Herz pelletfire, Руководство по эксплуатации

Страница: 10 / 96

4 Handling of the heating system
10 Betriebsanleitung_pelletfire_Touch_Englisch_V1.2
4 STARTING UP A COLD
SYSTEM
After a long period of not being used, you should
take particular note of the following points when
starting up the system:

Where the equipment has cooled down, the
boiler requires a proportionate amount of
time to reach temperature if all heat
consumers are switched on during the
heating up process. Therefore, firstly put only
one small heating circuit into operation and
only switch the other heating circuits on when
the
boiler has reached its operating
temperature. The first start-up should only be
carried out by HERZ factory customer service
or persons authorised as such.
5 HANDLING OF THE
HEATING SYSTEM
5.1 Sealing the boiler
It is imperative that all doors are closed during
operation so that no leak air can disrupt the
combustion process. If this is not observed then
damage to the boiler may result.
5.2 Operation with low
performance decrease
Should fuel be burned in the transition period
(spring or autumn) it is vital to ensure that for low
decreased performance (less than 50%) the filling
shaft is not completely put on. Decreased
performance of less than 50%, means the boiler
and the chimney may become clogged with soot.
It is also possible that smoke may develop in the
chimney. The firestar boiler should therefore
basically be operated equipped with a correctly
dimensioned buffer (according to EN 303-5).
Recommended dimensions are listed in the
document “installation instructions.
5.3 Overheating of the boiler
Should the boiler temperature exceed maximum
boiler temperature, the safety temperature limiter
switches the controls off and the warning light
illuminates. After the equipment has cooled off
under about 75°C, the Safety Temperature Limiter
(STL) should be tripped by unscrewing the
covering cap (press the knob). Then screw up the
covering cap again afterwards. Before re-starting
the cause of the overheating should be identified
and corrected.
Thermal flow protection
If the boiler overheats then the “thermal flow
protection” opens automatically (at 95°C) via a
sensor and cold water flows through the heat
exchanger. The boiler water is thereby cooled off
and
dangerous operating conditions are
prevented. The water heated up in the heat
exchanger must be able to run away freely
(directly into the waste water channel). After the
boiler water has cooled off to about 90°C the
"thermal flow safeguard” automatically interrupts
the cold water feed. After cooling off, the
equipment pressure and/or water level of the
equipment is to be controlled and if necessary the
missing amount of water topped up. According to
DIN 4751 sheet 2, the operator is obliged to
re
gulate the functioning of the “thermal flow
safeguard” and the heat exchanger belonging to it
at least once a month by activating the test button.
Furthermore this safety instruction is to be
monitored once a year by the manufacturing
company or another competent organisation.
Note:
Where there is a combined non-functioning of the
“thermal flow protection” and heat exchanger, the
set-up of the equipment is prohibited!
5.4 Sweating of the boiler
During long-term operation it should be
guaranteed that the return flow temperature does
not fall below 65°C. For this reason a return flow
temperature bypass is obligatory.
Note:
Corrosion damage caused by too low return flow
temperatures, do not come under the guarantee
or warranty claims.
5.5 Taking out of operation
The mains switch should not be turned to “OFF”
during the burn-off but only after complete burn-
off. (Status: unit off
(1) )