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7.2
Operation
1.
After reaching the heat water temperature the burning air input to be adjusted. The boiler power in rough limits is regulated with a chimney
draught change with a help of the smoky flap in the chimney – pot. Smooth power regulation is performed by a stifling by which the air
output under the grate is regulated, either manually or with a help of draught controller. The draught controller to be adjusted so as the
stifling in the ash door is almost closed at the time when the heat water required temperature is reached.
2.
According to heat needs and burning intensity the boiler is needed to be supplied with fuel during the operation. Feeding the fire so as the
fuel layout was equally high along the entire boiler depth.
3.
When using the anthracite it is necessary the air rose of the secondary air input in the stoker hole to be partly opened for the whole time of
the build – up of gases and flames out of freshly fed fuel (the air rose of the secondary air input with regard to the surface temperature is
necessary to be controlled with an instrument.
4.
At change over to night still operation the grate to be cleaned out, the freshly fuel to be let well burnt up and then the boiler power to be
suppressed by throttling of the chimney draught with chimney flap in the chimney – pot and by turning down the air rose of the secondary
air input. The smoky flap and air rose opening level is necessary to be tried out, it is always necessary to make sure that the product of
consumption did not get away to the boiler room. In this case the draught controller to be disconnected.
5.
The morning boiler operation reconditioning to be performed by opening of the smoky flap and air rose and with grate raking after opening
the ash door.
6.
The ash door must be during the operation permanently closed.
7.
The ashtray to be emptied according to needs (gloves need to be used).
8
Maintenance
1.
The ash from the ashtray to be emptied during the operation of the boiler even several times per day according to the sort of used fuel
because a full ashtray hampers the right distribution of the burning air under the fuel and causes unequal burning process of fuel on the
grate. All remains in the firebox especially the clinker are removed before each new burning up and at morning boiler operation
reconditioning. The ash is needed to be put away into the fire – resistant tanks with a cover. It is necessary to use protective
facilitations and to pay attention to personal safety while operating.
2.
The boiler walls inside the firebox, smoky boiler draughts and smoky chimney – pot to be cleaned 1x per month if heating with coke. The
cleaning to be performed 1x per week when heating with anthracite.
3.
If there is a settlement of tar silt on the walls of the burning space while using fuels with higher gas build – up it can be removed with a
scraper or by burning out with a help of dry wood (eventually coke) when setting the boiler to the maximum operating temperature.
9
IMPORTANT NOTICE
1.
The boiler VIADRUS U 22 is not intended for the Czech market.
2.
The boiler only can be used for the purpose that it is destined for.
3.
The boiler must be operated only by adults who are introduced to these operating instructions. It is unallowable to let children at
the boiler unattended of adults. Interventions into the boiler design that could threaten the health of the operating staff,
eventually the inmates, are disallowed.
4.
The boiler is not destined for the use by persons (incl. children) whose physical, sensual or mental disability or lack of
experience and knowledge prevent them from a safe use of the appliance unless they are supervised or if they were not
instructed on the use of appliance by a person responsible for their safety.
5.
Children should be supervised in order to ensure that they do not play with the appliance.
6.
If there is a risk of rise and getting away of flammable steams or gas into the boiler room or at operations by which there is an
intermediate risk of fire or blast (sticking of floor coverings, paintings with flammable colours), the boiler must be disabled from
operation before the beginning of operations.
7.
Using of flammable liquids is DISALLOWED for firing the boiler.
8.
It is DISALLOWED to overheat the boiler during its operation.
9.
Objects of flammable materials must not be put on the boiler and to a distance smaller than that of a safety distance from it
10. Flammable materials must not be in the minimal distance of 1500 mm from the boiler when emptying the ash at the boiler.
11. The space at the point of choking valve rotation of the ashtray door must be cleaned in case of clogging with fuel, ashes or other
impurities in order to avoid its rubbing thus wrong functioning.
12. When the boiler operates at a lower temperature than of 60 °C the retting, or the so called low – temperature rust, of the boiler
drum may occur that reduces the operating life of the boiler drum. Therefore we recommend to operate the boiler at a
temperature of 60 °C or higher.
13. After finishing of the heating period it is necessary to properly clean the boiler, smoke stack and chimney – pot. The fulcrum pin,
smoky flap mechanism and other movable parts to be covered with graphite grease. And the boiler room to be kept clean and
dry.
14. In case the heating system is not daily used in winter season, then the water from boiler must be drained.
15. It is necessary to install a safety valve for maximum overpressure of 400 kPa (4 bar) on the system and its dimension must
correspond to the rated boiler output. The safety valve must be located directly behind the boiler. Any stop valve must not be
located between the safety valve and boiler. If you have any questions, please contact our contractual assembly firm and service
organizations.
16. During assembly, installation and operation of the appliance it is necessary to comply with standards that apply in the relevant
country of destination.
If you fail to meet these conditions you cannot requisite the guarantee repairs.
