Whirlpool 318686-000 Temperature and Pressure Relief Valve, Closed System/Thermal Expansion

Page 6

Please note the following:

DO NOT install this water heater with iron piping. The system should be installed only with piping that is suitable for potable (drinkable) water such as copper, CPVC, or polyethylene (PEX).

DO NOT use PVC water piping.

DO NOT use any pumps, valves, or fittings that are not compatible with potable water.

DO NOT use valves that may cause excessive restriction to water flow. Use full-flow ball or gate valves only.

DO NOT use tin-lead solder in potable water lines. Use 95/5 tin antimony or other equivalent material.

DO NOT tamper with the energy smart module, electronic thermostat, temperature sensors, heat- ing elements, electrical connections, or temperature and pressure relief valve. Tampering voids all war- ranties. Only qualified person should service these components.

DO NOT use with piping that has been treated with chromate’s, boiler seal, or other chemicals.

Temperature and Pressure

Relief Valve

Explosion Hazard

• Temperature-pressure relief valve must comply with ANSI Z21.22-CSA 4.4 and ASME code.

• Properly sized temperature- pressure relief valve must be installed in opening provided.

• Can result in overheating and excessive tank pressure.

• Can cause serious injury or death.

DO NOT add any chemicals to the system piping which will contaminate the potable water supply.

Closed System/Thermal Expansion

Typically, a closed system includes a pressure reducing valve (PRV) on the cold water inlet (supply line). As water is heated, it expands (thermal expansion). In a closed sys- tem, the volume of water will grow. As the volume of water grows, there will be a corresponding increase in water pressure due to thermal expansion. Thermal expansion can cause premature tank failure (leakage). This type of failure is not covered under the limited warranty. Thermal expansion can also cause intermittent temperature- pressure relief valve operation: water discharged from the valve due to excessive pressure build up. The tempera- ture-pressure relief valve is not intended for the constant relief of thermal expansion. This condition is not covered

Figure 5

Temperature and Pressure

Relief Valve Installation

Drain Pan

Drain

Optional location some models only

Temperature and

Pressure Relief Valve

Discharge Line 3/4 inch min.

Do not cap or plug.

6 inch maximum

under the limited warranty.

A properly-sized thermal expansion tank should be in- stalled on all closed systems to control the harmful effects of thermal expansion. Contact a plumbing service agency or your retail supplier regarding the installation of a ther- mal expansion tank.

Expansion Tank Sizing Chart

 

Inlet

 

Water Heater Capacity (Gallons)

 

Water

 

 

 

 

 

 

Expansion

Pressure

 

30

40

50

66

82

40psi

2

2

2

5

5

Tank

50psi

2

2

2

5

5

Capacity

60psi

2

2

5

5

5

Needed

70psi

2

2

5

5

5

 

80psi

2

5

5

5

5

A thermal expansion tank can help prevent damage to the water heater and other appliances (i.e.: washing machine, ice maker, dishwasher, etc.).

IMPORTANT: Do not plug or remove the temperature and pressure relief valve (T&P valve).

For protection against excessive pressures and temperatures, a temperature and pressure relief valve must be installed in the opening marked “T&P RELIEF VALVE” (See Figure 5). This valve must be design certi- fied by a nationally recognized testing laboratory that maintains periodic inspection of the production of listed equipment or materials as meeting the requirements for Relief Valves for Hot Water Supply Systems, ANSI Z21.22. The function of the temperature and pressure relief valve is to discharge water in large quantities in the event of excessive temperature or pressure develop- ing in the water heater. The valve’s relief pressure must not exceed the working pressure of the water heater as stated on the rating plate.

IMPORTANT: Only a new temperature and pressure relief valve should be used with your water heater. Do not use an old or existing valve as it may be damaged or not adequate for the working pressure of the new water heater. Do not place any valve between the relief valve and the tank.

6

Page 5 Page 7
Image 6
Page 5 Page 7
Contents Instructions Water Heater Safety Important Safety InstructionsYour safety and the safety or others are very important Consumer Responsibilities Installing Your Water HeaterConsumer Information Unpacking the Water HeaterLocation Requirements Site locationPiping Installation Water System PipingTemperature and Pressure Relief Valve Closed System/Thermal ExpansionExplosion Hazard Electrical Requirements Temperature & Pressure Relief ValveSolar Installation Discharge LineRed Water System Piping Installation ChecklistWater Heater Location Electrical ConnectionsOperating Your Water Heater Water Temperature RegulationSafety Shut-Off Water Heater Start-UpAdjusting the Energy Smart Module/Operational Modes Water Temperature AdjustmentOperating Mode Descriptions Diagnostic LED Light Electronic ThermostatOverriding The Energy Smart Module ESM Where Available Smart Grid TechnologySmart Grid Control Water Heater Sounds Operational ConditionsAnode Rod/Water Odor StackingDraining and Flushing Maintenance of Your Water HeaterTemperature and Pressure Relief Valve Replacing the Anode RodHeating Element Replacement E11 Diagnostic Code Chart Energy Smart Module ESME10 E12E51 with an alert Icon flashing Diagnostic Code Chart Electronic Thermostat ET 10, 11 or 12 Flashes Troubleshooting Chart Problem Possible Causes Corrective ActionRepair Parts Illustration Repair PartsRepair Parts List Thermostat Wiring Diagram Branch Circuit Sizing Guide

318686-000 specifications

The Whirlpool 318686-000 is a highly regarded appliance part that plays an essential role in modern kitchen functionality. Designed with the user in mind, it boasts several features and technologies that enhance its performance and reliability.

One of the primary characteristics of the Whirlpool 318686-000 is its compatibility with a wide range of Whirlpool ovens and ranges, making it a versatile choice for many households. This part is commonly known as the surface element, which provides the necessary heat for cooking a variety of dishes. Its design ensures even heat distribution, which is vital for achieving perfectly cooked meals every time.

The Whirlpool 318686-000 is engineered with durability in mind. Constructed from high-quality materials, this part is built to withstand the daily stresses of cooking while maintaining its performance. This longevity translates into reduced replacement costs and increased satisfaction for users, making it an economical choice for homeowners.

In terms of safety, the Whirlpool 318686-000 features advanced technology to minimize risks associated with cooking. It typically includes integrated thermal protection, which helps prevent overheating. This feature not only prolongs the lifespan of the component but also ensures a safer cooking environment for users.

Installation of the Whirlpool 318686-000 is designed to be user-friendly. Homeowners can replace this part without needing specialized tools or professional assistance, allowing for convenient maintenance. This ease of installation is especially appealing for those who prefer a DIY approach to home repairs.

Efficiency is another hallmark of the Whirlpool 318686-000. The design optimizes energy consumption, allowing users to cook efficiently while saving on utility costs. The element heats up quickly, reducing wait times and enhancing overall cooking experiences.

Whirlpool is a brand synonymous with innovation, and the 318686-000 reflects this commitment to excellence. The part combines modern technology with practical design, ensuring it meets the needs of contemporary cooking. With its blend of durability, safety, efficiency, and ease of use, the Whirlpool 318686-000 is an essential addition to any kitchen, providing reliable performance that cooks can depend on for years to come. Whether replacing a worn-out part or upgrading to enhance cooking capabilities, this surface element is a top choice for Whirlpool appliance users.
Top Page Image Contents