by the unsealed cleaning hatch. After firing the fuel, the upper chamber cleaning hatch should be
tightly closed.
Details of the controller modes and its parameter settings can be found in the manual instruction of
the boiler controller.
To light a fire in the boiler do not use: gasoline, alcohol, solvents or any other light-up fuels
(e.g. for barbecue) in liquid form!
7.2 Maintaining fire in the boiler
After firing the fuel and entering into operating mode, the boiler controller automatically adjusts the
boiler operation based on user parameter settings and/or measurements of temperature sensors. Due
to that the device achieves high efficiency within the entire power range. Any disruption of boiler
operation should be immediately reported to the Service Partner providing messages that appear on
the display.
All flaps and inspection door must be strictly closed during operation of the boiler!
During boiler operation, depending on the needs and intensity of combustion, the fuel in the upper
combustion chamber should be regularly refilled. Fuel must be added to the furnace when the
previous fuel portion has burned almost to the phase of embers. Before opening the upper chamber
door, use the control switch to change into manual control mode and turn on the exhaust fan, then
check that the exhaust fan is running. The door should be opened slowly to avoid turbulence of air
masses. Doing so will ensure optimum operation of a flue gas short circuit pocket and prevent
smoke escaping from the boiler to the boiler room. After adding a fresh portion of fuel, return to the
operating mode to enable the boiler controller to re-set the intensity of combustion.
The added fuel in the form of wood chips or logs of deciduous timber should be arranged in layers
so that the logs were directed along the depth of the loading chamber. Fuel must be laid in layers of
2 or 3 logs, as close as possible to the rear wall of the furnace, so that in case of log slipping they do
not adhere to the chamber door and were not able to fall down from the boiler when the chamber
door is open. Do not exceed the load of 12 to 14 logs in a single loading.
Holz Master Manual
wer. 22/05/2012/EN/V1.0
HKS LAZAR
str.15
