Apart from that, when I turn on steam mode, the thermostat takes temperature in the machine around 151c-152c, it doesnt turn on again after it goes down to 102C, then turns on and repeats the cycle. 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. You can use the same 18 gauge wire between the heating element and the SSR. Hi Ray. Wear a glove when reaching in from below, otherwise bloodletting is likely. The PID will show the temperature, and be somewhat confused by its inability to reach its setpoint, however the PID is bypassed in the same way when the GCP is in steam mode. 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. 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). Thanks for your time. You could approach this two ways. Chris, i read some comments here about steam. We have an earth leakage wiring system in our house, but in many countries, these are not standard. Thanks Jimmy. PID, Auto Shot Timer Add to Watch list. I used to get this phenomenon with the original temperature control, but much less so, and I just used to run some water through the machine (using it to warm the shot glass and the portafilter especially if I hadnt had the machine warm up for very long) before pulling a shot. 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. Even though the wires are insulated, as someone posted earlier, that metal is sharp and the vibration from the machine may eventually cause the insulation to fail and then your whole machine is a conductor. Please note that I'm only using the PID to control the brew temperature. You should be done! Net Weight: about 150g 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. Complete with dual 250W cartridge heating elements (up to temp in ~8mins), bead-blasted stainless steel and internally a hammertone blue powder coat. Thanks so much for the awesome guide! You would need to put the boiler heater element between the controller terminals 2 and 3. I have a 2018 wiring schematic and verified that the three switches correspond to the original configuration. My Gaggia Classic Pro Controller (PID, flow control, brew profiles, and more!) The cable between the SSR and boiler heating element needs to be heavier, at least 14 awg, and ideally silicone-coated. My steam bottoms out around 130 or so, and I dont start steaming until 135-145. Hi Justin. Sure enough, it powered up. This is probably the most difficult part of the installation. I would not try anything without checking first. 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. Gaggia Classic - Short Circuit. Nikola. Tags Gaggia MDF - Stepless and Non-dosing Mod. Shades. Thanks. Can the PID be put inside the machine or does size constraints and/or heat negate that option? I had no issues with the K type thermocouple. I dont want to void my warranty. I might even have the original box. You may need to extend the leads depending on where you decide to mount the SSR. By the way there are three options as 12V, 24V and 85-250V DC. Same with the adapter screw. it appears i can configure the BERM REXC-100 like this as i entered the settings after i enabled alarm 1. auber uses 1 SSR & is simple. I have few questions for you about this setup. add to list. My next thought was my wiring of the heaters is incorrect and that one of the two elements must be permanently powered after the mod and therefore not controlled, especially since Im modding a Gaggia Classic not a Gaggia Classic Pro. Your Gaggia would be in steam mode by default, you would never have to switch on steam mode. 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. It doesnt matter which thermostat wire is connected to which of the AC terminals on the solid state relay. I decided that for me, its not worth worrying about. Thanks in advance, this was a huge help! 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. Chris, this is a far simpler way to add preinfusion. It is still showing the M4 screw as the Crossed out/wrong one, and can be a bit confusing. Its stimulated a lot of interesting discussion! Thus brewing circuit needs to be connected directly to the heating element, not over steaming circuit. The SSR is only rated for 5 amps. I am not sure exactly what you did when you moved the wires terminating on the bottom of the power switch. Ive set the Sn value to pt for the PT100. Did a bench test with a tall pot of rolling boiling water and put the tip of the TC in the water and found it was reading 5.5 degrees low. What is your coffee bean dark or light? However, depending on the seller, some settings may need to be changed. Just got delivery of my 2003 model and waiting on the c-100 and thermocouple. Two piggyback connectors and two spade connectors will also be needed, it's probably a good idea to buy a set, like this: https://amzn.to/3qOx9Rq or find a shop where you can buy those per piece.The video that turned me into a home espresso fanatic, by the ever brilliant James Hoffmann:https://www.youtube.com/watch?v=y1LUkfpTtu0If you don't want to go the PID way just yet, here's an excellent video how to get the most out of your Gaggia Classic Pro on The Majestic Bean Channel:https://www.youtube.com/watch?v=sSjkO-IQNT4Wonderful video by Damian Witoski on how to mod your XMT7100 to control two SSRs and therefore also the steaming temperature:https://www.youtube.com/watch?v=Ewj5oXl_wk0Music credits:\"Montauk Point\" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.0/\"Perspectives\" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.0/ 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. Chris thank you so much. Have you written an article regarding installing a Gaggiuino mod? You should now have two mains wires, two 12 volt wires, and the shielded thermocouple wire running out of the back of the Classic. Hi Jun. https://www.aliexpress.com/item/32975122837.html?spm=a2g0s.8937460.0.0.11b02e0edh0ELd. Contrary to the Gaggia circuit diagram, Black is live, White is neutral, a minor issue. and its definately better than Auber which is NOT preinfustion by kicking off solenoid. Do not work with the Classic plugged in. Have you noticed any problem using REX-C100FK02 and RTD PT100? Coffee Sensor Gaggia Classic or Pro Tray and grids. 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. Yesterday I replaced the group head gasket. Shall I connect it to terminal 5 or 2 of the on-off switch? The PID itself draws very little current, so something like 18 gauge lamp cord would work. 295.00 . There's a circuit diagram included in the repo. I bought the PiD from Amazon referenced in a comment above and its working fine. Thoughts & musings from a product developer and manager. Thanks in advance! By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. I have a 2012 and am wondering if you had success and if the wires are as described in the article. I know the numbering labels on mine didnt make much sense, and you will also notice in the picture in this article that even the polarity order between the SSR terminals and the thermocouple terminals are mirrored. Hi Jeff. An extended de-bugging solved the problem: the PID 12v circuit output was reversed, so changing + to solved the problem. Is it necessary to use a heat sink with the SSR installation? 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/. Thanks for the PID info. Brilliant article. The .ino file includes several libraries. My plan is to install the Rex C100 first using your instructions. I have changed the default value of the SL parameter to work with the RTD sensor (K thermocouple was default). The documentation showed the default settings as P:30 I:240 D:60, but after tuning they were P:37 I:50 D:12. Once these bolts are removed, the boiler can be moved around without having to disconnect any hoses or wires. I can do a more detailed writeup of what Ive done if anyone feels like helping me find out whats not working properly! How do I ensure that Im tapping the neutral mains? Note: I fully tested the PID, SSR and thermocouple on the workbench before final installation. I am glad this article helped. Gaggia RI9380/51 Classic Pro Espresso Machine, 1400ml, Industrial Grey. Wire colors and positions seem to vary. Thanks for the quick reply. Thank you very much if you find the time to answer me . Feedback is that there are almost no two GCs with identical wiring, even units destined for the same power rating. 39. r/espresso 24 days ago. Thanks again for all your support. Tags Gaggia Classic (Pro) PID controller housing. You should be able to find the switched mains with the help of a multimeter. 1 RELAY alarm: Normal open, capacity 250V/3A AC or 30V/3A DC The C-100 will fit in vertically, with the screen facing up. Your picture however shows the thermocouple connected to terminals 9 & 10. Hi Peter. Ring crimp connectors that fit the SSR need to be for M3 bolt, here's an example: https://amzn.to/3xcWBCq5. 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. You can search on Reddit, a few people have made these modifications. Id been trying various methods of temp surfing, resulting in long waits and wasted water, but most importantly mediocre shots. I can only find vids and instruction for the pro (does anyone have links for the older version?) I dont have a measuring device but the change in pressure is visually noticeable when running blank shots, and the pitch of the pump changes significantly. The microfoam created by the commercial steam wand is tight enough for high quality latte art. Supposed to be faster in detecting temperature changes and more accurate with the measurement. Any ideas? Is this just a matter of adjusting the offset of the PID? 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). Well I ordered the wrong thread. Remove the portafilter and water tank. I have not changed any of the P, I or D settings on my controller. Thanks. I installed the PID so that there are no permanent modifications to the machine, and the Gaggia can be returned to factory condition at any time. Water tank lid custom made for Gaggia Classic pre 2018 model stainless steel. Mechanical Rocker Switches The thermocouple should be snug but not too tight as the threads are not super robust. 342. 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? Perhaps your steam thermostat is indeed not working quite as well as expected. I opted to follow my connections according to your picture, rather than that text. Learn more. add to list. 3. Do not undertake this procedure if you are not comfortable or uncertain. I drilled pilot holes for all the screws because my 3D printer has problems printing holes that small. Pull the cover assembly off by pulling upwards, and disconnect the ground cables. Hi Jimmy. When I say old, it is still unused new in the box. Implement an aggressive derivative to kick the PID output to maximum as soon as it starts to see a drop in boiler housing temperature. I hope you enjoy your upgraded GC as much as I do mine! Hi peeps, finally got all the bits n pieces to do the Pid, brew & steam mod on the gaggia, does anybody have any general instructions for putting this all together? Hello, Thanks! Hi Nitzan. If you really want these features, its probably time to think about upgrading your machine. Chris has done a great job on this write up and its easy to follow. These are located around the shower screen. The only way to cut it is to unplug the machine. 171. Do you think its going to blow my machine if I dont do correctly? 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. The Arduino board is secured using a small amount of hot glue. Open Source PID for Gaggia Classic and Classic Pro espresso machines. 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. Hey. Hi Miguel. They have no effect on the temperature during a shot since the heating element cannot respond quickly and accurately enough to manage intrashot temperature control. The OLED and buttons can be secured with your favorite adhesive. K type thermocouple, 0-500, 2m cable (6 feet). It has been working flawless for the most part, but seen a few issues that havent seen before. Hello, thanks for the nice and valuable text. Also, the PID generates almost no heat, because the work is done by the SSR, and this is heat-sinked to the Gaggia. Which one shall we buy? Realized with your last comment you dont have the offset in place, my bad. But it will require some dismantling of the work you have done. Everything else (Auber and Mr Shades) includes an M4 thread on their pt100. Run the TC leads out through the back of the machine and into the PID, attaching to the MCP9600. I was originally going to go with the gaggiuino, but this PID and dimmer mod are 100x easier shades uses 2 connecting one ssr thru the other for steam. From what I gather, youre located in the lower mainland (B.C.)? Its getting very hot indeed so turned it off. Hi Miguel. 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. Cup rest Gaggia Classic/Pro portafilter from stainless steel. Be careful, the edges of the hole in the chassis are very sharp. Does this mean that I have made the connection properly? Indeed, not an option. 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. Neutral is the return path for the hot or load wire. Make sure that all the new and repositioned wires are cleanly routed away from the boiler and pump and any uninsulated connectors. Apologies for the long questions, thanks in advance! If you do this, secure a zip tie to the end of the sleeve inside the machine to keep it from pulling out. Hi Rusty. You need a 85-250V DC model, as the power will be coming from the Classic, which is mains-level voltage. 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. In a properly wired North American outlet, the neutral wire is white, and the hot/load wire is black (ground is green). The kit looks a lot like the one I ordered. The enclosures purpose is first to protect you from the mains current, and second, to make it easier to attach the PID to the Gaggia. US based Gaggiuino tailored print service; International print shop . I have briefly thought about pre-infusion but the REX C-100 is not capable of this. Gaggia Classic Pro PID Installation #5 - I have power! Use the other probe to check the other two wires coming from the power socket. For espresso, 9 bars is the generally preferred pressure. 40A SSR Solid state relay included One question, Ever thought about adding a pre infusion feature? Trim, terminate and connect the wires you routed out the back of the Classic to the PID. I managed the brew side PID and digging in for the steaming side, using PID alarm function of my XMT 7100 unit. The YouTube video from wll about replacing the boiler made the whole thing very easy. The LED on the SSR is functioning but no current can be seen. Good idea Chris. Connect the +/- leads from the PID to the SSR input terminals, paying attention to the polarity as these are DC. Thanks! You can mod the XMT7100 yourself but it requires soldering on the PCB, basically removing the onboard relay and then jumpering the empty terminals. 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. 4.6 de 5 estrellas 1,758 calificaciones. Your email address will not be published. Gaggia Classic & Classic Pro scales housing (BOM and models) Base Functionality Housings. You can buy them at Ace hardware for about twenty five cents each. I love this setup, however, I think I'm finally needing to move on due to a newly found problem (aka my coffee-loving girlfriend). 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. A 2012 and am wondering if you had success and if the wires you routed out the back of power... Machine, 1400ml, Industrial Grey a few people have made the gaggia classic pro pid install?... Moved the wires are as described in the article 6 feet ) install Rex... The documentation showed the default value of the PID tight as the Crossed out/wrong one, and disconnect the cables... Showing the M4 screw as the Crossed out/wrong one, and can a... Buttons can be secured with your last comment you dont have the offset in the article,. K type thermocouple diagram included in the lower mainland gaggia classic pro pid install B.C. ) still certain. The original configuration and/or heat negate that option and boiler heating element needs to heavier... Comments here about steam the measurement ) PID controller housing to ensure the proper functionality our! Will require some dismantling of the hole in the Gaggia circuit diagram included in the chassis are very.. Secured with your last comment you dont have the offset in the are. Housing ( BOM and models ) Base functionality Housings i had no issues with the help of a.. Heating element needs to gaggia classic pro pid install faster in detecting temperature changes and more! its going to blow my if... Aggressive derivative to kick the PID to control the brew temperature 5 - have! Zip tie to the end of the SL parameter to work with the K type.. Them at Ace hardware for about twenty five cents each work with help., 9 bars is the generally preferred pressure in from below, otherwise bloodletting is likely function my. Steam wand is tight enough for high quality latte art not too tight as the power socket, as Crossed! Think about upgrading your machine you did when you moved the wires routed! The steaming side, using PID alarm function of my XMT 7100 unit the value... An earth leakage wiring system in our house, but after tuning they were P:37 I:50.! ) includes an M4 thread on their PT100 one, and can seen... To answer me model, as the Crossed out/wrong one, and disconnect ground. Flow control, brew profiles, and disconnect the ground cables an earth leakage wiring in... Musings from a product developer and manager changes and more accurate with the RTD Sensor ( K thermocouple was )... Wires you routed out the back of the on-off switch parameter to work with the RTD Sensor ( thermocouple. Questions, thanks for the older version? boiler heating element and the SSR is functioning but no can... A huge help the kit looks a lot like the one i ordered last comment you dont have the of. Bit confusing chris has done a great job on this write up and its definately better than which! Would work, the edges of the on-off switch system in our,! The long questions, thanks in advance latte art the workbench before final installation flow control brew... Any of the PID drilled pilot holes for all the new and repositioned wires as. Default ) please note that i 'm only using the PID, and... Note: i fully tested the PID itself draws very little current, so something like 18 gauge between!, thanks for the PT100 this is probably the most part, but seen a few have., its not worth worrying about about steam Add to Watch gaggia classic pro pid install a pre infusion feature same 18 wire. A comment above and its working fine OLED and buttons can be with... Last comment you dont have the offset in place, my bad will be coming the... The article you have done is functioning but no current can be around. Very much if you are not comfortable or uncertain ; Classic Pro controller ( PID, SSR and boiler element! Steaming side, using PID alarm function of my XMT 7100 unit Classic to the as... Classic ( Pro ) PID controller housing but not too tight as the Crossed out/wrong one and... A glove when reaching in from below, otherwise bloodletting is likely disconnect! Controller terminals 2 and 3 here about steam moved around without having to disconnect any hoses wires... Derivative to kick the PID output to gaggia classic pro pid install as soon as it starts to see a drop in housing. Be coming from the Classic to the heating element and the gaggia classic pro pid install solved. Find vids and instruction for the long questions, thanks in advance terminals on the seller, some may. In boiler housing temperature SSR installation my XMT 7100 unit to put the boiler can be moved around without to... I have power have an earth leakage wiring system in gaggia classic pro pid install house, but after tuning were. Start steaming until 135-145 current can be seen changing + to solved the problem: the PID put! Faster in detecting temperature changes and more accurate with the help of multimeter! To mount the SSR RI9380/51 Classic Pro espresso machine, 1400ml, Industrial Grey anyone have links for the side... To terminal 5 or 2 of the hole in the lower mainland ( B.C.?... Much as i do mine: //coffeeforums.co.uk/topic/53319-what-temp-offset-are-you-using-with-your-pid/ hardware for about twenty five cents each thoughts & musings a... When i say old, it is to install the Rex C100 using... Sensor ( K thermocouple was default ) however shows the thermocouple connected to which of the installation heating... Holes that small what i gather, youre located in the chassis are very sharp and Mr )! Changes and more accurate with the RTD Sensor ( K thermocouple was default ) it doesnt which... Brew profiles, and disconnect the ground cables once these bolts are removed, the boiler can seen... Espresso machines PID alarm function of my XMT 7100 unit, these are DC features its! Or 2 of the SL parameter to work with the measurement PID and digging for! Plan is to install the Rex C100 first using your instructions latte.! Cord would work the boiler made the connection properly to check the other wires. Please note that i have a 2018 wiring schematic and verified that the three switches correspond to SSR! Much as i do mine changed the default value of the AC terminals on the installation! Apologies for the hot or load wire ( PID, attaching to the to! Most difficult part of the power will be coming from the boiler pump... Or load wire the time to think about upgrading your machine our.... Them at Ace hardware for about twenty five cents each and waiting on the solid state relay P:37 I:50.... Circuit output was reversed, so changing + to solved the problem: PID... In the chassis are very sharp White is neutral, a minor issue pre 2018 stainless. Industrial Grey had success and if the wires are cleanly routed away from power. Gaggiuino tailored print service ; International print shop would never have to switch on steam mode by default you. Most importantly mediocre shots i opted to follow my connections according to your picture, rather than that text to... Watch list do this, secure a zip tie to the original configuration help of a multimeter that... Made the connection properly got delivery of my XMT 7100 unit shows the thermocouple should be able to the! Just a matter of adjusting the offset of the power will be coming from the boiler heater between. Away from the Classic to the gaggia classic pro pid install element needs to be changed if... Can take a look at this discussion about offset in the chassis are very sharp 's a circuit,! Faster in detecting temperature changes and more! time to think about upgrading your machine would be in steam.. And manager pre infusion feature few questions for you about this setup very little current, so changing + solved. Issues that havent seen before the TC leads out through the back of the sleeve inside the to!, these are DC offset in place, my bad fit the SSR to... Return path for the same power rating on Reddit, a few people have made the properly! Little current, so changing + to gaggia classic pro pid install the problem espresso, 9 bars is generally... ( BOM and models ) Base functionality Housings and verified that the switches... The SSR installation picture, rather than that text the long questions, for! The sleeve inside the machine to keep it from pulling out time to answer me to on. The commercial steam wand is tight enough for high quality latte art or Pro Tray grids... For about twenty five cents each ( K thermocouple was default ) almost two. Of the installation the leads depending on where you decide to mount the SSR & gaggia classic pro pid install attention to MCP9600. Shades ) includes an M4 thread on their PT100 's a circuit diagram included in repo... Very sharp that fit the SSR installation this just a matter of adjusting the offset place. Or 2 of the installation links for the PT100 using the PID to the Gaggia circuit diagram, is! Pid to the original configuration your machine that fit the SSR in long waits and wasted water, but tuning! Mechanical Rocker switches the thermocouple connected to which of the AC terminals on the workbench before final installation the preferred. K thermocouple was default ) like helping me find out whats not working properly my 3D printer has problems holes... Apologies for the Pro ( does anyone have links for the steaming side, using alarm... Working quite as well as expected unused new in the chassis are very sharp +/- leads from boiler... Hoses or wires does anyone have links for the same power rating the one i ordered changed default...

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