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Ferroli PEGASUS F2 T Installation And Manintenance Instructions
Ferroli PEGASUS F2 T Installation And Manintenance Instructions

Ferroli PEGASUS F2 T Installation And Manintenance Instructions

High efficiency gas-fired cast-iron boilers

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INSTALLATION
AND MANINTENANCE INSTRUCTIONS
PEGASUS F2 T
HIGH EFFICIENCY GAS-FIRED
CAST-IRON BOILERS
Models 51 - 68 - 85 - 102

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Summary of Contents for Ferroli PEGASUS F2 T

  • Page 1 INSTALLATION AND MANINTENANCE INSTRUCTIONS PEGASUS F2 T HIGH EFFICIENCY GAS-FIRED CAST-IRON BOILERS Models 51 - 68 - 85 - 102...
  • Page 3: Table Of Contents

    Contents 1. General technical data 2. Dimensional and technical characteristics 3. Installation 4. Wiring diagrams 5. Startup and shutdown 6. Gas regulation and conversion 7. Maintenance and cleaning 8. Fault finding...
  • Page 4: General Technical Data

    1. GENERAL TECHNICAL DATA 1.01 Introduction The Pegasus F2 T, with CE approval, is a designed foruse with NATURAL GAS (G 20) or LPG (G 31) for indirect central heating and hot water. 1.02 Installation requirements Only CORGI registered installers should fit the Pegasus boilers.
  • Page 5: Technical Data

    2.02 Technical data The standard cast-iron PEGASUS F2 T boiler is set to operate on NATURAL GAS (G 20). Tgned to operate with a flow temperature of 82 C and a maximum t of 20 C. The limit thermostat is adjustable up to a maximum of 110 C.
  • Page 6 2.03 Main components Front view of the boiler without door Fig. 2a Control panel Fig. 2b Pilot burner Temperature-pressure gauge 10. Burner manifold Boiler control thermostat 11. Gas pressure test point Boiler on/off switch 12. Piezo igniter Flue gas re-set thermostat 13.
  • Page 7 2.04 Characteristic pressure drop curve P mbar Water pressure drop in all models is shown in fig. 3. The following diagram shows the pressure drop in the boiler as a function of the water flow rate. Fig. 3 9 10 Flow rate 2.05 Safe discharge of combustion products - The boiler comes with a FLUE GAS DISCHARGE THERMOSTAT, which provides a high level of safety...
  • Page 8: Installation

    3. BOILER INSTALLATION (To be performed by qualified personnel only) 3.01 General warnings The boiler should be installed according to current regulations. (see para 1.02) We suggest fitting isolating valves between the boiler and the heating system to isolate the boiler from the system if necessary.
  • Page 9 4. WIRING AND CONNECTIONS DIAGRAMS - Electrical connections should be performed according to the diagrams shown below. - Connect the boiler to a single-phase, phase neutral, 230 V ~ 50 Hz power supply through a standard terminal block or outlet with 2A max. fuses connected between the boiler and the power supply. Remember that the boiler should always be provided with a good earth.
  • Page 10 4.02 Access to the internal components of the control panel For access to the terminal block and the internal components of the control panel, proceed as follows: a - Switch off the power supply to the boiler. b - Lift off the boiler cover (held in place by slot pins). c - Unscrew the four screws that hold the plastic panel against the side of the boiler .
  • Page 11: Startup And Shutdown

    5. STARTUP AND SHUTDOWN 5.01 Checks to be carried out on initial lighting It is good practice to check the following on initial lighting: that the cutoff valves between the boiler and heating system are open; that all is well pressurized and vented; that there are no gas or water leaks from the water system or boiler;...
  • Page 12 5.03 Startup with the HONEYWELL V4400C in models 85-102 (fig. 7b) Set the boiler control thermostat 2 (fig. 2), to minimum. Switch off electrical power. Open the gas cock upstream from the boiler. Release the air held in the gas pipes by opening the incoming gas valve test point marked with the number 3 (fig.
  • Page 13 5.04 Temporary shutdown To turn the boiler off for a short period of time, simply switch off the power supply (using the boiler switch). All electrical elements are thus turned off and only the pilot light remains lit. 5.05 Long-term boiler shutdown Turn knob 1 as indicated in fig.
  • Page 14 6.04 Gas pressure adjustment and gas conversion with the “HONEYWELL V4400C” valve Adjust the burner pressure at the main burners by turning screw 2 (fig. 7C): turn it clockwise to increase the pressure and anticlockwise to decrease it. (burner pressure: test point 11 fig. 2a/2b). The pilot light may be adjusted by eye, without the use of instruments, by checking that the flame correctly envelopes the thermocouple without burning excessive gas.
  • Page 15: Maintenance And Cleaning

    7. MAINTENANCE AND CLEANING The following operations are to be performed by qualified personnel only. We recommend you contact our local Customer Technical Support Centers. 7.01 Seasonal inspection of the boiler and flue Before the beginning of winter you should perform a general inspection of the boiler, heating system and flue.
  • Page 16: Fault Finding

    9. FAULT FINDING Fault Cause and Corrective Action No ignition spark Piezoelectric igniter failure. Replace the igniter. Spark electrode is broken or badly positioned. Replace the electrode or position it correctly (see fig. 8). Faulty contact between terminal and cable. Screw the terminal tightly onto the igniter cable.
  • Page 17 Burner is dirty. Inspect and clean the burner. Main burner burns poorly Flame is not adjusted properly. Adjust the gas pressure at the main burner (see table 3 page 5). Smell of unburnt gas Boiler is dirty. Inspect and clean the boiler body. Flue draft is insufficient.
  • Page 20 ALL SPECIFICATIONS SUBJECT TO CHANGE Lichfield Road, Branston Industrial Estate, Burton Upon Trent, Staffordshire DE14 3HD Tel. 08707 282 885 - Fax 08707 282 886...