INDEX. - Versions and exploded drawing of ECO 20 p pages Versions and exploded drawing of ECO 20 i pages 4-5

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3 INDEX - Versions and exploded drawing of ECO 20 p pages Versions and exploded drawing of ECO 20 i pages Versions and exploded drawing of ECO 20 Fp pages Versions and exploded drawing of ECO 20 Fi pages port valve and Venturi group exploded drawings page 10 - Spare parts codes and description pages Evolution of components (modifications/interchangeability) pages 14-15

13 WALL HUNG GAS BOILERS: ECO June 2000 ECO ECO ECO ECO Pos. 20 p 20 i 20 Fp 20 Fi Description Note CSB CSB CSB CSB Tab. 1, 5 Tab. 2, 5 Tab. 3, 5 Tab. 4, LATERAL REAR SUPPORT LEFT PANEL RIGHT PANEL FRONTAL PANEL UPPER TRAVERSE LOWER TRAVERSE FRONTAL TRAVERSE PRESSURE PIPE L RESTRICTOR FLANGE GASKET (RUBBER) ex ASPIRATION CAP GASKET (RUBBER) ex TOP PANEL JOINT ASSEMBLY (WITH GASKET AND SCREWS) JOINT GASKET CONVEYOR BEND 45 ASSEMBLY (with Venturi) PLASTIC FLUE VENTURI * 5 * FAN - FIME (1 speed) FAN - NATALINI (1 speed) FAN - FIME (2 speed) Fan Pressure Switch Tridelta (interch.with Hon.) ex Fan Pressure Switch Honeywell (interch. with Tridelta) PRESSURE PIPE L CONVEYOR SEALED CHAMBER COMBUSTION CHAMBER LATERAL INSULATING PANEL REAR INSULATING PANEL FRONTAL INSULATING PANEL COMBUSTION CHAMBER FRONT PLATE PRIMARY EXCHANGER AND CLIPS O-RING 17,86x2, PRIMARY EXCHANGER FIXING CLIP EXPANSION VESSEL EXPANSION VESSEL PIPE SEALED CHAMBER FRONT PANEL PILOT SIGHT GLASS GASKET PILOT SIGHT GLASS PILOT SIGHT SECURING PLATE BURNER ASSEMBLY BURNER ELEMENT GAS RAMP WITH INJECTORS (N.G.) NATURAL GAS INJECTOR D.1,18 (ex ) L.P.G. INJECTOR D.0, GAS RAMP GASKET (until 06/00: not interch.) GAS RAMP CONNECTION (until 06/00: not interch.) GASKET (GAS RAMP/SEALED CHAMBER) BURNER TRAY (ex ) PILOT BURNER WITH N.G. INJECTOR PILOT PROTECTION PILOT INJECTOR D. 0,27 (NATURAL GAS) PILOT INJECTOR D. 0,14 (L.P.G.) DOUBLE CONE CONNECTION TO PILOT PILOT PIPE CONNECTION TO THE PILOT PILOT PIPE PILOT PIPE CONNECT. TO HONEYWELL G.V THERMOCOUPLE for Hon. G.V.(not interr.) 11

14 ECO ECO ECO ECO Pos. 20 p 20 i 20 Fp 20 Fi Description Note CSB CSB CSB CSB Tab. 1, 5 Tab. 2, 5 Tab. 3, 5 Tab. 4, ELECTRODE (for pilot version) ELECTRODE CABLE GASKET (IGN. GROUP / SEAL. CHAMBER) ELECTRODE PROTECTION CAP SEALED CHAMBER HOSE ADAPTER ASSEMBLY * 7 * IGNITION ELECTRODE (RIGHT) ex IGNITION ELECTRODE (LEFT) ex IONIZATION ELECTRODE ex PUSH BUTTON PIPE (PUMP/PRIMARY EXCHANGER) GASKET G PUMP (Grundfos UPS 15-50) PUMP (WILO RS 15/5-3) AUTOMATIC AIR VENT VALVE O-RING (AIR VENT VALVE) ex GASKET (WATER PIPE/SEALED CHAMBER) DHW PLATE EXCHANGER DHW PLATE EXCHANGER GASKET HYDRAULIC INLET GROUP FILTER AND VENTURI ASSEMBLY VENTURI DHW RESTRICTOR 8 L/min.-optional (KHG ) FILTER (ex not interchangeable) * 9 * O-RING 20,63X2, BRASS BODY (HYDRAULIC CONNECTION) PUMP CONNECTING ELEMENT FILLING TAP DRAIN TAP (ex ) HYDRAULIC SAFETY VALVE 3 bar PRESSURE PIPE (POSITIVE) PRESSURE PIPE (NEGATIVE) BY-PASS PIPE BY-PASS PIPE CLIP OR 13,94x2,62 (ex ) P.VALVE/PRESS./SENSOR ASSEMBLY (ex ) * 12 * PORT VALVE/PRESSOSTAT GROUP (ex ) * 12 * DHW PRESSOSTAT SANITARY OUTLET CONNECTION O-RING 17,86x2, SCREW M5X PIN GUIDE ASSEMBLY SCREW M4X SPRING PLATE DIAPHRAGM 3 PORT VALVE (main circuit) BY-PASS ASSEMBLY SPRING REAR PLUG ASSEMBLY (Heating) ex * 12 * FRONTAL PLUG GROUP (ex ) * 12 * FRONTAL PLUG ASSEMBLY (ex ) * 12 * O-RING (for plug) 13,6x2, SCREW SPRING PIN PLATE DIAPHRAGM DHW PRESSOSTAT O-RING PIN GUIDE P.V.MICROSWITCH ASSEMBLY 12

15 ECO ECO ECO ECO Pos. 20 p 20 i 20 Fp 20 Fi Description Note CSB CSB CSB CSB Tab. 1, 5 Tab. 2, 5 Tab. 3, 5 Tab. 4, NTC SENSOR (quick variation version) NTC GASKET DHW PRESSOSTAT MICROSWITCH (ex ) LIMIT THERMOST. 105 C (with manual reset) PIPE (3 PORT VALVE/EXCHANGER) GAS BURNER PIPE (for Hon. and Sit Nova) GAS BURNER PIPE ( for SIT Tandem G.V.) OR 28,24x2,62 (for Hon. and Sit Nova) OR 22,22x2,62 (for Sit Tandem) GAS INLET CONNECTION HON./SIT NOVA GAS INLET CONNECTION SIT-TANDEM GAS VALVE(HONEYWELL) GAS VALVE(SIT-TANDEM) ELECTRIC MODUL.COIL AND CLIP (for Hon. / Nova) ELECTRIC MODUL. COIL FOR SIT TANDEM ELECTRIC COIL FIXING SPRING (for Hon. and Nova) MODUL.PIVOT H./N. (ex )(with spring ) MODULATING PIVOT FOR SIT TANDEM GAS VALVE SPRING H./N.(Natural Gas)(ex ) GAS VALVE SPRING H./N. (L.P.G.) GAS VALVE HOSE ADAPTER (for Honeywell) IGNITION MICROSWITCH with cable (only micr.: ) * 8 * CONNECTION TRAVERSE REGULATION DEVICES COVER ELECTRIC BOX REAR COVER (ex ) ELECTRIC BOX GASKET (1 piece) CONTROL PANEL (BAXI BRAND) JUNCTION COVER MODULATING PCB -Ineco (SMD-not pred.for rem.control) * 1 * IONIZATION P.C.B. - Ineco (SMD) * 1 * P.C.B. PROTECTION OFF/SUMMER/WINTER SWITCH JUNCTION FUSEHOLDER FUSE 2A - 250V THERMAL PRESSURE GAUGE TERMAL PRESSURE GAUGE SUPPORT SUPPRESSOR START P.C.B. * 8 * POTENTIOMETER KNOB POTENTIOMETER KNOB PIN SELECTOR SWITCH KNOB SELECTOR SWITCH KNOB PIN GAS VALVE KNOB GAS KNOB SPRING FIXING KNOB ELEMENT GAS VALVE KNOB ADAPTER (Honeywell) PIEZO IGNITOR PIEZO IGNITOR GASKET GASKET 6,1x11,5x1,5 (ex ) GASKET G. 1/2 12x18x GASKET G. 3/4 17x24x CONNECTION ASSEMBLY (optional) DRAUGHT DIVERTER FLUE SAFETY TH. 70 C (with manual reset) ex GAS VALVE ELECTRIC DOUBLE COIL (for Sit Tandem) MOLIKOTE GREESE INJECTORS KIT (FOR L.P.G.) INJECTORS KIT (FOR NATURAL GAS) 13

16 MODIFICATIONS OF COMPONENTS POSSIBILITY OF INTERCHANGEABILITY * 1 * Printed Circuit Boards (P.C.B.) MODULATION P.C.B. ECO 20 p and ECO 20 i (conventional flue system) - First and second versions: till February 97: code (SIT brand); from March 97: code (INECO brand); SIT and INECO were interchangeable. - Third and fourth versions: code (INECO brand), not interchangeable with the previous versions. ECO 20 Fp and ECO 20 Fi (fanned flue system) - First and second versions: till February 97: code (SIT brand); from March 97: code (INECO brand); SIT and INECO were interchangeable. - Third and fourth versions: code (INECO brand), not interchangeable with the previous PCBs. IONIZATION P.C.B. ECO 20 i - First and second versions: till March 97:code (SIT brand) and code (INECO brand) alternatively; from April 97 to December 97: the INECO P.C.B. has changed (code instead of > interchangeable); from January 98 to April 99: the INECO P.C.B. has changed (code instead of > interchangeable); from May 99: the INECO P.C.B. has changed (code instead of > interchangeable). - Third and fourth versions: till January 99: code (INECO brand); from February 99: code (INECO brand) interchangeable with the previous PCB. ECO 20 Fi - First and second versions: till March 97:code (SIT brand) and code (INECO brand) alternatively; from April 97 to December 97: the INECO P.C.B. has changed (code instead of > interchangeable); from January 98 to April 99: the INECO P.C.B. has changed (code instead of > interchangeable); from May 99: the INECO P.C.B. has changed (code instead of > interchangeable). - Third and fourth versions: till January 99: code (INECO brand); from February 99: code (INECO brand) interchangeable with the previous PCB. 14

17 * 5 * Flue Venturi ECO 20 Fp and ECO 20 Fi - First, second and third versions: till September 96: code (aluminium) from October 96 to December 97: code (nickel-plated brass) from January 98: code (ryton) All the above codes are interchangeable. - Fourth version: till December 98: code (ryton) from January 99: code (ryton, double pipes), not interchangeable with the previous version (to replace an old Venturi with the new one you need to replace also the conveyor bend -> code of the conveyor bend 45 -Venturi assembly: ). * 7 * Sealed chamber hose adapter assembly Starting from the production of October 97 the sealed chamber hose adapter changed as follows: - The old version includes the pressure control point element code and the hose adapter M6 code (as spare parts they can be supplied separately) - The new version code is an assembly that includes pressure point element, hose adapter and fixing nut. The two versions are interchangeable increasing the hole on the sealed chamber. * 8 * Ignition microswitch and start P.C.B. (ECO 20 Fp) Starting from the production of September 97 on ECO 20 Fp boilers there were the following modifications: - Ignition microswitch group code has been replaced with a new one code (The two components are not interchangeable). - The delayed ignition spark generator code has been replaced with the new start P.C.B. code (The two components are not interchangeable). - Starting from the production of the third version of ECO 20 Fp (March 98) the start P.C.B. code has been replaced with a new one code (The two components are not interchangeable). * 9 * Cold water filter (Positioned inside the hydraulic Venturi group) Starting from the end of January 98 the cold water filter (position n. 84 tab. 5 Venturi Group) changed as follows: - old code: => new code (not interchangeable) - the filter/venturi assembly did not change code number (pos. 81 code ) and remains interchangeable. * 12 * Three port valve Starting from October 97 the 3 port valve paddles (rear plug and frontal plug) changed from plastic to brass. The pieces are interchangeable, codes are the following: Position Old code New code Description Interchangeability port valve/pressostat/sensor assembly Yes port valve/pressostat group Yes Rear plug assembly Yes Frontal plug group Yes Frontal plug assembly Yes 15

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SPARE PARTS LIST - July

Versions for CANADA SPARE PARTS LIST - July 2005 - HOW TO READ THE SPARE PARTS CATALOGUE In the spare part catalogue, after the exploded diagrams, there are the components lists of the boilers; this is