Immergas VICTRIX Zeus 26 1 I, Руководство пользователя

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26
STVZ1I ed 10/09 VICTRIX Zeus 1 I
Technical Documentation Technical Documentation
Operating
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 (VICTRIX X 24 2 I, VICTRIX 26 2 I) 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 selector switch (S2).
Central heating request
The main selector switch (S2) in "WINTER" position enables
functioning in the CH mode.
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 "2" opens
when the CH position is reached.
If the temperature detected by the NTC flow probe (B1) is
below the setting made on the control panel using the CH
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 "vali-
date 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 half
the difference between the maximum speed and the minimum
speed set (see heat output adjustment).
Successively, the burner goes to the minimum value set via re-
gulation of the "DHW and CH minimum output" value, to then
reach, if necessary, the maximum value set via regulation of the
"Maximum heating output" value, in a time of 8.5 minutes.
Successively, flame modulation takes place with reference to the
difference between the temperature set on the boiler control
panel and that detected by the DHW probe (B1).
When the set temperature is exceeded (+5°C) the burner
switches off. Re-ignition for the same request is prevented for
180 seconds, which can be reduced to 30 seconds by operating
on the relevant jumper "S7"(see central heating timer selector
switch).
Every time the burner switches off the fan functions at mini-
mum speed for another 55 seconds and the pump performs a
post-circulation of 60 seconds.
ONE RELAY
BOARD
(Optional)
STORAGE TANK
FUNCTION JUMPER
Winter
Reset
ZONES CONTROL
UNIT (optional)
CAR
(optional)
ONE RELAY
BOARD (Optional)
CIRCUIT WITH VERY LOW SAFETY
VOLTAGE
LOGIC – COMMANDS MICR
OPR
OCESSOR
DHW
CH
FAN SPEED