Electric Circuit; Super Car; Remote Control; Img Bus Connection - Immergas HERCULES SOLAR 26 1A Manual

Technical Documentation

Electric circuit

Inside the control panel the boiler is equipped with a P.C.B.
with integrated microprocessor for control of the appliance's
electric devices, which takes care of linear modulation of
burner power.
The display shows the status and functioning mode of the
appliance, indicating any intervention of the safety devices,
with which it is supplied.
The P.C.B. supplied with all models, whether with
storage tank or instant (HERCULES Solar Condensing,
HERCULES Condensing kW, VICTRIX ZEUS Superior
kW, VICTRIX Superior kW PLUS, VICTRIX SUPERIOR
Kw) is the same. The different type of boiler functioning is
recognised automatically by means of the appliance's wiring.
The integrated P.C.B. is always powered independently from
the selection made on the main button (
The board carries out a periodical self-check to control its
correct functioning. During functioning in CH mode or
with boiler in stand-by, the function activates every 18 hours
from the last check/powering of the boiler. If functioning in
DHW mode, the self-check starts within 10 minutes after the
end of the withdrawal in progress for the duration of about
10 seconds.
N.B.:during the self-check, the boiler remains off.
STHSC ed 0710
RELAY BOARD (Optional)
VIRGILIO hand-held panel
connection
Microprocessor programming
connector
Central heating request
By pressing the main button (
By using the button (A) to select
functioning in the CH mode is enabled.
On closure of the room thermostat contact (S20), if the system
pressure switch contact (S5) is closed (pressure detected in the
primary circuit higher than minimum value), the integrated
P.C.B. powers the pump (M1) and the motor (M) of the 3-way
valve (M30). This functions until the end run switch "1" opens
when the CH position is reached; this leads to supply of the
CH pump (M2).
If the temperature detected by the NTC flow probe (B1) is
below the setting made on the control panel using the CH
temperature selector, the integrated P.C.B. powers the fan
).
(M20) and manages the speed.
With the consent of the safety thermostat (E4) and the
flue safety thermostat (E6) and the fan (M20) reaching the
"validate ignition" speed, the integrated P.C.B. allows to start
the ignition cycle by controlling, first the ignition electrodes
(E1) and then both the coils of the gas valve (Y1).
The ignition of the burner is detected by the integrated P.C.B.
by means of the ionisation electrode (E2).
During the ignition phase the fan works at a speed equal to one
third the maximum set (see heat output adjustment).
Successively the burner goes to the minimum value set by
means of the "MIN CH.*" parameter setting, to then reach
the maximum value set (if requested) by setting the "MAX.
CH" parameter in a determined time from the setting of the
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Technical Documentation
CIRCUIT WITH VERY
LOW SAFETY VOLTAGE
) boiler activation is enabled.
(Winter) functioning,
HERCULES Solar 26 1A

Super CAR

Remote control

(Optional)
STATE
SIGNAL
IMG BUS
CONNECTION