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Building Technologies Basic documentation LMV37.4... CC1P7546en
HVAC Products 1 Safety notes 01.12.2009
To ensure safety and reliability of the LMV37.4... system, the following points must also
be observed:
- Condensation and ingress of humidity must be avoided. Should such conditions oc-
cur, make sure that the unit is completed dry before switching on again!
- Static charges must be avoided since they can damage the unit’s electronic compo-
nents when touched.
Recommendation: Use ESD equipment
- If the unit fuse was blown due to overload or a short-circuit at the connection termi-
nals, the LMV37.4... must be replaced since the switching contacts might have been
damaged
- If error codes 95…98 appear during operation, this may be an indication of contact
problems and the LMV37.4... should be replaced
1.2 Mounting notes
• Ensure that the relevant national safety regulations and standard notes are com-
plied with
• In geographical areas where DIN regulations are in use, the requirements of VDE
must be satisfied, especially DIN / VDE 0100, 0550 and DIN / VDE 0722
• The LMV37.4... basic unit must be secured with fixing screws M4 (UNC32) or M5
(UNC24), observing a maximum tightening torque of 1.8 Nm and using all 4 fixing
points. The additional mounting surfaces on the housing are provided to improve
mechanical stability. These must fully rest on the mounting surface to which the unit
is secured. The flatness of that mounting surface must be within a tolerance band of
0.3 mm
122
(103.5)
6.5
103.5
10
217
M5 x 4
0,3
Bild 365./0409
Additional mounting
surfaces
Outer contour of housin
Note on mounting
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