Redring PSA12 Powerstream Ascari 12kW User manual

POWERSTREAM Ascari -p. 1 -

In s t a l l a t I o n g u I d e

Ref. : 1871184 - 10.051

Mo d e l n° 45-551860

Psa 12

POWERSTREAM Ascari -p. 2 -

1 - Installationandconguration ......................................................................p. 03

1.1 - Quick reference guide ..................................................................................................................p. 03

1.2 - Install options ...............................................................................................................................p. 04

1.3 - Boiler (serial numbers of 0500151 and over) ...............................................................................p. 05

1.4 - Menu options ...............................................................................................................................p. 06

1.5 - Summer / Winter mode ................................................................................................................p. 07

  1.6-Underoorheating .......................................................................................................................p. 07

2 - InstallationandDevicinginstructions .........................................................p. 08

2.1 - Introduction ..................................................................................................................................p. 08

2.2 - Important information ...................................................................................................................p. 09

  2.3-Technicalspecication ................................................................................................................. p. 10

2.4 - Preparation ..................................................................................................................................p. 11

2.4.1 - Opening case ..................................................................................................................p. 11

2.4.2 - Electrical compartment ....................................................................................................p. 12

   2.4.3-Selectingthermalcut-out.................................................................................................p. 12

2.5 - Installation requirements .............................................................................................................. p. 13

2.5.1 - Location ...........................................................................................................................p. 13

2.6 - Installation .................................................................................................................................... p. 13

2.6.1 - Main Unit .........................................................................................................................p. 13

2.6.2 - Plumbing .........................................................................................................................p. 14

    2.6.2.1-Radiators/Underoor ........................................................................................ p. 14

2.6.3 - Filling loop .......................................................................................................................p. 15

2.7 - Electrical ......................................................................................................................................p. 16

2.7.1 - Power selection ...............................................................................................................p. 17

2.8 - Commissioning and testing .......................................................................................................... p. 17

  2.9-Boilerconguration ...................................................................................................................... p. 18

2.9.1 - Automatic / Manual operation ..........................................................................................p. 19

2.10 - Pump speed ............................................................................................................................... p. 19

  2.11-Troubleshooting ..........................................................................................................................p. 19

2.12 - Servicing .................................................................................................................................... p. 19

  2.13-Dimensions-hydraulicconnections ..........................................................................................p. 20

2.14 - Power terminal ...........................................................................................................................p. 21

  2.15-Connectiontotheelectricity ....................................................................................................... p. 22

2.16 - Regulation circuit drawing .......................................................................................................... p. 23

   2.16.1-Operatingfromaswitchedlive ...................................................................................... p. 23

   2.16.2-Directroomthermostatconnectionsanddirectcylinderthermostat ............................. p. 24

2.17 - Control accessories wiring .........................................................................................................p. 25

   2.17.1-Operatingfromaswitchedlive ...................................................................................... p. 25

   2.17.2-Directroomthermostatconnectionsanddirectcylinderthermostat ............................. p. 26

2.18 - Wiring diagrams .........................................................................................................................p. 27

2.19 - 3 Speed water pump .................................................................................................................. p. 29

2.20 - Control pannel description ......................................................................................................... p. 30

2.21 - Regulation settings ....................................................................................................................p. 31

2.22 - Operating ................................................................................................................................... p. 33

2.22.1 - Automatic / Manual operation ........................................................................................p. 33

   2.22.2-Requestedheatingtemperaturesettinginmanualmode .............................................p. 33

   2.22.3-Summer/Wintershift ....................................................................................................p. 33

   2.22.4-Programmingthemaximumoutputsettingoftheboiler ................................................p. 34

   2.22.5-Temperaturesdisplay ....................................................................................................p. 34

2.23 - Counters ....................................................................................................................................p. 35

  2.24-Failuresdisplay ..........................................................................................................................p. 35

2.25 - Maintenance ..............................................................................................................................p. 36

  2.26-Troubleshooting .........................................................................................................................p. 36

CONTENTS

POWERSTREAM Ascari -p. 3 -

1 - INSTALLATION & CONFIGURATION

1.1 - Quick reference Guide

1. Itisrecommendedthattheboilerbeconnectedtoa10hourorsimilaroff-peaktariffthatprovidessome

daytimeoff-peakhours.

2. Wheretheoff-peaktariffisrestrictedachangeoverrelayshouldbeusedtoswitchpowertotheboilerwhen

theoff-peaksupplyisnotavailable.

3. Fillthesystemwithwaterpriortoturningontheelectricalsupplytotheboiler.

4. Ensurethesystemisushedthoroughlybeforelettinganyair/waterexitthroughthepressurereliefvalve

(dirtcanpreventthevalveclosing).

5. Checkthesystemisfullbyturningthepressurereliefvalvecap,andcheckwaterexitscorrectlythrough

thedischargepipe.

6. Amanualpressuregaugeshouldbeusedtocheckthesystempressurewhencold.Thepressureshouldbe

setbetween1bar&1.5bar.Noteallairshouldberemovedfromthesystembeforemeasuringthesystem

pressure.

6a Alternativewiththeelectricsupplyoff,theyellowbridgebetweenterminals10and11mayberemoved

beforellingthesystemforthenaltime(thispreventstheelementsturningon)andtheboilerpressure

gaugeusedtosetthecoldsystempressure.Oncesetto1-1.5bar,theboilershouldbeswitchedoffand

theyellowbridgereturnedtoitspositionbetweenterminals10&11.

POWERSTREAM Ascari -p. 4 -

1.2 - Install Options

1.SPACEHEATINGONLY(recommended)-directroomthermostatConnection

  •Theno-voltcontactsoftheroomthermostatshouldbeconnectedtoterminals1and2ofthe

boiler.

  • Menu option 4 should be set to 01 to allow the boiler to be controlled from the room

thermostat.

2. OPERATING WITH HOT WATER CYLINDER

Redringrecommendtouseadirectelectricunventedcylinderfortheproductionandstorageofthehotwater

asthisischeaperthananindirectcylinder,requireslessplumbing(pipingandvalves)andismorethermally

efcient.

Whenusingtheboilerforunventedhotwaterandheating,thetwo-portmotorisedvalveshouldbeinsertedin

theowfromtheboiler.ADifferentialPressurevalveshouldthenbeconnectedbetweentheowandreturnat

apointbetweentheboilerandthetwo-portmotorisedvalve.

Installation Configuration –Heating & Hot Water

ManM an

AutoAuto

ManM an

AutoAuto

ManM an

AutoAuto

0 bar0 bar

4 bar

Under Floor

Heating

8 litre Expansion vessel

3-speed pump

Room

thermostat

3-port diverter valve

3bar pressure

relief valve

Air bleeders

Hot water

outlet

Cylinder

thermostat

manifold

Differential

Pressure

Valve

W-Plan

10 way connector

Switched Live

Two-port valve

Two-port

valve

POWERSTREAM Ascari -p. 5 -

1.3 - Boiler (serial numbers of 0500151 and over)

Two options are available:

Option 1 - OperatingfromaSwitchedLive

SwitchedLive

1. Theswitchedlivefromthe10-wayconnectorblockshouldbeconnectedtoterminal25,whichislocated

besidetherelaylocatedintoprightoftheboiler.

2.Intheset-upmenu,setoption04to1

3. Auto-adaptability(option6oftheset-upmenu)shouldbeturnedoff.

4.Theminimumcentralheatingcircuittemperature(option3oftheset-upmenu)shouldbeselectedtoprovide

centralheatingandhotwatersafely.

5. Theboilershouldbesettooperateinwintermode(pressandholdtheradiatorkeyuntilthesnowake

indicator illuminates).

6. Allotheroptionsintheset-upmenushouldbesettotheMenuoptionslistedbelow.

Option2–DirectCylinderThermostat&Roomthermostatconnections

  •Thebrownwiresshouldberemovedfromterminals1and2andbeplacedintoterminals5and

6respectively.

  •Theroomthermostatno-voltNormallyOpencontactsoftheroomthermostatshouldbeconnected

betweenterminals1and2oftheboiler.Intheset-upmenu,setoption04to1.

  •Thecylinderthermostatnormallyopencontact(240V)shouldbeconnectedtoterminal25,wich

islocatedbesidetherelaylocatedintoprightoftheboiler.

  •Intheset-upmenu,setoption12to01

set option 13 to 00

POWERSTREAM Ascari -p. 6 -

1.4 - Menu Options

Theset-upmenushouldbeconguredasfollows,someoftheseparameterswillbemodiedbyinstructionsin

theprevioussections.

Option  Setting

02 80oC or as required 21-80oC

03 30oC or as required 21oC-maximumtemperatureset

04 1  if operating from a switched live or if a room

     thermostatinstalled0ifnot(doneverselect2)

05 1 if option 4 set to 1

06 1  recommended(unlessinstructedotherwise)

07 0   mandatory

11 1  min or user dened 1-6minutes delay in switching

elements.

12 0  mandatory

13 0   mandatory

14 n/a

15 0  mandatory

16 1 for 12kw boiler operation

     forreducedmaximumoutputpowersee§2.7.1

17 à 22 n/a

23 0  mandatory

Notes: In normal operation press the + button to check if the room thermostat is calling for heat once, a 1 indicates a call for heat. Press

the + button a second time and if auto-adaptability has been selected the temperature correction applied will be displayed (Option

06 Auto-adaptability adjusts the temperature of the heating circuit for the most efcient and temperature stable operation. )

POWERSTREAM Ascari -p. 7 -

1.5 - Summer / Winter Mode

The right-hand snow ake symbol should be illuminated indicating winter mode. If the sunshine symbol is

illuminated,selectwintermodebypressureandholdingtheradiatorbuttonontheboilerfor3seconds.InSummer

modetheheatingcircuitisswitchedoffbuthotwater,ifinstalledwillbestillbeheated.



 •Forunderoorheatingthe60oCinternaltemperaturecut-outshouldbeselected.

 •Whereunderoorandhotwatercylinderareusedinthesameheatingcircuititisnecessarytousethe

100oCTemperaturecut-outintheboilerandincludeaseparate60oCthermalcut-outfortheunderoor

heatingcircuit.

POWERSTREAM Ascari -p. 8 -

POWERSTREAM Ascari -p. 9 -

2-INSTALLATION&DEVICINGINSTRUCTIONS

Features

•SelectableWaterTemperature

 -radiators/Underoor(21-80oC)

•60oC or 100oCthermalcut-outsuitableforunderoorheatingorradiators

•RoomThermostatoperation

•FrostProtection,5oC minimum temperature

•Pumpprotection-onceadayoperationwhensystemisoff

•Pumpoverrunfacility

•4-stagesteppedturnon/off

•Weeklyalternativeswitchstart-upforprolongedlife

•Automaticwatertemperaturevariationfor50%on-offcycles(withroomthermostat)

•Switchoperationcounter–monitorsswitchusage

•Systempressuredisplay

WaterHeating

Itisrecommendedthattheboilerbeusedforcentralheatingpurposesonlyandhotwaterbestoredandheated

byadirectelectrichotwatercylinder.Thisallowshotwatertobeheatedovernightonanoff-peaktariffand

reducesheatlossesbetweentheboilerandthecylinder.

2.1 - Introduction

TheRedringPowerstreamAscariboilerisanallelectricdomesticcentralheatingboilersuitableforuseona230V

52A50Hzsupply.Theunitiseasytoinstallandrequiresnoue,makingitidealforapartmentsorpropertiesin

conservation areas.

Theunitissuppliedreadyforoperationasa12KW230Vsinglephaseboilerandwillautomaticallymodulatedown

to10,8and6KW.Themaximumoutputpowermayalsobemanuallylimitedtooperationatmaximumpower

levelsof10,8,6or4kWuponwhichtheboilerwillproportionallymodulatetolowerpowerlevels.

Finishedinacleanwhitecaseandwithdimensionsof620mmheightx405mmwidth,theboilerissuitablefor

installationinakitchenarea.Withthermalcutoutselectableat60oC or 100oCtheboilerissuitableforstandard

wetradiatorsystemsorunderoorheating.

Therearenoventilationrequirementsassociatedwiththeoperationofthisboiler,howevertomaintainadry

atmosphereawellventilatedroomisrecommended.

POWERSTREAM Ascari -p. 10 -

2.2 - Important Information

• The information given in this booklet is a guide only.All installations must follow the current

regulationsforthistypeofdeviceandwherenoinformationorconictinginformationisgivenin

thisguidetothatofthecurrentregulations,thecurrentregulationswillapply.

•DisconnecttheElectricitySupplybeforeattemptingtoremovethecoveroftheboiler.

•Theboilerweighs38kgandrequirestwopersonstoliftandinstalltheproduct.Pleaseensureall

mountingxingsandthewallontowhichitistobeinstalledaresufcientlystrongtotaketheweight

oftheunitplusitswatercontents.

•Theheatingsystemmustbeinstalledbyacompetentpersonandtocurrentregulationsinforce

atthetime.

•Allwiringshouldconformtotheregulationsinforceatthetime.Theapplianceisapprovedtoa

protectionratingofIPX1.Thereforeiftheapplianceistobeinstalledinaroomcontainingabath

orashower,anyelectricalswitchorcontrolutilisingmainselectricitymustbesosituatedthatit

cannotbetouchedbyapersonusingthebathorshower.Attentionisdrawntotherequirements

ofthecurrentBS7671(I.E.EWiringRegulations)andinScotlandtheelectricalprovisionsofthe

Building Regulations applicable in Scotland.

•Completeallplumbingworkbeforeconnectingtheboilertotheelectricitysupply.

•Thisappliancemustbeearthed!

•Theboilershouldbepermanentlyconnectedtotheelectricitysupply,directfroma63Afusedsupply

ontheconsumerunitviaadoublepolelinkedswitchwithminimumcontactgapof3mm.Noother

appliancesshouldbepoweredfromthissupply.

•Theexpansionvesselispre-chargedto1bar(0.1MPa).Duringtheinstallationprocessandbefore

operatingtheboilerthisshouldbecheckedusingasuitablepressuregauge.

•A3bar(0.3MPa)pressurereliefdeviceisincorporatedwithintheproduct,thecoldsystempressure

shouldnotexceed1.5bar(0.15MPa).

•WhenusingwithradiatorsttedwithTRVcontrolstheheatingsystemmusthaveabypassradiator

ttedcapableofcirculatingwaterat350litres/hour.

•Thesystemshouldbeushedpriortoconnectingtheboilertoremoveallparticlesfromthepipework.

Donotusethettedpressurereliefvalvetoushthesystemasparticlestrappedinthevalvewill

cause incorrect valve operation.

•Theoutletofthepressurereliefvalveshouldbeleftopentotheatmosphere,anyconnectiontothe

outletpipemustbeofaminimumdiameterof15mm,shouldfallcontinuouslyandshouldterminate

sothatwater/steammayvisiblyandsafelydischarge.Shouldanywaterorsteambeseentobe

exitingfromthisoutlettheboilerelectricitysupplyshouldbeswitchedoffandtheRedringcustomer

service centre contacted.

Importantinformation

Thisapplianceisnotintendedforuse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concerninguseoftheappliancebyresponsiblefortheirsafety.

Childrenshouldbesupervisedtoensurethattheydonotplaywiththeappliance.

POWERSTREAM Ascari -p. 11 -

•Adraincockshouldbeinstalledatthelowestpointintheheatingsystemtoallowthewaterinthe

heatingsystemtobedrainedasfullyaspossible.

•Whiletheboilerandheatingsystemmaybelledfromthecoldmainswatersupply,theboiler

mustbeisolatedfromthecoldmainswatersupplybyasuitablebreakinthesupplypipeduring

normal operation.

•FillingLoop- thisboilerisnotttedwithallingloop.Anyllingloopbeingttedshouldcomplywith

thewatersupply(waterttings)regulations1999SectionG24.1andG24.2.Allingloopshould

bettedatsomepointtoallowtheCHsystemtobelled.

•Theboilermustbeinstalledinanuprightpositionawayfromnearbyobjects(seeinstallationsection

forclearances)inaclean,dry,frostfreeplace.



ELECTRICAL

Supply    12kW@230V52A50Hz

     13kW@240V52A50Hz

MaximumPowerOutput  12kWmanuallyconvertibleto10,8,6or4KW

Modulation    Automaticthreeorfourstagereductionin2KW 

steps

12 kW - 10-8-6

10 kW - 8-6-4

8 kW - 6-4-2

6 kW - 4-2

Fuserequirements 63Amp

Numberandcross-section 3x16²(Phase+Neutral+Earth)

PERFORMANCE

WaterPressure

Minimum 0.5Bar (0.05MPa)

  Maximum  2.5Bar(0.25MPa)

Nominal 2 Bar (0.2MPa)

Water Temperature

Minimum 21oC

  Maximum  80oC

WaterFlowRate

  Minimum  350litres/hour

  Nominal  700litres/hour

  Maximum  1400litres/hour

ThermalLimit

100oC Radiators

60oC   Underoor

POWERSTREAM Ascari -p. 12 -



Weight 38kg

Dimensions    620mmhx405mmwx280d

Rating IPX1

Storagecapacity 5 litres

Connections 1»( 26/34) female

HeatExchanger Cast Iron

Elements    2heaterscomprising3x2kwincoloyelements

ExpansionVessel 8 litres

Pump     3-speedmanuallyselectable

Thermalcut-outs   2unitsmanuallyselectable60oC or 100oC

2.4 - Preparation



Theboilermaybeopenedbyunscrewingthebottomtwoboltsacoupleofturns(theydonotneedtoberemoved

completely).Thefrontcovermaythenbepulledoutfromthebottomandliftedoffthetwotoppins.

Switchofftheelectricitysupply

totheboilerbeforeopening

theinternalcover.

POWERSTREAM Ascari -p. 13 -

2.4.2 - Electrical Compartment

Withthecoverremovedaccesstotheelectricalconnectionsisachievedbyundoingthescrewoftheelectricbox.

Onceopenedaccessisgainedtotheelectricalconnectors,foreasyinstallation.



Thethermalcut-outsaresituatedatthetopoftheboilerandmaybeselectedduringtheinstallationbyre-routing

theelectricalconnections.Theboilerisfactorysetwiththe100oCcut-outselectedforusewithradiatorheating

systems.IftheBoileristobeusedwithunderoorheatingremovetheconnectorsfromthe100oC sensor and

connecttothe60oCsensorensuringthereisagoodconnection.

Wherebothunderoorandhotwatercylinderareused,itisnecessarytousethe100°Ctemperaturecut-outin

theboilerandincludeaseparate60°Cthermalcut-outfortheunderoorheatingcircuit.

Thermalcut-outselection

(100degCforradiators,60degCforunderoor)

60°C 100°CConnector

POWERSTREAM Ascari -p. 14 -

2.5 - Installation Requirements

2.5.1 - Location

Theboilermustbelocatedatleast300mmaboveanyobjectto

allowtheelementstoberemoved.Atleast100mmisrequired

atthetopoftheboilertoallowforconnectionofpipework.

10mmisrequiredatthesidesoftheunit.

 The boiler must be mounted on an internal solid masonry

wallcapableofwithstandingtheweightoftheproductwhen

full of water.

Considerationshouldbegiventotheroutingofelectriccables

totheproductandthewiringtoathermostat(ifused).

 The location must be free from frost and excessive

moisture.

2.6 - Installation

2.6.1 - Main Unit

Oncethelocationoftheboilerhasbeenselected,

marktheholepositionsaspergure6.1below.Use

aspirit-leveltoensuretheholesarealignedcorrectly.

Access to the bottom screw hole is achieved by

removingthebottomelementplate.

Oncemarkedout,drill8mmdiameterholesandplug

withmasonryplugs.Screwinhighstrengthscrews

toadepththatallowstheinnerfaceofthescrew

headtoprotrudefromthewalladistancetoallowthe

mountingplatesattherearoftheboilertoengage

(approx5mm).

 With suitable equipment or an assistant raise the

boilertothexingpointandensureeachscrewhas

engagedintothemountingslots.Tightenthescrews

tosecuretheboilertothewall.

Oncexedtothewalltheboilermaybeplumbed

intothecentralheatingsystem.

Ø8 screw plug

Overall frame

pattern

Ø8 screw plug

300

605

10 10

100

300

POWERSTREAM Ascari -p. 15 -





Installtheheatingsystembringingtheowandreturnstotheboilerlocation.

Thesystemshouldbeushedpriortoconnectingtheboilertoremoveallparticlesfromthepipework.

Donotusethettedpressurereliefvalvetoushthesystemasparticlestrappedinthevalvewillcause

incorrect valve operation.

Atleastoneairbleedingdeviceshouldalsobeconnectedtothehighestpointoftheplumbingsystemto

removetrappedairandensuresilentrunningoftheheatingsystem.

IfusingradiatorswithThermostaticRadiatorValvesabypassradiatormustbettedwithlockshieldvalves

thatwillallowaowof350litres/hour.

Servicevalvesshouldbeconnectedtotheinletandoutletoftheboilerforeasymaintenance.

Althoughtheboilercanoperatewithoutaroomthermostatthisisrequiredforautomaticadjustmentof

boiler output temperature.

Whereunderoorheatingisbeingusedwithouthotwatercylinder,the60oCthermalcut-outmust

connectedinplaceofthefactoryselected100oCdevice–seesection4.3.

Adraincockisrequiredtobettedinthelowestpartoftheheatingsystemtoallowthesystemuidtobe

drainedfully.

Room

thermostat

Radiators

Service

valves

Under Floor safety limiter

if used with hot water cylinder

Air bleeders

Pump

Expansion

Relief Valve

Expansion

vessel

Underoor heating

Drain

tap

POWERSTREAM Ascari -p. 16 -

Allingloopmustbeinstalledthatisolatesfromthecoldmainswatersupplyfromtheheatingsystemand

complieswiththecurrentbuildingandwaterregulationsinforceatthetime.

Theboilerincorporatesan8-litreexpansionvesselwhichissuitableforheatingsystemsasfollows:



Thisboilerisnotttedwithallingloop.Anyllingloopbeingttedshouldcomplywiththewatersupply(water

ttings)regulations1999SectionG24.1andG24.2.AllingloopshouldbettedatsomepointtoallowtheCH

systemtobelled.

Twotypesareshownbelow:

Stop

valve

Temporary Flexible Hose

Connection

To be removed immediately after

lling

Mains water

supply

Pressure Pump & reducing

valve

(if required)

Cistern &

Overow

Mains

water

supply

Heating

System Return

Double

check valve

assembly

Stop

valve

Stop

valve

Heating

System

Return

METHOD B

METHOD A



Recommendedandapprovedmethodforllingclosedcircuitsinahouse(R24-2aWaterRegulationsGuide)

POWERSTREAM Ascari -p. 17 -

2.7 - Electrical

WiringexternaltotheappliancemustbeinaccordancewiththecurrentI.E.EWiringregulations(BS7671)

forelectricalinstallationandanylocalregulations,whichapply.

Withtheboilerplumbedin,theelectricalconnectionscanbemade

 totheboiler:

Thisappliancemustbeearthed!

TheAscariboilercomeswithcage-clampconnectors.Theseareoperatedusinga2.5mmx0.4mmblade

screwdriverforaccessoryterminalsand3.5mmx0.5mmbladescrewdriverforpowerterminals.

Theboilershouldbepermanentlyconnectedtotheelectricitysupply,directfroma63Afusedsupplyonthe

consumerunitviaadoublepolelinkedswitchwithminimumcontactgapof3mm.Nootherappliancesshould

bepoweredfromthissupply.

Thenumberandcross-sectionofconnectorismandatory3x16²(phase+neutral+earth)(see§2.15

«connectiontotheelectricitysupply»)

Toconnectawire,insertthebladeofthescrewdriverintotheopeninglocatedjustaboveorbelowthecentral

markoftheterminalblockandpivotthebladetowardsthecentre.Thewiremaythenbeinsertedintothe

cageandthescrewdriverbladeremoved(see§2.14«Powerterminal»).

ROOMTHERMOSTAT-Thenovoltageconnectionsofaroomthermostatmaybeconnectedtoterminals

1(commoncontact)and2(NormallyOpencontact)oftheboiler(pleasecheckcompatibilitywiththermostat

manufacturersinstallationinstructions),routingthecablethroughthesmallercableentrypoints.Ifusinga

non-programmableroomthermostatitisrecommendedthattheno-voltageswitchedcontactsofaseparate

timer/programmerbeconnectinserieswiththeroomthermostattoterminal2oftheboiler.WARNING- a

switchedlivemustnotbeconnectedtotheboilerterminals.

Ifusedthecylinderthermostatnormallyopencontact(240V)shouldbeconnectedtoterminal25 of the

boiler’s electrical connectors ( see section Boiler electrical connections)

Thepowersupplycable(3x16²)shouldberoutedthroughthelargecableentrypointatthebottomofthe

boiler.Ifdesiredthecableentrymaybemovedtothetopoftheboilerbyremovingtheselfsealingnutfrom

thebottomtothetopentrypoint.

TheEarthwireshouldbeconnectedtothetopterminalmarkedwiththeEarthsymbol.

TheNeutralwireshouldbeconnectedtothelargeterminalmarked‘N’.

ThelivewiretothelargeterminallabelledPH.

DonotswitchontheelectricitysupplyuntilaskedtodosointheCommissioningandTestingsection.

Asaminimumitisrecommendedthataroomthermostatbeinstalledtocontroltheappliance.Thermostatic

radiatorvalvesmaybettedtothesystem,howevertheymustnotbettedintheroomwheretheroom

thermostatistted.Theremustbeatleastoneradiatorinstalledwithlockshieldvalvesthatshouldnotbe

closedandwillallow350litre/hrcirculation.FurtherguidancecanbeobtainedfromtheDomesticHeating

andHotWaterGuidetothebuildingregulations.

POWERSTREAM Ascari -p. 18 -

2.7.1 Power selection

Theboiler issuppliedas a12Kw modulatingboiler but canbe reducedto 10, 8,6 or4kw by disconnecting

individual elements.

* Remove blue connectors between power terminal and elements

according to drawing.

ex-work

R : Red

Bl : Black

W : White

B : Blue

12 kW 10 kW*

8 kW* 6 kW*

4 kW*

BBBB

WBl WBlR

BBB

WBl WBlR

BBB

WBl WBlR

Viewfrombellow



WaterTreatment,CleansingandFlushingtheHeatingSystem

NOTE: British Standard BS7593: 1992 stresses the importance of cleansing and ushing of the system to

ensure it continues to run efciently with the minimum of maintenance necessary. Halstead Boilers fully support

this professional approach and recommend that the system is cleansed with an effective chemical cleanser and

protected long term with a suitable inhibitor. Such products are available from Fernox and Sentinal.

Checkthepressureoftheexpansionvessel,thisshouldbefactorysetto1bar(0.1MPa).

Theheatingsystemshouldbelledusingtheapprovedinstalledllingloop.Ensureallradiatorvalvesare

open.Theinitialsystempressurewhencoldshouldbebetween1.0(0.lMPa)and1.5bar(0.15MPa).

Oncelledcheckthesystemforleaks.

Openthedraincockanddrainthesystemfully.

POWERSTREAM Ascari -p. 19 -

Rellthesystemfromthellingloop,toapressurebetween1-1.5bar(0.1-0.15MPa)andoperatethepressure

reliefvalvemanuallytocheckthatwaterrunsawaycorrectly,andthatthevalveclosescorrectly.

Whenboilerisinstandbymode,helptheairbleedingofinstallationbystartingaforcedcirculationfor2

minutes (press )

Topupthesystemto1.0bar(0.1MPa).

Disconnectthesystemfromthellingloop.

Checktheelectricconnectionsandthatallcoversetc.havebeenreplaced.Turnontheelectricitysupplyto

theboilerandallowtheunittodoitsselfdiagnosis.Referto§2.24ifafaultisdisplayed.

Useethyleneglycolonlywithincorporatedcorrosioninhibitor.Glycolratiamustbeunder10%.



Oncetheboilerhasinitialisedthefeatureoptionscanbeselected(seequickreferenceguideforoptions):

Press–and+togetherfor3secondstoentertheselectionmenu.Withreferenceto§2.21thetopdisplayshould

showaashing01.Usethe+/-keystoselecttheparametertobechangedandthetaporradiatorkeystochange

thesettingofanyselectedparameter:

02 Selectthemaximumtemperatureofthewatercirculatingintheheatingcircuit.

03 Selecttheminimumtemperatureofthewatercirculatingintheheatingcircuit.

04 Select1ifopratingfromaswitchedliveorifofroomthermostatisinstalledandconnectedto

theboiler(doneverselect2).

05 If04hasbeensetto1thissettingshouldalsobesetto1.

06 If04hasbeensetto1theboilercanautomaticallyadjustthewatertemperatureintheheating

circuitaccordingtoactualheat-uptimesoftheproperty,overridingtheminimumandmaximum

watertemperaturesettings.Ifthisfacilityisrequiredselect1,otherwiseset0.

07 Thisoptionshouldbesetto0.

08 n/a

09 n/a

10 n/a

11 Theboilercandelaytheswitchingonandoffoftheelementstoprovideasmoothpoweron-off

gradientandthenumberofon-offcyclesinashortperiod.Thedelaybetweenswitchesoperating

can be set from 1 to 6 minutes. (default is 2 min)

12 Thissettingshouldalwaysbesetto0.

13 Thissettingshouldalwaysbesetto0.

14 n/a

15 Thissettingshouldalwaysbesetto0

16 Thissettingshouldalwaysbesetto1

17 à 22 n/a

23 Thissettingshouldalwaysbesetto0

Press + & - togetherfor3secondstoexittheset-upmenu.

POWERSTREAM Ascari -p. 20 -

2.9.1 Automatic/ Manual Operation

TheboilermustbesettoManualoperationasfollows:

PressandholdtheAuto/Manbutton.ThedisplaywillshowAu or Man,presstheAuto/Manbuttonagainfora

shortperiodtotogglethedisplaysothatitshowsMan. Withthecorrectdisplayshowing,pressandholdAuto/

Man for 3 seconds to return to normal operating mode.

2.10 - Pump Speed

Theboilerisfactorysetatpumpspeed3,forlowerpumpspeedstheselectorinthecentreofthepumpmaybe

turnedto1or2usingalargeatbladedscrewdriver.



Theboilerhasmanyselectableoptions.Pleaseensurethecorrectselectionsaremadeforthetypeofinstallation

youhavemade.Ifyouhaveselectedtheuseofaroomthermostat,orhotwatercylinder,theboilerwillnotoperate

untilthesedevicesareconnected.

Theboilerindicatesaboilerfaultbyashing infrontofthesymbol«°C»,and or in front

ofthesymbol«bar»

PleasecalltheRedringCustomerServicedepartment–seeServicingsection.

FLASHINGSEGMENTSinfrontofbar–indicatethesystempressurehasfallenbelowtheminimum

operating pressure.

checkifwaterhasdischargedfromthepressurereliefvalve.IfsocallaRedringserviceagent.

checkforleakageinthesystem.

Oncethefaulthasbeenclearedtheboilerwillturnonagainifthesystemislledandpressurisedtoover0.5

bar.



ItisrecommendedthattheBoilerbeinstalledandservicedregularlybyaREDRINGserviceagenttoensure

continualtrouble-freeoperation.Fordetailsofserviceagentsinyourareapleasecontact:

Glen Dimplex Heating & Ventilation.

Millbrook House

Grange Drive, Hedge End

Southampton SO30 2DF

Telephone Redringtechnicalserviceon0344 879 3588

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Redring PSA12 Powerstream Ascari 12kW User manual

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