Fabdec CB2-1L120000, Installation And Operation Manual

Page: 22 / 92

Page 22
Cleaning methods
In section 6.1, 4 cleaning methods for different cooling tank configurations are
described. In the following all 4 methods are described, whereby the specific differ-
ences are marked in colour.
6.1.1 6.1.2 6.1.3 + 6.1.4
A cleaning cycle consists of up to nine different cleaning stages. The frequency of
each stage during a cycle can be set by the user. See parameter [r40 to r48].
During the cleaning cycle the current programme step is displayed.
Cleaning stage 0 : RINSE OUT
Parameter [r40] = 0 ‘Cleaning stage 0’ disabled
Parameter [r40] = 1..5 ‘Cleaning stage 0’ execute x-times
Water is taken in. The parameter [r50] is used to stipulate whether cold, hot or
mixed water is to be taken in.
Furthermore, for "Cleaning stage 0", the water intake time was set [n01].
Agitator and pump start to run, the outlet valve will open.
The water circulates for the pre-set time [n02].
Agitator and pump switch off.
Drain valve opens for the pre-set time [n03]. The drain valve is assigned to the
respective cleaning stage via the parameters [r60 to r68].
Parameter [r24 / r25] determines whether the drain valve is normally open or
normally closed. Applies to all cleaning stages.
Cleaning stage 1 : PRE-RINSE 1
Parameter [r41] = 0 ‘Cleaning stage 1’ disabled
Parameter [r41] = 1..5 ‘Cleaning stage 1’ execute x-times
In case of cleaning method 'green' – it is set in programme step [n10] how often
the feed container is filled with water up to level 2 and water is pumped back up
to level 1. As long as the rinsing pump is running, the drain valve is open.
Water is taken in.
The parameter [n11] is used to stipulate whether water will be taken by level or
time.
If time-controlled, the water intake time is defined in parameter [n12].
If, in the event of intake by level, the level is not reached after a pre-set time
[r32], the cleaning cycle is interrupted. See section .5.3 - F44
7
The cleaning parameter [r51] is used to stipulate whether cold, hot or mixed
water is to be taken in.
Agitator and pump start to run.
Another option is to select an 'additional water intake time' using [n13].
The water circulates for the pre-set time [n14].
6. Cleaning
6.3 Explanation and programming of the cleaning process
Displacement cleaning
with dosing pumps
and feed container
Circulation cleaning
with beaker
Circulation cleaning
with dosing pumps
Only reasonable for
yellow and pink
In case of green
n n 11 and 12 have to be
parameterized on „0“
In case of green
n 3 1 have to be
parameterized on „0“