Ambirad AR13 U - User Manual

AR/ARE SERIES
GAS FIRED RADIANT
TUBE HEATERS
Installation and
servicing manual

Summary

AR and ARE Series Gas Fired Radiant Tube Heaters

Natural Gas (I2 H) Pressure Requirements

Specifies maximum and minimum supply pressures for natural gas.

Propane (I3 p) Pressure Requirements

Specifies maximum and minimum supply pressures for propane.

Correct Gas Burning Pressure Table

Details correct gas burning pressures for various heater models.

Gas Connection Specifications

Connection Thread Type

States the gas connection is R1/2 (1/2in B.S.P internal thread).

Installation Standards and Regulations

Compliance with Safety Regulations

Details compliance with Gas Safety, IEE, and relevant British Standards.

Electrical Connection Details

Appliance Earthing and Supply Requirements

Details the appliance must be earthed, supply voltage, phase, and current rating.

Mains Lead Wiring Colour Code

Explains the colour coding for mains lead wires (Earth, Neutral, Live).

Mains Lead to Plug Connection Guide

Guides on connecting the mains lead to the plug terminals (E, N, L).

Circuits and Control Gear Requirements

Discusses rating for controls, switchgear, and connection methods for isolation.

Typical Wiring Connections Diagrams

Illustrates typical wiring connections for U Tube, SL, and DL Heaters.

AR Burner Internal Wiring Diagram

Provides a detailed internal wiring diagram for the AR burner.

Assembly Instructions Overview

Heater Model Data Sheet References

Lists data sheet references for various AR and ARE heater models for assembly.

Bracket Placement for AR22 UT;AR22 HB

Instructs on the placement of the bracket nearest the burner/open end.

Suspension Brackets for AR35;40 UT;HB Models

Details bracket types and placement for AR35/40 models, including U-bolt usage.

Suspension Brackets for AR45;50 UT;HB Models

Details bracket types and placement for AR45/50 models, including U-bolt usage.

Linear Heater Assembly Guidance

Provides general assembly instructions for AR SL/HB series, advising roof space assembly.

Health and Safety in Assembly

Installer Responsibility for Site Safety

States installer holds sole liability for site safety procedures.

Fixing Tubes and Brackets

U Tube Assembly Instructions

Instructions for supporting radiant tubes, positioning turbulators, and fitting suspension brackets.

AR13 UT;AR13 HB Bracket Specifics

Specifics on the single suspension bracket for AR13 models.

Reflector Fitting for U Tube Heaters

AR22 UT;AR22 HB Reflector Installation

Instructions for fitting two reflectors using M6 nuts and bolts.

AR35;40 UT;HB Reflector Section Fitting

Instructions for fitting multiple reflector sections and end caps.

AR45;50 UT;HB Reflector Section Fitting

Instructions for fitting multiple reflector sections and end caps.

Linear Heater Reflector Installation

AR SL;HB and ARE SL;HB Reflector Fitting

Instructions for fitting reflectors for AR SL/HB and ARE SL/HB series.

Burner, Fan, and Damper Assembly

Burner Control Assembly Mounting

Instructions for mounting the burner control assembly horizontally.

Fan;Damper Assembly Mounting Details

Instructions for mounting the fan/damper assembly, specifying discharge orientation.

Fixing Brackets Diagram (Figure 4)

Illustrates fixing brackets, including specific U-bolt details.

Suspension Bracket Types (Figure 5)

Shows diagrams of Type 'A' and Type 'B' suspension brackets.

Swaged Joint Detail (Figure 6)

Details the correct procedure for swaged joint connection.

Reflector End Caps and Mounting Diagrams

Fitting Reflector End Caps (Figure 7)

Illustrates fitting reflector end caps using M5 screws.

Inclined Mounting Diagram - Unflued (Figure 8)

Diagram showing correct inclined mounting for unflued heaters.

Inclined Mounting Diagram - Flued (Figure 9)

Diagram showing correct inclined mounting for flued heaters.

Double Linear Gas Radiant Tube Heaters

DL Heater Description and Function

Explains that DL heaters comprise two SL heaters with a combined condensate box and fan.

DL Heater Specifications Table

Details overall lengths, weights, and data sheet references for DL heaters.

Condensate Box Arrangement (Figure 10)

Illustrates the condensate box arrangement for DL heaters.

Double Linear Arrangement Diagram (Figure 11)

Shows a typical arrangement for double linear heaters.

Damper Settings for HB and DL Heaters

AR Linear Herringbone & DL Damper Settings

Table of damper settings for AR Linear Herringbone and DL heater types.

ARE Linear Herringbone & DL Damper Settings

Table of damper settings for ARE Linear Herringbone and DL heater types.

AR U Tube Herringbone Damper Settings

Table of damper settings for AR U Tube Herringbone heater types.

ARE U Tube Herringbone Damper Settings

Table of damper settings for ARE U Tube Herringbone heater types.

Installation: Heater Suspension Methods

Safety in Heater Suspension Attachment

Safety advice on attachment to heater bracket support lugs and thermal expansion.

Recommended Mounting Height Ranges

Table providing recommended mounting heights and clearances for AR/ARE models.

Suspension Angles and Chain Lengths for AR;ARE Models

Table detailing required angles, chain lengths, and eye bolt positions for suspension.

Heater Suspension and Clearance Details

Required Clearance Distances from Heater

Table specifying clearance distances from the heater to surrounding objects.

Methods of Heater Suspension (Figure 12)

Illustrates various methods of heater suspension, including chain and drop rod.

Wall Mounting Notes for UT Models

Note on wall mounting for UT models, specifying return bend and burner position.

Heater Mounting Diagrams

U Tube Heater Mounting Diagram (Figure 13)

Diagram showing the correct mounting for a 'U' tube heater, including condensate slope.

SL Tube Heater Mounting Diagram (Figure 14)

Diagram showing the correct mounting for an 'SL' tube heater, including condensate slope.

Flue Connection and Ventilation

Ventilation Requirements for Unflued Heaters

Details ventilation requirements for unflued installations (natural and mechanical).

Requirements for Flued Heater Installations

Specifies requirements for flued installations, including diverters and flue pipe details.

Ventilation Rates for Flued Installations

Ventilation rates for flued installations based on heater output.

Fresh Air Ducted Inlet Systems

Conditions Requiring Ducted Fresh Air Supply

Explains when a ducted fresh air supply is needed and installation details.

Fresh Air Duct Connection Procedures

Details connection of fresh air ducting, including pressure sensing tube adjustment.

Commissioning Procedures

Pre-Commissioning Installation Checks

Instructions for inspecting installation, electrical, and gas supplies before operation.

Heater Start-up Sequence Description

Describes the expected start-up sequence, including lamp indicators and purge period.

Lock-out Condition and Resetting

Explains what happens during lock-out and how to reset or investigate.

Flame Failure and Re-ignition Handling

Details procedures for flame loss, re-ignition attempts, and lock-out.

Setting Burner Gas Pressure

Guides on setting burner gas pressure using a manometer.

Flame Safe Guard Operation Verification

How to check the operation of the flame safe guard equipment.

Vacuum Proving Switch Function Test

How to check the function of the vacuum proving switch.

Routine Service and Maintenance

ID Fan Inspection and Cleaning

Instructions for removing, inspecting, and cleaning the ID fan.

Emitter Tube Inspection and Cleaning

Procedures for inspecting and cleaning the emitter tubes and turbulators.

Reflector Cleaning and Impact

Guidance on inspecting and cleaning reflectors, noting their impact on radiation.

Component Replacement Procedures

Safety Precautions for Repairs

Emphasizes isolating supplies and testing for gas soundness before repairs.

Replacing the ID Fan Assembly

Step-by-step guide for replacing the ID fan assembly.

Replacing Burner;Control Assembly Components

General steps for removing and refitting the burner/control assembly.

Replacing the Electrode Assembly

Instructions for replacing the electrode assembly, including gap adjustment.

Component Replacement: Injector and Valves

Replacing the Injector Unit

Guidance on removing and replacing the injector, including size selection.

Replacing the Gas Safety Control Valve

Steps for removing and replacing the gas safety control valve assembly.

Replacing the Electronic Sequence Controller

Instructions for replacing the electronic sequence controller unit.

Replacing the Vacuum Proving Switch

Steps for disconnecting and replacing the vacuum proving switch.

AR Burner Assembly Diagram (Figure 15)

Diagram illustrating the AR burner assembly components.

Vacuum Proving Switch Diagram (Figure 16)

Diagram showing the S.I.T. vacuum proving switch and its terminals.

Troubleshooting Checklist

Burner Fails to Start (No Mains Light)

Lists possible causes and remedies for the burner failing to start.

Red Light Illuminated Troubleshooting

Troubleshooting steps when the red light is illuminated.

Fan Starts, No Ignition (HB Herringbone)

Specific troubleshooting for fan start but no ignition in HB Herringbone systems.

Ignition Stage Reached, No Light (HB Herringbone)

Troubleshooting steps when ignition stage is reached but burner fails to light.

Burner Shuts Down Shortly After Ignition

Possible causes and remedies for the burner shutting down shortly after ignition.

Heater Shuts Down After Extended Operation

Troubleshooting for heaters shutting down after extended operation.

User Instructions for Ambi-Rad AR and ARE Series

Compliance with Installation Codes

States the appliance must be installed by a competent person per codes of practice.

Mandatory Appliance Earthing Warning

Emphasizes the mandatory earthing of the appliance.

Proximity Warning: Objects Against Heater

Advises against resting objects, especially ladders, against the heater.

Procedure to Start the Ambi-Rad Heater

Step-by-step guide for starting the Ambi-Rad heater.

Procedure to Switch Off the Ambi-Rad Heater

Instructions on how to safely switch off the Ambi-Rad heater.

Regular Servicing Recommendation

Recommends regular servicing by a competent person for continued safe operation.

Ambirad AR13 U Specifications

General

Brand	Ambirad
Model	AR13 U
Category	Gas Heater
Language	English