Sargent EC155 User manual

EC155PowerControlSystem
Issue 2 Page 1of 11 June 2013
ImportantVersion Identification
Pleasebe awarethat therearetworevisionsof the EC5xseries controlpanels.
The olderrevision 1panels haveagreen powerLED and ablack circuit boardand arecovered by theold
issue 1instructions (see www.sargentltd.co.uk).
Theseissue 2instructions only apply tothe laterrevision 2controlpanels whichhaveabluepowerLED
and agreen circuit board.
1KeyFeatures
150W(~12A)combined PowerConverter/ Battery Charger-Converts the 230Vmains supplyinto12V
DC powertorun theleisureequipment and charge thebattery.
Lowcurrent switching reducesvoltage drop inthe circuit and improved circuit fusingprovides better
protectionforthe harness and equipment.
Links tothe EC5xseries LED ControlPaneltoprovide simplebutintelligent controlof the 12V
equipment and builtinoverdischarge softwareprotectsthe leisureandvehiclebatteries.
2SystemOverview
The followingdiagramshows the typicalconfiguration of the EC155system. The key componentis
the EC155 powersupplyunit (PSU), whichis the hub ofthe systemand provides connectivity tothe
ancillary components and theEC5xseries controlpanel.
EC50 / 51 Control Panel
12vLEISURE
BATTERY
12vVEHICLE
BATTERY
12v
EQUIPMENT
230v
EQUIPMENT
230v
IN
SENSOR
INPUTS
MainsControl
Equipment
EC155 PowerSupplyUnit
150W
Charger /
PowerSupply
RelayModule
EC51Model Only
12vLEISURE
BATTERY
12vLEISURE
BATTERY
12vVEHICLE
BATTERY
12vVEHICLE
BATTERY
12v
EQUIPMENT
230v
EQUIPMENT
230v
IN
230v
IN
SENSOR
INPUTS
MainsControl
Equipment
EC155 PowerSupplyUnit
150W
Charger /
PowerSupply
RelayModule
EC51Model Only

EC155PowerControlSystem
Issue 2 Page 2of 11 June 2013
3PowerSupplyDetails
Forthesafeoperation ofallelectricalequipment withinyourLeisureVehicleitisimportant that you
read andfully understand theseinstructions. If you areunsureof any pointpleasecontact yourdealer
/ distributorforadvicebeforeuse.
The followingdiagramshows the EC155PSU layout.
WARNING
Underheavy loads theEC155PSU casemaybecomehot. ALWAYS ensuretheventilationslots have
aclearflowof air. Donot placecombustiblematerials against / adjacent tothe EC155PSU. The PSU
willshutdownif overheatedand willrestartautomatically when cool.
3.1BatteryCharger / Power Converter
The EC155PSU incorporatesafixed voltage battery charger/ powerconverter.Thebatterycharger/
powerconverteralsopowers theleisureequipmentwhen the mains supplyis connected. This module
supplies 13.8VDC tothe leisureequipment uptoamaximumof 12 Amps (155 Watts),thereforethe
availablepoweris distributed between the leisureload and thebattery, withthe leisureload taking
priority asperthe following example:
Leisureload Availablepowerforbattery charging
3A 9A
6A 6A
9A 3A
12A 0A
Power
Switch
RCD &
3MCB’s
DC
Fuses

EC155PowerControlSystem
Issue 2 Page 3of 11 June 2013
3.2Residual CurrentDevice&MiniatureCircuitBreakers
The Residual CurrentDevice(RCD)is basicallyprovided
toprotecttheuserfrom lethal electricshock. The RCD will
turn off (trip) ifthe currentflowing intheliveconductor
does notfullyreturn downthe neutral conductor, i.e. some
current is passingthroughaperson downtoearthor
through afaultyappliance.
ToensuretheRCD is working correctly, the test button
should be operated eachtimethevehicleisconnected to
the mainssupply(see section5.1)
The Miniature Circuit Breakers(MCB’s)operatein asimilar
waytotraditionalfusesand areprovidedtoprotectthe
wiring installationfrom overload orshortcircuit.If an
overload occurstheMCBwill switchoffthe supply. If this
occursyou should investigatethe causeofthe faultbefore
switching the MCBbackon.
The followingtableshows the rating and circuit allocation forthe threeMCB’s
MCB Rating WireColour Description
1 10 Amps White 230VSockets
2 10 Amps White(Yellowforheater) Extra230VSockets / Heater
3 6 Amps Black (Blue forwaterheater) Fridge / WaterHeater/ 12VCharger
(internally connected)
3.3Fuses
WARNING
When replacingfuses always replaceafusewiththe correct value. NEVER replacewithahighervalue/
rating as this coulddamage the wiringharness. If areplacement fuse‘blows’do not keep replacing the
fuseas you coulddamage the wiringharness.Pleaseinvestigatethe fault and contact yourdealer.
The followingtableshows the fuseallocationforthe 12fuses fitted tothe EC155PSU.
Fuse Rating Fuse Colour WireColour Description
1 15 Amps Blue Red / Yellow Fridge (nonecompressortype)
2 10 Amps Red Grey FrontLights
3 5 Amps Tan Yellow/Green Hob and HeaterIgniters Supply
4 10 Amps Red Green / Blue WaterPump/ Toilet
5 10 Amps Red Black/Blue VentilationFans
6 10 Amps Red Pink RearLights
7 10 Amps Red Yellow/ White 12VSockets / TVAmplifier/ Entertainment
8 5 Amps Tan Brown/ Yellow Permanent Supply (Radio/ Fridge)
9 20 Amps Yellow Brown/ Green VehicleBattery
10 20 Amps Yellow Brown/ Blue LeisureBattery
11 10 Amps Red Black/Red HeaterFan
12 15 Amps Blue ---- Charger
The followingtableshows details ofthe fuse(s)located at the Leisurebattery.
Battery 1 20 Amps Yellow Brown/ Blue Fuseremotelylocated nearbattery
Test
Button
RCD MCB’s

EC155PowerControlSystem
Issue 2 Page 4of 11 June 2013
3.4Battery
A)Type/ Selection
Foroptimumperformanceand safety itisessentialthat only aproprietary brand LEISUREbatteryis
used withatypicalcapacity of 75 to120 Ah(Ampere/ hours). Anormalcarbatteryis NOTsuitable.
This battery shouldalways be connected when the systemisinuse.
The EC155PSU isdesignedtocharge standardlead acidleisurebatteries, howeverit may be used
withGelbatteries depending on theircomposition.Pleaseconsult the batterydocumentationfor
furtheradvice.
The battery feed is fittedwithan inlinefusebetween the batteryand the electricalharness, and is
usuallylocated immediately outsidethe battery compartment orwithin500mmof the battery. The
maximumrating of this fuseis 20Aperbattery.
B)Installation& Removal
Always disconnect the 230Vmains supply andturnthe EC155PSU chargerswitchtothe OFF (0)
positionbeforeremoving orinstallingthe battery.
When connectingthe battery, ensurethat the correct polarity is observed(black isnegative[-] and red
is positive[+])andthatthe terminalsaresecurelyfastened. Crocodileclips must not be used.
WARNING
Explosivegases may be present at the battery. Takecaretoprevent flames and sparks inthe vicinity
of the battery and do not smoke.
C)Operation/ Servicing
Undernormalcircumstances it shouldnot benecessary toremovethe battery otherthan forroutine
inspection of the terminals and “topping up”ofthe battery fluidwhereapplicable. Pleasesee
instructions supplied withthe battery.
Note: Donotoverdischargethe battery.One of the most common causes of batteryfailureis when
the batteryis discharged belowthe recommended levelofapproximately 10V. Dischargingabattery
belowthis figurecan causepermanent damagetoone ormoreof the cells withinthe battery.
Toprevent overdischarge, the EC155PSU inconjunction withthe EC5xseriescontrolpanel
incorporates abatteryprotect circuit that warns and thendisconnects the batterieswhen they fall
belowthe followingconditions:
Battery
Voltage
cutoff Actionaftercutoff Notes
Vehicle 10.9V
Battery selection is
changed fromVehicle
battery toLeisure
battery. If the leisure
batteryis below9v
then afurtherwarning
willoccur(see below).
This cut offlevelis designed toprotect the vehicle
battery fromoverdischarge. The10.9Vlevel
ensures thereis sufficient powerinthe batteryto
run the vehicleelectronics andstartthe vehicle.
This cut offonly applies topowerdrawnfromthe
battery bythe leisureequipment; it willnot protect
the batteryif you leavethevehiclelights on.
Leisure 9V Poweris turnedoff
Thisis an emergency cutoff leveltoprotect the
battery fromseveredamage. You shouldnot rely
on this cut off levelduring normaloperation, but
manage yourpowerconsumption toadischarge
levelof 10V.
This cut offonly applies topowerdrawnfromthe
battery bythe leisureequipment that is controlled
by the controlpanelpowerswitch;it willnotprotect
the battery fromdischarge bythe radioorother
permanently connected equipment.
Note: the systemalsoincorporatesan overvoltagecut-out whichturns thesystempoweroff if either
battery voltage exceeds 15V(indicated by theleveldisplay top LED flashing).

EC155PowerControlSystem
Issue 2 Page 5of 11 June 2013
4Control Panel Details
4.1Layoutand Buttons
The followingdiagramshows the controlpanellayout and button functions(EC50 controlpanel).
Note: toremovethe decorativebezel, pull down and lift forward asindicated by the blue arrow.
4.2Operation
Symbol Function Description
Main12v Power
switch
This switchturns on (oroff)the12 voltpower.
As the poweris turnedon theLeisurebatteryis automatically selected
and the LED displayshows the battery voltage. The poweristurnedoff
automatically when the engine is started. Seealso4.3below.
WaterPumppower
switch
This switchturns on powertothe internalwaterpumpready foruse.
It can be used toturnoff the pumpovernight toavoidanynoisefromthe
pump. Whenthe switchison, theLED willshowBlue when the fresh
watertank levelis ¼orabove, and Red if thelevelis under¼. See also
4.2.1below.
Auxiliary power
switch
This switchturns the Awning, Entry orotherLighting on (oroff). When
the switchis on the LED willshowBlue.
L
Select LEISURE
battery and display
battery voltage
This switchis usedtoselect the Leisurebattery and todisplay the
battery voltage level.Press oncetoselectanddisplay the voltage. This
display willturnoff automatically after5seconds. The LED next tothe
button willshowthat the battery has been selected.
If the Leisurebattery dropsbelow9Vthe LED willchangetoRedand an
alarmwilltriggertowarnyou thatthe batteryis low. This alarmlasts for
1minuteand then the powerwillbeswitched off toprotect thebattery.
See also4.2.1below.
V
Select VEHICLE
battery and display
battery voltage
This switchis usedtoselect the Vehiclebattery and todisplay the
battery voltage level.Press oncetoselectanddisplay the voltage. This
display willturnoff automatically after5seconds.
The LED next tothe buttonwillshowthat the battery has beenselected.
If the Vehiclebattery dropsbelow10.9Vthe LED will change toRed an
alarmwilltriggertowarnyou thatthe batteryis low. This alarmlasts for
1minuteand then the battery selection willautomatically switchoverto
the Leisurebattery toprotect the vehiclebattery. See also4.2.1below.
+
-
+
-
EC50 Control Panel
+- +-
V
+- +-
L
Power
ON/OFF
Pump(s)
ON/ OFF
Auxiliary
ON/ OFF
Leisure
Select &
Level
Indicator
Lampsx5 Level
Display
Vehicle
Select&
Level
EC50 Control Panel
+- +-
V
+- +-
L
EC50 Control Panel
+- +-
V
+- +-
L
EC50 Control Panel
+- +-
V
+- +-
V
+- +-
V
+- +-
L
+- +-
L
+- +-
L
Power
ON/OFF
Pump(s)
ON/ OFF
Auxiliary
ON/ OFF
Leisure
Select &
Level
Indicator
Lampsx5 Level
Display
Vehicle
Select&
Level

EC155PowerControlSystem
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EC51 version of the controlpanelwithwaterleveldisplay
WaterLeveltest This switchis usedtodisplaythe freshwaterlevelwithinthe onboard
watertank. Press oncetoselectthe Freshtank and showthe water
level. The tank has5levels Empty, ¼, ½, ¾and Full. This display will
turnoff automatically after5seconds.
WasteFullindicator The LED adjacent tothe waterlevelbutton isused toshowwhen the
WasteWaterTankis full.The tankis fullwhenthe LEDisilluminated.
4.2.1 AudibleWarnings
The revision2controlpanels nowinclude an audiblewarning.
If the leisureorvehiclebattery warnings aretriggered (see 3.4.C)abeeperwillsound todrawyour
attention tothe problem. The beeperand thewarning canbe cancelled by pressing any button. To
avoidany warning becoming anuisanceit will onlybe delivered oncewhilst thepowerremains on.
The warning willbe reactivatedwhen the powerhas been offand then turned on again.
OnEC51 controlpanels, ifthe pumpis turnedon and the freshwaterlevelfalls below¼abeeperwill
sound todrawyourattention tothe problem. The beeperand thewarningcan becancelledby
pressing any button. If the pumpis turned onand the wastetankbecomes fullabeeperwillsound to
drawyourattention tothe problem. The beeperand the warning can be cancelledby pressing any
button. Toavoidany warning becoming anuisanceit willonly be deliveredoncewhilst the pump
remains on. The warning willbe reactivatedwhen the pumphas been off andthenturned on again.
EC51 Control Panel
+- +-
V
+- +-
L
Water
Level
Waste
Full
Indicator
Power
ON/ OFF
Pump(s)
ON/ OFF
Leisure
Select&
Level
Indicator
Lampsx5 Level
Display
Vehicle
Select&
Level
EC51 Control Panel
+- +-
V
+- +-
L
EC51 Control Panel
+- +-
V
+- +-
V
+- +-
V
+- +-
L
+- +-
L
+- +-
L
Water
Level
Waste
Full
Indicator
Power
ON/ OFF
Pump(s)
ON/ OFF
Leisure
Select&
Level
Indicator
Lampsx5 Level
Display
Vehicle
Select&
Level

EC155PowerControlSystem
Issue 2 Page 7of 11 June 2013
4.3System Disable
Tomeet EMC (ElectroMagnetic Compatibility)directive89/336/EEC the EC50 series controlpanelwill
shutdown, and the electricalaccessories withinthe vehiclewillbedisconnected whilethevehicleisin
motion. During this statetheLeisureand Vehiclebutton LED’s willflashtoindicatethe engine is
running and theleisurebatteryis being charged fromthe alternator.
When the engine is stopped the controlpanelreturnstostandby mode ready tobe turned onby the
powerbutton.
4.4Bar Graph Technical data
LED Colour Voltagereading Waterreading
14V Green 13.5-15(>15 LED Flashes) Full
13V Green 12.5-13.5 ¾
12V Yellow 11.5-12.5 ½
11V Yellow 10.5-11.5 ¼
10V Red <= 10.5(<9LED Flashes) Less than ¼
5Operational &SafetyInformation
5.1Connecting to theMainssupply-Safetychecks
Foryoursafety itis IMPORTANT that you followtheseconnectionsinstructionseachtimeyourLeisure
Vehicleis connected toamains supply.
A)EnsuresuitabilityoftheMainsSupply. YourLeisureVehicleshouldonly beconnected toan
approvedsupply that meets the requirements of BS7671. Inmost cases the sitewarden will hold
information regardingsuitability ofsupply. If using ageneratoryou alsoneedtocomply withthe
requirements / instructions suppliedwiththe generator. Pleasenotethat someelectronic
generators may not be compatiblewithyourleisuresystem.
B)SwitchtheEC155PSU internal PowerConverterOFF. Locatethe red‘Charger’powerswitchon
the EC155PSU and ensuretheswitchisintheOFF (0)position beforeconnection tothe mains
supply.
C)ConnecttheHook-upLead. Firstly connect the supplied hook-up lead (orange cablewithblue
connectors)tothe LeisureVehicleand thenconnect tothe mains supply.
D)Check Residual CurrentDevice operation.LocatetheRCD withinthe EC155PSU and ensure
the RCD is switched on (leverinup position).Press the ‘TEST’button and confirmthat the RCD
turns off (leverindownposition).Switchthe RCD back tothe onposition(leverinup position). If
the test button failedtooperatethe RCD seesection5.2.
E)Check MiniatureCircuitBreakers. Locatethe MCB’swithinthe EC155PSU (adjacent tothe
RCD)and ensurethey areallinthe ON (up)position. If any MCB’s failtolatchinthe on position
see section 5.2.
F)TurntheEC155PSU ON. Locatethe red powerswitchon the EC155PSU and turntothe ON (I)
position. The switchwillilluminatewhen turnedon.
G)Check operationofequipment. It is nowsafetocheck the operationof the12Vand 230V
equipment.

EC155PowerControlSystem
Issue 2 Page 8of 11 June 2013
5.2Common FaultTable
Fault PossibleCause ProposedFix
Connecting lead between
the siteandLeisure
Vehicle notconnected
Checkand connect leadasper 5.1C
Checkalsoinputconnectoratthebaseofthe EC155PSU
RCD switched off Reset RCD as per 5.1D
RCD not operating
correctly
Checksupplypolarity; ifthe RCD continuestofail contactyour
Dealer, asthere is probablyan equipment or wiringfault.
MCBswitched off
Reset MCBbyswitchingOFF (downposition)thenbackON(up
position),iftheMCBcontinuestofail contactyour Dealer, asthere is
probablyan equipmentor wiring fault.
Noor deficientsupply
fromsite Contact siteWardenforassistance
No230 volt
outputfromPSU
Other fault Contact your Dealer
Control Panel hasno
display
Checkbatteries&fuses,turnEC155PSUcharger switchon,and
ensure mainssupplyis connected.
Checkcontrol panelconnectinglead atEC155PSUand behind
Control Panel
Contact your Dealer
12V Power turnsoff
Batterysavefeaturehasoperatedtoprotectthe Vehicle batteryand
or the Leisure battery. See3.4C
Engine has beenstarted; allequipmenthasbeen disconnected to
meet EMC requirements(BatteryLED’s flashing).See 4.3
Control Panel
Problems
Control Panel display
corrupt/ erraticfunction
Observecontrolpanel handlinginstructions
Control panel software mayhavecrashed.Rebootcontrolpanel by
turning offthe EC155PSUchargerswitchand removing fuses9&10
at theEC155PSU(2x20A fusesfor leisure and vehicle batteries).
Wait 30secondsthenreplacethefusesand turnthecharger switch
on.
(Alternatively, removethe bezel atthe controlpanel bypulling down
in the centreatthebottom, unplugthe controlpanelmulti-way
connector,wait30 seconds,thenplug backinand reassemble.)
No230V supply Checkall above
Charger not switched on Switchchargerswitchon(I)position,switchwill illuminate
Batterynot connectedand
/ or charged Install chargedbatteryas per 3.4
Power switchoncontrol
panel notswitchedtoON Turn poweron atcontrolpanel
Batteryflat/ Batteryfuse
blown
Recharge battery, checkfuses,check charging voltage is presentat
battery
Fuseblown Checkall fuses areintactand the correctvalue fuseis installedas
per fusetable
Equipmentswitchedoff/
unplugged Checkequipment isswitchedon andconnected tothe 12V supply
PSUoverheated / auto
shutdownoperated
Reduceload on system.Allow PSU tocool down.PSUwill
automaticallyrestartwhencool.See section 3
No12 voltoutput
from PSU
Other fault Contact your Dealer
Fuseblown Replacefuse
Pumpnot
working Pumpturnedoff Turn pumpon bypressingthepumpbutton attheEC155 control
panel (tap symbol)

EC155PowerControlSystem
Issue 2 Page 9of 11 June 2013
6Technical Data& Approvals
6.1OutlineSpecification
INPUT 230V 230 Volts/0to12Amps +/ -10%
OUTPUT 230V RCD protected, 3xMCBoutputs of 10, 10and 6A via 2x
9wayconnectors
INPUT 12V 2 x20A batteryinputs via asingle9wayconnector
OUTPUT 12V 20A totaloutputvia 4x16A switchedchannelsprotected
by12 fusedoutputsviaa12wayconnector
Integrated CHARGER
Input 220-240 Volts AC+/-10%,Frequency50 Hz +/-6%,
Current 3A max.
DC Output 13.8Volts nominal,Current 12Ampsmax(155
Watts).
Signal INPUT 1xEngine running via PSU connector (4xFreshwater
level, 1x Wastewater level onEC51 version)
Fresh&wasterwater negative
sensed
DataIN / OUT Datacommunication andpowertoControl Panel via8
wayRJ45 connector
IPrating IP31
Operating
temperature
Ambient 0to35° Centigrade
PSUcasetemperature withfullload 65°CMax
Automaticshutdownandrestart
if overheated / overloaded
6.2Dimensions
Overall size(HxWxD)260 x273 x110mm Fixing centres 262x224mm
EC155PSU
Clearances 75mm above,20mm below,50mm left &right Weight 2.2Kg
Overall size(HxWxD)80 x140 x30mm Fixing centres 123mm
EC50/51 Control
Panel Cut-out size(HxW)60x110mm Weight 100g
6.3Approvals
System:BSEN1648-1,BSEN1648-2 compliant, BS7671: 2008 compliant
Residual Current Device: RCD 40A 30mAtriptoBSEN61008
Miniature Circuit Breakers: MCB’s (10&6A)type C6000A breaking capacitytoBSEN60898
Electro Magnetic Compatibility(EMC)directive89/336/EEC
Integrated Charger Module: BSEN60335-1/2.29,89/336/EEC, IEC61000-3.2/3:1995, EMC certificate5A121501E
3rd partytested.
6.4Declaration ofConformity
Equipment: LeisurePowerControl SystemModel name: EC155PSU/EC50CP/ EC51CP/ EC52CP
Iherebydeclare thatthe equipmentnamed abovehas been designed tocomplywiththerelevantsections ofthe
abovereferenced approvals.Theunitcomplieswithall essentialrequirementsoftheDirectives.
Signed: Name: Position: Manufacturer:
Date:
ILSargent TechnicalDirector Sargent ElectricalServicesLtd
Unit 39,Tokenspire Business Park
Woodmansey, Beverley
East Yorkshire, UnitedKingdom

EC155PowerControlSystem
Issue 2 Page 10 of 11 June 2013
6.5Electrical Connection
A)BatteryInputConnector
Pin Function Fuse WireColour
1 Fridge 12Voutput 1 RED/ YELLOW
2 Battery common earth1 - WHITE/ ORANGE
3 Battery common earth2 - WHITE/ ORANGE
4 Auxiliary 12Voutput 2 SLATE/ RED
5 Vehiclebatteryinput 1 9 BROWN/ GREEN
6 Vehiclebatteryinput 2 9 BROWN/ GREEN
7 Fridge powerin/ Engine run - RED
8 Leisurebatteryinput 1 10 BROWN/ BLUE
9 Leisurebatteryinput 2 10 BROWN/ BLUE
B)12vOutputConnector
Pin Function Fuse WireColour
1 Radio 8 BROWN/ YELLOW
2 12v Sockets 1 7 YELLOW/ WHITE
3 12v Sockets 2 7 YELLOW/ WHITE
4 Ignitions 3 YELLOW/ GREEN
5 FrontLights 1 2 SLATE
6 FrontLights 2 2 SLATE
7 Heaterfan 11 BLACK/ RED
8 RearLights 1 6 PINK
9 RearLight2 6 PINK
10 Fans 5 BLACK/ BLUE
11 Toilet Pump 4 PURPLE
12 Pump 4 PURPLE/ BLACK
C)230vMainsInputconnector
Pin Function WireColour
1 Not used -
2 Earth GREEN/ YELLOW
3 Live BROWN
4 Neutral BLUE
1
3
2
4
5
6
7
8
9
1
3
2
4
5
6
7
8
9
12
11
10
1 2
3
4