Comdronic AC6 User manual
www.comdronic.co.uk
AC6OperatingInstructions
Contents
HealthandSafety1
StatementofConformity1
MeasurementRange&Accuracy1
ContactUs1
DescriptionofAC62
ConnectionProcedure3
DisconnectionProcedure3
MenuMap4
On‐ScreenMessages/Warnings5
CommissioningMenu8
PreferencesMenu9
DisplayMenu11
SystemSetupMenu14
Appendices
Glycol/WaterSpecificGravityChart A1
RecommendedUserMaintenanceProcedures A2
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HealthandSafety
Comdronic Ltd takes every reasonableprecaution to ensure that AC6Electronic Commissioning Meters are
designed,constructed,calibratedandtestedforsafeandtrouble‐freeoperationwhenusedinaccordancewith
theseoperatinginstructions.
It is the user’s responsibility to be aware of the general hazards associated with the systems being
commissioned(e.g.highpressures;high/lowtemperatures;thepresenceofflushing/cleaning/antifreeze
agents; etc.) and to use appropriate personal protective equipment / clothing for the hazards potentially
present.
StatementofConformity
This is to certify that the Comdronic AC6 Electronic Commissioning Meter is manufactured in the UK and
conformstothepublishedspecification.ItisbothCE‐marked&UKCA‐marked,inaccordancewiththerelevant
EU/UKlegislation.
MeasurementRange&Accuracy
Model: AC6‐SP+
(STANDARD‐PRESSURE)
AC6‐HP+
(HIGH‐PRESSURE)
Accuracy
(%ofreading):
+/‐1%ofreadingor+/‐0.10kPa
(whicheverisgreater)
+/‐1%ofreadingor+/‐0.20kPa
(whicheverisgreater)
MaxAllowable
StaticPressure: 10bar 20bar
Measurement
Range: 0.5kPato250kPa 1.0kPato800kPa
Factory calibration is carried out, in controlled conditions, using reference equipment which has been
independentlycalibratedtoUKASstandards.
Generally,itisrecommendedthatAC6handsetsareservicedandcalibratedannually–please‘ContactUs’for
further information. However, this is not a fixed period and shorter service intervals may be necessary for
extremelyhigh‐usemetersorformeterswhichare regularlyusedonverydirtysystemsoronsystems that
containhighconcentrationsofcleaningagents/treatments.
Between services, there are some simple user‐maintenance procedures which can be performed to help
prolongtheaccuracyandperformanceoftheAC6–pleaserefertoAppendixIIforfurtherinformation.
ContactUs
Forallsales,technicalortroubleshootingenquiries:
Tel: +44(0)1473715589
Address: Unit7AlphaTerrace,WestRoad,Ipswich,Suffolk,IP39FD,UK
1
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DescriptionofAC6
PressANYbuttontoswitchtheAC6‘ON’.
MENU
?ZERO
Comdronic
- - + +
ConnecttheBLUE
connectiontube
tothisconnector.
Securingring.Usethe
lanyardsuppliedtosuspend
theAC6fromadjacent
pipework(orsimilar)while
takingreadings.
Presstosetazero
datumbeforetakinga
measurement(see
opposite).
Presstoentermenu
screens.
Usethe▲ ► ▼ ◄buttons
formenunavigationandto
enternumericaldata.
Presstocyclethrough
availabledisplayscreens.
Alsousetoacceptmenu
selectionsandscreen
entries.
ConnecttheRED
connectiontube
tothisconnector.
Internalstrainersprotectthe
sensor‐unitfromsmalldirt
particles.Theseareuser
serviceableparts.
Note:blockedstrainerswillslow
performanceandreduce
accuracy.
Equalisingvalve.
Presstocancelanentryorto
returntoapreviousscreen.
AlsousetoswitchtheAC6 ‘OFF’.
2
9VBattery
1xAlkaline9VPP3battery.
Batteryaccessatrear.
Typicaleffectiveoperating
time=upto20hours.
Key
Throughouttheseinstructions,thereare
twoabbreviationsusedfor‘differential
pressure’asfollows:
Δpisusedinthebodytext.
DPisusedinthescreenimages.
Presstoaccessthehandset’s
on‐boardvalvedatabase.
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TheAC6handsetissuppliedinalightweightcarrycasewiththefollowingaccessories:
Aremovablerubberprotector.
Apairofconnectiontubes,completewithmanually‐operatedisolationvalves.
Apairofangle‐patternBinder‐styleconnectionadaptorswith3.3mm/2.8mmdiameterneedles.
Apairofangle‐patternBinder‐styleconnectionadaptorswith2.0mmdiameterneedles.
Asetofhexkeys(3mm,4mm&5mm)andascrewdriver.
Alanyardtosuspendthehandsetfrompipeworkwhilstinuse.
Astrainermaintenancekit.
Asparebattery.
OperatingInstructions,aQuick‐StartGuideandaFactoryCalibrationCertificate.
ConnectionProcedure
Note:eachconnectiontubeisfittedwithanisolatingvalveanditisamatterofuser‐preferencewhether
thetubesareusedwiththeisolatingvalvesadjacenttothe
AC6
or,alternatively,adjacenttothesubject
measuringvalve/device.
1.
Selectthecorrectconnectionadaptorsforthevalve/devicebeingmeasuredandattachthemto
theconnectiontubes.
2.
Ensurethatbothisolatingvalvesontheconnectiontubesareinthe
CLOSED
position.
3. AttachtheconnectionadaptorontheREDconnectiontubetothehigh‐pressure(upstream)testpoint
onthesubjectmeasuringvalve/device.
4. AttachtheconnectionadaptorontheBLUEconnectiontubetothelow‐pressure(downstream)test
pointonthesubjectmeasuringvalve/device.
5. EnsurethattheequalisingvalveontheAC6isOPEN.
6. AttachthefreeendsoftheREDandBLUEconnectiontubestothecolour‐codedconnectionpointson
theAC6.
7. OPENtheisolatingvalvesontheconnectiontubestoallowthelinefluidtopurgeanyairfrominside
thetubes.*
8. CLOSEtheisolatingvalvesontheconnectiontubes.
9. FindasafeandstaticpositionfortheAC6.**
10. SwitchtheAC6‘ON’andpresstheZERObuttontosetthedatumatzero.***
11. OPENtheisolatingvalvesontheconnectiontubesandCLOSEtheequalisingvalveontheAC6.
12. TheAC6willnowbereadingΔp.
*
Ifthe
Δp
acrossthevalve/deviceislow,thepurgingprocesswillbeslowduetotheinternalresistance
ofthe
AC6
.
**
The
AC6
isverysensitiveandreadingswillbeaffectedifthepositionofthehandsetisadjustedaftera
datumhasbeenset.Alanyardisprovidedandcanbeusedtosuspendthe
AC6
fromadjacentpipework,
asappropriate.
***IftheAC6isbeingsubjectedtoanextremechangeoftemperatureatthispoint,thedatummaydriftfrom
zero as the internal temperature of the meter changes and, in these circumstances, it will be necessary to
repeatthisstepuntiltheinternaltemperaturehasstabilisedandazerodatumismaintained.
DisconnectionProcedure
1. OPENtheequalisingvalveontheAC6.
2. CLOSEbothisolatingvalvesontheconnectiontubes.
3. DisconnectthetubesfromboththeAC6andthevalve/device.
3
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MenuMap
TheAC6hasfourmenusforeaseofuse:
Commissioning
Menu
►Preferences
Menu
►Display
Menu
►SystemSetup
Menu
◄◄◄
SelectAValve
Show/Hide
Makers DPandFlow Auto‐OffTimer
▼▲▼▲▼▲▼▲
ValveSetting
ShowAll
Makers Advanced Damping
▼▲▼▲▼▲ ▼▲
DesignFlow DPUnits DPOnly Language
▼▲▼▲▼▲ ▼▲
TargetFlow% FlowUnits
Velocity
(Flushing) FactoryReset
▼▲▼▲▼▲
SpecificGravity SizeUnits
ChangePIN
▼▲▼▲
ChangeKvs
“About”
Note:menuoptionsshowninredmayormaynotappearinthemenulists,dependingontheselectedvalve
andtheprecisesetupofthehandsetbeingused,asfollows:
ValveSettingwillonlyshowifanadjustablevalvehasbeenselected.
DesignFlow&TargetFlow%willonlyshowforFixedOrifice‐andVariableOrificeBalancingValves.
ChangeKvswillonlyshowifaFixedOrificeBalancingValvehasbeenselected.
ChangePIN will notshowifPINfunctionality has beendisabledwithin the ‘Factory’ settingsofthe
handset(“ContactUs”formoreinformation).
4
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On‐ScreenMessages/Warnings
MAX
Δp
ZERO SG TEMPHIGH
TheZERObuttonwillneedtobe
pressedtosetadatumbeforea
readingcanbetaken.
[Displayedtop‐leftofscreen.]
SpecificGravityhasbeensettoa
valueotherthan1.0,andreadings
arebeingauto‐correctedforSG.
[Displayedtop‐leftofscreen.]
Temperatureofthefluidinside
thehandset>50°C,whichistoo
highforreadingstobe
temperature‐compensated.
[Displayedtop‐leftofscreen.]
Remainingbatterypowerhas
droppedbelow7.0volts.
[Displayedtop‐leftofscreen.]
Remainingbatterypowerhas
droppedbelow6.2volts.
[Displayedfull‐screen.]
Action:FITANEWBATTERY.
Remainingbatterypowerhas
droppedbelow6.6volts.
[Displayedtop‐leftofscreen.]
9v
PP3
IMPORTANT
OPENEqualisingValve
BEFOREConnecting/
DisconnectingTubes!
OVENTROP
HydroconVTZ
15mm
5.30
Detailsoftheselectedvalve
–
plus
itssetting,ifapplicable–are
displayedateveryturnON.
[Displayedfull‐screen.]
Crucialfortheprotectionofthe
pressure‐sensor,andisdisplayed
ateveryturnON&turnOFF.
[Displayedfull‐screen.]
Δ
p
DP<0.60kPaand,assuch,isit
toolowforFlowtobederived.
[Displayedtop‐rightofscreen.]
Δ
p
0.60 <DP<0.95kPaand,although
thismightbealittlelowerthan
ideal,Flowisnowbeingderived
anddisplayed.
Δ
p
Iftheselectedvalveisline‐size,
pipe‐lossesarebeingassessedas
beingextremelyhigh.
[Displayedtop‐rightofscreen.]
MeasuredDP>Range‐of‐
Operation.
[Displayedfull‐screen.]
Action:Proceedwithcaution.
5
SensorSignalError.
[Displayedfull‐screen.]
Action:Ifproblempersists,
‘ContactUs’forfurtheradvice.
DPisunexpectedlyNEGATIVE.
[Displayedtop‐leftofscreen.]
Action:DOUBLE‐CHECK
INSTALLATION/CONNECTIONS.
‐
Δ
p
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CommissioningMenu
TheCommissioningMenuisconcernedwiththevariousselections/parametersthatausermaywishtoenter
dependingonthevalve/devicebeingmeasuredandthecommissioningtechniquesbeingutilised.
TIP:Whistinanyscreen,press?onthekeypadasashortcuttothismenuoption.
The performance characteristics of over 7,000 valves – from 80+manufacturers/brands–arepre‐
programmed into the AC6 and this data is updated as a matter of course whenever an AC6 is serviced by
Comdronic.
Make selections for all four parameters (i.e. Maker, Type, Model&Size) before pressing the button to
acceptthem.Or,pressthebuttontoexitandretainthepreviousselection.
Note: w
hilst every effort is made to ensure that
storedvalvedataiscorrect,valvemanufacturers
invariablyreservetherightto
modifytheirproducts,withoutnotice,andsoComdroniccannotbeheld
responsibleforanyinaccuraciesor
omissions
.
P
TIP:WhilstinanyDisplayscreen,press▲onthekeypadasashortcuttothismenuoption.
Whenvariableorificevalvesoradjustableautomaticbalancingvalvesarebeingmeasured,thehandwheel
position / cartridge setting must be entered so that the correctflowcharacteristicsareusedforthe
derivationofflow.
CRANE
FixedOrifice
D902
15mm
Maker/Manufacturer/
Brand.
ValveTypee.g.Fixed,
Variable,PICV,etc.
ValveModel/Fig.No.
ValveSize.
Use▲&▼toselecta
parameter.
Use◄&►toscroll
throughtheavailable
optionsforeachparameter.
Currentsetting.
2.4
Use▲toincreaseavalue.
Use▼todecreaseavalue.
{▼atzeroforadecimal
point.}
Use►toaddadigit.
Presstoacceptthenew
value.
Maximum&Minimum
usablesettingsforthe
selectedvalve.
Use◄toremoveadigit.
PressBACKARROWtoexit
andretainthecurrent
setting.
6
MAX8
MIN2
=8
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TheDesign Flowfortheselected valvecan beentered /edited inthisscreen. Whena valueis entered,the
derivedflowwillbecalculatedasapercentageoftheDesignFlowandthiswillbedisplayedontheAdvanced
DisplayintheDesignFlowbox.
TheTargetFlow%fortheselectedvalvecanbeentered/editedinthisscreen.Whenavalueisentered,itwill
bedisplayedon theAdvancedDisplayinthe TargetFlowbox. TargetFlowmustbeenteredasapercentage
andisgenerallyrequiredwhencarryingout‘proportional’balancing.Typically,thevalueusedwillbethesame
asthecalculatedDesignFlowpercentageontheindexcircuit.Balancingto100%targetonsubsequentvalves
willensurethatvalvesadjacenttotheindexvalveare‘balanced’.
7
9.8
EnterDesignFlow
=9.5l/s
105
EnterTargetFlow%
=100%
Use◄toremoveadigit.
PressBACKARROWtoexit
andretainthecurrent
setting.
Use▲toincreaseavalue.
Use▼todecreaseavalue.
{▼atzeroforadecimal
point.}
Use►toaddadigit.
Presstoacceptthenew
value.
Currentsetting.
Use▲toincreaseavalue.
Use▼todecreaseavalue.
{▼atzeroforadecimal
point.}
Use►toaddadigit.
Presstoacceptthenew
value.
Use◄toremoveadigit.
PressBACKARROWtoexit
andretainthecurrent
setting.
Currentsetting.
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TIP:SGcanbeadjustedwithintherange0.9<=SG<=1.2.
Thismenu optionallowstheusertoenterthe SpecificGravity(SG) oftheline fluid.Typically,this wouldbe
necessarywhenglycol(orsimilar)ispresentinthesystem.PleaserefertoAppendixIforfurtherinformation.
Note:whileSGissettoavalueotherthan1.0,“SG”willshowatthetopofthechosendisplayscreenasa
remindertotheuserthatreadingsarebeingsubjectedtoacorrection.Itisstronglyrecommendedthat
usersregularlycheckthatthesetvalueforSGisappropriateforthesystembeingcommissioned.
Ifthevalve/deviceisnotlistedintheAC6’sdatabase,thismenuoptionenablestheusertomanuallyentera
KvsvaluesothataderivedflowcanstillbecalculatedbytheAC6.
8
1.08
EnterSG
=1
0.6
EnterNewKvs
=0.5Kvs
Use◄toremoveadigit.
PressBACKARROWtoexit
andretainthecurrent
setting.
Use▲toincreaseavalue.
Use▼todecreaseavalue.
{▼atzeroforadecimal
point.}
Use►toaddadigit.
Presstoacceptthenew
value.
Currentsetting.
Use▲toincreaseavalue.
Use▼todecreaseavalue.
{▼atzeroforadecimal
point.}
Use►toaddadigit.
Presstoacceptthenew
value.
Use◄toremoveadigit.
PressBACKARROWtoexit
andretainthecurrent
setting. Currentsetting.
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PreferencesMenu
TIP:NoMakerswillbeDELETEDviathisoperation!
TIP:Requiresaminimumbatteryvoltageof7voltstorun.
9
ALBION
Use◄►toscrollthrough
theavailableValveMakers.
Asperindividual
preference,press▼to
removetheshownMaker
fromthe‘live’list.
Asshown,Maker=ALBION
hasbeenremovedfromthe
‘live’list.
ALBION
Press▲toreversethe
aboveoperationandputthe
shownMakerbackintothe
‘live’list.
ShowALLMakers
PressBACKARROWtoexit
andabandontheoperation.
Presstoproceedandput
ALLMakersbackintothe
‘live’list.
Asshown,Maker=ALBION
willappearinthe‘live’list.
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Default=kPa
AvailableoptionsarekPa,psi,bar,cmH2O,
IWGA(incheswatergauge),FtHD(feethead)orPa.
Default=l/s
Availableoptionsarel/s,l/m,l/h,USGPM,UKGPM,m3/h,m3/morm3/s.
Default=mm
Thismenuoptionallowstheusertospecifythepreferredunits(millimetres/inches)forviewing/selectingvalve
sizes.
10
kPa
1‐
2‐
3‐
4‐
5‐
◄mm►
mm
l/s
PressBACKARROWtoexit
andabandontheoperation.
PressBACKARROWtoexit
andabandontheoperation.
Useeitherofthe◄ or►
buttonstotogglebetween
millimetres&inches.
PressBACKARROWtoexit
andabandontheoperation.
Use►toscrollthroughthe
availableunitsforDP.
Presstoacceptthenew
DPUnit.
Use►toscrollthroughthe
availableunitsforFlow.
Presstoacceptthenew
FlowUnit.
Presstoacceptthenew
SizeUnit.
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DisplayMenu
TherearefourdifferentdisplayformatsavailablefortheAC6.Themostappropriateformatwilldependonthe
typeofvalve/devicebeingmeasuredandthecommissioningmethodbeingapplied.
TheDPAndFlowDisplayissuitableformostgeneralcommissioningpurposes.
Anexampleofdisplayeddatawhenafixedorificevalvehasbeenselectedisasfollows:
Anexampleofdisplayeddatawhenanautomaticbalancingvalvehasbeenselectedisasfollows:
*IfthemeasuredΔpexceedstheminimumrequiredfortheselectedvalve(attheselectedsetting)todeliver
thepre‐determinedflow,theflowstatusmessagewillbeΔpOK.However,iftherequiredΔpisnotpresent
theflowstatusmessagewillbeΔp.IntheunlikelyeventthatthemeasuredΔpexceedstherecommended
maximumforthevalve,theflowstatusmessagewillbeΔp.
11
Schematicofthe
selectedvalve.
Cv&Kvsofthe
selectedvalve.
MeasuredΔp.
DerivedFlow.Calculatedby
theAC6usingthemeasured
Δ
pandtheKvs.
Detailsoftheselectedvalve.
5.30
CRANED93115mm
kPa
l
/
s
0.141
2.54Cv
2.20Kvs
Currentcartridgesetting.
Press▲tochangevalve
setting.
Flowstatusmessage.*
16.19
FLOWCONGreenGreen.0
kPa
l
/
s
0.160
Δ
p
l
/
s
0.160
5.00
Pre‐determinedflowfor
theselectedvalveatthe
selectedsetting.
MeasuredΔp.
DerivedFlow.
Detailsoftheselectedvalve.
OK
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The Advanced Display can show more complex commissioning data and it may be preferred to the DP And
FlowDisplayifautomaticbalancingvalvesarebeingmeasuredorifasystemofproportionalbalancingisbeing
adopted.
Anexampleofdisplayeddatawhenavariableorificevalvehasbeenselectedisasfollows:
**Theseareiterativeprocessesduetotheunknownvalveauthorityinthecircuitandso2‐3attemptsmaybe
requiredtoachievethedesiredreading.Pleasealsonotethatinconjunctionwithpressingthe◄ ►buttonson
theAC6,thephysicalhandwheelsettingofthevalvewillalsoneedtobechangedtomatchthenewvalue.
Anexampleofdisplayeddatawhenanadjustableautomaticbalancingvalvehasbeenselectedisasfollows:
*IfthemeasuredΔpexceedstheminimumrequiredfortheselectedvalve(attheselectedsetting)todeliver
thepre‐determinedflow,theflowstatusmessagewillbeΔpOK.However,iftherequiredΔpisnotpresent
theflowstatusmessagewillbeΔp.IntheunlikelyeventthatthemeasuredΔpexceedstherecommended
maximumforthevalve,theflowstatusmessagewillbeΔp.
12
indicatesΔpmustbe
increased{by6.21kPa}to
achievethepre‐determined
flow{0.160l/s}.
[wouldindicateΔpis
unnecessarilyhigh.]
Chevronsintheinletpipe
indicateΔp>0.
Δprequiredtoachieve
pre‐determinedflow.
MeasuredΔp.
Approx.
actualflow.
Pre‐determinedflowfor
theselectedvalveatthe
selectedsetting.
Flowstatusmessage.*
Chevronswillappearinthe
outletpipeonlyoncethe
pre‐determinedflowhas
beenachieved.
Currentvalvesetting.
Press▲toedit.
FLOWCON Green Green.0
Δ
p
0.160 l
/
s
5.00
9.79 kPa
0.125 l
/
s
16.00
6.21
Currenthandwheelsetting.
Press▲toMANUALLY
changevalvesetting.
Kvsoftheselectedvalveat
thecurrentsetting.
The“TARGET”boxcontains:
TheDerivedFlowasa%oftheTargetFlow%.IfnoTarget
Flow%hasbeenentered,“‐‐‐“willbedisplayed.
ThePredictivehandwheelsettingtoachievetheTargetFlow
%.Press►toAUTOMATICALLYchangethe‘Current
HandwheelSetting’beingusedbytheAC6tothisvalue.**
MeasuredΔp.
DerivedFlow.
Detailsoftheselectedvalve.
9.67
CRANEDM93165mm
kPa
l
/
s
5.080
DESIGN
58.80 Kvs
6.10
91%
96% TARGET
6.24 6.41
The“DESIGN”boxcontains:
TheDerivedFlowasa%oftheDesignFlow.IfnoDesign
Flowhasbeenentered,“‐‐‐“willbedisplayed.
ThepredictedhandwheelsettingtoachievetheDesign
Flow.Press◄toAUTOMATICALLYchangethe‘Current
HandwheelSetting’beingusedbytheAC6tothisvalue.**
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TheDPOnlyDisplayisthe simplestoptionavailableandmaybepreferredwhentheAC6isbeing usedasa
simplemanometer.
The Velocity Display would normally only be preferred when fluid velocities are being measured for the
purposesofsystemflushing.
13
|KPa
4.27 MeasuredΔp.
Unitsofmeasure.
MeasuredΔp.
DerivedPipeVelocity
(displayedinmetric&
imperial).
Detailsoftheselectedvalve.
0.083
ALBION ART22 15mmL
m
/
s
ft
/
s
0.27
V
1.03 kPa
16.10mm
PipeIDcurrentlybeingused
toderivepipevelocity.
Ifnecessary,press▲ to
changethepipeID.
21.7
=16.1mm
Use▲toincreaseavalue.
Use▼todecreaseavalue.
{▼atzeroforadecimal
point.}
Use►toaddadigit.
Presstoacceptthenew
value.
Use◄toremoveadigit.
PressBACKARROWtoexit
andretainthecurrent
setting.
Currentsetting.
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SystemSetupMenu
Default=5min
TheAuto‐OffTimersetstheperiodoftimeafterwhichtheAC6willturn‘OFF’afteraperiodofinactivity.
Ashorttimewillpreservebatterylife.
Default=MIN
ThisscreenallowstheusertoadjusttheapparentsensitivityoftheAC6byincreasingthetimedelaybetween
eachscreenupdateandextendingtheperiodoftimeoverwhichreadingsareaveraged.Damping=MAXmay
beadvisableonanunstablesysteminordertogiveasteadierreading.
Default=English
AvailableoptionsareEnglish,French,ItalianorSpanish.
14
Use▲▼ totoggle
betweenthesettings.
30min
5min
MAX
MIN
AdjustDamping
SelectAuto‐OffTime
Use▲▼ toscrollthrough
theavailablelanguages.
English
SelectLanguage
Presstoacceptthenew
setting.
Presstoacceptthenew
setting.
Use▲▼ totoggle
betweenthesettings.
Presstoacceptthenew
setting.
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Auto‐OFF5min DesignFlow0 TargetFlow%0 SpecificGravity1
DPUnitskPa FlowUnitsl/s SizeUnitsmm
Kvs&PipeSizeDefaultforSelectedValve ValveSetting‘max’forSelectedValve
TIP:Tospecialrequest,allPINfunctionscanbecompletelyremovedfromahandset–please“ContactUs”
formoreinformation.
Asthedefault,thePINCodeisfactory‐setto“0”(zero),andwhenitissetto“0”itwillneverbeaskedfor.But,
ifaPINotherthan“0”issetitwillbeaskedforateverybatterychange.
Anynumericalvalue(includingdecimalplaces)isallowable.Asanexample,proceedasfollowstochangethe
PINfrom“0”to“236.67”:
TIP:If,aftersettingyourownPIN,youdecidetoreverttothedefault,justresetitbackto“0”anditwill
ceasetobeaskedfor.
Presstoexitandretainall
currentsettings.
Presstoproceedand
restore‘factory’defaults.
RestoreDefaults
15
236.67
EnterNEWPIN
=*
Use▲toincreaseavalue.
Use▼todecreaseavalue.
{▼atzeroforadecimal
point.}
Use►toaddadigit.
Presstoacceptthenew
value.
Use◄toremoveadigit.
PressBACKARROWtoexit
andretainthecurrentPIN.
PIN=236.67
Presstoconfirmthenew
PIN.
PressBACKARROWtoexit
andabandontheoperation.
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The‘About’menuoptiongivestheuniqueserialnumberoftheAC6(pleasequotethisinanycorrespondence
withComdronic)plustheinstalledfirmwareversion.
WWW.COMDRONIC.CO.UK
SerialNumberofHandset.
FirmwareVersioninuse.
Pressure‐Sensor
Configuration.
ValveDatabaseRelease.
AC6‐1234
P4.00‐CB8B
SP+
81F/22‐18
16
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AppendixI
Glycol/WaterSpecificGravityChart
% Glycol Additive
Temperature
O
C
0
10
20
30
40
50
60
70
80
90
100
80
0.991
1.003
1.017
1.026
1.036
1.046
1.054
1.062
1.068
70
0.990
1.000
1.010
1.023
1.034
1.042
1.053
1.062
1.069
1.075
60
0.995
1.007
1.017
1.030
1.041
1.050
1.060
1.070
1.076
1.083
50
1.000
1.013
1.023
1.035
1.048
1.057
1.067
1.077
1.084
1.090
40
0.990
1.004
1.018
1.029
1.042
1.054
1.064
1.074
1.085
1.091
1.098
30
0.996
1.007
1.022
1.034
1.047
1.059
1.070
1.080
1.092
1.099
1.105
20
0.999
1.010
1.026
1.038
1.052
1.065
1.076
1.088
1.099
1.106
1.114
10
1.000
1.013
1.028
1.042
1.056
1.070
1.082
1.094
1.105
1.113
1.120
0
1.000
1.015
1.029
1.045
1.061
1.075
1.088
1.100
1.112
1.120
1.128
-10
1.048
1.065
1.079
1.092
1.107
1.118
1.127
1.135
-20
1.068
1.083
1.097
1.113
1.124
1.133
1.136
-30
1.087
1.100
1.118
1.128
1.137
1.137
-40
1.102
1.122
1.133
1.138
1.138
E&OE
A1
www.comdronic.co.uk
AppendixII
RecommendedUserMaintenanceProcedures
PressureSensorFlushing
ThepressuresensorwithintheAC6isprotectedfromthemajorityofsystem‐dirtbythepresenceofastrainer
ineachoftheRedandBlueconnectionportsonthetopoftheunit. These strainers have been carefully
selectedandwillpreventallbutthesmallestofdirtparticlesfromenteringthesensor‐unit.Theyarevitalfor
maintainingtheproperperformanceoftheAC6.
Overtime,however,theremaybeabuild‐upoftinydirtparticleswithinthesensor‐unitandifthisisallowed
tocontinuetheperformanceoftheAC6maybecomeaffectedintwoways:
A. Readingsmaybesignificantlylessthanthetruevalue,and/or
B. On‐screenreadingsmaychangeveryslowlywhenadjustmentsaremadetothebalancingvalve.
Regularlyperformingasimpleflushwillhelptoreduceanybuild‐upofdirtwithinthesensor‐unit:
1. EnsurethattheequalisingvalveontheAC6isfullyOPEN.
2. HoldtheAC6upsidedownandconnectacool,clean,watersupplytotheBlueconnectorandallow
thewatertoflowoutoftheRedconnector.Thisistheback‐flushandshouldalwaysbedonefirst.
3. Whilst keeping the AC6 upside down, disconnect the water supply from the Blue connector and
reattach it to the Red connector and allow water to flow out oftheBlueconnector.Thisisthe
forward‐flush.
Inadditiontoperformingsimpleflushes,iftheAC6isregularlyusedonextremelydirtysystemsitmayalsobe
necessarytoperiodicallyperformanadvancedflush.Anadvancedflushisthesamebasicprocessasasimple
flushbutitisperformedwiththestrainerstemporarilyremoved(seestrainerremovalinstructionsopposite).
Duringanadvancedflush,itisadvisabletocleanthestrainersinasoapysolutionandthenflushthemwitha
pressurised air / water source. However, if the strainers are inverypoorconditionitmaybenecessaryto
replacethemwithnew(sparepartordercode=HS‐STR‐P).
IfanAC6continuestoreadincorrectlyevenafteranadvancedflushandstrainerchange,please‘ContactUs’
forfurtheradvice.
HoseMaintenance
TheconnectiontubessuppliedwiththeAC6arefittedwithsnap‐connectorsonbothends.Overtime,these
snap‐connectorsmay become a bit stifftooperate assystemdirt accumulates in the ‘snapping’ mechanism
andcontinuedusemayresultindamagetotheAC6.Toavoidthis,theregularapplicationofasmallamountof
multi‐purposegreaseineachofthesnap‐connectorswillhelptokeepthemingoodworkingorder.
A2
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