26
or the
30 HE -EV
boiler to function with
LPG, press
until
04
appears
.
Confirm this value using
or
.
Exit the parameters section by pressing
.
The table below gives the values to set
when the supply gas is changed:
4.2.2
Adjusting the gas valve pressure
(fig. 16)
Set maximum and minimum pressure on
gas valves as follows (fig. 16):
– Connect a manometer to the intake
downstream of the gas valve (4 fig 14).
Disconnect the valve VENT pressure
test point tube (5 fig. 14).
– Remove the cap (1) from the modulator.
– Put the boiler in chimney sweep mode
(see 4.4.1), completely open the hot
water tap.
– Press the key
(Hi).
– Turning the gas valve adjusters clockwi-
se will increase the pressure, anti-
clockwise will decrease it.
– Adjust maximum pressure using the nut
(3) with a wrench to the maximum pres-
sure value indicated in
Table 7
(fig. 14).
– Adjust the maximum pressure before
adjusting the minimum.
– Press the key
(Lo) while the hot
water tap is on, with the water running.
– Hold the nut (3) in place, turn the screw
(2) to the minimum pressure indicated
in
Table 7
(fig. 14).
– Alternately press the keys (
and
)
while keeping the hot sanitary water run-
ning all the time, and check that the
maximum and minimum pressures cor-
respond to the set values; if necessary
readjust..
– Press the key
again to quit the func-
tion.
– Refit the valve VENT pipe.
– Remove the manometer, remembering
to tighten the screw closing the pressu-
re test point.
– Put the plastic cap (1) back on the modu-
lator. Check all test points and connec-
tions for gas tightness.
4.3
DISMANTLING
THE CASING (fig. 17)
The casing may be removed completely to
facilitate boiler maintenance, as shown in fig.
17. Turn the panel control forward for access
to the internal components of the boiler.
2
4 x
1
Fig. 17
Codice/Code 8104021
Modello/Model ECOMFORT PLUS 30 HE -EV
Matricola/Serial n. 9999999999
PAR 1 = 02 (METANO) / 04 (GPL)
PAR 2 = 09
BOILER
GAS MODELS PAR
1
METHANE
25
01
ECOMFORT
(G20)
30
02
PLUS HE -EV
LPG
25
03
(G30/G31)
30
04
3
2
1
Fig. 16
K
KE
EY
Y
1 Plastic tap
2 Minimum pressure adjusting nut
3 Maximum pressure adjusting nut
