Designs; Internal Connection Diagram - Viessmann VITODENS 222-F Installation And Service Instructions Manual
Compact gas condensing boiler 4.8 to 35 kw natural gas and lpg version gc no 47-819-15 (19kw); 47-819-16 (26kw); 47-819-17 (35kw)
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Also See for VITODENS 222-F:
- Installation and service instructions manual (172 pages) ,
- Installation and service instructions for contractors (156 pages) ,
- Technical manual (156 pages)
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Internal connection diagram
A1
Main PCB
X...
Electrical interfaces
§
Boiler water temperature sensor
$
Outlet temperature sensor
aA
Ionisation electrode
aG
Flue gas temperature sensor
dÖ
Stepper motor for diverter valve
fJ
Thermocouple
gF
Ignition unit
a-Ö
Fan motor
a-ÖA Fan motor control
a:Ö
Modulation coil
Designs
129
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