Viessmann SCU224 Manual de servicio descargar pdf (Pagina 6)

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SCU224

R2

S1

S2

R1

S3

S4 / TRF

1.2.4 Wiring connections for system 3 Solar system and after-heating with 1 tank, 3 sensors

and after-heating. Sensor S4 / TRF can optionally be used for

heat quantity balancing.

Arr 3

S1

S3

S4

R1

R2

S2

1.2.3 Wiring connections for system 2

Solar system and heat exchange with an existing

tank with 1 tank, 4 sensors and 2 pumps.

Arr 2

Tank 1

Tank 2

Symbol Speciﬁcation

S1 Collector sensor

S2 Tank sensor lower

S3 Tank sensor at the top

S4 Tank Sensor 2

R1 Solar pump

R2 Pump for heat exchange

Symbol Speciﬁcation

S1 Collector sensor

S2 Tank sensor lower

S3 Tank sensor at the top

S4 / TRF Sensor for heat quantity

balancing (optional)

R1 Solar pump

R2 Pump for heat exchange

1 2 3 4 5 6 7 8 9 10 11 ... 23 24

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