Change Of Piezo Igniter; Change Of Dc Solenoid; Change Of Dc Solenoid Micro Switch - Vaillant VCW 2O Instructions For Installation And Servicing

Af 5 Change ot piezo igniter
(VCW-sine only)
Elisconnecl the high voltage lead (pl) from the
i.d bolt. Removethe retaining screw (p2) and
remove the unit by springing the bracket.
Reassemble in reverse onier, ensuring that
krcding dimple in the bracket aligns wiih the
dd in the piezo unit.
8.16 Change of DC solenoid
lsolate the appliance from the electrical mains.
llolg.coloy.r code and puil off the AMp ptugs
(Dl) from the micro switch as weil as the'Alrip
dugs (D2) from the DC solenoid socket.
Loosen the
2
retaining screws
(Dg).
Beassemble in reverse ordel.
Check - earth continuity
- polarity
-
resistance to earth
a€cording to INSTRUCTIONS FOR BR|T|SH
GAS MULTIMETER.
8.17 Change of DC solenoid micro switch
lsolate the appliance from the electrical mains.
Note the colour code and pull off the AMp oluoi
(Ml). Unscrew the 2 retaining screws iMi;.
Reassemble in reverse order.
-
Check - earth continuity
- polarity
- resistance to earth
qcggrding to TNSTRUCTTONS
FoR BRtTtsH
GAS MULTIMETER.
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