Safety Notes; Notes On Product Liability - Siemens LMS14 User Manual

Building Technologies Division
2

Safety notes

2.1 Notes on product liability

 The LMS14... may only be used in building services plant and only in compliance
with the applications covered by this document
 When employing the products, all requirements specified in chapters Handling and
Technical data must be satisfied
 Local safety regulations (installation, etc.) must be complied with
 The units must not be opened. If not observed, warranty by Siemens becomes void
Danger!
Do not open, interfere with or modify the units!

All activities (mounting, installation, service work, etc.) must be performed by
qualified personnel

Before performing any work in the connection area of the LMS14..., disconnect the
unit from mains supply (all-polar disconnection). Ensure that the plant cannot be
inadvertently switched on again and that it is indeed dead. If not disconnected,
there is a risk of electric shock

Ensure protection against electric shock by providing adequate protection for the
unit's terminals

After any kind of activity (mounting, installation, service work, etc.), check to ensure
that wiring is in an orderly state, that all safety functions are performed correctly
and that the parameter settings are correct

Fall or shock can adversely affect the safety functions. Such units must not be put
into operation, even if they do not exhibit any damage

AC 230 V terminals that are not used must be protected by dummy plugs fitted by
the burner manufacturer

Never connect or disconnect the stepper motors (WX1 connected to X16 or
X16a) when live. If not observed, the built-in driver stage can be damaged
Siemens will not assume liability for damage resulting from unauthorized
interference!
If fuses inside the LMS15... are blown, the unit must be returned to Siemens. The
mains fuse (FB01/FB02) may be replaced once. Since overcurrents can damage
relays, a plant safety check must be made.
Electromagnetic emissions must be checked on an application-specific basis!
The choice of applications and scope of functions covered by this User Manual
shall serve as a guideline. The correct operation of the plant must be checked
and proven by function tests made on the heating appliance and the relevant
plant!
Danger!
At the OEM's request, the quick connector for the mechanical STB (SLT = safety limit
thermostat) on the printed circuit board can be bridged ex factory. In that case, the
mechanical SLT would be deactivated. When using a mechanical SLT, the resistor
must always be removed. LMS14... with different type numbers must never be mixed
up.
User Manual LMS14...
2 Safety notes
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CC1U7471en
28.01.2015