Siemens LMO14.113C2

CC1N7130en
22.08.2013
Building Technologies Division
Infrastructure & Cities Sector
7
130
Oil Burner Controls
LMO14...
LMO24...
LMO44...
Microcontroller-based oil burner controls for the startup, supervision and control
of forced draft oil burners in intermittent operation. Standard versions with an oil
throughput up to 30 kg / h, special versions above 30 kg / h.
The LMO14..., LMO24..., LMO44... and this Data Sheet are intended for use by
OEMs which integrate the burner controls in their products.
Use, features
The LMO... are designed for the startup and supervision of 1- or 2-stage forced draft oil
burners in intermittent operation. Yellow-burning flames are supervised with photo
resistive detectors QRB..., blue-burning flames with blue-flame detectors QRC...
In terms of housing dimensions, electrical connections and flame detectors, the LMO...
are identical with the LOA... oil burner controls.
- Oil burners with fans to EN 267
- Burner controls for use with atomization oil burners of monoblock design to
DIN EN 230:2005-10
- LMO44... for use with stationary direct-fired air heaters
- Undervoltage detection
- Electrical remote reset
- Bridging contact for oil preheater
- Monitoring of time for oil preheater
- Accurate and reproducible control sequence thanks to digital signal handling
- Controlled intermittent operation after 24 hours of continuous operation
- Limitation of the number of repetitions
- Multicolor indication of fault status and operational status messages
Use
General features
Distribuitor: FLAME POWER SRL 021-3121727 ; 0744-340566 contact@arzatoare.ro ; www.arzatoare.ro

Siemens LMO14.113C2 Specifications

General

Type	Control Unit
Model	LMO14.113C2
Manufacturer	Siemens
Frequency	50/60 Hz
Flame Detector	UV / IR
Protection Class	IP40
Communication Protocol	Modbus
Temperature Range	-20 to +60 °C

Summary

Safety and Installation

Warning Notes

Crucial safety warnings and precautions to avoid injury, property damage, or environmental harm during operation.

Mounting and Installation Guidelines

Guidelines for proper mounting, electrical connections, and compliance with safety regulations.

Flame Detector Connection Practices

Commissioning, Service, and Disposal

Commissioning Safety Checks

Essential safety checks to perform during plant commissioning and maintenance work for burner controls.

Technical Specifications

Indication and Diagnostics Overview

Technical Data: General and Environmental

General Unit Specifications

Environmental Conditions

Technical Data: Flame Supervision

Flame Supervision Requirements

Detector Current Measurement Circuit

Burner Control Functionality

Startup Preconditions and Undervoltage Handling

Lists startup conditions and describes safety shutdown/restart behavior based on mains voltage levels.

Fault Handling and Reset Procedures

Explains control sequences during faults, lockout conditions, and the procedure for resetting the burner control.

Ignition Program and Repetition Limits

Details ignition program behavior and the limitation of repetitions during operation to prevent lockout.

Operation, Display, and Diagnostics

Control Operation and Indicators

Operational Status Indication

Fault Cause Diagnostics

Details diagnostic methods and how to identify fault causes using the LED and error code table.

Diagrams and Legend

Connection Diagrams and Control Sequences