How does 120v 4.5a = 3500w?

[LarryFine]

I am working in a small commercial kitchen, and came across these specs:

Adcraft DF-6L/2 counter-top electric double deep fryer, 120 V/60 Hz/1 ph, 4.5 A, 3500 W, NEMA 5-15 plug

And repeated: 120v/60/1-ph, 4.5 amps, 1750 watts (per tank), NEMA 5-15P

I've seen the power cord. It is a 120v 15a plug, and the cord is not very heavy.

I don't get it. :? The current should be 29.167a.

https://d3ld6frh4bdurh.cloudfront.net/pdf/122-DF6L2.pdf

 

[drcampbell]

Most likely a typo. 14.5 amps per tank is quite plausible.

 

[LarryFine]

Most likely a typo. 14.5 amps per tank is quite plausible.

1. These numbers are in multiple places, so not a typo.

2. The 4.5a number is the total for both tanks, not each.

3. The plug and cord supplies the entire double fryer.

4. The cord is relatively light with a standard 15a plug.

https://www.katom.com/122-DF6L2.html

I just watched the video on that page, which says the double unit has two power cords, but I didn't see that on the actual fryer.

I need to call the customer and ask her to check.

 

[LarryFine]

Customer just confirmed that her double fryer has a single power cord.

I don't get it. 2 x 1750w = almost 30a. @ 120v.

 

[winnie]

They are heat pump fryers. 1750W is the thermal output.

Or maybe this is like the 'peak hp' ratings on vacuum cleaners.

Or for a real stretch: 4.5A at 115V is 518W, which is 1765 BTU per hour

-Jon

 

[topgone]

Customer just confirmed that her double fryer has a single power cord.

I don't get it. 2 x 1750w = almost 30a. @ 120v.

A puzzling problem indeed.
Maybe it's not 3500W but 350W each! Since it's a two-piece fryer, the demand factor is 75%(table 220.55). 350 x 2/120 x 0.75 = 4.375A!

 

[K8MHZ]

Hook a Kil-a-watt up to it. Better to test than to guess.

 

[LarryFine]

I already planned to use my clamp-on ammeter, but thanx.

 

[mivey]

They are heat pump fryers. 1750W is the thermal output.

Or maybe this is like the 'peak hp' ratings on vacuum cleaners.

Or for a real stretch: 4.5A at 115V is 518W, which is 1765 BTU per hour

-Jon

I vote for the BTU angle and a 2x multipler and a 95% power factor.

(120×4.5×3.4121416×2)×0.95 = 3501

 

[LarryFine]

"I don't think so, Tim!"

 

[mbrooke]

Is there any possibility these are gas or LP?

 

[LarryFine]

Is there any possibility these are gas or LP?

See again:

https://www.katom.com/122-DF6L2.html

https://d3ld6frh4bdurh.cloudfront.net/pdf/122-DF6L2.pdf

 

[mbrooke]

See again:

https://www.katom.com/122-DF6L2.html

https://d3ld6frh4bdurh.cloudfront.net/pdf/122-DF6L2.pdf

Then its a mistake.

 

[hbiss]

ALL double 120v fryers have a separate cord for each tank. They are just two single fryers stuck together. Look at your Katom product details again! Obviously the 3500w is the total for both. Read the .pdf that you posted- it's right there- or check out another supplier who makes it clear- https://www.jesrestaurantequipment....ry-pot-electric-13lb-fat-capaci-p-700818.html

-Hal

 

[mivey]

You just haven't looked enough.

Adcraft: "The more you look, the better we look"

 

[LarryFine]

ALL double 120v fryers have a separate cord for each tank. They are just two single fryers stuck together. Look at your Katom product details again! Obviously the 3500w is the total for both. Read the .pdf that you posted- it's right there- or check out another supplier who makes it clear- https://www.jesrestaurantequipment....ry-pot-electric-13lb-fat-capaci-p-700818.html

I looked at the unit itself Monday, and the customer confirmed it last might. This is a double unit, and it has only one power cord.

Even then, the math doesn't work out. 1750w @ 4.5a @ 120v.

 

[mivey]

I looked at the unit itself Monday, and the customer confirmed it last might. This is a double unit, and it has only one power cord.

Even then, the math doesn't work out. 1750w @ 4.5a @ 120v.

It does get closer if you make it BTU. Maybe a translation error at the maufacturer to show up in so many places? Somebody at the home base thinking BTU an W were the same thing?

 

[ggunn]

1. These numbers are in multiple places, so not a typo.

Maybe the first occurrence is a typo and the rest are cut and paste of that typo.

 

[jumper]

Maybe the first occurrence is a typo and the rest are cut and paste of that typo.

Good thinking.

Auto fill function could be another culprit.

 

[hbiss]

1750W=14.58A @ 120V. Easy to see how a typo made that 4.5.

I looked at the unit itself Monday, and the customer confirmed it last might. This is a double unit, and it has only one power cord.

Then one got cut off. Even the 208/240V version has two power cords. Look again! Was this a display model? They usually cut power cords off of those.

Easy way to settle this is to plug the cord into a 20A receptacle, put oil in both sides and turn both sides on. Then come back and tell us which indicator lit.

-Hal