Sequence of Operation…

During initial start-up or a call for heat, the control will verify the vacuum switch is open.

Once the control verifies the blower vacuum switch is open, the control will energize the blower motor for the pre-purge sequence (approximately 5 seconds).

The control will verify the blower vacuum switch has closed, ensuring that the blower is functioning properly and that the venting system is not blocked.

The control will then proceed through a sequence of self-diagnostics before initiating a trial for ignition.

During the trial for ignition, the hot surface ignitor will warm up.

Once the hot surface ignitor warms up, the main gas valve will open allowing gas to flow to the main burner.

Once the main burner ignites, the control will verify that the burner flame is present through the flame sense circuit. The hot surface ignitor will then turn off.

The main burner will remain lit throughout the heat cycle until the water temperature setting is reached.

Once the water temperature setting is reached, the control will close the main gas valve which will extinguish the main burner flames.

The blower motor will stay energized for an additional 30 seconds after the control verifies that the burner flame is extinguished in order to clear combustion gases from the water heater.

After the post-purge sequence, the control will de-energize the blower motor and go into a stand-by mode awaiting the next call for heat.

This water heater is equipped with a flammable vapor sensor that is monitored continuously by the electronic control in all modes of operation.

In the event that flammable vapors are detected, the control will automatically shut down the water heater and prevent the water heater from being started again.

The following is a list of materials that will cause the Flammable Vapor Sensor to shut down the water heater.

Vapors of Gasoline.

Vapors of certain flammable paints, stains, and thinners.

Vapors of vent pipe Cement & Solvents.

Bleach (direct contact with flammable vapor sensor).

Some other flammable materials and their vapors.

If the flammable vapor sensor shuts down the water heater, then the electronic control will display the appropriate error code and you should then promptly

contact a qualified service technician.

Refer to the “Notice” on page 3 for additional information.

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Ruud AP14236 installation instructions Sequence of Operation…
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AP14236 specifications

Ruud AP14236 is a highly efficient air conditioning unit that stands out in the residential HVAC market for its remarkable performance and innovative technology. This model is specifically engineered to provide optimal cooling and heating solutions, offering homeowners comfort year-round while also emphasizing energy efficiency.

One of the key features of the Ruud AP14236 is its efficiency rating, showcased by its SEER (Seasonal Energy Efficiency Ratio) rating, which provides users with an indication of energy consumption versus cooling output. With ratings often exceeding 14, the unit is designed to reduce energy bills significantly while maintaining a comfortable indoor environment. In addition to SEER, the unit boasts an HSPF (Heating Season Performance Factor) that guarantees excellent performance during colder months.

The Ruud AP14236 utilizes advanced inverter technology that allows for variable speed operation. This technology enables the air conditioner to adjust its cooling output based on the actual temperature in the home, leading to lower energy consumption while ensuring that the desired climate is reached swiftly and efficiently. This feature not only enhances comfort but also prolongs the lifespan of the unit, as it does not require the constant on-off cycling seen in traditional systems.

Equipped with an enhanced filtration system, the Ruud AP14236 significantly improves indoor air quality by capturing dust, allergens, and other particulates. This characteristic is particularly advantageous for those with allergies or respiratory conditions, as it creates a healthier living environment.

Durability is another hallmark of the Ruud AP14236, featuring robust construction materials designed to withstand the rigors of varied weather conditions. The unit's cabinet is often galvanized and treated to resist rust, ensuring longevity and reducing maintenance issues.

Noise reduction is also a primary focus in the design of Ruud AP14236. The unit operates quietly, allowing for comfortable living spaces without the disruptive sounds commonly associated with air conditioning systems. This is achieved through sound-dampening technology and acoustic insulation.

In summary, the Ruud AP14236 is engineered for energy efficiency, versatility, durability, and quiet operation. Homeowners seeking a reliable and efficient air conditioning solution will find that this unit meets their needs while providing year-round comfort and improved air quality.
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