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Metos Innovative Dishwashing Systems

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METOS ICS+ RACK CONVEYOR MACHINES<br />

Where do the savings come from?<br />

NOW THREE PROBLEMS AND THREE SOLUTIONS FOR SAVINGS – WITH THE METOS ICS+<br />

Problem 1<br />

A standard rack conveyor dishwasher runs idle, i.e. washes empty<br />

spaces between racks about 50 % of the operation time. Even if<br />

one corner of the rack is in the tank the machine is running and<br />

consequently a great amount of water, electricity and chemicals<br />

are used.<br />

The illustration on the right shows how fresh water<br />

consumption increases when the washing process time<br />

increases, i.e. the slower conveyor speed may even double<br />

the rinsing time compared to the faster programme.<br />

<strong>Metos</strong> ICS+ final rinse fresh water consumption is always<br />

constant, with both the faster and slower programme.<br />

Capacity programme 1/2<br />

Standard dishwasher<br />

200/100 150/75 100/50<br />

Programme 1 rinsing time 18 sec 24 sec 36 sec<br />

Programme 2 rinsing time<br />

<strong>Metos</strong> ICS+<br />

36 sec 48 sec 72 sec<br />

Programme 1 rinsing time 14 sec 14 sec 14 sec<br />

Programme 2 rinsing time 14 sec 14 sec 14 sec<br />

44 |<br />

Switch<br />

Standard dishwasher<br />

faster programme<br />

100 racks/h<br />

Rinse time 36 sec. / rack<br />

Problem 2<br />

Most of the rack conveyor machines have two conveyor speeds.<br />

Programme 1= faster programme (100 racks/h) has a final rinse<br />

time of 36 seconds per rack.<br />

Programme 2= slower programme (50 racks/h) has a final rinse<br />

time of 72 seconds per rack.<br />

With the slower programme fresh water consumption is doubled,<br />

because the rack moves through the rinse zone with a slower speed.<br />

Consequently the costs of fresh water, electricity and chemicals<br />

are doubled.<br />

14<br />

Final rinse water litres / rack<br />

0<br />

Standard dishwasher<br />

slower programme<br />

50 racks/h<br />

Rinse time 72 sec. / rack<br />

Standard<br />

dishwasher<br />

<strong>Metos</strong> ICS+<br />

200 150 100 75 50<br />

Capacity racks/h

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