Worcester Greenstar 12i System ErP User manual

REENSTAR 2i System I 24i System
HUNG RSF GAS- FI DCONDENSING BOILER
CENT RAL H EATING AND INDI R ECT FED
WATER
Jig ;nrta
THE APPLIANC E IS FOR USE WITH
NATURAl GAS OR L.P .G. {Ga t II 2H3P TYPE C13 & C33)
N ATURAL GAS:
WORCESTER GREENSTAR 12i System GC NUMBER 41 ·311-67
WORCESTERGRE
ENSTAR 24i System GC NUMBER 41-31 1-68
UOUIO
PETROL EU M GAS:
WORCESTER GREENSTAR 12i System GC NUMBER 41·311-69
WORC ESTER GREENSTAR 24i System GC NUMBER 41 ·311· 70
INSTRUCTION MANUAL
INSTALLATION,COMMISSIONI NG
& SERVICING
(&nchmor!() CHECKLIST & service
interval record, printed within this
manual

SY MBOLS USED IN THI S MAN UAL:
Domestic h ot wa t er
Cent ra l h&ati~
Hot wat «M storage cyl in der
Cold water main supply
Electrici ty &up p ty
Gas su pply
LIFTING AND CARRYI
NG PRECA l/T IONS:
Uft only a
manageab le weight. or ask for
he lp.
Wilen lifting t
he boil er, bend the knee s.
and keep the back st raight and feet apart.
Do not fi ft and twist at th e &ame time.
Lift and carry the boiler cl ose to the body
Wear protective clothing and gl oves to
pr ot&et fr om any sharp edges
INSTALLAT ION &
SERVICI NG INSTRUCT IONS
INSTALLATION & SERVICING INSTRUCTIONS
PLEASE READ THESE INSTRUCTIONSCAREFULLY BEFORE STARTING INSTALLATI ON .
THESE
IN STR UC TI ONS ARE APPUCABLE TO THE WORCESTER APPLIANCE MODEL(S)
STAT ED ON THE FRONT COVER OF TH IS MANUAL ONLY AND MUST NOT BE USED WITH
ANY OTHER MAKE
OR MODEL OF APPLIANCE.
THE INSTRUCTIONS APPLY IN THE UK ONLYAND MUST BE FO LLOWED E XCEPT FO R ANY
STATU TORY OB LI GAT ION.
T
HI S APPLIANCE MUST BE INST AUL ED BY A COMPETENT PERSON. FAILURE TO INSTALL
CORRECTLY COULD
LEAD TO PROSECUTION.
IF
YO UARE IN ANY DOUBT CO N TACT T HE WO RCESTER TECH NI CAL HELPLINE.
DI STA N CE LEARN IN G AN D TRAINI NG COURSES ARE AVA ILABLE FROM WO RCESTER.
PLEASELEAVE THESEINSTRUCTIONSWITHTHE COMPLETEDBENCHMARK CHECKUS
T,
(OR A CERTIFI CATE CONFIRMING COMPliANCE WITH IS 8 13, EIREONLY)ANOTHEUSER
MANUAL WITH THE OWNER OR AT THE GAS METER AFTER INSTALLATI ON OR SERVIC·
lNG. THE BENCHMARK CHECKUSTCAN
BE FOUNDIN THE BACK TWO PAGES OF THE
INSTAULATION MANUAL
AB BREVIAT IONS USED IN THISMAN UAL :
0 Di ameter
NG Natural Gas
LPG Liqu id Petro leum Gas
CH ~ntra l Heating
OHW Domestic Ho t Water
IP I ng re ssProtection
SEOB UK S&a so nal EK.ciency of D omestic Boaar& in the Uni ted Kingdom
Check List
Hardwar ellite rature pack
Item Qty
Greenstar 12i System/24i System In st allati on/ Servicing In st r uc ti ons ... .. .... !
Users Instructions .... .. .... . .... . .... .. .... . .... .. .... . .... .. .... . .... .. .... . .... .... . .... .. .... . .... .. .... . .... . .... !
Benchmark Log B oo k.......... .. .......... ........ ........... .. . ..... . ..... .. ...... . .... .. ......... .. ............. I
B en chmarkAddendum Sheet... .. .... .. ... .. ......... .. ......... .. ....... .. ......... .. ... .. .... .. ... .. .... .. I
Co nsum er Guarantee Card .... .. .... . .... .. .... . .... .. .... . .... .. .... . .... .... . .... .. .... . .... .. .... . .... .... !
Sea lin g Pack .. ............................ .......... . .... . ..... . .... . ..... . .... ................................ ......... 1
Compression Nut
22 mm .. ... .. ......... .. ......... .. ... .. .... .. ....... .. ... .. .... .. ... .. .... .. ... .. .... .. 3
Compression Ring 22mm .
.... .. .... . .... . .... .. .... . .... .. .... . ........ . .... .. .... . .... .. .... . .... .. .... 3
Co mpression Nut 15mm............................................ .. ......................................1
Compression Ring 15mm .
.. ... .. .... .. ... .. .... .. ... .. .... .. ... ...... ... .. .... .. ... .. ......... .. ......... !
Fi bre Wash er 23.9 x 17 .2x 1.5 ... .. ... .. ... .. .... .. ... .. .... .. ....... .. ... .. .... .. ... .. .... .. ... .. .... .2
Bonded Washer 3 /, For Gas Pipe .............. .. ............ .. .... .. .................... .. ......... !
Environment 2010 Installer Leaflet ............. ...... .. .... ........ .. .. .. .. .... .... .... .. .... .. .. .... .... 1
Environment 2010 Art Leaflet .................
.. ......... .. ......... .. ....................... .. .... .. ........ !
Ir is h Guidelines Leaflet .... . .... .. .... . .... .. .... . .... .. .... . .... . .... .. ........ . .... . .... .. .... . .... .. .... . .... .. 1
Warranty Return Envelope
........... .. ... .. ................. .. . .... . .. ............. .... . .... .... ... ...... ..... 1
Bo$d1Grou p

CONTENTS
SAFETY & REGULATIONS
SAFETY PRECAUTIONS & SYMBOLS
INSTALLATION REGULATIONS
APPLIANCE I NFORMATlON
GEN ERAL INFORMATION
TEC
HNICAL DA TA
LAYOUT& COMPONENTS
PRE-INSTALLATION
CLEANI
NG PRIMARY SYSTEMS
MA I NS SUPPLY
WAT ER SYSTEMS & PIPEWORK
CONDENSATEPIP EWO RK
PRESSURE RE LIEF PI PEWORK
BO IL ER L OCAT I ON &CLEARANCES
PLUMB I NG MANIFOLD
FL
UE TE RM INAL POS IT IONS
FL UE OPTIONS
INSTALILATlON
UNPA C KI NG TH E WA LL F RAME
WA LL MOUNTING TEMPLATEI FLUE OPEN IN G
UNP AC KI NG TH E APPLIANCE
BO IL ER CONNECTIONS
FL UE INSTALLA TI ON
CONDENSATE CONNECTION
ELECTRI CAL
POSITION OF WIRE D COMPONENTS
COMMISSIONING
PRE- COMM I SS I ON ING CHECKS
FI LILIN G THE SYST EM
STARTIN GTHEAPPUANCE
WATER TREATME NT
COMMISS IONIN G
FI
NIS H ING COMM I SSION ING
SERVIC I NG & SI'I\RES
INSPECT ION AN D SE R VIC E
REPLA
CE MENT OF PARTS
SETTING T
HE GAS /A IR RATIO
SHORT PARTS LI ST
CONVERSION KITS
L. P. G. CONVE RSI ON
FAULT FINDING & DIAGNOSIS
FAULTFINDI NG
CH FUNCTION
PROTECTION FUNCTI
ON
ADD ITIONAL INSTRUCTIONSFOR Fm iN G OPTIONAL DIVERTER VALVE CAN BE
FOUND AT THE REAR OF THIS MANUA L
BENCHMARK CHECKLIST
SERVICEINTERVAL RECORD SHEET
~ORCESTER
Bosd'l GtcHip
IHGT/UMION6 SEIMOtiG lliSTRVCTl ONS FORWORCESTER GRttNstNI I 21 S,~ ~lcfl
871611205!ia(04105}
3
3
4
6
&-7
8
9
10
11
12
13·14
15
16
17
18
19
20
21 ·2 2
26
27
28
29
30
32
33
34
35-40
41 · 51
52·54
55
56
57
58
59
CONTENTS

SAF ET Y PRECAUTIONS
IF YOU SMEll GAS:
X DON'T SMOKE OR STR I KE MATC HE S
X DON'T TU RN ELECTRICAL SWITCHES ON OR OFF
./ DO PUT OUT NAKED FLAMES
./DO OPEN DOORS AND WINDOWS
./DO KE EP PEOPlE AWAY F ROM THE AREA AFF E CT ED
./DO TURN OFF THE CONTRO L VALVE AT THE METER
./DO CAll YOUR GAS COMPANY
(lW«h-lf)
A Benchma ri<. Chec kl ist is pr ovided by t he manufacturer fort he installer to oomplete
includi ng the ir CORGI registmtion nu mber to conf ir m that the boiler has been ins ta lled,
co mmi ssioned and serviced according to the manufac turer's inst ruc tions.
IMPORTANT: T he completed Be-nc tvnark Checklist will be required in the even t of any
warranty work and may be requir ed by the lo cal Bu ild ing Con tro l Inspector.
HEALTH & SAFETY
The appl iance contains no asbestos and no sOOstances have been used in th e
construction process that contravene the COSHH Regu lat io ns (Control of Su bs tan ces
Hazardous to HeaJth Regulations 19 88).
COMBUSnB LE AND CORROSIVE MATER IALS
Do not stOre Or use any co mbustible materials (papm, th imers, pai:nte et c.) inside or
within thevicinity of the appliMoe.
Ole mically aggressive substances, such as halogena ted hydrocarbons containi ng
chbrine or fluorine compounds can corr ode t he appliance and i nva lidate anywarranty.
Flm NG & MODIFICATIONS
Frtting the appliance and any controls to t he appliance may only be carried out by a
competent engi neer in accordance with t he current Gas Safety {Installation an d Use)
Regutat)ons .
Ave systems mvst not
be modified in a.ny W~y other th;:t. n as described in the fi tt i ng
instiucti on&. Any misu se or unauthorised modificatio ns to the app 5ance, fl ue or
:.ssociated components and syste ms could irlV3 1 id~1e th e warranty. The m anu facturer
accep
ts nol ia b ttity arlaillg from any such actions, excludi ng statutory righ ts .
SERVICING
A cNise the user to have th e system serviced an nually by a competent. qualified
engineer (such as Brit
i.t> hGas or CORGI registered personnel) usi~ approved spar es,
to help maintain the econom y, safety and reliability of the appliance.
IMPORTANT· The service engineer must complete the Service Record on the
BenchmarkChecklist after each service.
INSTALLAnON REGULATIONS
Current Gas Safety {Installation & U se)
Re~ l at ion s:
Al lgas appliances mUSI bein stalled bya com-
petentpersonin aoco rd ancewilhthe abcwe regUa·
tions. Failure to install ap pliances eorrecuy C:OUd
lead to prosecution .
Th eappliancemust be inS1aJied inaccordance with,
a nd co m ply t o. the curre nt Gos Safejy Regu l ations,
lEE Regulations , Bu ilding Regulations, Build ing
Standards {& otland) {Coosolidation), B uB din g
Rag_~ l at ion s {No rthem Ire land) , bcal wata< by- la ws,
Hoalll & Safely Documero 635 (The El ectricity at
Wort< Reg ulat;,ns 19 89) and any other local
req ui rements .
British Standards:
Th e relevant Bri1ish Standards should be lollowed,
including:
8S7074:1 :Code of p<aetice for domost<: and hoi
water supply
BS6891:l nstellation ollow pnlSS u "' gasp ipeWO<k
upto 28 nvn (R1)
8S5546: nstalla tion of gao hot wate r a..ppl'""' fo r
domestic puti)OEieS
EN:12828 : Central heal i ng l Ot domest<: premises
BS544 0:t : Rues and ventilation for gas apptt.
ances ol ra ted heating not exceeding 70kW {net) :
Aues
8S5 440:2 : Aues and ventilation l o< gas appli·
an ces ol rated heating not exceeding 70kW { net) :
Air Supply
8$7593 : Treatmen1 of water in do mestichot water
centro! heating syslems
8S 6796 : lnstallat i oo of gas fired b oilers o1 rated
input upto 7 CJ<W loet)
WOOre no speci fiC instruction is giYOn, r&ferenoe
should be made to tha relevant Brftish Standard
code:& of P ract ice.
L P.G.I~ation:
An app li anoe using L.P.G. mustnot be instal l ed in a
room or intern al spaoe below ground l eve l un l ess
one side ofthe building isopento t he gromd.
T tmber framed bu ilcings:
WhElr& the boiler $ to be fitted to a timber framOO
bui1ding the guide lin es lald down in 85 544 0: Part
1 and IGE "Gas I nstallations in Ti mber Frame
Bu il din gs" shou ld be adhered 10.
Potable waler.
AJ I seals, joints and co~nds ( inclu ding flux and
sol de r) and components uood as part of tM so~
onda<y domestic water system n>.JSt be appr ovod
byWRI>S.
CH water:
Ar1ificiolly sollenedwater must r<>t be used to fi n the
cenl!af heating sysoem.
SAFETY PRECAUT IONS
INStN.Vll ON & SEIW+CING INSfiWCfiCNS FORWO RC~ GREENSfAA 1 21 S,.~~~ SpkM
871G 112~l)W'OO)
~WORCESTER
& I NSTALLATION REGULATIONS

(WI>en fit1ed to walllrame)
Dopll> to wall
....
-
Check List
Hardware/lite ra ture pack
A
700mm
It em Qty
Greenstar 12 iSystem/ 24 i Syst em lnstalation/Servic ing ln st ructi ons ......... 1
Users l. nstru cti on s ....................................................................................... ... .. ..... . .. 1
Be nch mark Log Book ....................... - ...... - .. ·-·····-····-············-····-·········-·········-·1
Be nch mark Add en d um S hee t ....... . ............. . ............... .... .. ................... . ..... ..- .. .. ... .....1
Co nsumer Guarant ee Card ············································· ·············-· ···· ··················1
Sea .ling Pack .............................. .. ................................. .............. . ...... ...... .. . .. .... . ...... 1
Compression Nut 22mm ··························-··················· ·· ······ .................... . ...... .3
Compression R in g 22mm ............................. .. .. . ... .... ... ..... .. .. ...... . .... .... ... ........ .3
Compression Nut 15 mm. .. ........ . ...... .. ... .. ...... . .... . ._ ... .. ...... . .... .. .. ... .. .... ... .... .. .... .. 1
Compression Ring
15mm ...................... ... .. ......... . ... .. ...... ... .. ..... .. .... .. .. ... .. .... ... .!
Fibre Washer 23 .9 x 17 .2 x 1.5 .... . ...... .. ... .. .. .... . ...... .. ... .... .... . ...... .. ... .. .. .. .. .. . .... .. 2
Bonded Washer•t,
For Ga a Pipe ............. .. .... .. ..... ... . ............ . ............... . .... . ... !
Irish Guidelines Leaflet . .. ...... . .... ... .... .. ..... .. .... ... .... .. ... .. .. .... . ...... .. ... .... .. ... .. ..... . ...... ..1
Warran
ty Return Envelope ... .. ... .... ... .. ........... .... ... .. .. .... ................................ .. .... .. .. 1
~ORCESTER
l8osdt GRMJp
ll'«iTAUJoriC)f<~ 6 ~II'Nic;INQ IN'""-'CnONS 'OtltWO!Itctst£R GAttNSTM 121 ~ S,~
e 71• 112 O!l!lalOoiiOCII
GENERAL INFORMATION
STANDARD PACKAGE :
A · Wallhu"9gasfredoond""" hg boil« lo<
central hea.Mg and in direct domestic hot wat or
B ·B oil er support ' "' """ P' ~ pl umt>O>g Jig
C ·Hatdw.lre li te rawre pack
D·Bottom Pane l
0
SPEC I FICATIONS:
Pfe- w>- ed and pre- pbn bed
Galvan iMd st eel ~r.er fratno
Digtal,.,...,olsyst""'
Au1Dmalic iglilion
eKed bur- iglition electJOdes
Buill1n- thermootat
Buill1n laJftlinding ciagnostica
Uod tAaling automatic gu ......
Combustion ai r fan with speed regulcor
CH tempaat ure sensor& oontro l
Pu mp ant i -seiz u re p ro t ection
Flue gas t em pera tu re limi 1 er
C<>ndensa le tr8p&syphoo
B
GENERALINFORM ATIO N

TECHN IC AL DATA
DE SC RIPTI ON NATURAL GAS L.P.G.
UNITS
12 i System 24i Syt;:ta m 12i S)l$1em 24i System
Gas fl ow rate- Max. 10 m in utes from li ght in g
NaturaJ Gas G20
m3/h 1. 33 2.67
Propane Gas (LPG) kglh 0 .46 1.91
Centra l Heating
Max. ra ted heat inp ut KW
12.32
24 . 62 12. 32 24 . 62
Min. heat input
KW
3. 70 7. 38 5 .95
9.64
Max. ratOO heat
40J3o•c KW
12.85 25 . 67 26 . 67 26 . 67
Max. ra tOO heat
50J3o•c KW 12.74 25.45 12 .74 26.46
Max. ra ted heat output 80/60°C
KW 12
24 12 24
Max. flow tamperature
•c
82 82 82 82
M in . output
•c
4.0
7. 90 6.37 10.3
Max. llow tempe<atum to cylinde r(when uood with ;,~ega~ opiXrol d.....,r vaM!)
•c
76 75 75 75
Max . perm~s t b l e operating prG$$urG bar
2.6 2.6 2.6 2.5
Avai labla pwnp head at 21 °C &y& t em te mp mat ur e ri se
m 2.0 2.0 2.0 2.0
Fl ue
Au& GM T emp. 60/SO"' C, ra ted/min.l oad
•c
82/56 78183 82/57 79/84
Aue G as Temp. 40/30"'C, rated min . load
•c
41/33
84/35
43/35
56/38
C02 level at max. rat &d heat output (after 30 mins) % 9.8 9.8 11.0
11.0
C0
2
level at min. rated heat output (afte r 30 mi ns}
% 9.2 9.2 10.5 10.5
NOx·class 5 5 5 5
Condensate
Max . condensation rate 1 /h
0.93 2.0 0. 93 2.0
pH value, approx. 4.8 4.8 4.8 4.8
Electrical
El ec t rica lpower supp ly voltage AC ... V
230 230 230 230
Fl'equency
Hz 50 50 M 50
Max. powet oo~ m ption
w 140 140
14 0 140
Genera l Data
S EDBUK band A A A A
Appl iance prot ootion rating
IP
X4 D X4D X4D X4D
Petmissable ambient tempera tur es
•c
0·50 0· 50 0· 50 0· 50
Nomi.na l capacity of app l ianoe ltr
3.9 3.9 3.9 3.9
NO i $0 output l-evel { Max cent ral heat i ng) dB(A) 42 42 42 42
Packaged boilerwei ght
kg
44.4 4 4.4 4 4.4 44.4
Tota l boile rwei ght
kg 39.5 39.5 39.5
39.5
li ft weight
kg
27.1 27 .1 2 7. 1 27.1
S
EDBUK %
90.1 90.2 91.4 92.0
TECHN I CAL DATA

10••
. ..
...
11 .. . . . ..
12 •••• •
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• 15
•
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LAYOUT & COMPONENTS
The diagram opp0$ite shows the controls in the
se:rvidng position and excludos tho outer caso .
1
AIR I GAS MANIFOlD
2 FAN
3 AIR I GAS ADJUSTMENT SCREW
4 GAS VALVE (PRETIL CE471 SHOWN. AN
AlJERNATIVE VALVE MAY BE USED ON
LATER APPliANCES)
5 IN LET PRESSURE l£ST f'QlNT
6 EXPANSION VESSEL
7 WALL MOUNTING FRAME
8 COVER FOR EXTERNAL WIRING
CONNECTIONS
9 CONOENSAT£ CONNECTION FROM
18 ......... .
HEAT EXCHANGER
11
12 ••••
a--·····.
•'
9 • ''
·'.
23 · · · · ·· · - ~ ....
33 .•
~ORCESTER
l8osdt Gt'OQp
'
8
. JJ.I Ir t
•
•
•
•
31
,.
,.
." ...
....
. 6
• 21
15
. •. .• ·16
.... 14
...
••• • 32
10 FWE PRESSURE SWITCH
11 FAN PRESSURE TEST POINT
12 MANUAL VENT POINT
13 IGNOONANDFLAMESENSEELECTROOES
14 OVERHEAT THERMOSTAT
15 FLAME VIEWING MIRRO R REPLACED
BY R ETAINING BRAC KET ON LATER
AP PLI ANCES
16 SECUR ING NU T, A IR /
GAS MA NIFOLD CL AMP
17 SE NSOR· BO IL ER FL OW
18 F LUE AIR PRESSURE SW I TCH
CONNECTION
19 F LUE OVERHEAT THERMOSTAT
20 ACC ESS POINT FOR CLEA NING HEAT
EXCHANGER/SUMP
21 REMOVAB LE TOP CASE PANEL FOR
SERVICING
22 GAS INLET CONNECTION 22mm
•• • 19 COMPRESSION
23 TRAPI SYPHON
24 TRAPI SYPHON OUTLET
CONNECTION ( 22mm PLASTIC PIPE)
..... ro 25 FLOW
26 RETURN
71 DRAIN POINT
28 S1UCONE TUBE (USE TO VENT AIR
FROM HEAT EXCHANGER)
29 PUMP
I ·' .. .30
30 sYSTEM PRESSURE GAUGE
31 CONTROL PANE LIN SERVICE
POSITION
32 HEAT EXCHANGER
33 A CCESS COVER FOR TRANSFORMER &
PCB
•27
II'«STAU.AIIOH6 HIINic;INO INS11ruen0NS ,Oit WO!Itctst£R GAttNSTM 13 :S,.~ S,-
8 71• 112 O!l!lalOoiiOCI}
LAYOU T&COM PO N ENTS

....Y.......
.. .. .. .. .. .. ........
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45
LA YOU T&COMPON EN TS
••••••••
•
40 ....
•
•••
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50
49
• •
•
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'
LAYOUT & COMPONENTS
34 SYSTEM PUMP
35 UNUSE D PORT
36 AUTO AIR VENT
37 FLOW CONNECTION FROM BO ILER
HEAT EXCHANGER
38 FLOW CONNECTION TO
SE R VICE VALVE
39 D RA IN POIN T
40 RETURN CONNECT I ON TO
SE RVIC E VA LVE
41 OPTIONAL INT E GR AL DIVERTERVALVE
POSI TI ON
42
PRESSURE RE UE F VALVE
43 COMPACT HYDRAU UC MO UNnNG
SCREW (2) TO BOILER
...... -·43
'
'
'
'
'
'
44 CH T EMPE RA TU RE CONTRO L
45 MA IN $ ON/OFFINDI CATOR/
D IAGNOST ICU GHT (B LU E)
46 SERV I CE MODE BUTTO N
47 BURNERONINDI CATOR U GHT (G REEN)
48 MASTER SWITCH ON/OFF
49 NOTUSED
50 FAULT RESET BUTTON
51 SYSTEM PRESS UR EGAU GE
52 POSIT I ON FOR OPnONAL
PR OGRAMMER
53 IN TE RNA L BYPASS WITHIN
PLA5nC
MOULDING

IMPORTANT: All the following Pt•lnstallatlon a.ctlons muat be read and
requirements met beforestarting boUer or flue lnstaUatlon.
-,_- ·. '• ••• ' '.'' ·, :: ,-,- ;-c -;-;-,--- :-•;-•,, ",• .'• ~ •,•,-
' -' [, ( ::_ • ' - ,'. • • . • • ,., •• ~ • ,'. -:::- • ;:-.;::;. [ .::: ;. _1 - ,- •• :
~ORCEST!R
...... .._
CLEANING PRIMARY SYSTEMS
IMPORTANT : De bri s from the system can
damage the boiler and r ~uce effici ency .
Failure to comply w ith the guidelines for
the use of w ater treat ment w ith the
appli an ce w ill ln vell dete the 1pp li ance
warranty.
BEFORECLEANING TliE SYSTE M:
ENSURE
THE SYSTE M AN D PtPEWORK IS
IN GOOD WORKINGORDER
KEEP TH E EXISTING BO ILER/
C
IR CULAT IN G PUMP WHERE POSSI BLE
OR USEA PO W ER FL US HIN G MACHINE
TO
AI DT HE CLEANSI NG PROCE DURE
BEFO RE IN STALUNG A NEWBOILE R.
CLEANING THE PRIMARY SYSTEM:
fill !he system w;oh cold woter ond
ched< 1or lew.
2 Open a1 ch in oodca end drain tl1e
system.
3 Close dra;n coc1co end adda ouilable
flushing a~nt compotlble with
aluminium at th e oorroct st rength for
the system cond i tion in acco rd ance with
the m anufac t urer' I i nstructions.
The PH value of the system water
must be leu thin a or the appliance
guaranteewill
be lnvolldotod .
• Cir cu late th e fluahing agen t be f ore the
oo l e< is fired up.
4 Roo the boikw/ayttom et nOtma loperaMg
temperature u directed bj lhe manufacb.Jrec
of the llual> ing ~· ·
5 0..... ond thorougNy lluoh the system to
,....,.. tholtuohing 190'11 end debris.
CLEANING PRIMARY SYSTE MS

MA I NS SUPPLY
MAINS SUPPLY
ELECTR IC SUPPLY :
• Supply: 230V·50Hz, 50 watts not including
pump.
• Cable: PVC insula ted 0. 75m m' (24 x 0. 2mm)
temperature rated to90°C.
• ExtemaJ 3A fuse to 88 13 62 .
• The app li ance mu st beearthed.
• IPX4 0.
• All pipes to the b oil$~' must be cross· bonded .
• Mainssupply to the boiler and system wiring
centremust be through one co mm on fu sed
double pole isolatorsituated adjacent to the
applianc e.
• Wiri ng must comply with l EE wiring regu l ations
and any local regulations wh ic h may applyto
f ixed wiring to a stationaryapprtance.
• Any &:ys.te m oonnec:ted to th eboi ta r must not
hove aseparale electri<;al supply.
GAS S UPP LY:
• Boil erS using NG mU$t be oonnectod to a
gove rned met9!.
• LPG bo il ers m ust be connected to a
regulator.
• Installation and connection ot the gas supply
to the boil er must be in accordance with
BS689t.
• Underno circumstances should the s
iz e of
the gas supply pi J)4:1 beless tha n that of th e
appl ian ce inl et coMect ion.
• The meter 01 ragulator and pipework to the
mater mus t be checked, preferablybythe ga&
supplier. to ensure it is in good workingo rd er
and c an meetthe gas fl ow and pressure
requirements in add ition to the demand from
any ot her appliance bei ng served.
BoschGnx~p

IMPORTANT: The optional lnt.,n•l dlverter valve thould not be used with an
unvented eyllnder unless 1 zone v1tve Ia fitted In the flow or return to the
cylinder to comply with unvented cyflnder regulat i on. .
S PLAN LAYOUT
__..
8
WATER SYSTEMS &PIPEWORK
PLASTIC PIP EWOR I< & UNDER FLOOR
HEAnNG:
• An y plastic pipewo r1< must have a polymeric
barrierwhh 600mm (minimum) lerog!h of
copperor steel pipe connec t ed 10 t he boiler.
• Plastic
pipeworl< used for underftoo 1 heating
must be correctlyoontroled with a
lhermoot.tic blending valve limitrng tire
tempera!ure of the oirouita 10 apptox. 60"C.
l1
J l J
I l
~ CONNEcnONSIVAU/E$;
0
0
t
Boiler flow
SY STE M FILL
~ ORC ESTE R
eo.dtG~p
Ia
1
'181
J LJ
II l
Y PLAN LAYOUT
WITH EXTERNAL DIVERTER VAlYE
SYSTEM LAYOUT
WITH OPTIONAL INTERNAL DfVERTERVALVE FITTEO
(NOTSUPPUED WITH BOILER)
__..
l1
t
Return from
cylin der
I
8'.1
I
J
I
t
Retum fi'Om
c ontro l hHtl"'f
SYSTEM MAI< E UP
L J
I l
LJ
I L
• AI syst"" ~ . tapa and nirring
YaNes must be~ of ... taining a
pressu'e up to 3 bar .
• Radiator YaNes sho<Jid CO<rlorm to
652767: 10 .
• AllotherwiYes should confcrm to BS 1010 .
• On new installations TRVamust be ueed on
all radiators except where a room thermoetat
is sited. On all installationa theyahould 11
least be fitted in the aleeping 01eas. See note
below on open radiator/bypass
• A dra in cockisrequired at the lo w es t point
on the sy s tem.
• All air vent is r equi r ed at the highest pointon
the system.
Sand YPLAN SYSTEM :
• NBThe boller Is fitted with tts own lntemal
bype$$.
A Oi verter Va tv e
B Radiator V atve {Flow)
C look shield Valve (Re tu m}
• NB A drain oock should be fitted •t tho
l owest po i nt of the heating ci rc uit and
beneath the appliance.
OPTIONALINTERNAL D IVERTER VAI.\IE :
This boiler is d esigned to operate on a aealod
system only. The boiler will require 1 second
retum pipe from the w•1er cyinder 10 the wall
mounting ha.me and terminate in 1Snm copper
~
• The CH sealed syst.., must be filed using 1
WRASapproved filing loop 0< con.,ty with
tire diagramoppositefor oystem Iii .
• Where the system vobne ie mote than 100
litres or eXICeeds 2..65 bet at muimum
heating te..,.,aQBe. an elltra ._;on
""saef (B) must be llted as dose • poo1ible
to the appliMoe in thecontrol healing r .. um.
• Press<Jrise theextra expansion vessel (B) to
the same figW"e as the eq)ansion vessel built
in to t he appliance.
• Do not usegalvanised pipes or radiator s.
..... - ...
' ·,
' A '
• •
• •
'.. ·'
.. _ .. ,
-•
•
•
•
•
•
•
• ••
1., ., I
.'
•B ~
o I
I I
.'
'v
•
•
•
WA TER SYSTE MS& PIPEWOR K

Internal si nk / wash ing mach i ne dra in.
A
•
l't+-- --.
100 mm
lrin.
7!5mm_J
min.
Soil and vent stKk.
A
•
II
/
c ....
A
c
l
I
~
/
,:'
E
r 460mm
trirl. up to
3stor ey5
'
A ·Condensate from b<M ier si phon /t rap .
8 ·Sink wi th integral overflow.
C · Plastic oondensate pi pe.
0 ·Extemal dr ain or gu1 ty.
E ·lntemal soil and ventatac k..
F •S ervi<:a ble condeosate trap {75mm min).
CONDENSATE PIPEWORK
Internal waste
c l
External drai nage system.
A
•
Jl
l
/
'
•
c/,/
0
.I
Hf
G · 300mm x 1 00 mm dia. sealedp1astic tl.be.
H ·Gro und level.
J·Drainage ho l es facingaway from buil<fllg.
K ·Limestone chi ppings .
l · Weath&r resistant insulation.
CONDENSATE PIPEWORK
CONDEN SAT EPIP EWO RK:
• The condensate pipe must be a minimum of
22mm 0 pl as tic pi pe.
• Pipe wot k length should be kept to a mint-
mum and the ro ute as vertical as pos sibl e.
• Where pi pe work cou ld bB subject&d to
extreme cold or wi nd ctlfll a w&ath$rproof
i: n sutatio n shou ld be used. Alternatively the
con densate pi pework co u ld bB inc reased in
size to a min im um 32m m 0 without the
requirement to insulate.
• The pip ew o rk must fol lo w one of the op tions
shown oppos,itc. Either into an intcma l
servi cea b le trap {min. 75 mm) such as a
sink/ washing maehin (l wast~ . d~cha.rg0
d irect i nto a vent staok {E) 450mm min.
above pipe invert, or into a gu lley (0 ) below
g rou nd but above the water l eve t
IMPORTANT: Ensure th ere are no
blockages in the pipe run.
1 l ntemal sink/wash i ng machine dra in
2 Internal waste drainage system
3 Soil/vent stac:k
4 External drainage system
5 External condensate absorption point
INStN..LNIOII & SERVICING lhSTRUCTICNS FORWORCESTat GREENSfAA 1 21 S,.llcf'l'l/241 SpkM
8716 117oe6.l{~
rwoRCESTER

~ORCESTER
8osc:tlGtcKip
M
L
0
N
IHSf/lt.ViflON 6 SE IMON G ltiSTRVCTlONS FO R WORCESTE RG AttNStNI I 21 S,~ ~lc!ll
8716 11 205 5a(C4105}
PRESSURE RELIEF PIPEWORK
PRESSURE R EL IE FP IP EWOR K:
IMPORTANT: The pressure re lief valve
is a safety device for the bo iler and rt
activated may discharge boiling water
steam through the re lief valve drain
pipe .
Ca re should be taken when siiing the
out l et pipe so that jt does not c:ause an
obstruction or discharge above a
w indow. entrance or other public access
where It could cause a hazard.
• The pressure rel iefdrain pipe (M) from the
boil er should be at least 16mm diameter
c:oppe rpipe and run downwards away from
any electrics oro ther h azard ,preferably to an
external drain or soakaway.
P;pe (M) s ho ul d be fin;, hed with s port;sl
bend, near the outfet to face the extetnal wall
(as shown) to help prevent haza rd.
L •Outside wan
O,M • Dr ain pipe
N • Ext&rnal drain
PRESSURE RELIEF PtPEWORK

SERVICING CLEARANCES
VENTED COMPARTMENT
Using 1 OOm m fl:ue kit
1060mm
Using 1 25 mm flue ki t
• 1110mm
930mm
• 20mm
, to removable door
'600mm
, front c fe~ r.mce
, for service
VENTILATION FREE COMPARTMENTS
INSTALLATION CLEARANCES
4 10 mm
+ '
'
Smm
200mm
Ventilation Free Compartment Installation Clearances
The suggested total unventllated compartment minimum cl earances a.r e:
Side
Above
Below
Front (to removable door)
400mm 170mm approx . 20omm 10omm
(30mmabove
the elbow)
(Note: T op and bottom clearances m us t no t be reduc ed below these values as they are the
minimum required for servicing).
If Side Clearances are Reduced
If total side clearance Is Then overall
he igh t dear ances Ffont dun~nce <tor• mova bl•
red u ced to: m us t be Increased to (a,Pprox):
OR
door) mus t be i ACtea sed to :
••
•
35omm
44 1mm 129mm
300mm 523mm 161mm
i·
250mm 617mm
-
20Qmm
200mm 727mm 243mm
150mm 856mm
iI
II
295mm
100mm
1012mm 358mm
50mm 1202mm
II 434mm
If Front Clearance is Reduced
If front c:I Qr ance( to
Then ovo~ll height d •aran "s
Total side clearance mu st be
removabJe door ) Is must be increased to (epprox): OR i ncru se d to :
red u ced to:
• ••
SOmm 511mm
506mm
25mm 596mm 569mm
BOI LER LOCATION &
CLEARANCES
This boiler is ontysuitable f oc installing internally
wi th in a property at a su itable ~atOO onto a
f ixe d,r igid surface at l eas t the same size as the
boiler and capable of aupporting the boiler
weigh t.
COMPARTMENTS:
Follow the requirements of B$6798 and
B$ 5440 Part 2 and note:
• Mini mum clearances must be maintained
• All access door is required to iMt aJ J, seMce
~nd maintain the boiler and any anci l!i ary
equipment.
• If fitti ng the boi ler into an airing cup board
use a noll-combustib le perf orated material
(max:i m um hole si zea of 13mm) to separate
th e boi l er from the airing space.
BO ILER CLEARANCES:
The diag ram opposite shows the minimum
space r&qu i: red to install and servi ce the bo iler.
If a boi ler is installed in a compartment with
clearances less th an show n in the t ab l es oppo-
site, venti latOO is requi red . Refe r to tabl es
below f or venti la t io n requirements.
12 & 24 kW
Vent To room or Direct to
position Internal space
outside
H jg h Minimum free
M'mimu m
level area 122
cm' fr ee area
61 em'
low
Minimum frae Minim um
level area 122cm' free area
61c m1
BO ILER CLEARANCES· UNVENTILATED
COMPARTMENTS:
The ta bl es opposite s how the optio ns for the
m i: nimum space required to i: nstall and service
the bo il er i ns i de an unven ti lated comp a rt ment.
"'NOTE: Th ese are th e co mbined top & bottom
cl earances excluding the appliance.
••NOTE: These are the combined l eft & Aght
clearances excluding the appliance.
BOILER LOCATION & CLEARANCES I
NSW.LNlO N & SERVIC I ~ IH Sf R UCf~Ct>:S FOA WORC~ GREENSfAA 1 21 S,lk!fl'l/24!Sp kM
81 1G 112 Cl!ll!ol ( OVOO)

~ORCESTER
BoschGtcKip
600mm soomm
750mm
225 0mm
0
soomm
75 0mm
2250mm
600m m radius
IHSTIUATJON 6 SEIMONG ll<tSTRVCTIONS FOR WORCESTER GAttNStNI I 21 ~ ~ lc!ll
871611205!ia(04105}
BOILER LOCAnON &
CLEARANCES
BATHROOMS :
The bo iler can be in s ta lled tn zones <V or ®.
See lEE wiring regulations .
IMPORTANT : any switch or appl i ance
control using mainselectricity must not be
abfe to be touched by a person us ing the
bath or shower.
Electrical switches, fused spurand socket
outlets must not be situated In the
bathroom.
BOILER LOCATION & CLEARANCES

Flow22mm
() Ga s Supply (alternative f rom a bo ve appl iance) 22mm
PLUMB ING MANIFOLD
'l::
' '
' '
'
' '
' '
' '
' '
' '
' '
:
•
•
'
'
'
'
'
'
'
'
'
'
'
' -· '
Aow2 2mm l
ill &
Ma i ns Ga& Supp ly 22mm
PlUMB ING MANIFOLD
'
'
'
'
•
•
'
' '
, __ ,
Re t um 22 mm
A
CONNECTIO N S:
Heeti ng System: 22 mm comp ression fitti: ngs
Gas : 22mm compression fittings
Use the fitti ng s sup p l ~ in the lit/ Hardware
paclt.
Hthe boiler pi pes are to be run behi nd the
app lianoe ensure that the p ipes pass through
the$l ol in the yellowplasticguide (A). Thi.s is
frtted to the boi ler frame.
Further guidance on pi pe rout ing can be
found pr i nted on the bo i le r templa te
(supplied wHh the boiler).
IMPORTANT: IF RTT ING OPT IONAL
INTEGRAL DIVERTER VAL
VE
Disr ega rd this page and refer to the
correct version fo r installing t he integral
dl ve r ter valve In the ADDITIONAL
INFORMATION sec:lion at t he bac k of this
book .
1N5W..!Jll ON & SERVICING lhSf RUCfiC.NS FOR WORe~ GReENSfAA 1 21 S,l~i SpkM
811G 11201!56l~
rwoRCESTER

Minimum dimensions of flue terminal positions tor belanoed r oom sealed flue.s with
fanned draught:
ORWG . TERMINAl POSITION DISTANCE
REF:
A'
Directly beSow an openll"'g , 81r bnek, opening windows, etc.
300mm
B'
Above an openl-lg. 81r brick. opening v.oindow . etc. 300mrn
C' Horizoota ly to.., opening, oor bricJc. opening window , etc. 300mm
0 Below gunero.
soo1 pipeo ord ,..., pipeo 75f!'ln
E Below N\18&
200mm
p Below bolc:oMoor
c. port roof ( lowwt point) 200mm
G
From a .....aJ chin pope or 1011 pipe t50nm
H
l'lom inlemol or """'""' comer or ., a boordlry tlor9ldo f>e t .
300 ~ *
I -
g.-ound . roof or bllcony
300mm
J F
rom a su~ac:e or boundary toeing tl>e terminal 600~
K From a te rm i nal facing the terminal t
200mm
L' Fnm
an 01'"''''9 in lho cor port (o .g.door,whdow) iniO lho dwelling
t200m m
M Vertically f rom a term in al on the s ame wall 1500mm
N Horizontal ly from a terminal on the same waH
300mm
0
Fram a non combustiblovortical strvctvre on t t'wt roof *
p
Ab ove intetsection with the roo' *
0
Ad jaoenl to windows ond oponlnga on pitched or flat roo fs
600mm
R
EkJiow wi ndo ws or openings on pitchod roofs 2,000mm
FLUE TERMINAL POSITIONS
• The ftue muat bEl fi Hed and tenninalGd in
accordance with the reOOf'l'lmendationa of
85 5440 : Part 1.
• The ftue must not cause an ob struction.
• Discharge and any noise from the flue outlet
must not cause a n UISance .
• Aue gases
have a tendency to plu me and in
certain weather conditions awhite pkme of
condensation ... be dischalge<l lrom the flue
oulfel This could bo a .......,. , lot oxamplo.
,_ sec.riy lighM9-
• The air in leVoutlet duct ondthe temw>el ol
the boier must nol bo dooer than 25 mm10
arry oombustible material.
Oelailed reoommendaliono "" prol oclion ol
combustible materialsate QMW1 .,
85 5440 :1.
• A proteclive t9n'nil\al guard muat be fitted if
the termi l\al is 2m or leu above a au rf ace
to whdl pooplo havo accoso.
The guard must be spaced
equa lly { mi"l l mum
50mm} around the flue and fixed to the well
with plated screws.
See Contact In for mation {b ac k coYer) .
t In 'ddition, the term i NI should not be MJI.fftt t~n tSOmm (l,nned dr~ught)
to an opening in the buildi'ng fsbdc l01med for thepurpose of accommodating
a OO#Nn elementsuch M 11 window fram e.
T enninals ad j acent to wif'Kiows or openings on pitched
and flat roofs.
* See in structions supplied with verlkal flue l<its.
**Care should be Isleen to ensure terminalsi ting
does not cause a nuisance to •djacent properfie$.
0
•
The flue should not penetrate
the shadedarea.
a ··
•
•
::n.,ORCESTER II'CiTAU.AIION6 .Sli'Nic;INO INSllruC!'IONS
,Otlt WOAC:tstl:lt GAttNSTM I3 :S,.~ S,-
8 n• I12 Ofili•(O.IOCII
FLUE TERM I NAL POSIT IONS
l8osdt Gt'OQp

STANDARD FLUE HOR I ZO N TAL
./S,) CJ Cl =:::OlPP A
0100
MAX 686 Ax 1
MIN 260 Ax I'
0125
MAX 1070 A X 1
MIN 250 Ax 1•
• Requi res cutti ng
MAXIMUM FLUE HOR IZ ONTAL
_Q t:J ! IP A
0100 • 46 00mm
Ax 1 +Bx5
0125 • 13000mm
Ax1+Bx 13
B
~-- -- ····· ·· ... ······ ·· ···- ~
'
MAXIMUM FLUE VER TI CAL START+ 1 BEND
cO
0100 • 4600mm
Ax 1+ Cxl+Bx5+
Fx I
0125 · 13000mm
Ax 1 + Cxt + Bx 13
+ Fx 1
.• ........ -· ··· · ··· ·· ·· · ..!
/· ·· ··
MAXIMUM FLUE HORI ZONTAL+ 1 BEND
0100 • 2600mm
Ax 1 + Bx3+Cx1
0126 · IIOOOmm
Ax1+ Bxli+Cx l
FLUE OPTIONS
MAXIMUM FLUE VERT ICAL
START+ 2 BENDS A
FQ I II?
B
cO
0100 · 2600mm
Al( 1 +Cx2+ Bx4
+ Fx 1
0125 · IIOOOmm
A X 1 + C X 2 + 8 X 13
+ Fx 1
MAXIMUM FLUE VERnCAL
STAR T + 3 BENDS
0100 · NIA
0125 · 9000mm
Ax 1 + Cx3+ Bx11
+ Fx 1
MAX IMUM FLUE VERnCAL
WITH 2 x 45' BENDS
Ebi.
B
D (/
0100 · 4400 mm
{including terminal)
Bx5+ Dx2 + Ex 1
~
0125 · 13000mm "'- .-?
(i nc luding terminal)
Bx13+ OX2 +Ex1
VERTICAL FLUE WI TH
2 X 90' BENDS
E Q
B
co
0 1 00 · 2400mm
(including ter minal)
Bx 4+ Cx2+Ex 1
0125 · IIOOOm m
(mcluding terminal)
Bx 13+ Cx2+ Ex 1
·-
0--
h
'-.
""
FLUE OPTIONS
• Th& d i.ag r ~ma (opposite} show the
compo n ents used and tho maximum fl ue
leng th fOI each configuration of 100m m and
125mm flues.
• Shaded fl ue c:o m ponents ind ica te the
standard 100mm horizontal ftue .
• Only sttaight flue sect i ons can be reduced in
length and
cut .
• The fl ue terminal end can be fi tted from the
ir\& i de or outside of tha building.
• Faing kits am supplied with the fl ue extens ion
lOis .
• Horizontal 125mmand Vertical 100mm and
125m mfl ue kits are avai lable with separate
i n$tru ctions. Con tact your supptieror
Worcester.
A • Standard horizontal flue (1 00mm dia meter
shown)
B · Straight
fl ue extension
C •Rue bend 900
0 · A ue bend, 45°
E•Vertical terminal (vertical adapto r supp lied
with termina l)
F ·Verti cal adaptor (usad with horizontal
terminaO
Galoulating th& flu& l
ength:
Measure the total flue l ength required, noting
that the maxi mu m stiaight flue l engtb including
the terminal is:
Horizontal60/100mm: 4600mm
Hocizontai 801125mm: 1 3000mm
Vecticat 601100mm: 6400mm
Vert ical80/125mm: 15000nwn
Th en redu ce the tota l straight flue length f Or
each extra fl ue b1M1d (excluding the flue el bow)
by :
2000m m f or 90°
lOOOmm fOC" 45°
Fl ue Extension lengths:
Hocizontat & Vertical 60/lOOmm: 960mm
Hor izontal & Vertical 801125mm: 1000 mm
Fl ue Terminal lengths:
Hor izontat 60/100mm: 800mm ind...::i-lg tooninal
Horizontal 801125mm: 1200mm
Vetticaf 601100mm: 1140mm
to top of terminal
Vertical801125mm: 1365mm to top of terminal
INSW.VIlON & SERVICING lhSfiWCfltNS FOA WORC~ GREENSfAA \ 21 &,l~ SpkM
8 71 G 1120!!6.l(~
;WORCESTER

IMPORTANT: All the previous Pro - Installation scct1ons must be read
and requ~rem ents met before star11ng bo1lor or flue msta11a11on.
~ORCESTER
l8osdtG roup
{[ 2
0 E
c::J
0
!liGTAU.AIION6 ~ll!\llc;INO INS111UC:1'10NS 'Oit WO!ItCISli:R GAttNSTM I3 S.~ S,-
8 71 • I 1"2 Ofi-'•IJ>IIOGI
G
UNPACKI NG WALL FRAMEAND
ANCILLARY ITEMS
UFTlNG AND CARRYING PRECAU'IlONS :
• lift only a manaqeable w.,;gt>t , 0< ask for
help.
• When ifting 0< putt;ng lhW>gs dow11 ,bend
the knees . and kee p the bac k straight
and feet apart.
• Do not ift and twist altho same tmo.
• lift and canyobjects daM IO lhe body
A • S"-
B• Outercarton
C · Installer pacl<
D •Bottom panel
E • Wall mounting frame
F • Walle«ppate
G · Inner pacl<ag i ng
I MPORTA NTHAND LI NG IN STRUCTIONS
• It is advised that two people are used 10 ca ny
the carton from the van to the poin1 of delivery .
• On ce thecarton has been de livered, lhe ou ter
carton i$ removed fi rst Ca re ehould be taken
wh
en releasing the straps. If a sh arp implement
isused make sure the outer oartoo i.s not
pierced and that the implement is used
in such
a way so t hat it m ay n ot cause personal injury .
A ll sharpobjects must be CO'olerod orlheblade
retracted after use and put away in a e&fo
place.
The wall moon1ing frame , lnstaJ&er
pack, template end bottom panel are no w
remOYed. Care should be tal<en when ihing the
boiler hom lhe ....,. Md lhe propertechnique
lor sale lift;ng ol any 1\elNy object should be
strictly obse.-i
Additionol requirefne<lU for roo!space
-
• The boiler should be first unpacked before
ascenc!O>gladde< IO loft apace.
• Two sets o1 steps should be used.
• Two_.. should share the iffing ollho
boile< up to the loft hstch, wllero tho boolor it
entered in to tho loll space tilled and llid on ..
back into the loh.
Once lhe appliance ia removed from i ta
p ackag i ng check lhe contenta againat the
padcing isL
S. fo nt Installing applianceensure system Mt
been cl eaned as explain ed on page 8.
> 1. Remove st rops (A) and open the lop of t he
boiler packaging.
• 2. Remove template (F) and wall mounting
f rame { E) from the packagf ng.
> 3. Remove boiler bo«O<n panel (D) and
insta ll erpack (C).
UNPACKING WA LL FRAME AND
ANCILLARY ITEMS

X4
USE APPROPRI AT E
AXI
NGSFOR
WEIGHTAND
WALL
TY PE
WALL MOUNTING PLATE FLUE OP ENING
•
•
\ \
•
' .
.. .
• •
.\
B
.. '
.. '
\ \ I · ''
l I I r
l I I , '
\1 I ,'
\ I I '
·-
®
-
-
WALL MOUNTING T EM PLATE
FLUE OPE
NING
CAu::or, rw,:ur":' ·he·e are rw IJIP '='-'=·
c •--' '~ ;1 · c c::abl'--':~ CdT'IP :Jrccf u.:: u r:~c:~ ~r
c_:,~her h.JZ ; rdt. b•/ore driiii'':-J
SAFETY:
AD rel eva nt safety precautions must be undertaken.
Protective clothing, footwea r, gtQves end satety
gogg les must be wom as appropriate.
FIXING THE MOUNT IN G F RAME:
• The boilertemplate shows the rela.t~
posit i ons of the flue and the t op and bo Hom
fi xing of the mounti ng frame.
• FiK t ho t em pl ate to the wall in the desi:red
position W.
• Drill 4 hoi-as f ot thewalt mounting fr amG
t hr ough lho lo mp l<lto (2).
NOT E: The template has been siz&d to all ow for
minimum clear ances of 5mmsides, 200mm
base and 30mm above a 0100mm flue elbow .
REAR F LU EOUTL ET
• Th edrawi ng (B)opposite shows the boiler
te mplate with the fl ue centre lines of both the
10 0 mm and 1 25mm fi ve systems.
• Mar k centrel in e of f lue to be used (1) the
extemal diametefof the ho le can also be
marked arequired.
• Ha 0100mm diameter flue is to be used,
a 12 5mmdiam eta r hole is required. However, if
us ing the weathersealing col fa r by pushi ng it
th rough fr om inside th e pr operty, then a
15 0mm diameter holeis required to
accommodate this.
• The terminal section of the 1 00mm flue has an
inbuill 3• angl•.
Hextensions are to be added then the com plete
fl ue must ri se at an angleof 3°.
• The 125 mm 0 flue system wi!J requi te the flue
to rise at an angle of 3" .
• Drill ho le us ing a core driUor slm i lru .
SIDE OU TLET :
• Mar k from the cen tr e rtne of the wau template
to the w~l wh ich the fl ue wilt pa$$ through (3).
• Allow for a rise of 52mm per me tre length of
flue, to give a 3° ang le.
• Cfearanydebris fro m the site.
• A pre-filling kit 7 716 192
282 isavailable for
lns t a1l atioos where t he boiler wiU no t be fitted
immediately
to th e heating system. T tis allows
the heat i: ng system and mains water co nr lec·
tions to be filled and checked pt i or to bo i ler
ins tallation.
This
ki t can be used in con junction with the
opt ional fiilting l oop 7 716192 2 81(no t su p·
pl i ed with the boiler.