Plumbing System Connections; Installation Advice - Ravelli HR EVO 200 SMART Manuel D'utilisation Et D'entretien

EN
Rev.1 08/09/2021
Pag.32
⚠

PLUMBING SYSTEM CONNECTIONS

Plumbing must always be carried out by qualified personnel, able to carry out a state-of-the-art installation in compliance with
the laws in force in the country of installation, after having read the next chapter. Ravelli denies all liabilities for damages to
⚠
people or property arising from malfunctions due to failure to comply with this warning.
⚠
These products are designed to operate correctly and safely in closed-cup hydraulic systems.
Connect the unit to the heating system; under no circumstances can it be used without the hydraulic connection and without
water in the heating chamber and system.

Installation advice

The heating system must be sized appropriately based on the power of the boiler. If necessary, rely on a thermo-technician. After
placing the appliance and installing all fume exhaust pipes, you can connect the hydraulic system. It is recommended to connect the
⚠
appliance to the system by means of ball valves or gate valves, in order to enable easy detachment, if needed.
During transport, the rings and respective seals in the water system may come loose and/or break, causing water leaks
during operation; therefore make sure to check the tightening of the circulating pump and heating chamber connection rings
and vent the residual air during water filling and after the first hours of operation.
3 bar safety valve (overpressure device)
It is mandatory to connect the safety drain of the appliance to an adequate evacuation system. The connection can be made using a
rubber hose resistant to temperatures of at least 110 ° C.
Please note that in case of intervention of the 3 bar safety valve, part of the water contained in the system is expelled from the safety
⚠
drain.
⚠
It is forbidden to connect a shut-off valve to the safety drain outlet.
⚠
The water coming out of the safety valve could be hot! Danger of burns and damage to people and things!
The manufacturer is not responsible for any damage to persons or things caused by failure to connect the safety drain or by
an inadequate connection.
Expansion vessel
Check that the expansion vessel fitted as standard on the appliance is sufficient for the volume of water contained in the system.
Otherwise it will be necessary to install an additional expansion vessel on the system.
Anti-condensation valve
In solid fuel appliances, to avoid the return of cold water in the heating chamber during the heating phase, it is advisable to install in
the system an AUTOMATIC THERMOSTATIC VALVE (available on request) to improve combustion efficiency and appliance life and
also reduce the condensation of fumes in the flue ways, with less deposits and tars.
Storage systems (puffer, boiler)
Solid fuel appliances are, by their nature, devices with high thermal inertia. To increase the heat output of the system, reduce the on
/ off cycles, reduce cleaning interventions and have hot water always available, it is recommended to install thermal accumulators in
the system, such as puffers for technical water or boilers for domestic hot water. There are many combined solutions on the market
(puffer tank in tank, pipe in tank, etc.), which allow to meet all needs.
Use and maintenance manual HR EVO Smart