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Explains danger, warning, caution, and note symbols used in the manual.
Crucial safety guidelines for installation, service, and operation by qualified personnel.
Lists substances that can damage the boiler's heat exchanger through corrosion.
Technical data including input, output, efficiency, and operating parameters.
Details required pipe sizes and types for different boiler connections.
Provides physical dimensions of the boiler unit for installation planning.
Highlights key features like high thermal efficiency, BACnet option, and pump control.
Outlines the warranty terms for the EX series heat exchanger and parts.
Lists essential precautions to follow before commencing boiler installation.
Specifies applicable national and local codes for boiler installation.
Guidance on selecting an appropriate installation site and required clearances.
Detailed instructions for proper venting system installation and materials.
Guidelines for rooftop and sidewall vent terminal installations.
Instructions for installing the combustion air intake piping.
Procedures for installing condensate traps and neutralizers.
Guidelines for proper system piping and water chemistry requirements.
Critical instructions for safe and compliant gas supply piping installation.
Procedures for safe and correct electrical wiring and hook-up.
Recommendations for surge protectors and power conditioning equipment.
Instructions for connecting the boiler to the 120VAC power supply.
Guidance on connecting thermostats and various sensors to the control board.
Essential checks before starting the boiler for the first time.
Step-by-step instructions for safely starting and stopping the boiler.
Steps for initial setup, fuel conversion, and performance verification.
Detailed steps for converting between natural gas and propane fuels.
Procedure for testing the gas supply pressure to the boiler.
Instructions for fine-tuning the gas valve for optimal combustion.
How to reset high/low gas pressure switches after a trip event.
Overview of required annual inspections and routine maintenance tasks.
Checks and cleaning required for the boiler's venting system.
Procedures for inspecting and cleaning the condensate trap.
Instructions for inspecting, cleaning, and maintaining the burner assembly.
How to inspect and clean the heat exchanger for fouling.
Ensuring proper antifreeze levels and system protection against freezing.
How to perform a "try lever test" on the pressure relief valve.
Step-by-step guides for replacing fan, gas valve, and burner.
Detailed instructions for removing and installing the fan assembly.
Detailed instructions for removing and installing the gas valve.
Detailed instructions for removing and installing the burner assembly.
Guides for replacing fan, gas valve, and burner in EX 700/850 models.
Steps for replacing the fan in EX 700 and EX 850 models.
Steps for replacing the gas valve in EX 700 and EX 850 models.
Steps for replacing the burner in EX 700 and EX 850 models.
Instructions for inspecting and replacing the boiler's air filter.
Procedures for cleaning and refilling the condensate trap.
Initial diagnostic steps including checking power, wiring, and gas supply.
Methods for diagnosing issues with sensors, fans, and pressure switches.
Testing procedures for supply, return, and flue temperature sensors.
Troubleshooting fan operation and air/water pressure sensors.
Understanding and resetting gas switches, and SIM module status.
Resetting and testing low water cutoff and hi-limit temperature functions.
Explains common error messages and their corresponding diagnoses and fixes.
Diagnosing and resolving ignition failure errors.
Troubleshooting errors related to gas pressure switches and temperature limits.
Common errors related to sensors, controller operation, and updates.
Diagnosing and fixing problems with the ignition system and temperature regulation.
Diagnosing and resolving rapid cycling or other operational cycle problems.
Electrical schematics for controller and internal boiler wiring.
A template form for recording installation and commissioning details.
Illustrated breakdown of boiler components and part numbers for EX 400/500.
Illustrated breakdown of boiler components and part numbers for EX 700/850.
Records changes made to the manual across different document versions.
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