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Pegasus LN 2S
Cod. 3540G310 - 03/2007 (Rev. 02)
EN
1.2 Control panel
To access the control panel, lift the front door.
fig. 1
1. OPERATING INSTRUCTIONS
1.1 Introduction
Dear Customer,
Thank you for choosing Pegasus LN 2S, a FERROLI floor-standing boiler featuring advanced design, cutting-edge
technology, high reliability and quality construction. Please read this manual carefully and keep it for future refe-
rence.
Pegasus LN 2S is a high-efficiency heat generator with low NOx emissions for central heating running on natural or
liquid gas and regulated by an advanced electronic control system.
The boiler shell consists of cast-iron elements whose particular shape guarantees high exchange efficiency under all
operating conditions and an open-flue burner equipped with electronic ignition and ionization flame control.
Partial (1st stage) or total (1st + 2nd stage) burner ignition enables the unit to supply 2 separate power outputs
according to the system’s needs.
The boiler outfit moreover includes 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.
Key
1
Arrangement for thermostatic controller
2
Boiler pressure thermometer
3
Manual reset safety thermostat cover
4 Plug
5
Flame control reset button with 1st-stage
block light
6
Flame control reset button with 2nd-stage
block light
7
2-stage boiler control thermostat
8
0 - 1 - TEST switch
1
2
3
4
6
7
8
5
1.3 Turning on and off
Ignition
• Open the gas valve ahead of the boiler.
• Turn on or insert any switch or plug ahead of the boiler
• Turn the boiler switch “8” onto 1 (Fig. 1).
• Turn knob “7” to the preselected temperature and any room thermostat to the desired temperature value. At
this point, the burner will light and the boiler begins to function automatically, controlled by its adjustment and
safety devices.
• If the boiler is equipped with an electronic thermostatic controller mounted at position 1 of fig. 1, the user must
also take into account the manufacturer’s instructions.
If, after correctly carrying out the lighting procedures, the burners do not light and block pushbutton-light
“5 - 6” come on, wait about 15 seconds and then press the abovementioned pushbuttons. The flame con-
trollers reset in this way will then repeat the ignition cycle. If the burners do not light after a number of
attempts, consult the anomalies paragraph.
In case of an electrical power failure while the boiler is working, the burners will go out and re-ignite auto-
matically when power is restored.
