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Siemens Building Technologies CC1N7418en
HVAC Products 08.04.2004
Standards and certificates
Conformity to EEC directives
– Electromagnetic compatibility EMC (immunity)
- Directives for gas-fired appliances
89 / 336 EEC
90 / 396 EEC
ISO 9001: 2000
Cert. 00739
ISO 14001: 1996
Cert. 38233
LGA41.153A27 --- ---
LGA41.173A27 x x
LGA52.150B17 x ---
LGA52.150B27 x ---
LGA52.171B27 x x
LGA63.191A27 x ---
• Identification code to EN 298
- A M C L X N single-stage
- A T C L X N 2-stage
Service notes
• Each time a unit has been replaced, check wiring to ensure that it is in an orderly
state and make the safety checks as indicated in «Commissioning notes»
Disposal notes
The unit contains electrical and electronic components and may not be disposed of to-
gether with household waste.
Local and currently valid legislation must be observed.
Mechanical design
The gas burner controls are of plug-in design, suitable for installation in any position on
burners, in control cabinets or on control panels.
The housing is made of impact-proof, heat-resistant plastic and accommodates:
- The thermal sequencing device (ambient temperature-compensated) acting on a
multiple snap action switching system,
- The flame signal amplifier with the flame relay, and
- The lockout warning lamp and lockout reset button (splash-proof)
In the event mains voltage drops below about AC 165 V, an electronic circuit ensures
that the gas burner control will prevent burner startup or – without releasing fuel – lock-
out will be initiated.
• Undervoltage threshold: AC 178 V ±10 V
• «TSA»: Smaller tolerance band
• Flame signal amplifier: Higher sensitivity, for typical applications with pilot flames
LGA...
Undervoltage detection
Only with
LGA63.191A27
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