9
OPERATION
0
I
C
o
C
o
VRC-VC
1
2
3
4
Fig. B.2: LED displays
Euro B/S 074/1
Initial checks before
turning ON
Open the service valves
●
Ensure the cold water service valve
is open. This can be checked by
opening a hot water tap and
ensuring water flows.
●
Ensure that the service valves in
the heating flow and return (
2
and
1
) and the gas service valve (
3
)
are open.
☞
The flow, return and gas
service valves are open when
the line marking has the same
direction as the pipe.
●
The pressure relief valve (
4
) is
provided for safety reasons and
must not be interfered with.
Note:
A bottom cover is fitted to the
appliance. The service valves can
be seen through the cover.
I
0
2
3
1
4
Fig. B.3: Opening service valves
Euro B/S 009/0GB
☞
picture shows a TURBOmax
Plus boiler
Indicator lights/boiler display
TURBOmax Plus and THERMOcompact
boilers have an advanced multi-
function boiler display (
1
). When the
main ON/OFF control is in the „ON“
position the display will normally
show the temperature of water in the
boiler circuit (45 °C in the example),
which confirms that the boiler is
functioning correctly.
1
In the unlikely event of a fault
developing which prevents the
boiler from operating, the display
may show a fault code (page 14).
2
Red indicator
Illuminated =
Boiler has locked out
3
Yellow indicator
Illuminated =
Main burner ignited
4 TURBOmax Plus
Green warmstart indicator (
3
)
Illuminated =
Warmstart switched
ON
Not illuminated =
Warmstart is
switched OFF and there is no
demand for hot water
Flashing =
There is either a
demand for hot water or
warmstart
4 THERMOcompact
Green indicator (
3
) is illuminated
but has no function.
Summary of Contents for TURBOmax Plus 824/2 E
Page 19: ...19...
