Reliance Water Heaters HE50 76N Series 100 Thermal Expansion, Temperature-Pressure Relief Valve

Page 16

Thermal Expansion

As water is heated, it expands (thermal expansion). In a closed system the volume of water will grow when it is heated. 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 valve due to excessive pressure build up. This condition is not covered under the limited warranty. The Temperature-Pressure Relief Valve is not intended for constant relief of thermal expansion.

A properly sized thermal expansion tank must be installed on all closed systems to control the harmful effects of thermal expansion. Contact a local plumbing service agency to have a thermal expansion tank installed.

NOTE: To protect against untimely corrosion of hot and cold water fittings, it is strongly recommended that di-electric unions or couplings be installed on this water heater when connected to copper pipe.

All gas piping must comply with local codes and ordinances or with the National Fuel Gas Code (ANSI Z223.1/ NFPA-54) or the Natural Gas and Propane Installation Code (CAN/CSA B149.1) whichever applies. Copper and brass tubing and fittings (except tin lined copper tubing) should not be used.

FIGURE 11.

Fit pipe insulation over the incoming cold water line and the hot water line. Make sure that the insulation is against the top cover of the heater. Fit T & P valve insulation over valve. Make sure that the insulation does not interfere with the lever of the T & P valve.

Secure all insulation using tape.

Temperature-Pressure Relief Valve

FIGURE 10.

Figure 10 shows typical attachment of water piping to the water heater. The water heater is equipped with 3/4 inch NPT water connections.

NOTE: If using copper tubing, solder tubing to an adapter before attaching the adapter to the water heater connections. Do not solder the water lines directly to the water heater connections. It will harm the dip tube and damage the tank.

T & P Valve and Pipe Insulation (if supplied)

Remove insulation for T & P valve and pipe connections from carton.

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.

This water heater is provided with a properly rated/sized and certified combination Temperature-Pressure Relief Valve (T&P valve) by the manufacturer. The valve is certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment of materials as meeting the requirements for Relief Valves for Hot Water Supply Systems, ANSI Z21.22 • CSA 4.4, and the code requirements of ASME.

If replaced, the new T&P valve must meet the requirements of local codes, but not less than a combination Temperature-Pressure Relief Valve rated/sized and certified as indicated in the above paragraph. The new valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater (150 psi = 1,035 kPa) and a discharge capacity not less than the water heater Btu/hr or kW input rate as shown on the water heater’s model rating plate.

Note: In addition to the factory installed Temperature-Pressure Relief Valve on the water heater, each remote storage tank that may be installed and piped to a water heating appliance must also have its own properly sized, rated and approved Temperature-Pressure Relief Valve installed. Call the toll free technical support phone number listed on the back cover of this manual for technical assistance in sizing a Temperature-Pressure Relief Valve for remote storage tanks.

For safe operation of the water heater, the Temperature-Pressure 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. Install discharge piping so that any discharge will exit the pipe within 6 inches (15.2 cm) above an adequate floor drain, or external to the building. In cold climates it is recommended that it be terminated at an adequate drain inside the building. Be certain that no contact is made with any live electrical part. The

16

Page 15 Page 17
Image 16
Page 15 Page 17
Contents Power Vented GAS Models W/HOT Surface Ignition Whenever maintenance adjustment or service is requiredPrinted 317775-000Approvals Safe INSTALLATION, USE and ServiceImportant Definitions General Safety Information General Safety Information Table of Contents IntroductionInstallation of Carbon Monoxide Detectors Approved Carbon Monoxide DetectorsSignage ExemptionsReplacement Parts and Deliming Products Typical InstallationElbow Access Door Condensate Hose and Drain PAN Mixing Valves ROUGH-IN-DIMENSIONS Rough-In-DimensionsCapacity and Gas and Electrical Characteristics Recovery capacity based on 90% thermal efficiencyLocating the NEW Water Heater Facts to Consider About the LocationInsulation Blankets Air REQUIREMENTsUnconfined Space Confined SpaceFresh Air Openings For Confined Spaces Outdoor Air Through Two OpeningsOutdoor AIR Through TWO Vertical Ducts Outdoor AIR Through TWO Horizontal DuctsAIR from Other Indoor Spaces Installing the NEW Water Heater Chemical Vapor CorrosionWater Piping Space Heating and Potable Water SystemThermal Expansion Temperature-Pressure Relief ValveValve and Pipe Insulation if supplied Contact qualified installer or service agency High Altitude InstallationGas Piping Filling the Water Heater Sediment TrapsPer square inch 3.5 kPa Vent Pipe Assembly VentingTermination Clearances Sidewall Power Vent Vent Pipe TerminationCondensate Planning the Vent SystemBreathing Hazard Carbon Monoxide Gas Installation of Vent System Blower Assembly InstallationVent Terminal INSTALLATION, Sidewall Power Vent Wiring Schematic Figure Chisel an opening approximately one half inch 1.3 cm largerThan the marked circle Pointed in the correct position, see FigureInstallation of Vent SYSTEM, Sidewall Installation of Vertical Vent SystemVent attenuation assembly Flexible tubing Instruction sheet Vent Attenuation Assembly InstallationVertical VAA Installations Recommended Inch vent Vertical VAA Installations Vent Pipe Preparation Recommended BRUSH* Size for Primer Cement ApplicationsStep B Step EStep F Step GPower Before Servicing Do not try to light the burner by handWhat to do if YOU Smell GAS Do not TRY to Light the Burner by HandTemperature Regulation Temperature Indicators Temperature Adjustment ButtonsDisplay D E FStart UP Conditions For Your InformationOperational Conditions Periodic Maintenance Anode ROD InspectionTemperature-Pressure Relief Valve Test Keep hands clear of drainTo Flush the Water Heater Storage Tank Open the water heater drain valve to flush the storage tankService Leakage CheckpointsTroubleshooting Guidelines Trouble ShootingEnsure the flame sensor is clean use ultra fine steel Turn off power to the water heaterAssembly if damaged or defective Unplug ignitor assembly plug from control. Check resistanceUnplug the ignitor assembly plug from the control. Check Resistance of the black resistor wire between pinsAssembly .2 If the reading taken is less than 100,000 Check vent temperature limit switch if it is determinedTroubleshooting Guidelines Limited Warranty

317775-000, HE50 76N Series 100 specifications

The Reliance Water Heaters HE50 76N Series 100,317775-000 is a remarkable product tailored to meet the increasingly demanding needs of modern households. Known for its reliability and efficiency, this water heater stands out in both functionality and design, making it a preferred choice for many homeowners.

One of the primary features of the HE50 76N series is its impressive 50-gallon capacity, which provides ample hot water for various domestic tasks such as bathing, cooking, and cleaning. This generous size makes it suitable for medium to large families, ensuring that you can enjoy hot water when you need it most without any disruptions.

The heater is equipped with an Energy Factor (EF) rating that reflects its efficiency in converting energy into hot water. Designed for optimal energy savings, the HE50 76N series features advanced insulation that minimizes heat loss, thus reducing energy bills and promoting sustainability. The insulation also contributes to maintaining a consistent water temperature, ensuring comfort and convenience.

One of the standout technologies integrated into this model is the use of a powerful heating element, which rapidly heats the water. This system ensures quick recovery times, allowing for uninterrupted hot water supply even during peak usage. Additionally, the HE50 76N is equipped with a thermostat that enables users to easily adjust the temperature settings according to their preference, enhancing user control and safety.

Reliance has also prioritized durability and longevity in the design of the HE50 76N series. With a corrosion-resistant tank and protective coatings, this water heater is built to withstand the rigors of daily use and resist the elements that typically contribute to wear and tear. The anode rod included in the tank provides extra protection against rust and helps prolong the lifespan of the heater.

Another significant characteristic of the HE50 76N series is its user-friendly interface. With straightforward controls and clear indicators, it makes operation simple for all users. Furthermore, installation is hassle-free, with standard connections that allow for easy integration into existing setups.

In summary, the Reliance Water Heaters HE50 76N Series 100,317775-000 combines efficiency, capacity, technology, and user-friendliness, making it one of the most reliable options on the market. With its emphasis on energy savings and durability, this water heater is designed to support the modern household while providing peace of mind and comfort.
Top Page Image Contents