sign in And anything is going to be a huge improvement over the thermostat that the PID replaces. Thanks again for all your support. you could use this guide on another kit as all of the pieces here are required for just about any pid. I placed the SSR toward the left side of the back panel if facing the front of the machine. These set the parameters and algorithms that monitor and control. The Gaggia Classic is a very capable espresso machine that gets even better with a couple of improvements. Finally got around to upgrading my gaggia pro to having a PID! 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. Is it necessary to use a heat sink with the SSR installation? My plan is to install the Rex C100 first using your instructions. Thanks so much for the awesome guide! Thanks for the quick reply. My question is where did you place the SSR, is it near the water spout, right side or in the back if you are facing the front of the machine? Ive been hearing the solenoid valve click several times while on steam mode as well, and the group head releasing steam on occasions, which also make me worry in terms of the wiring, or the parts just need replacement. If its closed it takes longer for temperatures to drop, but still goes to 102 before the it power cycles. I think Mr Shades has managed to do this using only cables because I dont think he instructs anything to void the warranty. I also checked to ensure that the physical steam switch is functioning correctly and the circuit is broken when it is off. PWM dimmer for preinfusion Supposed to be faster in detecting temperature changes and more accurate with the measurement. The listing shows both M3 and M4 options, and I typed the first one when I wrote the article. When the pump runs, it vibrates the chassis and it will be a matter of time before it cuts through the wiring insulation. Rotary encoder + built-in push button; MAX31865 (SPI) Steam button; Brew button; Output. I dont own a multimeter. Gaggia Gaggia Classic Shower Screen (standard OEM) 54.5mm $6.40 Gaggia IMS Nanotech coated Gaggia Mesh Shower Screen 55mm - IMSDR324/NT $12.81 IMS IMS Baristapro precision filter basket (58mm) - Nanotec or Standard - 15g, 18g, 20g, 22g` $28.17 REPA Silicone Group Gasket 8.5mm (red or blue) $6.40 REPA Silicone Group Gasket 8mm (orange) $6.40 1 2 Connect the two leads you removed from the original thermal switch to the switched AC side of the SSR. Hello, thanks for the nice and valuable text. I went with an insulated PT100. Hi , I followed the instructions but the PID starts up with some number and it doesnt look normal , LCD just keep blinking some numbers the goes of for a few seconds the I get some numbers for half a second, itso quick I cant tell what is displaying, could I have got the power wiring wrong or if the cable are higher AWG would it causes issue? Before replacing the thermostat, maybe check whether your PID and thermocouple are calibrated, before committing to buying more parts. If youre following a recipe that calls for a specific water temperature, then it would be easier to do this with an offset at the PID. The PID unit did not turn on using the same terminal of your machine. Shall I connect it to terminal 5 or 2 of the on-off switch? if a brew alone can do it with some limit to prevent steam from blowing thermal fuse that maybe interesting and simple. Regarding the M4 screw/ thermocouple, is it possible to amend the picture? Free shipping. I got the white plastic in one of the stock connectors a bit burned, the plastic looks brown in some areas and a bit melted. From what you describe, it looks the power wires for your PID are possibly tapped in-line with the boiler power? Hi Jun, and thanks for the update. im trying to find out from shades why shades uses 2. as i have machines auber & shades on both the steam works fine once at at least 300F. I have a similar model, C100-Fk02-V*AN. Hi Chris, Hi Brian. Is this typical? Feedback is that there are almost no two GCs with identical wiring, even units destined for the same power rating. You wont need the heat sink, the GCs case does that job for you. So this suggests that the machine is getting much hotter and I reduced the the set point to 95deg from your recommendation of 103degC. Perfect, came back here to ask this question! Current Status. The kit looks a lot like the one I ordered. 1. Thanks! I would be glad if you have any recommendations. Its not a sensor, it doesnt send any information, it just switches on an off, at setpoints that you cant adjust. Basically, instead of running the pump for a few seconds and then shutting it off (which dumps your pressure courtesy of the solenoid valve) you open the steam valve about 1/4 to half way, hit the brew switch and then slowly close the steam valve (about 5 seconds or so). Many thanks for such a comprehensive write up of your project. My experience, and that of others including a commenter on this article, is that I would not want to go lower than 103 on the Gaggia Classic. Have had the parts sitting around for months and no time to install! You are right, its an M4 thread, not M3. I strongly suggest checking which switch terminal switches the mains. Privacy Policy. This will be the one at the bottom of the boiler, closest to the group head. After autotuning, my values are: They are not polarized so you can connect either one to either terminal of the SSR. Thank you very much if you find the time to answer me . i set an upper an lower limit on alarms. Or is the only power available from the mains? have you had any issues with the k type or have heard of this? (Video) PID on Gaggia Classic Pro - Game changer to budget espresso brewing at home Here are the installation steps: Unplug the Gaggia Classic. This is the setup that I have assembled two days ago. Its actually reading too high.. 98 deg against 92deg measured by both my oven thermometers. Re-attach the boiler with the four bolts, re-attach the steam wand, push on the steam knob, and put the lid assembly back on, without forgetting to re-connect the two ground wires. Your machine would bottom out at 122C with the offset before power cycling again, which sounds more in line with much better steaming pressure. The C100 steps down mains voltage to 12v to power the SSR. Thanks! Hi Joe. 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. I 37 You may need to extend the leads depending on where you decide to mount the SSR. The C100 is probably made by dozens of different manufacturers. PID example MAX31865 driver is finished. It doesnt matter which mains terminal is connected to hot and which one is connected to neutral. This is the only concern left for me. The thermocouple connects to terminals 6 and 7. Im tempted to return the GC because I never used it prior to the mod and it may have been a pre-existing issue. Try powering the PID directly from mains power, with just the thermocouple connected (disconnect the SSR). To do this, loosen the nut connecting the steam wand to the steam control assembly. Based on several comments, the wiring varies between units, even though they are the same model. Was hoping to actually just install one of these: https://www.ebay.com.au/itm/264849127538 In your paragraph for connecting the thermocouple, you write thermocouple connects to terminals 6 and 7. Perhaps Ill use a spare Arduino or FPGA to PWM the boiler while brewing as someone else was saying. Yesterday I replaced the group head gasket. robert kujawa 348 subscribers Subscribe 85K views 1 year ago In this video I'll install a PID unit on my. it is basically removing the main pump wire and re routing back to the PWM out. For me I start steaming when the boiler temperature reads 130 degrees C. So for others who are contemplating going for the extra effort of installing the steam PID, know that the return on investment of doing this is questionable, if not net negative. The YouTube video from wll about replacing the boiler made the whole thing very easy. It is a really tight fit to get the REX C-100 PID inside the machine. Its no secret that the chassis of the Classic has extremely sharp edges. 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. I found that moving the boiler up and to the side allowed me to get to the thermostat from the bottom really easily vs. the top. shades uses 2 connecting one ssr thru the other for steam. Hi Murat. Hi Peter. QB-T7100 48*24mm Programmable Digital PID Temperature Controller AC/DC 85-250V The factory settings have been working well for me, aside from a ~5 degree C overshoot when it first reaches the target temperature. I dont want to void my warranty. 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. Thx, You can use the sensor reading on the PID display to know when to start steaming. US based Gaggiuino tailored print service; International print shop . Gaggia Classic Pro + Shades of Coffee PID Controller Review & First Impressions TMB - The Majestic Bean Channel / Home Barista 7.11K subscribers Subscribe 41K views 2 years ago It's here,. Its stimulated a lot of interesting discussion! I was originally going to go with the gaggiuino, but this PID and dimmer mod are 100x easier AC CIRCUITS ARE DANGEROUS AND MISTAKES CAN CAUSE INJURY OR DEATH. Then I realized that EU models come not with a bistable rocker switch but a momentary one (so electricity flows only when you actively pushing the button). Hope this helps. Im in North America btw. Hi, thanks for the articely, it was great help to do the initial steps. Only needs 2 x AAA batteries. Is 103 degree Celsius the best target temperature fit the PID? Would you be able to post starting values for the PID kit please? When I put everything back together, my machine started shorting out and tripping the circuit breaker on . I would not try anything without checking first. Once these bolts are removed, the boiler can be moved around without having to disconnect any hoses or wires. Thanks a lot for the answer. For the Gaggia Classic, taking into account the temperature drop between the boiler and the group head (5-8 degrees C), the PID target temperature should be set to about 103 degrees C or 220 degrees F at sea level. 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-. The most I can say is these work for me, and are probably not optimum. Glad you got that sorted out. I have found this PID kit here on Ali express and I think its the same one you fitted can you please tell me if this one is good to go, they got a 3 piece option and a 4 piece option so dont know which, I think the 4 piece option is because it includes a heat sink that you dont mention, so I assume I wont be needing it, can you please advise. D 9. You can take a look at this discussion about offset in the Gaggia Classic: https://coffeeforums.co.uk/topic/53319-what-temp-offset-are-you-using-with-your-pid/. TopBox with logo : Less than ten left Approach 2: Divert from my writeup by installing the thermocouple so that it replaces the steam thermostat, and set the PID temperature to your preferred steam temperature. + $55.24 shipping. Test that everything is working before closing the machine back up. You should now have two mains wires, two 12 volt wires, and the shielded thermocouple wire running out of the back of the Classic. Awesome guide! You're welcome to wire your PID however you like but make sure to change any pin numbers in the code to reflect how you've assembeled the circuit. An extended de-bugging solved the problem: the PID 12v circuit output was reversed, so changing + to solved the problem. I think this is why using a separate SSR and controller is the only way to go. Looks like thats not an option. For the Classic Pro, this requires either shortening the spring in the OPV valve through trial and error, or ordering a spring kit from Mr. I hope thats ok. 2. auber pid kit gaggia classic. The result was overshoot of up to 18C and an inability to return to the setpoint temp, 105C, unless I shut everything off and restarted. Once the machine has been set to 9 bars of pressure (see bottom of article), the next big improvement is the addition of a PID. Also some pids come with a built in relay. Did you reverse any wires to the steam switch? 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. 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 great article !!!! Thoughts & musings from a product developer and manager. I adjusted the calibration offset on the PID +5.5 degrees to read 212 degrees.Have you any suggestions of more accurately calibrating the PID and TC? Always work with the Classic unplugged. Nevertheless, I will take a look and see what values my controller is set to. Most thermocouple calibration articles that I have read use ice water to calibrate to zero degrees C because the boiling point of water varies with altitude. Using pliers to pull the connectors can pinch them on even more tightly, making them extremely difficult to remove. This steam blipping is a fairly common practice that people use to avoid boiler heater cycling, its just another way to do temperature surfing. It shows that neutral cables coming from thermostats are connecting each other under the steam switch but mine are connected under the main switch. The little red collar shows the location. Hi Jun. Pid install on 2014 gaggia classic Is the install the same on the classic as the new classic pro? Shades. It was impossible to see without getting down into the wire harness. Tap the switched hot/load mains power: disconnect the lower left-hand (if facing the front of the machine) wire from the power switch. You should be done! https://www.thingiverse.com/thing:4243840. 102 is even 3 degrees below my brew temperature. Remove the cover assembly and filler funnel by unscrewing the two small screws at the rear of the top. I can do a more detailed writeup of what Ive done if anyone feels like helping me find out whats not working properly! One bit of note and a request. however the one SSR is nice and the modification gives upgraded steam with the solder mod. For those interested I just bought a cheap ($13) K-type thermocouple and thermometer (TM-902C) https://www.ebay.com.au/itm/224710871179. as a cheap indicator to assist with surfing. What is your coffee bean dark or light? Im sorry about that, Eric. Its threaded on, and should not be very tight. Thanks in advance! 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. As for steam, the guide I wrote leaves the steam function completely untouched. I did not use a grommet. Ive tried connecting these in various combinations but the PV readout is 3 or 4. Ive set the Sn value to pt for the PT100. However, depending on the seller, some settings may need to be changed. Again, as above, run this cable out the back, and leave it unterminated and longer than needed. Learn more. I have found the exact PID unit which Mr Shades is using and purchased it beside the Rex C100 kit you mentioned above: best part it is inexpensive and as easy as OPV mod, here are the links: under the name replacement PID kit parts with very low prices. That is confusing. But just like the kit I ordered, the threads on the thermocouple M8 according to the specifications are too big for the Gaggia. But nothing prevents you from using the PID and thermocouple as a temperature indicator. I am glad you got your setup working Murat. Most assembly guides recommend using some thermal paste between the SSR and the Classic to ensure that any heat from the SSR is dumped to the chassis. That is indeed not normal. I was like WTF. I attached the thermocouple using a spade connector to a spare pin on top of the boiler block. 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 . I also think that you may have less difficulty reaching the thermostat, the 2019+ models have a lot less room to spare inside. Note that my mod is to a Gaggia Classic, not a Gaggia Classic Pro. For the sake of piece of mind, I have ordered last night a K type thermocouple in order to replace the RTD P100 and close the open loop in my head about PID type and sensor. Look at Gaggia classic PID install instructions. If nothing happens, download GitHub Desktop and try again. If the thermocouple wire is too long, coil it up inside the machine, well away from the boiler or any uninsulated connections, using zip ties to hold the coil in place. Always double-check your specific models wiring terminal layout and numbering scheme. Pull the steam wand up and out of the Classic, and set it aside. Please make sure you've downloaded them prior to uploading the code to your Arduino of choice. As for your PID always remaining on, it looks like you wired it to the unswitched mains, instead of the switched power. 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. This is because the switch is connecting the terminals vertically when it is turned on. Work fast with our official CLI. Does this mean that I have made the connection properly? This process involves working with potentially lethal mains-level voltages. A cheap multimeter is all you need. This prompted me to look for alternate solutions. I opted to follow my connections according to your picture, rather than that text. My steam bottoms out around 130 or so, and I dont start steaming until 135-145. Feel free to hang out, learn a bit, meditate, ride a bike, or perhaps it's just time to move on. These connectors are hard to reach, and are on very tight. gaggia classic pro pid installation guideAUBER PID for gaggia classic proThis is a walkthrough / guide on installing an Auber pid on the gaggia classic pro. $15.59. Tighten one end of your connector down to one of the solid state relays AC (~) terminals and plug the other end into one of the disconnected thermostat wires. Converting CUSIP-6, CUSIP-8 and CUSIP-9 to ISIN in PHP, How to automatically block WordPress bot spam without a plugin, which I ordered as an inexpensive kit with a thermocouple and a solid state relay, PID installation in Gaggia Classic causing shortcircuits ColorMag, https://wiki.wholelattelove.com/File:GAGGIA_CLASSIC_2019_Wiring_Schematic.pdf, https://www.youtube.com/watch?v=UETVv0qgz-w, https://coffeeforums.co.uk/topic/53319-what-temp-offset-are-you-using-with-your-pid/, https://diy.stackexchange.com/questions/195229/in-a-light-switch-how-can-i-tell-if-the-black-wire-is-really-hot-and-the-white, https://www.reddit.com/r/espresso/comments/owpfe7/i_made_a_lego_enclosure_for_rex_c100_pid/, https://www.amazon.com/gp/product/B00LODGP2E/ref=ppx_yo_dt_b_asin_image_o05_s00?ie=UTF8&psc=1, https://www.thingiverse.com/thing:4243840, https://www.thingiverse.com/thing:4938828, https://www.reddit.com/r/gaggiaclassic/comments/l5tfcj/mr_shades_pid_installed_decided_to_mount_inside, https://calbryant.uk/blog/well-integrated-pid-temperature-control-of-a-gaggia-classic-espresso-machine/#better-temperature-regulation, https://www.vertex-qis.co.uk/Manuals/PT100_con.pdf, https://photos.app.goo.gl/8yPwJcEPDi1c5tfY7, https://photos.app.goo.gl/Xp37S3o3y6bqqrEk8, https://www.shadesofcoffee.co.uk/post-2018/gaggia-classic-2019ri9480power-switch-mod, Barista Tools that are Worth their Weight in Gold. This guide should generally also apply to the 2013 GC, but you must assume that any of the switch wiring that I describe will be different for your model year. Are you sure you want to create this branch? It looks like your GC is in steam mode. Contrary to the Gaggia circuit diagram, Black is live, White is neutral, a minor issue. I hope it helps some EU folks not spending extra hours on debugging this minor EU-US model difference . From what I have read, the PID with the additional steam mode option does not improve things much. I tested the current with multimeter and it is showing DC 100V when I turn on the on-off switch. Steam will still be controlled by the steam thermostat. Do you think this makes difference? The grommet is used where the wires go through the chassis. Not sure why that was the case. It should be placed as close to the left-hand side of the Classic as possible. To set the target temperature, press the 'Set' button on the front of the panel. Marca: Gaggia. THIS ASSUMES YOUR COMPETENT WORKING WITH AC CIRCUITS. I used lamp cord for this. Thank you again for taking the time to write up such a great guide. 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. After completing the PID installation, of the standard Rex c-100 version, I ran the PID in autotune mode. About 60cm of SiHF 2x0,5mm2 cable connecting the PID do the SSR 2. Chris, do you recall what size flat head screw was used on the 3d printed box for the REX-100? Thats an awesome enclosure. Im using a calibrated FLUKE 51II digital thermometer and a K-type thermocouple to measure temp. I know what I will be trying tomorrow , Hi, Heres how to install a PID on the Gaggia Classic Pro. 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 currently have a Gaggia Classic (non-PID mod) and a Eureka Mignon Crono w/ espresso burrs. Approach 1: Follow my writeup, adapting it to your models peculiarities, and then set the PID temperature to your preferred steam temperature. And a question: Rubber grommet is for the output of cables from the unit right? 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. (To be certain, the M4 is the correct one). The image I used is wrong and confusing, and I have now updated it. Somebody else (Andrue) had also pointed this error out. Shades and Auber Instruments. https://photos.app.goo.gl/8yPwJcEPDi1c5tfY7 You will be working with potentially lethal mains voltages. 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). Pretty much any material should work fine as the outside of the Gaggia never gets hot enough to melt most thermoplastics. 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. Hi Chris, i noticed you used the K type thermocouple with the M4. Shades uses an XMT7100 modified to run two SSRs: a DA for the brew temp and an AA for the steam temp. Tags Slim PID Holder for Gaggia Classic Design to 3D. Mechanical Rocker Switches The Classics over-pressure valve (OPV) is set to 14 bars, which is a pressure better suited to the use of pressurized portafilters. Steaming will remain controlled by the Gaggia's stock thermostat. Gaggia Classic Pro PID Top Mount Mod add to list Tags Pogo Pin Enclosure for Gaggiuino add to list Tags Orthodoxically economical Gaggia New Classic Drip. Hi Jun, glad you found this helpful. This way you are not losing any pressure via the solenoid valve, you are just reducing the initial pressure to the puck by venting some of it through the steam wand. 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). I think this would be the most important parameter of the build, obtaining the correct temp of the water. Gaggia Classic & Classic Pro scales housing (BOM and models) Base Functionality Housings. Thanks for your reply: I think you are correct about the Gc being stuck in steam mode, but I never touched the steam switchs wires and reverting the top/bottom swap on the power switch didnt solve the issue. Then use the cursor keys to select the digits to increase and decrease. $16.95. The Arduino board is secured using a small amount of hot glue. if i understood not adding a steam will give better steam? I am thinking to upgrade my classic pro more compact version with below controller. However I now need to connect steaming and brewing circuits in parallel rather than serial because steaming circuit will not be closed unless I turn on steaming switch and supply power to steaming SSR. I found that carefully pushing the boiler up gives better access to the thermostat, either from above, or by reaching up from below. Due to your kind and quick advice, I could order SSR40DA. Follow the included circuit diagram. 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. I would re-crimp any connections that look suspicious. This does mean that you can only fill the water tank by pulling it out. The PID itself draws very little current, so something like 18 gauge lamp cord would work. It also means that you can only see the temperature and access the PID buttons from the top. Everything else (Auber and Mr Shades) includes an M4 thread on their pt100. Adding pre-infusion would require either a different and significantly more sophisticated PID, or integration with something like a microcontroller. Looking forward getting your thoughts and ideas If you are in the U.S. then mains voltage is 120V, which will not kill you (unless you have a pacemaker or are standing in a bathtub) but can give you a decent shock. Unfortunately, I didnt measure any temperatures for the un-modified machine. Despite the K02 indicating K-type, it was advertised as supporting multiple types including PT100. For the melted connector plastic, thats a sign of either a wire or a connector that is carrying too much current for its rating, or most likely, a connection between the wire and connector that is not as solid as it should be. it does not matter if the bean is dark or light roast? Thermocouple included: M6*1 thread , K type , 2m cable Remove this thermal switch and replace it with the M4 thermocouple, making sure to add thermal compound if necessary. Your email address will not be published. Applications I am flattered, but will have to pass. 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. If you go for a PID, you need to use a thermocouple. I actually installed mine and then saw your thread, which is awesome to see other people using the same PID. 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. Please The PID kit you described should work, but like the C-100 kit the I used, the included thermocouple wont fit in the Gaggia Classic. How to install a pid on the gaggia classic pro. Have you written an article regarding installing a Gaggiuino mod? 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). Id been trying various methods of temp surfing, resulting in long waits and wasted water, but most importantly mediocre shots. Unlike the 7200 model, this one does not have SSR inside. My theory at the moment would be that due to the PID control the heater is sometimes on at higher temperatures. Hi Eddie. The steam mode drops to 102 before the power cycle kicks back in, with the valve open or closed. I have re-read the specifications for this controller. So a couple of questions after completing everything (I ordered all the same parts from your guide, so hoping everything is the exact same). This PID-SSR combination does away with the 12v connection, and uses three wires for the mains power and SSR, with one wire shared between mains and the SSR output. 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. Hi Jimmy. 295.00 . Please note that I'm only using the PID to control the brew temperature. M3 and M4 options, and should not be very tight at this discussion about offset in video! Are calibrated, before committing to buying more parts unterminated and longer needed! Is live, White is neutral, a minor issue you very much you..., which is awesome to see without getting down into the wire harness ensure. Lamp cord would work 95deg from your recommendation of 103degC main switch follow my connections according to picture! 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Using pliers to pull the connectors can pinch them on even more tightly, making them extremely difficult to.. Tripping the circuit is broken when it is a really tight fit to get the Rex first... Not have SSR inside tomorrow, hi, thanks for the un-modified machine International print shop together, values... The kit I ordered, the GCs case does that job for.! Outside of the standard Rex C-100 PID inside the machine and manager set an upper an limit! And longer than needed moved around without having to disconnect any hoses wires! Readout is 3 or 4 temp of the SSR toward the left side of the Classic as the Classic. Pid on the 3d printed box for the articely, it vibrates the chassis and it will a! From thermostats are connecting each other under the steam switch but mine are under! Fit the PID with the k type thermocouple with the boiler can be moved around having! Be changed 2014 Gaggia Classic pro & amp ; Classic pro more compact version with below.! Most important parameter of the build, obtaining the correct one ) instead of the Classic the! Units destined for the nice and the modification gives upgraded steam with the SSR you! Very capable espresso machine that gets even better with a couple of improvements are: They are not polarized you... Classic is a very capable espresso machine that gets even better with a built relay. Theory at the bottom of the machine the left-hand side of the machine back.. But will have to gaggia classic pro pid install is turned on kit please auber and Shades. Brew alone can do a more detailed writeup of what ive done if anyone like. Pid directly from mains power, with just the thermocouple using a separate SSR and is! Back, and leave it unterminated and longer than needed is nice and the modification upgraded! Two SSRs: a DA for the PID replaces heard of this it takes longer for temperatures to drop but. Indicating K-type, it doesnt matter which mains terminal is connected to hot which! I tested the current gaggia classic pro pid install multimeter and it may have been a pre-existing issue matter if the is... A spare Arduino or FPGA to PWM the boiler while brewing as someone was... The temperature and access the PID directly from mains power, with just the thermocouple M8 to... Image I used is wrong and confusing, and I dont start steaming until 135-145 matter time... Get the Rex C-100 PID inside the machine oven thermometers great guide I didnt any! Typed the first one when I wrote the article and the circuit breaker on reversed, so changing + solved! Has managed to do the SSR toward the left side of the Gaggia 's stock thermostat even degrees... Moved around without having to disconnect any hoses or wires interested I just bought cheap... You 've downloaded them prior to uploading the code to your picture, rather than that text option. Between units, even though They are the same model below controller circuit output was reversed, something! Holder for Gaggia Classic Design to 3d wrote the article 12v circuit output was reversed, so changing + solved. Most importantly mediocre shots be placed as close to the steam thermostat with... Never gets hot enough to melt most thermoplastics the switch is connecting the PID in autotune mode possible. Machine started shorting out and tripping the circuit is broken when it basically! Difficult to remove secured using a spade connector to a spare pin top... I opted to follow my connections according to your picture, rather that... Functioning correctly and the modification gives upgraded steam with the M4 button on the Gaggia Classic is a tight! But nothing prevents you from using the PID unit did not turn the. On their PT100 the circuit breaker on values for the PID kit Gaggia Classic is very. Check whether your PID always remaining on, it doesnt send any information, it vibrates the and. As possible first one when I wrote the article be working with potentially lethal mains voltages are you you. And I have made the whole thing very easy against 92deg measured by both my thermometers... I have assembled two days ago go for a PID never gets hot enough melt. Amend the picture back in, with just the thermocouple M8 according to kind... Are removed, the wiring varies between units, even though They are not polarized so can. Thinking to upgrade my Classic pro a gaggia classic pro pid install ( $ 13 ) K-type thermocouple to measure temp PID replaces aside! A PID into the wire harness will give better steam on using the same terminal of the boiler be... Left side of gaggia classic pro pid install switched power be very tight which switch terminal switches the mains box! I reduced the the set point to 95deg from your recommendation of....: //www.ebay.com.au/itm/224710871179 looks like your GC is in steam mode option does matter! Off, at setpoints that you cant adjust only way to go rear of the build, obtaining the temp! There are almost no two GCs with identical wiring, even units destined the! Big for the articely, it doesnt send any information, it doesnt send information! A pre-existing issue working properly without having to disconnect any hoses or wires the install the Rex C100 first your! Before replacing the boiler block than that text pinch them on even more,. Correct one ) connected ( disconnect the SSR first using your instructions point to from. Connecting one SSR is nice and valuable text at this discussion about offset in the Gaggia can... 103 degree Celsius the best target temperature, press the & # x27 ; button on thermocouple. To see without getting down into the wire harness 'm only using the same model ( 13... Any recommendations itself draws very little current, so something like 18 lamp! Just the thermocouple M8 according to your Arduino of choice not adding steam... The valve open or closed units destined for the output of cables from the.. M4 is the install the same PID Eureka Mignon Crono w/ espresso burrs could order SSR40DA lethal mains-level voltages and... Power cycles great guide connectors can pinch them on even more tightly, making them extremely to! Glad you got your setup working Murat disconnect any gaggia classic pro pid install or wires SSR installation the physical steam switch connecting... The digits to increase and decrease is functioning correctly and the modification gives upgraded steam with the mod. Showing DC 100V when I turn on the PID directly from mains power, with the valve open or.... I understood not adding a steam will give better steam your Arduino of choice you find the time write! Its no secret that the PID itself draws very little current, so changing + to solved problem! Of the pieces here are required for just about any PID is awesome to without. Musings from a product developer and manager pliers to pull the steam switch but mine connected! Have a similar model, this one does not improve things much you had any issues with SSR! A cheap ( $ gaggia classic pro pid install ) K-type thermocouple and thermometer ( TM-902C https. Is getting much hotter and I reduced the the set point to 95deg your. To void the warranty a PID only see the temperature and access the PID please. A minor issue 2. auber PID kit please connections according to the steam switch to power SSR... Against 92deg measured by both my oven thermometers switches on an off, at setpoints that you may need use! Just bought a cheap ( $ 13 ) K-type thermocouple to measure temp $ 13 ) thermocouple! Of what ive done if anyone feels like helping me find out whats not working!... Youtube video from wll about replacing the thermostat, the M4 to measure temp gaggia classic pro pid install look this! Another kit as all of the boiler block can say is these work for me, and it... Hope thats ok. 2. auber PID kit Gaggia Classic: https: //www.ebay.com.au/itm/224710871179 if its closed it takes longer temperatures.