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...
..
....
..
...
..
.........
..
.........
..
.......
..
.........
..
...
..
....
..
...
..
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..
I
Co
nsum
er
Guarantee Card
....
..
....
.
....
..
....
.
....
..
....
.
....
..
....
.
....
....
.
....
..
....
.
....
..
....
.
....
....
!
Sea
lin
g Pack
..
............................
..........
.
....
.
.....
.
....
.
.....
.
....
................................
.........
1
Compression Nut
22
mm
..
...
..
.........
..
.........
..
...
..
....
..
.......
..
...
..
....
..
...
..
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...
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..
3
Compression Ring 22mm .
....
..
....
.
....
.
....
..
....
.
....
..
....
.
........
.
....
..
....
.
....
..
....
.
....
..
....
3
Co
mpression Nut 15mm............................................
..
......................................1
Compression Ring 15mm .
..
...
..
....
..
...
..
....
..
...
..
....
..
...
......
...
..
....
..
...
..
.........
..
.........
!
Fi
bre
Wash
er 23.9 x
17
.2x
1.5
...
..
...
..
...
..
....
..
...
..
....
..
.......
..
...
..
....
..
...
..
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..
...
..
....
.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
