TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
15-EN
boiler inlet must not be less than 65°C,
boiler water temperature at the outlet
must be between 75°C and 85°C.
- In order to increase the operational life
of the boiler it is recommended to install
a buffer vessel with capacity of 55 l per
1kW of installed power.
3. Due to freezing
3. If the heating installation, including
the piping network, has not been built
frost-proof, we recommend that you fill
the heating installation with a liquid
which has low freezing point and
corrosion protection and antifreeze
agent.
Output too low
1. Insufficient draught.
1. Check chimney condition and
measure draught. (must be performed
by an authorized service)
2. The heating capacity of the fuel is too
low (not sufficient).
2. Make sure you are using dry fuel.
When using fuels with high percent
humidity it is possible that the boiler
works for a certain period after refilling
with reduced power capacity while the
fuel dries enough.
3. Presence of deposits of soot and / or
tar in fume exhaust tubes of the water
jacket of the boiler.
3. Open the upper door and clean the
heating surface of the exhaust tubes by
using the brush from the set that
accompanies the boiler. After cleaning,
remove the soot that might fall in the
combustion chamber.
Boiler water too hot, heating bodies too cold
1. Hydraulic resistance is too high
2. Air in the system
3. Inoperable circulation pump
Make sure the circulation pump has
been properly selected and the heating
installation is of the proper dimensions.
(You must contact your installer.)
Boiler temperature too high. Controller failure.
1. Power grid fluctuations
2. Power failure
It is mandatory to assure a backup
power generator of corresponding
rated power! (see 12.2)
