General Instructions; Place Of Installation; Plumbing Connections; Important - Ferroli DIVAtop ST F Instrucciones De Uso

If the room temperature is lower than the required value, it is advisable to set a higher
order curve and vice versa. Proceed by increasing or decreasing in steps of one and
check the result in the room.
90
85
80
70
60
50
40
30
20
20 10
fig. 13 - Compensation curves
OFFSET = 20
90
10 9 8
7
85
6
80
5
70
4
60
3
50
2
40
1
30
20
20 10 0 -10 -20
fig. 14 - Example of compensation parallel curve offset
Adjustments from remote timer control
If the Remote Timer Control (optional) is connected to the boiler, the above ad-
A
justments are managed according to that given in table 1. Also, the control pan-
el display (detail 5 - fig. 1) shows the actual room temperature read by the
Remote Timer Control.
Table. 1
Heating temperature setting
Hot water temperature adjustment
Summer/Winter Switchover
Eco/Comfort selection
Sliding Temperature
System water pressure adjustment
The filling pressure with system cold, read on the boiler water gauge, must be approx.
1.0 bar. If the system pressure falls to values below minimum, the boiler card will activate
fault F37 (fig. 15).
fig. 15 - Low system pressure fault
Operate the filling cock (detail 1 - fig. 15) and bring the system pressure to a value above
1.0 bar.
At the bottom of the boiler there is a pressure gauge (detail 2 - fig. 15) to show the pres-
sure even when there is no power supply.
Once the system pressure is restored, the boiler will activate the 120-second
A
air venting cycle indicated on the display by FH.
At the end of the operation always close the filling cock (detail 1 - fig. 15)
36
EN
10 9 8 7 6
5
4
3
2
1
0 -10 -20
OFFSET = 40
90
10 9 8 7
85
80
70
60
50
40
30
20
20 10 0
Adjustment can be made from the Remote Timer Control
menu and the boiler control panel.
Adjustment can be made from the Remote Timer Control
menu and the boiler control panel.
Summer mode has priority over a possible Remote Timer
Control heating demand.
On disabling DHW from the Remote Timer Control menu,
the boiler selects the Economy mode. In this condition, the
button 7 - fig. 1 on the boiler panel is disabled.
On enabling DHW from the Remote Timer Control menu, the
boiler selects the Comfort mode. In this condition it is possi-
ble select one of the two modes with the button 7 - fig. 1 on
the boiler panel.
Both the Remote Timer Control and the boiler card manage
Sliding Temperature adjustment: of the two, the Sliding Tem-
perature of the boiler card has priority.
cod. 354
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 and therefore the
unit can be installed in any room. However, the place of installation must be sufficiently
ventilated to prevent dangerous conditions from being created even in case of small gas
leaks. This safety regulation is provided for by EEC Directive no. 2009/142 for all gas
units, including those with so-called sealed chamber.
The unit is suitable for operation in a partially protected place in conformity with EN 297
pr A6, with minimum temperature -5°C. If equipped with the special antifreeze kit it can
be used with minimum temperature as low as -20°C. It is advisable to install the boiler
under the slope of a roof, inside a balcony or in a sheltered recess.
Therefore the place of installation must be free of dust, flammable materials or objects
or corrosive gases.
6 5 The boiler is arranged for wall mounting and comes standard with a hooking bracket. Fix
4
the bracket to the wall according to the measurements given in the cover drawing and
3
hook the boiler on it. A metal template for marking the drilling points on the wall is avail-
able on request. The wall fixing must ensure a stable and effective support for the gen-
2
erator.
1
If the unit is enclosed in a cabinet or mounted alongside, a space must be pro-
A
vided for removing the casing and for normal maintenance operations.

3.3 Plumbing connections

-10 -20

Important

The heating capacity of the unit must be previously established by calculating the build-
ing's heat requirement according to the current regulations. The system must be provid-
ed with all the components for correct and regular operation. It is advisable to install on-
off valves between the boiler and heating system allowing the boiler to be isolated from
the system if necessary.
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.
Do not use the water system pipes to earth electrical appliances.
Before installation, carefully wash all the pipes of the system to remove any residuals or
impurities that could affect proper operation of the unit.
Carry out the relevant connections according to the diagram in (fig. 16)and the symbols
given on the unit.
2
1 = System delivery
2 = Domestic hot water outlet
1 3 = Gas inlet
Connection kits
The connection kits shown in the figure below (fig. 17) are supplied standard
- Rev. 00 - 09/2013
DIVAtop ST F
2
4
3
1
6
114.5 94 54 51 80.5 56
fig. 16 - Plumbing connections
4 = Cold water inlet
5 = System return
6 = Safety valve drain
5