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Coffee Discussion boards => Hardware & Equipment => Topic started by: Ray T on December 12, 2013, 12:41:12 PM

Title: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: Ray T on December 12, 2013, 12:41:12 PM
We need a sticky (hint hint please )so maybe I and others will avoid making mistakes when setting the machine up. it will be a couple months before I can even use it. Right now all I can do is protect it from the weather and read up  ;D
I did plug it in test and inspect everything so it's good to go when I am 

1st question - table size -mainly height, do I want to sit and roast ?? Planning on keeping the top small so getting around it to clean or work on is easy thoughts ? experiences.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: peter on December 12, 2013, 01:44:57 PM
My roaster was part of a package, and the table it sits on is stainless top w/ wire shelf below it.  It has round legs and casters, and the legs were cut down so the finished height is 14", which is perfect for me.  It puts the cooling tray about waist high.  The casters are handy. 

If you're using propane, you'll want enough room on the cart/table for a tank.  Either that or a hose that's long enough from the regulator to the roaster's on/off valve.


Why the long wait until you use it, Ray?
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: Ray T on December 12, 2013, 04:48:37 PM


Why the long wait until you use it, Ray?

No good place to set it up. ONCE  ;DThe garage is FULL and not completly weather proof so I need to empty, sheet-rock insulate ect . I was no way ready for this I still have snow on the ground the garage is still full full full from summer projects and unlike some I still work for a living so it may take time just to find the wall where the propane will be plumbed into  ;D I have waited a long time for this so a little longer wont kill me i hope, so Right and once is very important to me.

Thanks I will look for something stainless around 14"-15" X around 20"x32"or so with wheels for now it needs a good dusting inside and out. No better way to get to know it that tear it apart.

Pictures are always great  ::)
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: peter on December 12, 2013, 07:52:00 PM
My table looks like this, only it has casters.  The casters may not be a big deal if you have a permanent spot for it.  The legs are round, so once they're cut down, you just assemble the table and voila, it's perfect.

(http://www.westernsafety.com/eagleMHC/eaglepg5-Hframetable.jpg)
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: ScareYourPassenger on December 13, 2013, 03:19:04 AM
Tearing it apart won't be fun. Given how clean it looks, run a batch and toss the coffee.

Check the exhaust pipes and fan. If they look clean, you are ready to roast.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: milowebailey on December 13, 2013, 11:01:32 AM
Ray

Hook a tank up and fire it up... the heat will eliminate the dust.  You don't have to roast, you can just pre-heat it and make sure all is working.  I duct mine out of a window in the basement.  You could use a metal dryer vent temporarily  Propane tank sits on the floor of the basement.  I use double wall 4" ducting (you can get sections of it at most any home improvement center.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: BoldJava on December 13, 2013, 12:28:22 PM
Ray

Hook a tank up and fire it up...  Propane tank sits on the floor of the basement...


Please read the safety warnings from the propane association.  Don't use a propane tank inside. http://www.pgane.org/small-cylinder/ (http://www.pgane.org/small-cylinder/)
State of Michigan:  http://www.michigan.gov/dhs/0,4562,7-124-5453_5531-174515--,00.html (http://www.michigan.gov/dhs/0,4562,7-124-5453_5531-174515--,00.html)
Amerigas:  http://www.amerigas.com/pdfs/PSA_PropaneSafety_NJPGA_11_12_12.pdf (http://www.amerigas.com/pdfs/PSA_PropaneSafety_NJPGA_11_12_12.pdf)
National Fire Protectin Assn:  http://www.nfpa.org/safety-information/for-consumers/gasoline-and-propane/propane-safety (http://www.nfpa.org/safety-information/for-consumers/gasoline-and-propane/propane-safety)
ad infinitum...

In addition, my brother, a retired engineer, was lead design and production engineer for one of the largest propane and scuba valve manufacturers in the U.S.  He says, "DON'T DO IT."  Valves fail; propane is heavier than air and will lay on your basement floor.  Invitation to trouble.  Spend the dime, get it plumbed, and put in a natural gas burner.  Life is too precious.


End of sermon.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: Ray T on December 13, 2013, 01:50:08 PM
Ray

Hook a tank up and fire it up... the heat will eliminate the dust.  You don't have to roast, you can just pre-heat it and make sure all is working.  I duct mine out of a window in the basement.  You could use a metal dryer vent temporarily  Propane tank sits on the floor of the basement.  I use double wall 4" ducting (you can get sections of it at most any home improvement center.


I do plan on trying that but it did not come with the regulator for a propane tank, I think I have a old BBQ regulator some where otherwise I will have to buy one plus adapters just to try it. I think digging, running the gas pipe 6" -10' or so will be my first project on my next day off after the stupid snow melts.


Ray

Hook a tank up and fire it up...  Propane tank sits on the floor of the basement...


Please read the safety warnings from the propane association.  Don't use a propane tank inside. [url]http://www.pgane.org/small-cylinder/[/url] ([url]http://www.pgane.org/small-cylinder/[/url])
State of Michigan:  [url]http://www.michigan.gov/dhs/0,4562,7-124-5453_5531-174515--,00.html[/url] ([url]http://www.michigan.gov/dhs/0,4562,7-124-5453_5531-174515--,00.html[/url])
Amerigas:  [url]http://www.amerigas.com/pdfs/PSA_PropaneSafety_NJPGA_11_12_12.pdf[/url] ([url]http://www.amerigas.com/pdfs/PSA_PropaneSafety_NJPGA_11_12_12.pdf[/url])
National Fire Protectin Assn:  [url]http://www.nfpa.org/safety-information/for-consumers/gasoline-and-propane/propane-safety[/url] ([url]http://www.nfpa.org/safety-information/for-consumers/gasoline-and-propane/propane-safety[/url])
ad infinitum...

In addition, my brother, a retired engineer, was lead design and production engineer for one of the largest propane and scuba valve manufacturers in the U.S.  He says, "DON'T DO IT."  Valves fail; propane is heavier than air and will lay on your basement floor.  Invitation to trouble.  Spend the dime, get it plumbed, and put in a natural gas burner.  Life is too precious.


End of sermon.


Thanks Dave concerns noted.  I only have propane available here. For 14 years I was your friendly Sears repairman so replacing.repairing,converting gas valves are a piece of cake. Nothing gets fired up before a soap test.

Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: peter on December 13, 2013, 02:28:58 PM
For the concern Dave mentioned, I was thinking about that on Thurs.  A fellow Ambex user, javagonzo, was here to p/u some greens.  He roasts in his garage because of the propane concerns.  The way I see it, if the valve on the tank is faulty, the ball valve on the roaster would have to fail too, as well as the solenoid valve inside the roaster before there was any propane leakage.  It would be wise however, to do a soap test on the hoses from time to time.  All in all, I don't see the danger of using a propane roaster as any greater danger than a natural gas roaster.  It's the storage of propane tanks indoors, with their potential of faulty valves that I'd see as the greatest risk.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: milowebailey on December 14, 2013, 08:39:17 AM
For the concern Dave mentioned, I was thinking about that on Thurs.  A fellow Ambex user, javagonzo, was here to p/u some greens.  He roasts in his garage because of the propane concerns.  The way I see it, if the valve on the tank is faulty, the ball valve on the roaster would have to fail too, as well as the solenoid valve inside the roaster before there was any propane leakage.  It would be wise however, to do a soap test on the hoses from time to time.  All in all, I don't see the danger of using a propane roaster as any greater danger than a natural gas roaster.  It's the storage of propane tanks indoors, with their potential of faulty valves that I'd see as the greatest risk.


I agree with both Dave and Peter.  Roasting with propane indoors should not be done at home.  We are trained professionals and know the risks. 


BTW.  My basement is a dailight basement and there is a door to the back yard at ground level.  My roaster is next to that door. So if there is a leak the propane can get out.   But don't do it at hame.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: BoldJava on December 14, 2013, 01:52:06 PM
Some more thoughts on the matter from Danetrainer posted over at H-B:  http://www.home-barista.com/home-roasting/tips-for-safe-use-of-lp-gas-roasters-in-residential-setting-t28391.html#p328284 (http://www.home-barista.com/home-roasting/tips-for-safe-use-of-lp-gas-roasters-in-residential-setting-t28391.html#p328284)
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: sonnyhad on December 14, 2013, 06:02:19 PM
Is it a sin to lust after another mans roaster??? It sure is sweet looking!  :)
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: ronburleson on December 15, 2013, 02:58:41 PM
When i got my Ambex I went looking for a table to put it on. I got a stainless steel table at Sam's Club and cut the legs down. It cost me about $120.00. It has worked fine. I left the casters on and it is convenient. I like that I can sit on astool and watch the flame. I adjust as I roast and I like to keep an eye on it.

I use propane but roast in front of my open garage door with it venting outside. Being in So Cal the weather is not a problem. I need to find a chaff collector because if there is a breeze I get chaff all over the garage floor when I am done.

Ron
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: sea330 on December 19, 2013, 10:53:47 AM
I set my propane bottle outside of the shop, run about 6’ of  ¾ copper tubing, leak tested works great, not that big of a job. The Propane delivery guy retested my work just to be safe. Next project is to run a vent pipe up threw the ceiling, been using a dryer vent hose a little pain rolling up after I roast.  Soon I hope to find the time to get a permanent vent system installed thinking a 10 inch doubled wall exhaust pipe just in case I want to bump up to a 5 Kilo roaster some day. Been busy as hell roasting over 100 lbs last week at 2 kilo at a time, need to do another 30 lbs before the week end, will be glad when the holidays are over. Congrats on your looks like new Ambex 2K, will make your Holiday roasting a breeze. I don’t have a Ambex have a Turkish roaster and I love it.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: Ray T on December 28, 2013, 05:06:10 PM
Finished the table ,new regulator installed all systems a go. Tomorrow is the big day in between building a new pump house  ;D



(http://)
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: peter on December 28, 2013, 05:07:43 PM
Glorious flames!  All bow to the glorious flames!
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: ScareYourPassenger on January 01, 2014, 06:04:06 PM
When i got my Ambex I went looking for a table to put it on. I got a stainless steel table at Sam's Club and cut the legs down. It cost me about $120.00. It has worked fine. I left the casters on and it is convenient. I like that I can sit on astool and watch the flame. I adjust as I roast and I like to keep an eye on it.

I use propane but roast in front of my open garage door with it venting outside. Being in So Cal the weather is not a problem. I need to find a chaff collector because if there is a breeze I get chaff all over the garage floor when I am done.

Ron

Thanks for the tip about the table! I picked one up yesterday and set it up today after cutting down the legs. Looks great and the size seems just about perfect for use along with a laptop for roast monitoring or control.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: ScareYourPassenger on January 01, 2014, 06:12:18 PM
For those of you tempted to adjust the Maxitrol valve. Do it! It has made my roast control way easier than resetting the set point over and over. Once 1st crack hits or is about to hit, I turn the gas way down so I get a nice slow and steady rise of temp. I will have to play with the max setting of the honeywell now since I need to find a more linear response between the Maxitrol valve and the Honeywell regulator.

As a side note, I have made some great progress with getting Artisan talking to my Watlow PID that I plan on replacing the old unit in the roaster with. I can not turn on and off the control loops using Artisan but can't set a set point due to limitations in the software. Marko, the main developer of Artisan was nice enough to help out and I should be able to update set points soon.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: milowebailey on January 02, 2014, 10:32:40 AM
I've got to spend the money this year to get the proportioning valve for mine.... I also need a new PID, one button isn't working well anymore.

Ray,

Like the table and set up.... now go roast some coffee.


Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: peter on January 02, 2014, 10:52:25 AM
Might I make a suggestion...  for those who may be making a similar table, consider adding enough length to place the propane tank on the same platform as the roaster.  If you do need to move the roaster, it'll be much more convenient to move the tank w/ it.

Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: milowebailey on January 02, 2014, 10:57:34 AM
Might I make a suggestion...  for those who may be making a similar table, consider adding enough length to place the propane tank on the same platform as the roaster.  If you do need to move the roaster, it'll be much more convenient to move the tank w/ it.

Peter,

Didn't you take note that B|Firemarshall does not approve of using propane indoors.....
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: peter on January 02, 2014, 11:25:53 AM
Might I make a suggestion...  for those who may be making a similar table, consider adding enough length to place the propane tank on the same platform as the roaster.  If you do need to move the roaster, it'll be much more convenient to move the tank w/ it.

Peter,

Didn't you take note that B|Firemarshall does not approve of using propane indoors.....

That's why the table should be big enough for the tank, so that when I roll my table up the basement stairs and roast outside, the tank goes with it.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: sea330 on January 02, 2014, 11:29:28 AM
Larry, were are purchasing the valve, are they 4-20 ma control or just low/high fire, thinking on doing the same on my system.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: sea330 on January 02, 2014, 11:41:15 AM
I don't store LP gas tanks inside, mine is outside, run gas line threw the shop wall, feels safer that way.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: BoldJava on January 02, 2014, 11:44:39 AM
I don't store LP gas tanks inside, mine is outside, run gas line threw the shop wall, feels safer that way.

That is what my brother suggested if guys are going to roast in basement.  Use approved connectors, replacing appropriately, and testing connections with soapy mix every time you roast.  Lines give out and not just when you test them. Up here, with so many sub-freezing days, propane would get too heavy and don't wish to play with hot water tubs, open windows, etc.


B|FM
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: peter on January 02, 2014, 11:49:05 AM
Mine will be converted to natural gas in the next few months.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: Ray T on January 02, 2014, 01:53:16 PM
Well I finally was able to play,I ended up screwing my back up building the pump house,only took 2 days to get where I could even walk. So today I roasted 3 batches. I am in love already. I can't seem to figure out the watlow to hold a temp should be simple but I just don't get it. Roasts ran right into 2nd way fast  ;D



(http://)
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: Ray T on January 02, 2014, 02:03:40 PM
Might I make a suggestion...  for those who may be making a similar table, consider adding enough length to place the propane tank on the same platform as the roaster.  If you do need to move the roaster, it'll be much more convenient to move the tank w/ it.



Great suggestion on that. The small tank setup is temporary I will be plumbing the propane into the garage from the house supply and the roaster won't be moved after it's set up so that's why I went with a smaller table.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: ScareYourPassenger on January 07, 2014, 04:30:59 PM
I will be pulling settings from my Watlow SD soon before swapping it out for a Watlow EZ-Zone RM and I can post them up so you can check yours. I can say that if you want to slow the roast without the variable valve, you will need to change the setpoint more frequently once first crack hits. The rate of rise is lower as the PID gets closer to the setpoint and by letting it get close to a set point and changing it again it never has time to turn on the burners 100% and rocketing it into 2nd. Also, this also means that the frequency of changes determines your rate of rise.
Title: Re: Ambex 2K Roaster / Q&A / Tips and Tricks
Post by: ScareYourPassenger on January 07, 2014, 04:32:52 PM
Does anyone know the thread specifications for the stock thermocouples? It would be nice not to have to yank everything out and run to HD to check before ordering up some new ones.