FULTON Endura+ Series

Questions and Answers

M
maldonadoashleyAug 19, 2025
What to do if the main flame fails on my FULTON Endura?
- U
  ujensenAug 20, 2025
  If the main flame fails in your FULTON Boiler, possible causes include ignition issues (visually verify spark and replace igniter or transformer if needed), an improperly set gas valve (verify the last elbow gas pressure matches the start up report), flame detector failure (visually verify the flame, check the flame detector eye, and replace the scanner if necessary), insufficient gas supply (verify manual shut-off valves are open and adjust incoming gas pressure), a blocked gas filter (replace the gas filter), or a blocked air supply (verify venting is not obstructed and the filter is not plugged).
K
Kevin WatsonAug 22, 2025
Why does the High Back Pressure Switch trip on my FULTON Endura Boiler?
- L
  lbatesAug 23, 2025
  If the High Back Pressure Switch trips and causes your FULTON Boiler to shut down, it could be due to excessive vent pressure. This condition will automatically recycle, so the boiler will attempt to relight. You should check the venting for obstructions and clean it. Also, verify the switch setting.
R
Rebecca HernandezAug 26, 2025
What does it mean when the Gas Pressure alarm is annunciated on my FULTON Endura?
- J
  Jason DavisAug 26, 2025
  If a Gas Pressure alarm is annunciated on your FULTON Boiler, it indicates either insufficient gas pressure or gas pressure to the manifold is too high. This will shut down the burner. When gas pressure is restored, the alarm will remain on, and the boiler will remain locked out until the gas pressure switch is manually reset. Locate the cause and correct it. If there is a high gas manifold pressure condition, qualified service personnel must correct the problem before restarting the boiler.
R
reneegreeneAug 28, 2025
What causes the main flame to fail during firing period in my FULTON Boiler?
- C
  Craig TorresAug 28, 2025
  If the main flame fails during the firing period of your FULTON Boiler, it could be that the main gas control valve is de-energized, causing the control to enter “lockout” mode and illuminating the flame failure indicator. The programmer must be manually reset, and you should check the wire connections.
G
gcallahanAug 30, 2025
What should I do if the high water temp alarm is annunciated on my FULTON Endura Boiler?
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  guerradouglasAug 31, 2025
  If the high water temperature alarm is annunciated on your FULTON Boiler, the boiler water has exceeded both the operating and high-limit temperatures. Even when the water temperature falls below the high-limit, the boiler will remain locked out until the controller is manually reset. You should locate the cause and correct it. Once the control is reset, the sequence returns to normal operation provided that the other limits are satisfied.
D
Dr. Alan HudsonSep 2, 2025
What should I do if the Manual Reset limit device trips on my FULTON Boiler?
- S
  Samantha JonesSep 2, 2025
  Manual Reset Limits include flame safeguard, high or low gas pressure, and high temperature limit. DO NOT reset the FULTON Boiler without determining and correcting the cause.
S
Shelly RoseSep 5, 2025
Why does my FULTON Endura Boiler fail while modulating?
- B
  Brooke FinleySep 5, 2025
  If your FULTON Boiler fails while modulating, it could be due to an improperly set gas valve (verify the last elbow matches the start up report) or a blocked air supply if you have a direct vent system (verify venting is not obstructed).
C
Cindy Walton MDSep 8, 2025
How do I fix burner harmonic or resonance in my FULTON Endura Boiler?
- M
  Marc YoungSep 8, 2025
  If you're experiencing burner harmonic or resonance in your FULTON Boiler, it may be due to improper combustion parameters or a fouled filter or burner. Inspect the air filter and replace it if dirty. Inspect the burner and clean it according to maintenance instructions if dirty. Verify combustion at all operating points. Proceed to resonator adjustment ONLY AFTER verifying the above and consulting the factory for resonator adjustment.
L
lortizSep 12, 2025
What happens to my FULTON Endura during a power outage?
- N
  ngomezSep 12, 2025
  If there is a power outage to the boiler room, the entire FULTON Boiler system is disabled and de-energized. When power returns, the boiler will need to be manually reset, as it will be in the lockout position.
J
Jamie RogersSep 13, 2025
How to fix a FULTON Boiler when the control does not illuminate?
- T
  thomasmccoySep 13, 2025
  If the control on your FULTON Boiler does not illuminate, the issue could be with the 24 VDC Power Supply. Check the fuse or circuit breaker and reset or replace it as necessary.

Summary

Introduction

Overview

Provides an overview of the manual's purpose and the boiler's pre-shipment inspections.

Warnings and Cautions

Highlights critical safety information to prevent injury, death, or equipment damage.

Disclaimers and Local Codes

Outlines installation compliance with national, state, and local codes and standards.

Installation

Product Overview

Details the Endura+ boiler's features, certifications, and components included with the unit.

Placement and Rigging

Provides essential guidelines for the proper placement and rigging of the boiler to ensure safe installation.

Clearances and Serviceability

Details required clearances for safe operation, maintenance, and serviceability.

Install Water Piping

Outlines proper procedures and requirements for installing water piping systems.

Meet Water Chemistry Requirements

Specifies crucial water chemistry requirements for boiler longevity and warranty.

Gas Supply Piping

Covers requirements for supplying natural gas to the boiler for efficient combustion.

Venting Requirements

Outlines essential requirements for the boiler's venting system, including pressure drop and draft.

Combustion Air Intake

Details requirements for supplying combustion air to the boiler room and directly to the boiler.

Flue Gas Exhaust Venting

Requirements for appropriate venting materials and installation for flue gas exhaust.

Electrical Connections and Devices

Details on electrical connections, voltage limits, and wiring practices for the boiler.

Integrated Lead;Lag Sequencing Wiring

Details on integrated lead/lag sequencing capabilities for multiple boilers.

Auxiliary Safety Interlock for External Devices

Connecting external devices for safety interlocks, like fan operation or motorized louvers.

Emergency Stop (E-STOP)

Connecting an emergency shutdown switch or remote control panel.

Operation

Perform Pre-Start-Up Inspection

Checklist of essential pre-start-up inspections before operating the boiler.

Fill and Purge the System

Procedure for completely filling and purging the heating system with water.

Commission The Boiler

Steps and requirements for commissioning the boiler, including verification and manual review.

Siemens LMV3 Control

Introduction to the Siemens LMV3 burner management system and its interface.

Steps to Enter Parameters

Step-by-step guide to accessing and entering boiler parameters using the LMV3 control.

Adjusting Fuel;Air Curve

Procedure for adjusting fuel/air curve points using a calibrated flue gas analyzer.

Manual Control (Manual Request for Output)

How to manually control boiler output and return to automatic mode.

Parameter Backup

Procedure for backing up boiler control parameters for safety and reference.

Parameter Restore

Procedure for restoring boiler control parameters from a backup.

Using the Endura+ PURE Control Interface

Overview of the PURE Control touchscreen interface for commissioning and operation.

Boiler Control

Accesses individual boiler and ancillary functions, including boiler status.

Safety Device Status

Indicates the status of safety devices, showing open or closed circuits.

Operator Control

Allows control of Start/Stop Deviations, Anti-Cycle Timer, and Manual Burner Control.

Lead;Lag

Setup for integrated multiple boiler sequencing (Lead/Lag) over Ethernet/IP network.

Setpoint

Maintains supply water temperature based on setpoint from various sources.

Commissioning Mode

Places the boiler in commissioning mode for adjusting combustion parameters.

Perform Test of Limit Controls

Tests high limit control by setting a lower temperature value.

Maintenance

General

Overview of maintenance practices for safety, efficiency, and reliability of Endura+ boilers.

Daily Maintenance and Inspection Schedule

Daily checks including temperature, air flow, and boiler area cleanliness.

Weekly Maintenance and Inspection Schedule

Weekly checks including main flame observation and fuel/air adjustment.

Monthly Maintenance and Inspection Schedule

Monthly checks including limit controls, flue gas temperature, and pressure switches.

Annual Maintenance and Inspection Schedule

Tasks performed annually by a factory trained technician for boiler upkeep.

Removing, Inspecting and Cleaning Burner

Step-by-step guide for removing, inspecting, and cleaning the boiler's burner assembly.

Inspecting the Pilot Ignition Assembly

Annual inspection procedure for the pilot ignition assembly.

After All Repairs and Maintenance

Final checks and documentation required after completing maintenance tasks.

Troubleshooting

Guides for diagnosing and resolving common boiler problems and their causes.