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Room thermostat (optional)
B
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE
CONTACTS. CONNECTING 230 V TO THE ROOM THERMOSTAT TERMI-
NALS WILL PERMANENTLY DAMAGE THE ELECTRONIC BOARD.
When connecting time controls or a timer, do not take the power supply for
these devices from their breaking contacts Their power supply must be by
means of direct connection from the mains or with batteries, depending on the
kind of device.
Accessing the electrical terminal block
Undo the two screws "A" located on the top part of the control panel and remove the
cover.
fig. 22 - Accessing the terminal board
3.6 Connection to the flue
The unit must be connected to a flue designed and built in compliance with current reg-
ulations. The pipe between the boiler and flue must be made from material suitable for
the purpose, i.e. heat and corrosion resistant. Ensure the seal at the joints and insulate
the entire pipe between boiler and flue, to prevent the formation of condensate.
4. SERVICE AND MAINTENANCE
All adjustment, conversion, commissioning and maintenance operations described be-
low must only be carried out by Qualified Personnel (meeting the professional technical
requirements prescribed by the current regulations) such as those of the Local After-
Sales Technical Service.
FERROLI declines any liability for damage and/or injury caused by unqualified and un-
authorised persons tampering with the unit.
4.1 Adjustments
TEST mode activation
Press the heating buttons (details 3 and 4 - fig. 1) together for 5 seconds to activate the
TEST mode. The boiler switches on irrespective of the system or DHW request.
The heating symbol (detail 24 - fig. 1) and DHW symbol (detail 12 - fig. 1) flash on the
display.
fig. 23 - TEST mode
To deactivate the Test mode, repeat the activation sequence.
The TEST mode is automatically disabled in any case after 15 minutes.
Burner adjustment
The burner is factory-set as given in table 2. The burner can be set to a different output
by adjusting the pump pressure, nozzle, head setting, or air setting as described in the
following paragraphs. In any case, the new power setting must come within the boiler's
nominal working range. After making any adjustments, use a combustion analyser to
check that the CO
content in the fumes is between 11% and 12%.
2
Table. 2 - Burner adjustment
Boiler
Heating
Burner
Burner
model
capacity
model
capacity
kW
kg/h
ATLAS D 30 UNIT
30.1
SUN G6 R
2.54
ATLAS D 42 UNIT
36.4
SUN G6 R
3.07
Oil nozzle flowrate table
The oil flow rates (in kg/h) according to the variation in pump pressure and nozzles are
given in table 3.
N.B. - The values given below are approximate, since the nozzle deliveries can vary by
± 5%. Also, for burners with a preheater, the fuel flow rate decreases by approx. 10%.
38
EN
Pump
Head
Nozzle
pressure
adjustment
US
Angle
Code
Bar
L
Gall/h
0.65
60°
35601320
10
22
0.85
60°
35601340
10
26
cod. 3540S526 - Rev. 00 - 09/2013
Table. 3
Pump pressure (bar)
NOZZLE
G.P.H.
0.40
1.44
0.50
1.80
0.60
2.16
0.65
2.34
0.75
2.70
0.85
3.06
1.00
3.61
1.10
3.97
1.20
4.33
1.25
4.50
1.35
4.87
Pump pressure adjustment
The pump pressure is factory set for optimum operation and should not normally be
changed. However, if special needs require a different pressure, after applying the pres-
sure gauge and lighting the burner turn the adjustment screw "6" indicated in fig. 25. It is
anyhow recommended to keep within the range of 10 - 14 bar
10
5
0
Air
adjustment
Notch
11
14
1.
Inlet (suction)
2.
Return
3.
Outlet to nozzle
4.
Pressure gauge connection
5.
Vacuum gauge connection
6.
Adjustment screw
7.
By-pass screw
ATLAS D UNIT
9
10
11
12
1.52
1.59
1.67
1.90
1.99
2.08
2.28
2.39
2.50
2.47
2.59
2.71
2.85
2.99
3.12
3.23
3.39
3.54
3.80
3.99
4.16
4.18
4.38
4.58
4.56
4.78
5.00
4.75
5.00
5.13
Delivery at nozzle outlet in kg/h
15
20
25
fig. 24 - SUNTEC pump
10
5
0
fig. 25 - DANFOSS pump
13
14
1.73
1.80
2.17
2.25
2.60
2.70
2.82
2.92
3.25
3.37
3.68
3.82
4.33
4.50
4.77
4.95
15
20
25
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