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CONDENSING WARM AIR HEATERS SERIES
fitted with automatic forced draught gas fired or fuel oil fired low NOx burner
MODEL
SERIAL NUMBER
VOLTAGE
MOUNTH/YEAR
COUNTRY OF DESTINATION:
COMPLIES WITH: GAR 2016/426 (EU); DIRECTIVE 2009/125/EC, ECODESIGN-ErP REGULATION (EU) 2016/2281, STEP II°.
THIS MANUAL IS AN INTEGRAL PART OF THE APPLIANCE. IT MUST BE DELIVERED TO THE USER AND MUST ALWAYS FOLLOW THE
APPLIANCE.
USE, INSTALLATION AND
MAINTENANCE MANUAL
L - LO – LE – LEO - LP
HEATING SECTION SERIES LR
ENGLISH TRANSLATION FROM ORIGINAL
11,3x2
ENCLOSURE: COPY OF GAR 2016/426 CERTIFICATE
R e v . 5 d e l 2 2 / 0 7 / 2 0 2 1
This appliance must be installed in
accordance with the national regulations
in force and used only in a sufficiently
ventilated space.
Consult instructions before installation
and use of this appliance.
P a g .
1 | 65
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Table of Contents
Related Manuals for CMT LE Series
Summarization of Contents
Use, Installation, and Maintenance Manual
Product Series Overview
Details the available warm air heater series: L, LO, LE, LEO, LP, and LR.
Technical Identification Fields
Fields for recording Model, Serial Number, Voltage, and Month/Year.
Purpose and Manual Scope
Manual Objectives
Outlines the manual's intent for operators and specialized personnel.
Safety Symbols Explained
Explains various safety symbols like DANGER, WARNING, CAUTION, and PPE.
Safety Precautions and Responsibilities
Manual's Integral Role
Emphasizes the manual as an essential part of the machine.
Manufacturer Liability Limitations
Details manufacturer's non-liability for improper use or unauthorized modifications.
Prohibited Usage Conditions
Strictly forbids machine use in explosive atmospheres.
General Information and Precautions
Intended Machine Uses
Specifies suitable applications like direct air heating and ventilation.
Warranty and Liability Exclusions
Lists conditions that void the warranty and exclude manufacturer liability.
Safety and Prevention Guidelines
Proper Machine Usage
Stresses using the machine only for its intended purpose and maintaining safety conditions.
Component Integrity and Replacement
Ensures all components are intact and only manufacturer-specified parts are used.
Construction and Safety Requirements
Heater Construction Details
Describes the frame, insulation, fan section, and combustion chamber.
Control and Safety Thermostat Functions
Explains the roles of FAN (TR), LIMIT (TW), and LIMIT2 (STB) thermostats.
Regulatory Compliance and Standards
Essential Safety Requirements
Covers electrical checks, temperature compliance, and noise containment.
Applicable Standards and Laws
Lists relevant EU directives, technical standards, and national laws.
Technical Characteristics Plate
Rating Plate Facsimile
Shows an example image of the machine's technical characteristics plate.
Installation Compliance Note
Reiterates the need for installation according to standards and in ventilated areas.
Handling and Logistics
Packaging Specifications
Describes packaging for different versions and accompanying plates.
Transport and Unloading Safety
Guidelines for safe transport, loading, and unloading using caution.
Positioning Guidelines
Instructions on proper placement after unpacking, advising against overturning.
Construction Details (L/LO Series)
Models '30' and '60' (Single-Phase)
Diagram and component list for smaller L/LO series units with single-phase motors.
Models '80' to '200' (Three-Phase)
Diagram and component list for medium L/LO series units with three-phase motors.
Construction Details (Larger Models)
Models '250' to '600' (Three-Phase)
Diagram and component list for larger L/LO series units with three-phase motors.
Warm Air Heater Visuals
Photographs showing 1Ph and 3Ph warm air heaters with plenums.
Weights and Dimensions (L Series)
Dimensional Reference Drawings
Diagrams illustrating measurement points (A-Ø) for L series heaters.
L Series Weight and Size Data
Table detailing dimensions and weights for various L series models.
Assembly Procedures
L600 Section Union Instructions
Steps for joining the fan and heating sections of the L600 model.
Burner Protection Cabin Installation
Procedure for assembling the protective cabin for the burner.
Plenum Fixing Instructions
Steps for attaching the direct air delivery plenum to the heater.
Weights and Dimensions (LO Series)
Dimensional Reference Drawings
Diagrams illustrating measurement points (A-Ø) for LO series heaters.
LO Series Weight and Size Data
Table detailing dimensions and weights for various LO series models.
Construction Details (LE/LEO Series)
Models '30' and '60' (Single-Phase)
Diagram and component list for smaller LE/LEO units with single-phase motors.
Models 'LE80' to 'LE200' (Three-Phase)
Diagram and component list for medium LE/LEO units with three-phase motors.
Construction Details (Larger LE/LEO Models)
Models '250' to '600' (Two Three-Phase Motors)
Diagram and component list for larger LE/LEO units with twin three-phase motors.
Warm Air Heater Visuals
Photographs showing LE and LEO warm air heaters in vertical and horizontal configs.
Weights and Dimensions (LE Series)
Dimensional Reference Drawings
Diagrams illustrating measurement points (A-Ø) for LE series heaters.
LE Series Weight and Size Data
Table detailing dimensions and weights for various LE series models.
Weights and Dimensions (LEO Series)
Dimensional Reference Drawings
Diagrams illustrating measurement points (A-Ø) for LEO series heaters.
LEO Series Weight and Size Data
Table detailing dimensions and weights for various LEO series models.
Plenum Specifications (L/LO Series)
Airflow and Dimensions Data
Table showing dimensions and airflow capacities for plenum attachments.
Nozzle Fin Deflection Impact
Note on how nozzle fin deflection affects blown air speed.
Filter Box Dimensions (L/LE Series)
Box Dimensions and Filter Configuration
Table listing filter box dimensions and filter types for L/LE series.
Filter Pressure Drop and Care
Information on filter pressure drop and cautions for plant calculations.
Filter Box Dimensions (LO/LEO Series)
Box Dimensions and Filter Configuration
Table listing filter box dimensions and filter types for LO/LEO series.
Filter Pressure Drop and Care
Information on filter pressure drop and cautions for plant calculations.
Technical Data Sheet (Gas Models)
Thermal Performance Data
Details rated heat input, output, efficiency, and backpressure for gas models.
Aeraulic and Gas Consumption Data
Includes airflow rates, static pressure, and gas consumption figures.
Electrical Data and NOx
Provides motor specs, voltage, absorption, noise, and NOx values.
Ecodesign Information (Gas Models)
Heat Output and Efficiency Metrics
Covers heat output load range, control, and efficiency by Hs.
Energy Consumption and Emissions
Details power consumption, NOx emissions, and emission efficiency.
Ecodesign Information (Larger Gas Models)
Heat Output and Efficiency Metrics
Details heat output load range, control, and efficiency for larger gas units.
Energy Consumption and Emissions
Provides power consumption, NOx emissions, and efficiency data for larger units.
Technical Data Sheet (Fuel Oil Models)
Thermal Performance Data
Details rated heat input, output, efficiency, and backpressure for fuel oil models.
Aeraulic and Fuel Consumption Data
Includes airflow rates, static pressure, and fuel oil consumption figures.
Electrical Data and NOx
Provides motor specs, voltage, absorption, noise, and NOx values.
Ecodesign Information (Fuel Oil Models)
Heat Output and Efficiency Metrics
Covers heat output load range, control, and efficiency by Hs for fuel oil units.
Energy Consumption and Emissions
Details power consumption, NOx emissions, and emission efficiency for fuel oil units.
Ecodesign Information (Larger Fuel Oil Models)
Heat Output and Efficiency Metrics
Details heat output load range, control, and efficiency for larger fuel oil units.
Energy Consumption and Emissions
Provides power consumption, NOx emissions, and efficiency data for larger units.
LP Series: Special Applications
Application Distinction
Differentiates LP series operation for tensile vs. pressure static structures.
Construction Details (LP Series)
Component Identification
Diagram and numbered list identifying all components of the LP series.
Weights and Dimensions (LP Series)
Dimensional Drawings & Orientation
Illustrates dimensions and left/right orientation options for LP series.
LP Series Weight and Size Data
Table detailing dimensions and weights for various LP series models.
Technical Data Sheet (LP Series)
Thermal Performance Data
Provides thermal performance metrics for LP series, including efficiency and backpressure.
Aeraulic Performance Data
Details airflow, static pressure, and gas/oil consumption for LP series.
Electrical and Gas Category Data
Includes motor specs, voltage, and gas category information for LP series.
User Instructions: Pre-Start Checks
Electrical Panel Checks
Verification of electrical panel connections, power supply, and fan rotation.
Heating Mode Pre-Start Inspections
Checks for fuel supply, thermostat settings, and flue compliance.
Operating Modes and Functions
Heating Mode Operation
Describes burner start, fan operation, and thermostat control in heating mode.
Safe Unit Shutdown
Procedure for safely stopping the heater, ensuring proper cooling.
Ventilation Mode Operation
Instructions for operating the unit solely in ventilation mode.
Installation Instructions
Heater Location and Clearances
Requirements for placement, clearances from walls, and room ventilation.
Room Ventilation Requirements
Guidelines for ensuring adequate ventilation and air circulation.
Installation Clearances
L/LE Series Placement Dimensions
Specific clearance dimensions (A, B) for L and LE series models.
LO/LEO Series Placement Dimensions
Specific clearance dimensions (A, B) for LO and LEO series models.
Burner Installation and Setup
Operating Temperature Limits
Specifies operating temperature ranges for burner and electrical components.
Burner Selection and Compatibility
Guidance on choosing compatible burners and checking penetration length.
Burner Mounting and Connections
Steps for installing the burner, electrical connections, and thermostat wiring.
System Connections
Gas Piping Requirements
Rules for gas piping installation, including diameters and pressure drop.
Electrical Connection Guidelines
Instructions for wiring, grounding, power supply, and component connections.
Ambient Thermostat Placement
Recommendations for installing and positioning the ambient thermostat.
Burner Coupling Guide
RIELLO Burner Compatibility
Table listing RIELLO gas burner models compatible with L series heaters.
ECOFLAM Burner Compatibility
Table listing ECOFLAM gas burner models compatible with L series heaters.
CUENOD Burner Compatibility
Table listing CUENOD gas burner models compatible with L series heaters.
Burner Coupling Guide (Continued)
ELCO Burner Compatibility
Table listing ELCO gas burner models compatible with L series heaters.
CIB/UNIGAS Burner Compatibility
Table listing CIB/UNIGAS gas burner models compatible with L series heaters.
BALTUR Burner Compatibility
Table listing BALTUR gas burner models compatible with L series heaters.
Flue and Chimney Connection
Chimney Connection Requirements
Guidelines for connecting the flue pipe to the chimney, ensuring airtightness.
Flue System Regulations
Mentions B23 flue configuration suitability and compliance with local laws.
Flue System Configurations
LE Series Flue Diagram
Diagram illustrating flue connection setup for LE series warm air heaters.
LEO Series Flue Diagram
Diagram illustrating flue connection setup for LEO series warm air heaters.
Flue Components and Pressure Drops
100-200mm Flue Parts Data
Table of flue pipes, bends, terminals, and unions with pressure loss data.
200-300mm Flue Parts Data
Table of flue pipes, bends, terminals, and unions with pressure loss data.
Flue Components and Safety Controls
Flue Component Dimensions
Provides dimensions for Chinese hat terminals, weatherproof terminals, bends, and unions.
Safety Pressure Switch Function
Explains the safety pressure switch's role in detecting flue obstruction.
Condensate Management
Condensate Drain Pipe Connection
Details on connecting the condensate drain pipe, trap, and disposal system.
Condensate Disposal Systems
Options for indoor/outdoor disposal, preventing fume leaks, and pH neutralization.
Final Checks and Assembly
Direct Air Delivery Plenum Assembly
Instructions for assembling the air delivery plenum with sealant.
First Start-Up Inspection Checklist
Key checks before initial operation: pressure switch, burner, fan rotation, motor absorption.
Thermostat System (TRI-THERMOSTAT)
FAN (TR) Thermostat Function
Controls fan start/stop based on air outlet temperature; set points provided.
LIMIT2 (STB) Safety Thermostat
Manual reset safety thermostat that stops burner on overheat.
LIMIT (TW) Temperature Limit
Automatic reset thermostat stopping burner on overheat.
Tri-Thermostat Wiring Diagrams
1Ph Wiring Configuration
Wiring diagram for tri-thermostat connections on single-phase units.
3Ph Wiring Configurations
Wiring diagrams for tri-thermostat connections on three-phase units.
LR Heating Sections Overview
LR Series Components
Describes the combustion chamber, heat exchanger, frame, and tri-thermostat.
Coupling and Airflow Considerations
Details coupling LR sections with ventilating sections and airflow limits.
Dimensions and Weights (LR Series)
Orientation Reference Diagrams
Illustrates horizontal and vertical orientations and measurement points.
LR Series Size and Weight Data
Table detailing dimensions and weights for LR series heating sections.
Technical Data (LR Series)
Thermal Performance
Provides heat input, output, efficiency, and backpressure for LR series.
Aeraulic Performance
Details airflow, static pressure, and gas consumption for LR series.
Gas Consumption and NOx Data
Lists gas consumption, CO2, and NOx values for LR series.
Electrical Diagrams (30-60 Models)
Single-Phase Main Feeding Diagram
Wiring diagram for main power supply (230V) on 30-60 models.
Burner Line Wiring Diagram
Diagram showing the electrical connections for the burner line.
Electrical Diagrams (80-200 Models)
Three-Phase Main Feeding Diagram
Wiring diagram for main power supply (400V) on 80-200 models.
Burner Line Wiring Diagram
Diagram showing the electrical connections for the burner line.
Electrical Diagrams (250-500 Models)
Three-Phase Main Feeding Diagram
Wiring diagram for main power supply (400V) on 250-500 models.
Burner Line Wiring Diagram
Diagram showing the electrical connections for the burner line.
Electrical Diagrams (300-600 Models)
Three-Phase Main Feeding Diagram
Wiring diagram for main power supply (400V) on 300-600 models.
Burner Line Wiring Diagram
Diagram showing the electrical connections for the burner line.
Electrical Diagrams (LP Series)
Three-Phase Main Feeding Diagram
Wiring diagram for main power supply (400V) on LP series models.
Burner Line Wiring Diagram
Diagram showing the electrical connections for the burner line.
Maintenance Procedures
General Maintenance Precautions
Safety rules before maintenance: disconnect power, close fuel, wear PPE.
Heat Exchanger Cleaning
Steps for cleaning soot and deposits from the heat exchanger.
Component Maintenance
Flue System Cleaning
Procedure for cleaning soot from flue pipes and fume boxes.
Combustion Chamber Cleaning
Cleaning the burner plate, external walls, and checking seals.
Air Inlet Filter Cleaning
Instructions for removing, cleaning, and replacing the air filter.
Ventilating Unit Checks
Inspection of pulleys, drive belts, belt tensioning, and motor absorption.
Burner Maintenance Reference
Refers to the burner manufacturer's manual for specific maintenance tasks.
Maintenance Schedule
Daily and Hourly Checks
Tasks required daily or every 80 working hours.
Seasonal and Annual Checks
Tasks required at the start of each heating season and annually.
Belt Tensioning Guide
Instructions for adjusting motor pulley tension and alignment.
Troubleshooting Guide
Common Failures and Remedies
Table identifying failures, causes, and suggested remedies for common issues.
Certifications
EU Type-Examination Certificate (GAR)
Details of the certificate issued by Kiwa Cermet Italia for gas-fired heaters.
Certificate Appendix
Model List and Heat Input
Lists all compliant models and their maximum/minimum heat inputs.
Appliance Types and Countries
Specifies appliance types and the countries where the certificate is valid.
Manufacturer Declarations
NOx Emission Declaration
Declaration of NOx emission data according to EN 17082:2019.
Declaration of Conformity
Product Range and Compliance
Lists compliant warm air heater models and relevant EU directives.
Company Information
Contact Details and Disclaimer
Company address, contact information, and rights to modify products.
Need help?
Do you have a question about the LE Series and is the answer not in the manual?
Questions and answers