Worcester Greenstar 12i System Instruction Manual page 70
Wall hung rsf gas fired condensing boiler
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Also See for Greenstar 12i System:
- Instruction manual (76 pages) ,
- User manual (20 pages) ,
- Installation, commissioning and servicing instructions (72 pages)
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POWER
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UGHT
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ON
ON
3
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wait
Room
thermostat
0
N
(and/or
link
fitied
atSTl
O)
AND
CENTRAL
Fan
to
Facia
mounted
I+
HEATING
start
programmer ON
DEMAND
Sp<!Od.
AND
Temperature
oontrol
ON
Oiverter
valve
in
CH
position
Pump
ON
. - - - - - - ,
YES
LOCKOUT
Gas valve OFF.
Fan OW!r'l'un
30
seconds
IGNinON
GREEN
FlAME
SEQUENCE
-
(see
detail)
UGHT
ON
IGNITION SEQUENCE
Spark
ignition
4 seconds
t
NO
5th
atte"l't?
BURNER
UT?
J..,l'\
NO
Stop
spork.
Wait
10
seconds
Over temperature
shutw
down
if
water
tempera-
ture i.s
5°C
above set
value.
Fan
(&
gas)
1
0 second
modulation
to
achieve
1-
stabilisation
,...
set
.....
period.
temperature
(40-82"C)
YES
END OF
BOILER
DEMAND
Gas
valve
OFF
Pump
run
3
minutes
f
an run
30
seconds
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