cod. 3541M540 — Rev. 01 - 06/2017
((
INSTRUCTIONS FOR USE, INSTALLATION AND MAINTENANCE
E25 / E29
EN
Indication during operation
1. GENERAL WARNINGS
The display (detail 11 - fig. 1) shows the actual heating delivery temperature and, during
heating standby time, the message “d2”.
•
•
•
•
•
•
•
•
•
•
•
Heating
A heating demand (generated by the Room Thermostat or Remote Timer Control) is indicated by flashing of the hot air above the radiator on the display.
Carefully read and follow the instructions contained in this instruction booklet.
After boiler installation, inform the user regarding its operation and give him this manual,
which is an integral and essential part of the product and must be kept with care for future
reference.
Installation and maintenance must be carried out by professionally qualified personnel,
in compliance with the current regulations and according to the manufacturer's instructions. Do not carry out any operation on the sealed control parts.
Incorrect installation or inadequate maintenance can result in damage or injury. The
Manufacturer declines any liability for damage due to errors in installation and use, or
failure to follow the instructions.
Before carrying out any cleaning or maintenance operation, disconnect the unit from the
electrical power supply using the switch and/or the special cut-off devices.
In case of a fault and/or poor operation, deactivate the unit and do not try to repair it or
directly intervene. Contact professionally qualified personnel. Any repair/replacement of
the products must only be carried out by qualified personnel using original replacement
parts. Failure to comply with the above could affect the safety of the unit.
This unit must only be used for its intended purpose. Any other use is deemed improper
and therefore hazardous.
The packing materials are potentially hazardous and must not be left within the reach of
children.
The unit must not be used by people (including children) with limited physical, sensory
or mental abilities or without experience and knowledge of it, unless instructed or supervised in its use by someone responsible for their safety.
The unit and its accessories must be appropriately disposed of, in compliance with the
current regulations.
The images given in this manual are a simplified representation of the product. In this
representation there may be slight and insignificant differences with respect to the product supplied.
Domestic hot water (DHW)
A DHW demand (generated by drawing domestic hot water) is indicated by flashing of
the hot water under the tap on the display.
The display (detail 11 - fig. 1) shows the actual DHW outlet temperature and, during
DHW standby time, the message “d1“.
Comfort
A Comfort demand (reinstatement of temperature inside the boiler) is indicated by flashing of the water under the tap on the display. The display (detail 11 - fig. 1) shows the
actual temperature of the water in the boiler.
Fault
In case of a fault (see cap. 4.5) the display shows the fault code (detail 11 - fig. 1) and,
during safety standby times, the messages "d3" and "d4".
2.3 Lighting and turning off
Connection to the power supply
•
•
•
During the first 5 seconds the display will also show the card software release.
Open the gas cock ahead of the boiler.
The boiler is now ready to function automatically whenever domestic hot water is
drawn or in case of a heating demand (generated by Room Thermostat or Remote
Temperature Control).
Turning the boiler off and on
Press the on/off button (detail 7 - fig. 1) for 5 seconds.
THE CE MARKING CERTIFIES THAT THE PRODUCTS MEET THE ESSENTIAL REQUIREMENTS OF THE RELEVANT DIRECTIVES IN FORCE.
THE DECLARATION OF CONFORMITY MAY BE REQUESTED FROM THE MANUFACTURER.
2. OPERATING INSTRUCTIONS
fig. 2 - Turning the boiler off
2.1 Introduction
Dear Customer,
E25 / E29 is a high-efficiency sealed chamber condensing heat generator for heating
and hot water production using natural gas or LPG, and equipped with a microprocessor
control system.
When the boiler is turned off, the PCB is still powered. Domestic hot water and heating
are disabled. The antifreeze system remains activated. To relight the boiler, press the
on/off button (detail 7 fig. 1) again for 5 seconds.
THIS UNIT IS IDEAL FOR COMBINING WITH CONVENTIONAL HIGH TEMPERATURE SYSTEMS. IT CANNOT BE COMBINED OR INSTALLED WITH DIRECT DELIVERY TO LOW TEMPERATURE RADIANT PANEL SYSTEMS.
2.2 Control panel
Panel
fig. 3
2 9 10 15
1
8
5
11
7
17
B
2
eco
comfort
reset
12
The boiler will be immediately ready to work whenever domestic hot water is drawn or in
case of a heating demand (generated by the Room Thermostat or the Remote Timer
control).
1
3
0
4
The antifreeze system does not work when the power and/or gas to the unit are
turned off. To avoid damage caused by freezing during long idle periods in winter, it is advisable to drain all water from the boiler, DHW circuit and system; or
drain just the DHW circuit and add a suitable antifreeze to the heating system,
complying with that prescribed in.
2.4 Adjustments
Summer/Winter Switchover
Press the summer/winter button (detail 6 - fig. 1) for 2 seconds.
The display activates the Summer symbol (detail 10 - fig. 1): the boiler will only deliver
domestic hot water. The antifreeze system remains activated.
To deactivate the Summer mode, press the summer/winter button (detail 6 - fig. 1)
again for 2 seconds.
4 13
16
6
Heating temperature adjustment
fig. 1 - Control panel
2
EN
Use the heating buttons (details 3 and 4 - fig. 1) to vary the temperature from a min. of
30°C to a max. of 80°C; in any case, it is advisable not to operate the boiler below 45°C.
cod. 3541M540 - Rev. 01 - 06/2017
III
III
Panel key fig. 1
1
DHW temperature setting decrease button
2
DHW temperature setting increase button
3
Heating system temperature setting decrease button
4
Heating system temperature setting increase button
5
Display
6
"Sliding Temperature" Menu - Summer/Winter mode selection - Reset button
7
Unit On/Off - Economy/Comfort mode selection button
8
DHW symbol
9
DHW mode
10
Summer mode
11
Multifunction
12
Eco (Economy) mode
13
Heating
14
Heating symbol
15
Burner lit and actual power level (flashing during combustion fault function)
16
Service Tool connection
17
Water gauge
III
14 3
fig. 4
E25 / E29
DHW temperature adjustment
Adjustments from Remote Timer Control
Use the DHW buttons (details 1 and 2 - fig. 1) to adjust the temperature from a min. of
40°C to a max. of 55°C.
A justments are managed according to that given in table 1.
If the Remote Timer Control (optional) is connected to the boiler, the above ad-
Table. 1
III
III
III
fig. 5
Heating temperature setting
Adjustment can be made from the Remote Timer Control menu and
the boiler control panel.
Hot water temperature adjustment
Adjustment can be made from the Remote Timer Control menu and
the boiler control panel.
Summer/Winter Switchover
Summer mode has priority over a possible Remote Timer Control
heating demand.
Eco/Comfort selection
Adjustment can only be made from the boiler control panel.
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature required in the rooms. If the room thermostat is not installed, the boiler will keep the system at the set system delivery setpoint
temperature.
Room temperature adjustment (with optional remote timer control)
Using the remote timer control, set the required temperature in the rooms. The boiler will
adjust the system water according to the required room temperature. For operation with
remote timer control, please refer to the relevant instruction manual.
ECO/COMFORT selection
The unit has a function that ensures a high domestic hot water delivery speed and maximum comfort for the user. When the device is activated (COMFORT mode), the water
contained in the boiler is kept hot, thereby ensuring immediate availability of hot water
on opening the tap, without waiting times.
The user can deactivate the device (ECO mode) by pressing the eco/comfort button
(detail 7 - fig. 1). In ECO mode the display activates the ECO symbol (detail 12 - fig. 1).
To activate the COMFORT mode, press the eco/comfort button (detail 7 - fig. 1) again.
Sliding Temperature
When the optional external probe is installed the boiler adjustment system works with
"Sliding Temperature". In this mode, the heating system temperature is regulated according to weather conditions, to ensure the high comfort and energy efficiency throughout the year. In particular, as the outside temperature increases the system delivery
temperature decreases according to a specific "compensation curve".
With the Sliding Temperature adjustment, the temperature set with the heating buttons
(detail 3 - fig. 1) becomes the maximum system delivery temperature. It is advisable to
set a maximum value to allow system adjustment throughout its useful operating range.
The boiler must be adjusted at the time of installation by qualified personnel. However,
the user can make any further adjustments necessary to optimise comfort levels.
Compensation curve and curve offset
Press the reset button (detail 6 - fig. 1) for 5 seconds to access the “Sliding temperature”
menu; the display shows “CU” flashing.
Water system pressure regulation
The filling pressure read on the boiler water gauge with the system cold must be approx
1.0 bar. If the system pressure falls to values below minimum, the boiler stops and fault
F37 is displayed.
3. INSTALLATION
3.1 General Instructions
B
This unit must only be used for its intended purpose. This unit is designed to
heat water to a temperature below boiling point and must be connected to a
heating system and/or a water supply system for domestic use, compatible with
its performance, characteristics and heating capacity. Any other use is deemed
improper.
THE BOILER MUST ONLY BE INSTALLED BY QUALIFIED PERSONNEL, IN COMPLIANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL MANUAL, THE
PROVISIONS OF CURRENT LAW, THE REQUIREMENTS OF THE TECHNICAL
STANDARDS (BS) AND ANY LOCAL REGULATIONS AND THE RULES OF PROPER
WORKMANSHIP.
Incorrect installation can cause damage or injury for which the manufacturer cannot be
deemed responsible.
The unit must be installed in compliance with these instructions and the following
standards applicable in Great Britain.
Gas Safety Regulations (Installations & Use).
Local Building Regulations.
The Building Regulations (Part L).
The Buildings Standards (Scotland - Consolidated) Regulations).British Standards
Codes of Practice (BSI):
Use the DHW buttons (detail 1 - fig. 1) to adjust the desired curve from 1 to 10 according
to the characteristic (fig. 6). By setting the curve to 0, the sliding temperature adjustment
is disabled.
B.S.
5440
Part 1
Press the heating buttons (detail 3 - fig. 1) to access parallel curve offset; the display
shows “OF” flashing. Use the DHW buttons (detail 1 - fig. 1) to adjust parallel curve offset
according to the characteristic (fig. 7).
B.S.
5440
Part 2
Air flow and ventilation
B.S.
5449
.........
Forced circulation hot water production systems
B.S.
6798
.........
Installation of gas-fired boilers for hot water
B.S.
6891
.........
Gas systems
B.S.
7671
.........
IEE wiring system standards
B.S.
4814
.........
Specifications for expansion tanks
B.S.
5482
.........
LPG systems
B.S.
7593
.........
Water treatment in central heating systems for DHW production
B.S.
5546
.........
Installation of systems for DHW production
Press the reset button (detail 6 - fig. 1) again for 5 seconds to exit the "Sliding Temperature" menu.
If the room temperature is lower than the required value, it is advisable to set a higher
order curve and vice versa. Proceed by increasing or decreasing in steps of one and
check the result in the room.
90
85
80
10
9
8
7
6
5
4
70
Model Water By-Laws (Great Britain)
3
60
2
50
B.S.
20
10
0
-10
Pay attention when handling the boiler insulation panels as they contain materials that
could irritate the skin. No part of the boiler contains asbestos, mercury or CFC's.
-20
The use Personal Protective Equipment (PPE) is always recommended.
fig. 6 - Compensation curves
50
40
30
20
Installation of plastic pipes
Safe handling of materials
20
60
.........
For Northern Ireland the relevant laws in force must be observed.
30
70
5955-8
1
40
90
85
80
Flues
OFFSET = 20
10
9
8
7
6
5
4
3
2
1
90
85
80
Advice for transport and handling
OFFSET = 40
10 9
8
7
6
5
4
3
70
2
60
1
50
40
For lifting and transporting always take suitable safety precautions: keep your back
straight, bend knees, do not turn your body, move feet, avoid bending forward or sideways and keep the load as close as possible to your body.
If possible, use a trolley or other suitable means to carry the boiler.
Grip the boiler firmly and, before lifting it, try and find the point where the load is concentrated in order to establish the centre of gravity and suitably reposition yourself. Ideally
seek assistance in lifting the boiler.
30
20
fig. 7 - Example of compensation parallel curve offset
cod. 3541M540 - Rev. 01 - 06/2017
EN
3
E25 / E29
3.2 Place of installation
3.3 Plumbing connections
B
Important
The combustion circuit is sealed with respect to the place of installation and
therefore the unit can be installed in any room. However, the place of installation must be sufficiently ventilated to prevent the creation of dangerous conditions in case of even slight gas leaks. This safety regulation is provided for by
EEC Directive no. 2009/142 for all gas units, including those with a sealed
chamber.
In any case, the place of installation must be free of dust, flammable materials or objects or
corrosive gases.
The boiler is arranged for wall mounting and comes standard with a hanging bracket. A
paper template for marking the drilling points on the wall is provided in the box. The wall
fixing must ensure stable and effective support for the boiler.
If the system delivery and return pipes follow a path where air pockets can form in certain
places, it is advisable to install vent valves at these points. Also, type "A" drain cocks
must be installed at the lowest points in the system to allow complete emptying.
B
An automatic bypass with flow rate of at least 6 l/min. must be installed (connected as far away as possible from the boiler) if radiators with thermostatic
valves have been connected.
Hot water
C
A
If the unit is enclosed in a cabinet or mounted alongside, a space must be provided for removing the casing and for normal maintenance operations. The minimum measurements to be
respected are given in fig. 8.
The heating capacity of the unit must be previously established by calculating the building's heat requirement according to the current regulations. To ensure proper operation
and long boiler life, the plumbing system must be adequately sized and complete with all
the necessary accessories, including a room thermostat, a thermostattable valve (TRV)
etc. The system delivery and return pipes must have a diameter of at least 22 mm for the
first 3 m of length from the unit.
Gas
Cold water mains
A
Additional expansion
vessel C.H. (if required)
A
Automatic
Bypass
2
1
3
Filling
point C.H.
4
D
B
0
fig. 8 - Minimum distances around the boiler
A
B
C
D
Min. 2,5 cm
Min. 20 cm
Min. 30 cm
Min. 60 cm (via an openable panel)
fig. 9 - Automatic bypass connection
The temperature drop between the delivery manifold and the return to the boiler should
not exceed 20°C.
B
Do not use the water system pipes to earth electrical appliances.
Before installation, carefully wash all the pipes of the heating system to remove any residuals or impurities that could affect proper operation of the unit (as required by BS 7593
Building regs Doc L).
Carry out the connections to the unit as indicated in fig. 34.
B
The safety valve discharge must be connected to a 15 mm diameter copper
pipe descending from the boiler to run off system water in case of overpressure
in the heating circuit. Otherwise, the boiler manufacturer cannot be held liable
if the discharge valve operates and floods the room. The discharge must be run
to the outside of the building to prevent the risk of damage or injury caused by
discharged hot water in case of overpressure in the system.
Connections to the boiler are to be made in such a way as to ensure that its internal pipes
and fittings are free of stress. If a non-return valve is installed also on the DHW circuit (if
provided for), it is necessary to install a safety valve between the boiler and circuit (with
non-return valve at least 3 metres from the boiler) or an expansion tank for domestic use.
4
EN
cod. 3541M540 - Rev. 01 - 06/2017
E25 / E29
Isolation valve kit
3.4 Gas connection
The isolation valves supplied (see fig. 10) must be installed between the boiler and heating system to allow the boiler to be isolated from the system if necessary.
The gas must be connected to the relevant connection (see fig. 29) in conformity with the
current standards, using a rigid metal pipe or a continuous surface flexible s/steel tube
and installing a gas cock between the system and boiler. Make sure all the gas connections are tight.
3.5 Electrical connections
Important
B
C
A
The unit must be connected to an efficient earthing system in conformity with current safety
regulations. Have the efficiency and suitability of the earthing system checked by professionally qualified personnel; the Manufacturer declines any liability for damage caused by failure
to earth the system.
The boiler is prewired and provided with a "Y" type cable (without plug) for connection to the
electric line. The connections to the power supply must be permanent and equipped with a
double-pole switch with contact opening distance of at least 3 mm, installing fuses of max. 3A
between the boiler and the line. Make sure to respect the polarities (LINE: brown wire / NEUTRAL: blue wire / EARTH: yellow/green wire) in connections to the electric line.
B
B
F
D
The unit's power cable must not be replaced by the user; if damaged, switch the unit off and
have the cable replaced by professionally qualified personnel. If replacing the power cable,
only use "HAR H05 VV-F" 3x0.75 mm2 cable with max. ext. diameter of 8 mm.
Room thermostat (optional)
B
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE CONTACTS.
CONNECTING 230 V TO THE ROOM THERMOSTAT TERMINALS WILL PERMANENTLY
DAMAGE THE ELECTRONIC BOARD.
When connecting time controls or a timer, do not take the power supply for these devices from
their breaking contacts Their power supply must be by means of direct connection from the
mains or with batteries, depending on the kind of device.
fig. 10 - Isolation valve kit
A
B
C
D
F
Accessing the electrical terminal block
The electrical terminal block can be accessed after removing the casing. The layout of the terminals for
the various connections is also given in the wiring diagram in fig. 34.
Flow isolation valve 3/4”
Domestic hot water outlet elbow 1/2”
Gas cock 1/2” (yellow)
Cold water inlet valve 1/2”
Return isolation valve 3/4”
Make up water
138
Provision must be made for replacing water lost from the sealed system. Reference
should be made to BS6798, for methods of filling and making up sealed systems. There
must be no direct connection between the boiler's central heating system and the mains
water supply. The use of mains water to charge and pressurise the system directly, is
conditional upon the Local Water Byelaws. Again any such connection must be disconnected after use. Ensure the filling point is on the return pipe to the boiler.
N
L
1
2
Attention - is drawn to the Model Water Byelaws.
FILLING LOOP IN fig. 17 IS NOT SUPPLIED WITH BOILER.
12
34
56
3
4
72
139
fig. 11 - FILLING LOOP (NOT SUPPLIED WITH BOILER)
fig. 12 - Accessing the terminal block
Key
1.
2.
3.
4.
C.H. filling valve
Temporary connection
Cold water supply valve
Double check valve
The maximum domestic water pressure for the inlet supply is 9 bar (130 P.S.I.). If the cold
mains supply exceeds 5 bar (72 P.S.I.), a water governor or pressure reducing valve must
be fitted by the installer into the mains supply in an inconspicuous but accessible position
preferably between 3 and 5 metres (10-16ft) before the appliance. Such a valve must be
approved by WRAS. The fitting of a DHW expansion vessel is also recommended.
Water treatment
If treatment of the water is necessary, EUROTERM recommends the exclusive use of
specific products such as Fernox or Sentinel to be applied in compliance with the producer's instructions. For more information, please contact:
Fernox Manufacturing Co. LTD.
Cookson Electronics, Forsyth Road
Sheerwater, Woking, Surrey, GU21 5RZ
Tel.: 0870 8700362
Sentinel Performance Solutions Ltd
The Heath Business & Technical Park
Runcorn, Cheshire WA7 4QX
Tel.: 0151 424 5351
If the boiler is installed in an existing system, it is necessary to remove any un-
A suitable additives by thoroughly cleaning the system. Cleaning of all the systems must be carried out in compliance with the provisions of Standard B.S.
7593.
areas characterised by the presence of hard water, treatment may be necA Inessary
to prevent the formation of scale in the boiler.
Make sure to use the water treatment product in the correct concentration, in
A compliance with the producer's instructions.
cod. 3541M540 - Rev. 01 - 06/2017
EN
5
E25 / E29
3.6 Fume system
Other coaxial connections
Important
This unit is a "C type" with sealed chamber and forced draught, with air inlet and flue
exhaust to be connected to one of the following flue systems. Before installation, with the
aid of the tables and calculation methods given, check that the pipes of the flue system
do not exceed the maximum permissible lengths. The current standards and local regulations must be observed. It is absolutely essential, to ensure that products of combustion discarging from the terminal cannot re-enter the building, or enter any adjacent
building, through ventilators, windows, doors, natural air infiltration or forced ventilation/
air conditioning.
B
Only a EUROTERM flue system (with respective accessories) must be used
with this unit, as required by BS 5440 and CE standards.
Baffles
Boiler operation requires fitting the baffles supplied with the unit, according to the following tables.
Before inserting the fume outlet pipe, it is therefore necessary to check there is the right diaphragm
(when it is to be used) and that it is correctly positioned. To replace the baffle (rif. 1 - fig. 13), proceed
as indicated in fig. 13.
C1X
C3X
C3X
C3X
fig. 15 - Examples of connection with coaxial pipes (
C1X
C1X
= Air /
= Fumes)
Table. 2 - Typology
Type
Description
C1X
Wall horizontal exhaust and inlet
C3X
Roof vertical exhaust and inlet
For coaxial connection, fit the unit with one of the following starting accessories. For the
wall hole dimensions, refer to the figure on the cover. Any horizontal sections of the fume
exhaust must be kept sloping slightly towards the boiler, to prevent possible condensate
from flowing back towards the outside and causing dripping.
horizontal section to be installed with a minimum 3° (55mm per meA The
ter) fall back to the boiler.
Ø 60
Ø 80
147
120
Ø 127
120
142
1
Ø 100
fig. 13
Standard coaxial installation
Rear outlet
Side outlet
Between
10 e 60 mm
Side view
Ø100
041002X0
125
041006X0
Ø 60
195
205
700
Drill the wall 10÷20 mm
more than the
pipe diameter
700
195
Ø 100
80
Ø100
80
Between
10 e 60 mm
Front view
125
041001X0
fig. 16 - Starting accessory for coaxial ducts
330
400
Table. 3 - Baffles for coaxial ducts
fig. 14 - Standard coaxial installation
Horizontal flue installation
Model E25
1.
2.
Max. permissible length
6m
12 m
Reduction factor 90° bend
1m
0.5 m
3.
4.
5.
Define the position for installing the unit.
If using standard flue this must be installed level. For extended horizontal flue
lengths over 1m a fall of 3° (55mm per meter) of the flue exhaust should be
incorporated back to the boiler.
Make a hole of diameter 10 - 20 mm greater than the nominal diameter of the concentric pipe used.
If necessary, cut the terminal length to size, ensuring that the external pipe protrudes from the wall by between 10 and 60 mm. Remove the cutting burrs.
Connect flue to the boiler, positioning the seals correctly. Seal the flue into the wall
with silicone or sand + cement and cover with wall seals provided.
A
Flue seals should be lubricated with a silicone type grease to prevent damage
(grease not supplied).
Coaxial 60/100
Reduction factor 45° bend
Baffle to use
Model E29
0.5 m
Ø 45
0÷6m
Ø 45
2÷4m
Ø 50
6 ÷ 12 m
no baffle
4÷6m
no baffle
Coaxial 60/100
Coaxial 80/125
Max. permissible length
4m
12 m
Reduction factor 90° bend
1m
0.5 m
Baffle to use
EN
0.25 m
0÷2m
Reduction factor 45° bend
6
Coaxial 80/125
cod. 3541M540 - Rev. 01 - 06/2017
0.5 m
0.25 m
0÷2m
Ø 50
0÷6m
Ø 50
2÷4m
no baffle
6 ÷ 12 m
no baffle
E25 / E29
Connection with separate pipes
Table. 6 - Accessories
C5x
B2x
C3x
max 50 cm
Losses in meq
C1x
= Air /
1KWMA65W
1.2
90° M/F
1KWMA01W
1,5
2.0
1KWMA70W
0.3
0.3
1KWMA85A
2.0
-
1KWMA86A
-
5.0
010027X0
-
12.0
010026X0 +
1KWMA86U
-
4.0
fumes, wall with antiwind
Fume outlet only Ø80
Ø 60
Type
Description
Wall horizontal exhaust and intake. The inlet/outlet terminals must be concentric or close enough to be
undergo similar wind conditions (within 50 cm)
C3X
Roof vertical exhaust and intake. Inlet/outlet terminals like for C12
C5X
Wall or roof exhaust and intake separate or in any case in areas with different pressures. The exhaust and
intake must not be positioned on opposite walls.
C6X
Intake and exhaust with separately certified pipes (EN 1856/1)
B2X
Intake from installation room and wall or roof exhaust
Horizontal
BEND 45° M/F
= Fumes)
C1X
1.6
1.0
TERMINAL air, wall
Table. 4 - Typology
Fume exhaust
1KWMA83W
FLUE Split air/fumes 80/80
fig. 17 - Examples of connection with separate pipes (
Vertical
PIPE 1 m M/F
PIPE SECTION with test point
Ø 80
Air
inlet
2.0
1.8
PIPE 1 m M/F
1KWMA89W
6.0
BEND 90° M/F
1KWMA88W
4.5
041050X0
5.0
1KWMA90A
7.0
REDUCTION 80/60
TERMINAL fumes, wall with antiwind
ATTENTION: CONSIDER THE HIGH PRESSURE LOSSES OF Ø60 ACCESSORIES;
USE THEM ONLY IF NECESSARY AND AT THE LAST FUME EXHAUST SECTION.
Position of terminals
IMPORTANT - THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
P
Q
Ø 81
Q
l
Ø 81
Q
For connection of the separate ducts, fit the unit with the following starting accessory:
B
G
N
C
M
L
N
H
A
H
M
J
Ø 65
Ø 65
Ø 87
F
D, E
K
041039X0
fig. 18 - Starting accessory for separate ducts
Before proceeding with installation make sure the maximum permissible length has not
been exceeded, by means of a simple calculation:
1.
2.
3.
Completely establish the layout of the system of split flues, including accessories
and outlet terminals.
Consult the table 6 and identify the losses in meq (equivalent metres) of every component, according to the installation position.
Check that the sum total of losses is less than or equal to the maximum permissible
length in table 5.
Table. 5 - Baffles for separate ducts
Model E25
Separate ducts
Max. permissible length
Baffle to use
60 meq
Baffle to use
A
Directly under an opening, air inlet, openable window, etc.
300 mm
B
Above an opening, air inlet, openable window, etc.
300 mm
C
Horizontally to an opening, air inlet, openable window, etc.
300 mm
D
Under gutters, drain pipes
75 mm
E
Under cornices or under eaves
200 mm
200 mm
F
Under balconies or garages
From a drain pipe or a vertical drain pipe
150 mm
H
From an internal or external corner
100 mm
I
Above ground level, a roof or balcony
300 mm
Separate ducts
J
From a surface facing the terminal
600 mm
55 meq
K
From a terminal facing the terminal
1200 mm
Ø 45
20 ÷ 45 meq
Ø 50
45 ÷ 60 meq
No baffle
Max. permissible length
Minimum dimensions of fume exhaust terminals
A
G
0 ÷ 20 meq
Model E29
fig. 19
0 ÷ 35 meq
Ø 50
litres
From a garage opening (e.g. door, window) with access to the home
1200 mm
35 ÷ 55 meq
No baffle
M
Vertically from a terminal on the same wall
1500 mm
No
Horizontally from a terminal on the same wall
300 mm
O
From the wall on which the terminal is fitted
P
From a vertical structure on the roof
150 mm
Q
Above the intersection with the roof
300 mm
The horizontal flue section to be installed with a minimum 3° (55mm per
meter) fall back to the boiler.
The air intake pipe should be installed level (or with a slight fall away from the
boiler to prevent rain ingress).
The air intake terminal must be below or to the side of the flue outlet terminal,
NOT above.
•
•
•
NOTES
•
cod. 3541M540 - Rev. 01 - 06/2017
N/A
N/A = Not applicable
Also, the terminal must be at least 150 mm (in case of forced intake) from an opening made
in the structure of the building to house a fitted element such as a window frame.
Positions of condensate drain terminals: if the fume exhaust is provided for at a low level,
the potential effect of the flue gas cloud must be considered. Special flue gas management
kits are available by request.
The flue gas cloud must not be directed towards:
A frequented approach
A window or door
An adjacent property
EN
7
E25 / E29
Connection to multiple flues or single flues with natural draught
Condensate drain
To connect the E25 / E29 boiler to a multiple flue or a single flue with natural draught, the
flue or chimney must be expressly designed by professionally qualified technical personnel in conformity with the current standards and regulations.
The condensate should be run inside as far as is practicably possible. For that purpose,
use a pipe of at least 22 mm diameter and a trap with flexible connection supplied with
the unit to facilitate connection of the condensate drain pipe.
In particular, flues and chimneys must:
The pipe must be in solvent weld plastic and not in copper, since the condensate has a
pH of 4 (slightly acid).
•
•
•
•
•
3.7 Condensate drain connection
Installation
The boiler has an internal trap for draining condensate. Fit the inspection coupling A and
the hose B. Fill the trap with approx. 0.5 L of water and connect the hose to the disposal
system.
If the condensate drain pipe cannot be ended on the inside, it is advisable to run it outside
as shown in the following figure.
The pipe sections going to the outside are exposed to the risk of freezing in particularly
extreme weather conditions. To prevent this from occurring, it is advisable to reduce the
length of the condensate drain pipes and run them on the inside, as much as possible,
before going to the outside. It may also be necessary to insulate the condensate pipe or
apply a trace heating device to prevent freezing of the condensate.
The pipes outside the building must be in solvent weld plastic with increased diameter of
up to 32 or 40 mm with a maximum run of 3m for connection to a condensate collection
soakaway or external drain.
If using a condensate collection soakaway, it must be as indicated in the figure below, or
use a specific system (such as Mc Alpine SOAK1GR) available from the majority of
plumbing and heating suppliers.
External
•
Be sized according to the method of calculation given in the standard.
Be tight with respect to the products of combustion, resistant to the fumes and heat
and impermeable to condensate.
Have a circular or square cross-section (some hydraulically equivalent sections are
permissible), with a vertical progression and with no constrictions.
Have the ducts conveying the hot fumes at a suitable distance or separately from
combustible materials.
Be connected to just one unit per floor, for not more than 6 units (8 if there is a compensation duct or opening).
Have no mechanical suction devices in the main ducts.
Be at low pressure, all along their length, in conditions of stationary operation.
Have at their base a collection chamber for solid materials or condensate, of at least
0.5 m, equipped with an airtight metal door.
Internal
•
•
32/40mm Solvent weld pipework 2.5° Minimum fall. See below
2.5° Minimum fall
Cement seal
25mm
A
B
100mm Dia tube
Lime stone chippings
Hole depth 400mm
fig. 21 - Condensate drain
0.5
litres
fig. 20
8
EN
Ground level
(either/Or)
cod. 3541M540 - Rev. 01 - 06/2017
-300mm
2 Rows of
3x12 mm
Holes
Bottom sealed
E25 / E29
4. SERVICE AND MAINTENANCE
If the TEST mode is activated and enough hot water is drawn to activate the DHW mode,
the boiler remains in TEST mode but the 3-way valve goes to DHW.
4.1 Adjustments
Gas conversion
The unit can work on natural gas or LPG and is factory-set for use with one of these two
gases, as clearly shown on the packing and data plate. Whenever a different gas to that
for which the unit is arranged has to be used, the special conversion kit will be required,
proceeding as follows:
1.
2.
3.
4.
Disconnect the power supply ahead of the boiler and close the gas cock;
Replace the nozzles at the main burner and pilot burner, fitting the nozzles indicated
in the technical data table in cap. 5, depending on the type of gas used
Connect the power supply ahead of the boiler and open the gas cock;
Modify the parameter for the type of gas:
•
•
•
•
•
5.
6.
put the boiler in standby mode
press the DHW buttons details 1 and 2 - fig. 1 for 10 seconds: the display shows
“b01“ flashing.
press the DHW buttons details 1 and 2 - fig. 1) to set parameter 00 (for operation with natural gas) or 01 (for operation with LPG).
press the DHW buttons details 1 and 2 - fig. 1 for 10 seconds.
the boiler will return to standby mode
Adjust the minimum and maximum pressures at the burner (ref. relevant paragraph), setting the values given in the technical data table for the type of gas used
Apply the sticker, contained in the conversion kit, near the data plate as proof of the
conversion.
To deactivate the TEST mode, press the heating buttons (details 3 and 4 - fig. 1) for 5
seconds.
The TEST mode is automatically disabled in any case after 15 minutes or on stopping of
hot water drawing (if enough hot water is drawn to activate the DHW mode).
Pressure adjustment at the burner
Since this unit has flame modulation, there are two fixed pressure settings: minimum and
maximum, which must be those given in the technical data table according to the type of gas.
•
•
•
•
•
•
•
•
4.2 Startup
Before lighting the boiler
•
•
•
•
•
•
•
Check the seal of the gas system.
Check correct prefilling of the expansion tank.
Fill the water system and make sure all air contained in the boiler and the system
has been vented.
Make sure there are no water leaks in the system, DHW circuits, connections or boiler.
Check correct connection of the electrical system and efficiency of the earthing system.
Make sure the gas pressure for heating is that required.
Make sure there are no flammable liquids or materials in the immediate vicinity of
the boiler
•
•
•
•
Connect a suitable pressure gauge to the pressure point "B" downstream of the
gas valve.
Activate the TEST mode (see cap. 4.1).
Press the Eco/Comfort button for 2 seconds to access the gas valve Calibration
mode.
The card goes to the setting “q02”; displaying the actually saved value, by pressing
the DHW buttons .
If the pressure gauge reading is different from the nominal maximum pressure, proceed by increases/decreases of 1 or 2 units of parameter “q02” by pressing the
DHW buttons : the value is stored after each modification; wait 10 seconds for the
pressure to stabilise.
Press the heating button “-” (ref. 3 - fig. 1).
The card goes to the setting “q01”; displaying the actually saved value, by pressing
the DHW buttons .
If the pressure gauge reading is different from the nominal minimum pressure, proceed by increases/decreases of 1 or 2 units of parameter “q01” by pressing the
DHW buttons : the value is stored after each modification; wait 10 seconds for the
pressure to stabilise.
Recheck both adjustments by pressing the heating buttons and adjust them if necessary by repeating the above procedure.
Press the Eco/Comfort button for 2 seconds to return to the TEST mode.
Deactivate the TEST mode (see cap. 4.1).
Disconnect the pressure gauge.
Checks during operation
•
•
•
•
•
•
•
•
•
R
Switch the unit on.
Check the tightness of the fuel circuit and water systems.
Check the efficiency of the flue and air/fume ducts while the boiler is working.
Make sure the water is circulating properly between the boiler and the systems.
Make sure the gas valve modulates correctly in the heating and domestic hot water
production stages.
Check correct boiler lighting by performing various tests, turning it on and off with
the room thermostat or remote control.
Make sure the fuel consumption indicated on the meter matches that given in the
technical data table in cap. 5.
Make sure that with no demand for heating, the burner lights correctly on opening a
hot water tap. Check that in heating mode, on opening a hot water tap, the heating
circulating pump stops and there is regular production of hot water.
Make sure the parameters are programmed correctly and carry out any required
customisation (compensation curve, power, temperatures, etc.).
B
A - Upstream pressure point
B - Downstream pressure point
I - Gas valve electrical connection
R - Gas outlet
S - Gas inlet
1 2 3 4
~ 24W
~ 65W
I
fig. 24 - Gas valve connection
4.3 Commisioning instructions
A
General
PLEASE NOTE: The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type defined on the appliance data plate.
TYPE SGV100
Pi max 65 mbar
24 Vdc - class B+A
Having checked:
•
•
•
That the boiler has been installed in accordance with these instructions,
The integrity of the flue system and the flue seals.
The integrity of the boiler combustion circuit and the relevant seals.
S
fig. 23 - Gas valve
TEST mode activation
Press the heating buttons (details 3 and 4 - fig. 1) together for 5 seconds to activate the
TEST mode. The boiler lights at the maximum heating power set as described in the following section.
The heating and DHW symbols (fig. 22) flash on the display; the heating power will be
displayed alongside.
Heating power adjustment
To adjust the heating power, switch the boiler to TEST mode (see sec. 4.1). Press the
heating buttons detail 3 - fig. 1 to increase or decrease the power (min. = 00 - max. =
100). Press the reset button within 5 seconds and the max. power will remain that just
set. Exit TEST mode (see sec. 4.1).
Measure the gas rate
II
III
IIIII
eco
comfort
reset
GAS RATES (NATURAL GAS)
AFTER 10 MINUTES FROM COLD
IIII
II
II
II
IIII
IIII
II
II
IIII
Measure the gas rate and check against following table:
IIIII
III
BOILER MODEL
Maximum rate
m3/h
Minimum rate
ft3/h
m3/h
ft3/h
fig. 22 - TEST mode (heating power = 100%)
E25
2.646
93.58
1.06
37.49
Press the heating buttons (details 3 and 4 - fig. 1) to increase or decrease the power
(min.=0%, max.=100%).
E29
2.963
104.80
1.06
37.49
Press the DHW button "-" (detail 1 - fig. 1) and boiler power is immediately adjusted to
min. (0%). Press the DHW button "+" (detail 2 - fig. 1) and boiler power is immediately
adjusted to max. (100%).
cod. 3541M540 - Rev. 01 - 06/2017
EN
9
E25 / E29
4.4 Routine servicing, maintenance & repair
Combustion check
General
Connect the flue gas analyzer to the flue gas sampling point as shown in the fig. 26 and
check combustion as described in table 7 and table 8.
PLEASE NOTE: During routine servicing, and after any maintenance or change of part
of the combustion circuit, we recommend that the following is checked:
•
•
•
•
•
The integrity of the flue system and the flue seals;
The integrity of the boiler combustion circuit and the relevant seals;
The operational (working) gas inlet pressure at maximum rate, as described in
section 4.4;
The gas rate, as described in section 4.4;
The combustion performance, as described in section 3.4 Combustion check.
1.
2.
3.
4.
5.
Press the CH button for 5 seconds to place boiler into test mode
Wait for 10 minutes for the boiler to stabilize fully
Take the measurement and record
Take the boiler to minimum output by pressing the CH – button, allow the boiler to
stabilize for a further 10 minutes.
Take the measurement and record.
1
Competence to carry out the check of combustion performance
PLEASE NOTE: BS 6798: 2009 Specification for installation and maintenance of
gas-fired boilers of rated input not exceeding 70 kW net advises that:
•
•
•
2
The person carrying out a combustion measurement should have been assessed
as competent in the use of a flue gas analyser and the interpretation of the results;
The flue gas analyser used should be one meeting the requirements of BS7927 or
BS-EN50379-3 and be calibrated in accordance with the analyser manufacturers’
requirements, and
Competence can be demonstrated by satisfactory completion of the CPA1 ACS assessment, which covers the use of electronic portable combustion gas analysers in
accordance with BS 7967, Parts 1 to 4.
1
2
Periodical check
To keep the unit working properly over time, it is necessary to have qualified personnel
make an annual check that includes the following tests:
•
•
•
•
•
•
•
•
•
•
•
•
The control and safety devices (gas valve, flow meter, thermostats, etc.) must function correctly.
The flue pipe must be fully efficient.
The airtight chamber must be sealed
The air-flue terminal and ducts must be free of obstructions and leaks
The condensate evacuation system must be efficient with no leakage or obstructions.
The burner and exchanger must be clean and free of scale. When cleaning, do not
use chemical products or wire brushes.
The electrode must be free of scale and properly positioned.
The gas and water systems must be leak free.
The water pressure in the heathing system must be about 1 bar; otherwise, bring it
to that value.
The circulation pump must not be blocked.
The expansion tank must be filled.
The gas flow and pressure must correspond to that given in the respective tables.
The electrode must be properly positioned and free of deposits.
=
=
3 ± 0,5
•
fig. 26 - Flue gas sampling point
1 = Air - 2 = Flue gas
Tabella. 7 - Maximum rate
ACCEPTABLE COMBUSTION RANGE
MAXIMUM RATE AFTER 10 MINUTES FROM COLD
E25
0.004
E29
0.004
The boiler casing, panel and aesthetic parts can be cleaned with a soft damp
cloth, possibly soaked in soapy water. Do not use any abrasive detergents and
solvents.
EN
CO2 LPG
7,2 ÷ 7,9
8,2 ÷ 8,9
ACCEPTABLE COMBUSTION RANGE
MINIMUM RATE AFTER 10 MINUTES FROM COLD
fig. 25 - Electrode positioning
10
CO2 NG
Tabella. 8 - Minimum rate
Boiler Model
A
CO/CO2 RATIO
Boiler Model
CO/CO2 RATIO
E25
0.004
E29
0.004
CO2 NG
CO2 LPG
5,7 ÷ 6,2
6,1 ÷ 6,6
If the combustion reading is greater than the acceptable value AND the integrity of
the complete flue system and combustion circuit seals have been verified and the
inlet gas pressure (and gas rate) have been verified, proceed as in section Setting
the Air/Gas Ratio valve.
cod. 3541M540 - Rev. 01 - 06/2017
E25 / E29
4.5 Troubleshooting
Diagnostics
Fault
code
Fault
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault, the
display will flash together with the fault symbol (detail 11 - fig. 1) indicating the fault code.
A23
Set nominal system water
pressure not reached within Wrong card parameter setting
4 minutes
Check the card parameter and modify it if necessary
A24
4 fillings within 24 hours
Check the card parameter and modify it if necessary
F34
Supply voltage under 180V. Electric mains trouble
Check the electrical system
F35
Faulty mains frequency
Electric mains trouble
Check the electrical system
Pressure too low
Fill the system
Water pressure switch damaged or
not connected
Check the sensor
Probe damaged or wiring shorted
Check the wiring or replace the sensor
There are faults that cause permanent shutdown (marked with the letter "A"): to restore
operation, press the RESET button (detail 6 - fig. 1) for 1 second or RESET on the optional remote timer control if installed; if the boiler fails to start, it is necessary to eliminate
the fault.
Faults marked with the letter "F" cause temporary shutdowns that are automatically reset
as soon as the value returns within the boiler's normal working range.
List of faults
A01
A02
A03
Fault
No burner ignition
Flame present signal with
burner off
Overtemperature protection activation
Possible cause
Incorrect system water
pressure
F39
External probe fault
A41
Sensor positioning
Delivery sensor or DHW sensor
detached from the pipe
Check the correct positioning and
operation of the sensors
F42
Heating sensor fault
Sensor damaged
Replace the sensor
No system H2O circulation
Check the circulating pump
Air in the system
Vent the system
Modulating Operator wiring disconnected
Check the wiring
Faulty gas valve
Check the gas valve and replace it if
necessary
Inlet/exhaust flue obstruction
Check the flue
Cure
Excessive condensate level
Empty / clean the trap
No gas
Check the regular gas flow to the
boiler and that the air has been eliminated from the pipes
Ignition/detection electrode fault
Check the wiring of the electrode and
that it is correctly positioned and free
of any deposits
Faulty gas valve
Check the gas valve and replace it if
necessary
Gas valve wiring disconnected
Check the wiring
Ignition power too low
Adjust the ignition power
Electrode fault
Check the ionisation electrode wiring
Card fault
Check the card
Heating sensor damaged
Check the correct positioning and
operation of the heating sensor
No water circulation in the system
Check the circulating pump
Air in the system
Vent the system
Wrong card parameter setting
Cure
F37
Table. 9
Fault
code
Possible cause
F43
F50
A51
Exchanger protection activation.
Gas valve fault
Poor combustion fault
Probe disconnected after activating Reconnect the external probe or disthe sliding temperature
able the sliding temperature
Exchangers dirty (clogged on water
side)
Clean the exchangers
F04
Fume thermostat fault
Faulty water circulation
Fume thermostat contact open
Check the thermostat
Wiring disconnected
Check the wiring
Fume pressure switch fault
Wrong card parameter setting
(contact fails to close)
F05
Fan fault
Check the card parameter and modify it if necessary
Wiring disconnected
Check the wiring
Faulty fan
Check the fan
Card fault
Check the card
Check the gas pressure
A06
No flame after the ignition
phase
Low pressure in the gas system
Burner minimum pressure setting
Check the pressures
F07
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify it if necessary
Wiring disconnected
Check the wiring
A09
Gas valve fault
Faulty gas valve
Check the gas valve and replace it if
necessary
F10
Delivery sensor 1 fault
Sensor damaged
Wiring shorted
Check the wiring or replace the sensor
Wiring disconnected
Sensor damaged
F11
DHW sensor fault
Wiring shorted
Check the wiring or replace the sensor
Wiring disconnected
Sensor damaged
F14
Delivery sensor 2 fault
Wiring shorted
Check the wiring or replace the sensor
Wiring disconnected
A16
F20
A21
Gas valve fault
Combustion control fault
Poor combustion fault
Wiring disconnected
Check the wiring
Faulty gas valve
Check the gas valve and replace it if
necessary
Fan fault
Check the fan and fan wiring
Wrong baffle
Check the baffle and replace it if necessary
Flue not correctly sized or
obstructed
Check the flue
Fault F20 generated 6 times in the
last 10 minutes
See fault F20
cod. 3541M540 - Rev. 01 - 06/2017
EN
11
E25 / E29
5. TECHNICAL DATA AND CHARACTERISTICS
5 Sealed chamber
37 Cold water inlet filter
7 Gas inlet - Ø 1/2”
38 Flow switch
8 Domestic hot water outlet - Ø 1/2”
39 Water flow limiter
9 Cold water inlet - Ø 1/2”
42 DHW temperature sensor
10 System delivery - Ø 3/4”
44 Gas valve
11 System return - Ø 3/4”
56 Expansion tank
14 Safety valve
81 Ignition and detection electrode
16 Fan
195
Table. 10 - key of fig. 31, fig. 32 and fig. 33
95 Diverter valve
19 Combustion chamber
114 Water pressure switch
22 Burner
126 Flue gas safety thermostat
27 Copper exchanger for heating and hot water
194 DHW exchanger
28 Fume manifold
241 Automatic bypass
32 Heating circulating pump
277 Fume recuperator
36 Automatic air vent
278 Double sensor (safety + heating)
80
115
205
fig. 28 - Top view
5.1 Dimensions and connections
59
76
54 51
80
80
81
Ø110÷120
120
fig. 29 - Bottom view
680
700
330
2
1
3
0
4
400
fig. 27 - Front view
fig. 30 - Side view
12
EN
cod. 3541M540 - Rev. 01 - 06/2017
176
124
117
E25 / E29
5.3 Hydraulic circuit
5.2 General view and main components
126
126
277
5
16
277
16
27
19
28
56
278
81
278
27
114
22
194
95
14
194
14
32
36
95
56
36
241
114
42
38
10 42
8 44 7 39 9 38
37
11 32
10
8
11
9
fig. 32 - Heating circuit
fig. 31 - General view
126
277
16
278
27
114
56
36
194
95
14
32
241
42
38
10
8
9
11
fig. 33 - DHW circuit
cod. 3541M540 - Rev. 01 - 06/2017
EN
13
E25 / E29
5.4 Technical data table
Date
Unit
E25
PRODUCT IDENTIFICATION CODES
E29
0CBF4IGE
GAS TYPE
0CBF5IGE
II2H3P (GB)
COUNTRIES OF DESTINATION
GB
Nominal CH heat input
kW
Hs=27.7 - Hi=25.0
Hs=31.1 - Hi=28.0
Minimum CH heat input
kW
Hs=8.3 - Hi=7.5
Hs=9.2 - Hi=8.3
Nominal CH input (80/60°C)
kW
24.1
27
Minimum CH input (80/60°C)
kW
7.1
7.9
Nominal condensing output (50/30°C)
kW
25.9
29
Minimum condensing output (50/30°C)
kW
7.8
8.6
Nominal DHW heat input
kW
Hs=27.8 - Hi=25.0
Hs=31.1 - Hi=28.0
Minimum DHW heat input
kW
Hs=8.3 - Hi=7.5
Hs=9.2 - Hi=8.6
Nominal DHW input
kW
24.3
27.0
Minimum DHW input
kW
7.1
7.9
%
Hs=86.9 - Hi=96.5
Hs=86.9 - Hi=96.5
Nominal useful efficiency (80-60°C)
Minimum useful efficiency (80-60°C)
%
Hs=85.5 - Hi=95.0
Hs=85.5 - Hi=95.0
Nominal useful efficiency (50-30°C)
%
Hs=93.2 - Hi=103.5
Hs=93.2 - Hi=103.5
Minimum useful efficiency (50-30°C)
%
Hs=93.0 - Hi=103.3
Hs=93.0 - Hi=103.3
Efficiency 30%
%
Hs=95.7 - Hi=106.3
Hs=95.7 - Hi=106.3
11 x 1.35
11 x 1.35
20
20
Burner nozzles G20
no. x Ø
Gas inlet pressure G20
mbar
Max. pressure at burner G20
mbar
11
13.5
Min. pressure at burner G20
mbar
1,2
1,4
Nominal gas rate G20
m3/h
2.65
2.96
3/h
m
0.79
0.88
no. x Ø
11 x 0.82
11 x 0.82
37
37
Minimum gas rate G20
Burner nozzles G31
Gas inlet pressure G31
mbar
Max. pressure at burner G31
mbar
29
35
Min. pressure at burner G31
mbar
3.0
3.5
Nominal gas rate G31
kg/h
1.94
2.18
Minimum gas rate G31
kg/h
0.58
0.64
NOx emissions class
3
3
Max. working pressure in heating
bar
-
2.5
2.5
Min. working pressure in heating
bar
0.8
0.8
Max. heating temperature
°C
90
90
CH water content
litres
1.5
1.5
CH expansion vessel capacity
litres
8
8
CH expansion vessel charge pressure
bar
1
1
Max. working pressure in DHW
bar
9
9
bar
0.3
0.3
Water flow rate Dt 25°C
Min. working pressure in DHW
l/min
13.9
15.6
Water flow rate Dt 30°C
l/min
11.6
13.0
IP
X5D
X5D
Protection rating
Supply voltage
230V/50Hz
230V/50Hz
Electrical power input
V/Hz
W
96
112
Empty weight
kg
35
35
C12-C22-C32-C42-C52-C62-C72-C82-C92
Type of unit
B22-B32
PIN CE
14
--
EN
cod. 3541M540 - Rev. 01 - 06/2017
E25 / E29
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cod. 3541M540 - Rev. 01 - 06/2017
EN
15
E25 / E29
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16
EN
cod. 3541M540 - Rev. 01 - 06/2017
Ϯϯ͕ϰϱϮ
ϭϵ
E25 / E29
5.5 Diagrams
Pressure - flow diagrams
mbar
E25 MODEL
35
A
30
25
20
15
B
10
5
7
8
9
mbar
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
kW
E29 MODEL
35
30
A
25
20
15
B
10
5
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
kW
A = LPG - B = NATURAL GAS
Circulating pump head / pressure losses
H [m H2O]
6
5
B
4
3
2
1
0
A
0
0.5
1
1.5
Q [l/h]
2
2.5
A = Boiler pressure losses - 1,2 e 3 = Circulating pump speed
cod. 3541M540 - Rev. 01 - 06/2017
EN
17
E25 / E29
5.6 Wiring diagram
193
1kW
81
LC32
123
62
ABM01
95
LINK
N
°
114 38
L
L
N
T °T
T
°
42
278
44
126
138
L N
230V
AUX
N
32
1234
72
139
fig. 34 - Wiring diagram
A
Attention: Remove the jumper on the terminal block before connecting the room thermostat or remote timer control.
16
32
38
42
44
62
72
81
95
114
126
138
139
193
278
Fan
Heating circulating pump
Flowswitch
DHW temperature sensor
Gas valve
Time clock (not fitted)
Room thermostat (not fitted)
Ignition and detection electrode
Diverting valve
Water pressure switch
Contact fume thermostat
External probe (optional)
Remote timer control (not fitted)
Trap
Double sensor (Safety + Heating)
18
EN
cod. 3541M540 - Rev. 01 - 06/2017
16
L
230V
50 Hz
Benchmark Commissioning and
Servicing Section
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© Heating and Hotwater Industry Council (HHIC)
GAS BOILER SYSTEM COMMISSIONING CHECKLIST
MODENA 38C HE
This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating
compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.
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Before contacting (XURWHUP please have available the
completed BENCHMARK document (located in the back of this manual),
boiler serial number and model detail.
For Technical assistance during the installation, call our
Technical Helpline on 0843 479 0479.
You will be required to provide your Gas Safe Register Number.
Should you require a Service Engineer to visit, call our
Service Centre on 0843 479 0479.
Calls to these numbers are charged at National Rate from BT landlines.
Calls made from mobile networks may be considerable more.
Phone numbers:
Installer
Service Engineer
BECAUSE OF OUR CONSTANT ENDEAVOUR FOR IMPROVEMENT DETAILS
MAY VARY SLIGHTLY FROM THOSE QUOTED IN THESE INSTRUCTIONS.
ALL SPECIFICATIONS SUBJECT TO CHANGE
Please note - to avoid incurring unnecessary expense, in the event of a boiler shut down, check
this is not caused by lack of electricity supply, gas supply or low water pressure before calling our
Customer Service Helpline.
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