IDEAL MINI C24 User manual

usersguide

mini

C24/C28/C32

S24/S28

Whenreplacing anypartofthisappliance,useonlysparepartsthatyoucanbe

assuredconformtosafetyand performancespecificationthatwerequire.Donotuse

reconditionedorcopypartsthathavenotbeenclearlyauthorised byIdealBoilers

YourIdealusersguide

See reverseformini installation and servicing guide

Mini

MiniC24 G.C.applianceNo.47---348---18

MiniC28 G.C.applianceNo.47---348---19

MiniC32 G.C.applianceNo.47---348---25A

MiniS24 G.C.applianceNo.41---392---98

MiniS28 G.C.applianceNo.41---392---99

Destinationcountries:GB,IE

INTRODUCTION

Miniarewall mounted,roomsealed,non condensing boilers

featuring full sequence automatic sparkignition and fan

assisted combustion.

MiniC24,MiniC28 and MiniC32 arelow watercontent

combinationgasboilers.

MiniS24 and MiniS28 arelow watercontentsystemgas

boilers.

SAFETY

CurrentGasSafety(Installation&Use)

Regulationsor rulesinforce

Inyourowninterest,andthatofsafety,itisthelawthat this

boilermustbeinstalled byCORGIregisteredinstallerorinIE

acompetentperson,inaccordancewiththeabove

regulations.

Itisessentialthat theinstructionsinthisbookletarestrictly

followed,forsafeandeconomicaloperationoftheboiler.

ELECTRICITYSUPPLY

Theappliancemustbe efficientlyearthed.

Supply230 V50 Hz.Thefusingshould be3A.

Connectionmustbemadeinawaythatallowscomplete

isolationofthe electricalsupply,suchasadoublepoleswitch,

havinga3mm (1/8”)contactseparationinbothpoles,ora

plugandsocketservingonlytheboilerandsystemcontrols.

Themeansofisolationmustbeaccessibletotheuserafter

installation.

IMPORTANTNOTES

FThisappliancemustnotbeoperatedwithout thecasing

correctlyfittedandforminganadequateseal.

FIftheboilerisinstalledinacompartment thenthe

compartmentMUSTNOTbeusedforstoragepurposes.

FUndernocircumstances shouldanyofthesealed

componentsonthisappliancebeusedincorrectlyor

tamperedwith.

FIfitisknownorsuspectedthatafaultexistontheboiler

thenitMUSTNOTBEUSEDuntilthefaulthasbeen

corrected byaCORGIregisteredinstallerorinIEa

competentperson.

MINIMUMCLEARANCES

Clearancesof200 mm (7 7/8“)aboveand below,25 mm (1“)

atleft,50 mm (2“)atrightand450 mm (17 3/4“)at thefrontof

theboilercasemustbeallowedforservicing.

Afterinstallationthefollowingclearancesareallowableduring

use,providingthe encasingpartsareremoveablefor

servicing:

Thebottomclearancecanbereducedto20mm (3/4”).

Thefrontclearancecanbereducedto50mm (2”).

BOILER CONTROLS

BCDEFGA

MiniC28

MiniC32

MiniS24

MiniS28

A ApplianceOnlamp

BDomestichotwatertemperaturecontrol

CMainswitchandradiatortemperaturecontrol

DBoiler resetbutton

ELock--- outsignal lamp

FProgrammer(optional)

GSystempressureandtemperaturegauge

TOLIGHT THE BOILER

1Checkthat thevalveslocatedinthelowerpartoftheboiler

areopen.

2Switchthethe electricitysupplyon.

TheapplianceOnlampAwill flashevery4seconds

(stand---bycondition).

ForcombinationmodelsMiniC24,MiniC28 andMiniC32

3IftheboileristobeusedforCHandDHWpositionthe

mainswitchasinthefollowingillustration.

TheapplianceOnlampAwill flashevery2seconds

(operatingboiler).

Forsystem modelsMiniS24 andMiniS28

4To operatetheboilerpositionthemainswitchasinthe

followingillustration.

TheapplianceOnlampAwill flashevery2seconds

(operatingboiler).

All CORGI registered installers carry a CORGI ID card, and have a registration number. Both should be

recorded in your Benchmark Log Book. You can check your installer by calling CORGI direct on 01563 72300

THELOGBOOKSHOULDBECOMPLETEDAFTEREACHSERVICEANDKEPTWITHTHESEINSTRUCTIONS

Caradon Ideal Limited is a member of the Benchmark initiative and fully supports the aims of

the programme. Benchmark has been introduced to improve the standards of installation and

commissioning of central heating systems in the UK and to encourage the regular servicing of

all central heating systems to ensure safety and efficiency.

CONTROLOFCHTEMPERATURE

Theoutput temperatureofCHwaterisadjustablefroma

minimumofabout38°Ctoamaximumofabout85°Cby

turningtheknobC.

ApproxCHflowtemperaturesfortheboilerthermostat

settings:

Minimum(38 °C)

Maximum(85 °C)

CONTROLOFDHW TEMPERATURE

(MiniC24,MiniC28 andMiniC32)

ThetemperatureoftheDHWleavingtheboilercanbevaried

fromaminimumofabout35°Ctoamaximumofabout55°C

(withinthepowerlimitsoftheappliance)byturningthe

temperaturecontrolknobB.

Minimum(35 °C)

Maximum(55 °C)

AdjustmentoftheDHWtemperatureiscompletelyseparate

fromthatoftheCHcircuit.

Theadjustmentsystemintegratedwithintheboiler

automaticallycontrolstheflowofgastotheburnerinorderto

keepthetemperatureofDHWdeliveredconstant,between

thelimitsofmaximumandminimumoutput.

Wherethedemandisatalowlevelorwiththetemperature

set totheminimum,itisnormaltosee acycleoflightingand

extinguishingoftheburnerwhenrunning.

Adjustment

Itisadvisabletoadjust theDHWtemperaturetoalevel

commensuratewiththedemand,minimisingtheneedtomix

withcoldwater.Inthisway,theautomatic controlfacilitieswill

befullyexploited.

Moreover,wheretheamountoflimescalepresentinthewater

maybeparticularlygreat,notexceedingthepositionas

showninthefollowingillustration(about50 °C)minimises

annoyingincidencesofscaledepositsandclogging.

Inthesecases,however,itisadvisabletoinstall asmall water

treatmentdeviceorsoftener.Withsuchadeviceyoushould

avoid periodicdescaling.

Consequently,theDHWheatexchangerwill keepits

performanceconsistentforalongerperiodoftimewith

resulting gas savings.

TOSHUTDOWNTHE BOILER

Forshortperiods

Toturntheboileroff set thefunctionselectorCtotheO

position.

TheapplianceOnlampAwill flashevery4seconds.

Forlongperiods

Whenyoudonotexpect tousetheboilerforalongperiod:

1Switchthethe electricitysupplyoff.

2Shutoff thegas supplycockandthevalvesforthewater

circuitsfittedundertheboiler.

3Ifnecessary,emptythewatercircuits.

FROSTPROTECTION

MiniC24,MiniC28 andMiniC32 appliancesareprovided

withabuiltinanti---freezesystemthatoperatestheboiler

whenthetemperatureisbelow4°C

Therefore,whentheboilerisnotlitandusedincoldweather,

withconsequentriskof freezingdonotisolatetheboiler

fromthe electricitysupplyorclosethegasinletcock.

ESCAPEOFGAS

Shouldagasleakorfaultbesuspectedcontactyourlocal

gas supplierwithoutdelay.

Donotsearchforgasleakswithanakedflame.

CLEANING

Fornormalcleaningsimplydustwithadrycloth.

Toremovestubbornmarksandstainsuseadampclothand

mild detergent.

Donotuseabrasivecleaningmaterials.

MAINTENANCE

Theapplianceshould beservicedatleastonceayearbya

CORGIregisteredinstaller.

FAULTS

Noheatingorhotwater

Checkthatgasandelectricityareavailableat theboilerand

thatall switchesareon.

Checkthat thesystemwaterwaterpressuregaugeGreadsat

least0,5bar.

Checkthelock---outsignal lampE.Ifitisilluminated press the

boiler resetbuttonDtorestart theignitionsequence.

Hotwaterbutnoheating

Checkthat theprogrammerandroomthermostat(if fitted)are

bothcallingforheat.

Heatingbutnohotwater

Checkthatcoldwaterflowsoutofthetapsataminimumrate

of3.5litresperminute(or1pintin10 secondsorless).Ifnot,

lookforstopvalvesnotfullyopen.

Ifthesesimplechecksfailtosolvetheproblem,orthe

problemrecurs,consultyourservice engineer.

Points for Boiler User

Note. In line with our current warranty policy we would ask that you check through the following guide to

identify any problems external to the boiler prior to requesting a service engineers visit. Should the

problem be found to be other than with the appliance we reserve the right to levy a charge for the visit, or

for any pre-arranged visit where access is not gained by the engineer.

Troubleshooting – Typical Non Product Faults

Problem Solution

Boiler is not working for

central heating or hot water

•Is there power to the boiler i.e. is the left hand side green LED (A) alight and

flashing every 4 seconds. If not this is not a boiler fault – contact the installer

•Check pressure gauge on boiler shows a minimum of 1 bar

If not re-pressurise via the filling loop to 1 bar (if unsure contact your

installer), turn off the tap on the filling loop and press the reset button (D) to

reset the boiler. If unable to do so or if the pressure continues to drop after

filling then contact your installer

•Is the lockout signal lamp (E) alight – Press boiler reset button (D) – If boiler

still does not fire contact the installer

Boiler goes through ignition

sequence but will not fire for

either central heating or hot

water and then goes to

ignition lockout

•Check gas supply (try another gas appliance cooker/fire etc) If no gas

supply then this is not a boiler fault – Contact the gas supplier

Fan & pump run

continuously but there is no

attempt at ignition •Check that the air pressure switch test caps, on top of the boiler, are fitted

correctly.

Mini C Only

Operating for hot water but

will not operate for central

heating

•Check that integral programmer is set to an ‘on’ period and the function

switch is set to ‘auto’ – If it still does not operate contact your installer

•If fitted with an external programmer check that the central heating channel

is set at an ‘on’ period – If it still does not operate contact your installer.

•Check the room thermostat is set at the required temperature – Test the

room thermostat by turning fully up – If this does not respond contact your

installer

•Check the radiator temperature control (C) is set at the winter setting for

central heating.

The nature of all combination boilers is to heat up water directly from the incoming mains water supply directly

through the boiler to supply domestic hot water at the stated flow rates, (as shown in the boiler installation

instructions), to achieve a 35°C temperature rise. As the ambient temperature of the cold main varies during the

summer and winter months it is likely in the colder winter months that the flow rate will need to be reduced at the

outlet taps to achieve the same temperatures achieved in the warmer summer months. This is not a fault with the

appliance but is relevant to the varying temperature of the incoming cold mains water supply.

Mini S Only

Operating for hot water but

will not operate for central

heating

•If fitted with an external programmer check that the central heating channel

is set at an ‘on’ period – If it still does not operate contact your installer.

•Check the room thermostat is set at the required temperature – Test the

room thermostat by turning fully up – If this does not respond contact your

installer

Operating for central heating

but will not operate for hot

water

•If fitted with an external programmer check that the domestic hot water

channel is set at an ‘on’ period – If it still does not operate contact your

installer.

•Check the cylinder thermostat is set at the required temperature – Test the

cylinder thermostat by turning fully up – If this does not respond contact

your installer

Ideal Boilers, P.O. Box 103, National Ave, Kingston Upon Hull, HU5 4JN. Tel.

01482 492251 Fax. 01482 448858. Registration No. London 322 137.

Caradon Ideal Limited pursues a policy of continuing improvement in the design and

performance of its products. The right is therefore reserved to vary specification without notice.

Ideal Consumer Helpline

Tel: 01482 498660

www.idealboilers.com

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