a detailed description, see the error list.
Permanent Error
The text “Loc” is displayed together with the permanent error
number. The icon indicates that the burner is disabled. The
equipment must be manually reset by keeping the key “ENETER/
RESET” pressed.
Temporary Error
The text “Err” is displayed together with the temporary error
number.
The icon indicates that the burner is disabled.
The lock-out error must be solved.
Contact your local Technical Assistance Service
Warnings
The text “AttE” is displayed together with the alert number.
The equipment is not locked out, but its functions may be limit-
ed (according to the alert).
Contact your local Technical Assistance Service
2.2 Temporary or short-term shut-down
In the event of temporary or short-term shut-down (e.g. due to
holidays), proceed as follows:
−Remove the power supply by setting the main switch
of the equipment and the main switch of the system to
"OFF".
−If there is a danger of frost, keep the system on. To reduce
fuel consumption, set the heating set point to the mini-
mum allowed value.
2.3 Preparing for extended periods of disuse
If the appliance is not going to be used for a long period of time,
the following operations should be carried out:
set the main switch of the system to OFF and the main switch of
the equipment to (0);
−close the fuel cock and heating circuit water cock.
9 Drain the central heating circuit if there is any risk of freez-
ing.

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2.4 Device cleaning and maintenance
Please remember that THE PERSON RESPONSIBLE FOR SYSTEM MAN-
AGEMENT MUST ENSURE THAT PROFESSIONALLY QUALIFIED HEATING
ENGINEERS UNDERTAKE PERIODIC MAINTENANCE AND COMBUSTION
EFFICIENCY MEASUREMENTS.
R’s Technical Assistance Service is qualied to satisfy these
legal requirements and can also provide useful information on
MAINTENANCE PROGRAMMES designed to guarantee:
−Greater safety
−Compliance with applicable legislation
−Freedom from the risk of nes in the event of spot checks.
Regular maintenance is essential for the safety, efciency and
durability of the boiler.
Servicing is a legal requirement and must be performed at least
once a year by a professionally qualied heating engineer.
2.5 External cleaning
Clean the boiler’s casing panels and control panel with a soft
cloth damped in soapy water.
To remove marks from the boiler casing, use a cloth damped in a
50% mix of water and denatured alcohol or a suitable cleaning
product.
Wipe the boiler dry after cleaning it.
0 Do not use abrasive products, petrol or triethylene.
2.6 Annual cleaning
At least once a year, the user must have the boiler served by
R's Technical Assistance Service or by a qualied heating en-
gineer.

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USE
2.7 Troubleshooting
FAULT CAUSE SOLUTION
There is a smell of fumes Fumes escaping into the air −Contact your local Technical Assistance
Service
The generator is at temperature but the
heating system is cold
Air in the circuit −Contact your local Technical Assistance
Service
Pump malfunctioning −Contact your local Technical Assistance
Service
The boiler does not reach its
temperature setpoint Boiler temperature setpoint
−Check the temperature setting
−Contact your local Technical Assistance
Service
The generator triggers a thermal safety
block
Safety thermostat / delivery
overtemperature
−Contact your local Technical Assistance
Service
No water −Contact your local Technical Assistance
Service
The safety valve keeps opening
Incorrect central heating circuit pressure −Contact your local Technical Assistance
Service
CH expansion vessel −Contact your local Technical Assistance
Service
The circulator does not work
Pump seized
Electrical connections
−Contact your local Technical Assistance
Service
The request from the ambient thermostat
is missing
−Check the temperature set on the am-
bient thermostat
−Contact your local Technical Assistance
Service
Insufcient domestic hot water or water
not hot enough
Diverter valve or pump faulty −Contact your local Technical Assistance
Service
Domestic setpoint
−Check the temperature setting
−Contact your local Technical Assistance
Service