To any one that has wireD this gear before:
I have 2-10 cu.ft. Cascade ovens and an Edwards 30 pump that I received used. They all without plugs.
My problem is that while all the specs say that they run on 220v, but the wires are all in a configuration that says 110v.
There are 3 wires in these:
Black one
White one
And Green one
I assume that I would use both the Black and the White to carry the two hot legs and use the green as the ground, but since the equipment is expensive, I thought I’d float the question as to not destroy the equipment by wiring it wrong.
Anybody have any experience hardwiring any of this stuff?
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The name plate says they are 220v?
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Yep. On both ovens and the pump
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I’ve just wired my new USALabs chiller (30/40) in. It is also a hot/hot/ground 3 wire configuration, but it a least has a plug so the wiring was straight forward and standard
It’s not like this Equpment is more than a couple years old. The chiller is brand new. No idea why they’re still using 3 wires in this day and age
Yes, the white will be a hot wire also. Your original inclination is correct.
They use the three wire cord because that’s all it needs. The black white green combo is an Electrical industry standard. There are some companies that make a black red green sj/sjo cable, but very few manufacturers either look for it or are willing to pay more for it because it isn’t regularly stocked.
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That makes since. Especially when it’s in a pre made cord. I opened the plug on the chiller and it was black/blue/yellow and I totally had a WTF fit, but it’s from China so I wasn’t surprised. Thanks a lot, feel a lot better now…
Edit: I’ll tape it for the next guy…
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White and black a hot and green is ground.
If they’re 220V on nameplate you can use 208 - 240V power
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Thanks… you guys have made me feel a lot better 
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Two hots and a ground brotha man maje sure to use 240v plug and outlets wired 240v obviously
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All equipment with a metal casing is earthed, so has 3 wires. You normally see 2 wires going into an appliance if its made from an insulating material, stepped down to low voltage, sealed with no possibility of current leak.
( i think lol , just woke up )
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Thanks. I guess I’m just used to my kitchen appliances and som other stuff I ran in the shop. The neutral wire is in there so that the electronics could run on 110. Thought maybe these expensive pieces of equipment might do the same.
I felt the the green wire was sacred (it being the ground) but then I also found a bunch of wiring diagrams with two hots and a neutral. So I was going to ground the chassis of the equipment in that case.
But again thanks, all this makes me feel a lot better