Main Output: SSR: Open circuit: 4V, Closed Circuit: 24V40mA DC Their kit is convenient, and is the way to go if someone doesnt feel ready to take on a 100% DIY project. Hi Brian. For more information, please see our I have a question on the pid, it is normal for the brew light to blink (off and) while it stabilizes to the target temperature. I have briefly thought about pre-infusion but the REX C-100 is not capable of this. Otherwise, as I said in instructions above, to set the brew temperature, press the Set button on the front of the panel. I do not suggest autotuning for this device because there is a huge improvement in temperature stability if you do the tuning by yourself. Gaggia Classic Mods PID kits, OPV kits, and other mod kits designed for various Gaggia espresso machines - drill down into kits relevant to your model of machine. I still have one question you may be able to answer. Fortunately, no damage done, and you can easily revert your changes. My only concern is that Mr Shades has two types of SSR units 40AA and 40DA. I managed the brew side PID and digging in for the steaming side, using PID alarm function of my XMT 7100 unit. These connectors are hard to reach, and are on very tight. Its getting very hot indeed so turned it off. Once you are able use the PID temperature readout to determine exactly what the steam cycle is, you know when to start steaming for more or less endless steam. There is a small copper pipe inside the boiler that draws the hot water from the top ( by design)which is quite clever but it still suffers from wild temp fluctuations intra shot even with a pid because cold water is being drawn in to replace the lost hot water for your espresso. I printed everything using Inland PLA+ filament. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. I am beginning to suspect that Gaggia created as many combinations of wiring configurations and colors as they made machines. However, when I flip the gaggia power switch to off, the PID LCD screen remains illuminated. It just overrides the PID and heats up the boiler to the factory preset steaming temperature.Links to parts [None are affiliate links]https://bit.ly/3gL9c95 - XMT 7100 PID unithttps://bit.ly/3xgAHhc - PT100 precision temperature sensorhttps://bit.ly/3wnZD6l - Fotek solid state relay 25Amphttps://amzn.to/3xamPFg - cable sleeve (different widths available)https://amzn.to/2RSAge0 - magnetic tape (example link, different widths available)https://www.thingiverse.com/thing:3671244 - 3D printed case file (print this locally)https://bit.ly/3pPphP0 - the unattractive aluminium enclosure if you wish to go that routeYou will also need:1. I used lamp cord for this. Does this happen even if you let the machine sit in steam mode and dont open the steam valve?. You could definitely drill out the adapter a bit to get the thermocouple to fit. you could use this guide on another kit as all of the pieces here are required for just about any pid. Be careful, the edges of the hole in the chassis are very sharp. Hi Jun, and thanks for the update. You can buy them at Ace hardware for about twenty five cents each. Youre giving up one of the two temperature readouts, so youll probably only see the actual temperature, as opposed to the target temperature, and I guess you can switch between the two with a button press. K type thermocouple, 0-500, 2m cable (6 feet). As for you steam mode question, if you followed this guide for installing your PID, the PID will have no effect on the the steam temperatures or functions. This steam blipping is a fairly common practice that people use to avoid boiler heater cycling, its just another way to do temperature surfing. Nevertheless, it will take some time to get it and make a change of the temperature sensor. Most likely they will have the same connector types as the REX-C100, but its always possible that you will need different connectors depending on what you end up ordering. It seems the wiring varies even within model years, and between model regions. Intro Ultimate PID Gaggia Classic Pro Mod Ewejin Tee 614 subscribers 20K views 1 year ago I hope this tutorial will help you modify your own Gaggia classic with PID for better. 103 or 105 is good. I decided to go the do-it-yourself route, ordering the parts separately, at a fraction of the cost of the kits. Heres a picture of the screws I used, with screwdriver for scale: Great article and development, congrats! 102 is even 3 degrees below my brew temperature. Recently purchased and upgraded Gaggia Classic Pro from Whole Latte Love in late November, and built/installed the Gaggiuino mod myself in February. Did you make any changes to the setting of the PID? https://photos.app.goo.gl/Xp37S3o3y6bqqrEk8 And this is the thermometer out the back. Open Source PID for Gaggia Classic and Classic Pro espresso machines. To find the neutral inside the GC, you have to test using a multimeter or voltage meter. Thanks for putting it together, this has helped me a lot in figuring out most of my doubts with a PID project for a Gaggia. Shall I connect it to terminal 5 or 2 of the on-off switch? I cant see why you couldnt. great article !!!! The code is reasonably well commented internally and variables are named such that it should be easy to find values you may need to change for your specific implementation, such as which pins have buttons assigned to them or the output pin for the SSR. If nothing happens, download Xcode and try again. Steaming will remain controlled by the Gaggia's stock thermostat. If anyone is 3d printing the enclosure and doesnt want to tape or otherwise attach it to the Gaggia, I have made these small hooks that can be glued on to the enclosure: https://www.thingiverse.com/thing:4938828. Did you try with the SSR unit 40 DA or 40AA? You want to connect the PIDs mains power terminal to the side of the Gaggia power switch that cuts out power when the machine is off. Otherwise, it all works properly now. Good idea Chris. I would be glad if you have any recommendations. The sensor has three wires: 1 x red and 2 x white. Im running into problems and I dont know if my REX-C100s starting values are the problem or if its my deviation with the wiring: Regardless of the temperature that i set on my PID, toggling the Gaggia on causes it to climb to 150-160C and then slowly decline to 118-125C, at which time it will heat up again. By the way there are three options as 12V, 24V and 85-250V DC. Does this pid control both the group head water and steam wand? add to list Tags Gaggia Classic (Pro) PID controller housing add to list Tags Gaggia Classic Pro Water Reservoir Lid add to list Tags Gaggia Classic Arduino & Touchscreen Housing . Hi Tom. Ive noticed that the PIDs output1 LED isnt illuminated after it climbs above my set temperature (103) but the boiler is getting heated up regardless. Gaggia classic pro PID question. I have to turn the set point on the PID down to about 85C to stop it boiling and getting steam and a great deal of sputter out of the portafilter. Final note: before going down the PID route, the easiest modification to make, and the best starting point for Gaggia Classic modifications, is lowering the brew pressure. Your email address will not be published. Im on [emailprotected] On top of the original price tag, international shipping, taxes, duties and currency exchanges can make obtaining these kits time consuming and even more expensive. Hello, thanks for the nice and valuable text. different wiring though. If the PID stays on when wired directly to mains power, you will need to figure out which power wire to tap into. Pantechnicon Wood kit installed on . 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). Also noticed if you use the steam for the milk it takes a lot of time to go back down (10min) to the set temp(i do run water through the boiler to bring the temp down, but it floats at a higher temp for a bit), does the steam affect the PID calculation or dont I need to worry about it? Hi, thanks for the articely, it was great help to do the initial steps. Then use the left/right buttons to select the digits to increase and decrease, and the up/down buttons to change the digits. You said here that the to get an M3 thread for the boiler. https://www.vertex-qis.co.uk/Manuals/PT100_con.pdf. Tags Slim PID Holder for Gaggia Classic Design to 3D. and our The connector is on the back of the machine, where mains power is tapped with a piggyback connector and goes to the PID. The steam mode drops to 102 before the power cycle kicks back in, with the valve open or closed. The Gaggia Classic has a max power consumption of more than 1400W, which can easily burn up a cheap SSR. Gaggia Classic Pro - Gaggia North America Commercial Steam Wand The commercial style steam wand comes equipped with a two-hole tip to perfectly craft velvety microfoam for lattes, cappuccinos, and more. I might even have the original box. The PID values are not saved if you change them through the menu so if you find a tuning you like and want to change the defaults, you'll need to do that in the code and then re-upload it to the device. However, depending on the seller, some settings may need to be changed. One bit of note and a request. I have a 2013 Gaggia Classic. Hi Andrue. I am going into speculation mode here I wonder if your Gaggia came with the steam and brew thermostat positions reversed? When the temperature stabilizes to within 1 degree of the target temperature, the auto-tuning is complete. If you really want these features, its probably time to think about upgrading your machine. This morning I pulled my first shot with the PID. Have you written an article regarding installing a Gaggiuino mod? THIS ASSUMES YOUR COMPETENT WORKING WITH AC CIRCUITS. Hi Jeff. I started with 103, and bumped it up to 105. https://www.thingiverse.com/thing:4243840. Its stimulated a lot of interesting discussion! PWM dimmer for preinfusion The 12 volt wires from the SSR connect to terminals 4 and 5. The boiler had been installed in such a way that it had pinched/nearly severed the upstream wire on the brew light. https://wiki.wholelattelove.com/File:GAGGIA_CLASSIC_2019_Wiring_Schematic.pdf Works on both US 110V and EU 220V machines.Parts existing in the video:LED light kit: https://coffee-sensor.com/product/gaggia-classic-or-pro-water-tank-led-. You should see no or very low voltage between neutral and ground, and you should see household voltage between the hot/load and ground. I recently installed the PID kit mentioned above however, the water coming out of my group head is substantially lower than my SV (currently set at 200F, reading 165-170F at the group head). Hi Chris, thanks for the reply. Hi Miguel. 4.6 de 5 estrellas 1,758 calificaciones. Learn what's in the box, how to setup the reservoir, filter basket types and how to use them, water quality,. Hi Chris, i noticed you used the K type thermocouple with the M4. 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). Your wiring looks right. Hi Anton. But follow chriss advice and be careful and you should be OK. And also use a rubber grommet to route your wires through the slots in the back of the chassis. Based on several comments, the wiring varies between units, even though they are the same model. I hope thats ok. 2. This will be the one at the bottom of the boiler, closest to the group head. This approach would make your machine a bit weird to someone who wasnt aware of what you did, as the brew function would be completely unusable without adjusting the temperature. Hi, I just completed the DIY kit last night using your guide and it all went perfectly! The only suprise for me has been that installing steam kit did not help me much because brewing kit alone helped to have great steaming power by only watching temperature climb up to 150 degrees. Other than that mine was a fairly straightforward procedure with no trouble at all. it is basically removing the main pump wire and re routing back to the PWM out. Hi Nitzan. TopBox with logo : Less than ten left The SSR is only rated for 5 amps. Thanks, David. Optionally, you can add some sleeving to the wires running between the Gaggia and the PID. The thermocouple connects to terminals 6 and 7. It should work as a replacement for the C-100 and SSR, but because the SSR is built into the PID, so your wiring will be a bit different. Required fields are marked *. The default target temperature on the PID will almost certainly not be correct. You really want these features, its probably time to get the thermocouple to fit steam wand route! 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