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Gas-Fired, Balanced-Flue or
Power-Vented Unit Heater
LCSA-4
Installation, commissioning, servicing & user instructions
Austria, Belarus, Bulgaria, China, Czech Republic, Croatia, Cyprus, Denmark, England, Estonia, Finland,
Germany, Greece, Hungary, Iceland, Latvia, Lithuania, Montenegro, New Zealand, Norway, Poland, Romania,
Russian Federation, Serbia, Slovakia, Slovenia, South Africa, Spain, Sweden, Turkey, Ukraine
Improper installation, adjustment, alteration, service or maintenance can cause property
damage, injury, or death. All work must be carried out by appropriately qualified persons.
The manufacturer does not take any responsibility in the event of non-observance of the
regulations concerning the connection of the apparatus causing a dangerous operation of the
apparatus, possibly resulting in damage to the apparatus and/or environment in which the unit
is installed.
Please read this document carefully before commencing installation commissioning and/or
servicing.
Leave it with the user or attached to the appliance or gas service meter after installation.
These appliances meet the following EC Directives
DIR 2009/142/EC: GAD
DIR 2004/108/EC: EMC
DIR 2006/95/EC: LVD
DIR 2006/42/EC MD
Applies to
WARNING
1/25
1610LCSA-4--EN
Subject to modifications
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Table of Contents
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Summarization of Contents
Introduction to LCSA-4 Heaters
Basic Information and Warranty
Covers model applicability, installation environment, warranty conditions, and basic operating principles of the LCSA-4 gas-fired heaters.
LCSA-4 Technical Data and Specifications
Specifications Overview
Presents detailed technical specifications including gas category, heat input, efficiency, consumption, and electrical data for various models.
Dimensional Information
Provides comprehensive dimensional drawings and a table of measurements for different LCSA-4 models.
General Requirements for LCSA-4 Installation
Related Documents, Heater Location, and Clearances
Covers compliance, optimal placement for venting/service, and minimum installation clearance requirements.
Combustion Air, Flue System, and Air Supply
Details requirements for flue systems (Type B/C), combustion air supply, and the critical need for adequate airflow.
Electrical and Gas Supply
Outlines electrical supply needs (230V, earthing, isolator) and gas supply considerations (types G20/G31, pressure adequacy).
Installation Procedures for LCSA-4
Unpacking, Preparation, and Suspension
Steps for checking the heater, verifying specifications, and proper methods for lifting and suspending the unit.
Combustion Air, Flue, Gas, and Electrical Connections
Instructions for fitting flue/air systems, connecting gas supply, and making electrical connections safely.
Room Thermostat Location
Recommendations for optimal placement of the room thermostat to ensure accurate temperature control.
Air Distribution and Louver Adjustment
Airflow Direction and Louver Settings
Guidance on adjusting air outlet louvers for optimal airflow spread and avoiding direct contact with occupants.
Commissioning and Testing Procedures
Electrical and Gas Checks
Detailed preliminary checks for electrical safety, continuity, polarity, voltage, and gas soundness before appliance operation.
Suspension, Lighting, and Pipe Work
Ensuring proper suspension, step-by-step lighting procedures, and checking gas pipe work for leaks.
Adjustments, Operation, and Handover
Covers burner pressure adjustment, heater controls, operation checks, and final handover to the user.
Servicing Instructions for LCSA-4
Annual Service Procedures
Detailed annual maintenance tasks including burner cleaning, heat exchanger inspection, and fan cleaning for optimal performance.
Removal and Replacement of Parts
Main Burner and Injector Replacement
Step-by-step instructions for safely removing and replacing the main burner assembly and burner injectors.
Ignition System, Gas Valve, and Controls
Procedures for servicing/replacing ignition components, gas control valve, overheat limits, and combustion air controls.
Combustion Air Fan (Venter)
Instructions for accessing, servicing, and replacing the combustion air fan (venter) motor.
Fault Finding Procedures
Troubleshooting: Heater Not Operating
Diagnostic chart for issues when the lock-out light is off but the air heater does not operate.
Troubleshooting: Ignition Lockout
Diagnostic chart for issues where the ignition controller lockout indicator light repeatedly comes on.
Troubleshooting: Limit Controls and Fan Issues
Diagnostic charts for limit control trips and fan operation problems.
LCSA-4 Parts Listing
Component Identification and Part Numbers
Lists various replacement parts such as switches, motors, valves, and fans with their corresponding part numbers.
Gas Conversion Procedures
Gas Type Conversion Steps
Details on converting the heater for different gas types, including necessary changes to injectors and pressure regulators.
User Instructions for LCSA-4
Heater Operation, Safety, and Lighting
Explains how the heater works, safety precautions, and step-by-step instructions for lighting the unit.
Air Circulation and Maintenance Guidance
Information on air circulation modes and essential maintenance practices to be performed by qualified personnel.
Health and Safety Statement
Material Hazards and Safety Precautions
Information on potentially hazardous materials used in the heater, including insulation, seals, and electrical components.
Thermostat and General Safety Notes
Details on thermostat components and general cautionary notes regarding initial firing and material declarations.
EC Declaration of Conformity
Machinery Directive and Harmonized Standards Compliance
Declaration of conformity for LCSA-4 heaters, stating compliance with relevant EC directives and harmonized standards.
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