Protherm Panther 24 KOV Operating Instructions Manual - page 13
13
Safety valve
The boiler is equipped with a safety valve
with an opening pressure 3 bar. DO NOT
TOUCH THE SAFETY VALVE! If the safety
valve starts releasing heating water, always
turn the boiler off, disconnect if from power
supply and call an authorised service. If the
heating system repeatedly looses pressu-
re, consult your service organisation.
Service and maintenance
Important:
All the mentioned electronic
protection functions are enabled only
when the boiler is connected to power
supply (the power cord plug is inserted
into a power socket and the main switch is
in the ON position (I).
Toping up water to the heating
system
Water to the heating system (in small quan-
tities) can be topped up through the boiler’s
top-up valve (Fig. 5).
When topping up water, the following con-
ditions must be met:
1. Pressure of the water being supplied to
the boiler must be always higher than the
pressure of the water inside the heating
system.
2. When toping up water, the boiler must
be cold (water temperature must not be
higher than 30˚C).
3. Recommended water pressure inside the
cold boiler (temperature not more than
30˚C) is 1.2 to 2 bar.
Important:
If the pressure in water mains
is lower or equal to the pressure of the wa-
ter inside the heating system, the heating
water may run into the water mains, which
is forbidden. This danger is reduced by a
built-in reverse valve installed behind the
top-up valve.
However, the manufacturer disclaims re-
sponsibility for any damages caused by
incorrect manipulation with the top-up valve
and a failure to abide by the conditions spe-
cifi ed above. Such damages and defects
are not covered by the boiler’s warranty.
Procedure of topping up heating water to
the boiler:
• make sure that the boiler is connected to
power supply and the main switch is in
the ON position (I);
• if the display on the boiler’s control panel
indicates that the heating water pressure
is below 0.6 bar, the LED underneath the
symbol lights up and error code F0
appears on the display;
• turn-open the blue top-up valve (Fig. 5)
with your hand and watch the pressure
increase on the control panel display (to
see the pressure value on the display, you
must press the MODE button);
• when the pressure has reached the requi-
red value, turn the top-up valve off with
your hand.
• bleed all radiators carefully (water must be
running out smoothly and continuously,
without any air bubbles);
• leave the automatic bleeding valve cap
open all the time (even when the boiler
is in operation);
• Check whether the pressure shown on the
display is within 1.2 and 2 bar. If neces-
sary, top up the system more.