Dhw Mode - Immergas VICTRIX ZEUS Superior kW I Manual

Technical Documentation
Electric circuit.

DHW mode.

Operation.
By pressing the main button (
which is enabled for functioning in the DHW phase.
If the temperature detected by the DHW NTC probe (B2)
is lower than the setting made on the control panel (or on the
CAR or Super CAR if mounted) and if the contact of the system
pressure switch (S5) is closed (pressure detected in the primary
circuit higher than minimum value),the integrated P.C.B uses
the K2 relay to power the boiler pump (M1) at maximum
speed using relay K5, after which by diversion of the K4 relay
contact it powers the motor (M) of the 3-way valve (M30).
This functions until the end run switch "2" opens when the
DHW position is reached.
Successively 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)
by means of the K7 igniter relay and then the K3 request relay,
both the coils of the gas valve (Y1).
The ignition of the burner is detected by the in tegrated P.C.B.
by means of the ionisation electrode (E2).
STVZSkW ed 09/08
)boiler activation is enabled,
Technical Documentation
CIRCUIT EXTRA-LOW VOLTAGE CIRCUIT
29
Super CAR
(Optional)
ZONES
CONTROL
UNIT (Optional)
IMG BUS
connection
RELAY BOARD (Optional)
Connection for VIRGILIO
palmtop
Microprocessor programming
connector
Storage tank
function
jumper
VICTRIX ZEUS Superior kW I