Electrical Connections; Service And Maintenance - Ferroli ATLAS D ECO 34 CONDENS K 130 UNIT Instructions D'utilisation, D'installation Et D'entretien

3.5 Electrical connections

Connection to the electrical grid
B
The unit's electrical safety is only guaranteed when correctly connected to an effi-
cient earthing system executed according to current safety standards. Have the ef-
ficiency and suitability of the earthing system checked by professionally qualified
personnel. The manufacturer is not responsible for any damage caused by failure
to earth the system. Also make sure that the electrical system is adequate for the
maximum power absorbed by the unit, as specified on the boiler dataplate.
The boiler is prewired and provided with a Y-cable and plug for connection to the elec-
tricity line. The connections to the grid must be made with a permanent connection and
equipped with a bipolar switch whose contacts have a minimum opening of at least 3
mm, interposing fuses of max. 3A between the boiler and the line. It is important to re-
spect the polarities (LINE: brown wire / NEUTRAL: blue wire / EARTH: yellow-green
wire) in making connections to the electrical line. During installation or when changing
the power cable, the earth wire must be left 2 cm longer than the others.
B
The user must never change the unit's power cable. If the cable gets damaged,
switch off the unit and have it changed solely by professionally qualified person-
nel. If changing the electric power cable, use solely "HAR H05 VV-F" 3x0.75
mm2 cable with a maximum outside diameter of 8 mm.
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. 25 - Accessing the terminal board
3.6 Connection to the flue
The unit must be connected to a flue designed and built in compliance with the current
regulations. 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.
3.7 Condensate drain connection
The unit's condensate drain must be connected to a suitable disposal system. Carefully
comply with the specific local and national regulations on discharging condensate water
into the waste water disposal system. For boilers not using exclusively low-sulphur gas oil
(S content<50 ppm) make sure to provide for a suitable condensate neutralisation device.
Connect the condensate drain pipe located on the back of the boiler (ref. A - fig. 26) to
the waste water system neutralisation device. The condensate discharge pipes must be
acidproof and installed sloping at least 3° towards the drain, without any constrictions
and occlusions.
B
IMPORTANT. Fill the trap with water before starting the unit.
ATTENTION: The unit must never be operated with the trap empty!
Periodically check the water in the trap.
fig. 26 - Condensate drain
34
EN
ATLAS D 34 CONDENS K130 UNIT
A
A
A
cod. 3541Q641 - Rev. 00 - 09/2019

4. SERVICE AND MAINTENANCE

All adjustment, conversion, commissioning and maintenance operations described be-
low must only be carried out by Qualified Personnel (with the professional technical re-
quirements prescribed by current regulations) such as the personnel 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. 27 - 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 acting on the pump pressure, nozzle, head adjustment, and air adjustment as per the
following paragraphs. In any case, the new adjusted output must fall within the boiler's
nominal operating range. After making any adjustments, using a combustion analyser
check that the CO content in the fumes is between 11% and 12%.
2
Nozzle flow rate table for oil
table 2 gives the oil flow rates (in kg/h) according to the change in pump pressure and
nozzles.
N.B. - The values given below are only approximate, since nozzle flow rates can vary by
± 5%. Also, with burners having a preheater, the fuel flow rate decreases by about 10%.
Table. 2
NOZZLE
8 9
G.P.H.
1,32 1,40
0.40
15,66 16,60
1,57 1,65
0.50
18,62 19,57
1,93 2,01
0.60
22,89 23,83
2,12 2,25
0.65
25,14 26,68
2,50 2,65
0.75
29,65 31,43
2,92 3,10
0.85
34,63 36,76
3,30 3,50
1.00
39,13 41,51
4,12 4,40
1.25
48,86 52,18
4,95 5,30
1.50
58,70 62,85
5,69 6,18
1.75
67,48 73,29
Flow rate at nozzle outlet in kg/h
eco
bar
Pump pressure (bar)
10 11 12 13
1,47 1,54 1,61 1,68
17,43 18,26 19,09 19,92
1,73 1,81 1,89 1,97
20,51 21,50 22,42 23,36
2,23 2,32 2,42 2,52
26,44 27,51 28,70 29,88
2,40 2,63 2,74 2,80
28,46 31,19 32,49 33,21
2,80 2,95 3,07 3,20
33,21 34,99 36,41 37,95
3,27 3,45 3,60 3,75
38,78 40,92 42,69 44,47
3,67 3,85 4,02 4,20
43,52 45,66 47,67 48,72
4,61 4,82 5,03 5,25
54,67 57,16 59,65 62,26
5,55 5,80 6,05 6,30
65,82 68,78 71,75 74,72
6,46 6,75 7,06 7,38
76,61 80,05 83,73 87,53
14
1,75
20,75
2,05
24,31
2,64
31,31
2,91
34,51
3,33
39,49
3,90
46,25
4,38
51,95
5,46
64,75
6,55
77,68
7,96
91,20