Boiler Startup; Preliminary Testing; Eolo Mini S Electrical Circuit Diagram - Immergas EOLO Mini S Instruction Booklet

BOILER STARTUP
ES
PRELIMINARY TESTING
To start up the boiler, proceed as follows:
- ensure that the declaration of conformity of in stal la tion is
PL
supplied with the appliance;
- ensure sealing effi ciency of the gas intake circuit with the
CZ
shutoff valves closed and then with the valves open and
the gas valve deactivated (closed); the meter must not
indicate gas transfer for at least ten minutes;
HR
- ensure that the gas used corresponds to spec i fi ca tions for
the boiler;
- ensure connection to a 230V-50Hz power mains, correct
SL
L-N polarity and the earthing connection;
- switch on the boiler and ensure correct ignition;
HU
- ensure that the maximum, intermediate and min i mum gas
fl ow rate and relative pressure val ues conform to specifi ca-
tions in the booklet on page 122;
IE

Eolo Mini S electrical circuit diagram.

Primary
Secondary
Room thermostat and clock programmer: the boiler is
designed for ap pli ca tion of an room thermostat (TA) and
of a clock programmer (CP). If you have only one of these
devices, connect to ter mi nals 6 and 9 and remove jumper P1.
Whereas if you have both, connect (TA) on terminals 8 and
9, and (CP) on terminals 6 and 7, after removing P1.
Electronic card function options.
 e electronic card is equipped with jumpers de signed to
regulate boiler operation according to spe cifi c in stal la tion
118
requirements.
Power supply
230 Vac 50Hz
Heating adjustment
Ignition power
Heating power
- ensure activation of the safety device in the event of gas
supply failure, as well as the relative ac ti va tion time;
- ensure activation of the main switch downstream of the
boiler and inside the boiler;
- check that the intake and/or exhaust terminals are not
blocked;
- ensure activation of the safety pressure switch in the event
of air supply failure;
- ensure activation of all regulation devices;
- seal the gas fl ow rate regulation devices (if set tings are
modifi ed);
- ensure production of hot domestic water;
- ensure sealing effi ciency of water circuits;
- ensure adequate ventilation and/or aeration of the boiler
environment.
If any checks/inspection give negative results, do not start
the boiler.
Key:
E1-E2 - Ignition electrodes
E3 - Detection electrode
JP1 - Gas selector
JP3 - Heating timer selector
LD1 - Flame presence led
LD2 - Fault indicator led
MOD - Modulating coil
MP - Circulating pump
MV - Fan
NM - Delivery NTC sensor
OP - Timer
P1 - Room thermostat jumper
SV - Air pressure microswitch
TA - Room thermostat On/Off (optional)
TS1 - Temp. overload safety thermostat
VG - Gas valve
- Jumper JP1: when inserted the appliance op er ates with
LPG; when removed the appliance operates with natural
gas.
- JP3 jumper; when inserted, after the heating tem per a ture
is reached the boiler only re-starts after 3 minutes; when
removed, the interval before re-start changes to 30 seconds,
useful for convection fan systems.