Viessmann Vitotronic 200 Installation And Service Instructions For Contractors page 10

Index
Index
(cont.)
9. Function description
10. Connection and wiring dia-
grams
11. Parts lists
12. Specification
13. Declaration of Conformity
14. Keyword index
10
DE Lead break, room temperature sensor Vitotrol, HC 2 ................... 106
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DF Lead break, room temperature sensor Vitotrol, HC 3 ................... 106
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E0 LON subscriber fault ... ................................................................. 106
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Faults without a fault display .............................................................. 106
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Checking temperature sensors ..............................................................107
Boiler, cylinder, flow and buffer temperature sensors; temperature
■
sensor for low loss header; return temperature sensor (Therm-Con-
trol sensor) and room temperature sensor ......................................... 107
Outside temperature sensor ............................................................... 107
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Flue gas temperature sensor ..............................................................107
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Checking the fuses ................................................................................ 108
Boiler water temperature control ............................................................109
Brief description .................................................................................. 109
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Control functions .................................................................................109
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Boiler protection function: Therm-Control (start-up control) ............... 109
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Boiler protection function: Raising the return temperature via a shunt
■
pump ................................................................................................... 110
Boiler protection function: Return temperature control via shunt
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pump and 3-way mixing valve ............................................................ 110
Control sequence ............................................................................... 110
■
Control of the heating circuits ................................................................ 111
Brief description .................................................................................. 111
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Functions ............................................................................................ 111
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Control sequence ............................................................................... 115
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DHW heating control (cylinder temperature control) .............................. 116
Brief description .................................................................................. 116
■
Functions ............................................................................................ 116
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Control sequence ............................................................................... 117
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Plug-in adaptor for external safety equipment (accessories) ................. 118
Connecting one plug-in adaptor ......................................................... 118
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Connecting 2 plug-in adaptors ............................................................ 119
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EA1 extension (accessories) ................................................................. 120
Digital data inputs DE1 to DE3 ........................................................... 120
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Analogue input 0 10 V ..................................................................... 121
–
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Output ..........................................................................................121
aBJ
■
AM1 extension (accessories) .................................................................122
Functions ............................................................................................ 122
■
Connection and wiring diagram ............................................................. 123
Overview .............................................................................................123
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PCB 230 V~ ........................................................................................124
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PCB, low voltage ................................................................................ 126
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PCB, extension for heating circuits 2 and 3 with mixer ...................... 127
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Ordering parts ........................................................................................129
Vitotronic 200, type CO1E ..................................................................... 130
................................................................................................................132
Declaration of conformity ....................................................................... 133
................................................................................................................134