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Installation, Operation and Maintenance Instructions
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualified in hot water boiler installation and maintenance. Improper installation and/or operation could
create carbon monoxide gas in flue gases which could cause serious injury, property damage, or
death. Improper installation and/or operation will void the warranty. As an additional measure of safety,
Laars strongly recommends installation of suitable carbon monoxide detectors in the vicinity of this
appliance and in any adjacent occupied spaces.
WARNING
If the information in this manual is not
followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
nearby phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call
the fire department.
Installation and service must be performed by
a qualified installer, service agency, or gas
supplier.
Installation,
Operation and
Maintenance
Instructions for
Endurance
EBP Series Modulating Combination Boiler
EDP Series Modulating Hydronic Boiler
EDN Series Modulating Boiler, non ferrous
WARNING
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d'incendie ou d'explosion ou
pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d'essence ni
d'autres vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d'allumer d'appareils.
• Ne touchez à aucun interrupteur. Ne pas vous
• Appelez immédiatement votre fournisseur de
• Si vous ne pouvez rejoindre le fournisseur de
L'installation et l'entretien doivent être assurés par
un installateur ou un service d'entretien qualifié ou
par le fournisseur de gaz.
A subsidiary of BRADFORD WHITE Corporation
(natural or propane gas)
(natural or propane gas)
(natural or propane gas)
AVERTISSEMENT
servir des téléphones dansle bâtiment où vous
vous trouvez.
gaz depuis un voisin. Suivez les instructions
du fournisseur.
gaz, appelez le sservice des incendies.
Document 1187B
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Table of Contents
Related Manuals for Laars EBP0175
Summarization of Contents
General Information
Introduction
Describes the appliance as a low pressure, direct vent, hot water boiler.
Codes and Standards
Details installation requirements based on National Fuel Gas Code and local codes.
Appliance Location and Clearances
Guidance on unit placement, installation requirements, and minimum clearances from combustibles.
Venting Options
Concentric Direct Vent Systems
Describes concentric direct vent systems, kits, and terminal placement requirements.
Category IV Venting
Details requirements for Category IV venting using stainless steel pipe.
Combustion Air Sources
Details air sources for combustion, including indoor and outdoor options.
Non-Concentric Combustion Air
Discusses alternative non-concentric combustion air sources and requirements.
Gas and Water Piping
Gas Piping Requirements
Details gas supply pressure and installation requirements according to codes.
Domestic Water Piping (EBP)
Details piping for domestic hot water on EBP models, including tempering valves.
Hydronic Heat Piping
Hydronic Piping Capabilities
Describes the appliance's internal pump and piping capabilities for heating zones.
Anti-Freeze for Domestic Water
Discusses low temperature feature and anti-freeze additives for domestic water.
Combined Heating/Chilled Water Systems
Guidance for integrating with chilled water cooling systems.
Water Quality and Treatment
Importance of water quality and potential issues like scale and corrosion.
Boiler Freeze Protection
Low Temperature Feature
Explains the built-in feature to protect against freezing.
Anti-Freeze Boiler Additives
Recommends non-automotive anti-freeze for hydronic systems.
Safety Before Operating
Operating Instructions
Step-by-step guide for safe operation of the appliance.
Turning Off Gas Supply
Procedure for safely shutting off the gas supply to the appliance.
Electrical Connections
Wiring and Connections
Details wiring requirements, grounding, and connections for single and multiple zones.
Boiler Control Operation
Control Panel Display and Logic
Describes the control panel display, LEDs, and the logic for burner modulation.
Setpoint Configuration
Explains access to setpoints and configuration of temperature, pump, and reset parameters.
Advanced Control Settings
Details calculated values, differentials, and shutdown parameters for fine-tuning.
Control Functions and Operations
Covers alarm acknowledgement, power control, fire holds, pump, and ACV operations.
Boiler Start Up Procedures
Removal from Common Vent
Procedures for removing a boiler from a common venting system.
Filling the System
Steps for filling the system with water and purging air.
Firing the Burner
Instructions for starting the burner and initial operation.
Maintenance and Components
Unit Pump Details
Details the pump's operation and replacement procedure.
Gas Valve Information
Describes the gas valve and its removal/replacement.
Safety Limit Switch
Information on the safety limit switch and its replacement.
Boiler Control Overview
Overview of the boiler control and its functions.
Ignition Control and Ignitor
Details the ignition control, ignitor/flame sensor, and replacement.
Transformer and PWM Board
Information on the transformer and PWM board and their replacement.
Blower and Transfer Tank
Details the combustion air blower and EBP transfer tank replacement.
Thermostatic Union (EDP/EDN)
Describes the thermostatic union for EDP/EDN models.
Boiler Coil Cleaning
Instructions for cleaning the boiler coil.
Servicing and Operation Sequence
Sequence of Operation
Describes the sequence of operation for heating and domestic water calls.
Troubleshooting Faults
Fault Code Identification
Lists fault codes displayed by the boiler control.
Fault Correction Procedures
Provides troubleshooting steps for identified fault codes.
Resolving Lockouts
Explains common causes and resolution for lockouts.
Symptom Evaluations
Delayed Ignition Issues
Possible causes and remedies for delayed ignition.
Short Cycling Causes
Identifies causes for short cycling of the boiler.
Noisy Operation Diagnosis
Explains sources of combustion and boiling noises.
Insufficient Hot Water (EBP)
Lists common causes for insufficient hot water on EBP models.
High Gas Consumption Causes
Discusses causes of high gas consumption and efficiency.
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