System Layout - Viessmann Vitocrossal 300 Series Technical Data Manual

For operating with natural gas and liquid propane gas

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Installation Examples

System Layout 1

Vitocrossal 300 CU3A with a direct-connected heating circuit

Legend

A Vitocrossal 300 CU3A boiler with

Vitotronic 200, KW6B outdoor reset control

B Outdoor temperature sensor !

C Vitotrol remote (optional)

D Heating circuit

E Heating circuit pump

F DHW pump sA

G DHW storage tank

H DHW tank temperature sensor %

I Expansion tank

J DHW recirculation pump

K Temperature and pressure relief valve

L Pressure relief valve

Function based on coding of address 53

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Vitocrossal 300 CU3A 26 to 199 Technical Data

Installation of ...

radiator heating circuit (high-temp. circuit)

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DHW production

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