Product Description - Buroit PyroBurn Alpha Series Technischer Datenblatt Montage- Und Bedienungsanleitung

Diagram 1. Recommended clearances
between the boiler and walls.
EN
For general safety considerations, we recommend
that the boiler be placed on a foundation with height
of 100 mm made of class A material, see table 1.
Combustibility of building materials
Class Stone, bricks, ceramic tiles, baked
А – non-
clay, solutions, plaster free of
combustible organic additives.
Gypsum board panels, basalt fiber
needled felt, fiberglass board,
Class B – hard
AKUMIN, Izomin, Rajolit, Lignos,
combustible
Velox, Heraklit.
Class С1/С2
Wood beech, oak
Medium
Wood softwood, layered wood
combustible
Class Asphalt, cardboard, cellulose, tar,
C3 – easy fiberboard,
combustible polyethylene.

2. PRODUCT DESCRIPTION

PyroBurn Alpha boilers are designed to burn solid
fuel – wood or wood briquettes class B on the
principle of wood gas generation using a fan. The
body of the boiler is manufactured as welded sheet-
steel structure. It comprises a loading chamber which
in its lower part is equipped with ceramic nozzle with
longitudinal slot through which passes the wood
gas produced. Below it is the combustion chamber
where the wood gas burns, lined with ceramic
refractory pieces. On the front, in the upper part of
the boiler is located the upper door for loading the
upper chamber with wood, and in the lower part is
the combustion chamber door. The upper chamber
houses a flue damper (opens and closes manually by
a lever mechanism located on the side of the door).
The boiler body is heat-insulated on the outside
with mineral wool inserted under the housing. A PID
controller is located in the upper part of the boiler.
• Design. Boiler body is made of high-quality
boiler steel sheets with thickness of 6 mm for the
combustion chamber and 4 mm for the water jacket.
The built-in refractory ceramic pieces help ensure
the uniform transfer of the heat produced to the
water jacket and protect the steel walls from the high
temperatures (up to 1200°С).
• Pyrolytic combustion. Wood in the loading
chamber burns (above 580°С) and releases wood gas
rich in carbon compounds. When combined with the
primary air it forms a burnable mixture and is then
routed to the nozzle in the combustion chamber. In
the nozzle the mixture is enriched with secondary air
and is self-ignited in order to reach the combustion
TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
Table 1
cork, polyurethane,
chamber at 1200°С. Before leaving the boiler body,
flue gases pass through flue pipes where they
lose their heat and cool down to 150°С. Pyrolytic
combustion helps achieve efficient wood burning
with minimum production of ash.
• Effective. Thanks to the pyrolytic principle of wood
burning, the boiler achieves efficiency of more than
90%. The water jacket envelops the entirety of the
combustion chamber in order to utilize maximum
amount of the heat produced. On the outside, the
boiler body is insulated by means of 50 mm layer of
mineral wool thermal insulation.
• Microprocessor PID controller for control. The
PyroBurn boiler has intuitive controls, adjustable
output and reliable safety mechanisms. The built-in
PID microprocessor controller monitors and controls
the burning process to achieve optimal, efficient and
eco- friendly operation. The controller is capable
of controlling the circulation pumps of the heating
installation and DHW installation. It has two main
modes of operation. When the Z-PID mode is active
(factory preset), the controller modulates the fan
output depending on the current temperature of the
boiler and the exhaust gas temperature according
to the maximum temperature setting for the boiler.
When the Z-PID mode is deactivated (selectable
by the installer upon customer's request), the
controller turns the draught fan on or off depending
on the temperature of the boiler and the maximum
temperature setting for the boiler.
The microprocessor control is able to control one
heating circuit and one DHW circuit through the
built-in terminals for connecting circulation pumps
and DHW sensor.
• Fuel loading door
• Cleaning door (combustion chamber)
• Air flaps for feed-in air adjustment
• STB – emergency thermostat
• Flue gas sensor
• Safety heat exchanger
• Flue damper
• Safety devices of the boiler
The boiler is equipped with 3 independent
overheating protections.
1. Upon reaching 95°С the control turns the fan off
and sounds a signal .
2. An independent STB thermostat shuts down the
fan upon reaching 99°С.
3. Emergency cooling coil integrated in the top
section of the water jacket allows the connection
of thermostatic valve.
4