MCZ Vivo 85 Hydro, Installation Manual

Page: 38 / 76

V
36
6-HYDRAULIC CONNECTION
CLEANING THE SYSTEM
It is mandatory for the connections to be easy to disconnect by way of unions with rotating connections.
Always install cut-off shutters in the system leading to the product so as to disconnect it from the hydraulic system
should it be necessary to move or relocate it, to perform routine and/or special maintenance. Connect the product
with hoses to avoid overly-binding it to the system.
In order to protect the thermal system against harmful corrosion, scale or deposits, it is essential to clean the system in accordance with
standard UNI-CTI 8065 before installing the product, using appropriate products like Sentinel X300 (new systems), X400 and X800 (old
systems) or Fernox Cleaner F3.
Complete instructions are provided with the products but it is possible to contact the manufacturer SENTINEL PERFORMANCE SOLUTIONS
LTD or FERNOX COOKSON ELECTRONICS directly for further information.
After cleaning the system, it is recommended to use Sentinel X100 or Fernox Protector F1 inhibitors to protect it against corrosion and
deposits.
It is important to check the concentration of the inhibitor after making any changes to the system and during maintenance checks,
following the recommendations of the manufacturers (the retailers can offer tests).
The outlet of the safety valve has to be connected to a collection intake for purging in the event of maintenance.
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
The filling tap set up for the main boiler will be used to load the heating system. During this operation, any air in the system is released
through the manual vent located at the top of the product.
To allow the valve to release any air, we recommend loosening the screw on top of it (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.
Attention: do not mix heating water with incorrect concentrations of anti-freeze or anti-corrosion substances. This
could damage the gaskets and cause noise during operation.
V = MANUAL VENT VALVE.