5
HYDRAULIC INSTALLATION
24
LPG may cause corrosion; piping and fitting materials must be resistant to this corrosion.
Vertical gas pipes must be equipped with a siphon and provided with a drain for the condensate that may form inside the pipe dur-
ing cold periods. It may also be necessary to insulate the gas pipe to prevent the formation of excessive condensate.
In any case, provide an isolation valve (ball valve) on the gas supply line, to isolate the appliance when required.
Table 5�2 – Network gas pressure
AY00-120; E3 AY00-120
Gas supply pressure
Product categories
Countries of destination
G20 [mbar]
G25 [mbar]
G30 [mbar]
G31 [mbar]
G25�1
[mbar]
G27 [mbar] G2,350 [mbar]
II
2H3B/P
AL, BG, CZ, DK, EE, FI, GR, LT,
NO, SE, SI, SK, TR
20
30
30
AT, CH
20
50
50
HR, MK, RO
25
30
30
IT
20
28-30
37
II
2H3P
AL, BG, CZ, ES, GB, IE, LT, PT,
SI, SK
20
37
HR, MK, RO
25
37
37
II
2HS3B/P
HU
25
30
30
25
II
2E3P
LU
20
50
II
2ELL3B/P
DE
20
20
50
50
II
2Esi3P *
FR
20
25
37
II
2L3B/P
NL
25
50
50
II
2E3B/P
PL
20
37
37
II
2ELwLs3B/P
20
37
37
20
13
II
2ELwLs3P
20
37
20
13
I
2E(S); I3P
BE
20
25
37
I
2H
LV
20
I
3B
MT
30
I
3B/P
CY, MT
30
30
I
3P
IS
30
Note: values reported in table are the nominal one, it is in any case accepted a value within the tollerance range of ±15% (Pmin/Pmax).
For data regarding hourly fuel consumption of the appliance, refer to Table 3.1
→
9.
5�5
CONDENSATE DISCHARGE
The fumes exhaust pipe is located on the right of the appliance on the service plate.
To install/connect the condensate discharge pipe, proceed as follows:
The condensate discharge to the sewer must be:
▶
made of materials resistant to acidity with pH 3 to 5;
▶
sized to ensure a slope of 10 mm per metre of length; if this slope cannot be achieved, a condensate pump (available as an acces-
sory) must be installed near to the discharge - see Section 8
→
58);
▶
realized in such a way as to prevent icing of the condensate;
▶
mixed, for example, with domestic effluent (washing machine, dishwasher, etc.), usually of base pH, so as to form a buffer solution
before discharge into the sewer.
Do not discharge the condensate into the gutter drains, given the risk of icing and degradation of the materials usually used
for such drains.
CHARGING THE SIPHON
In case of residential installation, to prevent an initial discharge of combustion products from the condensate drain, charge the
siphon itself as follows:
1.
remove the appliance's front panel and open the interior panel to access the siphon;
2.
if the fumes exhaust equipment has not yet been installed, pour 0.2 litres of water directly into the plastic fumes exhaust pipe
accessible from the top panel (see Figure 5.6
→
28 - detail "D") and visually check that the siphon is full, then go to step 5.
Otherwise, proceed as follows;
3.
remove the clamp, disconnect the plastic siphon pipe and fill it with 0.2 litres of water;
4.
reconnect the plastic pipe and secure it with its clamp;
5.
restore the appliance.
If the appliance is operated with the siphon empty, there is a risk of leaks of combusted gas.
