PELLET BURNING STOVES INSTALLATION & MAINTENANCE MANUAL
14
Always install the heater upstream of the valve gate,to isolate the same water system or move it, if necessary, to
perform routine maintenance (or extraordinary maintenance) .Connect the heater hoses for not using
the over pressure constrain the stove to allow the stove to lower the pressure. The pressure relief =valve (C) must
always be connected to a drain hose. The pipe must be suitable to withstand the high temperature and pressure.
3.3.2. Filling the water network
To fill the stove with water , the stove must be equipped with a tap (optional) with a non-return valve (D) in order
to manually fill the water network you can use the load tap already on the boiler of the stove .
During that operation, the outlet of any air in the system is guaranteed by the present automatic vent under
the top-panel. To guarantee that the valve discharges air,it is recommended to loosen the grey tap and leave the
red tap locked ( refer to picture below on the right ).
The filling pressure during cold status should be
1 bar.
If during operation of the system pressure drops (due to
evaporation of the gas dissolved in water) and the values are less
than the minimum indicated above, the user shall fill up the
system unitill the needed values are reached. For optimal
operation of the stove in operation (hot) , the boiler pressure must
be 1.5 bar. Do not exceed 2 bar. At the end of the filling of the
stove always close the filling tap.
3.3.3. Water characteristics
The characteristics of the water for filling the stove, are very
important to avoid the deposition of minerals and the creation of
deposits along the piping within the boiler and heat exchangers.
Therefore it is advised to check with your plumber/fitter the
following characteristics:
•Hardness of water. (> 25 °dh German) circulating in the system to remedy any
problems and limestone deposits especially in the hot water heat
exchanger• Installing a water softener (if the water hardness is. (> 25 °dh German)
•Fill the system with treated water
For those with very large systems (with large water content) or who require frequent replenishment of the plants in the plant
