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SW 9.xx
Central Automatic Chemical Disinfection
The hypochlorite disinfectant Tiutol KF must be applied (mixing ratio
maximum 65 ml Tiutol KF per litre).
The user is responsible to integrate the dialysis machine in the dialysis
centre’s central water loop system, if the
Central Automatic Chemical
Disinfection is used.
The retention time must be
≤
10 hours if the retention is disabled, i.e. the
Retention Time is set to YES, thus, no Central Automatic Chemical
Disinfection.
This disinfection method can be used for the
disinfection of the water inlet line in dialysis
centres with central water loop systems.
A defined inlet volume (disinfectant) from the
water loop line is sucked in as follows (see dotted
lines in the flow diagram):
•
FPA/UFP
decrease the water level in the
upline tank
VB
to the lower level sensor
NSVB
•
The upline tank
VB
(approx. 260 ml inlet
volume) is filled with disinfectant to the
upper level sensor
NSVB
, due to the water
pressure at
VVBE
from
•
the central water loop system
•
Filling is repeated until the preselected
volume is reached
•
Retention time (machine is switched off)
•
Rinsing via
VB
,
RVE
,
VLA
,
LA
and
FPA
to the
outlet
Phase 1
•
machine is filled and emptied 5 times, i.e the disinfectant is volume
controlled and sucked in and emptied by the central water loop line
Phase 2
•
cyclic rinsing (time controlled -- rinsing time and rinsing flow
EK
RVUFP
C
D
VBP
B
C
FBK2
FBK1
RVFPA
LAFS
RVDA
VZ
VLA
VDA
VABK2
VDABK2
VABK1
VDABK1
BK2
BK1
VEBK2
VDEBK2
VEBK1
VDEBK1
MSBK2
MSBK1
LA
UFP
ENDLF-S
ENDLF
BICLF
TSBIC
TSD
RVFPE
BL
FPE
PDA
FPA
TSD-S
DMV
VVBE
TSE
H
NS
V
B
TSHE
T
T
8
T
A
D
T
8
VB WT
FEP
T
DDE
VDE
TSDE
T
WAB
Central Water Loop System
Outlet
EP
VEB
PE
TSH
T
8
RVK
RVB
A
B
BICP
KP
Fig.: Flow Diagram - Central Automatic Chemical Disinfection of Water Inlet
