Mareli Systems CBM 45, Руководство по сборке и эксплуатации

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Mareli Systems
The automated pellet burner is a part of the system and may utilize the following types of fuel:
• Wooden pellets in 6 and 8 mm in size, class A;
The automated pellet burner is a compact module structure consisting of the following components:
•
Burning chamber, which provides conditions for optimal burning process and is manufactured of high
quality alloyed steel.
• Automated mechanical cleaning.
• Burning chamber grid, easy to dismount, allowing removal of ash residue.
• Full air duct, which ensures even supply of air for combustion and cooling the burner elements.
• Electric heater to spark the fuel.
• Fan supplying air for combustion.
• Photo sensor to monitor the combustion process.
Emergency temperature sensor to prevent from “backfire” in the pipe of the main pellet feeding module, which
automatically cuts off the fuel supply.
The equipment operation process is monitored by the controller. It controls the ignition and combustion pro-
cesses and they are monitored by the photo sensor and the temperature sensor. In case of two failed attempts
for ignition the burner shuts down.
A temperature sensor is installed in the burner to prevent reverse fuel combustion, (‘backfire’). In case of this,
the controller will shut down the burner, going to emergency mode.
In case of the above situation, unplug the controller from power supply, take all safety measures such as pre-
venting fire and thermal shock, then carefully clean the burner. It is advisable to call an authorized service
technician to establish whether the equipment is safe. There is a risk of thermostat damage and melting the
flexible pellet feeding tube. To prevent backfire, it should be checked if the burner is cleaned and if the settings
are proper.
If during operation the connector is removed or not well adjusted, the burner shuts down automatically.
The boiler consists of the following components:
• The heat exchanger is a welded construction made of steel sheet material. In the front lower part there
is a furnace chamber and underneath the ash container is placed. The heat exchanger is compact and
constructively based on a triple-motion principle, which enables an optimal heat exchange and high
efficiency;
• The ceramic elements mounted in the combustion chamber ensure an optimal burning process and a
complete combustion of the fuel;
• The ash tray is situated on the bottom of the combustion chamber. There the remaining ash is gathered
and it allows for easy cleaning of the device;
• The incoming and outgoing connector for feeding and the unloading water are situated in the rear part of
the boiler and represent two terminals with an outer thread G1½ through which the device is connected
to the heating system;
• The drainage hole is a terminal with a G1/2 thread upon which an unloading valve is to be mounted;
• The funnel (with an outer diameter of F145) is situated in the upper rear part of the boiler, and leads off
the smoke gasses through the chimney;
• The steel heat exchanger is isolated with mineral isolation which reduces the environmental thermal
losses;
• The outer decorative walls are made of steel sheet iron and are worked with a high quality colour layer;