20
Additional functions
ź
After batteries are installed, the controller displays the
temperature from the external temperature sensor.
ź
When the external sensor is connected (the terminal block is
located under the enclosure), the controller automatically takes
the readings from that sensor.
ź
If the external sensor is disconnected or defective, the
controller goes into the emergency mode (dashes are shown as
the measured temperature), which results in the CH pump
shutting down until the defect is eliminated. This is intended to
p r o t e c t t h e h e a t i n g s y s t e m f r o m o v e r h e a t i n g .
In order to leave the emergency mode, connect the external
temperature sensor back or reset the controller by taking out
the battery until the display switches off. After this procedure is
completed, the controller displays the temperature measured
by the internal sensor.
21
Wiring diagram showing the connection
of the CH pump to the RTH receiver
approx. 230 V AC
L
N
L
N
max. approx. 230 V
central
heating
boiler
temperature
sensor
pump
controller
RTH receiver
Summary of Contents for S03 RTH
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