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Building Technologies Basic documentation LMV37.4... CC1P7546en
HVAC Products 26 Parameter level 01.12.2009
26 Parameter level
The parameters stored in the basic unit can be displayed or changed on the parameter
level.
The change to the parameter level requires a password.
Siemens supplies the LMV37.4... gas basic units with the factory settings according to
«Type summary».
The OEM can change the Siemens default settings to match his own requirements.
With the LMV37.4..., the basic unit’s characteristics are determined primarily through
parameterization. Every time the unit is recommissioned, the parameter settings must
be checked. The LMV37.4... must never be transferred from one plant to another with-
out matching the parameters to the new plant.
Caution!
Parameters and settings may only be changed by qualified staff.
If parameters are changed, responsibility for the new parameter settings is assumed
by the person who – in accordance with the access rights – has made parameter
changes on the respective access level.
After parameterization, the OEM must check to ensure that safe burner operation is
warranted.
The OEM which made the settings is always responsible for the parameters, their set-
tings and compliance of the respective application with the relevant national and in-
ternational standards and safety regulations, such as EN 676, EN 267, EN 1643, etc.
Siemens, its suppliers and other Group Companies of Siemens AG do not assume
responsibility for special or indirect damage, consequential damage, other damage, or
damage resulting from wrong parameterization.
Warning!
If the factory settings are changed, all changes made must be documented and
checked by the OEM.
The OEM is obliged to mark the unit accordingly and to include at least the list of de-
vice parameters and settings in the burner’s documentation.
Siemens also recommends attaching an additional mark on the LMV37.4... in the form
of an adhesive label. According to EN 298, the label should be easy to read and wipe
proof.
The label with a maximum size of 70 mm x 45 mm can be attached to the upper part
of the housing.
Example of label: OEM logo
Type / part no.: 1234567890ABCD
Caution! OEM settings:
Parameter no.
225 = 30 s (t1) 226 = 2 s (t3)
230 = 10 s (t4) 234 = 0 s (t8)
240 = 1 (repetition)
257 = 2 s (t3n) TSA = t3n + 0.7 s
259 = 30 s (t11)
260 = 30 s (t12)
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