Operating instructions

184

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Connecting cable for data

exchange (accessory)

S3 Emissions test switch

V1 Fault indicator (red)

V2 ON/OFF indicator (green)

X Electrical interfaces

PCB, extension for heating circuits 2 and 3 with mixer

Flow temperature sensors

sÖ

Heating circuit pumps

fÖ

Power supply

Mixer motors

K1-K6 Relay

X Electrical interfaces

Schemes, Vitotronic 300-K

Connection and wiring diagram

(cont.)

5815 091 GB