TECH ST-431, User Manual, Page: 20 / 24

ST-431 – user manual
V. Maintenance
In controller TS-431 , before the heating season and throughout its
duration, technical condition of wires should be checked. Fastening of the
controller should be also checked, it should be cleaned from dust and other
dirt.
Technical data
Temperature control range 8 o C : 90 o C
Power supply voltage 230V/50Hz +/- 10%
Power consumption max. 4W
Temperature endurance of the sensors -25 o C : 95 o C
Ambient temperature 5 o C : 50 o C
Load at each outlet 0,5A
Fuse insert 1,6A
! ATTENTION !
In the case of the lack of flow in the short circulation of the
boiler (improperly mounted system), the return sensor should
be placed at the outlet of hot water from the boiler, to prevent
its boiling.
VI. Mounting
ATTENTION: Installation should be performed by a person with relevant
authorizations! At that time, the device cannot be live (make sure that
the plug is disconnected from the network)!
Connection of wires
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