Immergas MINI NIKE 3 E - Page 27

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STMiN3E ed 09/11 MINI NIKE 3 E
Technical Documentation
Technical Documentation
Outputs
It is powered by the integrated P.C.B. when there is a DHW, CH or anti-freeze request.
Boiler pump
(M1)
is is controlled by the integrated P.C.B. with a high voltage signal (greater than 16 kV)
which causes an electric spark that ignites the air-gas mixture.
Ignition and detection
electrode
(E3)
230 V AC high voltage circuit
Ignition and detection
electrode
(E3)
Inputs
e board power supply is connected to the L and N clamps of the X1 connector.
- 230 V AC +10% / -15%
- 50 Hz +/- 5%
230 V / 50 Hz
Detects the ignition of the burner by which the ame is hit and
allows the integrated P.C.B. to increase the modulation coil speed
(Y2) after having limited it during the ignition phase. It keeps the
gas valve open (Y1).
It is connected to the detection circuit of the integrated P.C.B.
Flame signal =
6 ÷ 15 microA
It is powered by the integrated P.C.B. when burner ignition is necessary.
e SIT 845 gas valve is powered by the mains voltage, the VK 4105 gas valve is powered
by the straight mains voltage through a diode bridge (U1) contained inside the gas valve
connector.
Allows the passage of gas to the burner.
Gas valve (Y1)
(main coils)
e P.C.B. is always powered independently from the position of the button (see
integrated P.C.B. functioning).
Integrated P.C.B.
It allows the diversion of the water ow of the primary circuit to the plate heat exchanger
and vice versa.
It is powered by the integrated P.C.B.
ree-way valve
(M30)
(X 24 version optional)
It cuts o the power supply to the circuit when the current absorbed
exceeds 3.15A.
It is mounted onto the integrated P.C.B.
Phase fuse (F1)
Fuse
3.15 AF 250 V
Safety devices