Plumbing Connections; Important; General Instructions; Place Of Installation - Ferroli ATLAS 25 K 100 UNIT Instrucciones De Uso, Instalación Y Mantenimiento

ATLAS 25 K 100 UNIT
Adjustments from Remote Timer Control
If the boiler is connected to the Remote Timer Control (optional), the previously
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described adjustments are managed as described in table 1.
Table. 1
Heating temperature adjustment Adjustment can be made from the Remote Timer Control menu and the boiler
control panel.
DHW 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 heating
demand.
On disabling DHW from the Remote Timer Control menu, the boiler selects
Economy mode. In this condition, the eco/comfort function from the control
panel is disabled.
Eco/Comfort selection
By enabling DHW from the Remote Timer Control menu, the boiler selects
Comfort mode. In this condition, the eco/comfort function can be selected from
the boiler control panel.
Sliding Temperature Both the Remote Timer Control and the boiler card manage Sliding Tempera-
ture adjustment: Sliding Temperature overrides the boiler card.
System water pressure adjustment
The filling pressure read on the system water gauge with the system cold must be ap-
prox. 1.0 bar.
Operating the filling cock (if installed), bring the system pressure to a value above 1.0 bar.
Always close the filling cock at the end of the operation.
A
Filling cock and DHW expansion vessel kit
A kit comprising a filling cock and DHW expansion vessel is available on request.
The cock must be installed respecting the direction of the arrow.
When installed, operate the filling cock to bring the system pressure to a value above 1.0 bar.
Once the system pressure is restored, the boiler will activate the 120-second
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air venting cycle indicated on the display by FH.
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 boiler unit must be installed in a specific room with ventilation openings to the out-
side as prescribed by current regulations. If there are several burners or suction units
that can work together in the same room, the ventilation openings must be sized for si-
multaneous operation of all the units. The place of installation must be free of flammable
materials or objects, corrosive gases, powders or volatile substances that, conveyed by
the burner fan, can obstruct the internal lines of the burner or the combustion head. The
room must be dry and not exposed to rain, snow or frost.
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

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
shutoff 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, flush all the pipes of the system thoroughly to remove any residuals
or impurities that could affect proper operation of the unit.
Carry out the relevant connections according to the diagram in cap. 5 and the symbols
given on the unit.
B
Install on the cold water inlet the safety check valve "A" (see fig. 15) supplied
with the boiler. Respect the direction of the arrow on the valve.
B
Install on the system delivery the non-return valve "A" (see fig. 16) supplied
with the boiler, interposing the gasket "B". Respect the direction of the arrow
on the valve.
High efficiency hot water tank circulating pump
For proper operation of the boiler ATLAS 25 K 100 UNIT, the speed selector (see fig. 17)
must be set to position III.
cod. 3541I360 - Rev. 02 - 04/2018
A
fig. 15 - Safety check valve installation
A B
fig. 16 - Non-return valve installation
4
7
fig. 17
Min
.
1
I
II
III
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EN