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[JohnL]

Hi,

I just finished installing the PID controller kit for my Saeco Via Venezia. Everything seems to be working fine but I have a few questions:
1) The PID controller is SYL-1512A.  As per manual there are settings for Sv (temperature), AH1 and AL1. However there are also AH2 and AL2 on my controller.    Does anyone know what they are?
2) I set the Sv to 203, AH1 to 220, and AL1 to 203.  I turned on my espresso machine and waited... The temperature first went all the way to 225 and the AL light was on (obviously).  After a while the temperature started dropping , went below 203 (and the AL light was off but the OUT AT light started flasting) and all the way down to 186 before the boiler turned back on again and the temperature went up all the way to 225 again.  At 225 the OUT AT light went off.   Is this correct or I did something wrong?   I checked the SSR and it does work (i see the red light kicking in when the temp was low).   Shouldn't the boiler restart when the temp was below 203?

I know there is a setting to turn on auto tuning.  I actually did the auto tuning and checked the Sv, AH1 and AH2 values after turning the auto tuning off. The values were set as Sv 203, AH1 220, AL1 203.

Thanks