Protherm Panther 24 KOV Operating Instructions Manual - page 28
28
Filling up the heating system with
water
• Make sure that the boiler gas supply valve
is closed.
• Unscrew the automatic bleeding valve cap
situated on the pump.
• Check and adjust the expansion vessel
pressure according to the prescribed
static pressure in the system.
• Connect the boiler to power supply.
• Turn the main switch (Fig. 1) to the ON
(I) position; about 20 seconds after tur-
ning the switch to the ON position, the
boiler will shut down, error code F0 will
appear on the control panel display and
the LED underneath the symbol will
start fl ashing.
• Display orientation values of the heating
water system pressure by pressing the
MODE button once (see the Pressure
display mode on page 5.
• Open the heating system top-up valve and
at the same time watch on the display the
boiler pressure rising.
• Fill up the system with water, the pressure
should be within the range 1.2 – 2 bar.
• Bleed all radiators carefully (water must
run smoothly without any air bubbles).
• Leave the automatic bleeding valve cap
unscrewed (even while the boiler is
running).
• Make sure that the pressure shown on the
display is within the range 1.2 – 2 bar. If
necessary pressure the system up.
• Open hot water taps to bleed the hot water
circuit.
Important: If the pressure inside the boiler
is not at least 0.6 bar, the boiler will not
start up. If while the boiler is running the
pressure inside the boiler drops below 0.6
bar, the protection system will shut the
boiler down and the error code F0 will ap-
pear on the display. If the pressure indica-
tor LED is fl ashing, it means that water
pressure inside the boiler has dropped
below the optimum value, and the pressu-
re inside the heating water system must
be adjusted
Draining water from the boiler
The draining valve’s main function is to
relieve water pressure in the boiler during
repairs (Fig. 16). Water from the boiler can
be drained using this valve only partially.
Complete draining of water either from
the boiler only or from the whole heating
system and refi lling it again must be done
through a fi ll-up (discharge) point situated
in a suitable location in the heating sys-
tem.
Draining and fi lling up heating system water
and the follow-up operations (bleeding, ad-
justing expansion vessel) are not covered
by the boiler’s warranty.
If there is a danger that the hot water
system water inside the boiler or the
distribution pipes may freeze, measures
must be implemented to prevent this from
happening.
Fig. 16