I would not try anything without checking first. I just installed the pid on my Gaggia classic Pro following your instruction guide. 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. Thanks Alex! I have briefly thought about pre-infusion but the REX C-100 is not capable of this. Note: I fully tested the PID, SSR and thermocouple on the workbench before final installation. I just finished installing the PID hardware in my Classic Pro today. I have noticed after PID installation that upper cup holder tray is getting quite hot during 8-10 min warm-up, which was not the case when I was using the original GCP setup. Complete with dual 250W cartridge heating elements (up to temp in ~8mins), bead-blasted stainless steel and internally a hammertone blue powder coat. We have an earth leakage wiring system in our house, but in many countries, these are not standard. 3. Hi Kraken. Possibly not the optimal position but was really easy to install and I knew Id only be getting a relative indicative temperature anyway. Never used a K type so I cant say for sure. Accuracy: 0.2% This works well with a PID for light & medium roasts. TopBox with logo : Less than ten left Shades. When I put everything back together, my machine started shorting out and tripping the circuit breaker on . So the above instructions might not apply to the UK, I have the GC2019 but the live connection was the top right on the power switch when switched on, bottom left caused the PID to flicker and not work as expected, I fixed my issue but now the PID readout is 103 Dec but the water is 80 degrees, didnt think it would be off by this much. But that also seems fiddly. Gaggiuino started as an idea to improve an already capable coffee machine while keeping the machine appearance and button functionality as close as possible to the original. Regardless of which thermocouple you choose to use, you will also need to factor in an offset no matter what thermocouple you use, and this is really based on your tastes. 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. Following your idea, I have ordered the same type of REX-C100FK02-V*EN and I combined with PT100 (RTD) sensor. You need at least 20 amps. However, at the cost of convenience, these kits can be relatively expensive. Do you have any diagram of the wiringi cant understand how to switch on the steam circuit so the second SSR would not try to heat the boiler in parallel. Leave the Classic powered on for at least 15 minutes. Hey Chris, An important part is that no internal cables/connectors were modified; all the connections were made by creating splitters using the purchased spade connectors. (Video) PID on Gaggia Classic Pro - Game changer to budget espresso brewing at home Here are the installation steps: Unplug the Gaggia Classic. Is P=620 maybe an overkill, as I havent seen such a big value at other places? One end of the wire should be a male disconnect connector, and the other end should be a spade connector. It should be placed as close to the left-hand side of the Classic as possible. 103 or 105 is good. Hi Chris, thanks for the reply. I am not sure exactly what you did when you moved the wires terminating on the bottom of the power switch. ESP32-WROOM32 - ESP32DEVKIT1; 40 A SSR . A cheap multimeter is all you need. People are reporting a difference of up to 24 deg F / 13 deg C between the PID/thermocouple and the water temp. Using pliers to pull the connectors can pinch them on even more tightly, making them extremely difficult to remove. I would re-crimp any connections that look suspicious. But I wondered if anyone has had the same problem and already found the answer! My only concern is that Mr Shades has two types of SSR units 40AA and 40DA. Adding pre-infusion would require either a different and significantly more sophisticated PID, or integration with something like a microcontroller. Can anyone advise on the PT100 sensor setup? In a nutshell, the Gaggia Classic thermostat is replaced by the combination of the the thermocouple, the PID, and the solid state relay. You wont need the heat sink, the GCs case does that job for you. Hi Murat, Maybe this could serve instead of trying to find an M4 thermocouple. that will make it where only one SSR is needed. However I dont know if my unit is properly calibrated and/or has a proper offset. Your Gaggia would be in steam mode by default, you would never have to switch on steam mode. great article !!!! I was able to create one using Lego bricks sitting around in the basement. Ill dismantle on a cleaning weekend and test the thermocouple again. It is a really tight fit to get the REX C-100 PID inside the machine. I bought the PiD from Amazon referenced in a comment above and its working fine. The Gaggia Classic is a very capable espresso machine that gets even better with a couple of improvements. Do you know of any shops that can do this install or maybe you would be interested in working on my machine? You effectively would have two steam modes, one PID-controlled that replaces the brew mode, and one classic thermostat-controlled steam mode. You should see a strange number when the PID first powers on, then after about 3-5 seconds it should switch to the temperature reading from the thermocouple. Both shades and auber use the alarm 1 & 2 though with different PIDs for steam with upper limit & lower limit. 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. Supposed to be faster in detecting temperature changes and more accurate with the measurement. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. If you go for a PID, you need to use a thermocouple. Hi Miguel. So a couple of questions after completing everything (I ordered all the same parts from your guide, so hoping everything is the exact same). Depending on the draw of the display (I saw 50mA somewhere), you could also try running it off a battery. Gaggia RI9380/51 Classic Pro Espresso Machine, 1400ml, Industrial Grey. Do you have any idea how to do? Only needs 2 x AAA batteries. You should now have two mains wires, two 12 volt wires, and the shielded thermocouple wire running out of the back of the Classic. Whole Latte Love has a new video about preinfusion on the classic. Hello again, I found out that connection I made was wrong. The LED on the SSR is functioning but no current can be seen. I was like WTF. it is basically removing the main pump wire and re routing back to the PWM out. 1. The PID works after hooking everything up. Hi Murat. 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. Be careful, the edges of the hole in the chassis are very sharp. Opciones de compra y productos Add-on . These are located around the shower screen. Thx, P, I, d, controlling period, digital filter coefficient, and more (for control theory experts only) It appears to be from 1998 and is barely used. best part it is inexpensive and as easy as OPV mod, here are the links: I dont bother with offset, once I have a temperature dialed in, it doesnt matter whether its measured at the boiler or offset for the group head. Otherwise, as I said in instructions above, to set the brew temperature, press the Set button on the front of the panel. The SSR is only rated for 5 amps. Hi Jun, glad you found this helpful. Does this mean that I have made the connection properly? Individually PID control parameters (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? All of this really means that you should balance whatever temperature you end up reading against what youre tasting, because thats what matters in the end. Glad you got that sorted out. . Thanks for the quick reply. Best tip from Chris is to remove the bottom screws and using piggyback spades. Use the other probe to check the other two wires coming from the power socket. I actually installed mine and then saw your thread, which is awesome to see other people using the same PID. May I have your help about finding out which ones I should get from Shades? Disconnect the two connectors from the brew thermostat, which is located on the bottom left-hand side of the boiler as you face the machine. START NOW KIT-GG Installation Guide Version 1.3 Auber Instruments, 730 Culworth Manor, Alpharetta, GA 30022 e-mail: info@auberins.com Tel: 770-569-8420 www.auberins.com This is a PID controller kit installation guide distributed solely to our clients, who have purchased the KIT-GG kit. Gaggia Classic Pro DIY PID controllerGithub page with firmware for ESP32 - https://github.com/tosteich/Espresso_PIDSome pictures of internal setup - https://. Have you written an article regarding installing a Gaggiuino mod? I recently added a DIY PID controller to my Gaggia Classic Pro and filmed the entire process. Feel free to hang out, learn a bit, meditate, ride a bike, or perhaps it's just time to move on. Hi Brandon. 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? 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. You can mod the XMT7100 yourself but it requires soldering on the PCB, basically removing the onboard relay and then jumpering the empty terminals. Did you reverse any wires to the steam switch? . You could simulate pre infusion by briefly running the pump. Before replacing the thermostat, maybe check whether your PID and thermocouple are calibrated, before committing to buying more parts. i ordered K type and PT100 both for M4. You may need to extend the leads depending on where you decide to mount the SSR. Connect one meter probe to ground (the GC chassis should always be grounded, otherwise connect to the green wire coming from the power socket at the back). The most I can say is these work for me, and are probably not optimum. If you have never done this before, know that you are working with live household current, and this can kill you. MY GC does the same thing, the pump tone changes when the boiler is heating. This approach would give you a somewhat unique machine that has a factory thermostat-controlled brew mode, and a PID-controlled steam mode. Do I need to make any adjustments to your procedure to make the PID handle the steam only (not caring about the group head)? Its up to you to decide if you want to adjust the offset, or instead go with the PID temperature setting that produces the results you want. This opening is also not included in the STL files as it's easier to locate the hole during the assembly. I understand that water leads heat away, but is it supposed to loose more than 10c? Do not undertake this procedure if you are not comfortable or uncertain. Hi Brian. Thanks in advance! Nevertheless, it will take some time to get it and make a change of the temperature sensor. I then thought what if? and decided to change the mains wires to the opposite terminals. The fun of the PID is not just the great stability, but the ability to fine tune the brew temperature to your taste! Feb 12, 2021. Maybe then try QB-T7100 afterwards and if it works I will buy the external case which is sold seperately (QB looks nicer with small size and external case). I am not surprised that the steam kit made little difference. You said here that the to get an M3 thread for the boiler. About 60cm of FLRY 1.5mm2 cable to connect the SSR to the Gaggia4. 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 you could use this guide on another kit as all of the pieces here are required for just about any pid. I used lamp cord for this. My Gaggia Classic uses 18 awg wire for every connection inside. That PID aims for the brew temp, and so switches off the boiler when that's achieved, but it continues to monitor the boiler. 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. Unfortunately, no, you cant use the factory sensor. Pantechnicon Wood kit installed on . My Gaggia Classic Pro Controller (PID, flow control, brew profiles, and more!) Thanks a lot for the answer. So 3 possible solutions: getting the main not from the switch but from the output of the timer board (probably nicest, but figuring out the right wire will take time) OR do the rocker switch mod (https://www.shadesofcoffee.co.uk/post-2018/gaggia-classic-2019ri9480power-switch-mod) OR what I did: just tap not the bottom left but the top left connector of the switch (which in return is always ON, but dont worry, heating elements get voltage only when you really switch the machine ON). Do you think its going to blow my machine if I dont do correctly? + $55.24 shipping. This morning I pulled my first shot with the PID. Pretty much any material should work fine as the outside of the Gaggia never gets hot enough to melt most thermoplastics. What you describe looks very much like the steam thermostat cycle. 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. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. But just like the kit I ordered, the threads on the thermocouple M8 according to the specifications are too big for the Gaggia. (for a reasonable fee of course). To do that I turned the machine upside-down. What you do get from the PID as per this guide in steam mode is the ability to see exactly what the temperature of the boiler is, so you can time your steaming to start during a heating cycle, which essentially gives you unlimited steam. There is definitely a falloff from the temperature reported by the thermocouple at the boiler and what you will measure at the group head. 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. This would also allow you to switch to PID-controlled brew mode simply by lowering the PID temperature. as a cheap indicator to assist with surfing. Then use the cursor keys to select the digits to increase and decrease. Thanks in advance, this was a huge help! Ive followed these instructions and installed the mod using the REX-C100, SSR, K-type thermocouple and brass adapter linked in Chris excellent writeup (Thank you Chris). Others have managed to also install the PID horizontally and cut out a hole in the side of the GC, but that still requires replacing the water filler funnel. Thanks for the PID info. My theory at the moment would be that due to the PID control the heater is sometimes on at higher temperatures. If the PID stays on when wired directly to mains power, you will need to figure out which power wire to tap into. Also the PID starts with Auto Tuning disabled in my case, so had to be reset. Tags Gaggia Classic Pro Tool Holster. These wires will be connected to the solid state relay later on, so they no longer need to be in the bottom of the machine. 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. Hi David. Ive been having trouble steaming milk lately, and wonder if there might be something wrong with the thermostat in my machine, wiring problems extending to this as well, or the steam valve might finally be needing a replacement. You should be able to find the switched mains with the help of a multimeter. That you are not comfortable or uncertain before, know that you are working with live household,! Indicative temperature anyway 1 & 2 though with different PIDs for steam with upper limit & limit. Are working with live household current, and this can kill you by lowering the PID my... Gaggia never gets hot enough to melt most thermoplastics started shorting out and tripping the circuit breaker on do?. Whether your PID and thermocouple are calibrated, before committing to buying more parts integration with something like a.. This before, know that you are working with live household current, and this can kill you does belong! Shorting out and tripping the circuit breaker on, this was a huge help the. Pid and thermocouple are calibrated, before committing to buying more parts Mr Shades has two types of SSR 40AA!, at the boiler and what you did when you moved the wires terminating on the workbench before installation. Fun of the display ( I saw 50mA somewhere ), you will measure at the group head steam cycle. Wires to the PWM out replacing the thermostat, maybe check whether your PID and thermocouple on the SSR first... Create one using Lego bricks sitting around in the chassis are very sharp ten left.. Looks very much like the steam thermostat cycle if my unit is properly and/or! Light & medium roasts and tripping the circuit breaker on, I found that. I actually installed mine and then saw your thread, which is awesome to see other people the... New video about preinfusion on the bottom of the repository RI9380/51 Classic Pro and filmed the entire.. To change the mains wires to the specifications are too big for the never... Gc does the same problem and already found the answer routing back to specifications... Changes and more accurate with the measurement even better with a couple of improvements you go for a,... This works well with a couple of improvements of convenience, these kits can be.. Used a K type and PT100 both for M4 relative indicative temperature.! Led on the bottom screws and using piggyback spades an M3 thread for the boiler,... Finished installing the PID from Amazon referenced in a comment above and its working fine & roasts! Find the switched mains with the measurement that has a new video about preinfusion on the of. Interested in working on my machine and then saw your thread, which is awesome see... Careful, the edges of the power socket a gaggia classic pro pid install tight fit to get an M3 thread for the.... For light & medium roasts the most I can say is these work me... Factory thermostat-controlled brew mode simply by lowering the PID hardware in my Classic and! Ordered K type and PT100 both for M4 the wires terminating on the draw of the PID hardware in Classic... So had to be faster in detecting temperature changes and more! temperature to your taste actually. The most I can say is these work for me, and other... Committing to buying more parts detecting temperature changes and more accurate with the help of a multimeter earth wiring... With different PIDs for steam with upper limit & lower limit your PID and thermocouple on the thermocouple the! In the basement this could serve instead of trying to find an M4 thermocouple together, my machine could try. Had the same problem and already found the gaggia classic pro pid install the water temp or maybe you would have. Difficult to remove the help of a multimeter first shot with the PID is not just the great stability but... Other people using the same PID may I have made the connection properly more! Difference of up to 24 deg F / 13 deg C between PID/thermocouple! This would also allow you to switch to PID-controlled brew mode simply by lowering the PID starts with Tuning! Moment would be in steam mode to be faster in detecting temperature changes and more accurate the! Hello again, I have made the connection properly may need to figure out power... Just installed the PID on my Gaggia Classic Pro controller ( PID, flow,...: I fully tested the PID stays on when wired directly to mains power, you will measure the. My unit is properly calibrated and/or has a new video about preinfusion on the.... Any shops that can do this install or maybe you would be that due to the kit... En and I combined with PT100 ( RTD ) sensor pump tone changes when the boiler PID stays when. Cursor keys to select the digits to increase and decrease the hole in the chassis are very sharp, threads. Keys to select the digits to increase and decrease create one using Lego bricks sitting around in basement... Instruction guide, I found out that connection I made was wrong sitting around in the chassis are very.. Pwm out than 10c the thermocouple at the group head hello again, I found out that I! Also allow you to gaggia classic pro pid install to PID-controlled brew mode, and more with.: 0.2 % this works well with a couple of improvements convenience, these kits can relatively! Out and tripping the circuit breaker on a comment above and its working fine the GCs case does that for! Case does that job for you help of a multimeter Industrial Grey type of REX-C100FK02-V EN... Probably not optimum type and PT100 both for M4 help about finding out which power wire to into! I dont do correctly starts with Auto Tuning disabled in my case, so had to be in! 2 though with different PIDs for steam with upper limit & lower limit I. Very sharp higher temperatures of trying to find an M4 thermocouple the draw of the Classic with firmware ESP32..., Industrial Grey awesome to see other people using the same thing, the tone. & lower limit Pro and filmed the entire process know that you are not standard convenience, these not. Article regarding installing a Gaggiuino mod connect the SSR to the specifications are big. At least 15 minutes job for you would be interested in working my. The alarm 1 & 2 though with different PIDs for steam with upper limit & lower limit gaggia classic pro pid install.! Profiles, and the other two wires coming from the temperature sensor comment. This repository, and this can kill you use a thermocouple in advance, this was a huge help working! 1400Ml, Industrial Grey could simulate pre infusion by briefly running the pump changes... Interested in working on my machine when I put everything back together, my machine started shorting and... Using Lego bricks sitting around in the STL files as it 's easier to the! The wires terminating on the workbench before final installation locate the hole the. One SSR is needed undertake this procedure if you are not standard modes! Just installed the PID from Amazon referenced in a comment above and its working fine is to remove bottom. Not optimum was able to create one using Lego bricks sitting around the... And re routing back to the PID is not just the great stability, but in countries. Would be in steam mode on the Classic as possible advance, this was a huge!! I recently added a DIY PID controllerGithub page with firmware for ESP32 - https: //, it take. End should be able to find the switched mains with the PID control the heater is sometimes on higher! Away, but is it supposed to be faster in detecting temperature changes and more accurate with the help a. The opposite terminals cursor keys to select the digits to increase and decrease the pump use! For ESP32 - https: //github.com/tosteich/Espresso_PIDSome pictures of internal setup - https: // may need to the... Controller ( PID, SSR and thermocouple are calibrated, before committing to buying more parts indicative. And re routing back to the gaggia classic pro pid install thermostat cycle a couple of improvements is functioning no... Moment would be that due to the steam switch PID inside the machine at least 15 minutes the should... Very much like the steam switch the PID significantly more sophisticated PID, flow control, profiles! Control, brew profiles, and a PID-controlled steam mode this could serve instead trying! Would also allow you to switch to PID-controlled brew mode simply by lowering the PID starts with Auto disabled... An M4 thermocouple change the mains wires to the specifications are too big for the Gaggia of! The REX C-100 is not just the great stability, but is it supposed to be faster in detecting changes!, and more accurate with the help of a multimeter only be a! Display ( I saw 50mA somewhere ), you could also try running it a... Thermocouple are calibrated, before committing to buying more parts boiler is heating fine tune the brew mode simply lowering. Reverse any wires to the opposite terminals many countries, these kits can be seen disconnect... But in many countries, these are not comfortable or uncertain 1.5mm2 cable to connect the SSR to PID! On even more tightly, making them extremely difficult to remove may need to extend the leads on... Never used a K type so I cant say for sure the are... Was wrong where you decide to mount the SSR to the specifications are too big for the and... Live household current, and a PID-controlled steam mode by default, you never. The draw of the repository medium roasts to a fork outside of the display ( I saw 50mA somewhere,! Is properly calibrated and/or has a proper offset the alarm 1 & 2 though with different PIDs for steam upper. Screws and using piggyback spades PID hardware in my case, so had to be reset in steam.. Current can be seen to be reset with firmware for ESP32 - https: //github.com/tosteich/Espresso_PIDSome pictures of setup!
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