AmeriWater CENTURION 1500+ User manual

CENTURION 1500+
Chemical Cleaning & Heat Disinfection
Instructions
P/N 98-2013
REV.D

Table of Contents
1.0 PREFACE......................................................................................................................1
2.0 CONTACT US ...............................................................................................................2
3.0 HEALTH AND SAFETY ................................................................................................3
4.0 CHEMICAL CLEANING AND HEAT DISINFECTION...................................................4
4.1EXPLANATION –WHY DOES THE UNIT REQUIRE REGULAR CLEANING/HEAT DISINFECTION......4
4.1.1 Frequency............................................................................................................4
4.1.2 Cleaning/disinfection chemicals...........................................................................2
4.1.3 Chemical selection guideline ...............................................................................2
4.1.4 Mixing Instructions for Americlean A and Americlean B ......................................3
4.2HOW TO CARRYOUT A CHEMICAL CLEAN ..........................................................................4
4.2.1 Chemical clean sequence....................................................................................4
4.3HOW TO CARRYOUT A HEAT DISINFECTION.....................................................................10
4.3.1 Heat disinfection sequence................................................................................10
4.4INTERRUPTION TO ELECTRICAL SUPPLY DURING THE CHEMICAL CLEAN CYCLE...................14
5.0 TROUBLESHOOTING ................................................................................................15
5.1ALARM MESSAGES DURING CHEMICAL CLEAN & HEAT DISINFECTION ...............................15
5.2SAMPLE PORT/ QUICK DISCONNECTION DISINFECTION PROCEDURE ...............................17
6.0 MATERIAL SAFETY DATA SHEETS.........................................................................18
6.1AMERICLEAN A...........................................................................................................18
6.2AMERICLEAN B...........................................................................................................21
6.3PERACIDIN .................................................................................................................24

1
1.0 PREFACE
Once trained and approved to do so by your Healthcare provider this detailed
step by step guide will show you how to chemically clean and carry out
routine heat disinfection cycles.
This guide is a supplement to the Operating Manual, if further information is
required regarding the operation of the unit always refer back to the
Operating Manual.
Please read the instructions carefully and make sure that you fully understand
the information given before performing a chemical clean or carrying out a
heat disinfection on the unit.
A detailed Service & Maintenance Manual is available and will be held by
your Healthcare provider. The Service Manual provides all of the necessary
information for a qualified technician to maintain and service the unit.
Details on how to install & commission the Centurion 1500+can be found in
the supplementary Installation & Commissioning Guide. Installation of the
unit would always be carried out by your Healthcare provider or an approved
trained technician.
WARNING: Before operating the unit always check to see that the water and electrical
connections are secure and not likely to cause a trip hazard. If you have concerns about the
unit or are unsure of its operation contact your Healthcare provider for advice and assistance.
Whenever this symbol is used on the unit always refer back to
the Operating Manual.

2
2.0 CONTACT US
If you require help or advice use the contact numbers below:
AmeriWater: Tel No. 800-535-5585
(Or your local authorized AmeriWater distributor/ dealer or Healthcare provider)
Useful Telephone Nos.
Healthcare Provider:
Tel No………………………………Contact Name:……………………………….
Tel No………………………………Contact Name:……………………………….

3
3.0 HEALTH AND SAFETY
CAUTION: Explanation of expressions
WARNING
This symbol is used to alert the user not to take a certain action, which if taken could cause a
potential hazard and result in a serious adverse reaction, injury or even death. The warning
symbol may also be used to alert the user to take a certain action avoid a potential hazard.
In all cases within this document, where this symbol is used it is important that you familiarise
yourself with the nature of the potential HAZARD and any action that needs to be taken. If in
doubt ask your Healthcare provider.
Note:
A reminder or useful information that can be used to explain an action or give guidance.
Note:
You will not be able start a chemical clean or heat disinfection unless you have been provided
with a key, the key allows you to switch the unit from normal ”Processing” mode to the
“CLEAN” position. Once you have been trained and approved to carry out cleans by your
Healthcare provider you will be given a key. Always keep the key in a safe place when the
unit is normal operation and DO NOT leave it in the key switch.
Warning:
Chemical cleaning of the unit MUST only be carried by an approved or person trained by
AmeriWater or your Healthcare provider. DO NOT attempt to clean the unit if you have not
been trained.
DO NOT use any other household cleaner to clean the unit, only use those cleaners supplied
by AmeriWater, or your Healthcare provider or you may risk causing severe damage to the
unit and its components and pose a serious risk to yourself or the person on dialysis.
If You wish to clean the unit and carry heat disinfections yourself please contact AmeriWater
or your Healthcare provider who will provide all the necessary instructional training, approved
cleaning chemicals, instruction leaflet and security key to enable the cleans to take place.
Your Healthcare provider will provide a cleaning program based on your specific
requirements and frequency of dialysis.
Always refer to the material safety datasheets provided by your Healthcare provider before
handling chemicals.

4
4.0 CHEMICAL CLEANING AND HEAT DISINFECTION
4.1 Explanation – why does the unit require regular cleaning/heat
disinfection.
The process by which the unit purifies water is reverse osmosis (RO). This
process uses a very fine filter, generally referred to as a membrane which
removes dissolved minerals and bacteria from the water supply. Over time
these impurities can build up on the surfaces of the membrane. To maximize
the life of the RO membrane and to ensure the permeate quality meets the
requirements for haemodialysis, regular chemical cleaning and heat
disinfection of the unit is recommended to remove minerals and bacteria that
may have built up on the membrane.
Both of the processes have been designed to be as simple and automatic as
possible.
The display screen will guide you through the process with a series of
instructions at every stage.
To avoid handling the chemicals and the risk of spillages the unit incorporates
a system which automatically draws the chemical cleaning agent directly from
the chemical cleaner bottle into the unit.
4.1.1 Frequency
The need for cleaning and disinfection will vary from patient to patient and
location and will depend on the quality of the incoming water supply. For
example where a high degree of bacterial control is required regular heat
disinfection is recommended. In areas where an un-softened water supply is
used (i.e. has high levels of dissolved calcium and magnesium salts) it is
recommended that a high and low pH chemical cleaning is carried out
quarterly. A cleaning schedule when using a softened water supply may be
based on a loss of flow and/or water quality. Environmental conditions may
warrant more frequent cleanings of the membrane.
Note: Your Healthcare Provider will carryout an assessment of your water supply and provide
you with a schedule for cleaning and heat disinfection. DO NOT carry out any additional
cycles, unless you have approval by your healthcare provider that it is acceptable to do so.

2
4.1.2 Cleaning/disinfection chemicals
Your Healthcare provider will supply you with the necessary chemical cleaning agents
suitable for your unit.
Warning:
DO NOT use any other household cleaner to clean the unit, only use those cleaners supplied
by AmeriWater, or your Healthcare provider or you may risk causing severe damage to the
unit and its components and pose a serious risk to yourself or the person on dialysis.
4.1.3 Chemical selection guideline
AmeriClean A is a liquid based acid cleaner for descaling and iron removal.
AmeriClean B is a multi-purpose alkaline cleaner, containing sequestrants, detergents
and emulsifiers for the removal of dissolved/colloidal organic compounds.
Warning:
Do not use AmeriClean B while the ultra-filter is installed.
Peracidin contains a mixture of peracetic acid and hydrogen peroxide and is used as
an effective disinfecting agent.
Note: Your Healthcare provider will provide a cleaning program based on your specific
requirements and frequency of dialysis.
Units fitted with an ultra-filter can be sanitized with AmeriClean A or Peracidin ‘in situ’ during
the normal chemical cleaning cycle. AmeriClean B MUST NOT be used with the ultra-filter
installed.

3
4.1.4 Mixing Instructions for Americlean A and Americlean B
The Americlean A and Bchemical cleaners are supplied in a kit (P/N 37-
0006 AmeriClean A or 37-0007 AmeriClean B) containing enough cleaner for
12 cleanings and 2 bottles. The following instructions detail the method
required for mixing the chemical solution for use in the cleaning. The cleaning
solution will be mixed each time a cleaning of the RO membrane is required.
1.Locate a bottle of the desired cleaner containing the cleaning powder
out of the kit. The bottle will be marked Americlean B for the high pH
cleaner or Americlean A for the low pH cleaner.
2. Add 1.5 tablespoons of AmeriClean A powder or 2 tablespoons of
AmeriClean B. The label on the bottle provides information for mix
volumes.
CAUTION: Never Mix AmeriClean A and B. Always use different measuring
devices and bottle for each cleaner solution if both a high and low
pH are being conducted.
3. Fill the 237 ml bottle using clean water (RO or DI water is preferred
when possible). Use water at 86 °F for best results. Water should not
exceed 110 °F. Reinstall the lid on the bottle.
4.Shake the solution very well until the powder is completely dissolved.
5.Once the powder is dissolved in the solution completely, verify the pH of
the solution. Americlean A should have a pH of 2-3 and Americlean B
should have a pH of 10-11. When the pH is verified, the cleaner is
ready for use.
6.Cleaning should be performed using the High pH cleaner first to
remove inorganic scale and metals followed by the Low pH cleaner
second to remove insoluble foulants following the steps described in
section 4.2.
7.Once the cleaning is completed following the steps described in section
4.2, rinse out the bottle provided in the kit and store until next use.

4
4.2 How to carryout a chemical clean
To start the chemical cleaning routine just follow the simple on screen
prompts which will guide you through every step of the sequence.
NB: The approximate duration of the cleaning cycle is 90 minutes.
4.2.1 Chemical clean sequence
Displayed Screen Operator Action/s
Step-1
Step-2
From the
“POWER
-
ON”
screen
select “MENU”. The “USER
MENU”
will be
then
displayed.
Turn the key switch on the rear of
the unit to the “CLEAN” position. If
this is not selected the unit will
revert back to the “POWER-ON”
screen if a chemical clean is
attempted

5
Step-3
Step-4
Step-5
Select
“
Chemical
C
lean
”
from the
menu listing then press the
“ENTER”
button.
Clean
ENTER
BACK
Chemical Clean
Heat Disinfection
Heat San Result
Are You Sure?
USER MENU 1/05/12 10:41
Yes
No When the message “
Are You
Sure?” is displayed; press “YES”.
You will then be prompted to turn
the key at the rear of the unit to
the “CLEAN” position. The
chemical clean routine will then start.
If you select “NO” you will return to
the “POWER-ON” screen.
USER MENU
ENTER
BACK
15.04.12
Clean
Time & Date
Filter Date
Product
Information
Engineer Menu
From the drop down USER MENU
list select “CLEAN”, press
“ENTER” to proceed to the next
step.

6
Step-6
Step-7
Step-8
Cleaning
Cleaning
Disconnect From Dialysis Machine
Press CLEAN to continue
CLEAN
Cleaning
Cleaning
Insert Draw Tube Into Bottle
Press CLEAN to continue
CLEAN
Cleaning
Tank Filling
2%
CHEMICALS
Cleaning
The unit will automatically adjust
the level of water in its internal tank
before the chemical cleaning agent
is added. This will only take a few
seconds and automatically proceed
to the next stage.
Now disconnect the external water
loop from the inlet of the dialysis
machine to ensure that no
chemicals can be fed into the
dialysis machine, Press,
“CLEAN” to continue to the next
step.
Unscrew the lid on the top of the
chemical. The cleaning solution
mix instructions can be found in
section 4.1.4. Once the solution is
made, place the 4 mm tubing
connected to the “ACID” port at
the rear of the unit into the bottle.
Make sure the tube goes all the
way down to the bottom. Press
“CLEAN” to continue to the next
step.

7
Step-9
Step-10
Step-11
.
Cleaning
Draw Pipe Rinse
10%
CHEMICALS
Cleaning The water in the bottle will then
be drawn up through the tubing
to rinse it free of chemical
Cleaning chemical draw
2%
CHEMICALS RECIRCULATING
Cleaning
The chemical in the bottle will now
be sucked into the unit. This
should only take about 30-60
seconds. At the end check to
make sure the bottle is empty. (It
is normal for a very small amount
to remain in the bottle). The unit
will automatically continue to the
next step.
Cleaning
Cleaning
Fill Bottle with Water
To Rinse Pipe
Press CLEAN to continue
CLEAN
To rinse the blue tubing fill the
bottle with tap water and replace
the tubing back into the bottle,
then press “CLEAN”.

8
Step-12
Step-13
Step-14 Once the unit has finished its first
rinse it will then enter into the
final Flush routine. During this
part of the cycle the purified
water should be tested using the
chemical test strips supplied by
your Healthcare provider. The
“Service Flush” cycle lasts for
10 minutes. If the Clean button is
not pressed within 10 minutes it
will repeat the “Service Flush”
again until the water is
acceptable. If the water shows
clear of chemical press the
“CLEAN” button to enter the
final stage of the process. If the
tests still show positive leave in
Flush mode until acceptable.
Service Flush
Cleaning
Test For Residue Of
Cleaning Chemicals
When Water Is Acceptable
Press CLEAN to continue
CLEAN
Cleaning
Recirculation
15%
CHEMICALS RECIRCULATING
Cleaning The unit will automatically
recirculate the cleaning
chemical for approximately 30
minutes and then carry out both
high pressure and low pressure
flushing cycles so don’t be
alarmed if the unit sounds
different to normal operation.
Cleaning
Rinse Cycle
40%
CHEMICALS
Cleaning
At the end of the recirculation
cycle the unit will go
immediately into a rinse cycle
flushing the cleaning chemicals
out of the unit for approximately
45 minutes

9
Warning:
It is essential that the water quality is checked and free from chemicals before use and that
you are satisfied it is safe to dialyse. If you are unsure about the quality of the water always
seek advice from your Healthcare Provider.
If after two 10 minute flush cycles have taken place and the test for residual cleaning
chemical is still unacceptable, contact your Healthcare provider or AmeriWater for advice.
DO NOT use the unit until it is safe to do so and instructed by your Healthcare provider.
Step-15
Step-16
Once the water has tested clear of
chemical the next step will be to
reconnect the external water loop
back up to the dialysis machine.
Turn the key located at the rear of
the unit to the “SERVICE” position.
Press “CLEAN” and this should
take you back to the “POWER-ON”
screen ready for your next dialysis
session.
Cleaning
Cleaning
Reconnect To Dialysis Machine
Key Switch To SERVICE
Press CLEAN to continue
CLEAN
Cleaning
Cleaning
Alarm During Cleaning
High pressure
Low Pressure
Water Leak
Press CLEAN To Continue
CLEAN
If the unit detects a fault during the
chemical clean process, this alarm
screen will be displayed along with
a message relating to the possible
fault. Pressing ‘CLEAN will resume
the process if safe to do so. If
pressing “CLEAN” does not
resume the disinfection sequence,
or the alarm screen keeps
appearing, refer to Section 5

10
4.3 How to carryout a heat disinfection
To start a heat disinfection routine just follow the simple on screen prompts
which will guide you through every step of the sequence.
4.3.1 Heat disinfection sequence
Step-1
Displayed screen Operators actions/notes
Step-2
From the
“POWER
-
ON”
screen
select “MENU”
Turn the key switch on the rear
of the unit to the “CLEAN”
position.
If this is not selected the unit will
revert to the “POWER-ON”
screen if a heat disinfection is
attempted.

11
Step-3
Settings menu
Step-4
Step-5
USER MENU
ENTER
BACK
15
/
04
/
12 12:36
Clean
Time & Date
Filter Date
Product
Information
Engineer Menu
Select
“CLEAN”
from the USER
MENU list.
Are You Sure?
USER MENU 1/05/12 10:41
Yes
No
When the “
Are You Sure?”
message is displayed; press
“YES” and the heat disinfection
routine will start. If you select
“NO” you will return to the
“POWER-ON” screen
Clean
ENTER
BACK
Chemical Clean
Heat Disinfection
Heat San Result
Select
“
Heat Disinfection
”
from
the menu listing then press the
“ENTER” button.

12
Step-6
Step-7
.
Step-8
Tank Filling
2%
HOT WATER
Heat Disinfection
Heat Disinfection
Heat Disinfection
Disconnect From Dialysis Machine
Press CLEAN To Continue
CLEAN
Temperature Ramp
Minutes: 90
Ring: 59°F Tank: 62°F
5%
HOT WATER
Heat Disinfection
Once the unit’s internal tank has
filled with the correct amount of
water the following message will
ask you to disconnect the
distribution manifold connection
from the Dialysis machine. This will
stop any chance of hot water from
entering the dialysis machine and
possibly causing any damage.
Select “CLEAN” to continue to the
next step.
The unit now carries out some
internal safety checks. If all checks
are complete, the unit will then
start to heat the water up. If the
unit does not reach temperature
within 90 minutes the unit will
revert to a rinse cycle and the
alarm message “Heatsan failure”
will be displayed.
If this should happen refer to
Trouble shooting Section 5 of the
Operating Manual
At the start of the cycle the unit’s
internal tank will fill with water.
The progress bar at the bottom of
each screen tells you how much
of the disinfection cycle has
completed.
Alarm/warning messages will also
be displayed.

13
Step-9
Step-10
Step-11
Recirculation
Minutes: 30
Ring: 185°F Tank: 190°F
48%
HOT WATER RECIRCULATING
Heat Disinfection
Rinse Cycle
Ring: 73°F Tank: 77°F
92%
HOT WATER
Heat Disinfection
Heat Disinfection
Heat Disinfection
Reconnect to Dialysis machine
Key Switch to SERVICE
Press CLEAN to continue
CLEAN
When the unit reaches disinfection
temperature it will then continue to
recirculate (the standard period is
30 minutes).
The temperature of the water in the
unit’s tank and the temperature of
the water recirculating around the
distribution loop is also displayed.
After the unit has performed its
disinfection recirculation period it
carries out a rinse cycle until the
water temperature reaches 95ºF.
The unit must be 95ºF or below for
10 minutes. If the temperature
increases above 95ºF during the
rinse, the 10 minute counter will
restart.
Next reconnect the distribution
manifold to the inlet of the dialysis
machine.
Turn the key switch at the rear of
the unit to the “SERVICE” position.
Select CLEAN to continue to the
next step. After this the “POWER-
ON” state will be displayed and the
message “Heat Dis Completed”
displayed.

14
Step-12
Step-13
4.4 Interruption to electrical supply during the chemical clean cycle
Warning:
Once started the chemical cleaning process has to be completed. If there is an interruption the
program resumes from the point where the interruption took place. This is to ensure the unit is
rinsed free of any chemical residues.
Heat Disinfection
Heat Disinfection
Alarm During
Cleaning
High pressure
Low Pressure
Water Leak
Press CLEAN To Continue
CLEAN
Heat Dis Result
Date
16/04/10
Result Pass
CLEAN
BACK
Interrogation of the Heat Dis Result
screen (from the Clean menu) will
show the result of the last heat
disinfection together with any failure
message if relevant. Refer to
Section 5 “Troubleshooting” and
contact your Healthcare provider if
necessary
RESTART
Cleaning
Cleaning Interrupted by Power Down
Press CLEAN to continue
CLEAN
If the unit detects a fault during the
heat disinfection process, this
alarm screen will be displayed
along with a message relating to
the possible fault. Pressing
‘CLEAN will resume the process if
safe to do so. If pressing
“CLEAN” does not resume the
disinfection sequence, or the
alarm screen keeps appearing,
refer to Section 5
If there is an interruption in the
electrical supply the chemical
cleaning process will stop. Once
the electrical supply is restored a
text screen message “Cleaning
Interrupted by Power Down” will
be displayed. Press “CLEAN” to
continue. This is to ensure that the
unit is fully rinsed free of chemical
before further dialysis can take
place.