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REGULUS SRS6 EP Controller - www.regulus.eu
C 3 - Installing the temperature sensors
The controller operates with Pt1000 temperature sensors.
The temperature sensor cables must be routed separately from mains voltage cables.
Max. sensor lead length for S1 and S5 is 30 m and its cross section at least 0.75 mm
2
. Max. sen-
sor lead length for S2 to S4 is 10 m and its cross section at least 0.75 mm
2
. Make sure there is no
contact resistance in the wiring!
Make sure that the terminals of extension cables and sensors are properly tightened. Use only
immersion or pipe-mounted sensors.
The VFS shall be connected to the solar return. Observe the correct
fl
ow direction of solar
fl
uid
and its max. permissible temperature range (-40 °C to +100 °C, -2 5°C to +120 °C in short term).
The
fl
owmeter cables must be routed separately from mains voltage cables!
Caution
Caution
Caution
Caution