Zanussi N 900 User manual

washing
systems
washing
systems

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the

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Modern catering has really evolved also thanks to the ZANUSSI Professional system.
Every expert in the field acknowledges it as the real driving force behind an evolution
which has improved life in the kitchen and broadened the possibilities for the professionals
working in it. The ZANUSSI Professional system is used throughout the world by millions.
In addition, there are several other subsystems, each focusing on a specific area. The
Washing systems offer a wide range of solutions, using the most up to date technology
and following the highest production standards, designed to guarantee the maximum
levels of hygiene and cleanliness in accordance with the strictest international health and
safety guidelines.
Systemthe

Modular
rack type dishwasher
4
the
washing range
Compact
rack type dishwasher

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washing range
Compact
rack type dishwasher
Pot & Pan
Washer
WT90
rack type dishwasher
High quality performance and reliability, this is what the ZANUSSI Professional dishwashing
systems offer, proof of a level of quality which has become a benchmark in the world of
catering. Rack type dishwashers are integrated by a complete and well-organised series of
accessories. All the machines meet current safety, ecological and ergonomic standards
and are made of the strongest, most resistant materials. All components are designed
to guarantee the highest standards of hygiene as well as a long, trouble-free and silent
working life, even with high work loads. Just a few simple operations are required to use
the machine and the electronic models are equipped with an autodiagnosis system that
constantly controls the appliance, a valid aid for anyone already working under pressure.

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The Zanussi Modular rack type dishwashing range combines
superior strength, top washing performances, easier cleaning
and substantial costs savings thanks to the reduction in
water, detergent and energy consumption. It is
ideal for heavy usage installations such as hotels,
restaurants, canteens, hospitals and nursing homes.
The range is entirely built on a stainless steel subframe.
The machine incorporates a top of the range stainless steel
wash pump for added assurance. All doors are rigidly foam
insulated to provide additional solidity as well as to reduce
noise dispersion.
Maximum hygiene and no odours are guaranteed by the
self-draining wash pump while the pressed tanks in the pre-
wash, wash and rinse zones are sloped toward the drain to
prevent dirt built up.
The Ideal Washing System (IWS) is designed to wash
every item perfectly thanks to separate modules of pre-
wash, wash and rinse. This allows to maintain the best
working conditions in each phase. The Autostart function
(equipped in pre-wash and rinse tank) ensures no water and
energy consumption during stand-by periods.
Modular rack
type dishwasher
The range of MODULAR RACK TYPE
DISHWASHERS includes:
Modular Level A models with electronic controls,
ACTIVE, Energy Saving Device, two speeds and
stainless steel wash pump, electric, with right or
left loading.
Modular Level B models with electronic controls,
ACTIVE, two speeds and stainless steel wash
pump, electric, with right or left loading.

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Cost savings
The overall running costs are reduced by the unique wash
and rinse system which minimises water, energy and
detergent consumption.
When the water becomes too dirty to wash, the IWS, Ideal
Washing system avoids draining completely all the wash
tanks. A part of the dirty water is drained away automatically
each hour and topped up with clean water on a predefined
basis so the appliance can work all day long.
Water saving is up to 30%, while the detergent
consumption is reduced up to 75%. Indeed, the separate
pre-wash zones does not use heated water and so requires
no additional water for cooling.
Savings up to 12kW are guaranteed by the Energy saving
Device which incoporates a large condenser unit that is able
to pre-heat incoming cold water up to 50°C and to avoid the
need for a dedicated ventilation hood.
Self-draining stainless steel
washing pumps, suitable for
heavy duty installations, allow
complete discharge of the
dirty wash water.
The Maximum Water
Contact (MWC) wash
arms are positioned
along the full length of
the wash tank to wash
in the shortest possible
space. Thus doubling
the amount of wash
water contact time
in comparison to the
traditional wash arm
configurations. Just
because a basket is in
the wash zone for 2
minutes, it doesn’t mean
it is being washed in
water for 2 minutes.
The duo wash pump supplies the upper and lower
wash arms, concentrating as much high powered
wash water as possible, ideal for dried on foods or
for a large number of containers or utensils to be
washed.
Working Performance
Zanussi system
Up to 30% savings in water
Up to 75% savings in detergent
Zanussi system Traditonal system
Traditonal system

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Washing performance
TRADITIONAL
PROCESS
Pre-wash Wash Rinse
Pre-wash
ZANUSSI
IDEAL WASH
SYSTEM
Wash Rinse
50°C
10°C
85°C
Washware hygiene
The atmospheric duo rinse system with built-up air gap
assures the highest rinsing quality. Hot water at a constant
pressure in any conditions guarantees that every washed
item will be detergent free and perfectly hygienic
The Duo rinse system ensures complete detergent removal
with minimum water consumption: hot rinse even from the
second rinse created by additional 3 kW electrical elements
in the duo rinse tank.
Detergent Rinse aid
Duo rinse pump Boiler
70°C 84°C
The Ideal Washing Performance (IWS) consists of separate
modules for pre-washing, washing and rinsing, this allows
to maintain the best working conditions in each washing
phase.
The pre-wash zone is now completely detached from the
detergent laden heated wash zone water, and uses only
fresh cold water, ideal to prevent protein food stuff from
sticking to the plates.
The wash zone is also physically separated from the rinse
zone (that in traditional systems is carried over from the
rinse area) so the wash tank is free of rinse aid which
typically weakens the working power of the detergent,
resulting in excessive detergent consumption.
The traditional dishwashers need to be completely drained
and re-filled at some stage, while the Ideal Wash System of
the Zanussi Professional Rack Type continues washing with
only a minimal quantity
of water, even during
long washing periods
which last several hours.
Duo Rinse system

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Ease of use
Thanks to the electronic control panel, both speeds can be
fine tuned on-site.
Drainage quantities and frequencies are all variable by
the electronic control panel in order to maximize washing
performance with minumum water consumption.
A clear user interface makes the machine
easy to use for any operator. The light
turns green when optimal rinse conditions
are met.
ON/OFF button
START/STOP button
Speed selector
Digital display
Functions and functions switch
Counter balanced door with springs open with minimum
operator effort and incorporate a safety device to block the
door during cleaning. Door handles designed to be accessed
from any position. Foam injection insulated doors to reduce
noise and cool uncomfortably hot surfaces.
Quick pull-out stainless
steel filters.
Easily removable “click-
in / click-out” wash
arms.
Washing chamber without internal pipes
Easy cleaning and
maintenance
Pressed tanks in the
pre-wash, wash and
rinse zones, sloped
towards drain to prevent
dirt build up.