I
I
0
,A
I
I
I
D
0
F
CJ
L
CJ
I
~\."
\
c
\
.o
o'/MU
\
COMMISSIONING
K
NOTE: When
running
in
the
central
heating
boost
mode,
the
boiler
will
operate both
the
central heating and
the
domestic
hot water circuits. This
is
to
allow
sufficient
time
for
this
part
of
the
commissioning
procedure. It
will
be
necessary
to
run
water
through
the
domestic
hot
water
cir-
cuit
to
ensure
that
the
boiler will not
cycle on
low
heating demands.
A ·
On/off
button
I
I
I
B
·On/off
and fault indicator (BLUE)
C · Central heating temperature control
D
·Burner
indicator
(GREEN)
E · Reset button
F
· Service button
G ·
DHW
temperature control
H ·
ECO
button
I·
System pressure gauge
J · Cover or optional programmer
with
intelligent functionality
K · Display
L · Central heating boost button
M
· Holiday button
COMMISSIONING
THE COMBUSTION FOR THE APPLIANCE
IS FACTORY
SET.
NO ADJUSTMENT IS
REQUIRED
IF THE
GAS INLET PRESSURE IS CORRECT.
CHECKING
GAS
INLET
PRESSURE:
The inlet pressure
to
the appliance must be
checked using the following procedure:
SETTING THE
BOILER
TO
MAXIMUM:
~
Press central heating
boost
button (L) for
ten
seconds
and set Central Heating tem·
perature
to
maximum.
• The central heating
boost
button will illumi·
nate continually.
MEASURING
THE
INLET
PRESSURE:
2
~
Slacken the
screw
in
the inlet pressure
test point and
connect
a manometer.
~
Measure the pressure with the boiler
running at maximum.
~
Check
the gas supply working pressure at
the
gas
valve inlet point:
N.G. minimum 18 mbar
L.P.G.
37
mbar
~
The gas rate should be measured at the
gas meter after
10 minutes operation at
maximum.
See technical data section at the
front
of
this manual.
~Ensure
inlet pressure is satisfactory with
all other
gas
appliances working.
~Replace
controls cover. NOTE: This boiler
is designed with a differential
of
2o•c
across the heating system.
IMPORTANT:
Do
not
continue
commissioning
until
the
correct
gas
inlet
pressure
is
achieved.
~
If pressure is satisfactory press the central
heating
boost
button
(L)
again and the boil·
er will return to normal operation.
• If left
in
the central heating boost mode the
control will return to normal operation after
15
minutes.
~
Re·seal the
screw
in
the gas inlet pressure
test point.
DOMESTIC
HOT
WATER:
Controlling
the
hot
water
temperature
~
The hot water temperature can be set
to
between approximately
40°C
and
60°C
using the temperature control (G).
DOMESTIC
HOT
WATER PRE·HEAT:
Pre·heat reduces the time taken
to
produce
hot
water at the
tap
and is controlled by the
ECO
button (H).
~
Press the
ECO
button
to
select either:
When
the
ECO
button is
not
illuminated
the
boiler
will
be
in
pre·heat
mode
(which
will
reduce the time taken
to
produce
hot water at
the tap).
OR
When
the
ECO
button
is
illuminated
the boiler
will
be
in
Economy
mode
with
pre·heat
no
longer active.
INSTALLATION & SERVICING INSTRUCTIONS
FOR
WORCESTER BOSCH GREENSTAR
25CDI/30CDI/37CDI/42
co;
~ORCESTER
6 720
613
700a
(2006/11)
Bosch Group
To Next Page
Loading...
