240v question

[carambola]

Your panel is already maxed out.
No more room to add another tandem breaker.
Your concern is to add something else.
Like hanging a new suit on a cancerous corpse. Pass on the dishwasher, upgrade the panel.
This deal doesn't fit for you.

[jyl]

Good comments, thanks!

Yeah, I've wanted a commercial DW for many years. I swore to never buy another consumer kitchen appliance when my not-inexpensive appliances all crapped out after ten years and the parts were NLA or ridiculously expensive. I'm angry about planned obsolescence! I've moved to a commercial refrigerator and the closest residential-legal thing I can find to a commercial range. They work well and when something breaks I can easily obtain and swap the parts out.

The workflow for using a commercial DW will be interesting. If we can't deal with it, then I'll just sell the unit and move on. To Zeke's point, our very nicest stemware will always be hand washed - its got fragile gold plating etc. EdRogers, thanks for the tips. Hmm, floor drain . . . I've always wanted one.

[look 171]

Originally Posted by Jim Richards

^^^Emphatically, this! Code is a dedicated circuit for the clothes dry and, if I remember correctly, a dedicated circuit for the dishwasher. I think you need to calculate your service requirements and consider a service panel upgrade.

Hey Jim,

IN the kitchen, code requires a dedicated circuit for each item that has a motor in it and two other dedicated circuits for plugs. A kitchen remodel can cause thousands more in some of the older houses because there just isn't more room for all that circuits.

[Zeke]

No need to go on about this. Do not do what you were thinking. I say that not because I'm a doomsday'er and think you'll burn your house down. Chances are that will never happen but the key word there is chances.

In terms of 240v there is never a situation that I know of where there is more than one appliance per circuit or even more than one plug. I think I've seen where some wire a welding circuit into a garage (with the special welding plug) and locate a couple of outlets in the same work space to avoid long extension cords, but beyond that, no.

[look 171]

I think you need to live in a restaurant, John.

You might get a kick outta this. I remodel this guy's grant old house in Pasadena some time ago. He was a restaurant owner, to my surprise, he wanted the best and the quietest appliances. He brought in his own refrigeration guys for the ref. It was two huge Liebherr. The compressors were in the basement under the kitchen. You can sit there and have a meal and never hear them go on. Pretty cool, I think.

[Por_sha911]

Originally Posted by jyl

I suppose I'd have to not run the dishwasher and clothes washer at the same time.
Does this make sense?

No! I can't imagine being up to code with two units on a circuit that cannot run both at once. God forbid you accidentally run both, the results could be disasterous. Also, as someone else has said, your homeowners insurance will use that as a reason to deny a claim and even if the problem was unrelated it will raise red flags and you will be dropped.

[dad911]

do not put on same circuit.

You need to upgrade panel, or add a sub panel.

Are countertop & cabinets ok?



https://www.burkett.com/used-hobart-lx30h-high-temp-17-opening-undercounter-dishwasher-stock-no-22115

[wdfifteen]

Originally Posted by Por_sha911

No! I can't imagine being up to code with two units on a circuit that cannot run both at once. God forbid you accidentally run both, the results could be disasterous.

Assuming all the connections are tight and don’t overheat what will happen is he’ll blow the breaker. Not a disaster, but not something you want to do.

[jyl]

Cabinets are going to be replaced eventually, so I don't care about them. They are okay quality - actual wood not the weird stuff cheap cabs are made from now - and in decent shape.

Originally Posted by dad911

do not put on same circuit.

You need to upgrade panel, or add a sub panel.

Are countertop & cabinets ok?



https://www.burkett.com/used-hobart-lx30h-high-temp-17-opening-undercounter-dishwasher-stock-no-22115

[Por_sha911]

Originally Posted by wdfifteen

Assuming all the connections are tight and don’t overheat what will happen is he’ll blow the breaker. Not a disaster, but not something you want to do.

What happens if there is a minor flaw or kink in the wiring that is not able to handle the load?

[URY914]

220-221, Whatever it takes.....

[wdfifteen]

Originally Posted by Por_sha911

What happens if there is a minor flaw or kink in the wiring that is not able to handle the load?

OK. “Assuming all the connections are tight and there are no minor flaws or kinks in the wiring”.
Better?

[javadog]

Originally Posted by Por_sha911

What happens if there is a minor flaw or kink in the wiring that is not able to handle the load?

Wire gets hot, fire is possible...

[red-beard]

Originally Posted by jyl

Hmm. Panel is already loaded up with tandem breakers. There is no separate 240v circuit for the oven, it is gas. I calculated my service requirements when i did the garage sub panel, didn't need an upgrade for that reason.

I will think about using the existing 240v circuit for the clothes dryer to run a sub panel, then run separate circuits for the dryer and the dishwasher from that. Come to think of it, I have another potential 240v appliance to add later (commercial two head espresso machine) so a sub panel might be the best approach.

The dishwasher has a booster heater, takes hot water and heats to 180 F for the rinse cycle, hence the power requirements. Hobart Model LX30H https://www.heritageparts.com/medias/HOB1802.pdf?context=bWFzdGVyfHBkZi1tYW51YWxzfDI2OD U1OHxhcHBsaWNhdGlvbi9wZGZ8cGRmLW1hbnVhbHMvaDZlL2g2 Ny84OTY0ODUwODEwOTEwLnBkZnwyMmVmMGI3ZDBlZjRhMGUzZG JjZjE1YjE3ODg1NDQ4NzY2ODI5NTRkYjM4ZGNhZWQ0MjA4MGJj NDhkMDJlZjkx

My Bosch has a supplemental heater to 180F as well and it is 1500 Watts.

[cairns]

A commercial dishwasher for your home? Do you regularly serve dinner for thirty or more??

[jyl]

Originally Posted by cairns

A commercial dishwasher for your home? Do you regularly serve dinner for thirty or more??

Sometimes, twenty.

[greglepore]

The thing about commercial dishwashers (jyl probably knows this) is that they really don't wash, they sanitize. The human dishwasher washes everything before it goes in. 3min hot water cycle. My place had a preheater for dw water in the basement to supply the Hobart.

[1990C4S]

Pull the dryer breaker, put in a larger breaker to feed a sub-panel.

From the sub-panel feed the dryer and the dishwasher.

Ignore the doom and gloom above.

[T77911S]

if you have a 30amp on the dryer you cant just pop in a 50. the wiring needs to be upgraded.
#6 probably.

best advise I saw was double up some circuits.
pull new wire for washer.

I am with you on the new "crap" that is out there.

we had one of the basic washer and dryers for over 20yrs. wife had a kids resale shop and she washed EVERYTHING before it went in the store. so double the amount of use.
I wanted to get her something nicer. bad mistake. every so often our jeans come out with white streaks on them, she has to wash them again.
also takes much longer

same with dishwasher. takes forever.

not impressed.

[dad911]

Originally Posted by 1990C4S

Pull the dryer breaker, put in a larger breaker to feed a sub-panel.

From the sub-panel feed the dryer and the dishwasher.

Ignore the doom and gloom above.

NO NO NO... WIRE SIZE!!!!!!

Also need 4 wire to a sub panel. Separate ground and common!