General Instructions; Place Of Installation; Plumbing Connections; Important - Ferroli DIVA HF Instructions D'utilisation

Hot water temperature adjustment
Use the DHW buttons (details 1 and 2 - fig. 1) to adjust the temperature from a minimum
of 10°C to a maximum of 65°C.
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature required in the rooms. If the room ther-
mostat is not installed, the boiler will keep the system at the set system delivery setpoint
temperature.
Room temperature adjustment (with optional remote timer control)
Using the remote timer control, set the required temperature in the rooms. The boiler will
adjust the system water according to the required room temperature. For operation with
remote timer control, please refer to the relevant instruction manual.
Hot water tank exclusion (economy)
Hot water tank temperature maintaining/heating can be excluded by the user. If exclud-
ed, domestic hot water will not be delivered.
The hot water tank can be deactivated by the user (ECO mode) by pressing the ECO/
COMFORT button (detail 7 - fig. 1). In ECO mode the display activates the ECO symbol
(detail 12 - fig. 1). To activate COMFORT mode, press the ECO/COMFORT button (de-
tail 7 - fig. 1) again.
Adjustments from Remote Timer Control
If the Remote Timer Control (optional) is connected to the boiler, the above ad-
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justments are managed according to that given in table 1.
Table. 1
Heating temperature setting Adjustment can be made from the Remote Timer Control menu and the
boiler control panel.
Hot water temperature adjustment Adjustment can be made from the Remote Timer Control menu and the
boiler control panel.
Summer/Winter Switchover Summer mode has priority over a possible Remote Timer Control heat-
ing demand.
Eco/Comfort selection Adjustment can only be made from the boiler control panel.
System water pressure adjustment
The filling pressure with system cold, read on the boiler water gauge (detail 17 - fig. 1),
must be approx. 1.0 bar. If the system pressure falls to values below minimum, the boiler
stops and fault F37 is displayed. Operate the filling cock, if connected to the water sys-
tem (detail 1 fig. 6), and bring it to the initial value. Always close the filling cock at the end
of the operation.
fig. 6 - Filling cock
14
EN
fig. 5
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cod. 3541E613 - Rev. 00 - 02/2016
3. INSTALLATION

3.1 General Instructions

BOILER INSTALLATION MUST ONLY BE PERFORMED BY QUALIFIED PERSON-
NEL, IN ACCORDANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL
MANUAL, THE PROVISIONS OF CURRENT LAW, THE PRESCRIPTIONS OF NA-
TIONAL AND LOCAL STANDARDS AND THE RULES OF PROPER WORKMANSHIP.

3.2 Place of installation

The combustion circuit is sealed with respect to the place of installation, therefore the
unit can be installed in any room. The place of installation must be adequately ventilated
to avoid the creation of dangerous conditions in case of any gas leaks. This safety stand-
ard is required by the EEC Directive no. 2009/142 for all gas units, including those with
sealed chamber.
The unit is designed to operate in a partially protected place in accordance with EN 297
pr A6, with minimum temperature of -5°C. It is advisable to install the boiler under a roof
slope, inside a balcony or in a protected recess.
In any case, the place of installation must be free of dust, flammable materials or objects
or corrosive gases.
The boiler is arranged for wall mounting and comes standard with a hooking bracket. Fix
the bracket to the wall according to the measurements given in fig. 17 and hook the boiler
onto it. Wall fixing must ensure a stable and effective support for the generator.
If the unit is enclosed in a cabinet or mounted alongside, a space must be pro-
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vided for removing the casing and for normal maintenance operations

3.3 Plumbing connections

Important

B
The safety valve outlet must be connected to a funnel or collection pipe to pre-
vent 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 manu-
facturer cannot be held liable.
B
Before making the connection, check that the unit is arranged for operation with
the type of fuel available and carefully clean all the system pipes.
Carry out the relevant connections according to the diagram in fig. 20 and the symbols
on the unit.
Note: The unit is equipped with an internal bypass in the heating circuit.
Water system characteristics
In the presence of water harder than 25° Fr (1°F = 10ppm CaCO
water in order to avoid possible scaling in the boiler.
Antifreeze system, antifreeze fluids, additives and inhibitors
When necessary, antifreeze fluids, additives and inhibitors can be used only if the man-
ufacturer of such fluids or additives guarantees that they are suitable and do not cause
damage to the exchanger or other components and/or materials of the boiler and system.
Do not use generic antifreeze fluids, additives or inhibitors that are not specific for use in
heating systems and compatible with the materials of the boiler and system.
DIVA HF
), use suitably treated
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