The AO Smith BTHS-750A is a high-efficiency gas water heater designed for commercial use, offering 750,000 BTU/h input and 882 GPH at 100°F rise․ Built for reliability, it features advanced combustion technology and modulating burners for consistent performance․ This model is ideal for demanding applications, ensuring ample hot water supply while maintaining energy efficiency․ The unit is supported by a comprehensive installation manual, emphasizing safety and proper setup for optimal operation․
1․1 Overview of the AO Smith BTHS-750A Model
The AO Smith BTHS-750A is a high-performance, commercial-grade gas water heater designed for demanding applications․ It operates with a maximum BTU input of 750,000 and delivers 882 gallons per hour at a 100°F temperature rise․ This model features a modulating burner for precise temperature control and enhanced efficiency․ Part of the Cyclone XL series, it is known for its robust design, intelligent control system, and condensing technology, which ensures high energy efficiency․ The BTHS-750A is ideal for heavy-duty commercial use, offering reliable hot water supply while maintaining operational efficiency․ Its compact design and advanced features make it a preferred choice for spec jobs․
1․2 Key Features and Benefits
The AO Smith BTHS-750A offers high efficiency with 750,000 BTU input and 882 GPH at 100°F rise․ Its modulating burner ensures precise temperature control, enhancing efficiency and consistency․ The condensing technology optimizes heat usage, reducing energy waste․ Intelligent controls provide smart operation and monitoring, while the robust design ensures durability for heavy-duty commercial use․ Optional kits like condensate neutralization and leak detection add safety and convenience․ This model balances performance, efficiency, and reliability, making it ideal for demanding applications with high hot water demands․ Its advanced features and durable construction minimize downtime and operational costs․
Pre-Installation Considerations
Ensure compliance with local codes, proper ventilation, and sufficient clearances․ Review safety precautions, gather required tools, and prepare the site before starting the installation process․
2․1 Safety Precautions and Warnings
Always follow safety guidelines when installing the AO Smith BTHS-750A․ Read the manual thoroughly before starting․ Ensure proper ventilation to avoid carbon monoxide risks․
Turn off power and gas supply before handling․ Wear protective gear, including gloves and safety glasses․ Never skip safety precautions to prevent accidents․
Ensure all connections are secure to avoid gas leaks․ Follow local codes and regulations strictly․ Improper installation can lead to hazards or system failure․
Keep the area clear of flammable materials and ensure adequate combustion air supply․ Failure to comply may result in serious injury or property damage․
2․2 Required Tools and Materials
Before starting the installation of the AO Smith BTHS-750A, gather the necessary tools and materials․ Essential tools include an adjustable wrench, screwdrivers, pliers, and a level․
You will also need a gas line, water supply lines, and electrical connectors․ Ensure you have venting components, such as a venting kit, to meet local codes․
Additional materials may include a condensate neutralization kit (if required) and a leak detection kit for added safety․ Always refer to the manual for specific requirements․
Proper tools and materials are crucial for a safe and efficient installation․ Failure to use correct components may void the warranty or pose safety risks․
2․3 Site Preparation and Clearances
Proper site preparation is critical for safe and efficient installation of the AO Smith BTHS-750A․ Ensure the installation area is clean, dry, and level․
Maintain minimum clearances of 0 inches on sides and rear, and 1-1/2 inches on the front for proper access and ventilation․
Ensure adequate combustion air supply, as specified in local codes․ The area must be free from flammable materials and obstructions․
Verify the floor can support the unit’s weight and ensure all venting and piping paths are clear․ Proper preparation ensures compliance with safety standards and optimal performance․
Installation Process
The installation involves unpacking, inspecting, and connecting gas, water, and electrical components․ Proper venting and final checks ensure safe and efficient operation, complying with local codes․
3․1 Unpacking and Inspecting the Unit
Begin by carefully unpacking the AO Smith BTHS-750A water heater to avoid damage․ Inspect the unit for any visible damage or defects․ Check all components, including the burner, venting, and controls, to ensure they are intact and properly secured․ Verify that all necessary parts, such as the installation manual, are included․ Before proceeding, ensure the unit is stored in a dry, secure location to prevent accidental damage during the installation process․ Proper inspection ensures a smooth and safe installation experience․
3․2 Gas Connection and Venting Requirements
Ensure the gas line is sized correctly to handle the BTHS-750A’s 750,000 BTU/h input․ Use approved materials like stainless steel or PVC for venting, adhering to local codes․ Proper venting is critical for safe operation; ensure vents are unobstructed and meet combustion air requirements․ Maintain minimum clearances around vents to prevent heat damage․ Follow the manual’s guidelines for gas line connections and vent termination to ensure compliance with safety standards and optimal performance․ Proper installation prevents hazards and ensures efficient operation, as outlined in the AO Smith BTHS-750A installation manual․
3․3 Water Connection and Electrical Setup
Connect the water supply lines to the BTHS-750A, ensuring compatibility with the unit’s inlet and outlet sizes․ Use approved materials to prevent leaks and corrosion․ Check for proper water pressure to avoid damage․ For electrical setup, ensure the power supply matches the unit’s voltage requirements, typically 120VAC․ Ground the unit properly to prevent electrical hazards․ Follow local codes for wiring and connections․ Test all connections before starting the heater to ensure functionality and safety․ Proper water and electrical setup ensures efficient and safe operation of the AO Smith BTHS-750A water heater․
3․4 Final Installation Checks
After completing the installation, inspect all connections for leaks and ensure they are secure․ Verify proper venting system installation and absence of obstructions․ Test the water heater’s operation by running a full cycle to ensure correct functionality․ Check temperature and pressure relief valves for proper operation․ Confirm electrical connections are secure and meet local codes․ Ensure gas lines are leak-free using a soap solution or approved method․ Finally, review all installation steps to confirm compliance with the manual and local regulations․ A successful test run under load ensures the AO Smith BTHS-750A operates safely and efficiently․
Operating and Maintenance Instructions
Regular maintenance ensures optimal performance and longevity․ Check temperature settings, inspect for leaks, and clean filters monthly․ Descale heat exchanger annually to prevent mineral buildup․
4․1 Initial Start-Up and Testing
After installation, ensure all connections are secure and leak-free․ Open the gas supply and set the temperature to the desired level․ Power on the unit and check for ignition․ Verify proper operation by monitoring the burner flame and water temperature․ Test the thermostat by adjusting settings and ensuring the heater responds correctly․ Inspect all components, including vents and drains, for proper function․ Refer to the manual for specific start-up procedures and safety guidelines․ Ensure the unit meets all performance expectations before regular use․
4․2 Regular Maintenance Tips
Regularly inspect the gas and water connections for leaks․ Check the venting system for blockages and ensure proper combustion air supply․ Clean the burner and heat exchanger annually to maintain efficiency․ Verify that the temperature and pressure relief valve is functioning correctly․ Test the thermostat settings to ensure accurate water temperature control․ Schedule annual professional maintenance to inspect internal components and ensure safe operation․ Keep the area around the heater clear of debris for proper airflow․ Refer to the manual for detailed maintenance procedures and guidelines to extend the unit’s lifespan and performance․
4․4 Troubleshooting Common Issues
Common issues with the AO Smith BTHS-750A include error codes such as E01 (ignition failure), E02 (low gas pressure), and E03 (high temperature)․ Check the gas supply, venting, and ignition components for proper function․ If the water temperature is inconsistent, ensure the thermostat is set correctly and verify water flow rates․ For error codes, reset the unit by turning off power, waiting 30 seconds, and restarting․ Refer to the service handbook for detailed troubleshooting steps․ Always address issues promptly to maintain efficiency and safety․ If problems persist, contact a certified technician for professional assistance․
Technical Specifications and Compliance
The AO Smith BTHS-750A operates at 750,000 BTU/h input, delivering 882 GPH at 100°F rise․ It complies with local codes, ASHRAE, and NSF standards, ensuring reliability and safety․
5․1 BTU Input and Recovery Rates
The AO Smith BTHS-750A has a maximum BTU input of 750,000 BTU/h, ensuring high efficiency․ It provides a recovery rate of 882 gallons per hour at a 100°F temperature rise, making it suitable for commercial applications with high hot water demands․ This robust performance is achieved through advanced combustion technology and a modulating burner, which optimizes energy use․ The unit’s design ensures consistent water temperature and quick recovery, meeting the needs of large facilities․ Its energy-efficient operation reduces costs while maintaining reliable service․
5․2 Compliance with Local Codes and Regulations
The AO Smith BTHS-750A is designed to meet or exceed local and national codes, including ASHRAE, NFPA, and UL standards․ It complies with gas and plumbing regulations, ensuring safe and legal installation․ Proper installation and adherence to the manual are crucial for maintaining compliance․ Always verify local requirements before installation and consult authorities if necessary․ The unit’s certifications and design ensure it aligns with industry standards, providing peace of mind for commercial applications․
Safety Information and Best Practices
Ensure proper ventilation and combustion air supply to prevent hazardous conditions․ Follow all safety precautions outlined in the manual․ Regular maintenance and leak checks are essential for safe operation․
6․1 Proper Ventilation and Combustion Air Requirements
Proper ventilation and combustion air are critical for safe and efficient operation of the AO Smith BTHS-750A․ Ensure the water heater is installed in a well-ventilated area, following local codes and the manual’s guidelines․ Use approved venting materials, such as Category III stainless steel, and ensure the venting system is correctly sized and configured․ Maintain proper clearance from combustible materials and avoid restricting airflow․ The unit requires adequate combustion air to prevent backdrafting and ensure complete fuel combustion․ Refer to the installation manual for specific venting requirements and combustion air supply recommendations to ensure compliance and safety․
6․2 Leak Detection and Emergency Shutdown Procedures
Ensure the AO Smith BTHS-750A water heater is equipped with a reliable leak detection system to prevent potential water damage and safety hazards․ The optional leak detection kit, part number 100302557, is available for the BTHS-750A and BTHS-1000A models, providing early warning of leaks․ In case of a detected leak or emergency, immediately shut off the gas supply and electrical power to the unit․ Ventilate the area to prevent gas accumulation and avoid any ignition sources․ Consult the installation manual for specific shutdown procedures and ensure regular system checks are performed to maintain safety and efficiency․
The AO Smith BTHS-750A water heater is a robust and efficient solution for commercial hot water needs, offering high performance and reliability․ Proper installation, maintenance, and adherence to safety guidelines are crucial for optimal operation; By following the installation manual and recommended practices, users can ensure longevity and safety․ AO Smith’s commitment to quality and customer support makes this model a trusted choice for demanding applications․ Always refer to the provided resources and technical support for any assistance, ensuring a trouble-free experience with the BTHS-750A․