A.O. Smith BTX-80 Main Burner, High Temperature Limit Switch, Power Venter Maintenance, Valve

Models: BTX-80

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SERVICE SHOULD BE PERFORMED ONLY BY A QUALIFIED SERVICE TECHNICIAN. READ THE GENERAL SAFETY INFORMATION SECTION FIRST.

USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS COMPONENTS WEAR OUT OVER A PERIOD OF TIME. THE GAS CARRYING COMPONENTS OF THIS APPLIANCE SHOULD BE INSPECTED FOR PROPER OPERATION PERIODICALLY BY A QUALIFIED SERVICE TECHNICIAN.

MAIN BURNER

Check main burner every 12 months for proper flame characteristics. This is done by removing the outer door on heater, Fig. 1. The main burner should provide complete combustion of gas; ignite rapidly; give reasonably quiet operation; cause no excessive flame lifting from burner ports. Make sure that the flow of combustion and ventilation air is not blocked.

If proper flame characteristics are not evident, check for accumulation of lint or other foreign material that restricts or blocks the air openings in the heater or burner. Also check AIR REQUIREMENTS.

WARNING

SOOT BUILD-UP INDICATES A PROBLEM THAT REQUIRES CORRECTION BEFORE FURTHER USE. Consult with a qualified service technician.

Should the main burner or burner air openings require cleaning, turn the control switch to “OFF” position and allow the burner to cool. Remove the burner and clean with a soft brush. Clean main burner orifice with a suitable soft material.

HIGH TEMPERATURE LIMIT SWITCH

(Auto Reset Type Energy Cut-Off)

TO RESET AUTOMATIC GAS SHUTOFF

This water heater is equipped with an automatic reset type high limit (Energy Cutoff) sensor. The high limit switch interrupts the main burner gas flow should the water temperature reach 205°F (96°C). The high limit will automatically reset when the water temperature drops below 140°F (60°C). After cooling the tank temperature, turn off the water heater for at least 10 seconds by using the switch on top of the unit. Turn on the water heater. If this fails to correct the problem, contact your plumber or service representative.

POWER VENTER MAINTENANCE

The unit must be inspected quarterly. Points of inspection are:

1.MOTOR - Motor must rotate freely. This is a sealed motor and no oiling is required.

2.WHEEL - Wheel must be clean of soot, ash or any other coating which inhibits either rotation or air flow. Remove all foreign material from vent system before operating.

3.The pressure switch part inside the power venter must be open and free from deposits of soot, carbon, etc.

For safety and satisfactory operation it is recommended that the heater be checked once a year by a competent service person.

T & P VALVE

At least once a year, the temperature and pressure relief valve must be checked to ensure that it is in operating condition. Lift the lever at the top of the valve several times until the valve seats properly and operates freely.

WARNING

THE WATER PASSING OUT OF THE VALVE DURING THIS CHECKING OPERATION MAY BE EXTREMELY HOT. AVOID CONTACT AND DISCHARGE SAFELY TO PREVENT WATER DAMAGE.

DRAINING

Periodically open the drain valve and allow the water to run until it flows clean. This will help prevent sediment build-up in the tank.

It is normal for lime and scale deposits to form within the tank and on the heat exchanger surfaces. Such deposits will not be removed by periodic draining. It is necessary to chemically delime the affected parts in water areas where such deposits are encountered. Contact your dealer or plumber for deliming information.

If the heater is to be shut off and exposed to freezing temperatures, it must be drained. Water, if left in the tank and allowed to freeze, will damage the heater.

Turn off the gas and cold water inlet valve to the heater.

Open a nearby hot water faucet and the heater drain valve.

BE CAREFUL TO GRASP THE DRAIN VALVE HANDLE SO THAT THE HAND IS NOT EXPOSED TO HOT WATER. IF DESIRED, A HOSE MAY BE CONNECTED TO THE DRAIN VALVE TO CARRY THE WATER AWAY.

WARNING: The water CAN BE HOT.

The drain valve must be left open during the shutdown period.

• To restart heater, refer to the instructions under OPERATION.

CONDENSATE INSIDE TANK ASSEMBLY

Water vapor can condense on the cooler surfaces of the tank forming droplets, these drip into the fire or run out on the floor. This is common at the time of startup after installation, during periods of time when incoming water is very cold, or the heater may be undersized for the requirements.

Droplets from the bottom of the flue may be due to corrosive combustion products or improper vent. Check with your dealer for more information.

CATHODIC PROTECTION-ANODE

The anode rod is used to protect the tank from corrosion. Most hot water tanks are equipped with an anode rod. The submerged rod sacrifices itself to protect the tank. Instead of corroding the tank, water ions attack and eat away the anode rod. This does not affect the water’s taste or color. The rod must be maintained to keep the tank in operating condition.

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A.O. Smith BTX-80 warranty Main Burner, High Temperature Limit Switch, Power Venter Maintenance, Valve, Draining

BTX-80 specifications

The A.O. Smith BTX-80 is a high-efficiency water heater designed to meet the needs of both residential and light commercial applications. Engineered with the latest technology, this unit promises reliability and superior performance, making it a standout choice for those seeking an efficient hot water solution.

One of the primary features of the BTX-80 is its energy efficiency. With a high Energy Factor (EF) rating, this water heater is designed to minimize energy consumption while delivering reliable hot water. This feature not only helps owners save on utility bills but also contributes to a more sustainable living environment.

The BTX-80 utilizes advanced condensing technology, allowing it to extract heat from exhaust gases that would typically be expelled. This process enhances its efficiency and reduces the amount of fuel needed to heat water, ensuring that users benefit from lower operating costs. The unit comes equipped with a built-in power vent system, which allows for flexible installation options and an easy, straightforward setup.

Another notable characteristic of the A.O. Smith BTX-80 is its robust build quality. Designed with durable materials, it features a glass-lined tank that helps prevent rust and corrosion, extending the lifespan of the unit. The BTX-80 is also equipped with advanced insulation, which ensures minimal heat loss and improved energy retention.

Safety features are paramount when it comes to water heating, and the BTX-80 does not disappoint. It includes a fully integrated safety system that protects against overheating and excessive pressure, ensuring peace of mind for homeowners and business operators alike.

Additionally, the BTX-80 has a user-friendly digital display and diagnostic control system, allowing users to easily monitor and adjust settings. It also features multiple installation configurations to adapt to various space requirements.

In summary, the A.O. Smith BTX-80 water heater combines high energy efficiency, advanced condensing technology, robust construction, and user-friendly features. Ideal for those seeking a reliable and sustainable hot water solution, this model is a testament to A.O. Smith's commitment to innovation and quality in the water heating industry.