Sime SOLO 20 OF, SOLO 30 OF, SOLO 40 OF, SOLO 40 BF, DUETTO 20 OFi Installer's Instructions
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65
CONTENTS
1 DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
4 USE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
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.
– Check that the flue pipe for the outlet of the products of the combustion is unobstructed.
– Make sure that any shutoff valves are open.
– Make sure that the system is charged with water and is thoroughly vented.
– Check that the circulator is not blocked.
INSTALLER INSTRUCTIONS
SOLO - DUETTO
ENGLISH
1.1 INTRODUCTION
One of the features of the cast iron
thermal group with the integrated gasoil burner is its functional silence and it
has been designed in accordance with
the european directives CEE 92/42.
The perfectly balanced combustion
and the high yield allows it to
economise considerably the operating
costs.
The instructions relative to the following models are indicated in the present manual:
– “SOLO 20-30-40 OF/30-40 BF”
for heating only
– “DUETTO 20-30-40 OFi/30-40
BFi” for heating and hot water production with instant tank
“BF-BFi” versions are boilers with airtight burners. The instructions given in
this manual are provided to ensure
proper installation and perfect operation of the appliance and should be
strictly followed.
66
1 DESCRIPTION OF THE BOILER
1.2 DIMENSIONS
Fig. 1
SOLO 20 OF SOLO 30-40 OF/BF DUETTO 20-30-40 OFi/30-40 BFi
P
Depth
650 750 (30 OF/BF) - 850 (40 OF/BF) 650 (20 OFi) - 750 (30 OFi/BFi) - 850 (40 OFi/BFi)
M
C.H. flow
G 1” (UNI ISO 228/1) G 1” (UNI ISO 228/1) G 1” (UNI ISO 228/1)
R
C.H. return
G 1” (UNI ISO 228/1) G 1” (UNI ISO 228/1) G 1” (UNI ISO 228/1)
C1
System load
G 1/2” (UNI ISO 228/1) G 1/2” (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)
S
Boiler drain
G 1/2” (UNI ISO 228/1) G 1/2” (UNI ISO 228/1) G 1/2” (UNI ISO 228/1)
“SOLO 20-30-40 OF/DUETTO 20-30-40 OFi” version
“SOLO 30-40 BF/DUETTO 30-40 BFi” version
67
1.3 TECHNICAL FEATURES
SOLO 20 OF SOLO 30 OF/BF SOLO 40 OF/BF
Heat output minimum-maximum* kW 18.9-23.5 (20.7) 24.5-31.3 (27.5) 32.5-40.0 (35.2)
kcal/h 16,300-20,200 21,100-26,900 28,000-34,400
kcal/h (17,800) (23,700) (30,300)
Heat input minimum-maximum* kW 21.1-26.2 (23.0) 27.2-34.8 (30.6) 36.0-44.3 (39.0)
kcal/h 18,100-22,500 23,400-29,900 31,000-38,100
kcal/h (19,800) (26,300) (33,500)
Typ e B
23 B23 B23
Elements n° 3 4 5
Maximum water head bar 4 4 4
Water content l18 22 26
Expansion vessel
Water content/Preloading pressure l/bar 10/1 10/1 10/1
Loss of head smoke
Minimum-Maximum mbar 0.05-0.11 0.12-0.16 0.15-0.21
Combustion chamber pressure ** mbar – 0.02 – 0.02 – 0.05
Suggested chimney depression **
Minimum-Maximum mbar 0.07-0.13 0.14-0.18 0.17-0.23
Smoke temperature minimum-max. °C 160-185 160-185 160-185
Smoke flow minimum-max.* m
3
n/h 24.0-31.6 (26.4) 32.4-41.4 (35.9) 42.9-52.8 (46.3)
CO
2 % 12.5 12.5 12.5
Maximum temperature °C 95 95 95
Power consumption “OF/BF” W 220 200/230 180/210
Adjustment range heating °C 45÷85 45÷85 45÷85
D.H.W. production
D.H.W. flow rate EN 625 l/min – – –
Contin. D.H.W. flow rate ∆t 30°C l/h – – –
Minimum D.H.W. flow rate l/min – – –
D.H.W. tank maximum water head bar – – –
Gas-oil burner ***
Burner nozzle * 0.50-0.60 60°W 0.60-0.75 60°W 0.75-0.85 60°W
(0,50 60°W) (0.65 60°W) (0.85 60°W)
Pump pressure min.-max. * bar 12-12 (14) 14-14 (14) 14-14 (12)
Shutter position min.-max. for “OF” vers.* 3.2-3.7 (3.4) 3.0-5.2 (4.1) 5.0-6.2 (5.3)
Shutter position min.-max. for “BF” vers.*:
coaxial exhaust ø 80/125 – 1.7-4.1 (4.0) 1.8-3.6 (2.4)
separate flues ø 80 – 1,0-2,0 –
Diaphragm position for “BF” vers.*:
coaxial exhaust ø 80/125 – D-G (D) –
separate flues ø 80 – M –
Weight kg 112 137 162
* The date shown between the brackets refer to the factory settings
** For “OF” versions only
*** After changing the calibration values of the burner, always check the C0
2 values.
68
DUETTO 20 OFi DUETTO 30 OFi/BFi DUETTO 40 OFi/BFi
Heat output minimum-maximum * kW 23.5 (20.7) 31.3 (27.5) 40.0 (35.2)
kcal/h 20,200 26,900 34,400
kcal/h (17,800) (23,700) (30,300)
Heat input minimum-maximum* kW 26.2 (23.0) 34.8 (30.6) 44.3 (39.0)
kcal/h 22,500 29,900 38,100
kcal/h (19,800) (26,300) (33,500)
Typ e B
23 B23 B23
Elements n° 3 4 5
Maximum water head bar 4 4 4
Water content l18 22 26
Expansion vessel
Water content/Preloading pressure l/bar 10/1 10/1 10/1
Loss of head smoke
Minimum-Maximum mbar 0.11 0.16 0.21
Combustion chamber pressure ** mbar – 0.02 – 0.02 – 0.05
Suggested chimney depression **
Minimum-Maximum mbar 0.13 0.18 0.23
Smoke temperature minimum-max. °C 185 185 185
Smoke flow minimum-max. * m
3
n/h 31.6 (26.4) 41.4 (35.9) 52.8 (46.3)
CO
2 % 12.5 12.5 12.5
Maximum temperature °C 95 95 95
Power consumption “OFi/BFi) W 215 200/230 180/210
Adjustment range heating °C 45÷85 45÷85 45÷85
D.H.W. production
D.H.W. flow rate EN 625 l/min 9.7 (8.7) 12.5 (11.0) 16.0 (14.2)
Contin. D.H.W. flow rate ∆t 30°C l/h 670 (590) 890 (780) 1,140 (1,000)
Minimum D.H.W. flow rate l/min 2.5 2.5 2.5
D.H.W. tank maximum water head bar 6 6 6
Gas-oil burner ***
Burner nozzle * 0.60 60°W 0.75 60°W 0.85 60°W
(0.50 60°W) (0.65 60°W) (0.85 60°W)
Pump pressure min.-max. * bar 12 (14) 14 (14) 14 (12)
Shutter position min.-max. for “OFi” vers. * 3.7 (3.4) 5.2 (4.1) 6.2 (5.3)
Shutter position min.-max. for “BFi” vers. *:
coaxial exhaust ø 80/125 – 4.1 (4.0) 3.6 (2.4)
separate flues ø 80 – 1,0-2,0 –
Diaphragm position for “BFi” vers. *:
coaxial exhaust ø 80/125 – G (D) –
separate flues ø 80 – M –
Weight kg 151 176 201
* The date shown between the brackets refer to the factory settings
** For “OFi” versions only
*** After changing the calibration values of the burner, always check the C0
2 values.
69
1
2
3
4
5
8
6
7
Fig. 2
1.4 MAIN COMPONENTS
1.4.1 “SOLO 20-30-40 OF/30-40 BF” version
2
10
1
11
9
12
11
6
7
8
5
4
3
Fig. 2/a
1.4.2 “DUETTO 20-30-40 OFi/30-40 BFi” version
KEY
1 Gas-oil burner
2 Bulb housing sheath
3 Control panel
4 Filling
5 Water switch
6 Hydrometer
7 System pump
8 Air intake for airtight burner
(“BF” versions)
KEY
1 Gas-oil burner
2 Bulb housing sheath
3 Control panel
4 Instant tank
5 Filling
6 Tank pump
7 Water switch
8 Hydrometer
9 System pump
10 Air intake for airtight burner
(“BFi” versions)
11 Control valve
12 Air vent valve
70
Fig. 3
1.5 FUNCTIONAL DIAGRAM
1.5.1 “SOLO 20-30-40 OF/30-40 BF” version
Fig. 3/a
1.5.2 “DUETTO 20-30-40 OFi/30-40 BFi” version
KEY
1 Boiler body
2 Filling
3 Safety valve
4 Air relief valve
5 Expansion vessel
6 Gas-oil burner
7 System pump
8 Hydrometer
9 Boiler drainer cock
10 Water switch
KEY
1 Boiler body
2 Filling
3 Safety valve
4 Air relief valve
5 Expansion vessel
6 Gas-oil burner
7 System pump
8 Hydrometer
9 Boiler drainer cock
10 C.H. water switch
11
D.H.W.
water switch
12 Instant tank
13 Control valve
14 Air vent valve
15 Tank pump
2.1 BOILER ROOM
The boilers with a rating of more than
35 kW must be equipped with a technical room whose dimensions and
requirements correspond to the current standards and regulations.
The minimum distance between the
walls of the room and the boiler must
not be less than 0.60 m., while the minimum height between the top of the
boiler and the ceiling must be at least 1
m. which can be reduced to 0.50 m.
for boilers with incorporated heaters
(however the minimum height of the
boiler room must not be less than 2,5
m). The boilers with a rating of less
than 35 kW can be installed only in
perfectly air-vented rooms. To circulate
air in the room, air vents must be
made on the outside walls which satisfy
the following requirements:
– Have a total surface area of at least
6 cm
2
for each installed Kw of thermal capacity and however not less
than 100 cm
2
.
– To be situated as close as possible
to the floor, unobstructable and protected by a grate which does not
reduce the air passage area.
2.2 CONNECTING UP SYSTEM
Before proceeding to connect up the
boiler, you are recommended to make
the water circulate in the piping in
order to eliminate any foreign bodies
that might be detrimental to the operating efficiency of the appliance. For
connecting up the pipes, make sure to
follow the indications illustrated in fig.
1. The connections should be easy to
disconnect using pipe unions with orientable connections.
The shutoff valve must be
connected to a suitable flow
system and return pipes
2.2.1 System filling
The boiler and the relative system
must be filled operating on the bearing
tap and the pressure of cold charging
the system must be included between
1 - 1.2 bar. During filling the main
switch should be left open.
Filling must be done slowly so as to
allow any air bubbles to be bled off
through the provided air vents. This
operation can be made easy by positioning horizontally the incision of the
block screw of the shutoff valve.
Upon completing the filling, put the
screw back to its original position. At
the end of the operation make sure
that the tap is closed (fig. 4).
2.2.2 D.H.W. production on
“DUETTO OFi/BFi”
version
To adjust water flow use the water
pressure gauge flow regulator (fig. 5):
- Turn clockwise and the regulator
reduces water supply consequently
increasing the relevant temperature.
- Turn counter-clockwise and the
regulator increases water supply
consequently reducing the relevant
temperature.
2.2.3 Characteristics of feedwater
To prevent lime scale and damage to
the tap water exchanger, the water
supplied 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 systems (with high
contents of feedwater).
– Frequent addition of makeup water
into the system.
– In case it is necessary to empty the
system either partially or totally.
2.3 SMOKE EXHAUST
2.3.1 Connecting up flue
The flue is of fundamental importance
for the proper operation of the boiler;
if not installed in compliance with the
standards, starting the boiler will be
difficult and there will be a consequent
formation of soot, condensation and
encrustation.
A flue therefore must satisfy the following requirements:
– be constructed with waterproof
materials and resistant to smoke
temperature and condensate;
– be of adequate mechanical resilience
and of low heat conductivity;
– be perfectly sealed to prevent cool-
ing of the flue itself:
– be as vertical as possible; the termi-
nal section of the flue must be fitted
with a static exhaust device that
ensures constant and efficient
extraction of products generated by
combustion;
–
to prevent the wind from creating
pressure zones around the chimney top greater than the uplift
force of combustion gases, the
exhaust outlet should be at least
0.4 m higher than structures adjacent to the stack (including the roof
top) within 8 m;
– have a diameter that is not inferior
to that of the boiler union: square or
rectangular-section flues should
have an internal section 10%
greater than that of the boiler union;
– the useful section of the flue must
conform to the following formula:
S resulting section in cm
2
71
2 INSTALLATION
P
S=K
√H
OPEN
REGOLATORE
DI PORTATA
Fig. 5
FLOW
REGULATOR
Fig. 4
72
K reduction coefficient for liquid
fuels: 0.024
P boiler input in Kcal/h
H
height of the flue in meters mea-
sured from the flame axis to the
flue outlet into the atmosphere.
When dimensioning the flue, the
effective height of the flue in
meters must be considered,
measured from the flame axis to
the top of the flue, reduced by:
– 0.50 m for each change of
direction of the connection
union between boiler and flue;
– 1.00 for each horizontal
metre of the union itself.
Our boilers are the B
23 type and do
not need any particular connections
other than the one to the flue as
described above.
2.3.2 Smoke exhaust with
ø 80/125 coaxial flue
“BF-BFi” version boilers are set to be
connected to ø 80/125 stainless
steel coaxial flues that can be adjusted to the most suitable direction
for room requirements (fig. 6).
The maximum acceptable length of
the flue must not be over 7.0 equi-
valent meters.
Load losses in meters for each single accessory to be used in the
exhaust configuration are indicated
in Table A.
Only use original SIME accessories
and make sure that connections are
correct as indicated in the instructions supplied with the accessories.
2.3.3 Exhaust with separate
flues (ø 80)
“SOLO 30 BF -DUETTO 30 BFi” boi-
1
2
3
4
2
5
6
7
7
3
3
ø 80/125
min. 715
Fig. 6
KEY
1 Stainless steel coaxial flue L. 886 code 8096220
2 a Stainless steel extension L. 1000 code 8096121
2 b Stainless steel extension L. 500 code 8096120
3 a 90° stainless steel curve code 8095820
3 b 45° stainless steel curve code 8095920
4 Stainless steel vertical condensation recovery L. 135 code 8092820
5 Tile with hinge code 8091300
6 Roof outlet terminal L. 1063 code 8091203
7 Kit code 8098810
TABLE A
Load loss (mt)
90° stainless steel curve 1,80
45° stainless steel curve 0,90
Stainless steel extension L. 1000 1,00
Stainless steel extension L. 500 0,50
Roof outlet terminal L. 1063 1,00
Stainless steel coaxial flue L. 886 0,70
Stainless steel vertical condensation recovery L. 135 0,70
WARNING:
The maximum acceptable length of the flue must not be over 7.0 equivalent meters.
Always use the condensation recovery (4) in outlets with vertical exhaust.
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