EN
1. GENERAL WARNINGS
•
Carefully read and follow the instructions contained in this instruction booklet.
•
After boiler installation, inform the user regarding its operation and give him this
manual, which is an integral and essential part of the product and must be kept with
care for future reference.
•
Installation and maintenance must be carried out by professionally qualified person-
nel, in compliance with the current regulations and according to the manufacturer's
instructions. Do not carry out any operation on the sealed control parts.
•
Incorrect installation or inadequate maintenance can result in damage or injury. The
Manufacturer declines any liability for damage due to errors in installation and use,
or failure to follow the instructions.
•
Before carrying out any cleaning or maintenance operation, disconnect the unit from
the electrical power supply using the switch and/or the special cut-off devices.
•
In case of a fault and/or poor operation, deactivate the unit and do not try to repair
it or directly intervene. Contact professionally qualified personnel. Any repair/re-
placement of the products must only be carried out by qualified personnel using orig-
inal replacement parts. Failure to comply with the above could affect the safety of
the unit.
•
This unit must only be used for its intended purpose. Any other use is deemed im-
proper and therefore hazardous.
•
The packing materials are potentially hazardous and must not be left within the
reach of children.
•
The unit must not be used by people (including children) with limited physical, sen-
sory or mental abilities or without experience and knowledge of it, unless instructed
or supervised in its use by someone responsible for their safety.
•
The unit and its accessories must be appropriately disposed of, in compliance with
the current regulations.
•
The images given in this manual are a simplified representation of the product. In
this representation there may be slight and insignificant differences with respect to
the product supplied.
2. OPERATING INSTRUCTIONS
2.1 Introduction
Dear Customer,
Thank you for choosing a FERROLI boiler featuring advanced design, cutting-edge tech-
nology, high reliability and quality construction. Please read this manual carefully since
it provides important information on safe installation, use and maintenance.
ATLAS 25 K 100 UNIT is a high-efficiency heat generator for heating and domestic hot
water production, suitable for operation with oil burners. The boiler shell consists of cast-
iron elements, assembled with double cones and steel stays placed over a quick storage
domestic hot water tank, vitrified and protected against corrosion by a magnesium an-
ode.
2.2 Control panel
Panel
5
9
10
1
fig. 1 - Control panel
Panel legend
1 =
"Summer/Winter/Off" switching and system temperature adjustment
2 =
DHW temperature adjustment and off
3 =
Reset - "Economy/Comfort" multifunction button
4 =
Display
5 =
Heating mode
6 =
DHW mode
7 =
Comfort mode - Burner lit
8 =
Comfort mode
9 =
Fault
10 =
Fault reset required
11 =
Multifunction
46
EN
11
8
6
7
60
40
80
20
0
4
3
2
cod. 3541I360 - Rev. 02 - 04/2018
ATLAS 25 K 100 UNIT
Indication during operation
Heating
A heating demand (generated by the Room Thermostat or Remote Timer Control) is in-
dicated by activation of the radiator (detail 5 - fig. 1).
The multifunction display (detail 11 - fig. 1) shows the heating sensor temperature.
Domestic hot water (DHW)
A DHW demand (generated by drawing hot water) is indicated by activation of the tap
(detail 6 - fig. 1).
The multifunction display (detail 11 - fig. 1) shows the heating sensor temperature.
Exclude hot water storage tank (economy)
Hot water storage tank temperature maintaining/heating can be excluded by the user. If
excluded, domestic hot water will not be delivered.
When the hot water tank heating is on (default setting), the comfort symbol (detail 8 -
fig. 1).
The hot water tank can be deactivated by the user (ECO mode) by pressing the reset
button (detail 3 - fig. 1). The comfort symbol (detail 8 - fig. 1) is activated and the display
will show "EC" (eco) for 3 seconds.
To activate the comfort mode, press the reset buttonagain. The comfort symbol is acti-
vated and the display will show "CO" (comfort) for 3 seconds.
2.3 Lighting and shutdown
Boiler not electrically powered
100
120
B
The antifreeze system does not work when the power and/or gas to the unit are
turned off. To avoid damage caused by freezing during long shutdowns in win-
ter, it is advisable to drain all water from the boiler, the DHW circuit and the
heating system water; or drain just the DHW circuit and add a suitable anti-
freeze to the heating system, as prescribed in sec. 3.3.
fig. 2
fig. 3
fig. 4 - Boiler not electrically powered
60
40
80
20
100
0
120
60
40
80
20
100
0
120
60
40
80
20
100
0
120