Ferolli PEGASUS F2 N 2S - manual service.pdf

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PEGASUS F3 N 2S
cast iron gas boiler
for heating with electronic
ignition and flame control
INSTRUCTIONS FOR USE, INSTALLATION AND MAINTENANCE
cod. 3544310/3 - 04/2005
Pegasus F3 N 2S
IMPORTANT
Your "benchmark" Installation, Commissioning and Service Record Log Book is enclosed in the
last pages of this manual. “This record must be completed and left with the end user”.
Ferroli is a member of the Benchmark initiative and fully supports the aims of the programme. Benchmark
has been introduced to improve the standards of installation and commissioning of central heating
systems in the UK and to encourage the regular servicing of all central heating systems to ensure
safety and efficiency.
Please see installation and servicing guidelines.
• Carefully read the warnings in this instruction
booklet since they provide important infor-
mation on safe installation, use and mainte-
nance.
• This instruction booklet is an integral part of
the product and must be carefully kept by the
user for future reference.
• If the unit is sold or transferred to another
owner or if it is to be moved, always make
sure that the booklet accompanies the boiler
so that it can be consulted by the new owner
and/or installer.
• Installation and maintenance must be carried
out by professionally qualified personnel,
according to current regulations and the
manufacturer’s instructions.
• Incorrect installation or poor maintenance
can cause damage or physical injury. The
manufacturer declines any responsibility for
damage caused by errors in installation and
use or by failure to follow the manufacturer’s
instructions
• Before carrying out any cleaning or mainte-
nance operation, disconnect the device from
electrical power supply using the switch and/or
the special cutoff devices.
This symbol indicates
“Caution”
and is placed next to all safety
warnings. Strictly follow these
instructions in order to avoid
danger and damage to persons,
animals and things.
• In case the unit breaks down and/or functions
poorly, deactivate it, do not make any attempt
to repair it or directly intervene. Contact pro-
fessionally qualified personnel.
• Any repair/replacement of products must only
be carried out by qualified professional person-
nel using exclusively genuine parts. Failure to
comply with the above could affect the safety
of the unit.
• Yearly maintenance carried out by qualified
personnel is essential for guaranteeing good
operation of the unit.
• This unit must only be used for the purpose for
which it was designed. Any other use is con-
sidered improper and therefore hazardous.
• After removing the packing, check the integrity
of the contents.
• Packing materials must not be left within the
reach of children as they are potentially hazard-
ous.
• In case of doubt do not use the unit, and contact
the supplier.
This symbols calls attention to a
note or important notice
Certification
The CE marking demonstrates that Ferroli
gas units conform to the requirements
contained in the applicable European
directives.
2
Pegasus F3 N 2S
1. OPERATING INSTRUCTIONS..................................................................4
1.1 Introduction ............................................................................................................4
1.2 Control panel ..........................................................................................................4
1.3 Turning on and off ..................................................................................................5
1.4 Adjustments ............................................................................................................5
1.5 Maintenance............................................................................................................6
1.6 Anomalies................................................................................................................6
2. INSTALLATION .......................................................................................7
2.1 General Instructions................................................................................................7
2.2 Place of installation .................................................................................................7
2.3 Plumbing connections.............................................................................................7
2.4 Gas connection .......................................................................................................8
2.5 Electrical Connections ............................................................................................9
2.6 Connection to the flue ..........................................................................................10
2.7 Installing module generators ................................................................................10
3. SERVICE AND MAINTENANCE............................................................18
3.1 Adjustments ..........................................................................................................18
3.2 System start-up .....................................................................................................21
3.3 Maintenance..........................................................................................................22
3.4 Troubleshooting....................................................................................................26
4 TECHNICAL CHARACTERISTICS AND DATA.........................................28
4.1 Dimensions and connections ................................................................................28
4.2 General view and main components ....................................................................29
4.3 Technical data table..............................................................................................30
4.4 Diagrams ...............................................................................................................31
4.5 Wiring diagrams....................................................................................................32
BENCHMARK ...........................................................................................36
3
Pegasus F3 N 2S
1. OPERATING INSTRUCTIONS
1.1 Introduction
Dear Customer,
Thank you for choosing
Pegasus F3 N 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 reference.
Pegasus F3 N 2S
is a high-efficiency heat generator 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.
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.
1.2 Control panel
To access the control panel, lift the front door.
fig. 1
1
2
3
4 5
6
7
Key
1
2
3
4
5
6
7
Arrangement for thermostatic controller
Boiler pressure thermometer
Manual reset safety thermostat cover
Plug
Flame control reset button with block light
2-stage boiler control thermostat
0 - 1 - TEST switch
4
Pegasus F3 N 2S
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
“7”
onto 1 (Fig. 1).
Turn knob
“6”
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 procedure, the burners do not light and the pushbutton
light
“5”
comes on, wait about 15 seconds and then press the above-mentioned pushbutton.
The flame controller 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 automatically when power is restored.
Turning off
Close the gas cock ahead of the boiler, turn knob “7” onto the 0 position and disconnect the
electrical power.
To avoid damage caused by freezing during long shutdowns in winter, it is advisable to drain all
water from the boiler and the system; or add a suitable antifreeze to the heating system.
The boiler switch 7 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.
1.4 Adjustments
System temperature adjustment
Turn knob 6 (Fig. 1) clockwise to increase the heating water temperature, turn anticlockwise 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 temperature desired in the rooms. Controlled by the room
thermostat, the boiler lights and delivers water to the system at the temperature set by boiler
adjustment thermostat 6 (Fig. 1). The generator turns off when the desired 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 boiler hydrometer (detail 2 in Fig.1), must be about 1.0 bar.
If, during operation, the system pressure falls (caused by the evaporation of gas dissolved in the water) to
values below the minimum described above, the user must bring it back to the initial value by operating
the filling cock. At the end of the operation always close the filling cock.
5

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