Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
8 Technical data 28.01.2015
Safety limit thermostat
- Voltage AC 230 V
- Current 5 mA...1 A, cos >0.6
Carrying power to the fuel valve and
ignition
- Cable length <1 m
Fuel valve
- AC output AC 230 V +10%/-15%
Valve must still open at AC 175 V
- Current 5 mA…0.5 A, cos >0.6
Note!
 A fuel valve with rectifier may be connected to the fuel valve output only if
approved by Siemens!
 In this case, additional protective measures inside the LMS14... must be taken
(optional components)
RAC output (optional
components)
RAC 230 V +10%/-15% 100 Hz
Valve must still open at RAC 175 V
- Output Max. 20 W, cos >0.9
General data on connection of
fuel valve
- Cable length Max. 1 m for AC/RAC
Max. 3 m if cable is routed separately (to avoid
capacitive coupling)
- Capacitive extra circuit or surge
voltage limiting protective
elements
Not permitted
External ignition module
- Voltage AC 230 V +10%/-15%
- Current 5 mA…0.5 A, cos >0.6
Full ignition required at AC 175 V
- Cable length Max. 1 m
Max. 3 m if cable is routed separately (to avoid
capacitive coupling)
-Starting current Max 1 A
In terms of switching performance, every external ignition module used must be
approved by Siemens!
Fan control For fans driven by mains-powered DC motor
Refer to separate Siemens specification:
Spezifikation_LMU5x_TrafoGebläse_de_VX.Y.doc
(mandatory)

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English