Fuel; Start-Up And Maintenance; Checking The Heating Water - Windhager VarioWIN Operating Manual

Important information for system operators
1.2

Fuel

The boilers are designed to burn the following fuels:
Pellets according to ÖNORM M7135 and DIN plus .
Significant criteria based on the standards are as follows:
Diameter 6 mm
Smooth surface
Residual moisture content max. 10%
Ash content max. 0.5%
Chemical/synthetic binding agents are strictly prohibited No impurities from varnish or paint residues, etc.
The pellets must be stored in a dry place so that they can be transported without problems and in order to
achieve trouble-free operation with optimum combustion and at maximum efficiency.
1.3

Start-up and maintenance

Have Windhager Customer Service or one of our customer service PARTNERS put your new boiler into servi-
ce. In this way, all functions of the new unit will be thoroughly checked; you will also benefit from the detailed
information provided by the system installer. Installation by a qualified technician as well as the maintenance
required by the guarantee limitations will guarantee the optimal use and service life of your boiler system. This
is the only way to assure the benefits of this technologically advanced boiler and guarantee safe, environmentally
friendly and energy-saving system operation.
The following preconditions must be met before you order the initial start-up:
1.) Boiler installed correctly.
2.) System fully wired up electrically.
3.) System rinsed, filled and vented – heat consumption must be possible.
4.) Boiler connected to domestic water and filled.
5.) Sufficient quantity of fuel available (pellets, split logs, oil or gas).
6.) The customer must be present during start-up.
The initial start-up cannot be carried out if any of these points are neglected. The customer will be charged for
any unnecessary costs arising as a result.
Start-up and maintenance are part of the guarantee requirements as listed in the enclosed „guarantee limita-
tions" .
Note: During the first few weeks after start-up, condensation can occur in the combustion chamber, on the hea-
ting surfaces and in the ash pan. This has no effect on the function and service life of the boiler.
1.4

Checking the heating water

The chemical composition of the heating water must meet the specifications of ÖNORM H 5195 Part 1 or VDI
2035 T1. According to ÖNORM M 5195 Part 1, the condition of the heating water must be checked every 2 years
by a heating technician in order to avoid corrosion and sediment accumulation in the heating system.
The check must be performed once every year in heating systems with more than 1500 litres of heating water.
In the event of repair work requiring a change of water in the heating system, the heating water is to be checked
within 4 to 6 weeks after such work.
Corrosion and sediment resulting from improper heating water are not covered by the guarantee and warranty.
Length 80% between 15 – 30 mm
Density at least 1.1 kg/dm
Energy content min. 18 MJ/kg = 5 kWh/kg
(in water-free condition)
Abraded particles max. 2.3%
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