|
Thread Number: 50687
V Zug Dishwasher with Heat Pump |
[Down to Last] |  |
Post# 729085 1/20/2014 at 15:06 (3,749 days old) by logixx  (Germany) |
||
 Not on any home page but a member from the German forum found the manual.
Nice to see that most cycles are still under two hours, it has a cutlery drawer and water storage tank - just the final rinse temp of 55C is a little low for my taste. Here's the English manual: CLICK HERE TO GO TO logixx's LINK | ||
|
| Post# 729583 , Reply# 1 1/22/2014 at 09:58 (3,747 days old) by T5-RSergeant () | ||
|
A DW with a heat pump, I don't understand.. | ||
| Post# 732756 , Reply# 2 2/3/2014 at 21:57 (3,734 days old) by mielerod69 (Australia) | ||
Video of new V-Zug dishwasher
here is a video showing the new heatpump dishwasher in action.
CLICK HERE TO GO TO mielerod69's LINK | ||
|
Post# 732818 , Reply# 3 2/4/2014 at 12:54 (3,734 days old) by cuffs054 (MONTICELLO, GA) |
||
|
Looked at vid and read manual. I still don't understand how/why the heat pump system works. | ||
|
Post# 732822 , Reply# 4 2/4/2014 at 13:30 (3,734 days old) by henene4 (Heidenheim a.d. Brenz (Germany)) |
||
|
The heatpump is used to heat the water by pulling energy out of the surrounding into the water heaiting it up, just as it works on their heatpump washer and on a heatpump dryer. More efficient as conventional heaters, but still pretty expensive! | ||
|
Post# 732824 , Reply# 5 2/4/2014 at 13:38 (3,734 days old) by logixx (Germany) |
||
|
These V-Zug dishwashers are nice... and fast! Unfortunately, they're also very expensive.
Here's the patent: www.google.com/patents/EP2446795A... | ||
|
Post# 732866 , Reply# 7 2/4/2014 at 17:39 (3,734 days old) by cuffs054 (MONTICELLO, GA) |
||
|
I've got to be missing something here. Been around heat pumps for 40 years. I can't imagine how the system could pull enough latent heat out of the air to warm the water more than a few degrees. How does it dispose of the cold it produces? | ||
|
Post# 733155 , Reply# 8 2/5/2014 at 18:35 (3,733 days old) by logixx (Germany) |
||
|
The patent explains is rather clearly. The dishwasher uses the heat pump to generate heat, it doesn't take it from the ambient air. While one part of the heat pump generates heat, the other side generates cold. There is a pipe in the base of the dishwasher that stores water. This water is cooled while the heat pump runs. During each drain cycle, this pipe is flushed with the waste water from the current step in the cycle. The heat pump then extracts heat from this water and transfers it to the tub. This process is repeated until the cycle is done. The final rinse water, if clean enough, is stored in a separate tank to be used for the next prewash.
During the drying cycle, the heat pump comes on to heat the base of the tub - similar to heated dry on US dishwashers. While the base of the dishwasher is heated, another part of the heat pump cools the tub wall for the condensation drying cycle. Sounds rather complex. Bosch has been using a similar principle for the last 15 years or so but with a water tank attached to the tub. | ||
|
Post# 733180 , Reply# 9 2/5/2014 at 19:44 (3,733 days old) by cuffs054 (MONTICELLO, GA) |
||
|
logixx, thanks for the info. While I understand the concept now, the complexity worries me! I guess I'll stick with my clunky US DW. | ||
|
Post# 733313 , Reply# 11 2/6/2014 at 08:06 (3,732 days old) by logixx (Germany) |
||
|
| ||
| Forum Index: |
| Other Forums: |
|
|
|
|
|
Comes to the Rescue!
