Sargent EC328 User manual

EC328PowerControlSystem
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1KeyFeatures
·BatteryCharger/ PowerSupply–Incorporatesan aircooled 300 Watt multi-stage powerconverter
unitthat chargesthe batteriesand provides12VDCpower.
·Built-in dualSolarRegulator-Allowsthe direct connectionofa 20to 120Wsolarpanel
without the need foradditionalcomponents. The dualregulatorchargesboth the vehicleand
leisure batteriessimultaneously.
·EnhancedDigitalControlPanel-With scrolling menu system, batterycondition (voltage and
current),watertanklevels,tankand batterylevelwarningswith batteryprotect circuit, alarm
clockand programmable event timer.
2System Overview
The following diagramshowsthe typicalconfiguration ofthe EC328 system. The keycomponent is
the EC328 powersupplyunit (PSU),whichisthe hub ofthe systemand providesconnectivityto the
ancillarycomponentsand the EC328 digitalcontrolpanel.

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3PowerSupplyDetails
Forthe safe operationofall electricalequipment within yourLeisureVehicleitisimportant that you
read and fullyunderstand these instructions. If you are unsureofanypointplease contactyour
dealer/distributorforadvicebefore use.
The following diagramshowsthe EC328PSUlayout.
WARNING
Underheavyloadsthe EC328PSU case maybecome hot. ALWAYSensure the ventilation slotshave
a clearflow ofair. Do not place combustible materialsagainst / adjacent to the EC328PSU. The PSU
willshutdown ifoverheated and will restart automaticallywhen cool.
3.1Residual CurrentDevice &MiniatureCircuitBreakers
Residual Current
Device(RCD)
MiniatureCircuit
Breakers(MCB’s)
RCD
Test
button
The Residual Current Device(RCD) is basicallyprovided
toprotectthe userfromlethalelectricshock. The RCD will
turnoff (trip) ifthe current flowing inthe liveconductor
doesnotfullyreturndownthe neutralconductor, i.e. some
current ispassing through apersondowntoearthor
throughafaultyappliance.
Toensurethe RCD isworkingcorrectly, thetest button
should beoperatedeachtimethe vehicleisconnectedto
the mainssupply(seesection 5.1)
The MiniatureCircuit Breakers(MCB’s) operatein asimilar
waytotraditional fusesand areprovidedtoprotectthe
wiring installation fromoverloador short circuit. If an
overload occurstheMCB will switchoffthe supply. Ifthis
occursyou shouldinvestigatethe causeofthe fault before
switchingtheMCB back on.

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The following table showsthe rating and circuitallocation forthe three MCB’s
MCB Rating Wire Colour Description
1 10 Amps White 230vSockets
2 10 Amps White (Yellow forheater) Extra 230vSockets/ Heater
3 6 Amps Black(Blue forwaterheater) Fridge /WaterHeater/ 12vCharger
(internallyconnected)
3.2BatteryCharger
The EC500 systemincorporatesan intelligentthree-stage batterycharger/ powerconverter.
During stage 1 the batteryvoltage isincreased graduallywhile the current islimited to startthe
charging process and protect the battery. At stage 2 the voltage risesto 14.4Vtodeliverthe bulk
charge tothebattery.When thebatteryischarged, the voltage isdecreased at stage 3 to 13.6Vto
delivera float charge to maintainthe batteryinthe fullycharged state. The chargercan be left
switched on continuouslyasrequired.
The batterycharger/ powerconverteralsoprovidespowerto the leisure equipment when the mains
supplyisconnected. Thismodule suppliesDC totheleisure equipment up to amaximumof25 Amps
(300 Watts), therefore the available powerisdistributed between the leisureload and the battery,with
the leisure load taking priorityasperthe following example:
Leisureload Available powerforbattery charging
5A 20A
10A 15A
15A 10A
20A 5A
3.3SolarPanel Converter
The EC328PSUincorporatesa built-indualchannelSolarRegulatorthat allowsthe direct connection
ofa 20 to 120Wsolarpanelwithout the need foradditionalcomponents. The dualregulatorcharges
both the vehicle and leisurebatteriessimultaneouslyand connectsto the PSU viaa dedicated
connectoron the base ofthe unit (see section6.5forconnectordetails).
Aconnection harness isavailable fromyourdealerorthe Sargent web site.
3.4Fuses
WARNING
When replacing fusesalwaysreplace a fusewiththecorrect value. NEVER replace witha highervalue /
ratingasthiscould damage the wiring harness. Ifa replacement fuse ‘blows’ do not keep replacing the
fuse asyou could damage the wiring harness. Pleaseinvestigate the fault and contactyourdealer.
The following table showsthe fuse allocation forthe 12 fusesfitted to the EC328PSU.
Fuse Rating Fuse Colour Wire Colour Description
1 20 Amps Yellow Brown/ Blue LeisureBattery
2 20 Amps Yellow Brown/ Green VehicleBattery
3 5 Amps Tan Brown/Yellow Permanent Supply(Radio/ Fridge)
4 10 Amps Red Green / Blue WaterPump 1
5 10 Amps Red Green / White WaterPump 2
6 10 Amps Red Grey/ Red AuxiliarySupply(Awning / EntryLight)
7 15 Amps Blue Grey Front Lights

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8 15 Amps Blue Pink RearLights
9 10 Amps Red Yellow / White 12vSockets/ TVAmplifier/ Entertainment
10 10 Amps Red Black/ tracer Fans/ HeaterFans
11 5 Amps Tan Yellow / Green IgnitionsSupply(Heaters / Cooker)
12 10 Amps Red Purple Toilet Pump
The following table showsdetailsofthe fuse(s) located at the Leisure battery.
Battery1 20 Amps Yellow Brown/ Blue Fuse remotelylocated nearbattery
Battery2 20 Amps Yellow Brown/ Blue Fuse remotelylocated nearbattery2
(where fitted)
3.5Battery
A)Type / Selection
Foroptimumperformance and safetyitisessentialthat onlya proprietarybrand LEISUREbatteryis
used with a typicalcapacityof75 to 120Ah(Ampere / hours). AnormalcarbatteryisNOTsuitable.
Thisbatteryshouldalwaysbe connected when the systemisin use.
The PSUisconfigured to workwith standard lead acid leisure batteries, and in most casesisalso
compatiblewiththelatest rangeofAbsorbed Glass Matt (AGM)batteries. Beforefittingnon-standard
batteriespleasecheckthat the charging profile described in 3.2 issuitableforthe type ofbatteryby
referring to the batterydocumentation orbatterymanufacturer.
Some vehicleinstallationscan caterfortwoleisure batteriesconnected in parallel. In these casesit is
recommended that two identicalbatteriesare used.
The batteryfeed isfitted with an inline fuse between the batteryandtheelectricalharness, andis
usuallylocated immediatelyoutside the batterycompartment orwithin 500mmofthe battery. The
maximumrating ofthisfuse is20Aperbattery.Iftwo ormore batteriesare fitted the maximumtotal
fusing value must not exceed 40A.
B)Installation & Removal
Alwaysdisconnect the 230vmainssupplyandturn theEC328PSU chargerswitchto the OFF (0)
position before removing orinstallingthebattery.
When connecting the battery,ensure that the correct polarityisobserved (blackis negative[-] and red
ispositive [+])and that the terminalsare securelyfastened. Crocodile clipsmustnot be used.
WARNING
Explosive gasesmaybe present at the battery.Takecare to prevent flamesand sparks in thevicinity
ofthe batteryand do not smoke.
C)Operation / Servicing
Undernormalcircumstancesit shouldnot be necessaryto remove thebatteryotherthanforroutine
inspection ofthe terminalsand “toppingup”ofthe batteryfluidwhere applicable. Please see
instructionssupplied withthe battery.
Note: Do not overdischarge thebattery.One ofthe most common causesofbatteryfailureiswhen
the batteryisdischarged below therecommended levelofapproximately10v. Discharginga battery
belowthisfigure can causepermanent damage to one ormore ofthe cellswithin the battery.
To preventoverdischarge, the EC328 systemincorporatesa batteryprotect circuit that warnsand
then disconnectsthebatterieswhentheyfallbelow the followingconditions:

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Battery
Voltage
cut off Action aftercut off Notes
Vehicle 10.9v
Batteryselection is
changed fromVehicle
batterytoLeisure
battery. Ifthe leisure
batteryisbelow9v
then a furtherwarning
willoccur(see below).
Thiscut off levelisdesigned to protect the vehicle
batteryfromoverdischarge. The 10.9vlevel
ensuresthere issufficient powerin the batteryto
run thevehicleelectronics and startthe vehicle.
Thiscut off onlyappliestopowerdrawn fromthe
batterybythe leisure equipment; itwill not protect
the batteryif youleave thevehiclelightson.
Leisure 9v Poweristurned off
Thisisan emergencycutoff leveltoprotectthe
batteryfromsevere damage. You should not rely
on thiscut off levelduring normaloperation, but
manage yourpowerconsumption to a discharge
levelof10v.
Thiscut off onlyappliestopowerdrawn fromthe
batterybythe leisure equipment that iscontrolled
bythe controlpanelpowerswitch; itwillnotprotect
the batteryfromdischarge bythe radioorother
permanentlyconnectedequipment.
4Control Panel Details
4.1Layoutand Buttons
The following diagramshowsthe controlpanellayout and button functions.
Note: to remove the decorative bezel, pull down and lift forward asindicated bythe blue arrows.
Item Function Options/ Notes
PowerON/ OFF Use to turn the main leisurepoweron and
off.
The adjacent LEDisilluminated when
the powerisON.
BatterySELECT
Use to select the LeisureorVehiclebattery.
Press the button to toggle between the
leisure andvehiclebatteries. When a
batteryisselected thisbatterywillbe used
asthe powersource andwill alsobe
charged bythecharger.
The adjacent LEDisilluminated when
the VEHICLEbatteryisselected; by
defaultwhen the powerisinitiallyturned
on the Leisurebatteryisselected and is
indicated bythe batteryselect LEDoff.

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Item Function Options/ Notes
Pump ON/ OFF Use to turn thewaterpump(s) poweron and
off (see section 4.3)
The adjacent LEDisilluminated when
the pump powerisON.
AuxON / OFF
Use to turn the Auxiliarypoweron and off
(see manufacturers handbookfordetailof
what itemsare operated bythe auxiliary
function).
The adjacent LEDisilluminated when
the auxiliarypowerisON.
ScrollUP
Use to scrollthedisplayup (settingssection
ofthe menu)oradjust the selected setting
(see section 4.3)
ScrollDOWN ▼
Use to scrollthedisplaydown (readings
section ofthe menu)oradjust the selected
setting (see section 4.2)
Note: the menu screensoperate in a
continuousloop, thereforeyou can use
eithertheUPorDOWN buttonsto
move to anyscreen
Select ◄Use to select a menu itemwithin the
settingssection(see section 4.2&4.3)
Use to move tothenext setting,when
entering alarm/ event times
Note: the displaybacklight operated forapproximately6 secondsafteranykeypress.
4.2Menu Functions-Readingssection
Display Description Options/ Notes
EC328 v2.1H
12:00 23.9°C
Main ControlPaneldisplayshowing
modelnumber(EC328),software
version number(v1.3), specification
(H), current time (12:00)and
Internaltemperature (23.9°C)in
centigrade
The addition ofa asterisk(*)
in the top left ofthe display
indicatesthat the alarmisset
The addition ofa hash (#)in
the top right ofthe display
indicatesthat the event timer
isset
The addition oftheletters ‘AC’
in the centre ofthe display
indicatesthat the ACMains
supplyisswitched on
Leisure Battery
12.5v (Good)
▼
Voltage reading and battery
condition description fortheon-
boardleisure battery
See also3.7C
Less than10.9=(Poor)
10.9 to 11.8 =(Fair)
11.9 to 14.4 =(Good)
VehicleBattery
13.3v (Good)
▼
Voltage reading and battery
condition description forthevehicle
battery
See also3.7C
Less than10.9=(Poor)
10.9 to 11.8 =(Fair)
11.9 to 14.4 =(Good)
Mains Supply
ON
▼
Indication ofthe230vmainssupply. ON =mainssupplyon
OFF =mainssupplyoff
▼
Leisure Battery
=LeadAcid
Showsthe type ofbattery
configured withintheEC328PSU.
The leisurebatterytype can
be changedwithin the
EC328PSU to accommodate

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Display Description Options/ Notes
Gelbatteriesifrequired (see
section 3.7Afordetails)
FreshWater
25% Full
▼
Waterlevelin the freshwatertank
(5 measurement levels)
Ifthe waterpump powerswitch is
turned ONand thewaterlevel
dropsbelow 25%awarning beep
willbe heard and the LCD display
willflash. To cancelthewarning,
press the select (◄) button. The
warning willnot be repeated unless
the waterpump powerswitch is
turned off and on again.Thisisto
ensure thewarning doesnot
become a nuisance.
0%<¼Full(Nearlyempty)
25%>= ¼Full
50%>= ½Full
75%>= ¾Full
100%=Full
WasteWater
0% Full
▼
Waterlevelin thewaste watertank
(2 measurement levels)
Ifthe waterpump powerswitch is
turned ONand thewastewater
levelrisesto 100%a warning beep
willbe heard and the LCD display
willflash. To cancelthewarning,
press the select (◄) button. The
warning willnot be repeated unless
the waterpump powerswitch is
turned off and on again.Thisisto
ensure thewarning doesnot
become a nuisance.
0%<½Full
50%>= ½Full(optionallevel
that isnotnormallyfitted by
mostmanufacturers)
100%=Full
ExternalTemp
26.5°C
▼
Externaltemperature (in degrees
centigrade)asmeasured bythe
externaltemperature probe
Battery Current
5.4Amps
▼
Current (in Amps) being drawn from
orchargedinto the selected battery
Ifa solarpanelisfitted thisdisplay
willinclude the current being
provided bythe solarpanel.
Negative figure (-) =current
being drawn fromthe selected
battery
Positive figure=current being
used tochargetheselected
battery

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4.3Menu Functions-Settingssection
Display Description Options/ Notes
Pump Select?
<Internal>
▼
Showsthe currentlyselected pump
that willbe operated bypressing the
pump on / off switch (TAP symbol)
Use the selectbutton (◄)to change
Note: if yourwaterpump stops
working, thissetting mayhavebeen
inadvertentlychanged.
<INTERNAL>=The internal
pump willbe operatedbythe
pump switch
<EXTERNAL>=The External
pump willbe operatedbythe
pump switch
<BOTH>=Both the Internal
and Externalpumpswill be
operated simultaneouslyby
the pump switch
WaterTank Fill?
<Start 1Min>
▼
Allowsoperationofthe External
pump fora period ofone minute
(forfilling the internaltankfromthe
externaltank)
Use the selectbutton (◄)to START
(orSTOP)
Will haveno effect ifthe
Externalpump isalready
switched on (seeabove)
Will not operate ifthe Internal
(Fresh)watertankisshowing
100%Full
Clock Set?
12:00
▼
Access to set the internalclock
Press the select button (◄)to
select HOUR
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to
select MINUTE
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to exit
Please note the clockusesa
24 hourcycle
Alarm Set?
12:00
▼
Access to set the alarmclock
Press the select button (◄)to
select HOUR
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to
select MINUTE
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to exit
Please note the alarmusesa
24 hourcycle
Alarm = Off
▼
Showsthe alarmclockstatus(on /
off)
Press the select button (◄)to
switch between OFF orON
The addition ofa asterisk(*)
in the top left ofthe main
EC325 displayindicatesthat
the alarmisset

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Display Description Options/ Notes
Set Event Timer?
▼
Access to set the event timer
Press the select button (◄)to
select HOUR ON
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to
select MINUTEON
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to
select HOUR OFF
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to
select MINUTEOFF
Use the up /down ( ▼)buttonsto
change
Press the select button (◄)to exit
Please note the event timer
usesa 24hourcycle
The event timerisused to
switch the controlpanel
poweron and off in the
absenceofthe user/
occupier.
See section4.4 forfurther
details.
EventTimer=Off
12:00 till 12:00
▼
Showsthe event timerstatus(OFF /
ON)and the current On and Off
times
Press the select button (◄)to
switch between OFF orON
The addition ofa hash (#)in
the top right ofthe main
EC325 displayindicatesthat
the event timerisset
4.4EventTimerexample
The event timerisdesigned to allowthe leisurevehicle userto turn the 12vpoweron oroff (in thesame way
asusingthecontrolpanelpowerbutton)withoutbeing in thevehicle. Thisallowslightsorotherequipment
to beturned on oroff at a predetermined time.
Example -to turnon one interiorlight at11.00pm for1 hour
Ensure the clockisset to the correct time
Scrollto the ‘Set Event Timer?’screen
Following the instruction insection 4.3, set the ON time to 23:00 and the OFF time to 24:00
Scrollto the ‘Event Timer=’ screen and select ON
Scrollto the main controlpaneldisplayand ensurea hash (#)isdisplayedin the right ofthe display
Turn all lightsand 12vequipment offin thevehicleexcept the light that youwant the event timerto
automaticallyswitchon
Turn the 12vpoweroff on the controlpanel
Exit the vehicle
At 11:00pm(23:00)thecontrolpanelwillswitchthe12vpoweron and therefore anyequipment thatwasleft
switched on willbe turned on. The 12vpowerwill be switched off at Midnight (24:00).

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4.5Warning Messages
VehicleBattery
DangerouslyLow
ThisWARNINGdisplayindicatesthatthe
Vehiclebatteryvoltage islow(10.9 voltsor
less). The panelwillbeep forone minute and
then switch overto the Leisure batteryto
prevent draining the Vehicle battery.
You can switch overtothe
Leisurebatteryimmediately
(and cancelthe beep)byusing
the batteryselectorswitch
Leisure Battery
DangerouslyLow
ThisWARNINGdisplayindicatesthatthe
Leisurebatteryvoltage islow(6voltsorless).
The panelwillbeep forone minute andthen
switch the poweroff to prevent damage to the
leisure battery.
See section3.7 forfurther
details
System disabled
Engine started
ThisWARNINGdisplayindicatesthatthe
systemhasbeen disabledbecause the vehicle
engine isrunning
EMC (Electro Magnetic
Compatibility)directive
89/336/EECrequiresthat
electricalaccessorieswithin the
vehiclearedisconnected while
the vehicleisin motion
5Operational &SafetyInformation
5.1Connecting totheMainssupply-Safetychecks
Foryoursafetyit is IMPORTANT that you followtheseconnectionsinstructionseach timeyourLeisure
Vehicleisconnectedto a mainssupply.
A)Ensure suitabilityof theMains Supply.YourLeisure Vehicle shouldonlybe connected to an
approved supplythat meetsthe requirementsofBS7671. In most casesthe site warden will hold
information regarding suitabilityofsupply.Ifusing a generatoryou also need to complywith the
requirements/ instructionssupplied with the generator. Pleasenote that some electronic
generators maynot be compatiblewith yourleisure system.
B)Switchthe EC328PSU internal PowerConverterOFF. Locate the green ‘Charger’powerswitch
on the EC328PSUand ensure theswitchisin the OFF (0)positionbefore connection to the mains
supply.
C)Connectthe Hook-up Lead. Firstlyconnect the supplied hook-up lead (orange cablewith blue
connectors) to the LeisureVehicleand then connect to themainssupply.
D)Check Residual Current Device operation. Locate the RCDwithin theEC328PSUand ensure
the RCD isswitched on (leverin up position). Press the ‘TEST’button and confirmthat the RCD
turnsoff (leverin downposition).Switch the RCD back to the on position (leverin up position). If
the test button failed to operate the RCD see section 5.2.
E)Check correctPolarity. Locate the ‘ReversePolarity’indicatoron the EC328PSU andensure
that the indicatorisNOTilluminated. Ifthe indicatorisilluminated see section 5.2.
F) Check Miniature CircuitBreakers. Locate the MCB’s within the EC328PSU (adjacent to the
RCD)and ensuretheyareallintheON (up)position.IfanyMCB’sfail to latchinthe on position
see section 5.2.
G) Turnthe EC328PSU ON. Locate the green powerswitch on the EC328PSUandturn to the ON(I)
position.The switchwillilluminate when turned on.
H)Check operation of equipment. It isnowsafe to checkthe operation ofthe 12vand 230v
equipment.