Instruction Manual
for model
RK 34/B Ekoflux
Premix condensing boiler
version for remote storage cylinder connection
CE
0694
- AUSTRALIA
Technical specification RADIANT BRUCIATORI S.p.A. Montelabbate
RK 34.B - RAD - ING - MAN.INST - 1305.1 - DIGITECH 2 - CBD
CONTENTS
1. General information
1.1 General warnings
1.2 Product conformity
pag.
1
3
2. Technical characteristics
2.1 Technical data
4
2.2 Dimensions
5
2.3 Internal parts of the boiler
7
2.4 Water circuit
8
2.5 Circulation pump head/flow graph
10
2.6 Printed circuit board – Technical characteristics
11
2.7 Control panel
11
3. Installation (authorised personnel)
3.1 Reference standard
12
3.2 Boiler room – installation requirements
12
3.3 Unpacking
13
3.4 Installation boiler
14
3.5 Water connections
15
3.6 Gas connection
16
3.7 Electrical connections
17
3.8 Flue connections
19
4. Commissioning the appliance (authorised personnel)
4.1 General warnings
21
4.2 Filling the system
22
4.3 Flushing the system
23
4.4 Filling the condensate trap
23
4.5 Starting up the boiler
24
5. Regulating the appliance (authorised personnel)
5.1 Parameters table
25
5.2 Setting the parameters
26
5.3 Gas Data
32
5.4 Converting the boiler to a different gas type
33
CONTENTS
6
Maintenance (authorised personnel)
6.1 General warnings
pag.
34
6.2 Boiler inspection
34
6.3 Accessing the boiler
35
6.4 Flushing out the primary side
35
6.5 Draining the central heating and domestic hot water system
36
6.6 Maintenance operations
37
6.7 Wiring diagrams
45
6.8 Troubleshooting
52
6.9 Diagnostics
53
6.10 Parts list
54
GENERAL INFORMATION
1. GENERAL INFORMATION
1.1 General warnings
Professionally qualified personnel in accordance with current laws and standards and in line with
the manufacturer’s instructions must install the appliance.
With ‘Professionally qualified personnel’ is intended a personnel with technical knowledge in the
field of installation and maintenance of components for central heating and domestic hot water
production systems for domestic and industrial use.
The appliance must be used solely for the purpose for which it has been designed and
manufactured: central heating and domestic hot water production. Any other use is deemed as
improper and as such dangerous. Under no circumstances will the manufacturer be held
responsible for damage or injury to persons or animals caused by errors in the installation and/or
use of the appliance, or through non-compliance with current local and national standards and/or
the manufacturer’s instructions.
The installation, operation and maintenance manual forms an integral and essential part of the
product and must be kept near the appliance always.
This manual must be kept in a safe place and made available for any future reference. If the
appliance is sold or transferred to a different owner, this must follow the appliance to be red by the
new owner and/or installer.
The warnings contained in this chapter have been written for the appliance user, the installer and
the service engineer.
The user manual must be red carefully as it provides information on the operation and the
operating limits of the appliance.
This appliance must be used exclusively in a pressurised central heating system, not suitable for
use as a pool heater.
• After the removal of all the packaging, check that the appliance has not been damaged. In case of doubt, do not
attempt to use the product but refer to the supplier. Packing materials (cardboard box, wooden crate, nails,
staples, plastic bags, polystyrene, etc.) must not be left within reach of children in that these items represent a
potential hazard and must be disposed of in a responsible manner.
• Before carrying out any cleaning or maintenance operations, disconnect the appliance from the mains electricity
supply by switching off at the main switch and/or any other isolating device.
• Do not obstruct the air intake or flue exhaust grills.
• Do not obstruct the air intake or flue exhaust terminals.
• In the case of a fault and/or malfunction in the appliance, shut down the system. Do not interfere with or attempt
any repairs. Call for professionally qualified technical assistance only.
• Any warranty repairs to the appliance must be carried out exclusively by the manufacturer’s authorised service
centre using original spare parts. Non-compliance with the above requirements may compromise the safety of
the appliance and invalidate the warranty. In order to guarantee the efficiency of the appliance and its correct
operation, it must be serviced regularly by professionally qualified personnel in line with the manufacturer’s
instructions.
• When the appliance is no longer required for use, any parts that may constitute potential sources of danger must
be rendered harmless.
• Only original accessories or optional extras (including electrical parts) must be used with the appliance.
• Should there be a smell of gas present in the room where the appliance is installed, DO NOT attempt to activate
any electric switches, telephones or any other equipment that may cause sparks. Open doors and windows
immediately to create a current of air and ventilate the room. Shut-off the main gas supply valve (at the meter),
or on the cylinder in the case of bottled gas, and call an authorised service centre.
• Do not attempt to interfere with the appliance in any way.
1
GENERAL INFORMATION
• As dictated by current legislation, this appliance must be installed exclusively by qualified authorised
personnel. Before starting the boiler for the first time, make sure that it is connected to a water supply and
central heating system compatible with its performance characteristics.
• The room must be ventilated by means of an air intake positioned at floor level and protected with a grill. Make
sure the grill does not reduce the passage section.
• The air inflow from adjacent rooms is allowed providing that those rooms are in depression with respect to the
atmosphere and that there are not fireplace or fan installed. When the appliance is installed outdoor, i.e. on
balcony or terrace, make sure it is not directly exposed to atmospheric agents to prevent any damage to
components which would lead to a warranty invalidation. It is recommended to provide the boiler with a
protective casing/box against bad whether conditions.
• Check the technical data reported on the packing and on the rating plate located on the inside of the front
casing. Also check that the burner is appropriate for the type of gas to burn.
• Make sure that the pipes and fittings used for the gas service are installed in accordance with
AS/NZS5601 perfectly tight and that there are no gas leaks.
• Prior to start-up, the central heating pipes should be flushed to remove any residues that could compromise the
operation of the appliance.
• The appliance can be regarded as being electrically safe when it has been connected to an efficient earth
system installed in accordance with the requirements of current safety standards. This fundamental safety
requirement must be checked and verified. In case of doubt, have the electrical system checked by a qualified
electrician. The manufacturer will not be held liable for any damage or injury caused as a result of an ineffective
or non-existent earth system.
• The domestic power supply must be checked by a qualified electrician to ensure that it can support the
maximum power absorption of the appliance, as indicated on the appliance data plate (positioned on the inside
of the front casing). In particular, make sure that the cable ratings are adequate for the power absorbed.
• Do not use adapters; multiple sockets or extension leads to connect the appliance to the mains power supply.
• The appliance must be connected to the mains power supply through an appropriate electrical isolator in
accordance with the current wiring regulations.
• When using an electrical appliance, a few fundamental rules must be observed:
• Do not touch the appliance with damp or wet parts of the body or when barefoot
• Do not pull on the electric wires
• Do not leave the appliance exposed to atmospheric elements (rain, sun, etc,) unless these conditions have been
expressly provided for.
• Do not allow the appliance to be used by children or anyone unfamiliar with its operation.
• The user must not replace the power supply cable.
• If the cable is damaged in any way, switch off the appliance and have the cable replaced by a suitably qualified
electrician.
• When the appliance is no longer required for use, switch off the main power supply, to switch all
electrical components off (circulating pump, burner etc.)
2
GENERAL INFORMATION
1.2 Product conformity
RADIANT BRUCIATORI S.p.A. declares that all its products are manufactured to a high specification and in
compliance with the relevant standards.
All RADIANT boilers are CE certified and possess technical and functional characteristics that comply with the
following standards:
UNI EN 297 for GAS-FIRED CENTRAL HEATING BOILERS TYPE B OF NOMINAL HEAT INPUT ≤ 70 kW
EN 483 for GAS-FIRED CENTRAL HEATING BOILERS TYPE C OF NOMINAL HEAT INPUT ≤ 70 kW
UNI EN 677 for GAS-FIRED CENTRAL HEATING BOILERS. SPECIFIC REQUIREMENTS FOR CONDENSING
BOILERS WITH NOMINAL HEAT INPUT ≤ 70 kW
Gas fired boilers also comply with the following directives:
GAS APPLIANCES DIRECTIVE 90/396 CEE for CE compliance
LOW VOLTAGE DIRECTIVE 2006/95 CEE
ELECTROMAGNETIC COMPATIBILITY DIRECTIVE 2004/108 CEE
BOILER EFFICIENCY DIRECTIVE 92/42 CEE
The materials used such as copper, brass, stainless steel, etc. form a compact, homogeneous, highly functional
unit that is easy to install and simple to operate. In its simplicity, the wall-mounted appliance is equipped with all the
appropriate accessories required to make it a fully independent boiler capable of satisfying domestic hot water
production and central heating needs. All boilers are fully inspected and are accompanied by a quality certificate,
signed by the inspector, and a guarantee certificate. This manual must be kept in a safe place and must
accompany the boiler at all times.
RADIANT BRUCIATORI S.p.A. will not be held responsible for any misinterpretation of this manual resulting
from the inaccurate translation of same.
RADIANT BRUCIATORI S.p.A. will not be held responsible for the consequences in the case of nonobservance of the instructions contained in this manual or in the case where actions not specifically
described herein are undertaken.
Radiant Bruciatori S.p.A. declare that no substances harmful to health are contained in the appliance or
used during appliance manufacture and have not used or intend to use any of the following substances in
the manufacture of Radiant heating products.
− Asbestos
− Mercury
− CFC's.
3
TECHNICAL CHARACTERISTCS
2. TECHNICAL CHARACTERISTICS
2.1 Technical data
Model
RK 34/B
CE Certification
Appliance Type
Appliance Category
Heat Input max
Heat Input min
Heat Output max (50/30°)
Efficiency 100% (full load 50/30°)
Efficiency 30% (partial load 50/30°)
Heat Output max - 80/60°C (Non condensing)
Heat Output min - 80/60°C (Non condensing)
Efficiency 100% (full load 80/60°)
Efficiency 30% (partial load 80/60°)
GAS DIRECTIVE 92/42/ECC - Efficiency marking
n°
0694BN3485
kW
kW
kW
%
%
kW
kW
%
%
stars
34
10
36.24
106.6
107.9
33.42
9.73
98.3
100.7
4
Central Heating circuit
Central Heating water temperature setting (min-max)
Max. heating working temperature
Expansion vessel capacity
Max. working pressure (heating)
Min. working pressure (heating)
°C
°C
litres
bar
bar
30-80
95
7
3
0.3
Domestic Hot Water circuit
D.H.W. temperature setting (min-max)
Max. Hot water working pressure
Min. Hot water working pressure
D.H.W. flow rate at ∆T 30°C
°C
bar
bar
l/min
35-60
6
0.5
16.63
Dimensions (Boiler casing size)
Width
Height
Depth
Weight (net)
mm
mm
mm
kg
410
730
310
42
Ø
Ø
Ø
Ø
Ø
Ø
¾”
¾”
¾”
¾”
½”
¾”
Ø mm
m
125/80
8
kPa
MJ/h
1.13
130.5
kPa
MJ/h
2.75
130.5
V/Hz
W
IP
230/50
180
X4D
Hydraulic connections
Central Heating Flow connection
Central heating Return connection
Central heating flow connection to DHW storage cylinder
Central heating return connection from DHW storage cylinder
Cold water inlet
Gas connection
Flue systems
Horizontal-Concentric flue system
Max. Flue length
Gas Supply
Natural gas G 20
Inlet pressure
Gas consumption
Universal LPG
Inlet pressure
Gas consumption
Electrical specifications
Power supply
Electrical power consumption
Electrical protection
4
TECHNICAL CHARACTERISTCS
2.2 Dimensions
410
290
60
730
730
15
60
CWI
HF
HR
G
25
RCR
RCF
CWI
G
HR
49
148
80
110
20
HF
102
105
31
310
45
RCR
310
132
RCF
162
140
108
LEGEND
HR
HEATING RETURN
Ø 3/4”
HF
HEATING FLOW
Ø 3/4”
RCR
REMOTE D.H.W. CYLINDER RETURN
Ø 3/4”
RCF
REMOTE D.H.W. CYLINDER FLOW
Ø 3/4”
CWI
COLD WATER INLET
Ø 1/2”
G
GAS
Ø 3/4”
SC
CONDENSATE DRAIN
Ø 25
5
TECHNICAL CHARACTERISTCS
Storage tank 150 lt.
X-X' SECTION
100
Ø16 STAINSTELL
PIPE
BRACKET
B
C
C
H
H/2
B
30
H/2
30
A
A
H6
BRACKET
G 3/4"
polyurethane
foam insulation
Dm
X
G
MODEL
D
E
F - (ANODE)
X'
6
U.M
150
Storage cylinder capacity
Lt
150
Storage cylinder exchange area
mq
1
Circulation pump
lt/h
2860
Heat Input max
kW
53
Hot water flow rate Dt 30°
Lt/h
1149
Externa diameter (De)
mm
510
Internal diameter (Di)
mm
450
H
mm
440
H1
mm
334
H2
mm
774
H3
mm
1113
H4
mm
175
H5
mm
633
H6
mm
162
A
mm Ø3/4"
B
mm Ø3/4"
C
mm Ø3/4"
D
mm Ø1/2"
E
mm Ø1/2"
Max. heating working pressure
bar
Max. Hot water working pressure
bar
6
Max. temperature
°C
99
12
TECHNICAL CHARACTERISTCS
2.3 Internal parts of the boiler
17
16
1
4
2
3
13
12
7
6
11
14
10
24
22
16
18
8
5
4
5
1
2
9
12
6
25
9
25
20
26
15
21
19
23
LEGEND
1.
PRIMARY CONDENSING HEAT EXCHANGER
2.
PREMIX BURNER UNIT (GAS MANIFOLD+BURNER))
3.
PRIMARY CONDENSING HEAT EXCHANGER CONDENSATE DRAIN PIPE
4.
IONISATION ELECTRODE
5.
IGNITION ELECTRODE
6.
FAN
7.
VENTURI
8.
IGNITION TRANSFORMER
9.
ELECTRONIC GAS VALVE
10. 3 BAR PRESSURE RELIEF VALVE - HTG CIRCUIT
11. AUTOMATIC AIR VENT VALVE
12. HEATING SAFETY THERMOSTAT
13. HEATING SENSOR
14. PUMP WITH AIR VENT
15. WATER PRESSURE SWITCH
16. FLUE HOOD
17. SAFETY THERMO FUSE
18. EXPANSION VESSEL
19. ROOM SEALED CHAMBER BACK SIDE
20. CONDENSATE TRAP
21. WATER PRESSURE GAUGE
22. AUTOMATIC BY-PASS
23. CONDENSATE DRAIN PIPE
24. SYSTEM DRAIN VALVE
25. 3-WAY VALVE
26. FILLING TAP
7
22
TECHNICAL CHARACTERISTCS
2.4 Water circuit
16
17
13
12
8
2
4
18
1
3
5
7
6
19
LEGEND
20
9
1.
PRIMARY CONDENSING HEAT EXCHANGER
23
2.
PREMIX BURNER UNIT (GAS
MANIFOLD+BURNER)
11
3.
PRIMARY CONDENSING HEAT EXCHANGER
CONDENSATE DRAIN PIPE
4.
IONISATION ELECTRODE
14
10
22
24
5.
IGNITION ELECTRODE
6.
FAN
7.
VENTURI
8.
IGNITION TRANSFORMER
9.
ELECTRONIC GAS VALVE
25
21
15
26
10. 3 BAR PRESSURE RELIEF VALVE - HTG CIRCUIT
LEGEND
11. AUTOMATIC AIR VENT VALVE
HR
HEATING RETURN
13. HEATING SENSOR
HF
HEATING FLOW
14. PUMP WITH AIR VENT
RCR
REMOTE D.H.W. CYLINDER RETURN
15. WATER PRESSURE SWITCH
RCF
REMOTE D.H.W. CYLINDER FLOW
16. FLUE HOOD
CWI
COLD WATER INLET
G
GAS
SC
CONDENSATE DRAIN
12. HEATING SAFETY THERMOSTAT
17. SAFETY THERMO FUSE
18. EXPANSION VESSEL
19. ROOM SEAL CHAMBER BACK SID
20. CONDENSATE TRAP
21. WATER PRESSURE GAUGE
22. AUTOMATIC BY-PASS
23. CONDENSATE DRAIN PIPE
24. SYSTEM DRAIN VALVE
25. 3-WAY VALVE
26. FILLING TAP
8
TECHNICAL CHARACTERISTCS
Water circuit (installation example)
REMOTO LCD
EXTERNAL SENSOR
code 73506LA
SC G
HR
RCR
RCF
HF
STORAGE CYLINDER DHW
TEMPERATURE SENSOR
code 31368LA (SUPPLIED
WITH THE BOILER)
REMOTE DHW CYLINDER
code 20045LA
NOTE
THERE IS A STRAINER ON THE HEATING CIRCUIT..
THE INSTALLATION OF AN ADDITIONAL STRAINER ON THE
SECONDARY CIRCUIT IS RECOMMENDED.
CONTROL THERMOMETER
NON RETURN VALVE
MEMBRANE EXPANSION
TANK, SEALED CHAMBER
4 bar SAFETY VALVE
SHUTTER
9
TECHNICAL CHARACTERISTCS
Head (kPa)
2.5 Circulation pump head/flow graph
III
II
I
Flow l/h
III
II
I
Pump head at maximum speed
Pump head at second speed
Pump head at minimum speed
10
TECHNICAL CHARACTERISTCS
2.6 DIGITECH 2® printed circuit board – SM30003
Technical characteristics
Adjustments possible by service personnel only
• Standard (30/80°C) / reduced (25-40°C) central heating temperature
• Water hammer prevention function
• Central Heating timer - (adjustable from 0 to 7,5 minutes)
• Central Heating pump overrun timer
• Domestic Hot Water pump overrun timer
• Minimum Gas pressure setting
• Maximum Heating Load
• Heating output rising time
User settings
• On/Off
• Heating Temperature setting (30-80°C) – (25-40°C)
• D.H.W. temperature setting (35-60°C)
• Summer only mode / Winter only mode / Summer + Winter mode selection
Operation/Functions display
• Lock-Out
• Water deficiency indicator
• Temperature display
When the boiler is switched off at the switch on the control panel, the word OFF appears on the display.
The D.H.W and central heating frost protection system, nevertheless, remain enabled. If the boiler was
previously on, it is switched off and the post-ventilation, pump overrun , circulation pump and threeway valve inactivity protection functions are enabled.
The remote control, where fitted, remains active and illuminated.
2.7 Control panel
LEGEND
1.
8
ON/OFF SWITCH
2. HEATING TEMPERATURE CONTROL KNOB
3.
D.H.W TEMPERATURE CONTROL KNOB.
4.
D.H.W TEMPERATURE BUTTON. KEEP PRESSED
FOR 5 SECONDS TO DISPLAY OUTSIDE
TEMPERATURE (ONLY WITH OPTIONAL OUTDOOR
SENSOR)
5.
SERVICE BUTTON.
6.
SUMMER, WINTER OR SUMMER/WINTER MODE
SELECTION BUTTON.
7.
TERMINAL BOARD FOR EXTERNAL WIRING.
8.
TEMPERATURE, ERROR CODE AND OPERATING
STATUS DISPLAY
1
11
2
3
4 5 6
7
INSTALLATION INSTRUCTIONS
3. INSTALLATION (authorised personnel)
3.1 Reference standard
This appliance meets the requirements of:
AS 4552-2005 Gas fired water heaters for Hot water supply and/or Central Heating
- IPX4D rating for electrical appliances.
- EMC DIRECTIVE 89/336 CEE
- LVD DIRECTIVE 73/23 CEE
- BOILER EFFICIENCY DIRECTIVE 92/42 CEE
Failure to install a gas appliance correctly and in accordance with the above norms could lead to prosecution. It is in
the interest of the installer and safety that the law is complied with.
The manufacturers instructions form an integral part of the installation and should be left with the appliance but do
not over ride in anyway statutory obligations.
3.2 Installation requirements
Please refer to local and national standards in force in the Country of destination of the product. In particular the
manufacturer recommends: : Installation must be in accordance with the following; Manufacturer’s installation
instructions, AS5601.1 ‘gas installations’ for installation and pipe sizing, local gas fitting regulations, Municipal
building codes, Local electrical regulations and any other Statutory regulation.
For Australia – refer to AS 5601 and local authority for minimum clearances as illustrated below:
The presence of threaded connections on the gas line, require that the room in which the appliance is
installed is ventilated by means of air intakes.
12
INSTALLATION INSTRUCTIONS
3.3 Unpacking
■ The materials (cardboard) used for packing the appliance are fully recyclable.
■ It is recommended that the packing material is only removed prior to installing the boiler. The
manufacturer will not be held responsible for damage caused by incorrect storage of the product.
■ Packing materials (plastic bags, polystyrene, nails, etc.) must not be left within reach of children, in that
these items represent a potential hazard.
A. Place
the
packed
appliance on the floor (see fig.
1) making sure that the "up”
arrow is facing down. Remove
the staples and open out the
four flaps of the box.
A
B
B. Rotate the boiler 90° while
manually supporting it from
underneath
C. Lift the box and remove the
protections. Lift the boiler by
grasping the rear part and
proceed with the installation.
STORAGE & HANDLING
C
Please note that prior to
installation the Radiant boilers
should be stored in the
horizontal position with no
more than three boilers to a
stack;
Ensure that the boilers are
stored in dry conditions and be
aware that the carton is a towman lift;
Fig. 1
13
INSTALLATION INSTRUCTIONS
3.4 Installing the boiler
■
Y
H
■
L
X
A
■
The
appliance
must
be
installed
exclusively on a flat vertical solid wall
capable of supporting its weight.
The boiler should be fitted within the building
unless otherwise protected by a suitable
enclosure i.e. garage or outhouse. (the boiler
may be fitted inside a cupboard.
If the boiler is sited in an unheated enclosure
then it is recommended to leave the power on
to give frost protection (frost protection is
active even with on/off switch in off position).
If the boiler is installed in a room containing a
bath or shower reference must be made to
the relevant requirements.
D IS T A N C E S [m m ]
B
■
X
Y
L
H
A
B
60
60
410
10 00
20 0
30 0
Fig. 1
Note: Flue Terminal Locations must
also comply with Section 6.9 of AS/NZS
5601.1:2010
In order to allow access to the interior of the
boiler for maintenance purposes, it is important
that the necessary clearances indicated in figure
1 are respected. To make the installation easier,
the boiler is supplied with a template to enable
the pipe connections to be positioned prior to
fixing the appliance to the wall.
To install the boiler, proceed as follows (see fig.
2):
a. Use a spirit level (of not less than 25 mm
long) to mark a horizontal line on the wall
where the boiler is to be fitted.
b. Position the top of the template along the line
drawn with the level, respecting the distances
indicated. Then mark the centres of the
positions of the two wall-plugs or anchors.
Finally, mark the positions of the water and
gas pipes.
Fig. 2
c. Remove the template and install the domestic
hot and cold water pipes, the gas supply pipe and the central heating pipes using the fittings supplied with the
boiler.
Fix the boiler to the wall using the wall plugs or bracket and connect the pipes.
14
INSTALLATION INSTRUCTIONS
3.5 Water connections
Isolation Valves must be installed on the
heating and D.H.W circuits. This will facilitate
all maintenance and service operations where
the boiler needs to be drained.
20
Make sure that the domestic water and
central heating pipes are not used to earth the
electrical system. The pipes are totally
unsuitable for this purpose.
105
In order to safeguard the heat exchanger and
circulation pump, especially in case of boiler
replacement, it is recommended that the
system is hot-flushed to remove any
impurities (especially oil and grease) from the
pipes and radiators.
110
RCR
148
■ To prevent vibration and noise coming from
■ the system, do not use pipes of reduced diameter,
short radius elbows or severe reductions in the
cross sections of the water passages.
49
Fig. 1
35
HR
RCF
80
G
31
102
CWI
HF
■ To facilitate the installation, the boiler is supplied
with an hydraulic connection kit (see fig.2).
HF
CWI
Domestic hot water circuit
■ In order to prevent scaling and eventual damage to
the D.H.W heat exchanger, the mains water supply
must not have a hardness rating of more than 17.5
°Ck. It is nevertheless advisable to check the
properties of the water supply and install the
appropriate treatment devices where necessary.
HWO
HR
G
The cold water supply pressure at the inlet to the
boiler must be between 0.5 and 6 bar.
In areas with higher water inlet pressure a
pressure reducing valve must be fitted before the
boiler.
The frequency of the heat exchanger coil cleaning
depends on the hardness of the mains water supply
and the presence of residual solids or impurities,
which are often present in the case of a new installation.
If the characteristics of the mains water supply are
such that require it to be treated, then the
appropriate treatment devices must be installed, while
in the case of residues, an in-line filter should be
sufficient.
All D.H.W. circuits, connections, fittings, etc. should be
fully in accordance with relevant standards
and water supply regulations.
Fig. 2
LEGEND
HR
HEATING RETURN
HF
HEATING FLOW
RCR
REMOTE D.H.W. CYLINDER RETURN
RCF
REMOTE D.H.W. CYLINDER FLOW
CWI
COLD WATER INLET
G
GAS
15
INSTALLATION INSTRUCTIONS
Central heating circuit
In order to prevent scaling or deposits in the primary heat exchanger, the mains supply water to the heating circuit must be
treated according to the requirements of local standards.
This treatment is indispensable in the case where the circuit is frequently topped-up or when the system is often either partially
or fully drained.
The outlet connection of the boiler safety valve must be connected to a discharge trap. The manufacturer will not be
held responsible for flooding caused by the operation of the safety valve in the case of system overpressure.
Condensate Drain
The condensate drain flexible pipe supplied with the boiler (conforming to UNI EN 677 standard) must be connected
to a proper condensate trap. The condensate discharge into the drainage system is allowed providing a condensate
trap (siphon) is installed.
Any condensate discharge pipe work external to the building (or in an unheated part of it) must be insulated to
protect against frost. Before switching the boiler On, check the correct condensate discharge.
3.6 Gas Connection
The connection to the gas supply must be carried out by professionally qualified personnel in
accordance with relevant standards:
When connecting the boiler to the gas supply pipe, only use appropriate washers and gas fittings. The
use of hemp, Teflon tape and similar materials is not allowed.
Before installing the boiler, check the following:
■ The pipe work must have a section appropriate for the flow rates requested and the pipe lengths installed, and
must be fitted with all the safety and control devices provided for by current standards. For Australia refer to
AS5601.
■ The gas supply line must be a minimum of a 22 mm diameter pipe with an uninterrupted supply from meter to
boiler and comply with current standards and regulations.
■ Check the internal and external seals of the gas supply system.
■ A gas shut-off valve must be installed upstream of the appliance
■ The gas pipe work must have and bigger or equal section to the one of the boiler.
■ Before starting up the boiler, make sure that the type of gas corresponds to that for which the appliance has
been set-up (see gas type label inside the boiler).
■ The gas supply pressure must be between the values reported on the rating plate (see gas type label inside the
boiler).
■ Prior to installation, it is good practice to ensure that there are no machining residues on the gas supply pipe.
■ Conversion of the appliance from natural gas to LPG or vice versa must be carried out by qualified authorised
personnel.
16
INSTALLATION INSTRUCTIONS
3.7 Electrical connections
General warnings
The connection to the mains power supply must be carried out by professionally qualified personnel,
registered in accordance with current legislation and authorised by Radiant Bruciatori S.p.a.
Always check to make sure that the appliance has an efficient earth system. This requirement is only
satisfied if it has been properly connected to an efficient earth system installed in accordance with the
requirements of current safety standards and carried out by professionally qualified personnel.
This basic safety measure must be checked, verified and carried out by professionally qualified personel.
In case of doubt, have the electrical system checked by a qualified electrician. The manufacturer will not be
held liable for any damage or injury caused as a result of an inefficient or inexistent earth system;
■ The boiler functions with an alternating current of 230 V and 50 Hz and has maximum power absorption of 180
W. The appliance should be protected by a 3 A fuse. The connection to the mains electricity supply must be
via a single-pole switch, with at least 3 millimetres gap between open contacts, mounted upstream of the
appliance. Make sure that the positions of the live and neutral wires correspond to the wiring diagram;
■ Ensure the domestic power supply is checked by a qualified electrician to ensure that it can support the
maximum power absorption of the appliance, as indicated on the rating plate. In particular, make sure that the
cable sizes are adequate for the power absorbed by the appliance;
■ The power supply cable must not be replaced by the user. if the cable is damaged in any way, switch off the
appliance and have the cable replaced by a suitably qualified electrician;
■ When replacing the power supply cable, only use cables of the same characteristics (HO5 VV-F 3x1) with
maximum external Ø 8 mm;
When using an electrical appliance, a few fundamental rules must be observed:
•
Do not touch the appliance with damp or wet parts of the body or when barefoot.
•
Do not pull on the electric wires.
•
Do not leave the appliance exposed to atmospheric elements (rain, sun, etc,) unless these conditions have
been expressly provided for.
•
Do not allow the appliance to be used by children or anyone unfamiliar with its operation;
17
INSTALLATION INSTRUCTIONS
Remote control connection
Connect the power supply to the terminal board inside the control panel as follows:
a.
b.
c.
d.
Switch off the power supply at the main switch.
Remove the front case panel of the boiler.
Slacken the screws and remove plate A (see fig. 1).
With the plate removed, connect the wires to the terminal board B as follows:
•
Connect the earth wire (normally coloured green/yellow) to the terminal marked with the earth symbol “
•
Connect the neutral wire (normally coloured blue) to the terminal marked with the letter “N”.
•
Connect the live wire (normally coloured brown) to the terminal marked with the letter “L”.
•
Terminals identified by the letters:
Ta ⇒ Room thermostat
Se ⇒ Outside temperature sensor
L
N
Ta Ta Se Se
When the wires have been connected, place plate “A" back to position.
Fig. 1
18
A
B
“.
INSTALLATION INSTRUCTIONS
3.8 Flue connections
In order to ensure that the appliance functions correctly
and efficiently, the flue connection between the boiler
and the flue terminal must be made using original
components specifically designed for condensing
boilers.
Traditional flue components cannot be used for
conveying exhaust fumes from condensing boilers, nor
vice versa.
● In order to make the choice of which flue to install easier, in
addition to being drawn differently, the above-mentioned
system is also differentiated in the flue catalogue and general
price list by the insertion of the words “…in polypropylene…” .
● It is recommended that:
o
for the exhaust discharge duct, the entire length of the flue
slopes upwards towards the exterior in order to facilitate the
flow of condensate back to the combustion chamber, which
has been specifically designed to collect and drain the acidic
condensate;
o
for the air intake, the entire length of the duct slopes upwards
towards the boiler to prevent the entry of rainwater, dust or
foreign bodies into the pipe;
o
in case of a vertical flue pipe installation, a condensate trap
is fitted at the base of the flue installation and connected into
drainage system (see fig. 1);
Fig. 1
● In the case where a horizontal coaxial system is installed, the
coaxial terminal must be positioned horizontally in that the
exhaust duct has been specifically designed with the required
slope and the air intake has been suitably protected against the
weather;
Fig. 2
Flue Duct connection
Connect the flue to the chimney according to the following specification:
● Do not allow the exhaust flue to protrude inside the chimney; instead terminate it before it reaches the flue duct;
● The exhaust flue must be perpendicular to the opposite wall of the flue duct (see fig. 2).
19
INSTALLATION INSTRUCTIONS
Flue type kit 50-00115
Horizontal concentric flue kit Ø80/125 mm polypropylene inner pipe adjustable through 360°.
Discharges exhaust fumes and draws air from atmosphere.
Suitable for condensing boilers only. Discharges
exhaust gases and draws combustion air by
means of two concentric ducts. The external Ø125
duct draws the combustion air while the Ø80
plastic inner duct discharges the exhaust fumes.
The discharge duct can be connected directly to
the outside or can be connected to a suitable
combined flue system.
MAXIMUM FLUE LENGTH: 8 m
The maximum flue length (linear equivalent) is
obtained by summing the length of linear pipe
and the equivalent lengths of each bend fitted.
The linear equivalent is intended as being the total
length of the duct from the connection with the
combustion chamber of the appliance, excluding
the first bend.
The linear equivalent of additional bends is as
follows:
Ø 80/125 x 90° bend = 0.8 m.
Ø 80/125 x 45° bend = 0.5 m.
N.B.: USE ONLY RADIANT TYPE-APPROVED FLUE SYSTEMS FOR DISCHARGING EXHAUST GASES AND DRAWING
COMBUSTION AIR.
132
Ø125
Ø80
90
162
20
INSTALLATION INSTRUCTIONS
4. COMMISSIONING THE APPLIANCE
4.1 General warnings
The following operations must be carried out by professionally qualified personnel, registered in
accordance with current legislation.
The boiler leaves the factory pre-set and tested for burning either natural Gas or LPG. Nevertheless,
when starting the boiler for the first time, make sure that the information on the rating plate
corresponds to the type of gas being supplied to the boiler.
Once the system has been filled and the necessary adjustments made, remember to tighten the screws
of the gas valve test point and make sure that there are no gas leaks from the test point and from any
pipe fittings upstream of the gas valve.
Preliminary operations
Switching the boiler on for the first time means checking that the installation, regulation and operation of the
appliance are correct :
• If the gas supply system is newly installed, then the air present in the pipes can cause the boiler not to light at the
first attempt. A number of attempts may be required in order to light the boiler;
• Check that the data on the data plate corresponds to that of the mains supply networks (gas, electricity, water);
• Check that the power supply voltage to the boiler complies with the data plate (230 V – 50 Hz) and that the live,
neutral and earth wires are connected properly. Also make sure that the earth connection is sound;
• Check the seals on the gas supply pipe from the mains, and make sure that the meter does not register any flow
of gas;
• Turn the gas supply on and purge.
• Test for gas soundness.
• Check that the gas supply is correctly sized for the flow rate required by the boiler and that it is fitted with all the
safety and control devices as lay down by current regulations
• Check that the supply of combustion air and exhaust and condensate discharge systems are functioning
correctly and in line with current law and national and local standards;
• Check for the presence of permanent aeration/ventilation openings as required by current law for the type of
appliances installed.
• Check that the flue duct and its connections to the terminal/chimney comply with the requirements of current law
and national and local standards for the type of appliances installed.
• Make sure that any central heating shut-off valves are open.
• Check that the condensate drain system, including outside the boiler (flue system condensate collection
devices), allows the condensate to flow freely to the collection devices. If the condensate is discharged to the
domestic drainage system, install an inspection trap in the condensate system prior to it entering the drainage
system to interrupt the continuity between the two systems.
• Check that there are no exhaust fumes discharged into the system itself.
• Check that there are no flammable materials or liquids in the immediate vicinity of the boiler;
• Flush out both primary and domestic hot water circuits (see 4.3 “ Flushing the system”).
21
INSTALLATION INSTRUCTIONS
4.2 Filling the system
Check the properties of the water supply and install the
appropriate treatment devices if the mains water has a
hardness rating more than 17.5 °Ck in order to prevent
scaling and eventual damage to the D.H.W heat exchanger.
AIR VENT VALVE
AIR VENT VALVE PLUG
PUMP
PUMP PLUG
Use only clean tap water to fill the system.
Once the water pipes have been connected, close the gas feed valve
and fill the system as follows:
•
Check that the circulation pump runs freely;
•
Check that the plug of the air vent valve has been slackened slightly
to allow air to escape from the system (fig.1);
•
Open the main domestic water supply valve;
•
Open the filling tap R (fig. 2);
•
Unscrew the plug on the pump to remove any trapped air, check
that the pump is free then re-tighten it when water starts to flow out
(fig.1);
•
Before switching on the boiler, purge air completely from the
air vent valve positioned on the top of the condensing
exchanger (fig.3)
•
Open the air vents on the radiators and monitor the air evacuation
process. When water starts to flow out of the radiators, close the air
vents;
•
Use the pressure gauge M (fig. 2), to check that the systems
pressure reaches the middle of the green area (equal to 1,2 bar,
see fig. 4).
•
On completion, make sure that the filling tap R is perfectly
closed.
1
R M
2
3
GREEN AREA
1.5 bar
1.2 bar
0.5 bar
4
22
3 bar
INSTALLATION INSTRUCTIONS
4.3 Flushing the system
Failure to flush and add inhibitor to the system will invalidate the appliance working.
All systems must be thoroughly drained and flushed out using additives – corrosion inhibitors and flushing
agents/descalers .
To flush out the primary side of this unit.
a. Fill the boiler as per the filling instructions.
b. Using a drain off cock on the lowest point of the system allow the water to drain from the system and boiler.
c. In order to flush the system correctly turn off all radiators open the filling loop and drain cock simultaneously and
allow the water to flow through the boiler.
d. Open each individual radiator allowing water to flow through then turn that radiator off and repeat for all radiators
on the system.
e. Turn off the filling loop and close the drain cock open all radiators and open the filling to fill the system.
f. Continue to fill the system until the pressure gauge reaches 1 bar.
To flush out domestic hot water circuit.
a. Ensure that the DHW expansion vessel has been fitted in line with the instructions on page 14 of the manual.
b. Open all hot water outlets.
c. Turn on inlet group supply so water enters the boiler; leave to fill until water is released from the hot water
outlets. Turn off all hot water outlets.
d. Connect a hosepipe to the cylinder drain cock and open the drain cock.
e. Allow water to flow through the boiler and out of the drain cock.
f. Turn off water supply, disconnect the hosepipe, close the drain cock and refill the boiler.
4.4 Filling the condensate trap
The condensation trap must be pre-filled when
starting the boiler for the first time in order to
prevent flue gases from flowing back through
the trap.
Fig. 1
The filling operation is carried out as follows
(see fig. 1):
• Remove plug T and fill the trap S three
quarters full with water;
• Replace plug T and connect the drainpipe
P into a condensate discharge trap
conforming to current legislation;
T
S
Attention! It is recommended to clean the
condensate trap, after a few months of boiler
operation, to remove deposits/residuals left
after the first condensate passage within the
boiler new components that may interfere with
the correct operation of the trap itself.
23
INSTALLATION INSTRUCTIONS
4.5 Starting up the boiler
Once the system has been filled, proceed as
follows:
• Check that the exhaust flue is free of
obstructions and correctly connected to the
boiler;
• Switch on the power supply to the boiler;
• Open the gas isolation valve;
Table n°1
Gas type
CO2 %
Natural Gas
9.18
Universal LPG
10.3
• Place switch 1 in the ON position (see 2.7
“Control Panel”), after a few seconds the
circulating pump will start to run;
• Use button 6 to set the SUMMER, WINTER
or SUMMER/WINTER function. The symbols
will light up (fixed light) to indicate that the
boiler is working;
PF
• The automatic ignition system will then light the
burner. This operation is repeated for 2 times. It
may however be necessary to repeat the
operation in order to eliminate all the air from the
pipes.
To
repeat
the
operation,
wait
approximately three minutes before re-attempting
to light the boiler. To reset the boiler Switch off
switch 1 (see 2.7 “Control Panel”) and switch it
back on again and repeat the lighting procedure;
• With the boiler ignited, if the system still emits
noises, the operations must be repeated until all
the air has been removed;
• Check the pressure in the system. If the pressure
has fallen, re-open the filling tap until the code
H2O disappears on the display and the pressure
reaches the middle of the green area (1,2 bar).
On completion, close the filling tap.
V
• Unscrew the aluminium plug and insert an
analyser in the exhaust sampling point PF (see
fig. 1) to check the CO2 value. Make sure that the
value complies with that reported in table 1;
• If the CO2 value does not correspond to the
specified value, adjust screw V (see fig. 1) on the
venturi clockwise to reduce the CO2 value or
anticlockwise to increase it;
Fig. 1
24
REGULATION INSTRUCTIONS
5. REGULATING THE APPLIANCE
5.1 Parameters table
PARAMETER N°
TYPE OF OPERATION
PARAMETER
VALUE
00
01(default)
02
03
04
00
01
02
00
01
00
01
00
01(default)
02
03
04
00
01
00
01
P00
Selects the model of boiler
P01
Selects the type of boiler
P02
Selects the type of gas
P03
Sets the central heating
temperature
P04
Heating output rising time
P05
Water hammer prevention
function
P06
D.H.W priority function
P07
Central heating timer
00-90 (default =
36)
P08
Central heating pump overrun
timer
00-90 (default =
36)
P09
D.H.W pump overrun timer
00-90 (default =
18)
P10
Minimum fan speed setting
Preset
P11
Maximum fan speed setting
Preset
P12
Minimum fan speed setting
(Central Heating)
Preset
P13
Maximum fan speed setting
(Central Heating)
Adjustable
P14
Ignition sequence setting
33-203
P15
Zone management board
activation
P16
Telephone control activation
P17
Fan frequency value display
00
01
00
01
00
01
FUNCTION
00 = 18Kw
01 = 25Kw
02 = 29Kw
03 = 34 Kw
04 = 50 Kw
00 = Instantaneous
01 = Boiler with storage tank
02 = B. w/storage tank Comfort (+7°C)
00 = Natural gas
01 = Lpg
00 = Standard (30-80°C)
01 = Reduced (25-40°C )
00 = 0sec
01 = 50 sec
02=100 sec
03=200 sec
04=400 sec
00 = Off
01 = On
00 = Off
01 = On
Delays the heating restart to prevent
frequent On/Offs, Expressed in steps of 5
sec (factory set at 36 x 5 = 180”)
The overrun timer can be modified.
Expressed in steps of 5 sec (factory set
at 36 x 5 = 180”)
The overrun timer can be modified.
Expressed in steps of 5 sec (factory set
at 18 x 5 = 90”)
To set the minimum frequency value (Hz)
for the fan operation
To set the maximum frequency value
(Hz) for the fan operation
To set the minimum frequency value (Hz)
for the fan operation in heating mode
To set the maximum frequency value
(Hz) for the fan operation in heating
mode
To set the fan frequency value (Hz) at the
ignition
00 = Off
01 = On
00 = Off
01 = On
00 = Off
01 = On
NOTES:
P04 – This parameter allows to change the time of the boiler to reach the maximum heating load.
P10, P11, P12 – These parameters are automatically adjusted according to the value set in parameter P00.
P13 – It’s possible to adjust the boiler’s maximum heating load according to the paragraph “Heating power (Kw) – Fan
frequency (Hz)” diagram.
P15 - If the heating system has more than one zone, an additional interface board (optional extra) must be installed on
the circuit board and parameter 15 set at 01.
P16 - To install the telephone control, use non-polarised conductors connected to contact TA of the terminal board in
parallel with the remote control if fitted. Set the parameter 16 at 01.
25
REGULATION INSTRUCTIONS
5.2 Setting the parameters
To modify the preset values of the parameters reported in the previous table, open the parameter
settings menu as follows:
1. Place the On/Off switch in the OFF position.
OFF
S
2. Activate the On/Off switch while keeping
buttons ‘+’ and “-“ pressed. Wait for “P 00”
to appear on the display.
3. Release buttons ‘+’ and ‘-’.
P 00
S
4. Keep button ‘S’ pressed and use button ‘+’
to select the parameter to modify.
P 00
S
5. Release button ‘S’, then re-press and
release it. The display will indicate the value of
the parameter to modify.
P 01
S
Adjust the value of the parameter using the procedure described in the following pages.
To enter the parameters menu, follow the previously described procedure (steps 1-5).
26
REGULATION INSTRUCTIONS
PARAMETER P00 – SELECTS THE MODEL OF BOILER
01
S
P 00
S
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter:
00 = 18 Kw
01 = 25 Kw (default)
02 = 29 Kw
03 = 34 Kw
04 = 50 Kw
7. Press and release button ‘S’ to confirm. The parameter number
(P00) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
PARAMETER P01 – SELECTS THE TYPE OF BOILER
00
S
P 01
S
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter:
00 = instantaneous boiler
01 = storage boiler
02 = boiler with storage tank Comfort (+7°C)
7. Press and release button ‘S’ to confirm. The parameter number
(P01) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
PARAMETER P02 – SELECTS THE TYPE OF GAS
00
S
P 02
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter:
00 = Natural Gas
01 = LPG
7. Press and release button ‘S’ to confirm. The parameter number
(P02) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
S
PARAMETER P03
TEMPERATURE
00
S
P 03
S
–
SETS
THE
CENTRAL
HEATING
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter:
00 = standard (30-80°C)
01 = reduced (25-40°C) for under-floor heating.
7. Press and release button ‘S’ to confirm. The parameter number
(P03) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
27
REGULATION INSTRUCTIONS
PARAMETER P04 – HEATING OUTPUT RISING TIME
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter:
01
S
00 = 0 seconds
01 = 50 seconds (default)
02 = 100 seconds
03 = 200 seconds
04 = 400 seconds
P 04
S
7. Press and release button ‘S’ to confirm. The parameter
number (P04) will appear on the display.
8. Switch off the appliance and switch it back on again to render
the new parameter operative.
PARAMETER P05 –
FUNCTION
00
S
P 05
WATER HAMMER PREVENTION
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter:
00 = off
01 = on (default = 2”)
7. Press and release button ‘S’ to confirm. The parameter
number (P05) will appear on the display.
8. Switch off the appliance and switch it back on again to render
the new parameter operative.
S
PARAMETER P06 – D.H.W PRIORITY FUNCTION
00
S
P 06
S
It keeps 3 way valve in D.H.W. production position, for a period
equals to D.H.W. pump overrun, so that plate exchanger is kept
hot.
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter:
00 = off
01 = on (default =120”);
7. Press and release button ‘S’ to confirm. The parameter
number (P06) will appear on the display.
8. Switch off the appliance and switch it back on again to render
the new parameter operative.
28
REGULATION INSTRUCTIONS
PARAMETER P07 – CENTRAL HEATING TIMER
36
S
P 07
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter
within the prescribed limits:
00 = 0 x 5” = 0”
90 = 90 x 5” = 450” (7,5 min)
The default value is 36 = 180” = 3 min
7. Press and release button ‘S’ to confirm. The parameter
number (P07) will appear on the display.
8. Switch off the appliance and switch it back on again to
render the new parameter operative.
S
PARAMETER P08 – CENTRAL HEATING PUMP OVERRUN
TIMER
36
S
P 08
S
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter
within the prescribed limits:
00 = 0 x 5” = 0”
90 = 90 x 5” = 450” (7,5 min)
The default value is 36 = 180” = 3 min
7. Press and release button ‘S’ to confirm. The parameter
number (P08) will appear on the display.
8. Switch off the appliance and switch it back on again to
render the new parameter operative.
PARAMETER P09 – D.H.W PUMP OVERRUN TIMER
18
S
P 09
S
6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter
within the prescribed limits:
00 = 0 x 5” = 0”
90 = 90 x 5” = 450” (7,5 min)
The default value is 18 = 90” = 1.5 min
7. Press and release button ‘S’ to confirm. The parameter
number (P09) will appear on the display.
8. Switch off the appliance and switch it back on again to
render the new parameter operative.
29
REGULATION INSTRUCTIONS
PARAMETER P10 – MINIMUM FAN SPEED SETTING
40
S
P 10
6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter
between: min = 33 Hz ; max = 133 Hz.
The default value is adjusted according to the output set in parameter
P00.
7. Press and release button ‘S’ to confirm. The parameter number
(P10) will appear on the display .
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
S
PARAMETER P11 – MAXIMUM FAN SPEED SETTING
168
S
P 11
6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter
between: min = value of parameter P10; max = 203 Hz.
The default value is adjusted according to the output set in parameter
P00.
7. Press and release button ‘S’ to confirm. The parameter number
(P11) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
S
PARAMETER P12 – MINIMUM FAN SPEED SETTING (CENTRAL
HEATING)
40
S
P 12
6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter
between: min = 33 Hz ; max = 133 Hz.
The default value is adjusted according to the output set in parameter
P00.
7. Press and release button ‘S’ to confirm. The parameter number
(P12) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
S
PARAMETER P13 – MAXIMUM FAN SPEED SETTING (CENTRAL
HEATING)
168
S
P 13
S
6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter
between: min = value of parameter P12 ; max = 203 Hz.
The default value is adjusted according to the output set in parameter
P00.
7. Press and release button ‘S’ to confirm. The parameter number
(P13) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
30
REGULATION INSTRUCTIONS
PARAMETER P14 – IGNITION SEQUENCE SETTING
90
S
P 14
S
6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter
between: min = 33 Hz; max = 203 Hz.
The default value is adjusted according to the output set in parameter
P00.
7. Press and release button ‘S’ to confirm. The parameter number
(P14) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
PARAMETER P15 – ZONE MANAGEMENT BOARD ACTIVATION
00
S
P 15
6. If the system is fitted with zone valves, set the parameter at ‘01’. If
a remote control is installed, an extra interface board must be
installed to control the zone valves. Then set the parameter at ‘01’.
7. Press and release button ‘S’ to confirm. The parameter number
(P15) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
S
PARAMETER P16 – TELEPHONE CONTROL ACTIVATION
00
S
P 16
S
6. If a telephone interface is installed, enable the board by setting
parameter P16 at ‘01’.
7. Press and release button ‘S’ to confirm. The parameter number
(P16) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
N.B.: The connection of the telephone interface to contact TA of the
terminal board must be wired in parallel with the remote control using
two non-polarised conductors.
PARAMETER P17 – FAN FREQUENCY VALUE DISPLAY
00
S
P 17
S
6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter
between:
- 00 = Off;
- 01 = On.
If parameter value 01 is selected, during the boiler operation, the
display will show the fan frequency value for 10 min.
7. Press and release button ‘S’ to confirm. The parameter number
(P17) will appear on the display.
8. Switch off the appliance and switch it back on again to render the
new parameter operative.
31
REGULATION INSTRUCTIONS
5.3 Gas data
Technical data tables
CO2 Values
Gas type
CO2 %
9.18
10.3
Natural gas
Universal LPG
Frequency
Gas type
Natural gas
Universal LPG
Minimum (Hz)
Maximum (Hz)
55
52
164
155
Gas data table
NATURAL GAS
Universal LPG
Nominal Supply pressure
kPa
1.13
2.75
Consumption
MJ/h
130.5
130.5
Heating Power (kW) – Fan frequency (Hz) diagram
Natural gas (G20)
L.P.G. (G30/G31)
32
REGULATION INSTRUCTIONS
5.4 Converting the boiler to a different gas type
The conversion of a boiler from burning natural gas to LPG, or vice versa, must be carried out
exclusively by professionally qualified authorised personnel, registered in accordance with current
legislation and authorized by Radiant Bruciatori Spa.
Check that the gas supply pipe is suitable for the new fuel type.
Conversion is performed as follows:
•
Select the new gas type by changing parameter no.P02 (see ‘Parameters table’ 5.2);
•
Unscrew the aluminium plug and insert the analyser in the exhaust sampling point PF (see fig.1 paragraph 4.5)
to check the CO value. Make sure that the value complies with that reported in table 1 (paragraph 4.5);
•
If the CO2 value does not correspond to the specified value, adjust screw V (see fig. 1 paragraph 4.5) on the
venturi clockwise to reduce the CO2 value or anticlockwise to increase it;
33
MAINTENANCE INSTRUCTIONS
6. MAINTENANCE (authorised personnel)
6.1 General Warnings
All maintenance operations must be carried out by professionally qualified personnel, authorised by
Radiant Bruciatori Spa.
The frequency of boiler maintenance must comply with current law and, nevertheless, should be
carried out once a year.
In order to guarantee the long life of the appliance and in accordance with the current gas safety
regulations, only use original spare parts
Before carrying out any type of maintenance operation, disconnect the appliance from the mains
electricity supply and close the gas valve.
6.2 Boiler inspection
In order to ensure that the boiler operates efficiently and safely, it is recommended that the appliance is inspected
by a suitably competent technician at least once a year.
The following operations should be carried out annually
■ Check the condition of the gas seals and replace where necessary.
■ Check the condition of the water seals and replace where necessary.
■ Visually inspect the condition of the combustion chamber and flame.
■ When required, check that the combustion is correctly regulated and if necessary proceed in line with section
“Commissioning the boiler”.
■ Remove and clean any oxidation from the burner.
■ Check that the seal of the room-sealed chamber is undamaged and positioned correctly.
■ Check the primary heat exchanger and clean if necessary.
■ Check the maximum and minimum modulation pressures and the modulation itself.
■ Check the condition and operation of the ignition and gas safety systems. If necessary, remove and clean the
scaling from the ignition and flame detection electrodes, paying particular attention to replace them at the correct
distance from the burner.
■ Check the heating safety systems: temperature limit safety thermostat, pressure limit safety device.
■ Check the pre-fill pressure of the expansion vessel (if mounted).
■ For safety reasons, periodically check the integrity and operation of the flue gas exhaust system.
■ Check that the connection to the mains electricity supply complies with that reported in the boiler’s instruction
manual.
■ Check the electrical connections inside the control panel.
■ Check the D.H.W flow rate (if produced) and temperature.
■ Check that the condensate drain system is working correctly, including any parts of the system outside the boiler
such as condensate collection devices along the length of the flue and/or any acid neutralising devices.
■ Check that the condensate flows freely and that there are no exhaust fumes present within the appliance.
34
MAINTENANCE INSTRUCTIONS
6.3 Accessing the boiler
All maintenance operations require one or more of the
boiler casing panels to be removed.
The side panels can only be removed after the front
panel has been removed.
Front panel:
Remove the fixing screws at the lower edge of the
front panel.
Grasp the lower part of the panel and pull it
outwards (see fig. 1) and then up (see fig. 2).
Left and right side panel:
Remove the fixing screws at the front and lower
edge of the side panel to remove.
Grasp the bottom of the panel, move it sideways
and then upwards to remove it.
Fig. 1
Fig. 2
To access the electrical connections of the
control panel, proceed as follows:
• Remove the front panel (see fig. 1 and fig. 2).
• Grasp the left and right control panel support
brackets (see fig. 5) and pull them outwards, at the
same time rotating the panel downwards.
• Unscrew the four fixing screws (see fig. 6) and
remove the panel back piece.
Fig. 3
Fig. 4
6.4 Flushing out the primary side
•
Fill the boiler as per the filling instructions.
•
Using a drain off cock on the lowest point of the
system allow the water to drain from the system
and boiler.
•
In order to flush the system correctly turn off all
radiators open the filling loop and drain cock
simultaneously and allow the water to flow through
the boiler.
•
Open each individual radiator allowing water to
flow through then turn that radiator off and repeat
for all radiators on the system.
•
Turn off the filling loop and close the drain cock
open all radiators and open the filling to fill the
system.
•
Continue to fill the system until the pressure
gauge reches 1.0 bar.
Fig. 5
35
Fig. 6
MAINTENANCE INSTRUCTIONS
6.5 Draining the central heating system
If the need arises to drain the system, this can be done
as follows:
•
Switch the system to “WINTER” mode and ignite the
boiler.
•
Switch off the power supply to the boiler.
•
Wait for the boiler to cool down.
•
Connect a hosepipe to the system drain point and
locate the other end of the hose in a suitable
drainage system.
•
Open the system drain valve (see fig. 1).
•
Open the air vents on the radiators, starting with the
highest and moving down the system to the lowest.
•
When the system has been drained, close the
radiator breather valves and the drain valve.
•
If only the boiler needs to be drained, close the
flow/return isolating valves on the heating circuit and open the drain valve located at the bottom of the
boiler on the pump manifold (see fig. 1);
■
Draining the domestic hot water system
Fig. 1
If there is a danger of freezing, the domestic hot water system should be drained. This can be done as follows:
•
Close the mains water supply valve.
•
Open all the hot and cold water taps.
•
On completion, close all the previously opened taps.
36
MAINTENANCE INSTRUCTIONS
6.6 Maintenance operations
Before carrying out any cleaning or part replacement operations, ALWAYS turn off the ELECTRICITY,
WATER and GAS supplies to the boiler.
Radiant Bruciatori S.p.a. will not be held responsible for damage to any of the boiler’s components
caused by non-compliance with this instruction.
For all maintenance operations requiring removal of the boiler casing, refer to the procedures described in
paragraph 6.3 “Accessing the boiler”.
expansion vessel
primary heat exchanger
burner unit
ignition transformer
ignition electrode
ionisation electrode
heating sensor
safety thermostat
electric fan`
gas valve
circulating pump
3-way valve
condensate drain trap
Fig. 1
37
MAINTENANCE INSTRUCTIONS
Cleaning the main exchanger module and
combustion unit (see fig. 1)
• Disconnect the electrical connections of the
electric fan.
primary heat
exchanger
• Disconnect the joint and remove the pipe linking
the gas valve to the injector unit (venturi).
• Disconnect the joint and remove the gas feed
pipe from the gas valve.
• Un-plug the ignition electrode and flame
detection wires from the ignition control unit.
premix burner unit
• Unscrew the ring-nut at the bottom of the roomsealed chamber and remove the gas valve.
• Unscrew the nuts securing the burner unit
(consisting of a fan, manifold and burner) to the
primary heat exchanger.
B
A
burner
• Remove the burner unit, paying particular
attention not to remove the ceramic fibre
protection from the bottom of the heat
exchanger.
• Check that the burner is not affected by deposits,
scaling or excessive oxidation. Check that all the
holes in the burner are free;
• Clean the electrodes carefully without altering
their positions with respect to the burner;
ionisation
electrode
• Clean the burner cylinder using a non-metal
brush and without damaging the ceramic fibre;
ignition
electrode
• Check the integrity of the washer on the cover of
the burner;
• Clean the heat exchanger (see fig. 2) using a
household detergent for stainless steel,
distributing the product on the spirals of the
exchanger using a brush. Do not wet the ceramic
fibre coating. Wait a few minutes then remove
the deposits using a non-metal brush. Then
remove the residues under running water;
Fig. 1
primary heat
exchanger
flue connection
chamber
• Remove the pipe clip, remove the condensate
drainpipe and clean under running water.
• Unscrew the joint to the condensate trap, remove
the trap and wash under running water.
• With the cleaning completed, re-assemble the
components following the above procedure in
reverse order.
• Finally, check the boiler to make sure that all gas
and exhaust joints are tight.
ceramic fibre
washer
Fig. 2
38
stainless steel
pipe coil
MAINTENANCE INSTRUCTIONS
Part replacement:
Ignition and/or flame detection electrodes (see fig.
1)
• Un-Plug the electrode wires;
ignition
electrode
• Slacken the fixing screws;
• Remove the electrodes. When fitting the new ones,
check that the seals are not damaged. Replace if
necessary;
• Reconnect the wires and re-assemble the
components following the above procedure in
reverse order;
• Switch on the power supply and restart the
appliance;
If the boiler does not restart, check the positions of
the electrodes (especially the ignition electrode).
Make sure that original position and distances
between the electrodes and the burner are
respected to avoid a boiler malfunction).
ionisation
electrode
Fig. 1
POSITIONING THE IGNITION ELECTRODE AND THE IONISATION ELECTRODE
7.5
-+ 1
3.5 +- 0.5
+1
39
MAINTENANCE INSTRUCTIONS
Safety thermostat (see fig. 1)
• Disconnect the connecting wire;
• Unscrew the
thermostat;
fixing
screws
and
remove
the
• Replace the thermostat and re-assemble the
components following the above procedure in
reverse order;
• Switch on the electricity, water and gas supplies and
restart the appliance.
heating
sensor
Heating sensor (see fig. 1)
• Un-Plug the connecting wire;
• Replace the sensor and re-assemble the
components following the above procedure in
reverse order;
• Switch on the electricity, water and gas supplies,
open the shut-off valves and fill the central heating
circuit. Then restart the appliance, remembering to
discharge any air that may be trapped in the system;
Fig. 1
Gas valve (see fig. 2)
• Disconnect the joints and remove the gas pipe
connecting the gas valve to the venturi.
• Disconnect the gas feed pipe and valve ring-nut at
the bottom of the room-sealed chamber.
gas valve
• Remove the flanged elbow coupling of the existing
valve and fit it to the new valve; also fit a new cork
washer.
• Replace the gas valve and re-assemble the
components following the above procedure in
reverse order.
• Replace all the gas seals.
• Fully tighten the gas connections.
• Switch on the electricity, water and gas supplies and
check for any gas leaks using a soapy solution or
leak detector spray;
Fig. 2
40
safety
thermostat
MAINTENANCE INSTRUCTIONS
Electric fan (see fig. 1)
• Remove and dismantle the entire burner unit (see
6.6.1 “Cleaning the burner unit”).
venturi
• Use an 8 mm spanner to unscrew the four nuts
securing the electric fan to the gas manifold and then
remove the electric fan, noting the positions of the
washer and diaphragm.
• Remove the air intake duct, unscrew the two fixing
screws from the venturi and remove the electric fan,
paying particular attention not to damage the cork
gasket.
• Replace the electric fan and re-assemble the
components following the above procedure in
reverse order.
Fig. 1
• Switch on the electricity, water and gas supplies and
check the soundness of the joint by measuring the
CO2 levels;
electric fan
Expansion vessel (see fig. 2)
• Close the shut-off valves and drain the central heating circuit of the boiler.
• Use a 19 mm spanner to unscrew the pipe coupling to the vessel.
• Unscrew the fixing screws and remove the upper mounting bracket. Remove the expansion vessel from the front
of the boiler.
• Replace the expansion vessel and re-assemble the components following the above procedure in reverse order.
• Switch on the electricity, water and gas supplies and fill the system with water. Check for any leaks from the
joints and bleed off any air from the circuit;
41
MAINTENANCE INSTRUCTIONS
Circulating pump (motor body) (see fig. 1)
• Close the shut-off valves and drain the central
heating circuit of the boiler;
•
circulating
pump
Use a 5 mm Allen key to unscrew the four screws
securing the motor body to the impeller body;
• Remove the motor body and check the condition of
the washer. If necessary, replace the washer;
• Replace the circulation pump and re-assemble the
components following the above procedure in
reverse order;
•
Switch on the electricity, water and gas supplies
and fill the system with water. Check for any leaks
from the joints and bleed off any air from the circuit.
Restart the boiler.
Fig. 1
Diverter valve (see fig. 2)
Replacing the diverter valve body
• Close the shut-off valves and drain the central
heating circuit of the boiler;
diverter valve body
• Unscrew the fixing screws securing the transparent
cover of the diverter valve and remove the cover;
• Unscrew the four fixing screws and remove the
diverter valve body and washer;
• Replace the valve body and re-assemble the
components following the above procedure in
reverse order;
• Switch on the electricity, water and gas supplies and
fill the system with water. Check for any leaks from
the joints and bleed off any air from the circuit.
Restart the boiler.
diverter valve motor
42
Fig. 2
MAINTENANCE INSTRUCTIONS
Modulation circuit board (see fig. 1-2)
• Open the control panel (see 6.3 “Accessing the
boiler”);
• Disconnect all the connectors, remove the
regulating knobs, unscrew the four fixing screws and
remove the modulation circuit board;
modulation circuit board
• Replace the circuit board and re-assemble the
components following the above procedure in
reverse order;
• Switch on the electricity, water and gas supplies
and regulate the boiler (see 5.3 “Gas data”);
The preset parameters of the printed circuit
board correspond to a 34 kw instantaneous
condensing boiler fed by natural gas.
When replacing the modulation circuit board,
it’s necessary to set parameter P00 according
to the boiler model (18-25-29-34-50).
Fig. 1
modulation circuit board
Fig. 2
43
MAINTENANCE INSTRUCTIONS
Primary heat exchanger (see fig. 1)
• Close the shut-off valves and drain the central
heating circuit of the boiler;
• Switch off the power and gas supply to the boiler;
• Remove and dismantle the entire burner unit (see
6.6.1 “Cleaning the condensation module and
burner unit”);
primary heat
exchanger
flue connection
chamber
• Remove the gas valve;
• Remove the spring and then the condensate
drainpipe;
• Remove the fixing springs and then the delivery
and return pipes;
• Remove the support brackets and pull out the
heat exchanger;
• Remove the regulation sensor from the old heat
exchanger and refit it together with the two
condensate drainpipes to the new one;
• Replace the heat exchanger and re-assemble the
components following the above procedure in
reverse order;
• Switch on the electricity, water and gas supplies
and fill the system with water. Check for any leaks
from the joints and bleed off any air from the
circuit. Restart the boiler, making sure that there
are no gas leaks;
Fig. 1
44
steinless steel
pipe coil
ceramic fibre
washer
MAINTENANCE INSTRUCTIONS
6.7 Wiring diagrams
PRINTED CIRCUIT BOARD DIGITECH 2 - SM30003
COD. 40-00016
M1
M2
M3
M5
M6
EV
M7
M8
TF1
M9
N
M11
EXHAUST FAN
type RG128/1300-3612
M10
TF2
L
light-blue
M11
brown
EV2
EV1
VG
M7
black
brown
orange
EV1 A
EV2 B
EV1 B
EV2 A
light-blue
brown
red
brown
EA
light-blue
ER
Tra
C
M5
black
light-blue
M9
Key
M2
45
light-blue
Pacq
brown
orange
black
orange
black
SS
red / black
light-blue
M1
SR
white/black
TS
brown
orange
M10
orange
light-blue
black
light-blue
brown
violet
Heating
D.H.W. C
brown
TF
brown
IG
Storage cylinder timer (option)
for storage boilers only
VD
IG: Main Switch
TF: Thermo Fuse 102°C
TS: Safety thermostat
SR: Heating sensor
SS: DHW sensor
EV: Fan
ER: lonisation electrode
EA: Ignition electrode
TRA:Ignition transformer
VD: 3-way valve
C: Circulating pump
PACQ : Water pressure switch
INSTALLATION INSTRUCTIONS
Connecting the room thermostat (Option)
Connect the wires to the terminal board inside the instrument panel as follows:
(Example with WEEK digital weekly chronostat):
a.
b.
c.
d.
e.
switch off the power supply at the main switch.
remove the front case panel of the boiler.
slacken the screws and remove plate A (see fig.1).
remove jumper TA -TA from the terminal board B;
connect the room thermostat/chronostat wires;
When the wires have been connected, place plate “A" back to position and then the front case panel.
2
M1 1
N
Ta Ta Se Se
Outside
temperature sensor
L
B
A
CHRONOSTAT
Fig. 1
Connecting the outside temperature sensor (Option)
Connect the wires to the terminal board inside the instrument panel as follows:
a.
b.
c.
d.
switch off the power supply at the main switch.
remove the front case panel of the boiler.
slacken the screws and remove plate A (see fig.1).
connect the outside temperature sensor on contacts marked as SE-SE on the terminal board B ;
When the wires have been connected, place plate “A" back to position and then the front case panel.
46
INSTALLATION INSTRUCTIONS
Connecting the remote controller the outside temperature sensor (option)
Connect the wires to the terminal
board inside the instrument panel as
follows:
Outside
temperature
sensor (option)
Ta Ta Se Se
a. switch off the power supply at the
main switch.
b. remove the front case panel of the
boiler.
c. slacken the screws and remove
plate A (see fig.1).
d. remove jumper TA-TA from the
terminal board B;
e. connect the remote controller wires.
N
REMOTE "OPEN THERM"
B
L
A
Fig. 1
When the wires have been connected,
place plate “A" back to position and then the front case panel.
cod. 40-00017
Connecting the remote controller and the telephone control (option)
Connect the wires to the terminal board inside the instrument panel as follows:
a. switch off the power supply at the main
switch.
b. remove the front case panel of the boiler.
c. slacken the screws and remove plate A
(see fig.1).
d. remove jumper TA-TA from the terminal
board B;
e. connect the remote controller and the
telephone control wires;
f. Active the telephone control through the
parameter no.16 (see 5.1 “Parameters
Table”)
Ta Ta Se Se
Telephone control
N
REMOTE "OPEN THERM"
L
B
A
When the wires have been connected, place
Fig. 2
plate “A" back to position and then the front
case panel.
cod. 40-00017
47
INSTALLATION INSTRUCTIONS
Remote control and zone valves wiring
Zone valve management +
option remote controller board
cod. 40-00018
Option remote
lock - out
indicator
48
cod. 40-00017
REMOTE "OPEN THERM"
Terminal block
Outside temperature
sensor (option)
For the installation of a zone valve p.c.b, it is necessary to access the main p.c.b for electrical connection (see 6.3
“Accessing the boiler” ) and to activate the parameter P15 (see 5.1 “Parameters table”).
Zone valve management +
option remote controller board
cod. 40-00018
Option remote
lock - out
indicator
49
cod. 40-00017
REMOTE "OPEN THERM"
Terminal block
Outside temperature
sensor (option)
Telephone control
MAINTENANCE INSTRUCTIONS
Remote control, zone valves and telephone control wirings
MAINTENANCE INSTRUCTIONS
Regulating the Flow temperature in accordance with the outdoor temperature
The outdoor sensor has to be connected directly to circuit board SM30003.
The sensor can thus be managed in one of two ways:
•
In case of remote controller + outdoor temperature sensor installation, the climatic compensation curve is set by
the remote itself (see remote control installation and operating manual).
•
In case of outdoor temperature sensor only installation, the climatic compensation curve is set using the central
heating control knob. As the knob (see fig. 2) is rotated, the numbers corresponding to the curve shown in figure
1 are displayed.
The factors governing the correction is reported in figure 1.
The selection of the compensation curve is determined by the maximum delivery temperature Tm and the minimum
outdoor temperature Te.
N.B. The y-axis values of the delivery temperature Tm refer to standard 80-30 °C appliances or 40-25 °C floormounted appliances. The type of appliance can be programmed using parameter 3 (see 5.1 “Parameter
programming”).
OUTDOOR SENSOR
DELIVERY TEMPERATURE CORRECTION AS A FUNCTION OF OUTSIDE
TEMPERATURE WITH RESPECT TO THE POSITION OF THE HEATING
TEMPERATURE CONTROL SET BY THE USER
Tm
7
8
9
40 MAX 80
75
70
65
35
60
55
50
30
45
40
35
25 MIN 30
6
5
4
3
2
1
0
Te (°C)
27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
TM-MAX/MIN = delivery temperature range selected
Fig. 1
Te = Outdoor temperature
Tm = delivery temperature
Fig. 2
50
-1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15
MAINTENANCE INSTRUCTIONS
D.H.W. sensor connection
M2
PRINTED CIRCUIT BOARD SM30003
HOT WATER SENSOR LEAD
MAX. LENGHT 8 mt.
REMOTE DHW CYLINDER FLOW
FILLING LOOP
REMOTE DHW CYLINDER RETURN
51
MAINTENANCE INSTRUCTIONS
6.8 Troubleshooting
ERROR
CODE
PROBLEM
POSSIBLE CAUSE
WITH NO IGNITION
NO GAS.
IGNITION ELECTRODE BROKEN OR EARTHED.
GAS VALVE MALFUNCTION
MECHANICAL MINIMUM ADJUSTMENT (ON GAS
VALVE) SET TOO LOW OR SLOW IGNITION
ADJUSTMENT SET TOO LOW.
e. GAS VALVE INLET PRESSURE TOO HIGH (FOR LPG
BOILERS ONLY );
a.
b.
c.
d.
NO FLAME
E01
WITH IGNITION
POWER SUPPLY LIVE AND NEUTRAL WIRES
INVERTED.
g. IONISATION ELECTRODE MALFUNCTION.
h. IONISATION ELECTRODE CABLE DISCONNECTED.
f.
E02
E03
i.
SAFETY
THERMOSTAT
TRIPPED (95°C)
j.
102°C THERMO
FUSE TRIPPED
THERMOSTAT MALFUNCTION OR OUT OF
CALIBRATION.
THERMOSTAT CABLE DISCONNECTED.
REMEDY
a.
b.
c.
d.
e. CHECK THE MAXIMUM PRESSURE
SETTING.
f.
g.
h.
REPLACE PART.
j.
CHECK THE WIRING ;
k. THERMOFUSE BROKEN;
l. THERMOFUSE CABLE DICONNECTED;
k. REPLACE PART THEN INTERRUPT
m. THERMOFUSE LOCK OUT. (HIGH FLUE
l.
m.
H20
E05
HEATING
SENSOR
IN
CONNECT THE POWER SUPPLY
WIRES CORRECTLY.
REPLACE PART.
CONNECT THE IONISATION
ELECTRODE WIRE.
i.
TEMPERATURE)
NO WATER
THE SYSTEM
CHECK MAINS SUPPLY.
REPLACE PART.
REPLACE PART
REGULATE MECHANICAL
MINIMUM OR SLOW IGNITION.
n. INSUFFICIENT WATER PRESSURE IN THE SYSTEM
o.
p.
(STOPS AT 0.3 BAR).
WATER PRESSURE SWITCH CABLE DISCONNECTED.
WATER PRESSURE SWITCH MALFUNCTION.
q. SENSOR MALFUNCTION OR OUT OF CALIBRATION
r.
(RESISTANCE VALUE 10 kOhms AT 25 °C).
SENSOR CABLE DISCONNECTED OR WET.
s. SENSOR MALFUNCTION OR INCORRECT
AND RECONNECT ELECTRICAL
SUPPLY;
CHECK THE ELECTRICAL
CONNECTION;
RESTART AND CHECK THE
THERMOSTAT
n. FILL THE SYSTEM;
o. CHECK THE WIRING;
p. REPLACE PART;
q. REPLACE PART;
r.
CHECK THE ELECTRICAL
CONNECTION;
s. REPLACE PART;
E12
D.H.W STORAGE
CYLINDER
SENSOR
E16
FAN
u. BURNT FAN
u. REPLACE PART
v. LOSS OF MICROPROCESSOR MEMORY;
v. REPROGRAM PARAMETERS;
E22
PARAMETER
PROGRAMMING
REQUEST
t.
(RESISTANCE VALUE 10 kOhms AT 25 °C).
SENSOR CABLE DISCONNECTED OR WET.
52
t.
CHECK THE ELECTRICAL
CONNECTION ;
MAINTENANCE INSTRUCTIONS
6.9 Diagnostics
■ Error codes:
E01
E02
E03
H2O
E05
E12
E16
E22
Ionisation Lock Out
Safety Thermostat Tripped
102°C Thermo fuse Tripped
Low Water Pressure Alarm
Heating Sensor Malfunction
D.H.W Storage Cylinder Sensor
Malfunction
Electric Fan Malfunction
Parameter Programming Request
■ Function codes :
Code
07
08
13
Function
Description
Flue test function active
(Chimney-Sweeper)
Pressing the “service” button for 7 seconds
activates the Flue test function. Pressing the
boiler off button deactivates the function.
The Flue test function operates the boiler at
the maximum heating pressure for 15 minutes
without any modulation. The function is useful
for combustion testing.
Frost Protection
Central heating circuit
The function is activated when the heating
sensor senses a temperature of 5 °C. The
boiler operates at minimum gas pressure with
the 3-way diverter valve in the winter position.
The function is deactivated when the
temperature detected by the sensor reaches
30°C.
Frost Protection
D.H.W. circuit – for storage
boilers
The function is activated when the sensor
senses a temperature of 4°C. The boiler
operates at minimum gas pressure. The 3-way
diverter valve closes in the summer position
and heats the D.H.W. circuit. The function is
deactivated when the D.H.W. storage cylinder
sensor detects a temperature of 8°C or when
heating sensor detect a temperature in the
heating circuit of 30°C.
28
Legionella Prevention Function
31
Incompatible Remote Control
Function active for storage boilers only. It
comes into operation every 7 days.
It brings the hot water temperature of the
storage cylinder up to 60°C whatever
temperature value is set for hot water.
Function active when the remote control
connected is not compatible with the printed
circuit board .
53
MAINTENANCE INSTRUCTIONS
6.10 Parts List
Main components
CODE
DESCRIPTION
30-00043
CONDENSING EXCHANGER 5+1 CBD COMPLETE
24046LA
PUMP RSL 15/6
27044LA
CONDENSATE TRAP
35031LA
IGNITION ELECTRODE
35032LA
IONISTATION ELECTRODE
36076LA
ELECTRONIC GAS VALVE
36072LA
VENTURI 57kW
37032LA
FAN
40-00016
PRINTED CIRCUIT BOARD DIGITECH 2 – SM30003
59015LA
WATER PRESSURE SWITCH
73516LA
HTG CLIP SENSOR FOR PIPE 17/18 mm BLUE
73517LA
THERMO FUSE 102°C RED
86006LA
SAFETY THERMOSTAT 95 °C
25-00196
WATER PRESSURE GAUGE
88023LA
TRANSFORMER
95013LA
EXPANSION VESSEL LT.7 3/8"
96031LA
DIVERTER VALVE
25-00131
3 BAR PRESSURE RELIEF VALVE -HTG CIRCUIT
54
RADIANT BRUCIATORI s.p.a.
Via Pantanelli, 164/166 - 61025 Loc. Montelabbate (PU)
Tel. +39 0721 9079.1 • fax. +39 0721 9079279
e-mail: info@radiant • Internet: http://www.radiant.it
THE TECHNICAL DATA AND MEASUREMENTS ARE PROVIDED FOR
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