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Safety Instructions
2.3 Do not separate the controller from the mains
2.4 Electric installation
2.5 Cable dimensions
2.6 Maximum cable length
2.7 Cable installation
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If this happens, the back-up battery will be unnecessarily
stressed. In addition, the frost protection functions of the
controller will be out of order.
Qualified personnel must carry out all electrical
connections.
1.5 mm² for all 230 V cable (power supply, burner,
pumps, actuators).
0.5 mm² for sensors, selectors, bus and analogue in- and
outputs.
Sensors selectors and analogue inputs
A maximum cable length of 200 meters is recommended.
Longer distances are possible but increase the risk of
interferences.
Relay outputs
Unlimited cable length.
Bus connections
A maximum cable length of 100 meters is strongly
recommended.
Cables for 230 V must be installed separate from low
voltage (sensor selector bus) cables.
5
SDC / DHC 43
EN2H-0220 GE51 R1005
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