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Unical EVE 05 CTN 24 F Manual

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Adjustment info
fig. 30
1
EVE 05 CTN 24 F - EVE 05 CTN 24 - EVE 05 RTN 24
Tipe of
gas
Output
min. - max
(kW)
Input
min. - max
(kW)
Supply
pressure
(mbar)
No. of
Nozzles
Ø
Diaphragme
(mm)
Natural gas(G20)
Propan (G31)
10,17 - 24,0
10,17 - 24,0
11,5 - 26,5
11,5 - 26,5
20
37
12
12
Ø
Nozzles
(mm)
-
-
EVE 05 CTFS 24 F - EVE 05 CTFS 24 - EVE 05 RTFS 24
9,9 - 24,2
9,9 - 24,2
11,5 - 26,5
11,5 - 26,5
20
37
12
12
-
-
1,25
0,80
2,7
6,2
13,3
33,0
1,22 m³/h
0,89 kg/h
2,80 m³/h
2,06 kg/h
1,30
0,80
2,3
6,2
12,0
33,0
1,22 m³/h
0,89 kg/h
2,80 m³/h
2,06 kg/h
Gas nat. (G20)
Propano (G31)
fig. 31
JP1: For nat. gas boilers, the jumper is
on NAT.
For LPG boilers, the jumper is on
LPG.
LPG
JP1
NAT
LPG
NAT
The pressures at the burner indicated in the following table must be checked after the boiler has been operating for 3 minutes.
NOZZLES - PRESSION - DIAPHRAGME - CONSUMPTION TABLE
max.
min.
(mbar)
max
(mbar)
min.
Burner pressure
Tipe of
gas
Supply
pressure
(mbar)
No. of
Nozzles
Ø
Diaphragme
(mm)
Ø
Nozzles
(mm)
min.
(mbar)
max
(mbar)
Burner pressure
2.7 - MODIFICATION FOR
OTHER GASES
The boilers are manufactured for the type of
gas specifically required upon order.
Any subsequent conversion must be perfor-
med by qualified technicians who will use the
kits supplied by Unical and perform the con-
version and required adjustments for correct
preparation of the boiler for use.
To convert the boiler from one type of gas to
another proceed as follows:
for conversion from natural gas to LPG
- remove the main burner;
- disassemble injectors of the main burner
and replace them with those with a diame-
ter corresponding to the new type of gas
(see table “INJECTORS - PRESSURES”);
- reassemble the main burner;
- position the jumper on the modulation PCB
in the panel board as shown in fig. 31
- remove plug ‘’A’’ (fig.28) on the gas valve
and fully tighten max pressure adjustment
screws ‘’B’’
- check the pressure value upstream the gas
valve (see table “INJECTORS - PRESSU-
RES”) and adjust the pressure of the bur-
ner as indicated in section “ADJUSTING
THE BURNER”
- check that the burner is functioning pro-
perly;
- check that there are no gas leaks.
- tighten the plug ”A” (fig.28) of the max
pressure adjustment screw
- when the conversion is completed, fill in
the label supplied in the kit with the infor-
mation required and stick it onto the boiler
alongside the data plate.
for conversion from LPG to natural gas
- remove the main burner;
- disassemble injectors of the main burner
and replace them with those with a diame-
ter corresponding to the new type of gas
(see table “INJECTORS - PRESSURES”);
- reassemble the main burner;
- position the jumper on the modulation PCB
in the panel board as shown in figure 31;
- remove plug ‘’A’’ (fig.28) on the gas valve
- check the pressure value upstream the gas
valve (see table “INJECTORS - PRESSU-
RES”) and adjust the burner pressure as
indicated in section “ADJUSTING THE
BURNER”;
- check that the burner is functioning pro-
perly;
- check that there are no gas leaks.
- tighten the plug “A” (fig.28) of the max
pressure adjustment screw;
- when the conversion is completed, fill in
the label supplied in the kit with the infor-
mation required and stick it onto the boiler
alongside the data plate.
Gas
consumption
max.
min.
Gas
consumption
Output
min. - max
(kW)
Input
min. - max
(kW)
… 30 …


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