Davey microlene MCS User manual

Please pass these instructions on to the operator of this equipment.
Aquashield Centurion 3 Stage
UV Disinfection System
Models: MCS & MCXS (without cartridges)
KMCS & KMCXS (with cartridges included)
Installation and Operating
Instructions
Flow Rate
(30mJ/cm2@ 95% UVT) 57 L/min
AS/NZS: 3497

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Aquashield Centurion 3 Stage UV Disinfection System
Congratulations on purchasing this ultraviolet disinfection system. By purchasing a
Davey Microlene UV Disinfection system you are receiving not only a high quality
product but also peace of mind. Protecting your water supply with a UV system gives
you reassurance that your family will have access to safe drinking water throughout
your entire home protecting from microbiological contamination. This is a chemical
free process which is simple in its concept and effective in its abilities to inactivate
microorganisms present in the water supply.
• Simple maintenance
• Continuous disinfection
• Safe water
Microlene makes it that easy.
These instructions are also available in soft copy via email from Microlene Customer
Service, or by downloading at daveywater.com.

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Contents
Safety Considerations................................................................................................4
Before You Begin........................................................................................................4
Water Quality Parameters..........................................................................................5
Assembly.....................................................................................................................6
System Sizing .............................................................................................................7
Location.......................................................................................................................7
Orientation ..................................................................................................................8
Installation...................................................................................................................9
System Disinfection .................................................................................................12
Cleaning the Quartz Sleeve .....................................................................................12
Cleaning the UV Sensor...........................................................................................13
Operation...................................................................................................................13
MCS Controllers..................................................................................................14
MCXS Controllers ...............................................................................................14
MCXS Power-up Sequence ................................................................................14
MCXS Operational Screens................................................................................15
MCXS (with optional sensor) Operational Screens .........................................16
Lamp Countdown Sequence..............................................................................16
Lamp Replacement (MCS systems) ..................................................................17
Lamp Replacement (MCXS systems)................................................................17
QR Codes.............................................................................................................17
System Troubleshooting ....................................................................................18
Temperature Management Devices ........................................................................19
Expansion Modules..................................................................................................20
Microlene Aquashield Centurion UV System Specications ...............................21
Limited Warranty Statement....................................................................................22

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Safety Considerations
Although your UV system has been manufactured to the highest safety standards,
care must be followed when operating and/or maintaining your system.
1. Please read the instructions.
- This appliance contains a UV-C emitter.
- Unintended use of the appliance or damage to the housing may result in the
escape of dangerous UV-C radiation. UV-C radiation may, even in little doses,
cause harm to the eyes and skin.
- The appliance must be disconnected from the supply before replacing
the UV-C emitter.
- The appliance is intended to be permanently connected to the water mains and not
connected by a hose-set.
2. Before servicing this equipment, disconnect the power cord from the
electrical outlet.
WARNING: Do not operate the UV-C emitter when it is removed from
the appliance enclosure.
3. Energy given off by the UV lamp is harmful to your eyes and skin.
NEVER look directly at an illuminated UV lamp without adequate eye
protection and always protect your skin from direct exposure to the UV light.
4. For complete disinfection, use ONLY genuine replacement parts.
5. The appliance is not to be used by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction.
6. Children should be supervised so that they do not play with the appliance.
7. To avoid possible electrical shock, use only with a properly earthed
electrical outlet. Appliances that are obviously damaged must not be operated.
8. Never perform any maintenance to the system unless you are comfortable in
doing so. Contact the manufacturer for service instructions if required. Read
the maintenance instructions before opening the appliance.
9. Do not use this system for any purpose other than what it was intended for.
Misuse of this system could potentially cause harm to the user or others.
10. Your system is intended to be installed indoors and away from leaking plumbing.
DO NOT plug the unit in if the system or any of the components are wet.
The UV system should only be installed outdoors if a suitable covering has
been installed to prevent direct contact with the environment (Rain and/or
direct sunshine).
11. The appliance is to be supplied through a residual current device (RCD)
having a rated residual operating current not exceeding 30mA.
12. Maximum working voltage of built-n UV driver U-OUT-250V
13. Maximum operating pressure stated in the instruction manual is 827 kPa (120 psi).
14.Werecommendthatalicensedplumberorcertiedtechnicianinstallthesystem.

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15. An electrical power surge or spike can travel on the supply lines and cause
serious damage to your electrical equipment. If the installation is susceptible
to electrical power surges, or lightning, we strongly recommend the use of a
suitable surge protection device on ALL electrical equipment.
16. To protect your UV system from the weather, make sure the site is water proof,
frost free and has adequate ventilation. Allow for drainage, to avoid damage to
ooringetc.,thatovertimemayoccurfromleakingpipejointsorseals.
17. If the supply cord is damaged, it must be replaced by the manufacturer, its
serviceagentorsimilarlyqualiedpersonsinordertoavoidahazard.
This product is not to be used for general lighting / illumination.
Before You Begin
The following will be needed for installing the UV system:
Tools
•Pipecutter,hacksaworotherspecializedtoolsrequiredtocutintoyourexisting
plumbing (e.g. if you have PEX piping)
•Solderingtools(torch,ux,emeryclothandsolderasrequired
- depending on plumbing.)
•Wrench(fortighteningttings)
Other Materials
• Inlet/outlet connections
•Teon™threadtape
Water Quality Parameters
UV disinfection is extremely effective against microorganisms but only if the UV light
can pass through the water it needs to treat. This means that the quality of your water
is very important in order to ensure complete disinfection.
Treated water should be tested for at least the parameters listed below. If the
water exceeds the listed parameters Davey strongly recommends that appropriate
pretreatment equipment be installed (equipment required will depend on parameters
being treated):
Hardness: <120mg/L (7gpgUS) – if hardness level is 120mg/L (7 gpg)
  orslightlybelowthequartzsleevemustbecleaned 
  periodicallyinordertoensureefcientUVpenetration;if
above the water must be softened.
Iron (Fe): <0.3 ppm (0.3 mg/L)
Manganese (Mn): <0.05 ppm (0.05 mg/L)
Turbidity: < 1 NTU
Tannins (organics): <0.1 ppm (0.1 mg/L)
UVT (transmittance): 85% (Please contact Davey if water has a UVT that is
less than 80% for pre-treatment recommendations)
You can have your water tested via your local dealer or a private analytical laboratory.
Itisalwaysrecommendedtoinstallpre-ltrationofatleast5microns(1micron
preferred for Cyst removal on Rain Water) prior to a Microlene Aquashield Centurion
UV disinfection system.

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Assembly
The Microlene Aquashield Centurion 3 Stage UV disinfection system is designed with
a single inlet and outlet port. Unpack the system and ensure all the components are
included in the box. Your system is shipped with the following components:
1 Controller
MCS-CONT(tsallMCSseriesunits)
MCXS-CONT(tsallMCXSseriesunits)
2 Gland Nut
Part # DM320006
3 O-ring
Part # DM300038
4 UV Lamp
Part # MC-HOLP
5 Sleeve Spring
Part # DM310039
6 Quartz Sleeve
Part # MC-HOSL
7 UV Chamber
8 Clamps
9 Flexible Hose
10 Mounting Plate
11 Filter Cartridges
(Only KMCS and KMCXS have
lters included)
Part # 20PP20J (20", 20 micron sediment)
Part # 1PS20J (20", 1 micron sediment)
12 Filter Housings
Part # DM160018(doublelterhousing,
two 20" sumps and caps)
13 Mounting Screws
14 Filter Wrench
Part # WFH45
15 UV Sensor
(optional module)
Part # MCXS-UVS
16 IEC Power Cable
Part # MC-CONT-PC Australian, AS/NZS
3112, 3 pin earthed
17 Glow Plug Assembly
(on MCXS /KMCXS units only)
DM300016 Complete Assembly includes
TeonPlug,O-Ring,BrassNut
18 Lamp Key
Comes with new UV lamps
(NOT sold separately)
(not for use on the MCS which has
the MCS-CONT controller)

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Location
Choose a location where the main cold water line is accessible. The system must
be installed after other water treatment equipment (i.e. softener), but before any
branches (See Figure 1).
Figure 1. Typical Installation
To facilitate lamp removal, ensure there is enough space at the lamp connector end
tosafelyremovetheUVlampand/orquartzsleeve(SeeInstallationFigure3).The
controller will require a Residual Current Device (RCD) outlet and should be mounted
beside or above the chamber.
IMPORTANT:
All Microlene Aquashield Centurion UV Disinfection Systems are intended to be
installed under a weather proof cover and should not be exposed to the elements.
MCS-C Weather proof cover (purchased separately)
• Protects the chamber and controller from rain and direct elements
• Enables the 3 Stage UV system to be set up left to right or right to left for ease of
installation.
• Mounting holes are aligned with the UV System
• Insert locking pin or screwdriver to lock
cover open during servicing
• Lamp change through side of the cover
holes, no disassembling required
• Made from: 1.2mm zinc-
titaniumlaminatezintek®
•Powdercoatedwithmattsatinblacknish

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Orientation
This system has the ambidextrous capability of being able to have the main water
inlet enter from either the left hand side or right hand side of the unit. The unit comes
pre plumbed from the factory for a left hand water inlet.
To change to a right hand water inlet follow these simple steps (See Figure 2):
Step 1: Removethetwoblackltersumphousingsfromthelterheadandsetaside.
Step 2: Removethelterheadscrewsfromthetopmountingplate.
Step 3: Carefullylowerthelterhead(orheads)fromtherackassemblyandrotate
180 degrees. Reassemble onto the rack assembly and take note of the
arrowslocatedonthetopofthelterheadsindicatingwaterow(whichnow
shouldbeindicatingaowdirectionofright-to-left).
Figure 2. System Orientation (water inlet)
Step 4: Remove the stainless steel UV chamber from the two plastic clamps located
on the top of the rack. Carefully remove the top straps securing the chamber
with the aid of a standard (slot) screwdriver. Rotate the chamber 180 degrees
(with the inlet now facing to the left and the lamp connections located towards
theright)andplacebackintothecellclampsandreafxthetwotopstraps.
 Ineithertheleftorrightcongurations,tofacilitatelampremoval,ensure
there is enough space at the lamp connector end to safely remove the UV
lampand/orquartzsleeve(SeeFigure3).
IMPORTANT:
All Microlene Aquashield Centurion UV Disinfection Systems are intended to be
installed under a weather proof cover and should not be exposed to the elements.

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Installation
Step 1: Once both the orientation and location have been
selected, securely fasten the rack to a suitable
backing. As the rack system is extremely heavy
whenlledwithwater,itisimperativethatthe
rack be mounted with suitable fasteners for the
particular installation. Mounting to a plasterboard
backing is not suitable, unless the rack is
fastened directly to the wall studs.
Step 2: The use of a bypass assembly is recommended
as it will allow you to isolate the UV system This
will allow for easier access in case maintenance
is required.
Step 3: Forwatersupplieswherethemaximumowrateisunknown,aow
restrictorisrecommendedsothattheratedowofyourparticularMicrolene
systemisnotexceeded.Theowrestrictorshouldbeinstalledontheinlet
port of the chamber.
Step 4: It is recommended to have a licensed plumber connect the UV chamber to the
water supply and may be a requirement depending on where you are located.
Step 5: Connect both the inlet and outlet to the rack system with the applicable
connections based on your particular plumbing requirements. The inlet port
ofthelterhousingisa1”FNPTconnectionandtheoutletportoftheUV
chamberisa1”MNPTconnection.
 TheseNPTthreadswillconnecttothesamesizeBSPthreadsonplastic
pipettings,alternativelyNPTtoBSPadaptersfromyour
local plumbing store can be used.
Step 6: Once the system has been plumbed in, gently remove the
quartzsleevefromitspackagingbeingcarefulnottotouch
the sleeve or lamp with your hands. The use of cotton
gloves is recommended for this procedure as oils from the
hands can leave residue on the sleeve and lamp which can
ultimately block the UV light from getting to the water.
Carefully slide the sleeve into the chamber until you can
feel it hit the opposite end of the chamber. Align the sleeve
so it is centered along the length of the chamber, then gently push it in to lock
it into the internal centering springs in the far side of the chamber. CAUTION:
Pushing too hard when the sleeve is not aligned can damage the centering
springs. Slide the o-ring onto the sleeve until it is butted up against the
chamber (See Figure 4).
Step 7: Handtightentheprovidedglandnutoverthequartzsleeveontothethreaded
endofthechamber.Ithasapositivestoptopreventovertightening.Arm
force may be required to fully tighten the gland nut, but DO NOT USE TOOLS
for this step. Insert the provided stainless steel compression spring into the
quartzsleeve.Thespringworkswiththelampandlampconnectortocreate
the proper lamp alignment. PLEASE NOTE: DO NOT install a UV lamp inside
thequartzsleevewithoutthesleevespringinplace.
Step 8: Installtheltercartridgesintheirappropriatehousings.Refertothe
specicationchartinthedatasheetorthisinstructionmanual.PLEASE
NOTE: This chart indicates the correct cartridge position for the default
“left-hand”orientationwiththewaterinletlocatedontheleftsideofthe
Figure 3. Lamp Removal Spacing
Figure 4. Quartz
Sleeve Installation

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rack system. If the orientation was switched, the cartridge placement must
alsobeswitched.Oncethecartridgesareinplace,usethesuppliedlter
wrenchto“snug”thelterhousingontothelterhead(SeeFigure5).
Figure 5. Cartridge Removal
Step 9: Install the UV sensor (optional and only compatible with the MCXS
system, not compatible on the MCS standard controller).Aligntheat
portion so it faces the gland nut end and matches up with the half metal lip
on the sensor port (see Figure 6). Insert the sensor so it is fully seated and
hand tighten the sensor nut. Insert the sensor connector into the IEP port
located on the right side of the controller (Figure 7). For the sensor to be
recognizedbythecontroller,thecontrollerpowermustbepluggedinlast.
Do not plug the controller power cord in before the last step.
Figure 6. UV Sensor Installation Figure 7. IEP Connection
Figure 8. High Output UV
Lamp Connection

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Step 10: Install the lamp key into the controller (MCXS/KMCXS systems only). The key
always comes packaged with the lamp and sits on the connector. With the key
removed from the lamp, orient it so the label is upright and facing you. The key
will plug into the lamp key port on the right side of the controller (Figure 8).
Note: All replacement lamps will come with a key. If you have the MCS
controller, the key should be discarded as it can’t be used in the MCS controller.
Step 11: Plug the lamp connector into the lamp. Note the keying for proper
alignment (see Figure 8). Insert the lamp connector into the gland nut and
turn the connector approximately ¼ turn to lock the connector to the gland
nut as in Figure 10.
Figure 9. Lamp Key Installation Figure 10. Lamp Connector
Step 12: Tighten the captive earth screw to the earth lug on the UV chamber to
ensure proper earthing.
Figure 11. Earth Screw Connection
Step 13: Your system is now ready to be plugged into the appropriate residual
current device (RCD) protected outlet. Refer to the following section before
anywaterisallowedtoowthroughthesystem.
Note: Installation of your Microlene disinfection systems must comply with
applicable provincial/state & local regulations.

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System Disinfection
With a new installation, or any time the UV system is shut down for service, without
power, or is inoperative for any other reason, the lines in the home or facility could be
contaminated. Use the following steps to fully disinfect the lines throughout the entire
home or facility.
For Rainwater tanks, add Acquasafe to your tank water supply and mainatin the
requiredresultonteststripsfortherstmonthatleast.Thiswillcleanyourpipelines
downstream without water wastage. Acquasafe can be used at the same time as UV
and is another protection against pathogens.
For other water sources or where the plumbing maybe suspected of having
contaminationtheuseofstrongerchemicalushingmaybeneeded.
Step 1: Checkforandremoveany“deadends”inthelinesthroughoutthehomeas
these can harbour bacteria. Plug in the UV system and wait until it is ready for
operation.
Step 2: Removetheltercartridgefromthelastsumpandllitwiththeapplicable
volume of plumbing sanitiser or 1-2 cups of household bleach (most are 5.25%
chlorine). Replace the sump and slowly turn on the water supply.
Step 3: At a water outlet, run the water until bleach can be smelled. Repeat this for
all faucets, toilets, shower heads, refrigerators, outdoor taps, the washing
machine,dishwasher,etc.atthehomeorfacility.Oncenished,waita
minimum of 30 minutes before continuing.
Step 4: Reinstalltheltercartridgeintothesumpandushthechlorinesolutionby
opening all faucets until chlorine can no longer be detected. Your home has
now been completely disinfected with your Microlene Aquashield Centurion
UV system ready to inactivate any microorganisms that enter the home.
Cleaning the Quartz Sleeve
Dependingonthewaterquality,thequartzsleevemayrequireperiodiccleaning.At
aminimum,thequartzsleeveshouldbecleanedonanannualbasis.Thefollowing
steps outline a basic cleaning procedure.
Step 1: If a by-pass assembly is installed, shut the inlet valve off to prevent water
owthroughthesystem.Otherwise,turnoffmainwaterinletvalve(and/or
turn off the water pump).
Step 2: Disconnect power cord of UV system from electrical outlet.
Step 3: Release water pressure by opening a downstream faucet and then close
the outlet shut-off valve (if any). If there is no outlet shut-off valve, expect
water to drain from the system as the head pressure in the system will
causethewatertoowbackdown.
Step 4: Remove the captive earth screw from the earth lug on the UV chamber.
Step 5: Remove the lamp connector from the chamber (gland nut) by pushing the
Lamp connector in and turning it ¼ turn counter-clockwise. Disconnect the
lamp connector from the lamp. CAUTION: the lamp may be hot!
Step 6: Being careful to touch only the ceramic ends, remove the lamp out of the
chamber.
Step 7: Unscrewtheglandnutfromthechamberexposingtheendofthequartzsleeve.
Step 8: Removethequartzsleeveando-ringbygently twisting and pulling the
quartzsleeve.

13
Step 9: Using a soft, lint-free cloth or towel wipe the sleeve down using a
commercial scale cleaner (i.e. CLR®or similar). This removes scaling or iron
depositsthatmaybeontheoutsideofthequartzsleeve.Becarefulnotto
get any moisture or liquids inside of the sleeve.
Step 10: Dry the sleeve with separate cloth.
Step 11: Replace the o-ring and slide the sleeve back into the chamber following steps
7 and 8 from the installation section of the manual.
Cleaning the UV Sensor
Depending on the water quality, the UV sensor may require periodic cleaning.
At a minimum, the UV sensor should be cleaned on an annual basis. The following
steps outline a basic cleaning procedure.
Step 1: If a by-pass assembly is installed, shut the inlet valve off to prevent water
owthroughthesystem.Otherwise,turnoffmainwaterinletvalve(and/or
turn off the water pump).
Step 2: Disconnect power cord of UV system from electrical outlet.
Step 3: Release water pressure by opening a downstream faucet and then close
the outlet shut-off valve (if any). If there is no outlet shut-off valve, expect
water to drain from the system as the head pressure in the system will
causethewatertoowbackdown.
Step 4: Place something under the chamber to catch any water that may come out
of the chamber during the removal of the UV sensor.
Step 5: Unscrew (counterclockwise) sensor nut from the chamber and pull the
sensor slowly out of the sensor port.
Step 6: Holdingthesensorinyourhandwipetheatportion(sensorface)ofthe
sensor with isopropyl alcohol using a clean lint-free cloth.
Step 7: Replace sensor following step 9 from the installation section of the manual.
Operation
Microlene systems come with a feature laden controller that incorporates both
the lamp driver (ballast) and control features in one water-tight case. Two main
controllers are available for the Microlene systems (depending on your model).
Both models feature a power factor corrected, constant current lamp driver with
a universal power input.
PleaseNote:WhiletheLEDordisplayscreenisredandthebuzzerissounding
the water from the system should NOT be consumed. If any water does pass
through the system during this period, please follow the disinfection procedure as
outlined in this manual before the water is consumed. For Microlene systems, even
though they have a visual and audible warning built into the controller, a green
LED or status screen does not necessarily indicate that the water coming from
this system is in fact potable (safe to drink). These systems do not measure the
levelofdisinfection;theysimplymeasurethe“on-off”statusofthelamp.Please
have your water checked for microbiological contaminants on a regular basis.
IMPORTANT: Installation of a backow valve should be in compliance with
all local water authority regulations and in accordance with AS/NZS 3500.1.2
and complying with AS/NZS 2845.1.

14
MCS Controllers
Simplistic in operation, these systems feature a tri-colour LED that
indicating system status and a 4-digit display to indicate lamp life
remaining. Pressing the button will change the display to indicate total
running time. When the UV lamp is on and within its operating age,
the LED will be green. When the UV lamp is not on or the lamp life
hasexpired,theLEDwillbeilluminatedredandanaudiblebuzzerwill
sound. To remedy this condition, the UV lamp must be replaced with
a new genuine Microlene UV lamp.
MCXS Controllers
A full colour LCD screen provides the user with a detailed description
of the system’s performance in addition to providing any applicable
fault messages and system diagnostics. The controller can be used as
both a non-monitored and UV monitored system. If a true UV monitor
isrequired,simplyaddtheoptionalUVsensormoduletothe“innite
expandabilityport”locatedontherightsideofthecontroller.Simply
plug in an optional UV sensor module into the expandability port of
a Microlene controller and the system will now monitor the UV intensity
of the system!
MCXS Power-up Sequence
On start up, the controller will run through a diagnostic start-up and the sequence will
be displayed as follows on the colour LCD:
Next,thecontrollerchecksforandinitializesanyoptionalmodulesthatmaybe
attached to the system.
UV Sensor
Solenoid
Module Check
Module Check
OR
OR

15
Analmodulescreenisdisplayedshowingwhichspecicmoduleswereinitialised.
The controller then displays the lamp optimisation screen for 60 seconds to allow
thelamptoreachitsoptimumoutput.Finally,anal“start-upcomplete”screenis
displayed.Thesystemwillnowbereadytodisinfectwaterow.
all detected modules lamp reaching max output successful start-up
MCXS Operational Screens
On systems without the UV monitor, the default screen shows the Microlene Home
Screen. At any point during operation the user is able to scroll through the Microlene
Home Screen, Lamp life remaining, QR Code, Contact Info and Maintenance
Parts screens by pressing the button located on the front of the controller.
4-20 mA
Remote Alarm
Module Check
Module Check
OR
OR

16
On systems with the UV monitor, the system will display the same screens as on the
Microlene MCXS controller except the UV Intensity replaces the home screen. The
UV Intensity screen displays the level of UV light detected by the sensor. UV intensity
canbeaffectedbypoorwaterquality,scalingonthequartzsleeveand/orsensor,
lamp failure or lamp expiring. The following screens show the UV Intensity dropping.
Below 56%, the numbers and warning sign turn red and an audible chirp is given
by the ballast every 15 seconds. Below 51%, the screen is solid red and a constant
audible alarm is given. This alternates with a screen indicating “water may be unsafe
forconsumption”.Withthesolenoidmodule,thecontrollerde-activatesthesolenoid
valve,shuttingoffallwaterow.
audible chirp every
15 seconds
audible chirp every
15 seconds
constant audible
alarm
cycles with red low
uv screen
Lamp Countdown Sequence
The system counts down the number of days until a lamp change is required.
MCXS System
(MCXS-Cont Controller)
MCS System
(MCS-CONT controller)
At thirty days remaining, the LED or display screen will change to a yellow caution
indicator. At seven days remaining, the system will additionally repeat an audible
chirp.Pastthezerodaythreshold,theLEDordisplayscreenchangestosolidred
with a continuous alarm sound.
MCXS System

17
MCS System
At any point during this sequence, the audible chirp or alarm can be deferred for
sevendaysbyholdingthecontrollerbuttondownforaperiodofveseconds.
The number of deferrals used will be displayed as below. Once the deferral expires,
the alarm will sound once again. The deferral can be repeated up to three times.
PLEASE NOTE: At any point after lamp expiration, the water may be unsafe for
consumption and should not be consumed without another form of disinfection.
MCXS System MCS System
System Service Suggested
MCXS controllers will display the System Service Suggested Screen
every 6 months to remind consumers to maintain both their UV and
otherpreltration.Thiswillserveasapromptonlyandwillnotput
the system into alarm. To clear this condition simply press the button
located below the screen.
Lamp Replacement (MCS systems)
After the lamp is expired, it must be replaced with the same part number as indicated
by the label on the chamber. Begin replacing the lamp by unplugging the power for the
controller, then refer to Installation, starting with step 11 (page 11) for instructions on
installingthenewlamp.Toresetthetimerinthecontroller,rmlyholddownthebutton
onthecontrollerfor10seconds.Thecontrollerwillread“rSt3”,“rSt2”,“rSt1”andthen
beep. The button can now be released, the lamp countdown timer has been reset.
The lamp key that comes with the replacement lamp will not be required on the MCS
system and can be discarded.
Lamp Replacement (MCXS systems)
After the lamp is expired, it must be replaced with the same part number as
indicated on the Maintenance Parts screen or on the label on the chamber. With
the system powered down, remove and discard the lamp key from the controller.
The replacement lamp is packaged with a lamp key on the connector at the end
of the lamp. Remove the key from the lamp and place it in the controller. Refer to
Installation, starting with step 11 (page 11) for instructions on installing the new lamp.
QR Codes
(Only on MCXS controllers MCXS-CONT) A QR code (Quick
Responsecode)isamatrixbarcoderstdesignedfortheautomotive
industry. Microlene uses the QR code to store a link to our website.
Users with a camera phone equipped with the correct reader
application can scan the image of the QR code and over a wireless
network connect to our web page in the phone’s browser.

18
System Troubleshooting
Hard Alarms: The following give a constant audible alarm. If present, the solenoid
valve is closed, and the 4-20, remote alarm and WiFi modules transmit the alarm.
System Display Problem Resolution
The system has detected a
problem with the lamp.
Reset lamp protection
circuit – unplug unit for
10 seconds. Replace
the lamp with the part as
indicated on the silver label
on the chamber or on the
Maintenance parts screen.
Although the lamp is
powered and visibly
illuminated, due to the
lamp’s age its UV output
isnolongersufcientfor
proper disinfection.
Replace the lamp with the
part as indicated on the
silver label on the chamber
or on the Maintenance
parts screen.
Low UV Intensity.
Remove and clean the
quartzsleeveandsensor.
Check water quality meets
requirements on page
5andaddltrationas
required. Replace lamp.
Wrong lamp or sensor
installed.
Replace component with
proper model as indicated.
The UV sensor is no longer
communicating with the
system.
Ensure all modules are
connected properly to the
system and to each other.
Modules can be tested
individually by plugging in
one at a time and cycling
power to the system.
Replace any module that is
not detected when plugged
directly into the controller.
A bad connection has been
detected in the IEP port.
Missing or incorrect
lamp key.
Ensure the lamp key
(packed with the lamp, on
the connector) is installed.
Unplug and reinstall the
key. Ensure the key part
number matches Lamp on
Maintenance Parts screen.

19
Soft Alarms: The following remaining errors give a 15 second audible chirp only.
System Display Problem Resolution
The module indicated is no
longer communicating with
the system.
Ensure all modules are
connected properly to the
system and to each other.
Modules can be tested
individually by plugging in
one at a time and cycling
power to the system.
Replace any module that is
not detected when plugged
directly into the controller.
1.Turbulentowispresent.
2. Air bubbles or solid
particles in the
Flowmeter body/pipe.
3. Internal damage caused
by plugging an AC/DC
wall adapter. that is rated
more than +5VDC or
dropping the device.
1. Make sure there is
proper length of straight
piping on the inlet side
of the Flowmeter. As well
thedirectionofowisin
the correct direction.
2. Verify installation is
correct, remove any
air bubbles from water
supply,addlteringto
reduce solid particles
from entering Flowmeter.
3. Replace Flowmeter.
Warning: After any hard alarm, the home or facility should be disinfected. Follow the
stepsunderthe“SystemDisinfection”heading.
Boil Water Advisory: If any failure occurs on a Microlene UV system, the water must
not be used for human consumption until the system is returned to a safe operational
mode. If the water is used for human consumption during this period, the water must
be boiled (minimum 20 minutes at a full boil) prior to consumption.
Temperature Management Devices
Your Microlene system is designed to run continuously to ensure optimal disinfection.
However, during periods when no water is drawn through the system, the energy
from the disinfection process can cause the temperature of the water inside the
chambertorise.Inextremesituationselevatedwatertemperatureortheuctuation
in temperature can lower the output of the UV lamp. In these cases, or if the elevated
water temperature is a nuisance, Microlene recommends the following form of
temperature management device.
Temperature Relief Valve (TRV)
On reaching a higher temperature, the TRV is designed to drain a
small amount of water to allow fresh, cooler water to enter the system.
The TRV works without power and comes complete with
10’ of drain line. The TRV should be used in standard installs where
the ambient temperature regularly exceeds 35 degrees C ambient
temperature. Order PN DM130033for1”ports.

20
Expansion Modules
MicroleneMCXScontrollersincorporatean“InniteExpandabilityPort”(IEP)which
allows for expansion to the UV sensor and all other modules. Each module (including
the sensor) comes with both a male and female connection. Connect any device to
the controller and all subsequent devices are then connected into the female end of
lastdeviceaddedina“daisychain”conguration.
The following optional expansion modules are available for use on Microlene UV
controllers. Contact your authorised distributor for purchasing information.
REMOTE ALARM CONNECTION MODULE: Allows
foraconnectiontoaremotedevicesuchasabuzzer,
light, alarm system, PLC, etc., via a pair of contacts.
In normal operation the OK and COM contacts will be
connected, and in a fault condition (Low UV, Lamp
fail, Power Fail), the Fault and COM contacts will be
connected. Maximum Contact Rating is 30V / 1A (use
16-22 AWG). Order PN DMMOD-RAM.
SOLENOID CONNECTION MODULE: Connects a
NORMALLY CLOSED line voltage solenoid valve
to the controller. On a non-monitored system, the
solenoid will only close on a lamp failure error. On a
monitored system, the solenoid is closed when the
UV level drops below 50%. Also note that in cases
where emergency use of untreated water is required,
the controller can be placed into a manual override
modeallowingfortheowofwaterinanalarm
condition. Maximum contact rating is 240VAC (50-
60Hz)/30VDC/2A.OrderPNDMMOD-SOL1.
4-20 mA MODULE: Outputs a 4-20mA signal of the
UV output to a remote device such as a data logger
or computer. Order PN DMMOD-420.