The REX-C100 should work out of the box, set for heating mode, with alarms disabled, and units set to Celsius. Hi Peter. The 103 is not a true 103, that is what is getting measured in the boiler wall, and there is also a temperature drop off between the boiler and the portafilter, so your final espresso temperature will be lower. Its getting very hot indeed so turned it off. When I got my C100 the thermocouple was M6, i ended up buying an m4 brass bolt drilling it out, and inserting the thermo with some glue and heatshrink on it and it works like magic added some thermal paste. However, depending on the seller, some settings may need to be changed. The default target temperature on the PID will almost certainly not be correct. add to list. The MCP9600 board is fastened with a screw to the small ledge inside the 3D printed box. Includes both BREW and STEAM control SSR's. Suitable for new style Gaggia Classic coffee machines usually made in 2018 or after. (I believe it is currently on 5) Or shall I just keep it as it is, showing DC 100V when I turn the switch on? sign in Thank you for making it. Thank you Chris for the awesome write up. This wont be enough for the boiler heating element. Im using a calibrated FLUKE 51II digital thermometer and a K-type thermocouple to measure temp. Theres also a M4 connected thermocouple wire on Amazon that arrived fast although it increased the whole cost compared to Bangood. GAGGIA Classic, parts, set, kit - Gasket Repair kit for Classic, Baby, Evolution. Is there an easy way to set a brewing and steam temp? I know wiring might be different colours but is everything in the same place? Watching the steam temp with the PID is interesting (I know it has no effect on it, but it is cool to see how it reacts now) and it is definitely best practice to steam while its on its way up in temp, once it hits the set point it comes down for a while (mine settled around 130 before it started back up). best part it is inexpensive and as easy as OPV mod, here are the links: Thanks! Hello, I am new to Gaggia world with my Classic Pro 2019 model and on the way of installing DIY PID for both brew and steam functions. I might even have the original box. 15,00 . Hi Kraken. Tags Slim PID Holder for Gaggia Classic Design to 3D. Opciones de compra y productos Add-on . SSR control ready to connect external Solid State Relay to handle High current. Pull the two wires that you removed from the thermostat up to the top of the machine, near the rest of the wires that run from the front to the back of the machine. You'll need the following parts, as well as basic soldering tools/skills and access to a 3D printer (if you choose to use the included .stl files). Chris, do you recall what size flat head screw was used on the 3d printed box for the REX-100? That would be easy enough to verify with a multimeter, to see which thermostat is active in steam mode and which one is active in brew mode. However I dont know if my unit is properly calibrated and/or has a proper offset. Let me know your thoughts !!! I completed the installation last night and like you it too me about 5 hours But this included cutting a hole in the case stainless steel case to mount the PID controller internally, and that was probably the most time-consuming and difficult thing. The same can be done with the REX C100 but you need one with all 8 screw terminals (the second SSR for steam uses the alarm function which needs terminals #6 and #7) and these two are missing on some REXs. 3 months later, Ive finally set up the PID and honestly, its a gamechanger! Adding a PID on and replacing the OPV spring will help for sure, but by that point if you buy the PID as a kit from Auber or Shades that's $200 and the OPV spring from Shades is another $15. You could definitely drill out the adapter a bit to get the thermocouple to fit. Gaggia Classic'teki stma sistemi basit mekanik termostatla altndan scaklk 85-105 derece arasnda gidip geliyor ve siz demlemenin hangi scaklkta balayp hangi scaklkta bittiini bilemiyorsunuz. You signed in with another tab or window. The fun of the PID is not just the great stability, but the ability to fine tune the brew temperature to your taste! One last question: Auber and Mr Shades are calling their sensors PT100 while mine is K type thermocouple. Measured everything with multimeter, then realized that C100 doesnt get main while machine is on based on the lights. Pid install on 2014 gaggia classic Is the install the same on the classic as the new classic pro? Once these bolts are removed, the boiler can be moved around without having to disconnect any hoses or wires. Hi Jun. I guess I could revert the machine and see what I get. as a cheap indicator to assist with surfing. Never used a K type so I cant say for sure. Do you think that REX-C100FK02-V*EN (designed for K-type thermocouple) is compatible with RTD (PT100) and is not going to create long-term problems with the machine/setup? Hi Chris, i noticed you used the K type thermocouple with the M4. For the wiring inside the PID I just used 32AWG single strand hookup wire and for any wiring inside the Gaggia I used silicone insulated wire (26AWG for the wiring from PID to SSR, 12AWG to extend the thermoswitch leads to the SSR as referenced in the Installation Steps below). Im on [emailprotected] However, when I flip the gaggia power switch to off, the PID LCD screen remains illuminated. Hey. You could approach this two ways. Learn more. Thanks Jimmy. Thanks. Cookie Notice Autotuning had resulted in shot instability up to 10 degrees during a shot probably because conditions during standby and during brewing are very different than each other. I can do a more detailed writeup of what Ive done if anyone feels like helping me find out whats not working properly! This would explain the constant switching on and off. Hi Brian. Hi Chris. Hello Chris, I have a different/better single boiler PID machine I will use to pull shots. Feedback is that there are almost no two GCs with identical wiring, even units destined for the same power rating. Does this happen even if you let the machine sit in steam mode and dont open the steam valve?. The documentation showed the default settings as P:30 I:240 D:60, but after tuning they were P:37 I:50 D:12. When the PID signals the SSR, as indicated by the brew ready light and the output led on the PID, the pressure coming out of the pump decreases, and then increases again after the PID out to the SSR turns off. Range: -1999 to 9999 (depends on the input signal) The C-100 can accommodate only one sensor/SSR, so you would only set it for brew temperature. Hi Chris, I am gathering / ordering the parts specified and was surprised to find out the price for 3d printing price spiked. Using two 5-8 cm pieces of properly-rated wire (15 amps for North America), make two connectors to connect the thermostat wires to the AC terminals of the solid state relay. Ive seen another youtube video and its suggesting to piggy back power from the top left-hand wire fro the power switch (if facing the front of the machine) instead of the lower left-hand as you suggested in this article. Test that everything is working before closing the machine back up. The biggest problem was the fact that the brew water control did not work: the SSR was never switched on by the thermocouple output. Input. In it's current revision, the Arduino board is still powered via USB so there needs to be an opening to plug in the USB cable. But I wondered if anyone has had the same problem and already found the answer! I dont own a multimeter. In your paragraph for connecting the thermocouple, you write thermocouple connects to terminals 6 and 7. Do you think its going to blow my machine if I dont do correctly? Bliss. But Ive downloaded the wiring diagram for my machine. After autotuning, my values are: Mods for post 2018 - Gaggia Classic Pro / Gaggia Classic 2019 espresso machines View products Mods for pre 2018 - "Original" Gaggia Classic espresso machines View products sign up Ive set the Sn value to pt for the PT100. They are easy to unlock to get to all of the other settings, there are plenty of instructions on how to do this out there, but I didnt really need to go there. It doesnt matter which mains terminal is connected to hot and which one is connected to neutral. That is indeed not normal. Ill verify the cable, its one of the cables that came with the machine, so it could likely be the strands have slowly burned with time and just needs cutting and re-crimping, as you mention. The Gaggia Classic is a very capable espresso machine that gets even better with a couple of improvements. Brilliant article. My Gaggia Classic uses 18 awg wire for every connection inside. Hi Murat. Everything else (Auber and Mr Shades) includes an M4 thread on their pt100. The GC comes from the factory with a simple thermostat that turns on at a certain pre-set temperature, and turns off at another pre-set temperature. This resulted in the PID not powering up even though the machine did. I decided that for me, its not worth worrying about. Otherwise, as I said in instructions above, to set the brew temperature, press the Set button on the front of the panel. The YouTube video from wll about replacing the boiler made the whole thing very easy. CONCLUSION! I hesitate to identify wires by their color, as the wire colors in the Gaggia seem to vary from year to year and from region to region. Gaggia Stainless Steel 2 Cup Filter Basket with Pin Pressurised Crema 21000491. Do I need to make any adjustments to your procedure to make the PID handle the steam only (not caring about the group head)? So this suggests that the machine is getting much hotter and I reduced the the set point to 95deg from your recommendation of 103degC. Since I cant control that, if you want to use it, you will have to parse the data: each line, after the headings, should start with the PID parameter (P, I, D) followed by the reaction of the controller. Ive attached an album with my wiring below; Ive literally had an engineer look at it and The Gaggia is 100% at its original state except for the power taps on the neutral at the plug, the live on the brew switch, and the thermocouple to SSR wiring: https://imgur.com/a/rc4xtfz. Wanted to double check here for some observations a about three months after installing the PID. Yes it is normal for the brew light to blink like this after you install a PID. Connect the +/- leads from the PID to the SSR input terminals, paying attention to the polarity as these are DC. Out of the box, set, kit - Gasket Repair kit for,... 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