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Worcester Highflow 4.5 OF Installation And Servicing Instruction page 11

Floor standing combination boiler for central heating and mains fed domestic hot water

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Fig. 10. Functional flow diagram-Hot water mode.
SUPPLY l
240V~
50 Hz
FUSE
be
3A
DHW HIGH LIMIT
THERMOSTAT
- - - - - - -
OPERATING SWITCH
'
'
'
114 :
hi
TL
1
be
m
ROOM THERMOSTAT
hi
~
PUMP DELAY TIMER BOARD
hi
I
eLu
'
' "
CENTRAL HEATING PUMP
IL,
T10
e
be
bl
hi
7J
be
m
'
r - - -
-----------------------
'
I
e
L_-
'
w
\\
~!
'
T2
g T J
m
' g
. J'
T12 : W
w
:
~
e
pk
.
-~
l
DOMESTIC HOT WATER
CONTROL THERMOSTAT
- - - - - - - - - -
PROGRAMMER IIF FITTED)
'
T9
I
~
f-.
::.(9=~
DOMESTIC HOT WATER
pk HIGH LIMIT THERMOSTAT
T4
lbk
T5
bt
......
T7
g
be
bl
v~
I
f,A\ IOLfNOIO CENTRAL
H[ATI~G
bl
I
~J\!V
bl
CONTROL RELAY
I
I
1\IJPO~[S\OF~
r
,.
hv
T8
I
9
~
bt
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V\
bl
,.
w
I
~'''["TING
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p
w
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4l
10
I
J-
w
11
7 . .
lE~ T~AL
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T6
be
bl
N
N
N
N
N
N
N
.~
y
ru:
~
hk
~12
8
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.
..::..
w
m:
'
be
e
- - - - - -
- - - _j
COL OUR CODE
hi
BLUE
bk BLACK
br BROWN
y
YELLOW
pk
DOMESTIC HOT WATER PUMP
bt
pk PINK
or
ORANGE
VIOLET
w WHITE
T13
""
I
pk
r
RED
g y GREEN YELLOW
GREY
PURPlE
GAS
SOIE~OID
DOMES! C HU. w•HR
hi
bl
~
N
N
Fig. 11. Functional flow diagram-Central heating mode.
SUPPLY
240V-
L
50 Hz
-
FUSE
bt
TL
3A
DHW HIGH LIMIT
~~
THERMOSTAT
i
oPe-RATING
sw,TcH - - :
I •
I
bt
~-.t
T~
:
bl
ROOM THERMOSTAT
~:
br
r-----
w
'
T2
+
*
lJ
T3
g
T\1 '
g
-
Ill
T12 ; W
~
Jj
'1:
rl"k
'
I
"'
-
- - - - -
_ _ _ _j
l
DOMESTIC HOT WATER
CONTROL THERMOSTAT
- - - - - -
- -
PROGRAMMER
IIF
FITTED I
'
I
I-f-
DOMESTIC HOT WATER
hi
PUMP DELAY TIMER BOARD
hi
.,
.
-~
~
• Ls
CENTRAL HEATING PUMP
T
'
T10
be
bl
m
bl
__________________________
.,....
g
T7
lu
bl
--~
~,A>
\Cl!NOIC C!NlRAl H!
4TI~G
bl
~v"
l
bl
CONTROL RELAY
louPPR!'i\00~
1 . .
I.!.
se
I
T8
bt
bl
9
e-vv--e
,
..
UJ
DIVfRliNG;~·.y[
p
w
6•
T9
10
.~J
w
3
. .
i
~
~~
ck
HIGH LIMIT THERMOSTAT
11
J.
nm
CE~TR4lH!ATING
• . : - .
g
Tll:
.
..::...
w
T12 :
'
bt
i
- - - - - - -
______
_)
'--
co
LOUR CODE
bl
BlUE
bk
BLACK
br BROWN
v
YELLOW
T4
lbk~
/
bk
pk
DOMESTIC HOT WATER PUMP
bt
pk
PINK
or ORANGE.
VIOLET
w WHITE
be
~
12
8
l T ! L ,
n~f
pk
r
REO
g y GREEN·YELLOW
11
CIINTR-JllH!RMOSW
T6
"'
Vv
I
-.
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I
GAl S01
f~OI~
00'.'(\TI( ><01
WAHR
GREY
PURPLE
bl
bl
bl
~
~
----
N
N
N
N
N
N
N
N
N
N

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