Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14... CC1U7471en
3 Mounting and installation 28.01.2015
3 Mounting and installation
3.1 Safety regulations
 Prior to installation, disconnect power
 The low-voltage and mains voltage terminals are arranged on different sides of the
unit
Warning!
Never run ionization probe cable and mains cables in the same trunk.
This unit does not provide any separate line protection for supply cables
running to external loads (field supply)!
The cable insulation must always be appropriate for the rated voltage
concerned.
If supply voltages (including a 24 V extra-low voltage) are fed to external loads,
the cross-sectional areas used must always be suitable for the rated value of
the upstream overcurrent protective device.
Always observe the relevant local regulations in this regard.
Warning!
 When making the wiring, the AC 230 V section must be strictly segregated
from the extra low-voltage section, thus ensuring protection against
electric shock and electromagnetic interference
 In connection with the (safety) limit thermostat, observe the safety-related
notes given in chapter Electronic safety limit thermostat (SLT)
 Make certain that spliced individual wires cannot touch neighboring
terminals. Fit suitable ferrules
 Always run the high-voltage ignition cables separate from the unit and
other cables while observing the greatest possible distances
Danger!
 Compliance with DIN EN 60335 and DIN EN 60730-2-5 must be ensured
 The electrical wiring inside the boiler must conform to national and local
regulations
 Degree of protection IP40 as per DIN EN 60529 for burner controls must be
ensured by the burner or boiler manufacturer through correct installation
of the LMS14...
3.1.1 Electrical connection of ionization probe
It is important to achieve practically disturbance- and loss-free signal transmission:
 Never run the ionization probe cable together with other cables
- Line capacitance reduces the magnitude of the flame signal
- Use a separate cable
 Observe the permissible length of the ionization probe cable (refer to chapter
Technical data in the relevant pieces of documentation)
 Locate ignition electrode and ionization probe such that the ignition spark cannot
arc over to the ionization probe (risk of electric shock)
 Locate the ionization probe and its connections such that adequate protection
against direct or indirect contact with active parts is ensured in every unfavorable
position allowed under correct usage conditions. If not observed, there is a risk of
electric shock
Electrical installation

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English