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− | The Expobar Brewtus IV is a [[:Category:Prosumer|Prosumer]] espresso machine featuring a PID controller and E-61 grouphead. {{Description-Table
| + | {{Getting-Started |
− | |title = Expobar Brewtus IV | + | |machine_type = Prosumers |
− | |machine_image = [[File:EXPOBAR BREWTUS 4.jpg|none]] | + | |product_page_title = Brewtus IV |
− | |manufacturer = Expobar | + | |product_banner = [[File:Wiki_ProductPageBanner_1200x175_ExpobarBrewtus_v2.jpg| link=]] |
− | |model_name = Brewtus IV | + | |product_page_title = Expobar Brewtus IV |
− | |type = [[:Category:Prosumers|Prosumer]] | + | |page_type = set up |
− | }}
| + | |section1 = Install It |
| + | |anchor1 = Install |
| + | |section2 = Get it Good & Hot |
| + | |anchor2 = Heating |
| + | |section3 = Get a Handle on your Tamp |
| + | |anchor3 = Tamping |
| + | |section4 = Brew Better |
| + | |anchor4 = Brew Better |
| + | |section5 = Brew the Best You Can Brew |
| + | |anchor5 = Brew Best |
| + | |section6 = Preinfusion and You |
| + | |anchor6 = Preinfusion |
| + | |section7 = Get Frothing |
| + | |anchor7 = Get Frothing |
| + | |section8 = Froth Better |
| + | |anchor8 = Froth Better |
| + | |section9 = Frothing and Habits to Avoid |
| + | |anchor9 = Frothing Mistakes |
| + | |section10 = Steam & the Heating Sweet Spot |
| + | |anchor10 = Steaming Temperature |
| + | |section11 = Steam with Thermometers |
| + | |anchor11 = Steam with Thermometers |
| + | |section12 = Don't Break It |
| + | |anchor12 = Preventative Maintenance |
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− | == Machine Description ==
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− | The Expobar Brewtus IV is a dual boiler Commercial and prosumer espresso machine equipped with a vibration pump. Two copper boilers let this Expobar dedicate one exclusively to brewing and the other to steaming, frothing and dispensing hot water. New to the fourth generation of the Brewtus line is a dedicated switch that will allow you to turn off the steam boiler and operate with just the brew boiler. Doing so will result in quicker warm-up time as well as yield lower operating costs in the long run.
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− | The Brewtus IV is also outfitted with a Gicar-build PID (Proportional-Integral-Differential) controller that will let you monitor and adjust brew boiler temperature. As with all Expobar machines, the Expobar Brewtus IV comes with a chrome-plated brass E-61 brew group that has been proven to excel at maintaining stable brewing temperature. The machine also features a commercial grade steam boiler and commercial style steam wand assembly.
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− | The Expobar Brewtus IV equipped with two copper boilers—one for steaming and the other for brewing. Each boiler is outfitted its own 1250-watt heating element and can operate autonomously. The boilers are set to the appropriate temperature for their individual functions and their environments will not fluctuate when you alternate between brewing and frothing. This temperature stability will allow you to achieve consistent results as well as permit brewing and steaming functions to be performed simultaneously.
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− | The Expobar Brewtus IV has a body made of heavy-gauge polished stainless steel. It features a passive cup warmer and a large drip tray. The Expobar Brewtus IV has a large 90oz reservoir with an optional water softener. The water tank can be removed for hassle-free refilling and maintenance.
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− | The Expobar Brewtus IV comes in three separate versions: a vibration pump version, a rotary pump version, and a plumbable version.
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− | ==Basic Usage==
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− | {{#ev:youtube|https://www.youtube.com/watch?v=K3IUqHdEkR0|480|center}}
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− | == Cleaning & Maintenance ==
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− | {{Maintenance-Prosumer
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− | |desc_instr_avail = Yes
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− | |dual_descale_instr = The Brewtus IV can be descaled, but extreme caution must be exercised. The descaling process for the unit requires the machine to be at very high temperatures, and if the procedure is not followed properly it can harm you or the machine. The instructions must be followed exactly. [[File:EXPOBAR BREWTUS IV Descaling Instructions.pdf|250px|thumbnail|center|Descaling Instructions]]
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− | |group_gasket_link = The gasket can be purchased [https://www.wholelattelove.com/products/group-gasket-for-office-lever-and-brewtus-8-5mm here].
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− | |descaling_products = The machine can be descaled using [https://www.wholelattelove.com/products/urnex-full-circle-descaling-liquid Urnex Full Circle Cleaning Liquid].
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| }} | | }} |
| + | {{Set-Up-Content |
| + | |dual_boiler = yes |
| + | }} |
| + | ---- |
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− | == Troubleshooting ==
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− | ===No Crema or Bad Tasting Shots===
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− | {{Troubleshooting-No-Crema-Bad-Shots}}
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− | ===Difficulty Frothing===
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− | {{Troubleshooting-Frothing}}
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− | ===Flow Issues===
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− | The first place to start with any flow issue is cleaning the machine. Before going through these steps please make sure the machine is cleaned according to the [[#Cleaning & Maintenance|Cleaning & Maintenance]] section of this article.
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− | {{Troubleshooting-Prosumer-No-Steam
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− | |steam_gauge = Yes
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− | |vacuum_relief_instr = Instructions for cleaning the vacuum relief valve can be found in the video below: {{#ev:youtube|https://www.youtube.com/watch?v=ecR9nDsORd8|480|center}}
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− | |hls_reset_instr = Instructions for resetting the high limit switches can be found in this document:[[File:EXPOBAR BREWTUS IV High Limit Reset.pdf|250px|thumbnail|center|High Limit Switch Reset Instructions]]
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− | |pstat_picture = [[File:EXPOBAR 3-Wire Pressurestat.gif|200px|super|thumbnail|right|3-Wire Pressurestat]]
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− | |pstat_adjust_instr = Instructions for adjusting the pressurestat can be found in the video below: {{#ev:youtube|https://www.youtube.com/watch?v=WVKg4z3yhkI|480|center}}
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− | |pstat_rep_instr = Replacement pressurestats can be purchased [https://www.wholelattelove.com/products/3-wire-pressurestat-d1-15-narrow-band here].
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− | }}
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− | {{Troubleshooting-Prosumer-Brew-Blocked
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− | |grouphead_instr = Instructions for taking the grouphead apart for cleaning can be found below:[[File:EXPOBAR BREWTUS IV Backflush & Group Clean.pdf|250px|thumbnail|center|Backflushing & Grouphead Cleaning Instructions]]
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− | |backflush_instr = Backflushing instructions can be found in the tech document from the previous step.
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− | |valve_instr = The vibration pump version of this machine features a deairator and OPV assembly off the pressure side of the pump. Instructions for taking the OPV assembly apart for cleaning can be found here:[[File:EXPOBAR BREWTUS IV OPV Valve Repair.pdf|250px|thumbnail|center|OPV Clean & Repair]] If the machine continues to have flow issues after cleaning this assembly then it may need to be replaced. Replacement of the entire pump/OPV/deairator assembly is suggested if this is the case.
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− | }}
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− | {{Troubleshooting-Prosumer-No-Hot-Water
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− | |steam_gauge = Yes
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− | |vacuum_relief_instr = Instructions for cleaning the vacuum relief valve can be found in the video below: {{#ev:youtube|https://www.youtube.com/watch?v=ecR9nDsORd8|480|center}}
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− | |hls_reset_instr = Instructions for resetting the high limit switches can be found in this document:[[File:EXPOBAR BREWTUS IV High Limit Reset.pdf|250px|thumbnail|center|High Limit Switch Reset Instructions]]
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− | |pstat_picture = [[File:EXPOBAR 3-Wire Pressurestat.gif|200px|super|thumbnail|right|3-Wire Pressurestat]]
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− | |pstat_adjust_instr = Instructions for adjusting the pressurestat can be found in the video below: {{#ev:youtube|https://www.youtube.com/watch?v=WVKg4z3yhkI|480|center}}
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− | |pstat_rep_instr = Replacement pressurestats can be purchased [https://www.wholelattelove.com/products/3-wire-pressurestat-d1-15-narrow-band here].
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− | }}
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− | ====No Flow At All====
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− | Since there are three versions of the Brewtus IV you will need to follow the appropriate instructions set to resolve a no flow issue for your unit. Please not that if you have a rotary pump in
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− | =====Reservoir Version=====
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− | {{Troubleshooting-Prosumer-No-Flow-At-All
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− | |water_supply = Reservoir
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− | |sensor_instr = The water tank sensor may be wired incorrectly. This video below will explain how to rewire the sensor correctly: {{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=61}}
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− | |pump_instr = This video will explain how to test for electrical pump issues:{{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=961}}
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− | |valve_instr = Check to make sure the fill valve is operational. This video will explain how to see if the fill valve is activating properly:{{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=1088}}
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− | }}
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− | =====Plumb Version=====
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− | {{Troubleshooting-Prosumer-No-Flow-At-All
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− | |water_supply = Plumb
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− | |pump_instr = This video will explain how to test for electrical pump issues:{{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=961}}
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− | |valve_instr = Check to make sure the fill valve is operational. This video will explain how to see if the fill valve is activating properly:{{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=1088}}
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− | }}
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− | =====Switchable Version=====
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− | {{Troubleshooting-Prosumer-No-Flow-At-All
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− | |sensor_instr = The water tank sensor may be wired incorrectly, especially if the machine was modified for plump mode previously. This video below will explain how to rewire the sensor correctly: {{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=61}}
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− | |pump_instr = This video will explain how to test for electrical pump issues:{{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=961}}
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− | |valve_instr = Check to make sure the fill valve is operational. This video will explain how to see if the fill valve is activating properly:{{#ev:youtube|https://www.youtube.com/watch?v=UIiLeRdVWAU|480|center|||start=1088}}
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− | }}
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− | ===Machine Is Leaking===
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− | {{Troubleshooting-Prosumer-Bad-Gasket
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− | |gasket_instr = Instructions for changing the gasket can be found here: [[File:EXPOBAR BREWTUS & LEVER Gasket Changing.pdf|250px|thumbnail|center|Group Gasket Changing Instructions]] A replacement group gasket can be purchased [https://www.wholelattelove.com/products/group-gasket-for-office-lever-and-brewtus-8-5mm here].
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− | }}
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− | {{Troubleshooting-Prosumer-E61-Leak
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− | |lever_style = Lever
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− | |lever_leak_instr = A blowout of the lever assembly can be seen on p.13 of the machine's parts diagram. The o-rings that will need to be checked are listed as part 9 and part 8 on this page.
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− | ###To access these o-rings remove the end cap of the lever assembly using a flathead screwdriver.
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− | ###Once this is removed the other components of the grouphead assembly can begin to be slipped off. The bolts that the lever slides into can be removed with open ended wrenches or an adjustable wrench.
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− | ###Inspect the o-rings and make sure they are not damaged. It's possible that they are just dirty and need to be cleaned off and reseated. If they are damaged, broken, or shows sings of chaffing then they will need to be replaced.
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− | ###Inspect the valve components well to make sure they are intact.
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− | ###Reassemble the components and see if leaking is resolved.
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− | |top_valve_leak_instr = A blowout of the top valve assembly, known as the mushroom or trumpet valve, can be found on p.13 of the machine's parts diagram. There are a few components which can be contributing to the leaking. There are two o-rings, listed as parts 1 and 4 on this page of the diagram. There is also a valve assembly shown as assembly 6 on the same page.
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− | ###To access these parts use an open ended wrench or adjustable wrench to remove the smaller top bolt of the E-61. This will give you access to the first o-ring and spring assembly.
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− | ###To access further down into this part of the grouphead use a wrench to remove the large bolt. This will let you access the other o-ring, another spring assembly, and the other valve assembly.
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− | ###Inspect all of these components for integrity. Clean any dirty parts and replace any broken parts.
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− | ###Reassembly the grouphead and see if the leaking is resolved.
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− | |bottom_valve_leak_instr = A blowout of the bottom valve assembly, known as the release valve, can be found on p.13 of the machine's parts diagram. There are two o-rings in this assembly, listed as parts 4 and 14 on the diagram, and two valve assemblies, listed as assembliess 10 and 12 on the diagram, that can be causing the leak.
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− | ###To access these parts use an open ended wrench or adjustable wrench to remove the smaller bottom bolt. You will be able to access part 14, the o-ring, and assembly 12, one of the valve assemblies. Inspect the parts. If they are dirty clean them off, if they are broken replace them.
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− | ###To access the next o-ring and valve assembly use a wrench to remove the larger of the bolts. Again, inspect the parts for cleanliness and damage. Clean or replace as needed.
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− | ###Reassemble the release valve and test to see if the leaking is resolved.
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− | |E61_group_cleaning_instr = Instructions for cleaning the entire E-61 can be found by clicking [http://coffeetimex.wikidot.com/e61-group-servicing here].
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− | |E61_attach_instr = There are two possible reasons for the machine to be leaking from here.
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− | ##The first is that one of the plumb lines connected to the back of the E-61 is not secure resulting in a leak. This will need to be tightened from the inside of the machine. You may see leaking from the bottom from of the machine as well if this is the case. Remove the top of the machine and look towards the front of the machine. These lines will be located on the back of the faceplate, opposite to where the grouphead is seated. They are listed as parts 19 and 11 on p.9 of the machine's parts diagram. Use an open ended wrench or adjustable wrench to tighten these down. If the leaking persists you may need to apply white teflon plumbers tape or a sealing compound such as food safe permabond.
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− | ##The other possibility is that the E-61 group chassis gasket is not sealing tightly, or is worn out or damaged and will need to be replaced. The chassis gasket is listed as part 20 on p.13 of the parts diagram. There are two bolts which secure the E-61 to the machine chassis, causing it to press on the gasket and create a seal. First try tightening these two bolts down.[[File:EXPOBAR BREWTUS IV Securing Bolts.JPG|480px|thumbnail|center|E-61 Securing Bolts]] If tightening these bolts down not resolve the leak, then the chassis gasket will need to be replaced.
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− | }}
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− | {{Troubleshooting-Prosumer-Bottom-Leak}}
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− | {{Troubleshooting-Prosumer-Top-Steaming}}
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− | {{Troubleshooting-Prosumer-Wand-Leak}}
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− | ===Machine Not Heating Or Powering On===
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− | {{Troubleshooting-Expbar-No-Power}}
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− | {{Troubleshooting-Prosumer-Brew-Cold}}
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− | {{Troubleshooting-Prosumer-Steam-Cold}}
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− | {{Troubleshooting-Prosumer-HLS}}
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− | ===Portafilter Handle Not Fitting On Machine===
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− | {{Troubleshooting-Prosumer-Portafilter}}
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− | ==Diagrams & Manuals==
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− | {{Support-Documents-Prosumer}}
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− | ==Specifications==
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− | {{Specifications-Prosumer}}
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− | <!-- Categories -->
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| [[Category:Expobar]] | | [[Category:Expobar]] |
− | [[Category:Prosumer]] | + | [[Category:Prosumers]] |