If replaced, the valve must meet the requirements of local codes, but not less than a combination temperature and pressure relief valve certified as indicated in the above paragraph.

The valve must be marked with a maximum set pressure not to exceed the marked maximum working pressure of the water heater (150 psi = 1,035 kPa) and a discharge capacity not less than the water heater input rate as shown on the model rating plate.

For safe operation of the water heater, the relief valve must not be removed from its designated opening nor plugged.

The temperature-pressure relief valve must be installed directly into the fitting of the water heater designed for the relief valve. Position the valve downward and provide tubing so that any discharge will exit only within 6 inches (153 mm) above, or at any distance below the structural floor. Be certain that no contact is made with any live electrical part. The discharge opening must not be blocked or reduced in size under any circumstances. Excessive length, over 30 feet (9.14 m), or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve, see Figure 17.

No valve or other obstruction is to be placed between the relief valve and the tank. Do not connect tubing directly to discharge drain unless a 6 inch air gap is provided. To prevent bodily injury, hazard to life, or property damage, the relief valve must be allowed to discharge water in quantities should circumstances demand. If the discharge pipe is not connected to a drain or other suitable means, the water flow may cause property damage.

FIGURE 17.

The Discharge Pipe:

•Shall not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions.

•Shall not be plugged or blocked.

•Shall be of material listed for hot water distribution.

•Shall be installed so as to allow complete drainage of both the temperature-pressure relief valve, and the discharge pipe.

•Shall terminate at an adequate drain.

•Shall not have any valve between the relief valve and tank.

The temperature-pressure relief valve must be manually operated at least once a year. Caution should be taken to ensure that (1) no one is in front of or around the outlet of the temperature-pressure relief valve discharge line, and (2) the water manually discharged will not cause any bodily injury or property damage because the water may be extremely hot.

If after manually operating the valve, it fails to completely reset and continues to release water, immediately close the cold water inlet to the water heater, follow the draining instructions, and replace the temperature-pressure relief valve with a new one.

Filling the Water Heater

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Maytag HXN4975S manual Filling the Water Heater
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HXN4975S specifications

The Maytag HXN4975S is a state-of-the-art refrigerator that perfectly balances innovation, style, and functionality. Designed for modern kitchens, this model stands out with its stainless steel finish, which not only adds a sleek aesthetic but also ensures durability and resistance to fingerprints and smudges.

One of the standout features of the HXN4975S is its generous storage capacity. With multiple shelves and adjustable compartments, it provides ample space for groceries of all sizes. The fridge section includes spill-proof glass shelves that are easy to clean and prevent spills from cascading down to lower shelves, maintaining cleanliness effortlessly. Enhanced storage options like gallon door bins and humidity-controlled crisper drawers make it easy to store and organize a variety of items.

The HXN4975S is equipped with advanced cooling technologies. Its dual cooling system ensures optimal temperature and humidity levels, keeping your food fresh longer. This technology separates the airflow between the refrigerator and freezer, preventing the transfer of odors and maintaining the quality of stored food. Additionally, the refrigerator incorporates a powerful compressor that efficiently maintains the desired temperatures while reducing energy consumption.

Another key feature of the Maytag HXN4975S is its smart connectivity. With built-in Wi-Fi, users can control their refrigerator remotely through a compatible smartphone app. This feature allows for adjustments to be made on-the-go, enabling users to monitor temperatures, receive alerts, and even diagnose issues without the need for a technician.

Energy efficiency is also a priority for the HXN4975S, as it is ENERGY STAR rated. This ensures that the refrigerator not only saves on energy bills but also contributes to a greener environment. The LED lighting inside the unit provides bright illumination while consuming minimal energy, allowing for excellent visibility regardless of the time of day.

The Maytag HXN4975S also focuses on user-friendly features, such as its intuitive temperature control and ice and water dispenser located conveniently on the front door. The sleek design incorporates a filtered water system, providing clean and safe drinking water instantly.

Overall, the Maytag HXN4975S embodies a commitment to quality and efficiency, catering to the needs of busy families while enhancing the kitchen's functionality and style. This refrigerator truly stands out as a reliable appliance designed with both performance and user experience in mind.
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