ISO 9001: 2000
CERTIFIED COMPANY
FORMAT DGT
ES
PT
ENG
Fonderie SIME S.p.A
Cod. 6304368B - 10/10
CONTENTS
1
DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
64
2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
69
3
CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
80
4
USE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
84
IMPORTANT
When carrying out commissioning of the boiler, you are highly recommended to perform the following checks:
– Make sure that there are no liquids or inflammable materials in the immediate vicinity of the boiler.
– Make sure that the electrical connections have been made correctly and that the earth wire is connected to a
good earthing system.
– Open the gas tap and check the soundness of the connections, including that of the burner.
– Make sure that the boiler is set for operation for the type of gas supplied.
– Check that the flue pipe for the outlet of the products of the combustion is unobstructed and has been properly
installed.
– Make sure that any shutoff valves are open.
– Make sure that the system is charged with water and is thoroughly vented.
– Check that the circulating pump is not locked.
– Purge the system, bleeding off the air present in the gas pipe by operating the pressure relief valve on the gas
valve inlet.
– The installer must provide the user with instruction in operation of the boiler and safety devices and hand over the
instruction booklet to the user.
FONDERIE SIME S.p.A. of Via Garbo 27 - Legnago (VR) - Italy declares that its hot water boilers, which bear the
CE mark under Gas Directive 90/396/CEE and are fitted with a safety thermostat calibrated to a maximum of
110°C, are not subject to application of PED Directive 97/23/CEE as they meet the requirements of article 1
paragraph 3.6 of the Directive.
FORMAT DGT - ENGLISH
INSTALLER INSTRUCTIONS
1
DESCRIPTION OF THE BOILER
1.1
INTRODUCTION
“FORMAT DGT” are the gas fuelled burner
groups for heating and the production of
hot sanitary water, constructed to satisfy
the needs of collective residential housing
and modern plant.
They are apparatuses which conform to
1.2
DIMENSIONI
1.2.1
“25 OF” model (fig. 1)
the European directives 2009/142/CE,
2004/108/CE, 2006/95/CE and
92/42/CE.
The can be fuelled by natural gas (G20) or
LPG (G30-G31).
This booklet gives the instructions for the
following models:
– “FORMAT DGT 25 OF” open combustion
chamber with natural draw.
– “FORMAT DGT 25-30 BF” sealed combustion chamber forced flow.
The instructions given in this manual are
provided to ensure proper installation and
perfect operation of the appliance.
D
CONNECTIONS
R C.H. return
G 3/4” (UNI-ISO 228/1)
M C.H. flow
G 3/4” (UNI-ISO 228/1)
G Gas connection
G 3/4” (UNI-ISO 228/1)
E D.H.W. inlet
G 1/2” (UNI-ISO 228/1)
U D.H.W. outlet
G 1/2” (UNI-ISO 228/1)
DIMENSIONS
D mm
25 OF
130
Fig. 1
1.2.2
“25 - 30 BF” models (fig. 1/a)
CONNECTIONS
R C.H. return
G 3/4” (UNI-ISO 228/1)
M C.H. flow
G 3/4” (UNI-ISO 228/1)
G Gas connection
G 3/4” (UNI-ISO 228/1)
E D.H.W. inlet
G 1/2” (UNI-ISO 228/1)
U D.H.W. outlet
G 1/2” (UNI-ISO 228/1)
DIMENSIONS
L mm
K mm
25 BF
400
203
30 BF
450
221
Fig. 1/a
64
1.3
TECHNICAL FEATURES
FORMAT DGT
25 OF
25 BF
30 BF
ES
PT
Heat output
Nominal
kW
22.8
23.6
27.8
Reduced
kW
8.5
7.5
9.0
Nominal
kW
25.0
25.5
30.0
Reduced
kW
Heat input
10.0
9.2
10.8
Thermal yield 100% useful
91.3
93.0
93.0
Thermal yield useful at 30% of load
90.1
90.5
91.1
Termal efficiency (CEE 92/42 directive)
!!
!!!
!!!
Losses after shutdown to 50°C (EN 483)
Supply voltage
W
V-Hz
182
82
92
230-50
230-50
230-50
Adsorbed power consumption
W
85
110
115
Electrical protection grade
IP
X4D
X5D
X5D
C.H. setting range
°C
40÷80
40÷80
40÷80
3.40
3.25
3.50
Water content boiler
l
Maximum water head
bar
3
3
3
Maximum temperature
°C
85
85
85
Header tank capacity
l
8
8
8
Header tank pressure
bar
1.2
1.2
1.2
°C
D.H.W. setting range
10÷60
10÷60
10÷60
D.H.W. flow rate (EN 625)
l/min
10.9
11.3
13.0
Continuous D.H.W. flow rate Δt 30°C
l/min
10.9
11.3
13.4
Minimum D.H.W. flow rate
l/min
2.0
2.0
2.0
D.H.W pressure min/max
bar
0.2/7
0.2/7
0.2/7
D.H.W. pressure min. nom. power
bar
0.3
0.4
0.3
Smokes temperature min/max
°C
83/110
94/116
100/125
Smokes flow min/max
g/s
16/18
17/16
19/19
CE certification
No.
1312BU5373
1312BU5372
II2H3+
II2H3+
II2H3+
Category
Type of appliance
NOx emission class
Weight when empty
kg
ENG
1312BU5372
B11BS
B22P-52P/C12-32-42-52-62-82
B22P-52P/C12-32-42-52-62-82
3 (< 150 mg/kWh)
3 (< 150 mg/kWh)
3 (< 150 mg/kWh)
26
30
31
Main burner nozzle
Quantity nozzles
n°
13
11
13
Nozzle diameter G20
mm
1.30
1.30
1.30
Nozzle diameter G30/G31
mm
0.72
0.80
0.78
Natural gas (G20)
m3/h
2.61
2.70
3.17
LPG (G30/G31)
kg/h
1.96
2.01
2.37
mbar
1.6/9.5
1.9/13.5
1.9/13.2
Gas consumption *
Burner gas pressure min/max
Natural gas (G20)
Butane (G30)
mbar
4.6/27.7
3.7/27.9
4.1/26.8
Propane (G31)
mbar
4.6/35.7
3.7/35.9
4.1/34.8
mbar
20
20
20
Butane (G30)
mbar
28–30
28–30
28–30
Propane (G31)
mbar
37
37
37
Gas supply pressure
Natural gas (G20)
* Gas consumption figures express the lowest calorific power of pure gas under standard conditions at 15°C – 1013 mbar; this figure may differ from the actual
figure, which is dependent on gas composition and environmental conditions.
65
1.4
FUNCTIONAL DIAGRAM (fig. 2)
KEY
1 Fan (vers. BF)
2 Primary exchanger
4 C.H. sensor (SM1/SM2)
5 Combustion chamber
6 Gas valve
7 Water pressure valve
8 Circulator with air release vent
10 Hydrometer
11 Expansion vessel
12 D.H.W. flow meter
13 By-pass
14 D.H.W. filter
15 Boiler discharge
16 3 BAR safety valve
18 Connection plate (optional)
19
20
21
22
23
24
25
26
D.H.W. cock (optional)
Gas cock (optional)
C.H. flow cock (optional)
C.H. return cock (optional)
Loading system
D.H.W. exchanger with plates
C.H. filter
Deviator valve
CONNECTIONS
U D.H.W. outlet
E D.H.W. inlet
G Gas connection
M C.H. flow
R C.H. return
Fig. 2
66
1.5
MAIN COMPONENTS (fig. 3 - fig. 3/a)
ES
PT
“25 OF” model
ENG
8
7
6
9
5
10
4
11
3
2
1
KEY
1 Control panel
2 Circulation pump
3 Air relief valve
4 Burners
5 Expansion vessel
6
7
8
9
10
11
C.H. sensor (SM1/SM2)
Smoke stat
Smoke chamber
Primary exchanger
Ignition/detection electrode
Gas valve
Fig. 3
67
“25 - 30 BF” models
7
8
6
9
5
4
10
3
11
2
1
KEY
1 Control panel
2 Circulation pump
3 Air relief valve
4 Burners
5 Expansion vessel
6
7
8
9
10
11
C.H. sensor (SM1/SM2)
Air pressure switch
Fan
Primary exchanger
Ignition/detection electrode
Gas valve
Fig. 3/a
68
2
INSTALLATION
The boiler must be installed in a fixed location and only by specialized and qualified
firms in compliance with all instructions contained in this manual. Furthermore, the
installation must be in accordance with current standards and regulations.
2.1
INSTALLATION
- In the rooms where “type B” boilers are
installed, the air required for correct
combustion of the gas consumed by the
appliance must be able to flow in. It is
therefore necessary to make openings
that cannot be blocked in the outer walls,
which must be at least 6 cm2 for every
kW of thermal capacity installed and
with, in any case, a minimum of 100
cm2.
- “Type C” appliances, with combustion
chamber and air supply sealed off from
the environment, can be installed in any
room in the house.
- “Type B and C” boilers are suitable for
functioning in a partially protected place,
as according to EN 297, with maximum
environmental temperature of 60°C and
minimum of -5°C. We recommend installation of these boilers under the protruding slope of a roof, on a balcony, or in a
protected niche, always providing they
are not directly exposed to adverse
weather (rain, hail, snow). The boilers are
provided already equipped with anti-freeze functions.
2.1.1
Anti-freeze function
The boilers are equipped with anti-freeze
function which activates the pumps and the
burner when the temperature of the water
contained inside the appliance drops to
below value PAR 10. The anti-freeze function
is ensured, however, only if:
- the boiler is correctly connected to the
gas and electricity supply circuits;
- the boiler is constantly fed;
- the boiler ignition is not blocked;
- the essential components of the
boiler are all in working order
In these conditions the boiler is protected
against frost down to an environmental temperature of -5°C.
ATTENTION: In the case of installation in a
place where the temperature drops below
0°C, the connection pipes must be protected.
2.2
COMPLEMENTARY
ACCESSORIES
To facilitate connecting the boiler to the
system, the following accessories can be
supplied on request, complete with instructions for assembly:
- Installation plate code 8075427
- Elbows and gas taps/sanitary water out-
system or add an adequate inhibitor invalidates the device’s warranty.
Gas connections must be made in accordance with current standards and regulations.
When dimensioning gas pipes from the
meter to the module, both capacity volume
(consumption) in m 3 /h and gas density
must be taken into account.
The sections of the piping making up the
system must be such as to guarantee a supply of gas sufficient to cover the maximum
demand, limiting pressure loss between the
gas meter and any apparatus being used to
not greater than:
put set code 8075418
- Taps kit code 8091806
- Polyphosphates doser kit code 81071700
- Kit of couplings for replacing wall-hung
boilers of other makes code 8093900
- Solar kit for the instantaneous code
8105101
- Protection connection kit “25 BF” code
8094520
- Protection connection kit “30 BF” code
8094521
2.3
CONNECTING UP SYSTEM
To protect the heat system from damaging
corrosion, incrustation or deposits, before
installation it is extremely important to clean
the system using suitable products such as,
for example, Sentinel X300 (new systems),
X400 and X800 (old systems) or Fernox
Cleaner F3.
Complete instructions are provided with the
products but, for further information, you
may directly contact SENTINEL PERFORMANCE SOLUTIONS LTD or FERNOX COOKSON ELECTRONICS. For long-term protection agains corrosion and deposits, the use
of inhibitors such as Sentinel X100 or Fernox Protector F1 is recommended after
cleaning the system. It is important to check
the concentration of the inhibitor after each
system modification and during maintenance following the manufacturer’s instructions
(specific tests are available at your dealer).
The safety valve drain must be connected to
a collection funnel to collect any discharge
during interventions. If the heating system is
on a higher floor than the boiler, install the
on/off taps supplied in kit optional on the
heating system delivery/return pipes.
WARNING: Failure to clean the heat
1
7
ES
PT
ENG
– 1.0 mbar for family II gases (natural gas);
– 2.0 mbar for family III gases (butane or
propane).
An adhesive data plate is sticked inside the
front panel; it contains all the technical data
identifying the boiler and the type of gas for
which the boiler is arranged.
2.3.1
Filter on the gas pipe
The gas valve is supplied ex factory with an
inlet filter, which, however, is not adequate to
entrap all the impurities in the gas or in gas
main pipes. To prevent malfunctioning of the
valve, or in certain cases even to cut out the
safety device with which the valve is equipped, install an adequate filter on the gas pipe.
2.5
SYSTEM FILLING (fig. 4)
Filling of the boiler and the system is done by
the system filling (3 fig. 4).
The charge pressure, with the system cold,
8
9
2
KEY
1 D.H.W. flow meter (white)
2 Sensor effect HALL (blue)
3 System filling (blue)
4 3 BAR safety valve
5 Boiler discharge
6 Automatic by-pass (blue)
3
4
5
6
7 Water pressure valve
8 Deviator valve
9 C.H. filter (blue)
NOTE: They are evidenced in blue/white
the members for which are previewed
the verification and the control.
Fig. 4
69
x
2
4
2.5.1
min 1,3 m - max 5 m
must be between 1 and 1.2 bar.
Filling must be done slowly so as to allow
any air bubbles to be bled off through the air
valves.
Should the pressure have risen well above
the limit expected, discharge the over pressure by opening the pressure-relief valve.
Emptying the system (fig. 4)
y
Use the drain tap to empty the system (5
fig. 4). Turn off the boiler before doing this.
3
7
6
2
3 8
C42
2.6
FLUES/CHIMNEYS
C32
A chimney or flue for the evacuation of the
combustion products into the atmosphere
must correspond to the requisites prescribed by the laws in force.
In particular, the specific prescriptions of
law relative to boilers with natural draught
in collective pipes (type B) and those for boilers with forced draught (type C) must be
respected.
2.6.1
x + y = max 5,0 m per vers. "20"
x + y = max 3,5 m per vers. "25"
x + y = max 3,0 m per vers. "30-35"
IMPORTANT:
– Each additional 90° cur ve
installed reduces the available
length by 1.0 metres.
– Each additional 45° cur ve
installed reduces the available
length by 0.50 metres.
- The insertion of the condensation collector (8) is obligatory
for vertical stretches of more
than 1.3 metres.
Ducting of existing chimneys
To recover or duct existing chimneys, ducts
declared suitable for the purpose by the
manufacturer must be used, and the installation and use modalities indicated by the
said manufacturer must also be followed
as well as the prescriptions of Standard
UNI 10845.
2.7
INSTALLATION OF COAXIAL
DUCT (versions "BF")
2.7.1
Accessories 60/100 (fig. 5)
The 60/100 coaxial duct is supplied on
request in kit code 8084811.
The diagrams of fig. 5 illustrate some
examples of different types of discharge
modalities allowed and the maximum
lengths that can be reached.
max 5,0 m per vers. “20”
max 3,5 m per vers. "25"
max 3,0 m per vers. "30-35"
1
C12
KEY
1 Coaxial flue kit L. 810 code 8084811
2 a Extension L. 1000 code 8096103
2 b Extension L. 500 code 8096102
3 Vertical extension L. 200 code 8086908
4 Additional 90° curve code 8095801
6 Articulated tile code 8091300
7 Roof outlet terminal L. 1284 code 8091200
8 Vertical condensation collector L. 200 code 8092803
Fig. 5
2.7.2
Diaphragm for 60/100
coaxial duct (fig. 5/a)
The boiler is supplied with a diaphragm of
ø 79 (version 25 BF), ø 81 (version 30
BF).
Use the diaphragms according to the indications of fig. 5/a.
For discharge types C12-C42, use the diaphragms supplied with the boiler:
- ø 79.0 for version “25” only when the length of the coaxial duct is less than 1 metre.
- ø 81.0 for version “30” only when the length of the coaxial duct is less than 1 metre.
For discharge types C32, use the following diaphragms according to the length of the duct and without
additional curves:
Installations with vertical
extension L. 200 code 8086908 *
Models “25 BF - 30 BF”
Diaphragm
Diaphragm
Without
ø 79
ø 81
diaphragm
L max = 2.5 m L max = 2.5 m
L max = 5 m
* Minimum length of duct L = 1.3 m.
70
Installations with vertical condensation
collector code 8092803 *
Models “25 BF - 30 BF”
Diaphragm
Diaphragm
Without
ø 79
ø 81
diaphragm
L max = 2.5 m
L max = 2.5 m
L max = 5 m
Fig. 5/a
Accessories ø 80/125
(fig. 6)
2.8
The ø 80 coaxial duct is supplied on request in a kit code 8084830 complete with
assembly instructions.
With the curve supplied in the kit, the maximum horizontal length of the duct must be
no more than 6 metres.
The diagrams in fig. 6 show some examples
of the different types of ø 80/125 coaxial
discharge modalities.
INSTALLATION OF SEPARATE
DUCTS (vers. “25-30 BF”)
y
2
2
3 8
5
– With ducts with discharge positioned
outside the building, or in cold environments, insulation is necessary to avoid
difficulty in starting the burner. In these
cases, a condensation system on the
pipes must be provided for.
– With aspiration directly from outside,
when the duct is longer than 1 metre, it
is advisable to insulate the said duct in
order to avoid the formation of dew on
the outside of the pipe when the weather
x
4
is particularly cold.
When installing, the provisions of the laws
in force must be adhered to, as well as certain practical suggestions:
ES
PT
ENG
– If the pipe passes through inflammable
walls, insulate the stretch of the fumes
discharge pipe that passes through the
7
min. 4 m - max 7 m
2.7.3
6
2
5
8
C42
C32
x + y = min. 3,5 m/max 6 m "25"
x + y = min. 3,0 m/max 6 m "30-35"
min. 3,5 m - max 6 m "25"
min. 3,0 m - max 6 m "30-35"
1
1
C12
KEY
1
2
3
4a
4b
5
6
7
8
2
1
Coaxial duct kit code 8084830
Extension L. 1000 code 8096130
Vertical extension L. 200 with coupling code 8086908
Additional 90° curve code 8095820
Additional 45° curve code 8095920
Adapter for 80/125 code 8093120
Tile for joint code 8091300
Terminal for roof exit L. 1284 code 8091200
Vertical condensation collector L. 200 code 8092803
IMPORTANT:
– Each additional 90° curve installed reduces the available length by 1.0 metres.
– Each additional 45° curve installed reduces the available length by 0.80 metres.
– The insertion of the condensation collector (8) is obligatory in C32 discharge type.
– The insertion of the condensation collector (8) is obligatory in C42 discharge type
when the stretch "y” is longer than 1.3 metres.
Fig. 6
71
wall with rounded glass wool 30 mm
thick and with a density of 50 kg/m2.
The maximum total length, which is the
sum of lengths of the aspiration and
discharge pipes, is determined by the
loss of charge of the single accessories
inserted and must not result as more
than 9.0 mm H2O in version “25 BF” and
9.5 mm H2O in version “30 BF”.
For the loss of charge of the accessories,
refer to Table 1 and to the example given in
fig. 7.
2.8.1
Air/combustion products divider
(fig. 8 - fig. 8/a)
The air/combustion products divider cod.
8093020 (fig. 8) is supplied with the aspiration diaphragm that must be engaged,
depending on t he maximum head loss
accepted in both ducts, as indicated in fig.
8/a.
2.8.2
TABLE 1
Accessories ø 80
Load loss (mmH2O)
25 BF
90° elbow MF
45° elbow MF
Extension L. 1000 (horizontal)
Extension L. 1000 (vertical)
Wall terminal
T-shaped condensation collector
Roof exit terminal*
Outlet
Intake
Outlet
0.35
0.30
0.20
0.20
0.15
--1.60
0.40
0.35
0.30
0.10
0.50
0.80
0.10
0.45
0.40
0.25
0.25
0.20
--2.00
0.50
0.45
0.35
0.15
0.80
1.00
0.20
* The loss of the roof exit terminal in aspiration concludes the collector code 8091400
Calculation example of the head loss of a “25 BF” vers. boiler (installation allowed as the sum
of the head losses of the accessories used is less than 9.0 mmH2O):
Intake
1.40
–
0.70
–
0.15
7 meter horizontal pipe ø 80 x 0.20
7 meter horizontal pipe ø 80 x 0.30
No. 2 90° elbows ø 80 x 0.35
No. 2 90° elbows ø 80 x 0.40
No. 1 wall terminal ø 80
Total head loss
Outlet systems (fig. 9)
30 BF
Intake
2.25
Outlet
–
2.10
–
0.80
0.50
+
3.40 = 5.65 mmH2O
With this total head loss, remove the segments from No. 1 to No. 6 from diaphragm in the intake pipe.
The diagrams in fig. 9 illustrate a number
of examples of different types of separate
outlets.
Fig. 7
ø 80
120
ø 80
L
K
3
4
125
125
190
190
2
1
KEY
1 Divider with vent
2 Inlet air diaphragm
3 Air intake bend
4 Elbow product discharge
K mm
L mm
25 BF
203
400
30 BF
221
450
Fig. 8
72
No. segments
to remove
none
No. 1
No. 1 e 2
from No. 1 to 3
from No. 1 to 4
from No. 1 to 5
from No. 1 to 6
from No. 1 to 7
from No. 1 to 8
from No. 1 to 9
from No. 1 to 10
without diaphragm
ES
Total load loss mm H2O
30 BF
25 BF
0 ÷ 0.8
0 ÷ 2.0
0.8 ÷ 1.5
2.0 ÷ 3.0
1.5 ÷ 2.4
3.0 ÷ 4.0
2.4 ÷ 3.2
3.2 ÷ 4.0
4.0 ÷ 5.0
4.0 ÷ 4.8
4.8 ÷ 5.6
5.0 ÷ 6.0
5.6 ÷ 6.5
6.0 ÷ 7.0
6.5 ÷ 7.3
7.3 ÷ 7.8
7.0 ÷ 8.0
7.8 ÷ 8.4
8.4 ÷ 9.5
8.0 ÷ 9.0
PT
ENG
Fig. 8/a
2.9
FORCED EXHAUST
TYPE B22P-B52P (fig. 10)
– Insulate the exhaust pipe and install a
condensation collection system at the
base of the vertical pipe.
– If the pipe passes through combustible
walls, insulate the section of the flue pipe
Comply with the following requirements
during installation:
passing through the wall with a 30 mm
thick fibreglass pipe covering with a density of 50 kg/m3.
In “25-30 BF” models this type of exhaust
CONFIGURATION C62: discharge and aspiration is by means of pipes available on sale and certified separately (the pressure loss in the
ducts must be calculated according to the Standard UNI EN 13384)
11
10
9
11
3
2
1
10
7
3
C42
8
2
1
3
Air/combustion product divider code 8093020
90° elbow MF (n° 6) code 8077410
90° elbow MF with intake code 8077407
Isolated 90° elbows MF code 8077408
Extension L. 1000 (n° 6) code 8077309
Insulated extension L. 1000 code 8077306
Extension L. 500 (n° 6) code 8077308
Extension L. 135 with intake code 8077304
Outlet terminal code 8089501
Int.-est. ring kit code 8091500
Intake terminal code 8089500
45° elbow MF (n° 6) code 8077411
Condensation outlet L. 135 code 8092800
Doubler fitting code 8091400
Tile with articulated joint code 8091300
Roof outlet terminal L. 1390 code 8091201
Tee condensation outlet code 8093300
3
2
8
C82
B22
12
6
C52
B52
3
3
1
3
1
C32
KEY
1
2a
2b
2c
3a
3b
3c
3d
4
5
6
7
8
9
10
11
12
3
3
6
5
4
max 0,5 m
2
max 0,5 m
3
3
1
IMPORTANT: In type C52 the outlet and inlet flues must not come out on opposite walls.
C12
B52
6
Fig. 9
73
pipe is installed using the special kit, code
8093020. For kit assembly instructions,
refer to point 2.8.1.
Protect the intake with the optional accessory, code 8089501 (fig. 10). The air/combustion product divider code 8093020 is
supplied with aspiration diaphragm that
must be engaged, depending on the maximum head loss allowed, as indicated in fig.
8/a.
Maximum flow resistance must be no
more than 9.0 mm H2O in vers. “25 BF” 9.5 mm H2O in vers. “30 BF”.
As the maximum pipe length is determined
by adding up the flow resistance of the
various individual accessories installed,
refer to Table 1 for calculation.
2.10
Cod. 8089501
POSITIONING OF OUTLET
TERMINALS (fig. 11)
The outlet terminals for forced draught
systems may be located on the outer walls
of the building Table 2 shows approximate,
non-binding minimum distances to be met
for a building of the type shown in fig. 11.
Fig. 10
TABLE 2
Siting of terminal
ABC DE F GHI L MNO-
Appliances from 7 to 35 kW
(distances in mm)
below openable window
below ventilation opening
below eaves
below balcony (1)
from adjacent window
from adjacent ventilation opening
from horizontal or vertical soil or drain pipes (2)
from corner of building
from recess in building
from ground level or other treadable surface
between two terminals set vertically
between two terminals set horizontally
from a surface facing without
openings or terminals
P - as above but with openings and terminals
74
600
600
300
300
400
600
300
300
300
2500
1500
1000
2000
3000
1) Terminals below a practicable balcony must be located in such a
way that the total path of the smoke from its outlet point from
the terminal to its outlet point from the external perimeter of the
balcony, including the height of possible railings, is not less than
2000 mm.
2) When siting terminals, where materials that may be subject
to the action of the combustion products are present in the
vicinity, e.g., eaves, gutters and downspouts painted or made
of plastic material, projecting timberwork, etc., distances of
not less than 1500 mm must be adopted, unless adequate
shielding is provided to guard these materials.
Fig. 11
2.11
ELECTRICAL WIRING
If you must replace the electric power
cable supplied with the boiler, order it exclusively from Sime.
The power supply must be single-phase
230V - 50 Hz through a main switch protected by a fuse with a distance of at least
3 mm between contacts.
NOTE: The boiler must be connected with
an efficient grounding system. SIME shall
not be held liable for injury or damage
resulting from failure to ground the boiler.
ATTENTION: Before every intervention on
the boiler, cut off the electricity supply by
means of the main switch of the system,
since even if the boiler is "OFF", the electrical panel remains connected to the
electricity.
2.11.1
Chronothermostat
connection
Remove the boiler casing, tilt the control
panel and connect the chronothermostat
to the 6 pole terminal board as indicated in
the boiler electrical diagram (see paragraph 2.12) after having removed the existing bridge.
The chronothermostat to be used must be
of a class conforming to the standard EN
60730.1 (clean electrical contact).
2.11.2 Remote control CR 63
connection (optionals)
The boiler is designed for connection to a
remote control unit CR 63 code 8092219
coupled to an optional expansion kit code
8092240.
The remote control unit allows for complete
remote control of the boiler, except release
of the boiler.
Whenn the connection has been made the
boiler display will show the following message: Cr.
For installation and use of the remote control, follow the instructions in the package.
ES
PT
ENG
2.11.3 External sensor connection
(optional)
The boiler is designed for connection to an
external temperature sensor, supplied on
request (code 8094101), which can automatically regulate the temperature value of
the boiler output according to the external
temperature.
For installation, follow the instruction in the
package. It is possible to make corrections
to the values read by the drill acting on the
PAR 4.
2.11.4 Use with different
electronic systems
Some examples are given below of boiler
systems combined with different electronic
systems. The electrical connections to the
boiler refer to the wording on the diagrams
(figs. 13-13/a). The zone valve control
starts at every demand for heating of the
remote control.
1
BASIC SYSTEM
SYSTEM WITH A DIRECT ZONE AND ROOM THERMOSTAT, OR WITH
A REMOTE CONTROL (Code 8092219), KIT EXPANSION REMOTE
CONTROL (Code 8092240) AND EXTERNAL SENSOR (Code
8094101)
Description of the letters indicating the
components shown on the system diagrams from 1 to 6:
M
R
CR
SE
TA 1-2
VZ 1-2
RL 1-2
Sl
P 1-2
IP
EXP
VM
TSB
System output
System return
Remote control CR 63
External temperature sensor
Zone room thermostat
Zone valve
Zone relay
Hydraulic separator
Zone pump
Floor system
Expansion card
(code 6301430)
Thermostatic mixer valve
Safety thermostat low
temperature
CR
SE
EXP
TA
M
R
75
2
BASIC SYSTEM
MULTI-ZONE SYSTEM WITH VALVE, ROOM THERMOSTAT AND EXTERNAL SENSOR (Code 8094101)
SE
TA
M
TA
R
VZ1
VZ
3
TA2
TA1
VZ2
BASIC SYSTEM
MULTI-ZONE SYSTEM WITH PUMP, ROOM THERMOSTATS AND EXTERNAL SENSOR (Code 8094101)
TA
TA
RL
SE
M
TA2
TA1
RL2
RL1
R
P1
P
P2
SI
4
BASIC SYSTEM
MULTI-ZONE SYSTEM WITH VALVE, ROOM THERMOSTATS, REMOTE CONTROL (Code 8092219), KIT EXPANSION REMOTE CONTROL (Code 8092240) AND EXTERNAL SENSOR (Code 8094101)
PARAMETERS SETTINGS
CR
TA
SE
EXP
M
TA2
R
VZ
76
TA1
VZ1
VZ2
Set the opening time of the VZ zone
valve:
PAR 17 = SYSTEM PUMP
ACTIVATION DELAY
5
ES
BASIC SYSTEM
MULTI-ZONE SYSTEM WITH PUMPS, ROOM THERMOSTATS, REMOTE CONTROL (Code 8092219), KIT EXPANSION REMOTE
CONTROL (Code 8092240) AND EXTERNAL SENSOR (Code 8094101)
PT
CR
TA
SE
M
TA2
TA1
RL2
RL1
EXP
NOTE:
The heating is set from the
remote control for the first
zone and from the boiler panel
for the other zones.
If there is a request for heat at
the same time, the boiler is
activated at the highest temperature setting.
R
P
P2
P1
ENG
SI
6
MIXER VALVE SYSTEM
SYSTEM WITH ONE DIRECTED ZONE, AND ONE MIXER ZONE
TA2
CR
TSB
RL2
TA
SE
EXP
M
R
P2
VM
SI
P1
IP
77
2.12
BOILER ELECTRICAL DIAGRAM (fig. 13 - fig. 13/a)
Modello “25 OF”
PA (24 VDC)
EXP
(24 VDC)
Cod. 6301440
TA
(24 VDC)
SE (3,3 VDC)
S.AUX
(3,3 VDC)
FLM
(12 VDC)
TF
(24 VDC)
SM1/SM2
(3,3 VDC)
KEY
F
TRA
PI
EAR
EV1-2
TF
M
SM1/SM2
FLM
VD
PA
TA
Fuse (1.6 AT)
Ignition transformer
System pump
Ignition/detection electrode
Gas valve coil
Smoke thermostat
Modulator
Heating sensor
D.H.W. flow meter
Deviator valve
Water pressure valve
Environment thermostat
SE
S.AUX
EXP
M (17 VDC)
External sensor (optional)
Auxiliary sensor
Expansion card remote control (optional)
NOTE: Connect TA to the clamps 5-6 after having
removed the bridge.
CONNECTOR SPARE PART CODES:
CN4
code 6316298
CN5
code 6316253
CN6
code 6316255
CN7
code 6316278
Fig. 13
78
ES
“25-30 BF” models
PT
ENG
PA (24 VDC)
EXP (24 VDC)
Cod. 6301440
TA
(24 VDC)
FLM (12 VDC)
SE (3,3 VDC)
S.AUX
(3,3 VDC)
M (17 VDC)
PF (24 VDC)
SM1/SM2
(3,3 VDC)
KEY
F
TRA
PI
V
EAR
EV1-2
PF
M
SM1/SM2
FLM
VD
PA
TA
Fuse (1.6 AT)
Ignition transformer
System pump
Fan
Ignition/detection electrode
Gas valve coil
Smoke thermostat
Modulator
Heating sensor
D.H.W. flow meter
Deviator valve
Water pressure valve
Environment thermostat
SE
S.AUX
EXP
External sensor (optional)
Auxiliary sensor
Expansion card remote control (optional)
NOTE: Connect TA to the clamps 5-6 after having
removed the bridge.
CONNECTOR SPARE PART CODES:
CN4
code 6316277
CN5
code 6316253
CN6
code 6316252
CN7
code 6316278
Fig. 13/a
79
3
CHARACTERISTICS
3.1
CONTROL PANEL (fig. 14)
1
2
3
4
1 - DESCRIPTION OF DISPLAY ICONS
SUMMER MODE ICON
WINTER MODE ICON
D.H.W. MODE ICON
HEATING MODE ICON
FUNCTIONING BURNER ICON
BLOCK DUE TO NO
IGNITION/FLAME DETECTION
NECESSITY OF RESET
2 - DESCRIPTION OF CONTROLS
OPERATING MODE/RESET
By pressing the key in succession, pass to the summer and winter function (stand-by function if permane on the key more than two second).
RESET is only available if a resettable anomaly is
signalled
D.H.W. SET
Press the key to display the D.H.W. temperature
value set
HEATING SET
Press the key to display the heating temperature
value set (value not realtive to the remote control)
DECREASE
Pressing this key decreases the value set
INCREASE
Pressing this key increases the value set
MAIN DIGITS
3 - LED GREEN
ON = Indicates the presence of electrical voltage.
It switches of momentarily every time the keys are pressed.
It can be disabled by setting PAR 3 = 0.
4 - LED RED
OFF = Regular functioning.
ON = Boiler anomaly signalled.
Flashing when the control panel buttons are pressed inside the
PARAMETERS SECTION.
Fig. 14
80
3.2
ACCESS TO INSTALLER'S
PARAMETERS
For access to the installer's parameters,
press simultaneously the keys of boiler
panel (
and
) for 5 seconds.
The red LED flashes and the display shows:
FAST CONFIGURATION
PAR DESCRIPTION
PARAMETERS INSTALLER
01 Combustion configuration
02 Hydraulic configuration
03 Disabling of voltage presence LED
04 Correction of external probe values
05 Timer block of the keys
The parameters can be scrolled with
or .
To enter the parameter press
or
The value set flashes, the display shows:
.
Proceed as follows to change the set value:
- set the new value using or
.
- confirm the set value using
or
.
Press
to exit the parameters section.
The display is shown automatically after 5
minutes.
The parameters section contains the
alarms log, info and meters (display only).
3.2.1
Replacing the board or
RESETTING parameters
If the electronic board is replaced or reset,
it is necessary to configure PAR 01 and
PAR 02 by associating the following values
to each type of boiler to be able to restart
the boiler:
BOILER
BF
OF
GAS
MODELS
PAR 1
METHANE
(G20)
LPG
(G30/G31)
METHANE
(G20)
LPG
(G30/G31)
25
30
25
30
25
30
25
30
01
02
03
04
05
06
07
08
D.H.W. - HEATING
PAR DESCRIPTION
10
11
Boiler antifreeze
External sensor antifreeze
12
13
14
15
16
17
18
19
Climatic curve setting
Minimum temperature heating
Maximum temperature heating
Maximum power heating
Post-circulation time
Pump heating activation delay
Re-ignition delay
Modulation D.H.W. flowmeter
29
Anti-legionella (only D.H.W. tank)
PARAMETERS RE-SET
PAR DESCRIPTION
RANGE
-- = ND
1 ... 8
-- = ND
1 ... 22
0 = Disabled
1 = Enabled
-5 ... 05
-- = Disabled
1 ... 99
=
“--”
=
=
01
°C
Min.
1
1
00
15
UNIT OF
INC/DEC
MEASUREMENT UNIT
0 ... 10
°C
1
-- = Disabled
°C
1
- 9 ... 05
03 ... 40
=
1
40 ... PAR 14
°C
1
PAR 13 ... 80
°C
1
30 ... 99
%
1
0 ... 99
10 sec.
1
0 ... 99
10 sec.
1
0 ... 10
Min.
1
-- = Disabled
=
=
1 = Enabled
-- = Disabled
°C
1
50 ... 80
DEFAULT
SETTING
03
-2
RANGE
UNIT OF
INC/DEC
MEASUREMENT UNIT
=
=
DEFAULT
SETTING
=
UNIT OF
INC/DEC
MEASUREMENT UNIT
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
DEFAULT
SETTING
=
=
=
=
=
=
=
=
=
=
RANGE
UNIT OF
INC/DEC
MEASUREMENT UNIT
-9 ... 99
°C
1
-9 ... 99
°C
1
-9 ... 99
°C
1
-9 ... 99
°C
1
-9 ... 99
°C
1
PAR 13 ... PAR 14
°C
1
00 ... 99
%
1
00 ... 17
10 mA
1
00 ... 99
l/min
1
DEFAULT
SETTING
=
=
=
=
=
=
=
=
=
UNIT OF
INC/DEC DEFAULT
MEASUREMENT UNIT
SETTING
h x 100 0,1 from 0,0 to 9,9 00
1 from 10 to 99
x 1000 0,1 from 0,0 to 9,9 00
1 from 10 to 99
x1
1
00
x1
1
00
x1
1
00
PT
ENG
20
40
80
99
03
01
03
01
“--”
49 * Reset default parameters
-- , 1
(PAR 01 - PAR 02 equal “---”)
* If the current setting is difficult to understand or anomalous behaviour or if it is difficult to understand
the boiler, it is advised to restore the initial parameter values by setting PAR 49 = 1 and PAR 1 and
PAR 2 as specified in point 3.2.1.
ALARMS (visualization)
PAR DESCRIPTION
RANGE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
=
=
=
=
=
=
=
=
=
=
Last code anomaly appearance
Code anomaly previously appearance
Code anomaly previously appearance
Code anomaly previously appearance
Code anomaly previously appearance
Code anomaly previously appearance
Code anomaly previously appearance
Code anomaly previously appearance
Code anomaly previously appearance
Code anomaly previously appearance
INFO (visualization)
PAR DESCRIPTION
PAR 2
OF/BF
09
OF/BF
combined with sun-panel system
10
OF/BF
with automatic filling
13
i0
i1
i2
i3
i4
i5
i6
i7
i8
OF/BF
14
COUNTERS (visualization)
PAR DESCRIPTION
RANGE
c0
Number hours of operation of the burner
00 ... 99
c1
Number of ignitions of the burner
00 ... 99
c2
c3
c4
Number total of the anomalies
Number approached the parameters installator
Number approached the parameters OEM
00 ... 99
00 ... 99
00 ... 99
NOTE: the boiler panel has a label with
the values that have to be set for PAR 01
and PAR 02 (fig. 21).
DEFAULT
SETTING
“--”
=
RANGE
BOILER
combined with sun-panel system
and with automatic filling
ES
UNIT OF
INC/DEC
MEASUREMENT UNIT
=
=
External sensor temperature
C.H. 1 sensor temperature
C.H. 2 sensor temperature
D.H.W. sensor temperature
Auxiliary sensor AUX temperature
Set of effective heating temperature
Level survey flame
Current to the modulator
Flow rate D.H.W. flow meter
81
3.4
EXTERNAL SENSOR (fig. 15)
If there is an external sensor, the heating
settings SET can be taken from the climatic
curves according to the external temperature and, in any case, limited to with the
range values described in point 3.2 (parameters PAR 13 and PAR 14).
The climatic curve to be set can be selected
from a value of 3 and 40 (at step 1).
Increasing the steepness of the curves of
fig. 15 will increase the output temperature
as the external temperature decreases.
3.5
CARD FUNCTIONING
The electronic card has the following functions:
– Antifreeze protection of the heating circuit.
– Ignition and flame detection system.
– Control panel setting for the power and
the gas for boiler functioning.
– Anti-block for the pump which is fed for
a few seconds after 48 hours of inactivity.
– Chimney sweep function which can be
activated from the control panel.
– Temperature which can be shifted with
the external sensor connected.
It can be set from the control panel.
– Automatic regulation of the ignition
power
and
maximum
heating.
Adjustments are managed automatically by the electronic card to guarantee maximum flexibility in use of the
system.
– Interface with the following electronic
systems: remote control CR 73 o CR
63, with coupling kit card expansion
code 8092240.
3.6
TEMPERATURE
DETECTION SENSOR
Table 3 gives the values of the electrical
element (Ω) obtained on the heating sensor
according to the variations in temperature.
When the heating sensor (SM1/SM2) is
interrupted, the boiler will not function
for both services.
TABLE 3
Temperature (°C)
20
30
40
50
60
70
80
3.7
Resistance (Ω)
12.090
8.313
5.828
4.161
3.021
2.229
1.669
ELECTRONIC IGNITION
Ignition and flame detection is controlled by
a single electrode on the burner which guarantees reaction in the case of accidental
82
ATTENTION: curves are calculated at an ambient temperature of
20°C. Using the
key on the control panel, the user can change
the set ambient by ± 5°C for which the curve is calculated.
Fig. 15
extinction or lack of gas within one second.
3.7.1
burner will immediately switch off. When
voltage returns, the boiler will automatically
start up again.
Functioning cycle
Burner ignition occurs within max. 10
seconds after the opening of the gas valve.
Ignition failure with consequent activation of
block can be due to:
– Lack of gas
The ignition electrode persists in discharging for max. 10 seconds. If the burner
does not ignite, the anomaly is signalled.
This can happen the first time the boiler
is switched on after a long period of inactivity due to the presence of air in the gas
pipes.
It can be caused by a closed gas tap or by
a broken valve coil (the interruption does
not allow for opening).
– The electrode does not discharge.
In the boiler, only the opening of the gas
to the burner can be detected. After 10
seconds the anomaly is signalled.
It can be caused by an interruption in the
electrode wire or if it is incorrectly anchored to the connection points.
Or the electrode may be earthed or
strongly worn: it must be replaced.
Or the electronic card may be defective.
In the case of a sudden lack of voltage, the
3.8
FUMES THERMOSTAT
“25 OF”
This is a safety measure against the return
of the fumes into the environment due to
an inefficient or partially blocked chimney
(7 fig. 3).
It reacts by blocking the functioning of the
gas valve when the fumes are continually
forced back into the environment, in a
quantity that can be dangerous. If the boiler
repeatedly stops, it will be necessary to
carefully check the chimney, and to carry
out all modifications and take all measures
necessary to restore it to an ef ficient
working state. After every intervention carried outon the device, check correct functioning. In the case of replacement, use only
original spare parts.
3.9
FUMES PRESSURE SWITCH
“25-30 BF” (fig. 16)
The pressure switch is calibrated by the
manufacturer at the following values:
0.62 - 0.72 H2O for vers. “25 BF”
0.45 - 0.55 H2O for vers. “30 BF”,
which can guarantee boiler functioning also
ES
PT
SEALED
CHAMBER
CAMERA
STAGNA
ENG
VENTILATORE
FAN
(+)
(--)
PRESSURE
SWITCH
PRESSOSTATO
3.10
HEAD AVAILABLE
TO SYSTEM (fig. 17 - fig. 17/a)
Residual head for the heating system is
shown as a function of rate of flow in the
graph in fig. 17.
To obtain the maximum head available to
the system, turn off the by-pass by turning
the union to the vertical position (fig. 17/a).
600
RESIDUAL HEAD
(mbar)
PREVALENZA
RESIDUA
(mbar)
with aspiration and discharge pipes of the
maximum length allowed.
The value of the signal to the pressure switch is measured by a differential pressure
gauge connected as indicated in fig. 16.
400
300
200
100
NOTE: The expansion vessel supplied with
the boiler is suitable for heating systems
with a maximum water capacity of 80
litres. In excess of such capacity, arrange
for an additional expansion vessel.
3.11
By-pass on
By-pass
inserito
By-pass off
By-pass
escluso
500
0
200
400
600
800 1000 1200 1400 1600
PORTATA
(l/h)
FLOW
RATE (l/h)
WATER PRESSURE
VALVE (fig. 17/a)
The water pressure valve (C fig. 17/a)
intervenes, blocking burner functioning, if it
detects that there is insufficient pressure
in the boiler (< 0,6 bar).
To restore burner functioning, to bring back
the pressure of the boiler at values comprise between 1 - 1,2 bar.
Format DGT
Fig. 16
Fig. 17
LEGENDA
A By-pass on
B By-pass off
C Water pressure valve
C
B
A
REFERENCE
POSITION
BY-PASS
RIFERIMENTO
POSIZIONE
BY-PASS
Fig. 17/a
83
4
USE AND MAINTENANCE
4.1
GAS VALVE (fig. 18)
The boilers are equipped standard with the
SIT 845 SIGMA gas valve (fig. 18).
The gas valve is set at two pressure values:
maximum and minimum.
According to the type of gas burnt, these
correspond to the values given in Table 4.
The gas pressures at the maximum and
minimum values, are factory set. Consequently they must not be altered.
Only when you switch the appliance from
one type of gas suppl y (me t hane) t o
another (butane or propane), it is permitted to alter the operating pressure.
4.2
4
1
2
GAS CONVERSION (fig. 19)
This operation must be performed by
authorised personnel using original Sime
components.
To convert from natural gas to LPG or vice
versa, perform the following operations (fig.
19):
– Close the gas cock.
– Disassemble the burner manifold (3).
– Replace the main nozzles (6) supplied in
a kit, inserting the copper washer (4).
Use a ø 7 spanner to perform this operation.
– Configure the new fuel as indicated in
point 4.2.1
– For calibrating the maximum and minimum gas pressure values, see point
4.2.2.
– After have ultimated the conversion of
the boiler, please stick onto the casing
panel the plate showing the relevant feeding gas which is included into the kit.
NOTE: When reassembling components
which you have removed, replace gas
seals; test all gas connections after
assembly using soapy water or a product
made specifically for the purpose, being
sure not to use open flame.
4.2.1
5
3
KEY
6
1 Modulator
2 EV1-EV2 coils
3 Pressure inlet upstream
4 Pressure inlet downstream
5 VENT pressure
TABLE 4
Model
Burner max pressure mbar
G20 (*) G30
25 OF
25 BF
30 BF
9,1
13,5
13,2
27,7
27,9
26,8
G31
35,7
35,9
34,8
Modulator current mA
G20 (*) G30
130
130
130
165
165
165
G31
165
165
165
Burner min pressure mbar
G20 (*) G30
1,6
1,9
1,9
4,6
3,7
4,1
G31
4,6
3,7
4,1
Modulator current mA
G20 (*) G30
0
0
0
0
0
0
G31
0
0
0
(*) Max. burner pressure is guaranteed only when the supply pressure exceeds the max. burner pressure by at least 3 mbar.
Fig. 18
New fuel configuration
Access the parameters section by pressing the control panel keys (
and
) at
the same time for 5 seconds.
The red LED flashes and the display shows:
Scroll the parameters using
or
.
To enter the fuel configuration paramater
PAR 01, use
or
.
The set value flashes and if the boiler in
question is a 30 BF with methane, the
display shows:
KEY
1 Swivel connection 1/2”
2 Locknut 1/2”
3 Burner manifold
4 Washer ø 6.1
5 Burners
6 Nozzle M6
7 Screw
WARNING: To ensure a perfect
seal, always use the washer (4)
supplied in the kit when replacing
nozzles, even in burner units for
which it is not specified.
Fig. 19
84
For the 30 BF boiler to function with LPG,
press
until 04 appears.
Confirm this value using
or
.
Exit the parameters section by pressing .
The table below gives the values to set
when the supply gas is changed:
BOILER
BF
OF
4.2.2
GAS
MODELS
PAR 1
METHANE
(G20)
LPG
(G30/G31)
METHANE
(G20)
LPG
(G30/G31)
25
30
25
30
25
30
25
30
01
02
03
04
05
06
07
08
Adjusting valve pressure (fig. 20)
Set maximum and minimum pressure on
gas valves as follows (fig. 20):
1
2
– Connect the column or a manometer to
the intake downstream of the gas valve.
In “25-30 BF” models, disconnect the
valve VENT pressure test point tube (5
fig. 18).
– Remove the cap (1) from the modulator.
– Press the keys (
and
) at the same
time for a few seconds and completely
open the hot sanitary water faucet.
– Press the key
ES
– Lock t he nut (3) in place, tur n t he
screw/nut (2) to the minimum pressure indicated in Table 4.
– Press the keys (
and
) while keeping the hot sanitary water running all
the time, and check that the maximum
and minimum pressures correspond to
the set values; if necessary correct the
regulation.
PT
ENG
(Hi).
– Remember that rotating clockwise will
increase pressure while rotating anticlockwise will diminish it.
– Adjust maximum pressure using the nut
(3) with a wrench to the maximum pressure value indicated in Table 4.
– Adjust the maximum pressure before
adjusting the minimum.
– Press the key
water tap is on, with the water running.
(Lo) while the sanitary
– Press the key
tion.
again to quit the func-
– Put the pipe back on the valve VENT
pressure test point.
– Remove the manometer, remembering
to tighten the screw for closing the pressure test point.
– Put the plastic cap (1) back on the modulator and seal with a drop of coloured
sealant if necessary.
3
KEY
1 Plastic tap
2 Minimum pressure adjusting nut
3 Maximum pressure adjusting nut
Fig. 20
85
4.3
DISMANTLING THE CASING
(fig. 21)
The casing may be removed completely to
facilitate boiler maintenance, as shown in
fig. 21. Turn the panel control forward for
access to the internal components of the
boiler.
4.4
MAINTENANCE
To guarantee functioning and efficiency of
the appliance, in respect of the legal provisions in force, it must be regularly
checked; the frequency of the checks
depends on the type of appliance and the
installation and usage conditions.
In any case, it should be inspected at
least once a year by a qualified technician.
Carry out the cleaning of the generator in
the following way:
– Turn the main switch off to stop electric
power reaching the boiler and close the
gas feed cock.
– Remove the outer casing and the gas
burner manifold unit. To clean the burner,
blow in a jet of air, so as to remove any
dust particles that may have accumulated.
– Clean the heat exchanger, removing any
dust or residue from combustion. When
cleaning the heat exchanger or the burners, chemical products or steel brushes MUST NOT BE USED.
Make sure that the tops of the burners
with the holes are free from encrustations.
– Reassemble the items removed from
the boiler, making sure to follow the correct sequence.
– Check operation of the main burner.
– After assembly of all the gas connec-
tions, these must be tested for soundness, using soapy water or appropriate
products. DO NOT USE NAKED FLAMES.
– Do not use calcium chloride to treat the
plastic component during generator
maintenance.
4.4.1
Chimney sweep function
To check boiler combustion, press at the
same time the installer's key (
e
) for
a few seconds.
The chimney sweep function will switch on
and will continue for 15 minutes.
During the 15 minutes functioning of chimney sweep function, pressing the keys (
and
) take the boiler respective at maximum (Hi) and at minimum (Lo) power.
From that moment, the boiler will start
working in heating mode at maximum
power, with cut off at 80°C and re-ignition
1
Codice/Code 8109200
Modello/Model FORMAT DGT 25 BF
Matricola/Serial n. 9999999999
PAR 1 = 01 (G20)/ 03 (G30 -G31)
PAR 2 = 09
4x
2
Fig. 21
86
at 70°C.
Before activating the chimney sweep function make sure that the radiator valves or
eventual zone valves are open.
The test can also be carried out with the
boiler working in D.H.W. mode.
For this, after activating the chimney sweep
function, open one or more hot water faucets.
Under these conditions, the boiler will function at maximum power with the D.H.W.
kept at between 60°C and 50°C.
During the test, the hot water faucets
must remain open.
For exit to the chimney sweep function
press the key
of the control panel.
The chimney sweep function will automatically switch off after 15 minutes from
the activation.
4.5
– LOW WATER PRESSURE ANOMALY
ALARM 02 (fig. 24/a)
If the pressure detected by the water
pressure valve is lower than 0.5 bar, the
boiler stops and the display shows the
alarm “AL 02”.
Bring the pressure back to normal by
means by acting on the telescopic loading knob.
Lower the knob and turn it anti-clockwise
to open until the pressure indicated on
the hydrometer reaches 1 - 1.2 bar.
WHEN FILLING HAS BEEN COMPLETED,
CLOSE THE KNOB BY TURNING IT
CLOCKWISE.
If the load procedure has to be repeated several times, it is advisable to
check that the seal of the heating circuit is intact (check that there are no
leaks).
FUNCTIONING ANOMALIES
When there is a functioning anomaly, an
alarm appears on the display and switch
on the red led.
OPEN
Apre
Descriptions of the anomalies with relative
alarms and solutions are given below:
– FUMES DISCHARGE ANOMALY
ALARM 01 (fig. 24)
OPEN BOILER (OF):
The display shows “AL 01”.
The fumes thermostat has intervened.
The boiler stops for an enforced period
of 10 minutes.
At the end of this period, the boiler reattempts ignition.
If the anomaly is repeated three times in
24 hours, the boiler blocks.
Press the key
of the controls to
start up the boiler again.
SEALED BOILER (BF):
The fumes thermostat has intervened. If
the condition causing the problem persists for two minutes, the boiler stops for
an enforced period of thirty minutes.
At the end of this period, the boiler reattempts ignition.
PT
ENG
Fig. 24/b
– SAFET Y THERMOSTAT ANOMALY
ALARM 07 (fig. 24/c)
If the C.H. sensor (SM1/SM2) exceeds
the 100°C the boiler does not ignite the
burner, the display show AL 07 and
remains ignited the green led. If this condition restored more one minute, the
boiler will stop, the display show always
the anomaly AL 07 and switch on the
red led.
Press the key
of the controls to start
up the boiler again.
2
bar
1
0
3
Fig. 24/c
4
Fig. 24/a
– D.H.W. SENSOR ANOMALY ALARM 04
The D.H.W. probe is not envisioned in
these boiler models; if the display shows
the AL 04 anomaly, check PAR 2.
– HEATING SENSOR ANOMALY ALARM
05
If one or both sensing elements of heating sensor (SM1/SM2) are open or
short circuited, the boiler will not function and the display will show the alarm
“AL 05”.
Fig. 24
ES
– FLAME BLOCK ALARM 06 (fig. 24/b)
If the flame control has not detected the
presence of the flame after a complete
ignition sequence, or for any other reason the card cannot “see” the flame, the
boiler will stop and the display will show
the alarm “AL 06”.
Press the key
of the controls to start
up the boiler again.
– PARASITE FLAME ANOMALY ALARM
08
If the flame control section recognises
the presence of flames also in phases
when they should not be present, it
means there is a breakdown in the flame
detection circuit; the boiler will stop and
the display will show anomaly “AL 08”.
– AUXILIARY SENSOR ANOMALY
ALARM 10
ONLY FOR BOILER WITH SOLAR PLANT
COUPLING (PAR 2 = 10 or 14):
D.H.W. inlet probe anomaly. When the
probe is open or short circuited the boiler looses the solar function and the
display shows anomaly AL 10.
– MODULATOR ANOMALY ALARM 11
The modulator is not connected.
When during functioning the boiler
detects zero current to the modulator,
the display will show anomaly “AL 11”.
The boiler will function at minimum
power and the anomaly will be de-acti87
vated when the modulator is reconnected or when the burner stops working.
– CONFIGURATION ANOMALY ALARM
12
Anomaly in the SEALED/OPEN configuration. There may be a conflict between
the values set by the installer for PAR 1
and the self-detection carried out by the
card causes the activation of the alarm:
the boiler will not function and the display
will show anomaly “AL 12”.
Reset PAR 1 to de-activate the alarm or
check the pressure switch/combustion
product thermostat and relative connection.
– HEATING PROBE POSITIONING
ANOMALY SM1/SM2 “AL 16”
(fig. 24/d)
If the probe does not detect a temperature increase after burner ignition, the
burner switches off after 10 seconds,
the display shows anomaly AL 16 eand
the4 green LED stays on.
If the anomaly occurs three times within
24h lthe boiler blocks, the display continues to show anomaly AL 16 and the red
LED switches on.
Press
on the control panel to re-start
the boiler.
Fig. 24/d
– SENSOR ALIGNMENT ANOMALY “AL
17”
When the two sensitive elements of the
heating probe (SM1/SM2) dif fer to
each other by more than 16°C the boiler
does not function and the display shows
anomaly AL 17.
Reaplace t he heating pr obe
(SM1/SM2) to restore functioning.
88
USER INSTRUCTIONS
ES
WARNINGS
– In case of fault and/or incorrect equipment operation, deactivate it, without making any repairs or taking any direct action.
Apply only to qualified technical personnel.
– Boiler installation and any other assistance and/or maintenance activity must be carried out by qualified personnel persuant to Standard CEI 64-8. Under no circumstances, the devices sealed by the manufacturer can be tampered with.
– It is absolutely prohibited to block the intake grilles and the aeration opening of the room where the equipment is installed.
– The manufacturer shall not be held liable for any damage caused by improper use of the appliance.
– This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack
of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person
responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
PT
ENG
LIGHTING AND OPERATION
BOILER IGNITION (fig. 25)
The first ignition of the boiler must be carried out by qualified technical personnel.
Successively, if it is necessary to start up
the boiler again, adhere strictly to the following instructions: open the gas tap to
allow the flow of the fuel and move the main
switch of the system to “ON”. After a stop,
wait for about 30 seconds before restoring
functioning conditions do that the boiler can
perform the control sequence.
If the green led is on, this indicates the presence of voltage.
switches off.
To set one of the operating modes, press
any of the keys for more than two seconds
(the display will indicate one to four segments progressively before unlocking the
controls).
Summer
Press the key
of the controls to activate the summer mode functioning (only the
production D.H.W.). The display will be as
shown in the figure.
Winter
Press the key
of the controls to activate the winter mode functioning (heating and
D.H.W.). The display will be as shown in the
figure.
Keys lock
If the device is not used, the keys will be
locked 15 minutes after the last setting was
made (PAR 5 by default) and the display light
REGULATION OF THE WATER TEMPERATURE FOR HEATING (fig. 26)
To set the temperature of the water for
ATTENTION: for set up modality of function more adapted to graze the keys simply. One beep indicates that the boiler has taken command. If PAR 5 is disabled,
the display remains lit.
Fig. 25
89
heating, press the key
of the controls .
The display will be as shown in the figure.
Change the values with the key (
and
). Standard visualisation will return to
the display by pressing the key
again, or
after 10 seconds if no key is pressed.
Regulation of the external
sensor (fig. 26/a)
Fig. 26
If an external sensor is installed, the value
of the output temperature is automatically
chosen by the system, which quickly adjusts
the of flow temperature on the basis of the
external temperature.
If you wish to change the value of the temperature, increasing or decreasing that calculated automatically by the electronic
card, proceed as indicated in the preceding
paragraph.
The level of various correction of a value of
temperature proportional calculated. The
display will be as shown in fig. 26/a.
Fig. 26/a
REGULATION OF THE D.H.W.
TEMPERATURE (fig. 27)
To set the desired temperature D.H.W.,
press the key
of the controls.
The display will be as shown in the figure.
Change the values with the key ( and ).
The display will return to the standard
visualisation by pressing the key
again,
or after 10 seconds if no key is pressed.
TO SWITCH OFF THE BOILER (fig. 28)
In the case of a short absence, press more
than two second the key
of the controls.
The display will be as shown in figure (boiler
in stand-by). In this way, leaving the electricity and the fuel supply connected, the boiler is protected from frost and from the
pump becoming blocked.
If the boiler is not used for a prolonged
period, it is advisable to disconnect the
electricity supply, by switching off the main
switch of the system, and to close the gas
tap and, if low temperatures are expected,
to completely empty the hydraulic circuits
to avoid pipes being broken by the formation of ice in the pipes.
90
Fig. 27
Fig. 28
ANOMALIES AND SOLUTIONS
When there is a functioning anomaly, the
display controls shows and red led switch
on.
Descriptions of the anomalies with the relative alarms and solutions are given below:
– AL 01 (fig. 29)
Press the key
of the controls to restart the boiler.
If the anomaly persists, request the
intervention of qualified technical personnel.
If it is necessary to repeat the system
loading procedure, it is advisable to
contact qualified technical personnel
to check the seal of the heating system
(to check whether there are any leaks).
– AL 04
Request assistance from qualified
technical personnel.
– AL 05
Request assistance from qualified
technical personnel.
– AL 11
Request assistance from qualified
technical personnel.
ES
PT
– AL 12
Request assistance from qualified
technical personnel.
ENG
– AL 16 (fig. 29/d)
Press the key
of the controls to restart the boiler.
If the anomaly persists, request assistance from qualified technical personnel.
– AL 06 (fig. 29/b)
Press the key
of the controls to restart the boiler.
If the anomaly persists, request assistance from qualified technical personnel.
Fig. 29/d
Fig. 29
– AL 02 (fig. 29/a)
If the water pressure detected is lower
than 0.5 bar, the boiler will stop and the
display will show “AL 02”.
Bring the pressure back to normal by
means by acting on the telescopic type
loading knob.
Lower the knob and turn it anti-clockwise
to open until the pressure indicated by
the hydrometer is between 1 and 1.2
bars.
WHEN FILLING HAS BEEN COMPLETED
CLOSE THE KNOB TURNING IT
CLOCKWISE.
Fig. 29/b
– AL 17
Request assistance from qualified
technical personnel.
GAS CONVERSION
– AL 07 (fig. 29/c)
Press the key
of the controls to restart the boiler.
If the anomaly persists, request assistance from qualified technical personnel.
If it is necessary to change to a different
type of gas, request assistance only from
authorised technical personnel.
MAINTENANCE
Annual maintenance of the appliance
should be planned sufficiently in advance,
requesting the assistance of authorised
technical personnel.
The boiler is supplied with an electric wire
for the electrical power supply which, in
the case of replacement, must be substituted only by another obtained from the
constructor.
OPEN
Apre
Fig. 29/c
– AL 08
Request assistance from qualified
technical personnel.
– AL 10
Request assistance from qualified
technical personnel.
2
bar
1
0
3
4
Fig. 29/a
– AL 11
Request assistance from qualified
technical personnel.
91
Documentation Dpt. Fonderie Sime S.p.A.
Fonderie Sime S.p.A - Via Garbo, 27 - 37045 Legnago (Vr)
Tel. + 39 0442 631111 - Fax +39 0442 631292 - www.sime.it
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