State Industries SBD71 120, SBD85 500 manual General Questions and Answers

Page 43

SBD TANK TYPE HEATERS

SERVICE HANDBOOK

GENERAL QUESTIONS AND ANSWERS

Q.What is unique about the Canadian – SBC-CGA – models vs. U.S. SBD models?

A. The Canadian models have different dimensions to meet Canadian code requirements.

Q:How much electrical power is required for a SBD water heater?

A:The SBD models draw approximately .7 Amps at 120VAC.

Q:The units require "leg kits" to meet National Sanitation Foundation standards.

Q:When should SBDs be delimed? NOTE: The “Hydrocannon” should eliminate or greatly reduce the lime build up rate from the water heater.

Many variables affect the liming up process including:

water temperature - The amount of lime precipitation during the same period of time will be nearly 2 times greater if water is stored at 140 degrees F than at 120 degrees F. A 180 degree setting will precipitate lime about seven times as fast as a 140 degree F setting. volume of water - The more gallons flowing through the SBD, the more exposure to accumulation.

hardness – The harder the water the higher the possibility of lime build up. 1 to 3.5 grains per gallon is "soft", 3.5 to 7 grains per gallon is "moderate", 7 to 10.5 grains per gallon is "hard" and 10.5 + grains per gallon is "very hard". (An aspirin is about 5 grains. One grain is equal to 17.1 parts per million.)

A:Deliming should be done when a slight rumbling or popping sound is detected when the main burners are on.

Q:What effect will lime build-up have on the SBD water heater?

A:One eighth inch of scale build-up may reduce efficiency as much as 22%; a 1/4 inch build- up, as much as 38%.

A:Less efficient heat transfer means more bottom head expansion/contraction stress and premature leakage.

A:Heavy build-up on the bottom head and bottom portion of the flue pipes leads to more heat transfer at the top of the flues. This can lead to stacking or erratic thermostat operation.

A:The “Hydrocannon” greatly reduces the possibility of lime build-up.

Q:Anode rods provide additional protection against corrosion. When should these be replaced?

A:When large gouges or pits appear in the anodes, replace them. It is recommended that these be inspected every 6 months.

Technical Training Department

42

Ashland City, TN ©2003

Page 42 Page 44
Image 43
Page 42 Page 44
Contents SandBlaster SBD Handbook SBD Tank Type Heaters Service HandbookModel Breakdown SBD 85 500 P E a CGA D Clearances from Combustibles InstallationModel Exterior Clearance Excess AIR AIR for Combustion Cubic Feet of AIR PER 1,000 BTUDirect Communication MAKE-UP AIRHorizontal Ducts Vertical DuctsBackdraft Insufficient MAKE-UP AIRAIR for Combustion Contaminated AIRGAS Pressure Requirements Supply Gas Manifold Pressure Tap Dirt Leg Gas PortSBD GAS Valve Atmospheric, Single, and Multiple Heaters VentingNine Rules for Good Vents Nine Rules for Good Vents Power Vent Kits for Sidewall Venting Sequence of Operation SBD Sequence of OperationSBD Electrical Sequence SBD Electrical Sequence of Operation Test the Transformer Troubleshooting SBD Water HeatersThen Ground 24 VAC FM Transformer High LIMIT, Left Terminal TestDamper Motor Test High Limit Right TerminalCheck the PC Board Inspect the DamperPC Board Motor Test Service Switch Motor LeadThermostat Test Effikal Damper Test for 24VAC Between Black Common and Brown Then Harness ChartNormal Operation Test for 24VAC Between Black Common and BrownTest for 24VAC Between Black and Yellow Test for 24VAC Between Black and OrangeTest Between Black Common and Brown on the Damper Board Troubleshooting the Effikal DamperA1 is CORRECT, Check Service Switch Position Adjust END Switch to CAM Contact Wire Harness Test IID Module Test Pilot Spark Test SBD 120 400 GAS Valve Pilot Valve OHM TestPilot GAS Manifold Pressure TAP Blue White RED Pilot Valve Test SBD 500 onlyMain Burner Test Flame Rectification Flame RectificationPilot is lit Sparking has stopped Main GAS Valve Check Main GAS Valve Coil Check SBD 500 only Main GAS Valve Coil CheckGeneral Service Chart General Questions and Answers Series 110/111 SBD Models 120 Thru 500ASBD Models 120 Thru 500A Series SBD Models 120 Thru 500A Series SBD Models 120 Thru 500A Series SBD Models 120 Thru 500A Series SBD Models 120 Thru 500A Series SBD Models 120 Thru 500A SBD Models 120 Thru 500A Series Component Part Information Name SpecificationsNatural Propane SBD Service ChecklistWater Piping Author Terry Mulder CommentsCommercial
Related manuals
Manual 56 pages 57.8 Kb

SBD85 500, SBD71 120 specifications

State Industries has long been recognized as a leader in the manufacturing of water heaters and other thermal products, and its SBD85 500 and SBD71 120 units are prime examples of their innovative approach to energy efficiency and performance. These models are designed to meet diverse residential and commercial needs, showcasing the company's commitment to quality, reliability, and advanced technology.

The SBD85 500 model is an electric water heater designed to deliver an impressive capacity of 85 gallons. It features a glass-lined tank that provides durability and long-lasting performance. The insulation is a key characteristic, as it minimizes heat loss, thereby enhancing energy efficiency. One of the standout technologies integrated into this unit is the high-efficiency heating elements, which ensure rapid heating of the water while consuming minimal energy.

Furthermore, the SBD85 includes adjustable thermostats that allow users to customize their water temperatures according to specific needs. This feature not only improves user comfort but also contributes to lower energy bills by allowing for more efficient energy use. The model is engineered to operate quietly, making it an ideal choice for residential applications where noise levels can be a concern.

On the other hand, the SBD71 120 offers a more compact solution with a capacity of 71 gallons, making it suitable for smaller spaces while still providing robust performance. This model is equally energy-efficient, benefiting from similar technologies such as high-quality insulation and advanced heating elements. The SBD71 is particularly noted for its compact design, which allows for installation in tight areas without compromising on performance.

Both models are built with user-friendly features, including easy connections for water and electrical supply, and clear indicators for maintenance needs. Safety is also a priority in the design of these units, with built-in temperature relief valves to prevent overheating and pressure buildup.

In conclusion, the State Industries SBD85 500 and SBD71 120 water heaters embody the company's dedication to quality and technological advancement. Whether for a large household or a smaller living space, these models provide efficient, reliable hot water solutions tailored to meet the demands of modern consumers. With their advanced features and exceptional performance, they represent a smart investment in energy efficiency and long-term value.
Top Page Image Contents