Technical data

SHR 521 20
© Drayton 06334 SHR 521 20.monen.indd
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S1
S2
S4 / TRF
1.2.1 Allocation of terminals for system 1 Standard solar system with 1 store, 1 pump and 3 sen-
sors. The sensor S4 / TRF can optionally be used for heat
quantity balancing.
R1
Arr 1
S3
R2
S1
S2
R1
S3
S4 / TRF
Solar system and dual-mode DHW cylinder with 1
store, 3 sensors and backup-heating. The sensor S4 / TRF can
optionally be used for heat quantity balancing.
Arr 2
1.2.2 Allocation of terminals for system 2
Symbol Specification
S1 collector sensor
S2 store sensor lower
S3 store sensor upper
S4 / TRF sensor for heat quantity
balancing (optional)
R1 solar pump
R2 pump for heat exchange
Symbol Specification
S1 Collector sensor
S2 Store sensor lower
S3 Store sensor upper
(optional)
S4 / TRF Sensor for heat quantity
measurement (optional)
R1 Solar pump