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Metos Marine Galley and Laundry Equipment

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192 |<br />

METOS ICS+ RACK CONVEYOR MACHINES<br />

Problem 1<br />

Where do the savings come from?<br />

Now three problems <strong>and</strong> three solutions for savings – with the <strong>Metos</strong> ICS+<br />

Switch<br />

A st<strong>and</strong>ard 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 <strong>and</strong><br />

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

are used.<br />

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

increases when the washing process time increases,<br />

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

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

ICS+ fi nal rinse fresh water consumption is always constant,<br />

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

Capacity programme 1/2<br />

St<strong>and</strong>ard 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 />

Problem 2<br />

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

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

of 36 seconds per rack.<br />

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

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 <strong>and</strong> chemicals<br />

are doubled.<br />

14<br />

Final rinse water litres / rack<br />

0<br />

St<strong>and</strong>ard dishwasher<br />

faster programme<br />

100 racks/h<br />

Rinse time 36 sec. / rack<br />

St<strong>and</strong>ard dishwasher<br />

slower programme<br />

50 racks/h<br />

Rinse time 72 sec. / rack<br />

St<strong>and</strong>ard<br />

dishwasher<br />

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

200 150 100<br />

Capacity racks/h<br />

75 50

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