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Ferroli PEGASUS F2 N 2S - User Manual

Ferroli PEGASUS F2 N 2S
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PEGASUS F2 N 2S
CAST IRON GAS BOILER
for heating with electronic
ignition and fl ame control
INSTRUCTIONS FOR USE,
INSTALLATION
AND MAINTENANCE
cod. 3544309/0 ediz. 01/2003

Table of Contents

Questions and Answers

  • U
    uhuntAug 15, 2025
    What to do if Ferroli Boiler shuts down after ignition attempts?
    • P
      Peggy HorneAug 15, 2025
      If your Ferroli Boiler shuts down after a few ignition attempts, there are several potential causes. First, the pilot light nozzle might be dirty, in which case you should clean it with compressed air. Also, ensure a regular gas flow to the boiler and that all air has been purged from the pipes. Check the positioning and cleanliness of the electrodes, ensuring they are free of deposits. Verify the boiler has a solid earth connection and inspect the connections to the ignition and ionization electrodes.
  • J
    johnny76Aug 18, 2025
    Why is the flame on my Ferroli PEGASUS F2 N 2S burner too high, low, or yellow?
    • M
      Matthew MartinAug 18, 2025
      If the burner in your Ferroli Boiler is burning poorly with flames that are too high, too low, or too yellow, check the gas supply pressure if the gas valve filter is dirty. If the gas nozzles are dirty, make sure that the boiler is not dirty. Also, ensure sufficient ventilation in the room where the unit is located to promote good combustion.
  • B
    Brenda NealAug 21, 2025
    What to do if the electrodes are not discharging in the ignition phase of my Ferroli PEGASUS F2 N 2S?
    • C
      Charles TaylorAug 22, 2025
      If the electrodes in your Ferroli Boiler are not discharging during ignition, several issues could be at fault. Begin by checking the positioning and cleanliness of the electrodes, ensuring they are free of any deposits. Verify the electrical power supply, especially if the regulation thermostat is set too low. Inspect the connections to the ignition and ionization electrodes, as well as the connections at the electronic flame controller. Ensure that PHASE and NEUTRAL are not inverted and that the earth contacts are efficient. Check the inlet gas pressure, look for any open pressure switches, and try resetting the safety and fume thermostats. Finally, ensure the room thermostat is closed.
  • D
    Diane MitchellAug 25, 2025
    What to do if my Ferroli PEGASUS F2 N 2S works but the temperature doesn't increase?
    • S
      Stephanie RossAug 26, 2025
      If your Ferroli Boiler is running but failing to increase the temperature, check that the 2-stage adjustment thermostat works properly and that the operator of the 2nd stage of the gas valve (full power) is supplied. Also, ensure that gas consumption is not less than required and that the boiler is perfectly clean. Verify that the boiler is adequate for the system and that the heating pump is not blocked.
  • S
    smithdanielAug 28, 2025
    Why do I smell unburnt gas from my Ferroli Boiler?
    • A
      Anne MillsAug 28, 2025
      If you smell unburnt gas coming from your Ferroli Boiler, ensure that the boiler is clean. Also, check the draught of the flue and verify that gas consumption is not excessive.
  • S
    slevyAug 31, 2025
    How to fix temperature of the water being too high or too low in my Ferroli PEGASUS F2 N 2S?
    • J
      John WilsonAug 31, 2025
      If the water temperature in your Ferroli Boiler system is too high or too low, start by checking that the 2-stage adjustment thermostat works correctly. Also, verify that the pump is not blocked and ensure that the characteristics of the circulating pump are adequate for the system.
  • M
    Matthew HensleySep 4, 2025
    Why is my Ferroli Boiler producing condensation water?
    • A
      Alison KingSep 4, 2025
      If your Ferroli Boiler is producing condensation water, ensure that the boiler is not operating at too low a temperature (below 50°C). Also, check that gas consumption is regular and verify the efficiency of the flue.
  • G
    gina42Sep 7, 2025
    What to do if the adjustment thermostat switches back on with too great a temperature difference in my Ferroli PEGASUS F2 N 2S Boiler?
    • T
      Tyler DuncanSep 7, 2025
      If the adjustment thermostat in your Ferroli Boiler switches back on with too great a temperature difference, check that the thermostat bulb is properly inserted in the sheath and ensure the 2-stage thermostat works correctly.
  • J
    joyce25Sep 12, 2025
    What causes burner explosion or delay on ignition in my Ferroli Boiler?
    • H
      Heather WilliamsSep 12, 2025
      If you experience a burner explosion or delay on ignition with your Ferroli Boiler, check that the gas pressure is sufficient and the boiler casing is not dirty.

Ferroli PEGASUS F2 N 2S Specifications

General IconGeneral
MountingFloor
Combustion chamberSealed
Fuel typeNatural gas
EfficiencyUp to 92.5%
NOx class5
Weight210 - 390 kg (depending on model)
Max working temperature90°C
IgnitionElectronic
Heat exchanger materialCast iron
Water pressureMax 6 bar

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