Ariston 20/1 MFS, Installation And Servicing Instructions

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PART CODE DESCRIPTION REF. NOTE
94 407654 Pipe (expansion vessel to deviator)
95 407514 O ring 9.25 x 1.78 mm
96 407651 Gasket 3/4"
97 407668 Pipe (main exchanger to deviator)
100 407659 O ring 17.04 x 3.53 mm
101 407672 Ring kit (inc. 107,109)
102 407521 Gasket (N.T.C. probe)
103 407522 N.T.C. probe
104 407671 Tang kit (inc. 105)
106 407659 O ring 17.04 x 3.53 mm
107 407672 See key 101
108 407658 O ring 20.22 x 3.53 mm
109 407672 See key 107
110 407667 Manual vent cock (inc. 111)
111 407663 O ring 2.90 x 1.78 mm
112 407709 Pipe (inlet main circuit)
113 407656 Pipe (outlet main circuit)
114 407665 O ring 18.64 x 3.53 mm
115 407660 Main circuit flow switch
117 407626 Collar kit (inc. 118)
119 407533 See key 6
120 407652 Pipe (main exchanger to cochlea)
121 407663 O ring 2.90 x 1.78 mm
122 407664 Drainage cock (inc. 121)
123 407651 Gasket 3/4"
124 407650 Main heat exchanger
125 407553 Burner (inc. 133)
127 407629 Electrode
130 407629 Electrode
134 407574 Jet kit nat gas x 14
140 407560 O ring 26.58 x 3.53 mm
145 407560 O ring 26.58 x 3.53 mm
147 407631 Gas valve SIT nova 827
149 407694 Cable (gas val. Coils to ign. P.C.B.)
150 407693 Cable (gas val. ,ign p c b to reg P.C.B.)
151 407627 Gas valve mod reg
154 407680 Cable (det. ele. ,fan, air press. switch to reg P.C.B.)
155 407642 Cable (ignition electrode to regulation P.C.B.)
158 407512 Gasket 1/2"
160 407512 Gasket 1/2"
161 407512 Gasket 1/2"
163 407651 Gasket 3/4"
165 407651 Gasket 3/4"
166 407651 Gasket 3/4"
169 407703 Safety valve (inc. 160,161)
174 407651 Gasket 3/4"
178 407512 Gasket 1/2"
182 407512 Gasket 1/2"
185 407512 Gasket 1/2"
187 407512 Gasket 1/2"
188 407651 Gasket 3/4"
190 407651 Gasket 3/4"
192 407651 Gasket 3/4"
200 407704 Control panel (inc. 202,203,204,205,215,216,217,
218,219,220,222,223,228,229,230,231,232,233)
201 407679 P.C.B. (full sequence control)
208 407685 Reset push button (inc. 225)
209 407702 Overheat thermostat
210 407591 Thermomanometer
212 407696 Mains supply cable
213 407584 Fuse (0.08 amp)
214 407585 Fuse (1.60 amp)
221 407580 P.C.B. (regulation)