PEGASUS LN 2S
28
EN
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
PEGASUS LN 2S
, a floor-standing boiler
FERROLI
featuring
advanced design, cutting-edge technology, high reliability and quality construction.
Please read this manual carefully and keep it for future reference.
PEGASUS LN 2S is a high-efficiency heat generator with
low NOx emissions
for central
heating, running on natural gas or liquefied gas, equipped with an advanced electronic
control system.
The boiler shell consists of cast iron elements whose particular shape guarantees high
exchange efficiency in all operating conditions and an open-flue burner equipped with
electronic ignition and ionisation flame control.
Partial (1st stage) or total (1st + 2nd stage) burner ignition enables the unit to supply two
separate outputs according to system requirements.
The boiler also has an automatic boiler air vent valve, a 2-stage control thermostat and
a safety thermostat.
Thanks to the electronic ignition and flame control system, unit operation is for the most
part automatic.
The user only has to set the system temperature by means of the control thermostat.
2.2 Control panel
To access the control panel, lift the front door.
fig. 1 - Control panel
Key
1
Prearrangement for thermostatic controller
2
Boiler pressure/temperature gauge
3
Manual reset safety thermostat cover
4
Cap
5
Flame control reset button with 1st stage shutdown indicator
6
Flame control reset button with 2nd stage shutdown indicator
7
2-stage boiler control thermostat
8
0 - 1 - TEST switch
2.3 Turning on and off
Lighting
•
Open the gas cock ahead of the boiler.
•
Turn on or insert any switch or plug ahead of the boiler.
•
Turn the boiler switch “8” to 1 (fig. 1).
•
Turn the knob "7" to the required temperature and that of a possible room thermostat
to the required temperature value. The burner will light and the boiler begins to func-
tion automatically, controlled by its adjustment and safety devices.
•
If the boiler is equipped with an electronic thermostatic controller fitted in position 1
of fig. 1, the user must also take into account the manufacturer's instructions.
A
If, after correctly carrying out the lighting procedures, the burners do not light
and buttons-shutdown indicator "5 - 6" come on, wait about 15 seconds then
press the above-mentioned buttons. The flame controllers reset in this way will
repeat the lighting cycle. If the burners do not light after several attempts, con-
sult the faults section.
A
In case of a power failure while the boiler is working, the burners will go out and
relight automatically when the power is restored.
Turning off
Close the gas cock ahead of the boiler, turn knob "8" to 0 and disconnect the power.
B
To avoid damage caused by freezing during long shutdowns in winter, it is ad-
visable to drain all water from the boiler and system; or add a suitable antifreeze
to the heating system.
The boiler switch 8 has 3 positions “0-1-TEST”; the first two have the on-off
function, the third (unstable) must only be used for service and maintenance
purposes.
2.4 Adjustments
System temperature adjustment
Turn the knob 7 of fig. 1 clockwise to increase the heating water temperature, or anti-
clockwise to decrease it. The temperature can be varied from a minimum of 30°C to a
maximum of 90°C. However, it is advisable not to operate the boiler below 45°C.
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the required temperature in the rooms. By command of
the room thermostat, the boiler lights and brings the system water to the temperature set
by boiler adjustment thermostat 7 of fig. 1. The generator turns off when the required
temperature in the rooms is reached.
If the room thermostat is not installed the boiler will keep the system at the temperature
set by the boiler control thermostat.
Water system pressure adjustment
The filling pressure with system cold, read on the boiler water gauge detail 2 of fig. 1,
must be approx. 1.0 bar. If, during operation, the system pressure falls (due to the evap-
oration of gases dissolved in the water) to values below the minimum described above,
the user must bring it to the initial value by operating the filling cock. At the end of the
operation always close the filling cock.
2.5 Faults
Given below are the faults that can be caused by simple user-solvable problems.
A
Before calling the after-sales service, check that the problem is not due to no
gas or power.
1
2
3
4
6
7
8
5
Symbol
Faults
Cure
Boiler shutdown by the flame control-
ler
Check if the gas cocks ahead of the boiler and on the
meter are open.
Press the illuminated indicator-button.
In case of repeated boiler shutdowns, contact the nearest
service centre.
Boiler shutdown due to insufficient
system pressure (only if a pressure
switch is installed in the system)
Fill the system to 1-1.5 bar cold by means of the system
filling cock.
Close the cock after use.
Boiler shutdown due to water over-
temperature
Unscrew the safety thermostat cover and press the but-
ton below.
In case of repeated shutdowns, contact the nearest serv-
ice centre.
cod. 3540T612 - Rev. 01 - 02/2015
