Ariston EuroCombi Type C A27 MFFI Servicing Instructions - Page 30

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Ariston EuroCombi Type C A27 MFFI Servicing Instructions
A/23 MFFI - A/27 MFFI (SIT Tandem Gas Valve)
Key
G.C. part
no.
no.
1
379816
11
164 225
14
17
18
164 338
19
23
164 229
24
378 814
25
28
31
44
46
47
57AB
57CD
58
61
72AB
E03 818
72CD
E02 071
75
84
379 079
85
164 230
87
89AB
89CD
90
92
96
164 282
98AB
98CD
101
379 976
103
106
114
379 981
118
164 261
120
379 979
121
379 980
122A
E02 026
122B
122C
E02 078
122D
123AB
123CD
311
321
378 978
322
378 815
164 303
323
361
362
363
364
371
372
373
374
375
164 311
381
382
30
Supplied By www.heating spares.co Tel. 0161 620 6677
Description
Expansion vessel
Gasket 3/4"
Overheat thermostat
Main flow Switch
Temp probe (C.H.W.)
Microswitch for 3-way/main flow group
Gasket 1/2"
Manual vent cock
Safety valve 3 bar 1/2"
Pressure gauge
Time clock
P.C.B. EX C-MI/FFI
P.C.B. EI A-MFFI
P.C.B. cable
Fan
Fan
Fan inlet gasket
Venturi (exhaust manifold/header)
Air pressure switch
Air pressure switch
Fastening spring
Automatic air release valve
Gasket 1"
O-ring
Secondary exchanger (plate-type) exchanger 23kW
Secondary exchanger (plate-type) exchanger 27kW
O-ring (secondary exchanger)
O-ring (20-18)
Gasket 3/8"
Pump
Pump
Gas valve (SIT Tandem)
Spark generator
O-ring (13)
Detection electrode
Gasket 1/4"
Ignition electrode (R.H.)
Ignition electrode (L.H.)
Main burner
Main burner
Main burner
Main burner
Main exchanger
Main exchanger
D.H.W. actuator kit
SIT Tandem gas valve operator coils
SIT Tandem modureg coil
Gas modulator cartridge
Heating by-pass kit
D.H.W. pressure switch kit
3-way spring kit
D.H.W. diaphram valve
Main flow switch diaphram
Main flow switch magnet
Main flow switch spring
Main flow switch top cap
Main flow switch reed system
Burner jet 1.25 full kit (Natural gas)
Burner jet 0.72 full kit (LPG)
ARISTON
Part No.
1
573294
573520
997206
1
1
573224
569236
1
1
573340
573528
573727
1
1
573172
571649
1
1
997207
1
953730
952981
1
1
952610
572989
1
1
572990
1
573343
573314
1
1
571651
571652
1
570717
564254
569387
1
1
571449
571646
573295
1
573825
571807
1
573521
997150
1
1
997151
1
570732
573023
1
571965
573441
1
1
569390
1
569560
569561
1
1
572271
572277
1
572343
1
1
572372
572749
1
1
572835
571444
1
570712
573740
573745
571443
571442
571447
571446
571547
571772
571771
571770
573138
569281
569282
B029