Description Of The Working - Animo Wks Service

Animo

13.4 Description of the working

(see electrical diagram S30037 and fig. 4)
1. Switch S1 supplies the pc board with power.
2. When the steam boiler is still empty, the outer pc board relay RL1 opens the solenoid valve Y1
and the steam boiler fills (the red LED is on).
3. When the water level reaches the minimum level probe R1, the pc board relay RL2 will switch
on the relay K1, which in its turn gives power to the heating element E3 (the red LED switches
off and the green LED goes on). The filling of the boiler continues.
4. When the water level reaches the maximum level probe R2, the solenoid valve will stop filling
(with a small delay).
5. During the heating process of the steam boiler, the steam pressure is built up. When the
overpressure has reached abt. 0.6 bar, the contact of the pressure switch S2 is disconnected.
This also disconnects the phase that runs to connection 3 of the pc board. The heating E3 is
switched off. Attention: not because of the switching off of the pc board relay RL2, but because
of the fact that the pc board relay contact does no longer receive any phase through the
pressure switch S2!
6. When the working pressure in the steam boiler drops due to cooling down or decrease of
steam, the pressure switch S2 turns on again, which causes the heating element to start
heating again.
7. When the maximum electrode R2 does not detect any water level, the solenoid valve Y1 only
fills the steam boiler when the heating is switched off! This "priority circuit function" makes sure
that the working pressure of the steam boiler is kept as optimal as possible.
WKS
S1
R2
R1
S2
24
Service manual
K1
E3
RL2
RL1
Y1
09/98