Eco Active Wash; Pre Bowl/ Basket Float; 23 Rpm Stir; Variable Profiles - Fisher & Paykel AquaSmart WL26CW1 Product Information

Eco Active Wash

AquaSmart™ begins each cycle with an Eco Active wash, designed to
activate detergent and use hot water more efficiently. Just enough
warm water is added to the machine so the clothes are saturated.
This creates a highly concentrated detergent solution that is circulated
through the clothes – the sudsy water is diverted up a special portal
and is sprayed back over the clothes in a waterfall effect.
process thoroughly dissolves and activates the detergent, and the high
detergent concentration ensures optimum soil removal.

Pre Bowl/ Basket Float

The filling procedure begins by testing for basket float (a process known as prebowl) in order to
gain an indication of the load size. This is done by periodically accelerating the motor to test
the inertia of the system. Inertia is decreased dramatically at the point of clutch disconnection.
Once the basket float level has been measured, filling will cease and agitation can begin. Where
Conventional cycle has been selected, an immersion water level is calculated as an offset of this
basket float value.
AGITATE

23 Rpm Stir

The AquaSmart™ DC motor allows the basket or agitator to be moved at any speed. During fill,
the basket is rotated slowly (23 rpm) to ensure even wetting of the clothes (except for the first
1 inch (25mm) when water is flushed through the detergent dispenser, during which the basket
is idle).

Variable Profiles

AquaSmart™ has an intelligent system that uses the basket float value to calculate a wash
profile based on a wash curve (y=mx+c), rather than a set of discrete values, such as
SmartDrive™ uses. The advantage of this system is that, in combination with load composition
sensing, each load will have an individual water level and wash profile specifically tailored for it.
Each wash will use at least two different profiles – an initial profile, that is more vigorous and is
designed to instigate blooming in the first part of the wash, and a turnover profile, that is used
for the majority of the wash. AquaSmart™ will revert to the initial profile for 10-seconds every
minute to help continue load turnover.
How does it work?
Once the basket float value is determined,
this is used to determine the wash profile
based on a series of wash curves.
For example, the speed is calculated using
the wash curve y= 41x + 28, where x=
basket float. If the basket float value was
170, then the speed of the agitate stroke
would be 98rpm (y= (0.41 x 170) + 28).
This
SMALL LOADS BF </= 199 VALUES
Initial
m
41
Speed
-6
Ramp
-4
Plateau
Above. Example of some wash curves used by AquaSmart™ to
determine wash profiles via y= mx+ c curve, where x= basket
float value.
Turnover
c m
28 40
117 15
45 -7
c
30
91
49