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Vitotronic 300, GW2B Installation and Service
Connection and Wiring Diagram, Type GW2B
(continued)
Designs
Legend
?
Supply temperature sensors
sÖ
Heating circuit pumps
fÖ
Power supply
PCB, extension for heating circuits 2 and 3 with mixing valve
gS
Mixing valve motors
K1-K6 Relay
X
Electrical interfaces