1. Manuals
  2. Brands
  3. Ferroli Manuals
  4. Boiler
  5. SIGMA
  6. Installation and servicing instructions

Ferroli SIGMA Installation And Servicing Instructions

Wall mounted cast iron, gas fired boiler for central heating fan assisted, room sealed, electronic flame ignition and control
Hide thumbs Also See for SIGMA:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Instructions for Installation and Servicing, Instructions for Using
SIGMA
wall mounted cast iron,
gas fi red boiler for central heating
fan assisted, room sealed,
electronic fl ame ig ni tion and control
INSTALLATION AND SERVICING INSTRUCTIONS
Sigma 60 - 100 GC N° 41-267-19

Advertisement

Table of Contents
loading

Related Manuals for Ferroli SIGMA

Summary of Contents for Ferroli SIGMA

  • Page 1 SIGMA wall mounted cast iron, gas fi red boiler for central heating fan assisted, room sealed, electronic fl ame ig ni tion and control INSTALLATION AND SERVICING INSTRUCTIONS Sigma 60 - 100 GC N° 41-267-19...

  • Page 2: Table Of Contents

    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.

  • Page 3: Technical Characteristics

    1.01 Introduction The Sigma is defined as a “room sealed” boiler, all air required for combustion is taken from outside the room in which it is installed. It is a new high performance gas fired heat generator, which is designed to provide indirect hot water and/or central heating.
  • Page 4 /h-NG G31 kg/h-LPG G20-NG G31-LPG Ø Ø 29,3 17,9 32,2 20,5 35,7 32,7 0,67 3,45 2,17 2,52 1,60 Sigma 60/100 Burner gas pressures Gas supply pressures G20-NG G31-LPG Model G20-NG G31-LPG Minimum Nominal Minimum Nominal mbar mbar mbar mbar mbar...
  • Page 5 Sigma 1.04 General Layout and Main Components 1 Fixing points C.H. out C.H. in 5 Room sealed compartment 7 Inlet gas-cock 10 Central heating flow outlet 11 Central heating return inlet 16 Fan 19 Combustion chamber Air in 21 Gas injector...

  • Page 6: Installation

    2.01.01 Location of Boiler The installation of the Sigma must be on a suitable non-combustible load bearing wall which will provide an adequate fixing for the boiler mounting bracket assembly. The location should be in an area where the water pipes will not be subjected to frost conditions.
  • Page 7 Sigma 2.01.04 Gas Supply If necessary the local Gas supplier should be consulted, at the installation planning stage, in order to establish the availability of an adequate supply of gas. An existing service pipe must not be used without prior consultation with the Local Gas supplier.
  • Page 8 Specifications for Domestic Wet Central Heating Systems. 2.02.05 Water treatment Sizing of expansion vessels: If water treatment is used ferroli limited recommend only the use of Fernox or Sentinel water treatment products, which must VESSEL CHARGE be used in accordance with the manufacturers instructions. For...
  • Page 9 Sigma 2.04 Wall Mounting 2.04.01 Drilling Template 255 min 132,5 167,5 min 5 min Fig. 5 Minimum clearances and drilling template for standard rear flue. min. 138 Fig. 6a Drilling template for orizontal concentric flue.
  • Page 10 Sigma 2.04.02 Wall mounting instructions for Rear Flue Application Fig. 7 Fig. 8 Fig. 9 Select suitable mounting position for Drill four 10 mm holes 70 mm deep to Insert the plastic plugs. boiler. Refer to fig. 6 for dimensions and accept the wall plug.
  • Page 11 Sigma Fig. 12 Fig. 13 Gently pull back until wall seal is flush with the wall. Position the wall plate on the wall. Fix plate to wall with the square gasket between the wall and the plate use the large diameter washers for the bolts ad screws.
  • Page 12 Sigma Fig. 18 Fig. 19 Fig. 20 Install the inner metal flue "a" into the Lift boiler with flue pipe in place, Make sure the inner flue is fully engage adapter "b". engage inner and outer flue, slide into in the flue terminal, secure boiler with position.
  • Page 13 Sigma For rear outlet For top outlet For top For rear outlet outlet Fig. 23 Fig. 24 Remove fan mounting plate by undoing Rotate the fan through 90° so that the fan nozzle points upward. Secure the fan the three fixing screws "c".
  • Page 14 Sigma 2.06 Top outlet Flue Connection Three different connection are available from top of the boiler, using accessories as reported on fig. 30a, b e c and on examples a next page. Top outlet horizontal Top outlet two Top outlet vertical concentric fl...
  • Page 15 Reduction for bend length permissible back exit Vertical *Horizontal Vertical *Horizontal Sigma 60/100 100 mm concentric bend 90° 100 mm concentric bend 45° 0,5 m 125 mm concentric bend 90° 0,5 m * For horizontal flueing the reduction for appliance bend are already included.
  • Page 16 IMPORTANT: the pipes and fittings flow resistance (reduction) have been summarised on the following page. The fl ow resistance values written refer only to Ferroli pipes and fi ttings. Verify that the total flow resistance calculated is less or equal to 40 metre.
  • Page 17 Sigma Pipe and fi ttings reduction table (shown in Metres)

  • Page 18: Terminal Position

    Sigma 2.07.03 Terminal Position D, E Balanced flues room Open flues sealed Dimensions Terminal position (kW input expressed in net) Natural Fanned Natural Fanned draught draught draught draught Directly below an opening, air brick, (0-7 kW) 300 mm 300 mm...
  • Page 19 Sigma 2.08.01 Schematic wiring diagram for fully pumped system Blue 230V ~ 50 Hz SwL L N PL Blue G C P Fully 16 Fan pumped 24 Spark and sensor electrode Fig. 40a 32 Central heating pump (not fitted) 34 Central heating flow temperature sensor...

  • Page 20: Commissioning And Testing

    Sigma 3. COMMISSIONING AND TESTING 3.01 Checks to be carried out before starting up for the fi rst time When firing the boiler up for the first time, it is good practice to check: that the isolation valves between the boiler and central heating systems are open;...

  • Page 21: Adjustment

    Sigma 4. ADJUSTMENT 4.01 Adjusting the gas pressure and heat output The following adjustments must be carried out by qualified personnel only. To adjust boiler heat input simply adjust the burner pressure gas via the pressure regulator on the gas valve (fig.

  • Page 22: Gas Conversion

    5. GAS CONVERSION The following adjustment and conversion operations must be carried out by qualified personnel. FERROLI Limited accepts no liability for damage to property or personal injury resulting from tampering with the boiler by unauthorised persons.

  • Page 23: Maintenance And Cleaning

    0.0004. If it does, a full service is required. After a full service the CO/CO ratio must not exceed 0.0008. 6.03 Sigma Servicing Procedure (only to carried out by a competent person) 1) Visually check the boiler for correct installation and flueing. 2) Isolate electricity supply.
  • Page 24 Sigma 7) If inlet working pressure is ok using the test point on the gas valve marked OUT check the burner pressure. Burner pressures for the required heat output can be obtained from fig. 42a for natural gas and fig. 42b for LPG.

  • Page 25: Replacement Of Parts

    Sigma 7. REPLACEMENT OF PARTS Before commencing with the replacement of any parts, ensure the gas and electricity are isolated. 7.01 To remove Outer Cover a. Remove 3 fixing screws from the bottom of the cover. b. Gently pull out the sides of the cover at the bottom and lift off the top fixing lugs.
  • Page 26 Sigma 7.07 Gas Valve (fi g. 48) a. Remove 4 screws "a" that secure the gas inlet isolation cock to the bottom of the gas valve. b. Remove the full sequence PCB "b" and housing from the gas valve (1 screw) and place to one side.

  • Page 27: Fault Finding

    Sigma 8. FAULT FINDING Before commencing any fault finding procedure on the boiler, ensure electricity is on to the appliance, the gas supply is turned on, purged and is sound, and the system is full of water. Note: in certain condition the fan and overheat thermostat may have 230 v at their terminals, but the fan will not run.
  • Page 28 Sigma During the ignition phase, there is no spark to the electrode No spark to the electrode Check the boiler is connected to the mains and is efficiently earthed Check the safety thermostat Check the electrode is positioned correctly and free...
  • Page 29 Sigma 8.03 General test and fault fi nding chart fan runs boiler does not work 230V at live connection check mains supply of terminal block and fuse eletrode 230V at switched check external sparks live connection of controls terminal block...

  • Page 30: User Instructions

    "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.
  • Page 32 Should you require help with any difficulties call our Technical Service Helpline on 08707 282 885 Phone numbers: Installer Service Engineer BECAUSE OF OUR CONSTANT ENDEAVOUR FOR IMPROVEMENT DETAILS MAY VARY SLIGHTLY FROM THOSE QUOTED IN THESE INSTRUCTIONS. ALL SPECIFICATIONS SUBJECT TO CHANGE Please note - to avoid incurring unnecessary expense, in the event of a boiler shut down, check this in not caused by lack of electricity supply, gas supply or low water pressure before calling our Customer Service Helpline.

This manual is also suitable for:

Sigma 60-100

Table of Contents