ROBERTSHAW 700 GAS CONTROL VALVE 24V MODEL GRAINGER P/N 4E123 - Heating, Ventilation, and Air Conditioning (HVAC) - Do-It-Yourself Appliance Repair Help - ApplianceGuru.com: The Samurai Appliance Repair Forums

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ROBERTSHAW 700 GAS CONTROL VALVE 24V MODEL GRAINGER P/N 4E123

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Posted: Thu Nov 11th, 2010 08:00 pm

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1^st Post

cvx

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Hi guys- I Recently joined as a lifetime member because I love this site! Now my furnace has crapped and I NEED THIS SITE! Funny how life works. I am a journeyman electrician by trade and work in an oil refinery doing process control / electrical / instrumentation. I also ran the HVACR crew and contractors there for 6 years, but it was primarily package (rooftops) and chillers and Liebert IT - computer room units, not furnaces.

I have an old, old Delco furnace that has a Rebertshaw "700" series gas regulator in it (24 volt) that appears to have gone bad. I went to Grainger and got another, their P/N 4E123. Once home and comparing them, I realized that each unit had a black plastic screw / spade terminal section on top BUT the old unit actually did had three combo spade screw metal terminals on top while the new unit has only two and leaves the middle terminal empty.

If I hold the old unit in my hand looking at the terminals I'll just randomly call them #1, 2 and 3 from left to right.

Comparing the old and new units using the ohm meter, both coils are at 68-70 ohms across the #1 and 3 terminals. The #2 terminal on the old unit is dead to either #1 or #3 and stands off ground too. It would appear that the #2 terminal provided in the old units was just a convenient landing point for the t-stat wire as you series'd the loop from transformer to t-stat to regulator to bimetalic and finally back to the other side of the transformer. Was the #2 terminal eliminated for cost savings or possibly changes to the code?

I am always respectful of areas new or limited in familiarity to me and this is one, so I'd really appreciate any thoughts or feedback.

Thanks to all!
cvx

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Posted: Thu Nov 11th, 2010 08:44 pm

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RegUS_PatOff
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ROBERTSHAW 700-xxx

? ? ?

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Posted: Thu Nov 11th, 2010 11:39 pm

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cvx

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Yep! Says so right in the big ol' Robertshaw pamphlet.

Furnace is crap, but it's working now.

Hey, here's a suggestion - next time you see something you don't immediately recognize, if you do want to help, try GOOGLING it! Guess what you get if you Google "Robertshaw 700 series" ?

A picture of my gas regulator!!

That way you can see the part in question. Maybe you call it by a different name? Who knows? I'd be willing to bet that you have lots of info you could share with others here if you knew what the part or item in question was, so if a name confuses you , just Google it!

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Posted: Fri Nov 12th, 2010 12:17 am

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4^th Post

RegUS_PatOff
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there should be (3) numbers after the 700-

700-xxx

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Posted: Fri Nov 12th, 2010 03:34 am

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5^th Post

cvx

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Thanks!

Yeah, if you google " GRAINGER 4E123" that pulls up the Grainger page - ON GOOGLE!!

You can see right there it's a 700-400 series.

So no big deal 'cause I can navigate and fix stuff (woulda liked some real help) but again, for those seriously challenged folks that come to you, they're most likely unable to drill down for those extra 3 digits after the 700- .

Now we can give real help to those that can't understand their situation and come to us for help! I love to go the extra mile to do the best I can!

Thanks again!

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Posted: Fri Nov 12th, 2010 04:01 am

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6^th Post

RegUS_PatOff
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cvx wrote: Yeah, if you google " GRAINGER 4E123" that pulls up the Grainger page - ON GOOGLE!!

You can see right there it's a 700-400 series.

I already saw that the Grainger 4E123 is a 700-400,

BUT is YOUR ORIGINAL a 700-400 ?

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Posted: Fri Nov 12th, 2010 04:32 am

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7^th Post

cvx

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Dude, it was done fixed hours ago.

For a guy with 16,000+ posts, your game is weak. Don't help unless it's max effort every time!

Thank God I did 12 years in submarines as a Nuc electrician! 5000 miles form home and 1000 feet down, you'd better be doin' more than droppin the ball on the last 3 part numbers of a nationally known manufacturer! Boy, you wouldn't have lasted long with us!

Every time someone comes to this site, their contact with you is often their first contact with the site.

>>>>>> YOU represent the Forums ! ! ! <<<<<<

16,000 posts.......... hmmmmm

'nuf said

.

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Posted: Fri Nov 12th, 2010 05:01 am

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8^th Post

RegUS_PatOff
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RegUS_PatOff wrote: ROBERTSHAW 700-xxx

? ? ?

I wouldn't have so many posts and have to keep asking questions

if the original poster ANSWERED my FIRST QUESTION

THE COMPLETE PART NUMBER Robershaw 700-xxx ?

Robershaw makes a number of DIFFERENT 700-xxx

INCLUDUING a DUAL COIL Gas Valve 700-402 4E124

cvx wrote: .. 12 years in submarines as a Nuc electrician! 5000 miles form home and 1000 feet down, you'd better be doin' more than droppin the ball on the last 3 part numbers of a nationally known manufacturer!
you'd better be havin' the COMPLETE PART NUMBER for those submarine parts

GIGO: garbage in / garbage out

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Posted: Fri Nov 12th, 2010 11:49 pm

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JJDH

Joined:	Fri Aug 27th, 2010
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Read the site rules. They simply state a complete part number. You should stick with google. Representing yourself in that manner will get you NO help!

Last edited on Fri Nov 12th, 2010 11:49 pm by JJDH

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