Viessmann Vitopend 100-W Installation And Service Instructions For Contractors page 58

Parts lists
Hydraulic assembly, system boiler
0001 Air vent valve
0002 O-ring 34 x 3 (5 pce)
0004 Gasket set, plate heat exchanger
0008 Pump motor
0009 Bypass cartridge
0012 Clip Ø 16 (5 pce)
0014 Stepper motor adaptor
0015 Linear stepper motor
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0016 Oval cap seal (5 pce)
0020 Hydraulics
0021 O-ring 19.8 x 3.6 (5 pce)
0022 O-ring 16 x 3 (5 pce)
0023 Check valve
0026 Clip Ø 18 (5 pce)
0031 O-ring 17 x 4 (5 pce)