Siemens LMV5 Series Basic Documentation page 14

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Siemens Building Technologies
HVAC Products
1 Safety notes
1.1 Warnings
Observe the following warning notes to help prevent damage to persons,
property or the environment!
The LMV5... is a safety device! Do not interfere with or modify the unit. Siemens
Landis & Staefa will not assume responsibility for damage resulting from
unauthorized interference!
The addendum to the LMV51.2... and LMV52... documentation contain additional
warning notes which should also be observed when using these system variants.
After commissioning and after each service visit, check the flue gas values
across the entire load range.
The present Basic Documentation describes a wide choice of applications and
functions and serves as a guideline. The correct functioning is to be checked and
proven with the help of functional tests on a test rig or on the plant itself!
•
All activities (mounting, installation, service work, etc.) must be performed by
qualified staff
•
Degree of protection IP40 as per DIN EN 60 529 for burner controls must be
ensured through adequate mounting by the burner or boiler manufacturer
•
Before performing any work in the connection area of the LMV5..., disconnect the
unit from mains supply (all-polar disconnection)
•
Protection against electrical shock hazard on the LMV5... and on all connected
electrical components must be ensured through appropriate mounting
•
Check to ensure that wiring is in an orderly state
•
Fall or shock can adversely affect the safety functions. Such units may not be put
into operation even if they do not exhibit any damage
•
In programming mode, the position check of the actuators and of the VSD
(checking electronic fuel / air ratio control) is different from the check during
automatic operation. Like in automatic operation, the actuators are still jointly
driven to their required positions. If an actuator does not reach the required
position, corrections are made until that position is reached. However, in contrast to
automatic operation, there are no time limits for these corrective actions. The other
actuators maintain their positions until all actuators have reached their currently
required positions. This is essential for setting fuel /air ratio control. This means
that during the time the ratio curves are programmed, the person making the plant
settings must continuously monitor the quality of the combustion process (e.g. by
means of a flue gas analyzer). Also, if combustion levels are poor, or in the event
of dangerous situations, the commissioning engineer must take appropriate action
(e.g. switching the system off manually)
To ensure the safety and reliability of the LMV5... system, the following points must
also be observed:
Condensation and ingress of humidity must be avoided. Should such conditions
-
occur, make sure that the unit will be completely dry again before switching on!
Static charges must be avoided since they can damage the unit's electronic
-
components when touched.
Recommendation: Use ESD equipment
1.2 Mounting notes
•
Ensure that the relevant national safety regulations are complied with
•
In the geographical areas where DIN regulations apply, the requirements of VDE
must be satisfied, especially the standards DIN / VDE 0100, 0550 and DIN / VDE
0722
Basic Documentation LMV51...
1 Safety notes
CC1P7550en
01.10.2003