Kevin or who knows for sure??? help..

Dan Gray

Dan Gray

Joined
Jun 25, 2001
Messages
8,474
OK guys finally after two plus years I need some help :rolleyes: :) :D


I picked up a Pilot less gas valve kit :D $32.00 :D
it's a conversion kit for a LP or Nat Gas heating unit and I have the orfice to convert it to LP gas..and will be using LP..
I have the valve, the ele control for the Valve , and the igniter / sensor,
I need now
a thermocouple, the thermostat control,
and a transformer 24V.< no prob on this one..

the question??
this unit is set up for max 1/2 PSI with 1/2" in and 3/4" out, good volume I'd say and hopefully will over come the lack of pressure max settings,, factory set for
11.0 W.C and I can set up to 12 W.C.
which I believe will make in one place it says
200,000 BTU's and in another it says 320,000 btu's
will this be hot enough for the forge and the salt pots??
I'm thinking yes because of the volume ??

now I have more paper work than need be with this thing and with cross numbering it's a little confusing..
on the Valve unit it says

Robertshaw-grayson
7200iper-s7c
7e2-e7b-029 Max 1/2 PSI
Reg. Nat 3.5" W.C.
24 VAC
0.4 Total Amp.
720-07K

first will this work for what I want to do with it?
and next what do I use for a thermocouple and the thermostat control with this unit..
 
well.....I can recommend what size hammer to hit it with when it doesn't work.....let me know when ya get to that point :footinmou :D
 
Eeek! Why couldn't the question have been about martensite habit planes, or a good latakia tobacco? I know just enough about LP gas to kill myself and anybody in a 75 yard radius :confused:
 
Kevin R. Cashen said:
Eeek! Why couldn't the question have been about martensite habit planes, or a good latakia tobacco? I know just enough about LP gas to kill myself and anybody in a 75 yard radius :confused:
Click to expand...
.
Thanks Kevin
I have a death wish :D

just a number for the therm controller with volt/amp rating
and the number for a Thermocouple for the ladder would be way cool
paleeease :) and maybe where you got yours :D
If I kill myself I promise not to blame you ..Ever.. :)
 
WOW
My poor little brain couldn't absorb all that stuff.
I am going to use a type k themometer to check temp and a needle valve to adjust the burner.
No blower
I saw a neat little salt set up in Spokane similar to this and it worked great.
My$.02
TJ
I like to keep it simple.
 
TJ Smith said:
WOW
My poor little brain couldn't absorb all that stuff.
I am going to use a type k themometer to check temp and a needle valve to adjust the burner.
No blower
I saw a neat little salt set up in Spokane similar to this and it worked great.
My$.02
TJ
I like to keep it simple.
Click to expand...

TJ what I'm going to like about this (I hope) is it is a Pilot-less gas valve
no need to light it up.... electronic ign :) some of the forges/pots stay over temp with the burner still on
and if set too low for maintaining the heat it goes out then pooph sometimes. :eek:
unless they have a 2nd smaller burner set up, not in all cases ,,,
no blower would be the venturi set up.. :)

Kevin do you think or know if 320K BTU's is enouph heat? I can't see that it wouln't be :confused: :)
 
I really do take an entirely different approach to things like gas apparatus than I do from my steel treating. Put gas in pipe, burn it in chamber, ugg make hot? Ugg yes. Fire good!

I would have no idea what BTU input, output on my forge or salt baths are. Here is my setup right now:

Cn7600 Controller from Omega Engineering for the brains.
It gathers information from a type K thermocouple and relays electric current to a mercury displacement relay accordingly.

The mercury displacement relay regulates electricity to an Asco Red Hat solenoid type combustion valve. It has 3/8” pipe fittings, operates with a maximum of 15 PSI and as my best guess goes from looking at the literature it is rated for 64,400 gas capacity BTU/hr.

The gas goes from this valve to a forced air burner nozzle of my own design and enters the chamber of my high temperature salt pot. The whole setup normally works off ½ to 1lb. of LP line pressure.

As soon as I get some money to do it, I intend on trying to replace the forced air with one of the T-Rex burners offered at http://www.hybridburners.com/. This is the only venturi styles that has impressed me enough to attempt to replace forced air on my burn chamber.
 
Kevin R. Cashen said:
I really do take an entirely different approach to things like gas apparatus than I do from my steel treating. Put gas in pipe, burn it in chamber, ugg make hot? Ugg yes. Fire good!

I would have no idea what BTU input, output on my forge or salt baths are. Here is my setup right now:

Cn7600 Controller from Omega Engineering for the brains.
It gathers information from a type K thermocouple and relays electric current to a mercury displacement relay accordingly.

The mercury displacement relay regulates electricity to an Asco Red Hat solenoid type combustion valve. It has 3/8” pipe fittings, operates with a maximum of 15 PSI and as my best guess goes from looking at the literature it is rated for 64,400 gas capacity BTU/hr.

The gas goes from this valve to a forced air burner nozzle of my own design and enters the chamber of my high temperature salt pot. The whole setup normally works off ½ to 1lb. of LP line pressure.

As soon as I get some money to do it, I intend on trying to replace the forced air with one of the T-Rex burners offered at http://www.hybridburners.com/. This is the only venturi styles that has impressed me enough to attempt to replace forced air on my burn chamber.
Click to expand...

you the Man Kevin :D I got out of this what I need ty
 
Kevin
these are what is on the site
seperat parts I don't see the controler itself?
does one of these parts contain the controler? Thanks..

CN76000-9104
EXTERNAL SNUBBER FOR CN76000 $30.00
CN76000-BEZEL
BEZEL ASSEMBLY FOR CN76000 $17.00
CN76000-BRACKET
PANEL MOUNT BRACKET $3.00
CN76000-HOUSING
HOUSING W/REAR COVER $82.00
CN76000-JUMPER
LOGIC JUMPER-CN76000 SERIES $9.00
CN76000-REARTERMINAL
COVER REAR TERMINAL 4 HOUSING $10.00
 
Dan,
I don't find the CN76000 any more in sales area.
The CN77000 is probably what replaced it. Looks good to me.
Here's the Omega PID Controller page.
Look at the second and third on this page. The second one looks like the best deal, as it has all the mounting hardware.

Hope that helps.
 
Kevin R. Cashen said:
Oh yes!, I forgot about that, you see how out of the loop I am? They did replace the 7600 series.
Click to expand...


well yes and no,,
it is still available but not listed on the web anylonger
I called them this morning,
only the newer models are listed on the web.. now :)
cool site to build your own spec's :) Thanks
 
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