Fresenius Medical Care 460018, Operator'S Manual

Page: 29 / 75

P/N 460018 Rev. D 23
S
ECTION
8: M
AINTENANCE
The Dry Acid Dissolution Unit has been designed for ease of use and trouble free operation. However, a minimal
amount of preventive maintenance is required in order to maintain the Dry Acid Dissolution Unit in good
working condition and minimize the possibility of a system malfunction.
The recommended program for proper care of the Dry Acid Dissolution Unit consists of four basic steps. They
are: (8.1) Regular visual inspection, (8.2) Cleaning (8.3) Sodium Hypochlorite (Bleach) Disinfection and (8.4) Filter
Maintenance.
8.1 V
ISUAL
I
NSPECTION
Visually inspect the Dry Acid Dissolution Unit prior to mixing a batch. The operator should look for any
defects which may inhibit the safe or proper operation of the Unit. Items such as damaged hydraulic hoses
or fittings, damaged electrical cables or connections, loose, missing or damaged hardware or process
contamination should be corrected prior to the use of the Dry Acid Dissolution Unit.
Should the power cord or plug become cracked, frayed or otherwise damaged, it should be replaced
immediately. Tag unit “OUT of SERVICE” until the repair is made. Always remove the power cord from the
power source before attempting to service this device. Never unplug the unit by pulling on the power cord.
8.2 C
LEANING
Clean the exterior surface of the Dry Acid Dissolution Unit thoroughly after each batch of concentrate is
mixed. If necessary, a mild detergent solution may be used to clean the exterior surface. Care should be
taken not to contaminate the system interior. All spills should be wiped off immediately. Spillage at the
control panel should be avoided in order to minimize the possibility of electrical malfunction.
8.2.1 P
REVENTIVE
M
AINTENANCE
S
EE
T
ABLE
1: R
OUTINE
M
AINTENANCE
S
CHEDULE ON PAGE
30.
8.3 S
ODIUM
H
YPOCHLORITE
(R
EGULAR
B
LEACH
) D
ISINFECTION
To start the disinfection process, power OFF the Dry Acid Dissolution Unit, remove the Filter Housing and
discard the Filter Element. Place the residual fluid from the Filter housing in the Residual Solution Bucket.
Reinstall Filter Housing, but do not insert a Filter at this time. Connect the Transfer Nozzle to the end of the
Dissolution Unit’s Transfer Hose and make sure the valve on the Transfer Nozzle is in the CLOSED position.
In addition, loosen the top Access Lid, but leave it in place. Ensure you have the appropriate personal
protective equipment donned.
WARNING! T
O PREVENT ACCIDENTAL SHOCK HAZARD
,
THIS DEVICE MUST BE PLUGGED INTO A PROPERLY GROUNDED
GFI
PROTECTED THREE WIRE RECEPTACLE
AC
CIRCUIT
. D
O NOT EMPLOY EXTENSION CORDS OF ANY KIND
. W
HEN THE POWER
CORD IS NOT LONG ENOUGH TO BE SERVICEABLE
,
A LICENSED ELECTRICIAN MUST INSTALL A NEW THREE WIRE GROUNDED
RECEPTACLE IN ACCORDANCE WITH THE
N
ATIONAL
E
LECTRICAL
C
ODE
. D
O NOT USE A THREE TO TWO PRONG PLUG
ADAPTER WITH THIS DEVICE
.

CAUTION! D
O NOT USE CHEMICAL CLEANING AGENTS THAT MAY DAMAGE THE MATERIAL USED IN THE
D
RY
A
CID
D
ISSOLUTION
U
NIT
. A
GENTS WHICH CONTAIN
BENZENE, TOLUENE, XYLENE, ACETONE
OR ANY OTHER
AROMATIC
OR
KETONE
SOLVENTS MUST BE AVOIDED
.
NOTE: U
SE
O
NLY
5%
TO
10% S
ODIUM
H
YPOCHLORITE
(
REGULAR BLEACH
)
TO DISINFECT THE
D
RY
A
CID
D
ISSOLUTION
U
NIT
.
WARNING!
ENSURE THE TRANSFER HOSE IS NOT CONNECTED TO A CONCENTRATE STORAGE
CONTAINER/TANK.
NOTE: A RINSE CYCLE
CONTAINS TWO
RINSE O
PERATIONS THAT RUN IN SEQUENCE WITHIN ONE COMPLETE
RINSE
CYCLE. T
HE
1
ST
R
INSE
O
PERATION CONSISTS OF
F
ILL
, R
ECIRCULATION
,
AND DRAIN
. 2
ND
R
INSE
O
PERATION CONSISTS OF
F
ILL
,
R
ECIRCULATION
,
DRAIN
,
AND
C
YCLE
C
OMPLETE
.