State Industries STC-080 manual Tools Required, Miscellaneous Information

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RESIDENTIAL GAS, NON POWER VENTED, WATER HEATER

SERVICE HANDBOOK

Tools Required:

Phillips head screw driver

3/8, 7/16, ¾ inch open end wrenches 3/16 inch Allen wrench

11/16 inch – 6 point – socket – for anode removal set of marked drill bits

electrical multimeter

gas pressure gauge or monometer water pressure gauge thermometer

tubing cutter if pilot tube is to be replaced hose – to drain tank

container – to measure gallons per minute flow

MISCELLANEOUS INFORMATION

Draw efficiency is the quantity of hot water available to the consumer before the outlet water temperature decreases 25 degrees F. A 40 gallon water heater will typically provide 70% (28 gallons) of this “usable” hot water. The burner is allowed to operate during this test. Incoming, cold water mixes the remaining stored water below this 25 degree limitation.

Energy Factor is an indicator of the combined thermal efficiency and standby efficiency of a water heater. The higher the energy factor, the more efficient the water heater will be.

Recovery rate is the amount of water that is heated to a set temperature, per hour. An example might be that a water heater has a recovery rate of 30 gallons of water per hour at 80 degree F. (Fahrenheit) temperature rise.

“R” Value is a measure of the resistance of a substance to heat flow.

Thermal efficiency is approximately the amount of generated BTU (British Thermal Units), which enters the water. A percentage of the total BTU passes out through the vent piping.

Temperature rise is the increase in the temperature from its coldest “inlet” water temperature to the desired hot (outlet) setting. Typically this is assumed to be 40 degrees entering water; 120 degrees desired stored water or 80 degrees “temperature rise.”

Standby efficiency – the water heater’s ability to contain heat in the tank. A minimum of tank water heat loss per hour is desired.

Sample: temperature change = Btu/h loss/ square foot of tank surface “R” value

Water cannot (for all practical purposes) be compressed.

Water expands when it is heated.

State Water Heater

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Technical Training Department

© 2004

 

Ashland city, TN

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Contents Standard Residential GAS Water Heaters NON Power Vented ModelsResidential GAS Service Handbook Introduction Table of ContentsMiscellaneous Information Tools RequiredTo convert FormulasConstruction Installation of Residential GAS Water Heater Residental GAS Water Heater Service Residential Gas Normal OperationResidential Gas Degree Burns on Adult Skin Setting Approximate Temperature FBTU Service000 FuelTest If … … thenElectrical Testing Thermocouple output test Procedures/ConditionsSooting causes If … … then Condensation Safety drop out testProcedures If… … thenCondensation is a mild acid it will corrode steel Flammable Vapor Ignition Resistant Fvir Design Exhaust Venting NotesLDO Screen LINT, DUST, OIL Screens Possible Service issues associated with a blocked screenFlame Arrestor Possible service issues associated with the flame arrestor Combustion Chamber Temperature SensorONE Piece Pilot Burner Assembly Sealed Combustion Chamber To replace a pilot assemblyFive point inner door seal inspection Important Service Reminder Other featuresPiezo Igniter WHY Water Heater Tanks Leak What Prevention Water Conditions What WHY PreventionGeneral EffectsFIX Cause SymptomsIf tank is new with no lime build-up to any degree Aluminum HydroxideTreatment Discolored WaterSmelly Water Procedure Chlorination ProcedureTest Not Enough HOT Water GASThermal Expansion FIX Symptoms General FIX Leaking Temperature and Pressure Relief Valve

STC-080 specifications

The State Industries STC-080 is a high-efficiency water heater designed to meet the demands of residential and light commercial applications. With its strategic engineering and innovative technology, it offers a reliable solution for those seeking comfort, efficiency, and sustainability in water heating.

One of the main features of the STC-080 is its exceptional efficiency rating. It operates with an impressive Energy Factor (EF) that not only reduces energy consumption but also translates into lower utility bills for users. The unit utilizes a streamlined heat exchanger design, optimizing heat transfer and minimizing energy loss. This design ensures that users can enjoy hot water on demand without the worry of excessive energy expenditure.

The STC-080 is equipped with advanced heating technologies, including a dual-flame burner system. This system ensures rapid heating while providing consistent water temperature, which is essential for residential applications where demand can vary throughout the day. The integration of advanced controls also allows for precise temperature adjustments, giving users full control over their hot water supply.

Durability and reliability are key characteristics of the STC-080. Constructed from high-quality materials, it features a heavy-duty steel tank with a glass-lined interior that provides excellent corrosion resistance. This not only enhances the product's longevity but also ensures consistent performance even in challenging water conditions. Additionally, the unit includes an anode rod that further protects against corrosion, extending service life and reducing maintenance needs.

The STC-080 is designed for easy installation, with flexibility that accommodates various plumbing setups. Its compact design allows for placement in tighter spaces, making it an ideal choice for homes where space is at a premium.

Safety is another priority with the STC-080. It includes multiple safety features such as a temperature and pressure relief valve, ensuring safe operation. The unit also complies with stringent industry standards, providing peace of mind to homeowners and businesses alike.

In summary, the State Industries STC-080 is a standout water heating solution that combines efficiency, reliability, and advanced technology. With its robust construction and user-friendly features, it caters to the evolving needs of both residential and light commercial users, making it an excellent investment for those looking to enhance their water heating systems while being conscious of energy usage.