KitchenAid KD-4P toploader in NNJ

[toploader55]

Holy Crap !!!

What a Scan .  Thanks.  The Exact same machine I just realized I don't need.  (But Man,,, I still want it.)

 

[dishwasherfan]

I'm in love...

 

[launderess]

All Those Changes of Water And A Built In Heater

So why the demand per the user's manual for incoming hot water to be 140F to 160F? What was the target temperature for the washes? 180F?

Looks like a fun machine but would miss being able to use the "top" of a portable d/w as a counter for say a toaster oven or something you don't want to keep having to shift in order to load/unload the unit.

Still quite an interesting machine.

 

[tomturbomatic]

No, the timer had no thermal hold, but in portables, the heating element for the dry cycle was exposed after the KD2P so why not put it to some use heating water. The heater did little more than prevent the wash water from cooling down too much during the wash cycle. Very hot water used to be mandated by all dishwasher manufacturers and instructions were to run water to the sink until it reached that temperature. The other night I measured the hot water going into the KDS18 at just under 150F (the water heater was obviously firing) and measured the drain water's temperature at just under 150F and that was with insulation we had applied to the tank and the 700 watt heater operating during the 7 or 8 minute main wash so it probably cannot be said to make the water that much hotter; it just maintains the temperature. Don't forget that unlike the KD2P, which had a double wall tank, these were single wall tanks with lots of heat loss.

 

[launderess]

OIC

Thank you.

One supposes with a good TOL enzyme detergent results would be fine with 120F or 130F water. That or increase detergent to deal with very greasy/oily dish loads.

Interesting machine but still prefer my dishwashers to have a "macerator" and no filters to clean. Oh and then there is the fact that a very hot wash reduces the need for heated drying. Well long as one uses a good rinse aid that is.

During the cooler months of the year when the boilers are also producing steam for heating, hot water out of the taps can reach 140F or so, but once warm weather comes and the heating system is switched off things go back to 120F. This is fine for our Kenmore (built by Frigidare) 18" portable as it has decent heater and the cycle is dealyed long enough to heat "cold" water of that temp to over 140F.

 

[tomturbomatic]

And, if one wash is not long enough to heat the water, you can always turn the dial back to repeat the wash to get hotter water. Unfortunately, the older dishwashers, with the exception of the Westinghouse Roll Outs, did not have long enough wash periods for enzyme detergents to do their work. The Westinghouse Roll Outs had a thermal hold to 140F and would wash for 45 to 50 minutes to heat the load to 140F. They had no prerinse, just a warm-up spray before the wash so wash times were generally long.