Immergas HERCULES Condensing 26 2 E Manual page 39

Technical Documentation
230 V AC circuit.
Detection electrode
(E2)
Line fuse
(F1)
Anti-jamming filter
(Z1)
Igniter
(G2)
Ignition electrodes
(E1)
Boiler pump
(M1)
CH pump
(M2)
Integrated P.C.B.
Pump relay board
(A10)
(NOT present on HER-
CULES Condensing ABT)
Three-way valve
(M30)
STHCkW ed 04/09
Safety devices and controls.
It detects burner ignition from where the flame is hit.
It is connected to the detection circuit of the integrated P.C.B.
It cuts off the power supply to the circuit when the current absorbed
exceeds 3.15A.
It is inserted onto the integrated P.C.B.
It is a filter connected to the power supply line of the pump relay board, which allows to
limit the effects of electromagnetic interference.
N.B.: in the HERCULES Condensing ABT model it is positioned on the power supply
circuit of the zones digital control unit (supplied as per standard).
Loads.
It is controlled by the integrated P.C.B. when burner ignition is requested.
It makes the ignition spark.
It is placed on the left side of the condensation module.
They are controlled by the igniter that causes an electric spark between their ends and on
the contact with which the air-gas mix ignites.
It is powered by the integrated P.C.B. when there is a DHW, CH or anti-freeze request.
Allows circulation in the primary circuit.
It is powered by the integrated P.C.B. when there is a CH or anti-freeze request.
Allows circulation in the CH system.
The board is always powered independently from the position of the button
tegrated P.C.B. functioning).
By the diversion of the K1 relay contact, it allows to power the CH pump (M2).
It allows the diversion of the water flow of the primary circuit to the storage tank coil
and vice versa.
It is powered by the integrated P.C.B.
37
Technical Documentation
Fuse
3,15 AF 250 V
HERCULES Condensing Export
(see in-