Viessmann Vitotronic 200 Installation And Service Instructions For Contractors page 20
Weather-compensated control unit
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Also See for Vitotronic 200:
- Service instructions manual (336 pages) ,
- Installation and service instructions manual (132 pages) ,
- Operating instructions manual (109 pages)
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Electrical connections
Overview of electrical connections
Plug
aBÖ
aBA
aBH
Connecting extension for heating circuits 2 and 3 (accessories)
40
Fig. 10
20
(cont.)
Component
The following functions:
External safety equipment
■
Provisional burner operation
■
Safety chain (potential-free)
Mains connection for accessories
X4
156
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