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Table of Contents
- 1 Table of Contents
- 2 General
- 3 Technical Data
- 4 Installing
- 5 Combustion, Air Supply and Flue System
- 6 Gas Connection
- 7 Commissioning, Lighting and Operation
- 8 Electrical Connection
- 9 Maintenance
- 10 Spare Parts List
- 11 Gas Conversion
- 12 Fault Finding
- 13 Health and Safety Statement
- 14 User Instructions
- Download this manual
Reznor
PLEASE READ THIS DOCUMENT BEFORE COMMENCING INSTALLATION. THIS DOCUMENT ALSO INCLUDES USER
INFORMATION. AFTER INSTALLATION, PLEASE LEAVE IT WITH THE USER OR ATTACHED TO THE APPLIANCE OR
®
GAS FIRED WARM AIR HEATERS
TYPE ML 1511, 1515 & 1520
Axial Fanned, Forced Convection Air Heaters
with Automatic Ignition & Fanned Flues for use as:
Type B22 - C12 or C32 Appliances
Designed for Free Blowing use
INSTALLATION, COMMISSIONING, SERVICE
AND USER INSTRUCTIONS
These appliances meet the following EC Directives:
Dir. CE 90/396/EEC GAD
Dir. CE 89/336/EEC EMC
Dir. CE 89/392/EEC MD
Dir. CE 73/23/EEC LVD
THE GAS SERVICE METER.
0108ML00GBEN
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Table of Contents
Related Manuals for Reznor ML 1520
Summarization of Contents
Installing the Air Heater
Installation Clearances and Safety
Details necessary clearances for safety and service access.
Structural Support Requirements
Ensuring structural elements can support appliance weight and components.
Location and Servicing Space
Ensuring adequate space for servicing and safety clearances.
Base Mounting Options
Details on optional base mounting and secure fastening.
Suspension Methods
Describes available suspension sockets and alternatives.
Flue System and Combustion Air Supply
Flue System and Combustion Air Requirements
Compliance for flue systems and outdoor combustion air.
Combustion Air Source and Servicing Access
Taking combustion air from outdoors; servicing access for ducts.
Type C Appliances
Details regarding Type C appliances and flue systems.
Type B Appliances
Details regarding Type B appliances and flue systems.
Gas Connection Procedures
Qualified Gas Connection
Gas supply connection must be done by qualified persons.
Gas Category Verification
Verify gas category matches appliance and packaging data.
Adequate Gas Supply and Pressure
Ensuring adequate gas supply for nominal heat output.
Gas Service Requirements
Need for service tap, filter, and purging before use.
Electrical Connection Guidelines
Qualified Electrical Work and Specifications
Electrical work by qualified persons; checking specifications.
Earthing and Isolator Requirements
Ensuring proper earthing and installing a key lockable isolator.
Ancillary Controls and Continuous Power
Ancillary controls and continuous power for fan operation.
Commissioning the Air Heater
General Commissioning Notes
ML series heaters require minimal commissioning due to factory testing.
Understanding ML Series Operation
Explanation of how the ML series air heaters operate.
Ignition, Safety, and Fan Operation
Details ignition, safety sequences, and fan operation.
Safety Shutoff and Overheat Controls
Details safety shutoff for combustion air and overheating.
Gas Rate Check and Adjustment
Procedure for checking and adjusting gas rate.
Lighting and Turning Off Procedures
Step-by-step guides for lighting and turning off the heater.
User Awareness at Commissioning
Ensuring user awareness of operation and maintenance.
Servicing and Maintenance
Servicing Safety and Component Warnings
Warnings against incorrect components; safety steps before servicing.
General Maintenance Schedule
Recommends annual maintenance and inspection.
Burner Rack Assembly Removal and Inspection
Procedure to remove burner rack for cleaning and inspection.
Burner Manifold Assembly Removal
Procedure to remove the burner manifold assembly.
Air Circulation Fan Servicing
Instructions for servicing the air circulation fan.
Motor Capacitor Replacement
Procedure for renewing the motor capacitor.
Combustion Air Fan (Venter) Servicing
Instructions for servicing the combustion air fan.
Thermal Overheat Control (LC3) Renewal
Procedure for renewing the thermal overheat control LC3.
Combustion Air Pressure Switch Renewal
Procedure for renewing the combustion air proving pressure switch.
Electronic Burner Control Renewal
Procedure for renewing the electronic burner control.
Fan/Limit & Ignition Device Renewal
Procedures for renewing fan/limit controls and ignition devices.
Post-Service Checks
Re-commissioning and checking external controls after service.
Gas Conversion Instructions
Gas Type Operation and Supply
ML series heaters operate on specific gas types as supplied.
Gas Conversion Requirements and Regulator Adjustment
Details conversion needs and regulator adjustment for gas types.
Conversion Procedure and Testing
Steps for conversion, referencing section 8 and testing.
Fault Finding Guide
Air Heater Will Not Light
Troubleshooting steps when the air heater fails to ignite.
Igniter Glows, No Ignition
Troubleshooting when igniter glows but heater doesn't light.
Burner Lights and Goes Out
Troubleshooting when burner lights and then shuts off.
Cool Air When Burner Is Off
Troubleshooting continuous cool air when burner is off.
Air Circulation Fan Issues
Troubleshooting fan not running or cycling issues.
Fan Stops While Burner Is Lit
Troubleshooting fan stopping while burner remains alight.
Heater Cycles on Overheat Control LC1
Troubleshooting heater cycling on thermal overheat control LC1.
Air Circulation Fan Keeps Running
Troubleshooting when the air circulation fan runs continuously.
Health and Safety Statement
First Firing Smoking and Ventilation
Information on smoking during initial firing and ventilation.
Material Safety Information
Details on materials used and absence of hazardous substances.
Insulation and Seals Safety
Safety information regarding insulation and seals, including hazards.
Component Safety: Thermostat & Capacitor
Safety information for thermostat and electrolytic capacitors.
User Instructions for Operating and Lighting
User Manual Importance and Service
Emphasizing manual importance, user satisfaction, and regular service.
About Your Air Heater
General information about the air heater's features.
How the Air Heater Works
Explanation of the burner control, gas valve, and ignition.
Lighting the Air Heater
Step-by-step instructions for lighting the air heater.
Turning Off for Short/Prolonged Periods
Instructions for turning off the heater for short or prolonged periods.
Important Overheat Control Note
Important note regarding thermal overheat control reset.
Air Circulation Override Feature
Explains the air circulation feature with override switch.
Maintenance and Servicing Schedule
Guidance on carrying out maintenance and servicing by competent persons.
Electrical Supply Shutdown Warning
Warning about switching off electrical supply without turning off gas supply.
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