HomeRoast Digest


Topic: FR8 Question (18 msgs / 1111 lines)
1) From: Sean Cary
Would an FR8 make a good "deployen roaster"?  
Are they fairly sturdy?  I guess the roast chambers break, but if I took
care and packed it well to be mailed, would it make a decent roaster to make
small batches?  Power is my other concern, will this choke on 50 hz instead
of the normal 60 we have here?  I will have to use a step down transformer
that can support the wattage, does anyone have an idea of what wattage it
draws?
I am going back to Iraq in Jul, and most likely will not have time to build
my deployen popper - and I want to roast in Iraq, just cuase I can and more
so because the coffee sucks, really really bad.
Thoughts?
Sean
Sean M. Cary
Major USMC
Tempus Fugit Memento Mori
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AA==

2) From: Jim Carter
I cannot answer any of your questions.
The only thing I can say is Thank You for serving our country in the 
military.
Be safe and God's Speed to you and all the others.
-- Jim Carter
Sean Cary wrote:
<Snip>

3) From: Larry Johnson
50 Hz shouldn't affect it, I don't think. The heating element won't know the
difference for sure, and I think the fan motor runs on DC, rectified from
the AC input by some zener diodes. I think. If that's true, then the FR8
won't know the difference between 50 Hz and 60 Hz.
And, to echo Jim's sentiments, thank you very much for your service.
On 3/5/07, Jim Carter  wrote:
<Snip>
-- 
Larry J
"It is well to remember that the entire universe, with one trifling
exception, is composed of others."
  - John Andrew Holmes

4) From: raymanowen
Maj. Carey, Mine is labeled "1100w, 120v, 60HZ," so it draws 9.2a at 120v.
If your power line is higher or lower voltage, it will draw proportionally
higher or lower current.
It will run fine on 120v, ac or dc, at 50HZ. Power tag notwithstanding, the
nichrome heater draws almost all of the power. It just needs 120v, dc or ac
at any conceivable power line frequency.
The motor actually runs on dc, fed by a bridge rectifier soldered to its
terminals. It will also work fine on dc or ac at any frequency.
You'd hardly be able to detect any difference in its operation. Just make
sure you have 120 volts.
Cheers and Semper Fi -RayO, aka Opa!
Illegitimus non carborundum!
On 3/5/07, Sean Cary  wrote:
<Snip>

5) From: Sean Cary
Thanks, the wattage was the critical number...
 
I smoked an XBox in Qatar in 2004 using the wrong wattage to run it...too
little vice to much, it was 4th down and FSU was about to punt to my Gators
when the XBox literally let out a belch of grey smoke.  The step down had
fused on the low wattage, and zapped the power supply of my system.  Took a
month to get a new one that ran on 220 and 110 - got to play NCAA almost
every evening on a 50" plasma at the CENTCOM forward HQ after I finally got
it back.
 
Thanks for the thanks, this will be my 3rd and possibly 4th year (If I go
past Dec) in a row, in a combat zone.  While it is great for the taxes, it
is taking a wear on the family - and me.  Add to that a move this spring,
and my dad being diagnosed with Cancer and the Cary household is somewhat -
tightly wound.
 
Sean
 
Sean M. Cary
Major USMC
Tempus Fugit Memento Mori  
From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of
raymanowen
Sent: Monday, March 05, 2007 9:09 PM
To: homeroast
Subject: Re: +FR8 Question
Maj. Carey, Mine is labeled "1100w, 120v, 60HZ," so it draws 9.2a at 120v.
If your power line is higher or lower voltage, it will draw proportionally
higher or lower current.
It will run fine on 120v, ac or dc, at 50HZ. Power tag notwithstanding, the
nichrome heater draws almost all of the power. It just needs 120v, dc or ac
at any conceivable power line frequency. 
The motor actually runs on dc, fed by a bridge rectifier soldered to its
terminals. It will also work fine on dc or ac at any frequency.
You'd hardly be able to detect any difference in its operation. Just make
sure you have 120 volts. 
Cheers and Semper Fi -RayO, aka Opa!
Illegitimus non carborundum!
On 3/5/07, Sean Cary  > wrote:
Would an FR8 make a good "deployment roaster"? [YES]
Takes a lickin' and keeps on tickin' !

6) From: Aaron
Sean, it will run ok.
The heating element don't care about the frequency really.
The motor from what I have heard others say on this thing, runs off 
rectified DC, so it should hardly see the difference.
you will need about 1200 watts at most....
the PX and the navy exchange sells power converters that are 
'universal'  it's a transformerish thing with a bunch of plugs that you 
attach on the plug for the receptacle that's in your specific hole of 
the world, then plug your 115VAC item into it and it will power it upto 
i think 1500 watts or so.
I know the store I used to work at .. Batteries Plus carried them for 
around 30 bucks... and they weighed a pound or so, so no huge lunking 
kva monster to drag around.
If you want I can grab one from B+  (know the manager and send them 
business so I can get it at cost pretty much) and mail it to you if it's 
suitable...  dont remember exactly the specs so will have to check on it.
if you have a B+ by you, you can go in there and look, if they don't 
carry it or give you that stupid look, tell them it's in their DBL 
catalog and to order the thing, and that the B+ in florida said they'd 
give you a 20 percent off on it and ask if they can match it heh....
Aaron

7) From: Aaron
another thing now that i seen your next post.
they sell little ups units, that look like a multiple receptacle plug,   
fairly light weight etc etc.
might want to get one of them too, for your x box and other tronics that 
are sensitive..  that way if the converter you are running it on decides 
to go tits up, the ups will shut down the bad power to your expensive 
unit on the back end before it can fry,
they sell these at the PX as well... AAFES and  NEX both have them.  and 
again i can get one for you and mail it if you need.
aaron

8) From: Sean Cary
I have a few lying around from last year - and they have them at the PX in
Fallujah, but you have to snap them up when the come in, as they go fast...
I am w/in reality of using this there, and am going to snap one up. 
Sean M. Cary
Major USMC
Tempus Fugit Memento Mori

9) From: Sean Cary
Lol...  I cooked one of those in Taqquadam last year, wasn't mine, man was
he pissed!  They don't like the step downs and the 50 hz, it let out a blue
smoke, not quite grey and scared the heck out of us! 
Sean M. Cary
Major USMC
Tempus Fugit Memento Mori

10) From: Leo Zick
The heating element doesn't care about frequency, but the fan may run about
17-20% slower, which could be a good thing!  Maybe this is the trick to
getting longer roasts from the FR8.

11) From: derbyrm
See the tip sheethttp://www.sweetmarias.com/freshroast_fan_adjustment.htmlIt made a huge improvement in mine, even though it took two tries and the 
slider ended up in the middle.
Like the man says, getting it back together is the hardest part.  It got 
much easier when I scribed a witness mark across the two pieces.
Roger
derbyrmhttp://home.insightbb.com/~derbyrm

12) From: Larry Johnson
No, actually, it won't. The motor is DC, as someone said in an earlier post.
I dismantled one of mine (the busted one) and checked. The motor has four
diodes soldered to its terminals, making a full-wave bridge rectifier, which
converts AC to DC. Ergo, frequency not an issue.
BTW, anybody noticed how similar a FreshRoast+8 is to a Poppery 2 when you
look at the innards? Coincidence?
On 3/5/07, Leo Zick  wrote:
<Snip>
-- 
Larry J
"It is well to remember that the entire universe, with one trifling
exception, is composed of others."
  - John Andrew Holmes

13) From: Leo Zick
This is a multi-part message in MIME format.
the fan motor is DC? interesting, i didnt notice when i opened it.http://www.sweetmarias.com/freshroast-fan-adjust/IMG_3001.JPG 
wheres the transformer?  
From: Larry Johnson [mailto:lilboybrew] 
Sent: Tuesday, March 06, 2007 9:36 AM
To: homeroast
Subject: Re: +FR8 Question
No, actually, it won't. The motor is DC, as someone said in an earlier post.
I dismantled one of mine (the busted one) and checked. The motor has four
diodes soldered to its terminals, making a full-wave bridge rectifier, which
converts AC to DC. Ergo, frequency not an issue. 
 
BTW, anybody noticed how similar a FreshRoast+8 is to a Poppery 2 when you
look at the innards? Coincidence?
On 3/5/07, Leo Zick  wrote: 
The heating element doesn't care about frequency, but the fan may run about
17-20% slower, which could be a good thing!  Maybe this is the trick to 
getting longer roasts from the FR8.

14) From: derbyrm
This is a multi-part message in MIME format.
Why would you need a transformer?  I remember lots of home appliances =
from the 1920s and 1930s that used "universal" motors which would run on =
either.  They were nominally 110 vac/vdc, but of course the speed varied =
with the voltage like any DC motor.  They used brushes.  
I didn't notice if the motor in the FR8 used brushes or not, but adding =
resistance to the circuit slows it down.
Roger
derbyrm http://home.insightbb.com/~derbyrm

15) From: Leo Zick
This is a multi-part message in MIME format.
so, there is a fan that converts AC to DC without a transformer or other
device, and its speed is uneffected by voltage or phase?
Am i understanding you correctly?  
From: derbyrm [mailto:derbyrm] 
Sent: Tuesday, March 06, 2007 8:42 PM
To: homeroast
Subject: Re: +FR8 Question
Why would you need a transformer?  I remember lots of home appliances from
the 1920s and 1930s that used "universal" motors which would run on either.
They were nominally 110 vac/vdc, but of course the speed varied with the
voltage like any DC motor.  They used brushes.  
 
I didn't notice if the motor in the FR8 used brushes or not, but adding
resistance to the circuit slows it down.
 
Roger
derbyrm http://home.insightbb.com/~derbyrm

16) From: derbyrm
This is a multi-part message in MIME format.
Its speed is definitely affected by the voltage.  That's how I got the =
roast hotter, by slowing the fan with more resistance.  The conversion =
from AC to (pulsating) DC is accomplished by the bridge rectifier.
Since it's single phase, I don't understand the second part of the =
question.  If you meant to say frequency, then I'd guess there's a lower =
limit at which you'd hear buzzing, but I'm sure 50 Hz is well above that =
limit.
Roger
derbyrm http://home.insightbb.com/~derbyrm

17) From: stereoplegic
i've snuck a "thank you" to Dennis before into a post defending free 
enterprise, now i'll say the same to you and any other serving members 
of this list of whom i'm not aware. thank you, and please get back here 
to show off your homeroasting chops in the greatest country on earth. 
sorry i can't answer your questions either. i won't apologize for not 
posting "OT" as i wanted to be sure you read this.
jcarter wrote:
<Snip>

18) From: Leo Zick
This is a multi-part message in MIME format.
my first post was regarding speed being affected.  im glad we agree!  
From: derbyrm [mailto:derbyrm] 
Sent: Tuesday, March 06, 2007 9:45 PM
To: homeroast
Subject: Re: +FR8 Question
Its speed is definitely affected by the voltage.  That's how I got the roast
hotter, by slowing the fan with more resistance.  The conversion from AC to
(pulsating) DC is accomplished by the bridge rectifier.
 
Since it's single phase, I don't understand the second part of the question.
If you meant to say frequency, then I'd guess there's a lower limit at which
you'd hear buzzing, but I'm sure 50 Hz is well above that limit.
 
Roger
derbyrm http://home.insightbb.com/~derbyrm


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