MCZ Swing HYDRO - Manual (Page 36)

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5-HYDRAULIC CONNECTION
CLEANING THE SYSTEM
It is mandatory for the connections to be easy to disconnect by way of unions with rotating connections.
Install suitable shutters to cut off the tubes from the heating system. Assembling the safety valve on the system is compulsory.
In order to protect the heating system from damage caused by corrosion, incrustation or deposit build-up, it is important to clean the
appliance before installation, using suitable products, in compliance with Standard UNI 8065 (water treatment of thermal plants for civil
use) .
The use of FERNOX PROTECTOR F1 (available at our authorised centres) product is recommended, this provides long-term protection of
heating systems against corrosion and calcium build-up. It prevents the corrosion of the metal parts of the appliance, i.e. the ferrous
metals, copper and copper and aluminium alloys. It also reduces the noise produced by the boiler. Refer to the instructions on the product.
Cleaning should be performed by a qualified technician.
We also recommend the use of FERNOX CLEANER F3 and LEAK SEALER F4, always available from our authorised distribution centres.
FERNOX F3 is a neutral product for rapid and efficient cleaning of heating appliances. It has been designed to eliminate residues, oily
deposits and incrustations from existing appliances of all ages. It can help restore the heating efficiency of the boiler and reduce the noise
it generates.
FERNOX F4 is intended to be used with all heating appliances to seal micro fractures that cause small and inaccessible leaks.
Attention: Failure to clean the thermal system or to use an adequate inhibitor will invalidate the warranty of the
appliance and of the other accessories like the pump and valves.
FILLING THE SYSTEM
To fill the system, use the designated loading valve in the hydraulic unit. During this operation, any air in the system is released from the
automatic vent valve located under the top.
To ensure the valve vents, it is advisable to loosen the grey cap one turn and leave the red cap blocked (see figure). The filling pressure
of the system WHEN COLD must be 1 bar. During operation, if the system pressure drops (due to evaporation of dissolved gases in the
water) to values lower than the minimum indicated above, the user must use the filling tap to bring the pressure back up to its normal
pressure.
For proper operation of the stove WHEN HOT, the pressure in the boiler must be 1.5 bar.
Upon completion of this operation, always close the tap.
VENT VALVE UNDER THE TOP