MCZ Vivo 80 Pellet HYDRO - Manual (Page 38)

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6 - HYDRAULIC CONNECTION
SYSTEM FILLING
To load the heating system use the predisposed loading tap in the main boiler. During this operation, any air in the system is released via
the air valve located in the upper part of the product.
To allow the valve to release air it is recommended to loosen the screw on the valve itself (see figure). The filling pressure of the system
WHEN COLD must be 1 bar. If during operation the system pressure drops (due to evaporation of gases dissolved in the water) to values
lower than the minimum ones indicated above, the user must use the filling tap to bring the pressure back up to its initial pressure.
For proper operation of the stove WHEN HOT, the pressure in the boiler must be 1.5 bar.
Upon completion of this filling operation, always close the tap.
Attention: do not mix the heating water with antifreeze or corrosion substances in the wrong concentrations. It can
damage the seals and cause the onset of noise during operation.
MANUAL AIR VALVE.