[SomeLucky]

I've recently sourced a 2014 Gaggia Classic. I've done all of the normal refurbishing and the small upgrades. Now I'm interested in adding a PID to help with shot flavor consistency. What began as a very simple project of assembling my own PID kit has become something more. I've only completed the planning phase and I believe I have created a good design. Some parts have been purchased with more on the way. I've decided that I don't want to make any permanent case modifications. Since it doesn't bother me to remove the tank from the bottom to fill it, I've designed a box to sit on top of the back plastic part would be. This part would be removed and the box screwed in its place. The box will have a bottom cut-out for a 12 pin Molex connection. This connector will be pointed downward to make all of the connections in the machine. I haven't tested any of this yet and it may not work at all. The majority of the wiring design came from another dual SSR PID document I found featuring a wiring design by GatesofDawn67. I would really appreciate any feedback about my additions. Other than the dual SSR PID part, I've added the following:

Triggerable Timer Relay for automatically starting the timer and/or auto pump start/stop
Pump Power Control Triac Dimmer with bypass switch to vary pump power
Tank light powered by LED driver dimmed by PWM control


Update:

All mods but the pressure gauge installed. Waiting for the group head adapter from Shades.

Nick

 

[Rincewind]

Nick your fuses are on the wrong line...they go on the Live side not Neutral.

 

[SomeLucky]

Ah, thanks. Easily corrected.