System Example - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Vitotronic 200, HO1B and 300-K, MW2C Installation/Service

System Example

Multi boiler system with several heating circuits with
mixing valve and low loss header (with/without DHW
heating)
Legend
1 Multi boiler system with 2 to 8 Vitodens 200-W or
Vitocrossal 300 CU3A hydraulic cascade with low
loss header and connection accessories
with
2 Vitodens 200-W/Vitocrossal 300 CU3A in cascade mode
5 Vitodens 200-W/Vitocrossal 300 CU3A in cascade mode
3 Cascade communication module (KMK or LON)
4 Internal extension H1
6 Vitotronic 300-K
7 Outside temperature sensor ATS
qP Indirect DHW storage tank
qQ DHW temperature sensor
qW DHW recirculation pump
qZ DHW pump
Note: Multiboiler systems can only be made up of the
same boiler type and size. Mixing boiler types and
sizes is not permitted.
Note: This scheme is a basic example without
shut-off valves or safety equipment.
This does not replace the need for local
engineering.
rP Heating circuit with mixing valve
rE Supply temperature sensor, heating circuit M2/M3
rR Heating circuit pump, heating circuit M2/M3
and
3-way mixing valve
rT Mixing valve motor kit for heating circuit with mixing
valve (mixing valve motor and supply temperature
sensor rE)
tP Low loss header
tQ Common supply temperature sensor
tW Boiler pump
tE Boiler pump
Preparing for Installation
7