Viessmann VITOTRONIC 300-K Operations Instructions download pdf (Page 13)

5693 976 - 04

Vitotronic 200 and 300-K Installation and Service

Installation Sequence

Overview of Electrical Connections, Vitotronic 300-K

Electrical connections on the Vitotronic 200

see installation instructions, Vitodens 200-W.

Legend

PCB, extension for heating circuits 2 and 3 (accessory)

? M2/M3 Supply temperature sensor

sÖ M2/M3 Heating circuit pump

gS M2/M3 Mixing valve motor

Main circuit board, low voltage

! Outside temperature sensor

§/? Common supply/ low loss header,

temperature sensor

%A DHW tank temperature sensor

%B DHW tank temperature sensor 2 for primary

store system (accessory)

aJB Temperature sensor primary store system

(accessories)

aVD External hook-ups

aVG KM BUS participant (Vitotronic 200 and

accessories, e.g. Vitotrol remote controls)

aVH External hook-ups

LON LON BUS, connecting cable for data exchange

with the

Vitotronic 200-H and the

Vitocom

Main PCB 120V~

sÖA1 Heating circuit pump

Primary pump, primary store system

sA DHW pump

sK DHW recirculation pump

sL System pump

fÖ Power supply

gÖ Central fault message

gSA1 Motor for 3-way mixing valve, primary store

system

aBH Internal power supply for mixing valve extension

PCB

With

accessory

module

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 95 96

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Viessmann VITOTRONIC 300-K Operations Instructions Page 13

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