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Siemens Building Technologies Basic Documentation LMV51... CC1P7550en
HVAC Products 1 Safety notes 01.10.2003
1.3 Installation notes
• Ensure that the electrical wiring inside the boiler is in compliance with national and
local safety regulations
• Make certain that strain relief of the connected cables is in compliance with the
relevant standards (e.g. as per DIN EN 60730 and DIN EN 60 335)
• Ensure that spliced wires cannot get into contact with neighboring terminals. Use
adequate ferrules
• Lay the high voltage ignition cable completely separate from all other cables
• The burner manufacturer must protect unused AC 230 V terminals with a dummy
plug (refer to 2.2 Product range overview and 11.2 Suppliers of other accessory
items)
• When wiring the unit, ensure that AC 230 V mains voltage cables are run strictly
separate from extra low-voltage cables to warrant protection against electrical
shock hazard
1.4 Electrical connection of ionization probe and
flame detector
It is important to achieve practically disturbance- and loss-free signal transmission:
• Never run the detector cables together with other cables
– Line capacitance reduces the magnitude of the flame signal
– Use a separate cable
• Observe the permissible cable lengths
• The ionization probe is not protected against electrical shock hazard. The mains-
powered ionization probe must be protected against accidental contact
1.5 Commissioning notes
• Prior to commissioning, check to ensure that wiring is in an orderly state and that
the parameter are correctly set
• When commissioning the unit, check all safety functions
• There is no absolute protection against incorrect use of the RAST5 connectors. For
this reason, prior to commissioning the plant, check the correct assignment of all
connectors
• Electromagnetic emissions must be checked on an application-specific basis
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