General Instructions; Place Of Installation; Plumbing Connections - Ferroli BLUEHELIX PRO S 25C 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.
OFFSET = 20
90
10 9 8
7
85
6
80
5
70
4
60
3
50
2
40
1
30
20
fig. 11 - 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.
Table. 1
Heating temperature setting
DHW temperature adjustment
Summer/Winter Switchover
Eco/Comfort selection
Sliding Temperature
System water pressure adjustment
The filling pressure read on the boiler water gauge with the system cold 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 knob detail 1 fig. 12 and bring it to the initial value.
Always turn it off it afterwards.
Once the system pressure is restored, the boiler will activate the 300-second air venting
cycle indicated on the display by FH.
fig. 12 - Filling knob
EN
38
EN
36
OFFSET = 40
90
10 9 8 7
85
80
70
60
50
40
30
20
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 eco/com-
fort button (detail 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 possible
select one of the two modes with the eco/comfort button (detail 7
- fig. 1) on the boiler panel.
Both the Remote Timer Control and the boiler card manage Slid-
ing Temperature adjustment: the boiler card Sliding Temperature
has priority.
A
1
C
cod. 3541F262 - Rev. 00 - 08/2015
cod. 3541F260 -
BLUEHELIX PRO S 25C
BLUEHELIX PRO S 25C
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-
6 5
4 TIONAL AND LOCAL STANDARDS AND THE RULES OF PROPER WORKMANSHIP.
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3.2 Place of installation

2
The combustion circuit is sealed with respect to the place of installation room, therefore
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the unit can be installed in any room. However, the place of installation must be ade-
quately ventilated to prevent the creation of dangerous conditions in case of even small
gas leaks. This safety regulation is laid down by EEC Directive no. 90/396 for all gas
units, including those with sealed chamber.
The unit is suitable for operation in a partially protected place in conformity with EN 297/
A6, with minimum temperature -5°C. If equipped with the special antifreeze kit, it can be
used with minimum temperatures to -15°C. The boiler must be installed is a protected
place, e.g. under the slope of a roof, inside a balcony or in a sheltered recess.
The place of installation must in any case 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. The
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-
A
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 installation, flush all the pipes of the system thoroughly to remove any
residuals or impurities that could affect proper operation of the unit.
In case of replacement of generators in existing installations, the system must
be completely emptied and cleaned of any sludge and pollutants. For that pur-
pose only use suitable guaranteed products for heating systems (see next sec-
tion), that do not harm metals, plastics or rubber. The manufacturer declines
any liability for damage caused to the generator by failure to properly
clean the system.
Carry out the relevant connections according to the diagram in fig. 13 and the symbols
on the unit.
1 =System delivery - Ø 3/4"
2 =Domestic hot water outlet 1/2"
3 =Gas inlet - Ø 1/2"
4 =Domestic hot water inlet 1/2"
5 =System return- Ø 3/4"
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.
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 kit for outdoor installation (optional)
In case of installation outdoors in a partially protected place for temperatures lower than
-5°C and down to -15°C, the boiler must be equipped with the antifreeze kit to protect the
tap water circuit and air trap. The kit comprises a thermostat, electric heaters and a heat-
er for the air trap. Connect the kit to the electronic card and install the thermostat and
heaters on the tap water pipes as directed in the instructions attached to the kit.
1 2 3 4
36 56 56 56 93
fig. 13 - Plumbing connections
5
139
103
), use suitably treated
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