Glad you got that sorted out. Hi Jeff. Hello. The listing shows both M3 and M4 options, and I typed the first one when I wrote the article. I hesitate to identify wires by their color, as the wire colors in the Gaggia seem to vary from year to year and from region to region. It would also be a bit of a weird machine, but this approach wouldnt require any mods or re-setting of temperatures to use the machine to brew. Hi Joe. Hello, thanks for the nice and valuable text. Shades and Auber Instruments. So you could measure water temp at the group head at 180 deg F with the PID set to 204 deg F. There is some interesting information here: https://coffeeforums.co.uk/topic/53319-what-temp-offset-are-you-using-with-your-pid/. PID example MAX31865 driver is finished. I just started working as a barista. Thanks. Hi Chris, Ive followed these instructions exactly (thank you for your thoroughness) except for how the mains were tapped: I moved the two wires terminating on the bottom of the power switch to the top, and tapped them (as per another guide). By the way there are three options as 12V, 24V and 85-250V DC. I have an old Gaggia Carezza (uses the Gaggia / SaecoEF0030/A Boiler). I guess I could revert the machine and see what I get. The PID is really converting the mains voltage to 12VDC both for its internal operation and to drive the SSR, so the PIDs draw is quite small. The .ino file includes several libraries. Is it possible to do this with the GC factory temp sensor? Thats what Auber and Shades use, although they make their own. However I dont know if my unit is properly calibrated and/or has a proper offset. Hard to say how long it took because I was doing other things as well (dimmer switch, boiler pressure gauge, boiler rebuild, etc.) I hope thats ok. 2. Hope this helps. Depending on the draw of the display (I saw 50mA somewhere), you could also try running it off a battery. Follow the included circuit diagram. Gaggia Classic & Classic Pro scales housing (BOM and models) Base Functionality Housings. I was initially concerned about my wiring (and my GFI) but its reassuring to hear you have the same side effects. I had no problem with my mod other than the stickers on the back of the PID were reversed, so the terminal markings were not correct. Shall I change the P,I and D parameters manually and what is your suggestion to start with? 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? Please I wondered if you ended up testing both in the end. Thanks in advance. Work fast with our official CLI. 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). Hi Chris, I am gathering / ordering the parts specified and was surprised to find out the price for 3d printing price spiked. Gaggia Classic Pro/2019 complete wires and controller PID kit - 1/32DIN. 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. Privacy Policy. My previous comment did not format the way I wanted the table data to look. 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. Here are a couple of examples: Hi Chris, As for steam, the guide I wrote leaves the steam function completely untouched. Wanted to double check here for some observations a about three months after installing the PID. Thanks for your time. 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? I have found the exact PID unit which Mr Shades is using and purchased it beside the Rex C100 kit you mentioned above: I have only been drinking milk drinks and americanos because the shots I was pulling were always overly bitter, sour, or both, regardless of grind and quantity. My next thought was that the controller wasnt reading the correct temperature. Screen Enclosure; Internal Component Housing; Additional Gaggiuino models can be found in the Gaggiuino Model Collection or on Discord in the #mod-3d-design-ideas channel. I have changed the default value of the SL parameter to work with the RTD sensor (K thermocouple was default). Free shipping. Hi all, I recently bought a Gaggia Milady secondhand. 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. This video covers initial setup of the Gaggia Classic Pro espresso machine. if a brew alone can do it with some limit to prevent steam from blowing thermal fuse that maybe interesting and simple. . Remove the top of the machine and locate the boiler thermal switch. Have you checked the temperature accuracy of your PID & Thermocouple? Maybe this could serve instead of trying to find an M4 thermocouple. Does this pid control both the group head water and steam wand? And anything is going to be a huge improvement over the thermostat that the PID replaces. 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. If you used piggyback connectors, it should be a quick job to move the right one over to the correct switch terminal. It will also be completely reversible and much cheaper than ready made solutions!This clip can also be treated as a how-to instructional video for anyone wishing to go the DIY way. Many thanks for such a comprehensive write up of your project. 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. It doesnt matter which thermostat wire is connected to which of the AC terminals on the solid state relay. It appears to be from 1998 and is barely used. The REX-C100 should work out of the box, set for heating mode, with alarms disabled, and units set to Celsius. Does anybody have a Shades of Coffee pdf for the brew and steam setup on the gaggia classic, mines a 1998 classic coffee model, it would be much appreciated. 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. Double check that this is the neutral! ESP32 IO. The 103 is not a true 103, that is what is getting measured in the boiler wall, and there is also a temperature drop off between the boiler and the portafilter, so your final espresso temperature will be lower. 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. Do not work with the Classic plugged in. Because the PID runs on mains voltages, an enclosure is required. it does not matter if the bean is dark or light roast? Plug in a mains-rated cable connected to a piggyback spade connector, and then plug the original switched mains cable into the piggyback. And this is the thermometer out the back. Hello, there is another model without SSR built in with name 7100 instead of 7200. 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. To do that I turned the machine upside-down. The best simple info I found was a table that summarized what INCREASING each of the PID parameters would do: which I used to adjust my settings. (for a reasonable fee of course). This does mean that you can only fill the water tank by pulling it out. This design is intended to be as simple as possible in terms of the installation, and requires minimal modification to the Gaggia machine. Always double-check your specific models wiring terminal layout and numbering scheme. I found that carefully pushing the boiler up gives better access to the thermostat, either from above, or by reaching up from below. Have you noticed any problem using REX-C100FK02 and RTD PT100? Trim, terminate and connect the wires you routed out the back of the Classic to the PID. Feel free to hang out, learn a bit, meditate, ride a bike, or perhaps it's just time to move on. There is definitely a falloff from the temperature reported by the thermocouple at the boiler and what you will measure at the group head. Contrary to the Gaggia circuit diagram, Black is live, White is neutral, a minor issue. Hey. 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. If you really want to avoid the heating element switching while youre pulling a shot, you can blip the steam switch for a few seconds before brewing and that will bring the boiler temperature up a few degrees. Hi Jimmy. Spent some time playing with temps and pulling a lot of shots to dial it in and am very happy with the results. 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. I am glad you got your setup working Murat. Current Status. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Thanks for the PID info. 15,00 . It heats up to 93 +-1c and then goes down as soon as i hit the switch brew. The PID actually only attempts to achieve one temperature (brew temp), the second SSR bastardises a secondary output in order to achieve the second temperature (steam temp). Remove the thermostat. Did you reverse any wires to the steam switch? AC CIRCUITS ARE DANGEROUS AND MISTAKES CAN CAUSE INJURY OR DEATH. 3-Connect the other cable to the terminal on the on off switch, which is on top of or below the Live cable. From what I gather, youre located in the lower mainland (B.C.)? This is probably the most difficult part of the installation. I had no issues with the K type thermocouple. I deliberately avoided looking at the Mr Shades kits and instructions when I wrote this article, I dont want to steer people away from them. I used P:2,4 I:40 D:10 and Souf:0.2 which gives a shot stability around 2 degrees for single, 4 degrees for double shots. 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. Tags Slim PID Holder for Gaggia Classic Design to 3D. add to list. Gaggia Classic Pro. Tap the neutral mains: disconnect the lower wire from the mains connector at the back of the Classic. Followed the DIY guide for the xmt7100, highly recommend if you're looking to save money. Main Output: SSR: Open circuit: 4V, Closed Circuit: 24V40mA DC You can only buy them as spare parts. QB-T7200 48*24mm Programmable Digital PID Temperature Controller with Built-in 5A Solid State Relay XMT7100 AC/DC85~260V. I am going into speculation mode here I wonder if your Gaggia came with the steam and brew thermostat positions reversed? I was like WTF. You said here that the to get an M3 thread for the boiler. Realized with your last comment you dont have the offset in place, my bad. If the brand or source is questionable, I would recommend derating the current by a factor of 2 or 3 and going for a model rated for 25-40A just to be safe. I am not sure exactly what you did when you moved the wires terminating on the bottom of the power switch. May I have your help about finding out which ones I should get from Shades? No soldering or cut cases required for the . 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. I am thinking to upgrade my classic pro more compact version with below controller. 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? The lid of the enclosure is held by four screws. Shall I connect it to terminal 5 or 2 of the on-off switch? 1 RELAY alarm: Normal open, capacity 250V/3A AC or 30V/3A DC Regarding the M4 screw/ thermocouple, is it possible to amend the picture? All other variables aside, once you get a temperature that gives you the results you want, you will be able to get those results again, and again. Let me know your thoughts !!! I have a 2012 and am wondering if you had success and if the wires are as described in the article. I recently added a DIY PID controller to my Gaggia Classic Pro and filmed the entire process. I should pointed out that the temperature ranges I was referring to were with the -8C offset on the PID. I double checked all the wiring (inside and outside of the chassis) and eventually came to the conclusion that I had a faulty PID. Hi Kraken. 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. If in doubt, sit it out, and get some help. Input. I am now waiting for my PID unit and thermocouple with M4 head to arrive this week. Hi, thanks for the articely, it was great help to do the initial steps. Thank you very much if you find the time to answer me . I figured a video about this could be of interest to you, so here's the link: I have a 2018 wiring schematic and verified that the three switches correspond to the original configuration. Before replacing the thermostat, maybe check whether your PID and thermocouple are calibrated, before committing to buying more parts. Reddit and its partners use cookies and similar technologies to provide you with a better experience. It is still showing the M4 screw as the Crossed out/wrong one, and can be a bit confusing. Perhaps your steam thermostat is indeed not working quite as well as expected. Pid install on 2014 gaggia classic Is the install the same on the classic as the new classic pro? Between SSR and PID I was planning on using 22 awg wire given its a lower power requirement. r . Thanks heaps for the detailed instructions. Chris, i read some comments here about steam. It would be great to see how the machine is behaving without the PID, to get a baseline. Warning! Hi Murat. Do not over-tighten the adapter, it only needs to be finger-tight. 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. Is P=620 maybe an overkill, as I havent seen such a big value at other places? I have a 2005 GC with a Mr Shades PID kit installed. On thing I realised is that Mr Shades does not allow purchasing the parts seperately unless you already purchased the kit as a whole. Steam will still be controlled by the steam thermostat. I used lamp cord for this. 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. My problem is that since installing the mod, my machine gets way too hot and boils. Remove this thermal switch and replace it with the M4 thermocouple, making sure to add thermal compound if necessary. It would be almost impossible for me to give you a complete list of the parts from Mr Shades that you will need, as it will depend on the PID and SSR models you order. Other than that mine was a fairly straightforward procedure with no trouble at all. Unfortunately, I didnt measure any temperatures for the un-modified machine. Its getting very hot indeed so turned it off. If nothing happens, download GitHub Desktop and try again. 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). 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. Ill verify the cable, its one of the cables that came with the machine, so it could likely be the strands have slowly burned with time and just needs cutting and re-crimping, as you mention. The 12 volt wires from the SSR connect to terminals 4 and 5. You could definitely drill out the adapter a bit to get the thermocouple to fit. I 37 If you can share a picture of it, or a link, I can add it to the article. The C-100 can accommodate only one sensor/SSR, so you would only set it for brew temperature. You will probably want to drill pilot holes as well to prevent cracking the plastic. Thanks for the info, D. Your experience further goes to show that there is no standardized wire color coding in the GCP, even though black is usually hot and white is neutral. I grabbed some screws from my parts bin, I took whatever I could find that was the same color as my filament, and that would fit the holes and hold reasonably well. Steaming will remain controlled by the Gaggia's stock thermostat. The SSR is just a fancy switch and it should only be turning on and off, so depending on how you measure you may not see current. I am only using the Rex temporarily while working on a project with a Raspberry Pi (and the cost of the Rex was only a couple dollars when ordering the SSR), otherwise I would reprint the entire enclosure with the hooks built in. I start to run the steam at about 130 in the heating cycle on my setup.
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