Ferroli SIGMA Installation And Servicing Instructions page 27

Wall mounted cast iron, gas fired boiler for central heating fan assisted, room sealed, electronic flame ignition and control

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Before commencing with the replacement of any parts, ensure the gas and electricity are isolated.

7.01 Boiler exploded view

S or Spare

De crip ion

Fan assembly (Sigma 0-40, 40-60)

Injector Plate 3.00 (NG) Sigma 0-40

Injector Plate 1.80 (LPG) Sigma 0-40

Injector Plate 3.60 (NG) Sigma 40-60

Injector Plate .30 (LPG) Sigma 40-60

Flow emperature Sensor N

Air Pressure Switch (all models)

Gas al e oneywell

erheat hermostat (all models)

Full Se uence ontrol PLB (all models)

Sigma

ig.

. (all models)

410 A 109 1

(all models)

PART

800480

806 96

806 98

806

806 8

8060 1

8001 0

806 6

801 40

8066 9