My Gaggia Classic uses 18 awg wire for every connection inside. And this is the thermometer out the back. (for a reasonable fee of course). Id really love to do the install, however I have ZERO experience in electrical installation. Feedback is that there are almost no two GCs with identical wiring, even units destined for the same power rating. Select the preferred temperature unit so that all parameters are pre-set properly for you. This feature allows you to operate the brew pump manually, with the timer as a reference. So far the temp range Ive seen when the heater cycles on/off (after ~30 mins of warming up) is ~90C to ~97C. Before replacing the thermostat, maybe check whether your PID and thermocouple are calibrated, before committing to buying more parts. Hi Brian. One last question: Auber and Mr Shades are calling their sensors PT100 while mine is K type thermocouple. Hi Chris, I completed the whole project both for brewing for PID and steaming via alarm. I double checked all the wiring (inside and outside of the chassis) and eventually came to the conclusion that I had a faulty PID. Are the steps here suitable for older machines like mine? That controller is an interesting find. Since installing the modification, I get a huge amount of steam and spray coming out of the portafilter when I first operate the pump so much so, that it sprays all over the worktop around the machine! This will give the REX-C100 enough time to auto-tune its PID settings for the boiler. Brass is soft and easy to drill, and all the adapter needs to do is provide a connection between the thermocouple and the boiler, so there would be no hard in doing this. The on/off temperature can be adjusted by the user. Hi Miguel. Log in or sign up to leave a comment. And a question: Rubber grommet is for the output of cables from the unit right? Useful Video. Thanks for the catch, I will correct the article. Close the PID enclosure, and attach it to the side of the Classic. This would explain the constant switching on and off. Hi Chris, if i understood not adding a steam will give better steam? Thanks in advance, this was a huge help! If not, can you think of any potential mistakes I made along the way? You wont need the heat sink, the GCs case does that job for you. The way I wired the PID leaves it powered on as long as the main power switch is on. This would also allow you to switch to PID-controlled brew mode simply by lowering the PID temperature. Approach 1: Follow my writeup, adapting it to your models peculiarities, and then set the PID temperature to your preferred steam temperature. I also checked to ensure that the physical steam switch is functioning correctly and the circuit is broken when it is off. Hi Eddie. The sensor has three wires: 1 x red and 2 x white. My previous comment did not format the way I wanted the table data to look. 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. I decided that for me, its not worth worrying about. Should this be cause for concern, maybe caused by an error in wiring the PID? i heard from some that the PT100 with the M4 is more accurate. P, I, d, controlling period, digital filter coefficient, and more (for control theory experts only) save. I'd like to increase the brew temp a couple of degrees but have no idea how to do this. The boiler had been installed in such a way that it had pinched/nearly severed the upstream wire on the brew light. 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 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? I think Mr Shades has managed to do this using only cables because I dont think he instructs anything to void the warranty. Thanks. Is it possible to do this with the GC factory temp sensor? Great guide. https://wiki.wholelattelove.com/File:GAGGIA_CLASSIC_2019_Wiring_Schematic.pdf The PID will be more or less bypassed when the steam switch is on, it will just stop trying to heat because the boiler will be over the PIDs target temperature. My problem is that since installing the mod, my machine gets way too hot and boils. Once these bolts are removed, the boiler can be moved around without having to disconnect any hoses or wires. Perhaps your steam thermostat is indeed not working quite as well as expected. Pull the steam wand up and out of the Classic, and set it aside. (For orders placed recently in 2022) If you placed the order as a guest, you cantry the, (For orders placed a while ago) Please log in and download the manual from your order history page. I have read reports of measurements of up to 8 degrees C lower at the portafilter. If you want to defeat this feature, please add this optionto your order. Bean to cup coffee machines and semiautomatic coffee machines for home. and its definately better than Auber which is NOT preinfustion by kicking off solenoid. Hi Jeff. Do you have any idea how to do? Unfortunately, I didnt measure any temperatures for the un-modified machine. Hello, If in doubt, sit it out, and get some help. My only concern is the diagramm I downloaded from whole latte love shows different connections then what I have seen in my unit 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. Hi Rusty. I have a 2012 and am wondering if you had success and if the wires are as described in the article. So there is more or less no concern about PID heat and the PID enclosure. (Markings can be found on front side of the plug) 2-Check the color of the cable which shows L sign on the plug- meaning Live. My install went as smooth as I hoped all my wire colours and locations were identical to yours (Phewf). Well I ordered the wrong thread. This wont be enough for the boiler heating element. Hi Chris, I appreciate your tutorials on the PID install. 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. Tap the neutral mains: disconnect the lower wire from the mains connector at the back of the Classic. From the factory, the GC has two thermostats, one for brew, which the thermocouple + PID + SSR replaces, and one for steam, which stays untouched. By the way there are three options as 12V, 24V and 85-250V DC. The steam mode has its own thermostat, which is very similar to the brew thermostat that the PID replaced, except that its temperature range is more or less as you described. Yes it is normal for the brew light to blink like this after you install a PID. Please see the compatible model list below (Note 1 on the bottom). We ship every business day from our two warehouses located in Milton, Ontario and Calgary, Alberta. Wear a glove when reaching in from below, otherwise bloodletting is likely. What exactly is a mains-rated wire, and where would I find one? The kit includes all the parts and the materials to complete its function. It is the perfect place. Some people have done this by replacing the water filler funnel and 3D printing a replacement cover. PID Control Kit for Rancilio Silvia Espresso Machine, White LED $164.99. To set the target temperature, press the 'Set' button on the front of the panel. I dont own a multimeter. Thanks! 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. If you can share a picture of it, or a link, I can add it to the article. Auber Instruments PID Kit for Gaggia Classic. 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. It should be placed as close to the left-hand side of the Classic as possible. On thing I realised is that Mr Shades does not allow purchasing the parts seperately unless you already purchased the kit as a whole. It has a blue led not red like pictured.The kit works for 115 VAC and 240VAC. 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. I then thought what if? and decided to change the mains wires to the opposite terminals. One end of the wire should be a male disconnect connector, and the other end should be a spade connector. The YouTube video from wll about replacing the boiler made the whole thing very easy. For RI9403, please check KIT-GGX-EU. 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. I think this is why using a separate SSR and controller is the only way to go. Auto-tuning PID cooling/heating control Chris has done a great job on this write up and its easy to follow. Consult the instructions that came with your PID to make sure. Did you have any problems or stumbled upon anything unexpected? Hi Eddie. Would you be able to post starting values for the PID kit please? Im using a calibrated FLUKE 51II digital thermometer and a K-type thermocouple to measure temp. Steam will still be controlled by the steam thermostat. Also really awesome write up. Submit a Request Call Us at (888)-389-4123. Did you reverse any wires to the steam switch? While the steam switch is engaged, the PID serves to provide a temperature reading of the boiler, which is great, because you can use that temperature reading to time when to start steaming for maximum steam performance. best part it is inexpensive and as easy as OPV mod, here are the links: There is definitely a falloff from the temperature reported by the thermocouple at the boiler and what you will measure at the group head. The A vs E should not make a difference as I am not using alarm function, and am using it with a 3-wire PT100. Be careful, the edges of the hole in the chassis are very sharp. This video clearly shows how to program in an offset on the Rex C-100: https://youtu.be/9aW8MfiKIPg?t=291. Here are some pictures of the Lego enclosure: https://www.reddit.com/r/espresso/comments/owpfe7/i_made_a_lego_enclosure_for_rex_c100_pid/. Have you written an article regarding installing a Gaggiuino mod? Individually PID control parameters Its one more thing to plug in, but the upside is that it would be electrically isolated from the Gaggia. Never used a K type so I cant say for sure. I hope you enjoy your upgraded GC as much as I do mine! Then the PID will only switch on when the boiler temperature drops below the target temperature. Our provided installation manual is based on the Gaggia Classic 2016 (model# RI9403/11). This resulted in the PID not powering up even though the machine did. New to the forums, but I've been experimenting with espresso at home over the last year when my brother gifted me a used Gaggia Classic with an Auber PID. But that also seems fiddly. Does this happen even if you let the machine sit in steam mode and dont open the steam valve?. Nevertheless, it will take some time to get it and make a change of the temperature sensor. Hello again, I found out that connection I made was wrong. Have you noticed any problem using REX-C100FK02 and RTD PT100? Good idea Chris. Their kit is convenient, and is the way to go if someone doesnt feel ready to take on a 100% DIY project. 103 or 105 is good. Auber Instruments PID Kit for Gaggia Classic See More by Auber Instruments 4.8 6 Reviews CA$285.00 Earn 855 Reward Points worth $8.55! It was impossible to see without getting down into the wire harness. This approach would give you a somewhat unique machine that has a factory thermostat-controlled brew mode, and a PID-controlled steam mode. So I say go for it, but as Chris said, if you really dont feel comfortable with it, pass on the PID or try to find someone who can install it for you. Both shades and auber use the alarm 1 & 2 though with different PIDs for steam with upper limit & lower limit. 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. Neutral is the return path for the hot or load wire. This product was added to our catalog on Tuesday 26 June, 2007. Thanks for the quick reply. It will improve the consistency of the brewing even if you didn't tamp the coffee perfectly. The cup warmer does seem a bit hotter than before (but have only used twice since installing, so Ill have to pay attention). Thats what Auber and Shades use, although they make their own. For more than half a century, Gaggia has been supplying both coffee bars and homes with innovative, state-of-the-art coffee machines. Shop for it now! BREWING UNIT RE-SETTING AND CLEANING. 3: For owners of the Gaggia Classic ProRI9380 240Vversion, please check the installation guide "KIT-GG_Classic Pro US 120V_Installation". The grommet is used where the wires go through the chassis. Hi Nish. Users can see the boiler temperature on the PID controller directly and also easily adjust the brew water temperature to suit their own tastes. Thanks for your time. Its getting very hot indeed so turned it off. This is really a DIY project. Slip some heat shrink tubing over the thermocouple, and ideally dip the thermocouple tip in some thermal grease, then insert the thermocouple into the adapter. Your email address will not be published. I purchased an AC to AC SSR (SSR 40AA) which will stabilise steaming temperatures in much smaller margins than the original steam thermostat. The Classics over-pressure valve (OPV) is set to 14 bars, which is a pressure better suited to the use of pressurized portafilters. (PID Temperature Controller Meter Indicator, Jaybva Digital Universal Thermostat C and Fahrenhe F Display SSR and Alarm Output 40A Solid State Relay and Thermocouple Probe Heat Sink Included)? 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