Installation; General Instructions; Place Of Installation; Plumbing Connections - Ferroli OPERA 70 Instrucciones De Uso, Instalación Y Mantenimiento

OPERA

2. Installation

2.1 General Instructions

THE BOILER MUST ONLY BE INSTALLED BY QUALIFIED PERSONNEL, IN COMPLIANCE WITH ALL THE INS-
TRUCTIONS GIVEN IN THIS TECHNICAL MANUAL, THE CURRENT PROVISIONS OF LAW, THE NATIONAL AND
LOCAL REGULATIONS, AND THE RULES OF PROPER WORKMANSHIP.
For Switzerland, the following installation regulations and directives must be applied:
• SVGW - gas principles G1: installation Gas
• EKAS - Form. 1942: liquid gas directive, part 2
• Cantonal laws and regulations (e.g. fire safety regulations)
OPERA is a heat generator arranged to operate alone or in cascade (bank).
FERROLI supplies on request all the hydraulic accessories and smoke manifolds for the connection of 2 or 3 units in
cascade in configurations of 70 + 70 kW to 320 + 320 +320 kW. The OPERA 160 model is excluded from cascade
configurations.
When OPERA generators are installed in cascade with the accessories foreseen by FERROLI, all the requirements of
current laws and regulations applicable to such "equivalent" generator of total thermal capacity must be met. In particu-
lar the place of installation, safety devices and fume exhaust system must be adequate for the total heating capacity of
the bank of units. The instructions given in this manual concern both the single unit and the connection in cascade. For
further information regarding installation of the generators in cascade, refer to the specific manual supplied with the cas-
cade connection kits.
The boiler electronics are equipped with management functions for a cascade of up to 6 units. To create cas-
A
cade systems with more than three units without using the accessories foreseen by FERROLI, suitably sized
hydraulic/gas manifolds must be arranged, complete with all the safety devices required by current regulations,
as well as individual fume exhausts or fume manifolds appropriately sized by a qualified technician.

2.2 Place of installation

The generator must be installed in a suitable room with ventilation openings towards the outside in conformity with cu-
rrent regulations. If there are several burners or exhausters that can work together in the same room, the ventilation
openings must be sized for simultaneous operation of all the units. The place of installation must be free of flammable
materials or objects, corrosive gases, powders or volatile substances. The room must be dry and not exposed to rain,
snow or frost. For positioning, leave sufficient room around the unit for normal maintenance operations. In particular,
check that the burner door can open freely.

2.3 Plumbing connections

The heating capacity of the unit must be previously established by calculating the building's heat requirement according
to current regulations. The system must be provided with all the components for correct and regular operation. In par-
ticular, provide for all the protection and safety devices required by current regulations for the complete modular gene-
rator. They must be installed on the hot water circuit flow piping, immediately after the last module, within a distance of
not more than 0.5 m. and with no shutoff devices in between. The unit is not supplied with an expansion tank or
safety valve; their connection must therefore be carried out by the Installer.
This unit can operate correctly also with a minimum flow rate of 0 l/h and does not require post-circulation to eliminate
the thermal inertia. With reference to par. "3.3. R3F file R edition 2009" the post-circulation time prescribed by the
manufacturer is therefore equal to 0 seconds.
B
The safety valve outlet must be connected to a funnel or collection pipe to prevent
water spurting onto the floor in case of overpressure in the heating circuit.
Otherwise, if the discharge valve cuts in and floods the room, the boiler manufac-
turer cannot be held liable.
Do not use the water system pipes to ground electrical appliances.
B
Before installation, flush all the pipes of the system thoroughly to remove
any residuals or impurities that could affect proper operation of the unit. Use
chemical conditioners suitable for the purpose; i.e. able to remove from the walls
EN
cod. 3541R963 - Rev. 00 - 09/2021
149