I'm a plumbing contractor that is in the process of figuring out what kind of water heater I need to supply hot water to a #AM15-1 dishwasher. Will this dishwasher work off of 140 degree water, or does it have to have a booster heater to boost the temperature to 180?
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Re: I will be hooking up this dishwasher.
I'm a hobart tech.If the dishwasher is going to be a cold machine you need 140 degrees,if its a hot machine you need 180 which you need a booster.A hatco c-36 will supply the dishwasher with180-190 degrees.Any ? let me know.
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There are advantages and disadvantages to both pipe sizes. Typically, most houses utilize 3/4 inch or larger to supply high volume circuits like the circuit from the meter (or well) to the hot water heater, outside spigot, or water softener. Distribution from water heaters is usually 3/4 for the main branch but this is reduced for the runs to the sink, dishwasher, washing maching. The reason for reducing the size is to reduce the volume of water in the tube or to reduce the amount of cold water you run down the drain before it turns hot.
Since your house seems to have 1/2 inch supply to the current water heater, I would suggest staying with the current size. The option is to enlarge the tubing from supply to distribution which can be a major plumbing task. If your current water pressure (at the faucet) is ok, then go with what you have.
The unit should be hooked up to the hot side of the supply. A lot of dishwashers have heaters, but using hot water saves them the time to heat the water to the prescribed temperature, around 140 degrees. The following website discusses this: http://www.dslreports.com/forum/r18973777-Which-water-supply-for-dishwasher
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a dishwaher needs hot water to work properly a mixer i believe works so you do not get burned by hot water i believe correct me if i am wrong with a normal tap all you need is a special fitting for your portable and they usually are supplied with a new one or are cheap to purchase from a plumbing supply or loewes or home depot.check with where you want to purchase washer and ask if they work with a tap mixer
Generally speaking, dishwashers don't heat cold water on their own. Be sure the dishwasher is connected to a hot water supply and that hot water is available to the dishwasher at the START of the cycle.
Often it takes hot water several seconds for house plumbing to deliver hot water to an outlet. If the dishwasher is connected to the kitchen hot water supply, run the water in the sink until the water runs hot before you start the dishwasher.
Dishwashers often have heaters to heat the water even hotter than most home water heaters, but they are not intended to heat cool or cold water. You MUST furnish hot water to the dishwasher from the time the cycle is started.
I've seen houses that take so long for hot water to reach a faucet, the dishwasher is already full (of cold water) before the first drop of hot water reaches it.
sounds as if the water supplied to your dishwater is on the cold side supply. Dish washers do not heat water themselves they have the hot water supplied to them from the hot side of the water supply to the house. Very few dishwashers have a water heater hook up built into them.. I would check the water supply to the dishwasher I think there is where your trouble is. Good Luck
Do you have it hooked up to hot or cold water supply? Most residential dishwashers don't come equipped with a booster heater. If it's connected to the cold side, you'll have to replace the angle stop with a single outlet stop and replace the hot angle stop with a double outlet stop. This should help out, if not, make sure you have hot water in the faucet before starting the dishwasher. Most dishwashers need at least 120 degree hot water supply.