CONTENTS
1 DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4 USE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
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
AQUA OF/BF
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:
–
“AQUA 30-40 OF” for heating and
hot water production with accumulative tank.
–
“AQUA 30-40 BF” for heating and
hot water production with accumulative tank and airtight combustion
burner.
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
550
1430
A
850
70
215
1230
340825
515
12 5
200
90
107 5
1230
825
515
12 5
200
90
107 5
215
70
340
U
C
E
U
C
E
75
75
S1
M
R
S2
S1
M
R
S2
ø80/125
ø130
Versione “BF”
Versione “OF”
=
=
=
=
Fig. 1
KEY
M C.H. flow G 1” (UNI-ISO 228/1)
R C.H. return G 1” (UNI-ISO 228/1)
U D.H.W. outlet G 3/4” (UNI-ISO 228/1)
E D.H.W. inlet G 3/4” (UNI-ISO 228/1)
C Recirculation G 3/4” (UNI-ISO 228/1)
S Boiler drain
S1 System safety valve drain
S2 Boiler safety valve drain
550
ø80/125
ø130
Versione “BF”
Versione “OF”
850
A
1430
69 231,5
65
65
879
288
239
14 5
16 5
14 516 5
65
65
879
239
288
512,5
512,5
69
231,5
S2
U
C
E
S1
M
R
S
S2
U
C
E
S1
M
R
S
AQUA 30 BF AQUA 40 BF
Amm 75 175
AQUA 30 - 40 OF/BF
AQUA 30 - 40 OF/BF INOX
“BF” version “OF” version
“BF” version “OF” version
67
1.3 TECHNICAL FEATURES
AQUA 30 OF/BF AQUA 40 OF/BF AQUA 30 OF/BF INOX AQUA 40 OF/BF INOX
Heat output * kW 31.3 (27.5) 40.0 (35.2) 31.3 (27.5) 40.0 (35.2)
kcal/h 26,900 (23,700) 34,400 (30,300) 26,900 (23,700) 34,400 (30,300)
Heat input * kW 34.8 (30.6) 44.3 (39.0) 34.8 (30.6) 44.3 (39.0)
kcal/h 29,900 (26,300) 38,100 (33,500) 29,900 (26,300) 38,100 (33,500)
Type B
23 B23 B23 B23
Elements n° 4 5 4 5
Maximum water head bar 4 4 4 4
Water content l 28 33 24.5 30.5
Expansion vessel
Water content/Preloading pressure l/bar 10/1 12/1 10/1 12/1
Loss of head smoke mbar 0.16 0.21 0.16 0.21
Combustion chamber pressure ** mbar – 0.02 – 0.05 – 0.02 – 0.05
Suggested chimney depression ** mbar 0.18 0.23 0.18 0.23
Smoke temperature ° C 185 18 5 18 5 185
Smoke flow * m
3
n/h 41.4 (35.9) 52.8 (46.3) 41.4 (35.9) 52.8 (46.3)
CO
2 % 12.5 12.5 12.5 12.5
Maximum temperature °C 95 95 95 95
Power consumption “OF/BF” W 200/230 180/210 200/230 180/210
Adjustment range heating °C 45÷85 45÷85 45÷85 45÷85
Adjustment range D.H.W. °C 30÷60 30÷60 30÷60 30÷60
D.H.W. production
Tank capacity l 120 120 110 110
D.H.W. flow rate EN 625 l/min 20.9 20.9 20.9 20.9
Contin. D.H.W. flow rate ∆t 30°C * l/h 840 (790) 840 830 (780) 830
D.H.W. expansion vessel l 4 4 4 4
D.H.W. tank maximum water head bar 7 7 7 7
Gas-oil burner ***
Burner nozzle * 0.75 60°W 0.85 60°W 0.75 60°W 0.85 60°W
(0.65 60°W) (0.85 60°W) (0.65 60°W) (0.85 60°W)
Pump pressure * bar 14 (14) 14 (12) 14 (14) 14 (12)
Shutter regulator position for “OF” version * 5.2 (4.1) 6.2 (5.3) 5.2 (4.1) 6.2 (5.3)
Shutter regulator position for “BF” version * 4.1 (4.0) 3.6 (2.4) 4.1 (4.0) 3.6 (2.4)
Diaphragm position for “BF” version * G (D)
_
G (D)
_
Weight kg 226 254 220 247
* The date shown between the brackets refer to the factory settings
** For “OF” versions only
*** Calibration values with the coaxial drain terminal code 8096220 installed
68
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
5
17
18
19
20
Fig. 2
1.4 MAIN COMPONENTS
1.4.1 “AQUA 30-40 OF/BF” version
KEY
1 Boiler drainer cock
2 Tank drainer cock
3 120 litre tank
4 Tank pump
5 Control valve
6 Gas-oil burner
7 Hublot
8 Bulb housing sheath
9 Control panel
10 Expansion vessel
11 System safety valve 3 BAR
12 Water switch
13 Air intake for airtight burner
(“BF” versions)
14 Hydrometer
15 System pump
17 Filling
18 Tank safety valve 7 BAR
19 Tank expansion vessel
20 Magnesium anode
69
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
5
Fig. 2/a
1.4.2 “AQUA 30-40 OF/BF INOX” version
16
KEY
1 Gas-oil burner
2 Hublot
3 Filling
4 Tank pump
5 Control valve
6 Tank expansion vessel
7 Control panel
8 Expansion vessel
9 110 litre tank in inox
10 Bulb housing sheath
11 Water switch
12 System safety valve 3 BAR
13 Air intake for airtight burner
(“BF” versions)
14 Hydrometer
15 System pump
16 Magnesium anode
70
1
2
34
5
6
7
8
9
8
14
10
11
12
19
18
17
16
15
Fig. 3
1.5 FUNCTIONAL DIAGRAM
1.5.1 “AQUA 30-40 OF/Bf” version
Fig. 3/a
1.5.2 “AQUA 30-40 OF/BF INOX” version
KEY
1 System safety valve
2 System expansion vessel
3 Boiler body
4 Air relief valve
5 Water switch
6 Hydrometer
7 System pump
8 Control valve
9 Gas-oil burner
10 Filling
11 Tank safety valve
12 Tank expansion vessel
14 Tank pump
15 Tank drainer cock
16 Boiler drainer cock
17 Magnesium anode
18 D.H.W. probe
19 120 litre tank
KEY
1 Boiler body
2 Hydrometer
3 Air relief valve
4 System pump
5 Tank pump
6 Control valve
7 Tank expansion vessel
8 Tank safety valve
9 Magnesium anode
10 Tank drainer cock
11 System expansion vessel
12 Boiler drainer cock
13 Filling
14 System safety valve
15 Gas-oil burner
16 110 litre tank
17 Water switch
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
In order that the boiler be capable of
supplying treated water, all the air in
the boiler’s serpentine must be bled
off at the first ignition. This operation
is made easy by positioning horizontally the incision of the block screw of
the shutoff valve (5 fig. 2-2/a). After
all the air has been bled off, put the
screw back to its original position.
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:
71
2 INSTALLATION
Fig. 4
OPEN
S resulting section in cm
2
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” 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 equivalent 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.
2.4 FUEL ADDUCTION
The fuel can be fed into the thermal
group sideways, the ducts must be
passed through the aperture on the
72
P
S=K
√H
1
2
3
4
2
5
6
7
7
3
3
ø 80/125
min. 715
KEY
1 Stainless steel coaxial flue L. 886 code 8096220
2a Stainless steel extension L. 1000 code 8096121
2b Stainless steel extension L. 500 code 8096120
3a 90° stainless steel curve MF code 8095820
3b 45° stainless steel curve MF 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
Fig. 6
TABLE A
Load loss (mt)
90° stainless steel curve MF 1,80
45° stainless steel curve MF 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.
right or left hand side of the shell for
connection to the pump (fig. 7 - 7/a).
Important
– Make sure, before turning on the
boiler, that the return tube is free.
An excessive counter-pressure
would break the pump seal.
– Make sure that the tubes are
sealed.
– The maximum depression of 0.4 bar
(300 mmHg) (see
Table 1
) must not
be exceeded. Gas is freed from the
fuel above that value and can cause
cavitation of the pump.
– It’s advisable to bring the return
tube in the depression systems up
to the same height of the intake
tube. In this case the foot valve is
unnecessary.
If instead the return tube arrives
above the fuel level, the foot valve is
indispensable.
Starting the pump
Turn on the burner to start the pump
and check the flame ignition.
If a “lock out” occurs before fuel
arrival, wait for at least 20 seconds
then press the burner release button
“RESET” and wait for the whole startup operation to repeat until the flame
lights up.
2.5 BURNER ADJUSTMENTS
Each unit is shipped with a burner unit
equipped with a nozzle and calibrated
at the factory; it is recommended,
however, that the settings listed under
point 1.3 be checked, with reference
to atmospheric pressure at sea level.
If it is necessary to adjust the burner
differently from the factory settings,
this should be done by authorised personnel following the instructions provided below.
Remove the shell door to access the
burner unit’s controls.
2.5.1 Air lock adjustment
To adjust the air lock, loosen the screw
(1 fig. 8) and slide the graduated scale
(2 fig. 8) indicating the position air lock
position.
The values for adjustment of each unit
are given in point 1.3.
2.5.2 Pump pressure adjustment
To adjust gas-oil pressure, turn the
screw (3 fig. 8/a) and check pressure
with a pressure gauche connected to
the intake (2 fig. 8/a), making sure
pressure corresponds to the value
given under point 1.3.
73
H max 4 mH
H
1
2
3
4
5
6
7
8
10 99
Fig. 7
Fig. 7/a
H L (meters)
meters øi tube øi tube
8 mm 10 mm
035100
0,5 30 100
125100
1, 5 2 0 9 0
215 70
38 30
3,5 6 20
CONNECTIONS
1 Vacuometer attachment
2 Pressure regulator
3 Manometer attachment
4 By-pass screw
5 Back-flow flexible pipe
(included in supply)
6 Suction flexible pipe
(included in supply)
7 Auxiliary pressure intake
8Valve
9 Racor 3/8” (included in supply)
10 Fuel feed line filter
(included in supply)
ATTENTION:
- loosen the pump joints (5-6) before pointing the flexible pipes for
bringing them out from the prefixed opening on the right/left hand
side of the shell. Afterwards tighten the joints to the pump.
- The pump is prearranged for the double-tube function. Remove the
by-pass screw (4) for single tube function.
H = Difference in level
L = Maximum length
of the intake tube
TABLE 1
2.6 HEATER UNIT
In “AQUA 30 OF/BF” and “AQUA 30
OF/BF INOX” models, the heater unit
comes on with the consensus of the
burner, after a delay of a maximum of
90 seconds required to bring fuel in
the nozzle holder area up to a temperature of 65°C.
Once this temperature has been
reached, the thermostat, which is
located above the preheater (1 fig.
14/b), will give consensus for the
burner to start. The heater will remain
on for as long as the burner stays on
and go off when the burne goes off.
NOTE:
“AQUA 40 OF/BF” and “AQUA
40 OF/BF INOX” model have no
heater unit, as it is not required.
2.7 ELECTRICAL CONNECTION
The boiler is supplied with an electric
cable and the electric power supply to
the boiler must be 230V-50Hz singlephase through a fused main switch.
The stat cable, whose installation is
compulsory for obtaining a better
adjustment of the room temperature,
must be connected as shown in fig. 99/a.
NOTE:
Device must be connected to an efficient earthing system.
SIME declines all responsibility for
injury or damage to persons
resulting from the failure to provide for proper earthing of the
appliance.
Always turn off the power supply
before doing any work on the electrical panel.
74
1
2
5
6
7
RESET
TWICE
ONLY
12
1
2
3
bar
KEY
1 Gas-oil pump
2 Pressure gauche intake
3 Pressure adjustment screw
Fig. 8
Fig. 8/a
75
2.7.1 “AQUA OF/BF - AQUA OF/BF INOX” wiring diagram
Fig. 9
KEY
IG Main switch
TB Tank stat
R Relay
TL Limit stat
TS Safety stat
EI Summer/Winter switch
TC Boiler stat
SPA Water pressure gauge triggered light
SA Power on light
SB Burner “lock out” warning light
PA Water switch
PI C.H. pump
PB Tank pump
B Gas-oil burner
TA Room stat
OP Timer programmer (optional)
TI Anti thermal inertia thermostat
NOTE:
When connecting the room stat (TA) remove the
bridge between terminals 20-21
When connecting the Timer Programmer (OP)
remove the bridge between terminals 30-31.
76
2.7.2 “AQUA OF/BF - AQUA OF/BF INOX” wiring diagram with optional RVA 43.222 unit
Fig. 9/a
KEY
IG Main switch
TB Tank stat
R Relay
TL Limit stat
TS Safety stat
EI Summer/Winter switch
TC Boiler stat
SPA Water pressure gauge triggered light
SA Power on light
SB Burner “lock out” warning light
PA Water switch
PI C.H. pump
PB Tank pump
B Gas-oil burner
TA Room stat
C RVA 43.222 control unit connectors (optional)
SS Type QAZ21 boiler immersion probe (optional)
SC Type QAZ21 boiler immersion probe (optional)
SE Outdoor temperature probe QAC31 (optional)
UA Type QAA70 room thermometer (optional)
TI Anti thermal inertia thermostat
NOTE: When connecting the RV 43 222 unit remove the
bridge between terminals 20-21 and remove the relay (R).
77
~
5 s
~
12 s
~
12 s0÷150 s 0÷150 s
2.7.3 “AQUA 30 OF/BF - AQUA 30 OF/BF INOX” functional diagram
Consensus for start-up
Heater stat
Heater
Motor
Ignition transform.
Gas-oil valve
Flame
Stop light
Normal Stopped due to failure to ignite
~
5 s
~
12 s
~
12 s
Consensus for start-up
Motor
Ignition transform.
Gas-oil valve
Flame
Stop light
2.7.4 “AQUA 40 OF/BF - AQUA 40 OF/BF INOX” functional diagram
Normal Stopped due to failure to ignite
78
3.1 COMBUSTION CHAMBER
DIMENSIONS
The combustion chamber is a direct
passage type and is conform to the EN
303-3 standard annex E. The dimensions are shown in fig. 10. An adequate protection panel is mounted on
the inside wall of the rear head of all
the models.
3.2 SYSTEM AVAILABLE HEAD
The head available for the heating
plant is shown as a function of the
flow in graph in fig. 11.
3.3 ANTI THERMAL
INERTIA THERMOSTAT
The purpose of the anti thermal inertia
thermostat (TI) is to restart the boiling
unit pump when the boiler reaches the
temperature of 90°C, discharging the
excess heat due to the thermal inertia
of the cast iron body towards the boiling unit. The circulator will automatically stop working as soon as the boiler
temperature falls below 90°C.
4.1 RVA 43.222 UNIT
(optional)
The control panel allows the use della
centralina RVA 43.222 supplied in kit
form upon request, complete with
mounting instructions (fig. 12).
Make the electric connection as
shown in point 2.7.
4.2 TANK MAINTENANCE
The preparation of hot treated water
is guaranteed by a heater in INOX AISI
316L, complete with magnesium
anode for protecting the heater and
inspection flange for control and
cleaning.
The magnesium anode (20 fig. 2 - 16
fig. 2/a) should be periodically controlled and substituted whenever
worn out.
3 CHARACTERISTICS
4 USE AND MAINTENANCE
L Volume
mm dm
3
AQUA 30 405 24,0
AQUA 40 505 30,5
Fig. 12
L
270
280
Fig. 10
0
200
1600
140012001000800600400
P OR TATA (l/h)
PREVALENZA RESIDUA (mbar)
500
400
10 0
200
300
AQUA - AQUA INOX - ESTELLE B INOX
1800
Fig. 11
FLOW RATE (l/h)
RESIDUAL HEAD (mbar)
REMOVE
79
4.4 DISASSEMBLY
OF OUTER CASING
The shell can be completely disassembled for an easy maintenance of the
boiler by following the numeric steps
shown in fig. 13.
4.5 DISASSEMBLY
OF EXPANSION VESSEL
The heating expansion tank is disassembled in the following manner:
– Make sure that the boiler has been
emptied of water.
– Unscrew the union which connects
the expansion tank.
– Remove the expansion tank.
Before filling up the system make sure
that the expansion tank is reloaded at
the pressure of 0.8 ÷ 1 bar.
3
8
4
1
2
7
5
6
7
8
3
9
4
1
6
5
2
Fig. 13
AQUA 30 - 40 OF/BF
AQUA 30 - 40 OF/BF INOX
4.6 BURNER MAINTENANCE
To dismantle the burner from the boiler
door, remove the nut (fig. 14).
–
To access the internal part of the
burner, remove the air lock unit
held in place by two screws to the
sides and remove the right hand
shell, which is held in place by four
screws, taking care not to damage
the O-ring seal. OR.
– To dismantle the nozzle holder and
heater unit, proceed as follows:
– open the cover, which is held in
place by a screw, and remove the
heater cables (1 fig. 14/a) protected by a heat resistant sheath;
remove the fairlead and pass the
cables through the hole.
– remove the two cables from the
ignition electrodes fastened in
place with a faston.
–
loosen the union (2 fig. 14/a) and
remove the four screws which fasten the collar (3 fig. 14/a) to the
burner.
– To dismantle the eater or thermo-
stat, refer to figure 14/b.
4.7 CLEANING
AND MAINTENANCE
Preventive maintenance and checking
of the efficient operation of the equipment and safety devices must be carried out at the end of each heating
season exclusively by the authorised
technical staff.
4.7.1 Cleaning smoke ducts
Use an adequate swab for cleaning
the smoke ducts of the boiler. After
cleaning, position the circulators in
their original position (fig. 15).
4.7.2 Cleaning combustion head
The combustion head is cleaned in the
following manner (fig. 16):
– Disconnect the high tension cables
from the electrodes.
– Unscrew the fixture screws of the
circulator support and remove it.
– Brush the propeller delicately (tur-
bulence disc).
– Carefully clean the photo-resistance
of eventual deposits of dirt deposited on its surface.
– Clean the remaining components of
the combustion head of eventual
deposits.
80
Fig. 14
2
1
3
Fig. 14/a
2
1
3
Fig. 14/b
RONDO' 3/4 OF
ESTELLE 3/4 OF
RONDO' 5/6 OF
ESTELLE 5/6 OF
Fig. 15
KEY
1 Control bow cables
2 Connection
3 Collar
KEY
1 Heater stat
2 Cap
3 Heater
81
– Upon completion re-assemble the
unit in the opposite way as
described above taking care to
respect the indicated measurements.
4.7.3 Substitution of nozzle
The nozzle should be substituted at
the beginning of every heating system
for guaranteeing the correct fuel flow
and a good spray efficiency.
The nozzle is substituted in the following manner:
– Disconnect the high tension cables
from the electrodes.
– Loosen the fixture screw (A fig. 16)
of the electrodes support and
remove it.
– Block the spray door using a n°19
spanner and unscrew the nozzle
with a n°16 spanner (fig. 17).
4.8 FAULT FINDING
There follow a list of some reasons
and the possible remedies for a series
of faults which could happen causing a
failure or an irregular function of the
appliance. A function fault, in most
cases, causes the “lock out” signal on
the control panel to turn on. When
this light turns on, the burner can only
function again after the reset button
has been pressed; once this has been
done and a regular ignition occurs, the
failure can be defined momentary and
not dangerous.
On the contrary, if the “lock out” persists, then the cause of the fault as
well as the remedy must be looked for
in the following faults:
The burner does not ignite
– Check the electric connections.
– Check the regular fuel flow, the
cleanness of the filters, of the nozzle
and air vent from the tube.
– Check the regular spark ignition and
the proper function of the burner.
The burner ignites regularly but the
flame goes out immediately
– Check the flame detection, the air
calibration and the function of the
appliance.
Difficulty in regulating the burner
and/or lack of yield
– Check: the regular flow of fuel, the
cleanness of the boiler, the non
obstruction of the smoke duct, the
real input supplied by the burner
and its cleanness (dust).
The boiler gets dirty easily
– Check the burner regulator (smoke
analysis), the fuel quantity, the flue
obstruction and the cleanness of
the air duct of the burner (dust).
The boiler does not heat up
– Control the cleanness of the shell,
the matching, the adjustment, the
burner performances, the preadjusted temperature, the correct
function and position of the regulation stat.
– Make sure that the boiler is suffi-
ciently powerful for the appliance.
Smell of unburnt products
– Control the cleanness of the boiler
shell and the flue, the airtightness of
the boiler and of the flue ducts (door,
combustion chamber, smoke ducts,
flue, washers).
– Control the quality of the fuel.
Frequent intervention of the boiler
shutoff valve
– Control the presence of air in the
system, the function of the circulation pumps.
– Check the load pressure of the appli-
ance, the efficiency of the expansion
tanks and the valve calibration.
Fig. 17
4 ± 0,3 mm
A
2 - 2,5 mm
Fig. 16
82
BOILER IGNITION
Press the main switch for lighting the
boiler. The green light turns on to indicate that the appliance is powered (fig.
18).
Choose the position Summer/Winter
on the switch (fig. 19):
–
The boiler operates in treated
phase with the switch in the
position (SUMMER)
–
The boiler operates both in treated
phase as well as for heating with
the switch in the position (WINTER). The room stat or the chronostat will stop the operation of the
boiler.
TEMPERATURE ADJUSTMENT
–
The heating temperature can be
adjusted by turning the knob of the
thermostat (fig. 20).
–
The heating temperature can be
adjusted by turning the knob of the
thermostat which has a range of
between 45 and 85°C.
The temperature setting can be
checked on the thermometer.
To ensure optimal boiler efficiency at
all times, we recommend not to
drop below a minimum working temperature of 60°C (fig. 21).
USER INSTRUCTIONS
WARNINGS
– In case of fault and/or incorrect operation, deactivate it without making any repairs or taking any direct action. If fuel or
combustion is smelt, air the room and close the fuel interception device. Contact the authorised technical staff.
–
The installation of the boiler and any servicing or maintenance job must be carried out by qualified personnel.
–
It is absolutely prohibited to block the intake grilles and the aeration opening of the room where the equipment is
installed. The intake grilles are indispensable for a correct combustion.
IGNITION AND OPERATION
Fig. 18
Fig. 19
Fig. 20
60°C
Fig. 21
GREEN LIGHT ON
SAFETY STAT
The safety stat is of the manually
resetting type and opens, causing the
main burner to turn off immediately,
whenever the temperature of 110°C is
exceeded in the boiler. To restore boiler operation, unscrew the black cap
and reset the button (fig. 22).
Should the appliance “lock out” again,
please approach the authorised technical staff.
BURNER RESTART
In case that ignition or operation faults
occur, the main burner “locks out” and
the red lamp lights up on the control
panel. Press the “RESET” button to
restart the ignition conditions until the
flame lights up (fig. 23).
This operation can be repeated 2-3
times at maximum and in case of failure contact the authorised technical
staff.
ATTENTION: Make sure that there is
fuel in the tank and that the taps are
open. After each fill up of the tank it
is advisable to interrupt the operation of the burner for about one hour.
TURNING OFF BOILER
It is sufficient to press the main switch
to turn off the boiler (fig. 18).
Close both the gas-feed pipe tap and
the water tap if the boiler remains
inoperative for a long period.
SYSTEM FILLING
Check periodically that the hydrometer
83
RESET
TWICE
ONLY
Fig. 23
Fig. 22
RESET
BUTTON
RED WARNING LIGHT ON
has pressure values at a switched-off
system of 1 - 1.2 bar.
If the orange water pressure gauge
light turns on inhibiting boiler operations, restore operations by turning
the supply tap counter-clockwise.
After the operation check that the tap
is properly closed (fig. 24).
Should the pressure exceed the fore-
seen limit, discharge the superfluous
amount by operating on the vent knob
of any radiator.
CLEANING AND MAINTENANCE
At the end of each heating season, it is
essential to have the boiler thoroughly
checked and cleaned out.
Preventive maintenance and checking
of the efficient operation of the equipment and safety devices must be carried out exclusively by the authorised
technical staff.
84
04
13
2
bar
04
13
2
bar
Fig. 24
OPEN
AQUA 30-40 OF/BF AQUA 30-40 OF/BF INOX
ORANGE LIGHT ON
DICHIARAZIONE DI CONFORMITA’
CALDAIE A COMBUSTIBILE LIQUIDO
La FONDERIE SIME SpA, con riferimento all’art. 5 DPR n°447 del 6/12/1991
“Regolamento di attuazione della legge 5 marzo 1990 n°46”, dichiara che le proprie caldaie a com-
bustibile liquido serie:
AR SOLO RONDO’ B
ARB DUETTO ESTELLE B
1R OF AQUA ESTELLE
2R OF/OF S/GT OF RONDO’
sono complete di tutti gli organi di sicurezza e di controllo previsti dalle norme vigenti in materia e rispondono, per caratteristiche tecniche e funzionali, alle prescrizioni delle norme:
UNI 7936 (dicembre 1979), FA130-84, FA168-87
EN 303-1994.
Le caldaie a gasolio sono inoltre conformi alla DIRETTIVA RENDIMENTI 92/42 CEE.
La ghisa grigia utilizzata è del tipo EN-GJL 150 secondo la norma europea UNI EN 1561.
Il sistema qualità aziendale è certificato secondo la norma UNI EN ISO 9001: 2000.
Legnago, 5 settembre 2006
Il Direttore Generale
ing. Aldo Gava
Fonderie Sime S.p.A. - Via Garbo, 27 - 37045 Legnago (Vr) - Tel. 0442 631111 - Fax Servizio Tecnico 0442 631292 - www.sime.it
TAGLIARE LUNGO LA LINEA TRATTEGGIATA
Cod. 6276007C - 04/09 - Documentation Dpt.
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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