Ariston - DIA 20 MFFICE

SPARE PARTS EXPLODED VIEW
WALL-HUNG GAS BOILERS
Models
DIA 20 MFFI CE
DIA 24 MFFI CE
Edition 2
MODELS
CODE
SERIAL NO.
VALIDITY
REF.
DIA 20 MFFI CE
DIA 20 MFFI CE LPG
533632
533633
From 96010000 to ------------From 96010000 to -------------
A
B
DIA 24 MFFI CE
DIA 24 MFFI CE LPG
534028
534029
From 96010000 to ------------From 96010000 to -------------
C
D
12
51
50
49 48
47
38
37
39
136
1
58
92
52
53
57
93
59
94
2
94
41
91
40
60
36
46
43
43
42
44
90
45
6
62
61
62
3
3
61
4
89
63
64
65
69
65
35
88
95
87
110
5
67
6b
34
86
6
110
7
6a
97 109
96
8
9
71
8
72
10
11
8
73
12
8
76 73
12
8
73
13
15
101
21
115
13
106
8
33
82
105
103
104 77
8
80
73
84
102
101
77
74
56 55
83
85
112
99
73
73
78
14
113
114
100
111
13
108
107
98
70 110
70
32
81
81
31
75
16
201
17 21
18
19
20 21 22 21 23
8 24
25
26 27 28 29 30
202
20/24 MFFI CE
PART
1
2
3
4
5
6
6a
6b
7
8
9
10
11
12
13
14
14
15
16
17
18
19
20
21
22
23
24
24
25
26
27
28
29
30
31
32
33
34
35
35
36
37
38
39
40
41
42
43
44
45
46
47
47
48
49
50
51
51
52
53
53
CODE
564492
570805
565128
573531
573530
571963
569192
566093
569604
573520
572381
570575
564254
573521
569387
570590
570931
570533
570932
569292
570454
570751
571119
569390
573727
570605
570449
570450
570593
569421
569422
560171
569423
569424
571832
571672
571829
571696
569605
569606
569474
569657
569656
569655
569476
569475
569473
569470
569471
569469
569472
569431
573434
569433
569434
572382
571844
571845
571635
571651
571652
DESCRIPTION
Expansion vessel
Boiler frame
Fastening spring
Brass nipple 1/2"
Securing nut 1/2"
Holder for control panel
Left hand side hinge
Right hand side hinge
Earth symbol
Gasket 3/4"
Grill
Pipe (expansion vessel)
Automatic air release valve
Gasket 3/8"
Gasket 1"
Pump
Pump
C.H. flow return group
Drainage pipe
Safety valve
Pipe (C.H. flow)
Pipe (D.H.W. inlet)
Pipe (upper main flow switch)
Gasket 1/4"
Drain cock
Pump pressure switch
Pipe (C.H.W.)
Pipe (C.H.W.)
Main power supply cord
Control knob
Plastic plug
Wired reset button
Summer/winter switch
On/off switch with neon
Temperature pressure gauge
Control panel
Overheat thermostat
Wiring loom
Sealed chamber front panel
Sealed chamber front panel
Female insert R.H. hinge
Frontal casing panel
L.H. casing panel
R.H. casing panel
Plastic insert
Female insert for L.H. hinge
Female insert housing L.H. hinge
Hinge pivot
Case door insert
Case door
Female insert housing R.H. hinge
Fan
Fan
Fan seal
Collar for venturi device
Venturi device
Sealed chamber cover
Sealed chamber cover
Air pressure switch bracket
Air pressure switch
Air pressure switch
55
572660
Radio suppressor
REF.
AB
CD
AB
CD
AB
CD
AB
CD
AB
CD
AB
CD
NOTE
PART
56
57
CODE
571790
571574
DESCRIPTION
Radio suppressor bracket
Silicone pipe - negative signal
59
59
60
60
61
62
63
63
64
65
67
573723
573724
571791
571792
569201
569454
571611
571789
569457
569458
570474
Back insulation panel
Back insulation panel
Sealed chamber back support
Sealed chamber back support
Spring clip
Sealed chamber side panel
Sealed chamber lower cover
Sealed chamber lower cover
Inspection plate (detection election)
Cable holders
Panel (combustion chamber L.H.)
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
89
90
90
91
91
92
92
93
94
95
95
96
96
96
96
97
98
98
99
100
101
102
103
104
105
106
107
571612
573720
570719
570453
573528
570491
569259
570640
569236
566098
570788
570565
571565
691150
569391
570933
569538
569442
573567
573566
572647
572648
573721
573722
570518
570519
569429
573048
572168
570561
569487
569562
572271
572343
572272
572344
570608
570248
570251
560166
572698
569254
570732
570750
569462
950331
573576
573441
Inspection plate (three hole)
Side insulation panel
Pipe (pump - to main exchanger)
Pipe (sec. exchanger to C.H. return group)
Gasket 1/2"
Plug female 3/8"
Plug male 1/4"
Pipe (D.H.W.)
Temp probe
Secondary exchanger
Plastic cap
Multifunctional hydraulic connector
Phial clip
Potentiometer
Main power supply cord clamp
Time clock support
Time clock (digital)
View window seal
View window glass
View window holder
Panel (combustion chamber front)
Panel (combustion chamber front)
Front insulation panel
Front insulation panel
Flue hood
Flue hood
Fan support plate
Fan support plate
Fan supply cord
Fan power supply cord clamp
Main exchanger
Main exchanger
Burner (natural gas)
Burner (natural gas)
Burner (LPG)
Burner (LPG)
Spring clips for electrodes
Burner jet (1.25mm)
Burner jet (0.72mm)
Divertor valve
Pipe (gas valve to burner)
Gas valve gasket
Gas valve (sit tandem)
Pipe (gas inlet)
Lower P.C.B. support
P.C.B.
Compensation tube
Detection electrode
REF.
AB
CD
AB
CD
AB
CD
AB
CD
AB
CD
AB
CD
AB
CD
AB
CD
A
C
B
D
A
B
NOTE
PART
108
109
110
111
112
113
114
115
116
117
117
118
119
CODE
569560
570473
569443
569172
569451
569561
569503
570446
570712
569281
569282
571409
570741
DESCRIPTION
Ignition electrode (R.H.)
Panel (combustion chamber R.H.)
Silicone seal
Micro switch (single)
Pushing cap
Ignition electrode (L.H.)
Cable (ignition electrode)
Gas valve support
Sit tandem operator coils
Burner jet (1.25mm) full kit
Burner jet (0.72mm) full kit
Bolts and expansion caps full kit
Wall hanging bracket
122
123
124
125
570809
571000
570813
570812
Paper wall template
Valve kit: gas cock
Valve kit: D.H.W. outlet pipe
Valve kit: D.W. inlet pipe
126
570743
Valve kit: D.W. inlet cock
127
129
570818
570817
Valve kit: gas inlet pipe
Valve kit: C.H. flow-return pipe
131
573740
Sit tandem modureg coil
136
570738
Full case assembled
201
202
950030
573745
Fast fuse 2AT
Gas modular cartridge
371
372
373
570714
570713
573824
Service kit (main flow switch)
Micro switch (main flow switch)
Retaining clip (main flow switch)
REF.
NOTE
AC
BD
PART. NOTIFICATION OF CHANGES
Spares listed below are not interchangeable with those in Ed.1
20
34
51
51
53
53
55
56
57
60
60
63
63
69
72
81
93
571119 - Pipe (main flow switch - upper)
571696 - Wiring loom
571844 - Cover (combustion chamber - DIA 20)
571845 - Cover (combustion chamber - DIA 24)
571651 - Air pressure switch (DIA 20)
571652 - Air pressure switch (DIA 24)
572660 - Radio suppressor
571790 - Bracket (radio suppressor)
571574 - Tube (air pressure switch - negative)
571791 - Support (sealed chamber - rear - DIA 20)
571792 - Support (sealed chamber - rear - DIA 24)
571611 - Lower cover (sealed chamber - DIA 20)
571789 - Lower cover (sealed chamber - DIA 24)
571612 - Inspection plate
570453 - Pipe (sec. exchanger - CH return group)
571565 - Phial clip
572168 - Fan supply cable
- replaces code 570664 from serial number: 96010000
- replaces code 570748 from serial number: 96010000
- replaces code 570550 from serial number: 96010000
- replaces code 997224 from serial number: 96010000
- replaces code 570549 from serial number: 96010000
- replaces code 573452 from serial number: 96010000
- not listed on original drawing
- not listed on original drawing
- replaces code 569863 from serial number: 96010000
- replaces code 570612 from serial number: 96010000
- replaces code 571264 from serial number: 96010000
- replaces code 570551 from serial number: 96010000
- replaces code 570552 from serial number: 96010000
- replaces code 569459 from serial number: 96010000
- replaces code 571565 from serial number: 96010000
- replaces code 570543 from serial number: 96010000
- replaces code 570591 from serial number: 96010000