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Idiomas disponibles
3
CHARACTERISTICS
3. 1
ELECTRONIC BOARD
The electronic boards has been produced in
compliance with the EEC Low Voltage
Directive 2006/95. The supply must be at
230V and 24V is sent through a built-in
transformer to the following components:
safety thermostat, water pressure valve,
modulator, fumes pressure switch, zone
micro valve, D.H.W. flow switch, sensors
and Remote Control.
An automatic and continuous modulation
system enables the boiler to adjust the heat
output to the various system requirements
or the User's needs.
3. 1 . 1
Devices foreseen on the card
The electronic card has the following devi-
ces:
6
4
3
7
– JP4 jumper "GPL/MET" (5 fig. 18)
With the connector d d i i s s c c o o n n n n e e c c t t e e d d , the
boiler is prepared to function with metha-
ne, with the connector i i n n s s e e r r t t e e d d with LPG.
– JP7 jumper "LOW TEMP" (4 fig. 18)
The jumper is used to select the margins
of the central heating temperature range
(min.-max.), which can be set by the remo-
te control.
With the connector d d i i s s c c o o n n n n e e c c t t e e d d , the
central heating regulation range is
between 40 and 80°C.
With the connector i i n n s s e e r r t t e e d d the regula-
tion range passes to between 30 and
45°C.
– Jumper JP1 "NO POST. DHW"
(6 fig. 18)
The connector bridge allows to eliminate
post-circulation by 1 second after a
EXCLUDED
DISINSERITO
INSERTED
INSERITO
JP1
JP4
JP7
5
domestic hot water service:
disconnected = post-circulation active,
inserted = post-circulation deactivated.
3. 1 .2
Board functions
The circuit board has the following func-
tions:
– Anti-freeze protection of the central hea-
ting and domestic hot water circuit inside
the boiler to -15°C.
– Pump anti-block, which is powered for a
few seconds after 24h of inactivity.
– Chimney sweep, which can be activated
from the remote control in domestic hot
water phase only.
– Sliding temperature with external probe
connected. It can be set from the remote
control and is activated on zone 1. In the
case of a system with several zones, the
KEY
1
230/24 V transformer
2
Ignition transformer
3
Fuse F1 (1.6 AT)
4
"LOW TEMP." jumper
5
"GPL/MET" jumper
6
"NO POST. DHW" jumper
7
Fuse F3 (1.6 AT)
1
2
Fig. 18
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