Sime PLANET 25/60 BF User manual

CONTENTS
1 DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 86
2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 88
3 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 97
4 USE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 100
INSTALLER INSTRUCTIONS
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 cock 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/or 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 (CAUTION Remember to release the pump coupled with the control
panel, if necessary, to protect the electronic control card).
– Purge the air present in the gas pipe by operating the pressure relief valve on the gas valve inlet.
PLANET 25-30/60
ENGLISH
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, a e not subject to appli-
cation of PED Directive 97/23/CEE as they meet the requirements of article 1 paragraph 3.6 of the Directive.

86
1.1 INTRODUCTION
The “PLANET 25/60 BF - 30/60 BF” wall
hung boilers with D.H.W. storage tank allow
a variety of requests to be met thanks to the
abundance of water which the capacious
tank unit makes available and thanks also to
an electronic management and control
system via a microprocessor. They are desi-
gned and built in compliance with European
directives 90/396//EEC, 89/336/EEC,
73/23/EEC, 92/42/EEC and the Euro-
pean norms EN 483 - EN 625. They may be
fuelled by natural gas (methane) and butane
gas (G30) or propane (G31).
Follow the instructions given in this manual
for the correct installation and perfect
functioning of the apparatus.
1 DESCRIPTION OF THE BOILER
1.2 DIMENSIONS
600
105
Ø 100/60
865
110
500
235
25 910
=
460
=
782
125 80 70 70 70 107
EU
CMRG
63
Fig. 1
CONNECTIONS
R C.H. return 3/4”
M C.H. flow 3/4”
G Gas connection 3/4”
E D.H.W. inlet 1/2”
U D.H.W. outlet 1/2”
C Re-circulation 1/2”
1.3 TECHNICAL FEATURES
* Flow calculated with a fixed temperature on the D.H.W. potentiometer of 60 °C for a maximum period of 10 minutes.
** The gas flow refers to the inferior calorific value in standard conditions of 15°C - 1013 mbar
*** Differential measure between the pressure upstream of the gas valve and the depression in sealed chamber.
25/60 BF 30/60 BF
Heat output
Nominal kW 9,3÷25,0 11,6÷29,5
kcal/h
8.000÷21.500 10.000÷25.400
Minimum kW 9,3 11,6
kcal/h 8.000 10.000
D.H.W. heat output
Nominal kW 25,0 29,5
Heat input
Nominal kW 10,8÷26,7 13,5÷31,6
Minimum kW 10,8 13,5
Wate content l45
Expansion vessel
Capacity l 8 8
Preloading pressure bar 1 1
C.H. setting ange °C 40÷80 40÷80
D.H.W. setting ange °C 10÷60 10÷60
D.H.W. p oduction
Tank unit capacity l 60 60
D.H.W. flow rate EN 625* l/min 13,3 15,7
Contin. D.H.W. flow rate (∆t 30°C) l/h 715 845
D.H.W. expansion vessel l 2,5 2,5
Tank unit maximum water head bar 7 7
Recovery time from 25 to 55°C min 4’30” 4’30”
Abso bed powe consumption W165180
25/60 BF 30/60 BF
Elect ical p otection g ade IP X4D IP X4D
Maximum wate head bar 3 3
Maximum tempe atu e °C 85 85
Smokes tempe atu e °C 123 123
Smokes flow gr/s 17,0 20,0
Catego y II2H3+ II2H3+
Type C12-32-42-52 C12-32-42-52
Weight kg 82 82
Main gas nozzles
Quantity n° 13 15
G20 ø mm 1,30 1,30
G30 - G31 ø mm 0,76 0,76
Gas flow **
Methane (G20) m3st/h 2,83 3,34
Butane (G30) kg/h 2,06 2,44
Propane (G31) kg/h 2,03 2,40
Bu ne gas p essu e ***
Methane (G20) mbar 1,9÷10,8 1,7÷11,3
Butane (G30) mbar 4,7÷28,4 4,7÷28,1
Propane (G31) mbar 4,7÷35,3 4,7÷35,9
Gas supply p essu e
Methane (G20) mbar 20 20
Butane (G30) mbar 30 30
Propane (G31) mbar 37 37

87
G
176
2
3
24
4
18
15
28
9
2
10
28 8
11
5
14
13
16
19 20
14
27
12 22
25
23
17
21 26
RM CUE
1.4 FUNCTIONAL DIAGRAM
Fig. 2
KEY
1 Fan
2 Water-gas exchanger
3 Combustion chamber
4 Gas valve
5 D.H.W. tank
6 C.H. sensor (SM)
7 100°C safety stat
8 Air relief valve
9 C.H. pump
10 D.H.W. pump
11 Expansion vessel
12 D.H.W. safety valve
13 C.H. safety valve
14 Boiler drain
15 Water pressure transducer
16 Automatic by-pass
17 D.H.W. expansion vessel
18 Gas cock (optional)
19 C.H. return cock (optional)
20 C.H. flow cock (optional)
21 D.H.W. cock (optional)
22 D.H.W. tank drain cock
23 D.H.W. sensor (SB)
24 85°C limit stat
25 Magnesium anode
26 Fixing jig
27 Filling group
28 Non return valve
1.5 MAIN COMPONENTS
1
17
9
8
7
6
5
4
3
2
10 11
12
13
14
15
16
18
–
+
Fig. 3
KEY
1 Control panel
2 Gas valve
3 C.H. pump
4 Non return valve
5 Burner
6 Water pressure transducer
7 Water-gas exchanger
8 85°C limit stat
9 Fan
10 Smoke pressure switch
11 C.H. expansion vessel
12 D.H.W. tank
13 100°C safety stat
14 C.H. sensor (SM)
15 Air relief valve
16 D.H.W. pump
17 D.H.W. expansion vessel
18 Ignition transformer

88
The boiler must be installed in a fixed loca-
tion and only by specialized and qualified
firms in compliance with all instructions
contained in this manual. Furthermore, the
installation must be in accordance with cur-
rent standards and regulations.
2.1 BOILER ROOM AND VENTILATION
The “PLANET” series may be installed,
without problems of location or combusti-
ble air, in any domestic environment.
2.2 BOILER SUPPORT BRACKET
For the mounting of the support bracket of
the boiler, which is supplied, observe the fol-
lowing instructions (fig. 4)
– Fix the bracket to the wall with appro-
priate dowels.
– Check with a spirit level that it is perfec-
tly in horizontal plane.
2.2.1 Installation plate (optional)
The installation plate code 8081209 is sup-
plied with an instruction sheet for the fixing.
2.2.2 Fitting the pipe elbows (optional)
To fit the conneting elbows supplied in kit
code 8075419, follow the instructions in
fig. 5. The D.H.W. cock and the elative
stub pipe a e supplied with the boile .
2.2.3 Fitting the isolating
valves (optional)
To fit the isolating valves supplied in kit code
8091807, follow the instructions in fig. 6.
The D.H.W. cock and the elative stub
pipe a e supplied with the boile .
2.3 CONNECTING UP SYSTEM
Before proceeding to connect up the boi-
ler, you are recommended to make the air
circulating in the piping in order to elimi-
nate any foreign bodies that might be
detrimental to the operating efficiency of
the appliance.
When making the hydraulic
connections, make sure that the dimen-
sions indicated in fig. 1 are respected.
The discha ge pipe of the safety valve
must be connected to a collecto funnel
fo channelling away any discha ge if the
safety valve goes into action.
The gas connection must be made using
seamless steel pipe (Mannesmann type),
galvanized and with threaded joints provi-
ded with gaskets, excluding three-piece con-
nections, except for initial and end connec-
tions. Where the piping has to pass through
walls, a suitable insulating sleeve must be
provided. When sizing gas piping, from the
meter to the boiler, take into account both
the volume flow rates (consumption) in
m3/h and the relative density of the gas in
question. The sections of the piping making
up the system must be such as to guaran-
tee 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
– 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 Filte 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.
2.4 CHARACTERISTICS
OF FEEDWATER
To prevent lime scale and damage to the
tap water exchanger, the water supplied
2 INSTALLATION
Fig. 4
KEY
1 Fixing jig
2 Stub pipe 3/4 ”x18
3 Washer ø 24/17
4 Gas cock 3/4 ”MF
5 Elbow 3/4 ”x 18
6 Washer ø 18.5/11.5
7 Shaped elbow 1/2 ”x14
Fig. 5
Fig. 6
KEY
1 Fixing jig
2 Straight union 1/2 ”x14
3 Washer ø 18,5/11,5
4 Shaped elbow 1/2 ”x14
5 D.H.W. cock stub pipe*
6 D.H.W. inlet
cock 1/2 ”MF *
7 C.H. flow/return
cock 3/4 ”MF
8 Washer ø 24/17
9 Gas cock 3/4 ”MF
10 Straight union 3/4 ”x18
11 Stub pipe 3/4 ”x18
12 Straight union 3/4 ”x18 with ogive
13 Flow regulator yellow (“25/60” vers.)
and brown (“30/60” vers.) (12 l/min) *
* Components supplied with the boiler.

should have a hardness of no more than
20°F. In all cases the water used should be
tested and adequate treatment devices
should be installed. To prevent lime scale or
deposits on the primary exchanger, the
water used to supply the heating circuit
should must be treated in accordance with
UNI-CTI 8065 standards. It is absolutely
essential that the water is to be treated in
the following cases
– very extensive system (with high con-
tents of feedwater);
– frequent addition of makeup water into
the system;
– should it be necessary to empty the
system either partially or totally.
2.5 SYSTEM FILLING
The filling of the boiler and the system is
done by the filling cock located on the bot-
tom of the boiler (fig. 7).
The filling pressure of the system cold
must be 1 ba . Once the filling has been
completed, close the filling cock.
2.6 FLOW REGULATOR
At the inlet of the hot water a flow regula-
tor is installed, from 10 l/min (yellow) for
the “25/60” version and from 12 l/ min
(brown) for the “30/60” version.
2.7 COAXIAL DUCT
The air inlet-smoke outlet assembly ø
60/100 is supplied in kit code 8084805
and comes with an instruction sheet for
the assembly.
2.7.1 Diaph agm installation
The diaphragm is supplied together with
the “30/60 BF” boiler. See figure 8 for the
positioning.
ATTENTION: Install the diaph agm only
when the length of the ø 60/100 coaxial
duct is less than 1 m.
2.7.2 Coaxial duct accesso ies
The accessories necessary for the realisa-
tion of this type of installation and some of
the connecting systems that can be used
are shown in fig. 9. With the elbow supplied
in the kit the maximum length of the duct
should not be g eate than 3 met es. If
the ext a elbow cod. 8085601 is used the
duct could each the maximum length of
1.6 met es. With the use of the vertical
extension cod. 8086902 the end of the
duct must always have an horizontal outlet.
2.7.3 Positioning the outlet te minals
The outlet terminals for forced-draught
appliances may be located in the external
perimeter walls of the building.
To provide some indications of possible solu-
tions, Table 1 gives the minimum distances
to be observed, with reference to the type
of building shown in fig. 9.
89
Fig. 7
Fig. 8
KEY
1a-b Coaxial duct kit code 8084802
2 Extension L.815 code 8084800
3 Vertical extension L.584 code 8086900
4 Supplementary 90° elbow code 8085600
Fig. 9
CLOSE
Fig. 7/a Fig. 10
IMPORTANT:
Each additional 90° cu ve installed educes the
available length by 0.90 met es.
Each additional 45° cu ve installed educes the
available length by 0.45 met es.

90
2.7.4 Roof outlet coaxial duct
The roof outlet terminal L.1284 cannot be
shortened and the positioning of the tile
distances must be no less than 600 mm
from the discharge terminal outlet (fig.
11). The accessories required for this
type of installation and some of the con-
necting systems that can be used are
shown in fig. 12. Up to a maximum of
th ee extensions can be added to each a
ectilinea length of 3.7 met es.
2.8 SEPARATE DUCTS
In the installation it is best to observe the
directions requested by the Norms and a
few practical considerations
– With direct external suction, when the
duct is greater than 1 m in length, insu-
lation is recommended in order to avoid,
in particularly cold periods, the formation
of dew on the outside of the tubing.
– With discharge duct positioned on the
outside of the building, or in cold environ-
ments, insulation is necessary to avoid
starting failures of the burner. In such
cases, a system for the collection of con-
densation must organised.
–
If a segment of the flue passes through
a flammable wall, this segment must be
insulated with a glass wool pipe insula-
tor 30 mm thick, with a density of 50
kg/m
3
.
The maximum total length obtained by
summing up the lengths of the suction
and discha ge tubing is dete mined by
the load losses of the single fittings atta-
ched (excluding the splitte ) and must not
be g eate than 8.00 mm H20 (ve s.
“25/60”) and 9.00 mm H2O (ve s.
“30/60 ”).
For the load losses of the fittings refer to
Table 2.
2.8.1 Sepa ate ducts
accesso ies
For the realisation of this type of discharge
is supplied a kit cod. 8093000 (fig. 13).
The sector diaphragm in the kit, must be
used according to the maximum load loss
allowed in both ducts, as indicated in fig.
TABLE 1
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 pro-
ducts 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.
Siting of terminal Appliances from 7 to 35 kW
(distances in mm)
A - below openable window 600
B - below ventilation opening 600
C - below eaves 300
D - below balcony (1) 300
E - from adjacent window 400
F - from adjacent ventilation opening 600
G - from horizontal or vertical soil or drain pipes (2) 300
H - from corner of building 300
I - from recess in building 300
L - from ground level or other treadable surface 2500
M - between two terminals set vertically 1500
N - between two terminals set horizontally 1000
O - from a surface facing without openings or terminals 2000
P - as above but with openings and terminals 3000
KEY
1 Tile with articulated joint
2 Lead panel
3 Collar
4 Locking screw
Fig. 11
Fig. 12
KEY
1 Vertical extension L. 194
with take-off points code 8086903
2 Extension L. 815 code 8084804
3 Tile with articulated joint code 8091300
4 Roof outlet terminal L. 1284
code 8091200
5 Supplementary 90° elbow code 8085601

91
13/a. The complete range of accessories
necessary for each type of installation are
given in fig. 14.
2.8.2 Roof outlet sepa ate ducts
The roof outlet terminal L. 1390 cannot be
shortened and in the positioning of the tile
the distance from the discharge outlet of
the terminal must not be less than 700
mm (fig. 15).
The accessories necessary for this type of
discharge and some of the other type of
systems that it is possible to use are
shown in fig. 16.
By utilising the doubler fitting (7 fig. 16) it is
possible to have a concentric discharge. In
these cases, during assembly, it is neces-
sary to get the washer in silicon used on
the reduction of the terminal (5 fig. 17) to
be substituted with the doubler and place it
in the housing of the doubler.
Fo this type of discha ge the sum of the
maximum development allowed of the
ducts must not be g eate than 8.00 mm
H2O (ve s. “25/60”) 9.00 mm H2O (ve s.
“30/60”).
To calculate the load losses of the single fit-
tings attached refer to Table 2.
Example of allowed installation calculation for “25/60” version the sum of the load los-
ses in each inserted fitting is less than 8.00 mm H2O
Inlet Outlet
7 metres horizontal tube ø 80 x 0.20 1.40 –
7 metres horizontal tube ø 80 x 0.30 – 2.10
n °2 90° elbows ø 80 x 0.30 0.60 –
n °2 90° elbows ø 80 x 0.40 – 0.80
n °1 terminal ø 80 0.10 0.30
Total load loss 2.10 + 3.20 = 5.3 mm H2O
With this total load loss the ø 38 diaphragm from the intake pipe must be removed.
105 120
150
ø80
4
3
1
2
Fig. 13
KEY
1 Fixing screw
2 Sponge washer ø 125/95
3 Air-smokes flow splitting unit
with take-off points
4 Sector diaphragm ø 38
Sections of diaphragm Total load loss
to removed mm H2OPa
00÷2 0÷19,6
22÷3 19,6÷29,4
43÷4 29,4÷39,2
64÷5 39,2÷49,0
Remove diaph agm 5÷8 49,0÷78,4
Sections of diaphragm Total load loss
to removed mm H2OPa
40÷4 0÷39,2
54÷5 39,2÷49,0
65÷6 49,0÷58,8
Remove diaph agm 6÷9 58,8÷88,2 Fig. 13/a
“25/60” ve sion
“30/60” ve sion
TABLE 2
Accessories ø 80 Load loss (mm H2O)
“25/60” version “30/60” version
Inlet Outlet Roof outlet Inlet Outlet Roof outlet
90° elbow MF 0,30 0,40 – 0,30 0,50 –
45° elbow MF 0,20 0,30 – 0,20 0,40 –
Extension L.1000 (horizontal) 0,20 0,30 – 0,20 0,40 –
Extension L.1000 (vertical) 0,30 0,20 – 0,30 0,30 –
Outlet terminal – 0,30 – – 0,40 –
Inlet terminal 0,10 – – 0,10 – –
Doubler fitting 0,20 – – 0,30 – –
Roof outlet terminal L. 1390 – – 0,50 – – 0,60
Tee condensation outlet – 1,00 – – 1,10 –
SECTOR OF DIAPHRAGM

92
Fig. 14
KEY
1 Air-smokes flow splitting unit
with take-off points code 8093000
2a 90° elbow MF code 8077404
2b Isolated 90° elbow MF code 8077408
3a Extension L. 1000 code 8077303
3b Isolated extension L. 1000 code 8077306
4 Outlet terminal code 8089501
5 Int.-ext. ring lit code 8091500
6 Inlet terminal code 8089500
7 45° elbow MF code 8077406
8 Condensation outlet L.135 code 8092800
9 Locking junction (n.5) code 8092700
Fig. 15 Fig. 16
KEY
1 Air-smokes flow splitting unit
with take-off points code 8093000
2a 90° elbow MF code 8077404
2b Isolated 90° elbow MF code 8077408
3a Extension L. 1000 code 8077303
3b Isolated extension L. 1000 code8077306
4 Int.-ext. ring lit code 8091500
5 Inlet terminal code 8089500
6 Locking junction (n. 5) code 8092700
7 Doubler fittng code 8091400
8 Tile with articulated joint code 8091300
9 Roof outlet terminal L. 1390 code 8091201
10 45° elbow MF code 8077406
11 Condensation outlet L.135 code 8092800
12 Tee condensation outlet code 8093300
KEY
1 Tile with articulated joint
2 Lead panel
3 Collar
4 Locking screw
5 Reducing fitting
with washer

2.9 ELECTRICAL CONNECTION
The boiler is supplied with an electric supply
cable, which in case of replacement must
be requested from SIME. The supply must
be carried out with a monophase voltage of
230V - 50 Hz via a general switch protec-
ted by fuses, with a distance between con-
tacts of at least 3 mm. Observe the L-N
polarities and the earth connection.
NOTE: Device must be connected to an
efficient ea thing system. SIME declines
any esponsibility fo damages to pe sons
o objects due to failing to ea th the boile .
Always tu n off the powe supply befo e
doing any wo k on the elect ical panel.
2.9.1 Room stat connection
(fig. 17 pos. A)
In order to have access to the connector of
the electronic panel (3), remove the cover of
the control panel and electrically connect the
room stat to the TA terminals (5-6) after
having removed the existing bridge. The ther-
mostat or chronothermostat to be used,
whose installation allows a better regulation
of the temperature and comfort of the envi-
ronment, must be class II in compliance with
norm EN 60730.1 (clean electrical contact).
ATTENTION: The int oduction of g id elect i-
city to the connecto (3) i eve sibly dama-
ges the egulation panel. Befo e connection
ensu e that the e is no g id elect icity.
2.9.2 Connection “Logica Remote
Cont ol ” (fig. 17 pos. B)
The electrical plants must be in compliance
with local norms and cables must be laid
observing the safety low voltage specifica-
tions EN 60730. For lengths up to 25 m
use cables with sections of 0.25 square
mm and for lengths greater than 50 m use
cables with sections of 0.5 square mm.
First of all assemble and cable the socket
(2) and then insert the apparatus that will
start as soon as it receives electricity. To
have access to the connector (3) remove
the cover of the control panel and electri-
cally connect the climate regulator to the
terminals CR (6-7) .
ATTENTION: Exte nal elect icity cannot
be connected to te minals 1-2-3-4 of the
socket. The tele educe of the telephone
with a contact of ze o potential o a win-
dow contact can be connected to te mi-
nals 3-4. A type of elect onic appa atus
fo the cont ol of civil plants via a telepho-
ne line that can be pointed out is the
model TEL 30.4 LANDIS & STAEFA.
2.9.3 Connection exte nal tempe atu e
senso (fig. 17 pos. C)
The cables must be laid observing the
safety low voltage specifications EN
60730. For lengths up to 25 m use cables
with sections of 0.25 square mm and for
lengths greater than 50 m use cables with
sections of 0.5 square mm. To have access
to the connector of the boiler (3) remove
the cover of the control panel and electri-
cally connect the external temperature
sensor to the terminals SE (8-9).
93
3
TERMOSTATO
AMBIENTE
LOGICA REMOTE
CONTROL
LOGICA REMOTE
CONTROL
SONDA
ESTERNA
1
2
A
B
C
Fig. 17
KEY
1 Control panel
2 Socket “Logica Remote Control ”
3 Connector J2
TA Room stat (not supplied)
CR Logica Remote Control (optional)
SE External temperature sensor (optional)
SB D.H.W. sensor
ROOM STAT
EXTERNAL
SENSOR

94
2.10 LOGICA REMOTE CONTROL
All the boiler's functions can be managed by
a optional digital multifunctional device code
8092204 for the remote of the boiler itself
and for regulating room climatic conditions
with an operational reserve of 12 hours.
The heating circuit is controlled by the room
temperature sensor built-in the equipment
or by the atmospheric conditions, with or
without environmental inflow, if the boiler is
connected to an external sensor.
Cha acte istics:
– Ergonomic control unit divided according
to function (control levels).
– Clear division of basic functions
•operating regime, correction of set
value and presence button are directly
accessible;
•Different real current values are
accessible through the "info" button;
•other functions can be programmed
after the cover has been opened;
•special service level with protected
access;
– Each setting or modification is displayed
and confirmed.
– Tome setting (special line for changing
BST/CET).
– Heating programme with max. 3 heating
periods per day, individually selectable.
– Copy function for easy transfer of hea-
ting programme to the next or pre-
vious day.
– Holiday programme the programme is
interrupted for the holiday period and
automatically restarted on returning
home.
– Option to return the heating program to
default values.
– Programming lock (child safety).
Functions:
– Delivery temperature control guided by
the atmospheric conditions, taking into
account the dynamics of the building.
– Delivery temperature control guided by
atmospheric conditions with influence of
ambient temperature.
– Ambient temperature control only.
– Adjustable influence of ambient tempera-
ture shift .
– Switch-on and switch-off optimisation.
– Rapid lowering.
– ECO functions (daily heating limiter, auto-
matic summer/winter switch-over).
– Controllable maximum C.H. flow tempe-
rature limit (specifically for floor plants).
– Limitation of increase in pre-set C.H. flow
temperature.
– Anti-freeze protection for buildings.
– Hourly programming of the tank unit
temperature on two levels comfort and
reduced.
– Domestic hot water control with nominal
value requirement and enable.
– Connection to room sensor or switching
of operating regime through the telepho-
ne system with external contact or
through a window contact.
– Anti-bacterial.
2.10.1 Installation
The unit must be installed in the main living
room. For installation, follow the assembly
instructions inserted in the package. At this
point, with the selector knob on ( ), the
installer can adjust the basic parameters set-
J7 J5
J4
J3
J2
KEY
EV1 Gas valve coil
EV2 Gas valve coil
EA Ignition electrode
ER Sensing electrode
TS 100°C safety stat
PF Smoke pressure switch
VFan
TPA Water pressure transducer
PI C.H. pump
PB D.H.W. pump
SE External sensor
TA Room stat
M Modulator
SM C.H. sensor (blue)
TL 85°C limit stat
TR Transformer 230 - 24V
SB D.H.W. sensor
CR Logica Remote Control (optional)
TRA Ignition transformer
OP Time programmer
Note: The oom stat must be connected
to te minals 5-6
CONNECTOR SPARE PART CODES
J2 code 6278613
J3 code 6278611
J4 code 6278609
J5 code 6278612
J7 code 6278608
Fig. 18
2.9.4 Wi ing diag am

95
tings according to the individual needs (point
2.10.2). If the e is a the mostatic adiato
valve fitted, this must be set to maximum.
2.10.2 Installation settings
The settings for the basic operating para-
meters for individual needs are reported in
the instruction leaflet supplied with the
"Logica Remote Control" and in the section
reserved for the user in this manual.
For further adjustments which can be car-
ried out by the installer, the "Logica Remote
Control" offers a level of service and para-
meterising which can only be accessed
through a special combination of buttons.
To activate this level of service or parame-
terising press buttons and least
5 seconds.
This will activate the parameterising level.
Then use the same arrow buttons to select
the individual input lines and adjust the
values with or .
Antif eeze p otection
"P e-set ambient
tempe atu e value"
Summe /Winte switch-ove
tempe atu e
Type of cont ol:
0 = with ambient influence
1 = without ambient influence
Influence of ambient tempe atu e
Heating takes place up to this pre-set value if the plant is activated in standby
(e.g. holidays).
In this way, the building antifreeze function is active, preventing an excessive
lowering of the ambient.
This parameter regulates the temperature of the automatic summer/win-
ter switch-over.
This parameter de-activates the ambient influence and as a result all the
optimisations and adaptations.
If a valid external temperature is not transmitted, the controller switches to
the pure ambient control guide variable.
If the ambient controller is used only as a remote control (placed in the refe-
rence room and without an external sensor connected), the value must be
set at 0 (zero). If the change in ambient temperature from the pre-set value
remains high during the entire day, the influence must be increased. If the
ambient temperature is around the pre-set value (control oscillation), the
influence must be reduced.
Note: If the ambient tempe atu e influence constant is set at 0, the adap-
tation of the heating cu ve is deactivated. In this case, pa amete 57 will
have no effect at all.
54
SETTINGS THE HEATING CIRCUIT PARAMETERS
52
52
53
Maximum limit of C.H. flow
tempe atu e
Va iation of the maximum speed of the
C.H. flow tempe atu e
Activation of adaptation
Optimisation of
switch-on time
Heating g adient
P esetting switch-off
time (00 = off)
The C.H. flow temperature is limited to the maximum set value.
The increase per minute of the prescribed C.H. flow temperature value sent
in °C is limited to the imposed value.
With the activation of the adaptation, the pre-set value transmitted to the
boiler regulator is adapted to the effective heat need.
The adaptation functions with both the atmospheric guide with ambient
influence and with pure ambient control.
If the "Logica Remote Control" is set as a remote control only, the adaptation
must be is deactivated.
If the switch-on time optimisation is active, the "Logica Remote Control" modi-
fies the heating gradient until it finds the optimum heating point
0 = OFF 1 = ON
The "Logica Remote Control" selects the switch-on time such that the set
value has more or less been reached at the start of the usage time.
The more severe the night-time cooling, the earlier the heating time starts.
Example Current ambient temperature 18.5°C
Nominal ambient temperature 20°C
Heating gradient 30 min/K
Presetting of switch-on time
1.5 K x 30 min/K = 45 minutes
00 means that the switch-o time has not been pre-set (function disabled).
If the switch-off time optimisation is active (value > 0), the "Logica Remote
Control" modifies the pre-set time until it finds the optimum switch-off time.
55
56
57
58
59
60

96
SETTING THE D.H.W. PARAMETERS
Reduced D.H.W.
tempe atu e value
D.H.W. filling
The hot water may be set to a reduced temperature value, such as
40°C, which is outside the comfort zone, such as 60°C (daily pro-
gramme 8).
0= 24 hours/ day - Hot water is always available at the temperature set
with user parameter n°3.
1= standard - Hot water according to the daily heating programme.
In the comfort areas of heating the temperature of the D.H.W. tank is
regulated to the value set with user parameter n° 3.
In the reduced areas of heating the temperature of the D.H.W. tank is
regulated to the value set with parameter n° 61 of the service level.
2= service disconnected
3= second daily programme (8) - Every day of the week the temperature of
the hot water is set according to programme 8. In this case there is a
single programming for all the days of the week and three time zones are
available. In the time spans set the temperature of the D.H.W. tank is
regulated according to that set in parameter n°3. In the remaining hours
the D.H.W. tank is controlled to the temperature set with parameter n°
61 the of service level.
62
61
Final use level 2
p og amming block
Ent ance function te minal 3-4
This block (1) can be activated to display all the parameters without modif-
ying them. Pressing buttons or displays “OFF”.
WARNING:
The activation block can be deactivated temporarily by pressing buttons
and simultaneously; a confirmation sign appears on the display. At this
point press simultaneously the buttons and for at least 5 seconds.
To permanently remove the activation block, set parameter 63 on 0.
The freely programmable input (terminals 3 and 4 of the socket) allows
three different functions to be activated. The parameter has the following
significance
1= If an external sensor is connected, the display will show the temperature
of the external sensor ( _ _ = no sensor connected, function disabled).
2= With an external contact, it is possible to switch-over to "reduced pre-
set value of the ambient temperature".
3= With an external contact, it is possible to switch-over to "reduced pre-
set value of the antifreeze ambient temperature" (short circuit 0 0 0 or
interruption _ _ _ ). The display shows the current status of the external
contact.
64
63
SERVICE VALUES
Ope ating mode of exte nal contact
Exte nal and ambient
senso influence
Anti-bacte ial function
If the entrance (terminals 3 and 4 of the socket) is connected to a zero potential
external contact (parameter 64 = 2 or 3), the operating mode of the contact can
be determined (remote telephone switch or window contact). The operating
mode specifies the status of the contact in which the required function is active.
Display Operating mode closed (short circuit) 0 0 0
Operating mode open (interruption) _ _ _
Determines the mix ratio between the internal and external ambient sensor
when parameter 64 = 1.
0 % = internal sensor only active (0% external - 100% internal)
50 % = mean value of external + internal sensor
100 % = external sensor only active
The set mix is used for ambient control and display.
If the external sensor is short circuited or interrupted, the operation conti-
nues with the internal sensor.
This function allows the hot water to be brought to a high temperature once
a week in order to eliminate eventual pathogenic agents.
It is active every Monday for a maximum duration of 2.5 hours at a delivery
temperature of 65°C.
0 = not active 1 = active
65
66
69

97
3.1 ELECTRONIC PANEL
Made in accordance with the Low Voltage
EEC directive 73/23, supplied with 230
Volt; via a transformer it sends 24 Volt to
the following components gas valve, safety
stat, C.H. and D.H.W. sensors, external
temperature sensor (optional), modulator,
water pressure transducer, smoke stat,
room stat or “Logica Remote Control”.
An automatic and continuous modulating
system allows the boiler to adjust the
power to the various plant or user
demands. The electronic components are
guaranteed to work in a temperature
range between 0 and +60 °C.
3.1.1 Functioning faults
The leds that show an irregular and/or
incorrect functioning of the apparatus are
shown in fig. 20.
3.1.2 Devices
The electronic panel has the following
devices
–T imme “POT. RISC.” (10 fig. 21)
It regulates the maximum value of hea-
ting power. To increase the value turn
the trimmer in a clockwise direction and
to decrease it turn the trimmer in an
anti-clockwise direction.
–T imme “POT. ACC.” (6 fig. 21)
Trimmer for the changing of the ignition
pressure level (STEP) of the gas valve.
According to the type of gas for which
the boiler is predisposed, the trimmer
must be regulated so as to provide the
burner with a pressure of around 3
mbar for methane gas or 7 mbar for
butane gas (G30) and propane gas
(G31). To increase the pressure turn the
trimmer in a clockwise direction, to
decrease it turn the trimmer in an anti-
clockwise direction. The level of pressure
of slow ignition is able to be set during
the first 5 seconds from the starting of
the burner. After having established the
level of pressure at ignition (STEP) accor-
ding to the type of gas, check that the
heating gas pressure is still on the value
set beforehand.
–Connecto “MET-GPL” (7 fig. 21)
With the connector disconnected, the
boiler is ready to function with METHANE;
with the connector connected with GPL.
–Connecto “ANN. RIT.” (5 fig. 21)
The electronic panel is programmed, in
heating phase, with a technical pause by
the burner of around 90 seconds, both
at the beginning when the plant is cold
and in the subsequent startings. This is
so to avoid ignitions and switching off
with very short intervals, that may in par-
ticular be found in plants with high losses.
At every restarting, following the period
of slow ignition, the boiler will position
itself for around 1 minute to the mini-
mum modulating pressure to then return
to the set value of heating pressure.
With the insertion of the bridge both the
technical pause programmed and the
period of functioning at minimum pressu-
re in the ignition phase will be eliminated.
In such a case, the time that runs
between the switching off and the next
ignition will be in function of a variance of
5°C, as shown by the C.H. sensor (SM).
–DIP SWITCH (13 fig. 21)
Ensure that the riders are inserted in
the position shown in order for the boiler
to work
–Connecto “Modu eg Sel.” (14 fig. 21)
With the bridge disconnected the boiler
is predisposed to function with the SIT
gas valve, and with the bridge connected
it is predisposed to function with the
HONEYWELL gas valve.
–Connecto “Albat os” (15 fig. 21)
The bridge must always be disconnected.
It is connected only when multiple boilers
are installed in a sequence/cascade.
ATTENTION: All of the ope ations desc i-
bed above must be ca ied out by autho i-
sed pe sonnel.
3 CHARACTERISTICS
2.10.3 G adient of the cha acte istic
heating cu ve
The gradient of the characteristic heating
curve is imposed on the current value “15”
of Logica. Increasing the gradient as shown
in the drawing of fig. 19, the C.H. flow tem-
perature increases in correspondence to
the outside temperature.
EXAMPLE Choosing a gradient of 15 with
an outside temperature of –10°C we shall
have a C.H. flow temperature of 60°C.
2.11 EXTERNAL TEMPERATURE
SENSOR
The "Logica Remote Control" can be con-
nected to an external temperature sensor
available an optional extra (code 8094100).
This configuration ensures and maintains
the required temperature constant in the
room. The ambient temperature is, in fact,
indicted and evaluated as the calculated
mean of the value measured inside and out-
side the dwelling.
For installation, follow the assembly instruc-
tions inserted in the package.
Fig. 19

98
3.2 T EMPERATURE SENSORS
AND WATER PRESSURE
TRANSDUCER
Tables 3 - 3/a show the resistance values
(Ω) that are obtained on the sensors as the
temperature varies and the transducer
when the pressure varies.
With the C.H. senso (SM) inte upted
the boile will not function with both
se vices.
With the D.H.W. senso (SB) inte upted
the boile functions only with heating.
Green led off
in case of no electricity
Red led flashing in case of
insufficient water pressure (*)
Red led flashing problem with C.H. sensor (SM)
Red led flashing coil of the modulator stopped
Red led flashing problem in flame detector circuit
Red led flashing
in case of C.H. safety valve
interception (*)
Red led flashing lack
of communication with the
“Logica Remote Control”
Red led on ignition failure.
Turn the selector
CR/OFF/EST/INV/UNBLOCK
in the position unblock ( )
to restore functioning
Red led flashing safety stat
interception. To restore
functioning turn the selector
CR/OFF/EST/INVE/UNBLOCK
in the position unblock ( )
Red led flashing fan fault.
After 30 minutes of the switching
off of the fan the panel will reactivate it.
(*) When all the leds from 0,5 to 2,5 bar are switched off check
the connections of the water pressure transducer.
Fig. 20
Red led flashing smoke pressure switch fault.
15 13
1
3
5
7
8
910 11
12
14 6
610
KEY
1 Ignition electrode earth faston,
3 Fuse (1.6 AT)
5 Connector “ANN. RIT.”
6 Trimmer “POT. ACC.”
7 Connector “MET-GPL”
8 D.H.W. potentiometer
9 Detection electrode faston
10 Trimmer “POT. RISC.”
11 C.H. potentiometer
12 Selector CR/OFF/EST/INV/UNBLOCK
13 DIP SWITCH
14 Connector “Modureg Sel.”
15 Connector “Albatros”
Fig. 21
NOTE: In o de to have access to the egulating t imme , (6) and (10), take out
the C.H. potentiomete knob.
TABLE 3 (Senso s)
Temperature (°C) Resistance (Ω)
20 12.090
30 8.313
40 5.828
50 4.161
60 3.021
70 2.229
80 1.669
TABLE 3/a (T ansduce )
Pressure Resistance (Ω)
(bar) min max
0 297 320
0,5 260 269
1 222 228
1,5 195 200
2167173
2,5 137 143
3108113
3,5 90 94

3.3 ELECTRONIC IGNITION
The ignition and flame sensing are control-
led by two electrodes that guarantee the
maximum safety, with a time of intervention
of one second for accidental switching off or
lack of gas.
3.3.1 Functioning cycle
Turn the selector knob to summer or winter
and note, from the lighting up of the green
led ( ), whether electricity is present.
The starting up of the burner should take
place within a maximum of 10 seconds.
We can summarise the manifestations of a
failure to start, with consequent activation
of the failure signal as follows
–Gas failu e
The ignition electrode continues to spark
for a maximum of 10 seconds, the pilot
burner does not start, the blockage indi-
cator lights up.
This may occur at the first ignition
attempt or after long periods of inactivity
with the presence of air in the tubing.
May be due to the gas cock being closed
or a break in the valve coil, which do not
allow opening.
–The ignition elect ode does not give a
jump spa k
In the boiler only the gas opening to the
burner is noted, after 10 seconds the
block signal lights up.
May be due to the fact that the cable of
the electrode is interrupted or is not well
fixed to the terminal of the ignition tran-
sformer.
–The flame is not detected
From the time of the ignition a continuous
jump spark from the electrode is noted
despite the burner being lit. After 10
seconds the sparking stops, the burner
goes off and the block signal lights up.
The cable of the detector electrode is
interrupted or the electrode itself is
earthed; the electrode is very worn and
needs to be replaced. The control board
is faulty.
Due to a sudden fall in electricity the burner is
immediately arrested, once the electricity is
restored, the boiler will automatically restart.
3.4 SMOKE PRESSURE SWITCH
The switch with a fixed setting 6.0-7.5 mm
H2O (vers. “25/60”) and 3.5-4.5 mm H2O
(vers. “30/60”), is able to guarantee the
functioning of the boiler with inlet and outlet
pipes at the maximum limit length allowed.
The value of the smoke pressure switch
signal is measured with a special instru-
ment connected to the positive and negati-
ve pressure plugs on the upper part of the
sealed chamber.
3.5 SYSTEM AVAILABLE HEAD
The residual head for the heating plant is
represented, in function of the C.H. flow, by
the graph in fig. 22.
3.6 MAINS ELECTRICITY CONNECTION
Use a separate electric line to link up the
room stats and relative zone valves or
pumps. The connection of the micros or
the relay contacts is carried out on the
connector of control board (J2) after
having removed the existing bridge (fig. 23).
99
0
600
200 1600 140012001000800600400
PORTATA (l/h)
PREVALENZA RESIDUA (mbar)
500
400
100
200
300
25/60
30/60
Format e Planet 25 - 30/60
Fig. 22
RESIDUAL HEAD (mbar)
FLOW RATE (l/h)
CR1
CR
TA
TA
Connettore J2
CIRCUITO CON POMPE DI ZONA
NOTA Sostituire la pompa impianto della
caldaia con il tronchetto optional cod. 8094001.
Collegare il cavo della pompa impianto ad un
relè di potenza (RL).
L
N
TA1 CRL
R1 P
TA
RP1
CR CR1
RL Cavo
pompa
impianto
CIRCUITO CON VALVOLE DI ZONA
L
N
TA TA
1
VZ RVZ
1
R 1
NOTA I relé vengono impiegati solo
nel caso le valvole di zona siano
prive di micro.
Fig. 23
KEY
TA-TA1 Zone room stat
VZ-VZ1 Zone valve
R-R1 Zone relay
CR-CR1 Relay contact or
micro zone valve
RL Power relay
CRL Power relay contact
P-P1 Zone pump
J2 connector
Pump cable
1. CIRCUIT WITH ZONE VALVES 2. CIRCUIT WITH ZONE PUMPS
NOTE Relays are used only if
the area valves have no
microswitches. NOTE Replace the heating pump with the
optional stub pipe, code 8094001. Connect
the pump cable to a power relay (RL).

100
4.1 D.H.W. PRODUCTION
The preparation of hot water is guaranteed
by the glass enamelled tank unit with
magnesium anode for the protection of the
tank and inspection flange for its control
and cleaning.
The magnesium anode must be checked
annually and substituted when it is wo n.
If the boile does not p oduce hot wate ,
make su e that the ai has been eleased
by p essing on the manual vents afte
having switched off the main switch.
4.2 GAS VALVE
The boiler is produced with SIT 845 SIGMA
gas valve (fig. 24) and HONEYWELL VK
8105N gas valve (fig. 24/a).
NOTE: In case of eplacement of the SIT
gas valve to HONEYWELL o vice-ve sa,
p ess on the “Modu eg” connecto of
elect onic panel (14 fig. 21). With the
b idge disconnected the boile is p edi-
sposed to function with the SIT gas valve,
and with the b idge connected it is p edi-
sposed to function with the HONEYWELL
gas valve.
The gas valve is set at two pressure values
maximum and minimum, that correspond,
according to the type of gas, to the values
indicated in Table 4.
The setting of the gas pressure at mini-
mum and maximum values is carried out by
SIME variations are discouraged.
Only in the passing from one type of gas
supply (methane) to another (butane or
propane) is a change in the working pressu-
re allowed.
It is essential that this ope ation is ca -
ied out by autho ised pe sonnel.
Once the change in wo king p essu e has
been ca ied out, seal the egulato s.
When proceeding with the setting of the
pressure, it is necessary to follow a pre-
established order, first the MAXIMUM and
then the MINIMUM.
4.2.1 Maximum and minimum p essu e
adjustment SIT 845 SIGMA
In order to carry out the setting of the
maximum pressure proceed in the fol-
lowing way (fig. 25)
– Connect the differential manometer as
shown in fig. 24/b.
– Remove the plastic cap of the modulator
(1).
– Place the D.H.W. potentiometer knob on
the maximum value.
– Start the boiler by pressing the rotary
switch and open the hot water cock.
– Using a 10 wrench turn the nut (3) to
find the maximum pressure as shown in
Table 4: to reduce the pressure turn the
nut anti-clockwise, to increase the pres-
sure turn the nut clockwise.
4 USE AND MAINTENANCE
3
4
2
1
5
6
Fig. 24
KEY
1 Modulator
2 EV1-EV2 coils
3 Pressure inlet upstream
4 Pressure inlet downstream
5 VENT plug
TABLE 4
Burner max. Modulator Burner min. Modulator
Gas type pressure current pressure current
mbar mA mbar mA
Methane (G20) 10,8 - 11,3 130 1,9 - 1,7 0
Butane (G30) 28,4 - 28,1 165 4,7 0
Propane (G31) 35,3 - 35,9 165 4,7 0
12
4 35
Fig. 24/a
1
2
3
4
Fig. 24/b
KEY
1 Modulator
2 EV1-EV2 coils
3 Pressure inlet upstream
4 Pressure inlet downstream
5 VENT plug
KEY
1 Pressure inlet downstream
2 VENT plug
3 Sealed chamber
4 Differential manometer

101
– Turn off and turn on the boiler a few
times whilst keeping the hot water cock
constantly open to verify that the pressu-
re corresponds to the values given in
Table 4.
After having regulated the maximum pres-
sure, proceed with the setting of the mini-
mum pressure (fig. 25)
– Disconnect the electric supply of the
modulator.
– With the D.H.W. potentiometer knob on
the maximum value, the hot water cock
open and the burner alight, holding the
nut (3) blocked, turn the screw (2) to find
the minimum pressure value as shown in
Table 4: to decrease the pressure turn
the nut anti-clockwise and to increase
the pressure turn the nut clockwise.
– Turn on and turn off the boiler a few
times whilst keeping the hot water cock
constantly open and verify that the pres-
sure corresponds to the values fixed.
– Reconnect the electrical supply of the
modulator.
– Replace the plastic cap (1).
4.2.2 Maximum and minimum
p essu e adjustment
HONEYWELL VK 8105N
For the setting of the minimum pressure
proceed in the following way (fig. 25/a)
– Connect the differential manometer as
shown in fig. 24/b.
– Remove the plastic cap of the modula-
tor (1).
– Place the D.H.W. potentiometer knob on
the maximum value.
– Start the boiler and open the hot water
cock.
– Using a 9 wrench turn the nut (3) to find
the maximum pressure as shown in
Table 4: to reduce the pressure turn the
nut anti-clockwise, to increase the pres-
sure turn the nut clockwise.
– Turn off and turn on the boiler a few
times whilst keeping the hot water cock
constantly open to verify that the pressu-
re corresponds to the values given in
Table 4.
After having set the maximum pressure,
for the setting of the minimum pressure
proceed in the following way (fig. 25/a)
– Disconnect the electricity of the modula-
tor.
– With the D.H.W. potentiometer knob on
the maximum value, the hot water cock
open and the burner alight, using a 7
wrench turn the nut (2) to find the mini-
mum pressure value as shown in Table
4 to decrease the pressure turn the nut
anti-clockwise and to increase the pres-
sure turn the nut clockwise.
– Turn on and turn off the burner a few
times whilst keeping the hot water
cock constantly open and verify that
the pressure corresponds to the
values of Table 4.
– Reconnect the electric supply of the
modulator.
– Replace the plastic cap (1).
4.3 REGULATION OF HEATING POWER
To regulate the heating power, modifying
the factory settings whose power value is
around 16 kW, it is necessary to work with
a screwdriver on the trimmer of the hea-
ting power (10, fig. 21).
To increase the operating pressure turn
the trimmer in a clockwise direction, to
decrease the pressure turn the trimmer in
an anti-clockwise direction.
To facilitate the search for the adjusting of
the heat output see the pressure/heat out-
put diagrams for natural gas (methane)
and butane or propane gas are available
(fig. 26).
3
2
1
Fig. 25
KEY
1 Plastic cap
2 Minimum pressure
adjusting screws
3 Maximum pressure
adjusting nut
Fig. 25/a
KEY
1 Plastic cap
2 Minimum pressure
adjusting nut
3 Maximum pressure
adjusting nut
11
10
9
8
7
6
5
4
3
2
1
8,1 (7.000) 11,6 (10.000) 17,4 (15.000) 23,2 (20.000)
POTENZA TERMICA kW (kcal/h)
PRESSIONE UGELLO mbar
29,0 (25.000)
12
25 30
Fig. 26/a
P essu e/heat output diag am fo natu al gas (methane)
HEAT OUTPUT kW (kcal/h)
NOZZLE PRESSURE (mbar)

102
4.4 CONVERSION
TO ANOTHER GAS
For the functioning with butane (G30) or
propane (G31) gas, a kit with that needed
for the conversion is supplied.
To convert from one gas to another carry
out the following operations (fig. 27)
– Close the gas cock.
– Undo the burner group
– Replace the main nozzles (5) supplied in
kit, and placing the copper washer (4); to
carry out this operation use a ø 7 wrench.
– Insert the bridge of the “GPL-MET” con-
nector of the electronic panel onto the
“GPL” position (11 fig. 21).
– For the setting of the values of the maxi-
mum gas pressure and the minimum fol-
low the indications as specified in point
4.2. Once the ope ating p essu e chan-
ges have been ca ied out seal the
egulato s.
– The supply pressure must never be
greater than 50 mbar.
– Once the operations have been finished
cover, with the label supplied, the gas
pre-setting data on the data tag.
NOTE: Afte assembly the sealing capa-
city of all the gas connections must be
tested, using soapy wate and special
p oducts, and avoiding the use of naked
flames. The conve sion must be ca ied
out only by autho ised pe sonnel.
4.5 DISASSEMBLY
OF EXPANSION VESSEL
For disassemble the expansion vessel pro-
ceed in the following way
– Make sure that the boiler has been emp-
tied of water
– Unscrew the union that connects the
expansion vessel and the screw that
release it from its bracket.
Before beginning to fill the system, make
sure that the expansion vessel is pre-filled
to a pressure of 0.8 ÷ 1 bar.
4.6 REMOVAL OF
OUTER CASING
For easy maintenance of the boiler it is pos-
sible to completely dismantle the casing fol-
lowing these simple instructions (fig. 28)
– Pull the front panel (5) fixed with pin clut-
ches forward.
– Unscrew the two screws that fix the con-
trol panel to the casing.
– Remove the side panel (6) by unscrewing
the two screws that fix it to the upper
bracket (7) and to the support of the
control panel. Push upwards to free it
from the notches in the right side.
– Unscrew the four lower screws that fix
the sides to the support of the control
panel and the two screws that fix it to
the upper bracket (7). Push the sides (3)
20
15
10
5
8,1 (7.000) 11,6 (10.000) 17,4 (15.000) 23,2 (20.000)
POTENZA TERMICA kW (kcal/h)
PRESSIONE UGELLO mbar
25
30
0
29,0 (25.000)
25 30
35
20
15
10
5
8,1 (7.000) 11,6 (10.000) 17,4 (15.000) 23,2 (20.000)
POTENZA TERMICA kW (kcal/h)
PRESSIONE UGELLO mbar
25
30
0
29,0 (25.000)
25 30
P essu e/heat output diag am fo butane gas (G30)
P essu e/heat output diag am fo p opane gas (G31)
Fig. 26/b
Fig. 26/c
4
1
2
5
6
7
3
Fig. 27
KEY
1 Burner manifold
2 Extension 1/2 ”
3 Lock nut 1/2 ”
4 Washer ø 6,1
5 Nozzle M6
6 Protection
7 Burners
HEAT OUTPUT kW (kcal/h)
NOZZLE PRESSURE (mbar)
HEAT OUTPUT kW (kcal/h)
NOZZLE PRESSURE (mbar)

103
and (4) upwards freeing them from the
notches in the frame (2).
4.7 CLEANING AND MAINTENANCE
Carry out the cleaning of the generator in
the following way
– Remove the electricity supply to the boi-
ler and close the gas supply cock.
– Dismantle the casing as described in
point 4.6.
– Dismantle the burner - gas manifold
group (fig. 27).
– To clean direct a stream of air towards
the inner part of the burner to blow out
any dust that has accumulated.
– Then clean the heat exchanger removing
dust and combustion deposits.
– In cleaning the heat exchanger and that
of the burner, chemical products or steel
brushes must never be used.
– Make sure that the top perforated part
of the burners is free of encrustations.
– During the assembly and disassembly of
the burner it is recommended that
attention be paid to the ignition and
detection electrodes.
– Reassemble the parts removed from the
boiler, observing the succession of the
phases.
– Check the functioning of the main burner.
– After the assembly all the gas connec-
tions must be checked for the seal, using
soapy water or specific products, avoi-
ding the use of naked flames.
The p og ammed maintenance of the
gene ato is ca ied out annually.
4.7.1 Chimney sweep
function
To carry out the verification of combustion
in the boiler, turn the selector and stop on
the position ( ) until the yellow led ( )
starts to flash intermittently (fig. 29).
From that moment the boiler will start
functioning in heating mode at the maxi-
mum power (20,000 - 25,000 kcal/ h),
with switching off at 80°C and restarting
at 70°C.
Before activating the chimney sweep func-
tion make sure that the radiator valves or
eventual zone valves are open.
The test may be carried out also during hot
water functioning.
To do so it is enough, after having activated
the chimney sweep function, to take some
hot water from one or more cocks; after a
few minutes the request of the D.H.W. sen-
sor is activated and it automatically swit-
ches on the led ( ).
Even in this condition the boiler functions at
the maximum temperature always with the
primary controlled between 80°C and 70°C.
During the entire duration of the testing the
hot water cocks must remain open.
After verifying the combustion the boiler
should be switched off by placing the selec-
tor on the OFF position; then return the
selector to the desired function.
ATTENTION:
Afte about 15 minutes the chimney
sweep function automatically deactivates.
2
3
1
4
1
15 6
7
Fig. 28
KEY
1 Screws
2 Frame
3 Left side
4 Right side
5 Front panel
6 Side panel
7 Upper bracket
SPIA GIALLA INTERMITTENTE
Fig. 29
FLASHING YELLOW LED

BOILER IGNITION (fig. 1)
Open the gas cock, lower the cover of the
control and activate the boiler by turning
the selector knob to the summer ( ).
position.
When the green led ( ) lights up, electri-
city is present in the boiler.
– With the selector knob on the summer
( ) position, the boiler works to take
the temperature of the hot water to the
fixed value.
– With the selector knob on the winter
position ( ) the boiler, once it has rea-
ched the temperature set on the heating
potentiometer, will begin to modulate auto-
matically in order to supply the system with
the effective power requested.
The boiler will stop functioning if the room
stat or “Logica Remote Control” intercede.
TEMPERATURES
ADJUSTMENT (fig. 2)
The panel of the red leds is graduated from
40÷80 °C and shows the temperature in
the D.H.W. tank when the two service leds
( ) are off; it shows the temperature
of the primary circuit when one of the two
leds is lit up.
– Regulation of the D.H.W. temperature is
carried out by acting on the hot-water
service knob ( ). The set temperature
is displayed on the scale of the red leds
from 40 ÷80 °C.
– Regulation of the C.H. temperature is
carried out by acting on the heating knob
( ). The set temperature is shown on
the scale of the red leds from 40÷80 °C.
To guarantee an always optimal output
from the generator it is advised not to
go below a minimum operating tempera-
ture of 50 °C.
TURNING OFF BOILER (fig. 1)
To turn the boiler off place the selector
knob on the OFF position.
IF THE BOILER IS NOT GOING TO BE USED
FOR A LENGTHY PERIOD IT IS ADVISED TO
TURN OFF THE ELECTRICITY SUPPLY,
CLOSE THE GAS COCK, AND IF LOW TEM-
PERATURES ARE FORESEEN, EMPTY THE
BOILER AND THE HYDRAULIC SYSTEM TO
AVOID BREAKAGE IN THE TUBES DUE TO
THE FREEZING OF THE WATER.
USER INSTRUCTIONS
ATTENTION
– In case of the break down and/or improper functioning of the apparatus, deactivate it, refraining from any attempts
to repair it or directly intervene. Call exclusively the authorised technical staff.
– The installation of the boiler and any other assistance or maintenance must be carried out by qualified personnel. It is
absolutely prohibited to tamper with the sealed devices.
– It is absolutely prohibited to obstruct the airflow grilles and the aeration opening of the room where the apparatus is
installed.
LIGHTING AND OPERATION
REMOTE
CONTROL
R
APRE
SPIA VERDE
Fig. 1
GREEN LED
OPEN
104