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2 Safety
2.3.2 Installation Notes
• Always lay the high-voltage ignition conductor separately and as far away as possible from
the device and the other conductors.
• Observe the relevant local and national regulations when wiring the electrical cables within
the burner.
• Tighten the screw terminals using a tightening torque >0.5Nm.
• Supply the feed cable with L, N and PE only. The N neutral conductor must not have po-
tential difference to the PE protective conductor.
• The pre-fuse on CMS is permitted to be max. 8 A fast-acting per output module (MCC and
output module).
• Ensure that strain relief of the connected conductors complies with relevant standards
(e.g. DIN EN 60730 and DIN EN 60 335).
• Ensure that no spliced strands can come into contact with any of the adjacent connec-
tions. Use suitable end splices.
• To replace or disconnect the plug-in connectors, all poles of the plant must be disconnect-
ed from the mains.
• The connection between the actuating drives and actuator devices for the fuel and com-
bustion air, as well as to any additional actuator devices that may be in use, must be pos-
itive locking.
• When wiring components with protective extra low voltage (SELV), and in connected de-
vices, make sure there is a safe separation to the mains voltage.
• Only connect passive or non-interacting devices to the CMS firing rate outputs (e.g. relay
without additional power supply). In the event of a fault, a supply of 230 V must be exclud-
ed to the CMS via these terminals.
• Use gold-plated silver contacts on 24 VDC inputs.
• To avoid faults on the LSB, the termination via P 1010 must be switched to active on the
first and last device connected to the bus.
• Via installation of the CMS modules, the flame sensor and all additional equipment, the
minimum protection class IP40 – or IP54 for use outdoors – must be ensured in accord-
ance with EN 60529.
• The analogue inputs connected to the modules must have the same potential as the pow-
er supply of the CMS system.
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