Siemens LMO44 Series User Manual

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 LMO44 Series Specifications

General

Flame Failure Response Time	< 1 s
Safety Time	10 s
Protection Class	IP40
Frequency	50/60 Hz
Approvals	EN 298, EN 230
Output Voltage	As per input voltage
Operating Temperature	-20...+60 °C
Storage Temperature	-40...+85 °C

Summary

Use and Features of Oil Burner Controls

Safety and Installation Notes

General Warning Notes

Crucial warnings to prevent injury, damage, or environmental harm during handling and operation.

Mounting and Installation Guidelines

Guidelines for installing the burner controls, ensuring compliance with safety regulations.

Flame Detector Electrical Connection

Instructions for proper electrical connection of flame detectors to ensure signal integrity.

Commissioning, Standards, and Service

Commissioning Safety Checks

Safety checks to perform when commissioning or maintaining the burner control.

Mechanical Design and Type Summary

Indication and Diagnostic Features

Product Type Summary Table

Technical Data Specifications

Burner Control Functions

Startup and Operation Conditions

Fault Handling and Reset Procedures

Details fault sequences, lockout conditions, and how to reset the burner control.

Operation, Display, and Diagnostics

Operational Status Indication

Fault Cause Diagnostics

Details how to activate and interpret fault codes shown by the LED for troubleshooting.

Connection Diagrams and Control Sequences

LMO14 Diagrams and Sequences

LMO24 Diagrams and Sequences

LMO44 Diagrams and Sequences