State Industries SUF 130 THRU 500, SUF 100 THRU 250 manual Variable Frequency Drive SUF 400

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VARIABLE FREQUENCY DRIVE – SUF 400 AND 500

The Ultra Force SUF 400 and 500 models have a variable frequency drive (VFD) that controls the rpm of the blower motor. The VFD receives a signal from the central control board that instructs the VFD to transmit the proper frequency to the blower to produce the proper blower speed and proper input.

Three conditions must be met for the frequency drive to start the blower:

1.120VAC must be supplied to the VFD 120VAC input.

2.The ignition control board closes an enable circuit – terminals LI1 and +15V

3.The ignition control board sends a 1-10VDC instruction – terminals 0V and AI1. See table on the next page for voltage and frequency information.

Servicing should only be performed by a Qualified Service Agent

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Contents Commercial GAS High Efficiency Water Heaters Page Table of Contents Qualifications IntroductionTools Required General Information GAS Pressure SpecificationsAdjustment Procedure GAS Pressure SUF 120 and 150 Models Installation Quick Tips SUF 120 and 150 GAS PressurePage Important Note Installation Quick Tips SUF 199 and 250 GAS PressureAdjustment Procedure GAS Pressure SUF 300, 400 Installation Quick Tips SUF 300, 400, 500 GAS PressureInstallation Quick Tips SUF 300, 400 Ultra Force Venting Installation Venting Category and MaterialsVenting Tables SUF 120 Vent Length Table Equivalent Feet Meters 120 throughVent Length Table Equivalent Feet Meters 300, 400 Concentric Venting Can I Drain this Condensation to the Floor DRAIN? Vent CondensationWhat about the PH Values of Condensate and Soda POP? What does the PH Scale MEAN?Power Vent Direct Vent Vent Termination Direct Vent ALL Models PVC Elbow Direct Venting ALL ModelsControl Overview Set Point Status Icon DescriptionAction Adjusting Tank Temperature Operating SET Point DifferentialDisplay Action DisplayPress Update to accept the change or Cancel to reset it Changing the Display Units Press Update to accept the change or Cancel to reject it Example of a Warning Example of a Fault Advanced Diagnostic InformationAccess to the Current Fault or Warning To get to the current fault information screen, press MenuPress the Down button for more information Fault Codes Viewing Information About the Water Heater Typical Sequence Control Sequence Typical ALL ModelsControl Sequence Flow Chart Controls Central Control Board CCB This is the back of the UIM Controls GAS Valve SUF High Altitude Installation Controls GAS Valve SUF 199GAS Orifice Controls GAS Valve SUF 199 Orifice Chart SUF 300 Controls GAS VALVE, Orifice Chart SUF 300/400Orifice Chart SUF Controls GAS VALVE, Orifice Chart SUFBlower Proving Switch Controls Pressure Switches ALL ModelsBlocked Outlet Proving Switch Blocked Inlet Proving SwitchControls Pressure Switches SUF 120 Through Controls Pressure Switches SUF 300, 400 Page HOT Surface Igniter HOT Surface Igniter / Flame Sensor / Control TimingFlame Sensor Control TimingModel High Speed Hz Low Speed Hz Blower Speed Control SUF 199Variable Frequency Drive SUF 400 Voltage Frequency Speed Instructions VFD Model SUF Variable Frequency Drive Blower Speed and Pressure ReadingsUser Interface Modul Wiring Diagram SUF 120User Interface Module Wiring Diagram SUF 400Tennessee Waltz Parkway Ashland City, TN

SUF 100 THRU 250, SUF 130 THRU 500, SUF 60 THRU 120 specifications

State Industries has long been a leader in the manufacturing of high-quality water heaters, particularly known for its SUF series. The SUF 60 thru 120, SUF 130 thru 500, and SUF 100 thru 250 models are excellent examples of State Industries’ commitment to efficiency, performance, and innovation. These units are designed to meet a range of residential and commercial water heating needs, showcasing advanced engineering and durability.

The SUF series is primarily built for heavy-duty applications, offering various capacities to accommodate different demands. The SUF 60 thru 120 models are ideal for residential settings, providing dependable hot water solutions with capacity options ranging from 60 to 120 gallons. These units utilize high-quality insulation to minimize heat loss, resulting in improved efficiency and cost-effectiveness.

Moving to the SUF 130 thru 500 series, these models are tailored for larger commercial applications. With capacities extending up to 500 gallons, they are perfect for industries where high volume and consistent hot water supply are essential. The SUF 130 thru 500 models feature robust heating elements and advanced thermostats for precise temperature control, ensuring the delivery of hot water on demand.

The SUF 100 thru 250 units straddle the line between residential and light commercial applications. With capacities from 100 to 250 gallons, these water heaters are versatile and adaptable to various settings. They integrate cutting-edge technology that enhances safety, such as multi-level safety controls and automatic shut-off systems, ensuring user protection while maximizing performance.

Each SUF model is designed with longevity in mind. The tanks are constructed from high-grade materials that resist corrosion and wear, featuring factory-installed anode rods to enhance the lifespan even further. The energy-efficient design of these water heaters meets or exceeds current energy conservation standards, providing an eco-friendly solution without compromising on output.

In summary, State Industries’ SUF 60 thru 120, SUF 130 thru 500, and SUF 100 thru 250 models exemplify the brand’s dedication to quality and innovation. With various capacities, advanced technologies, and a focus on efficiency and durability, these water heaters cater to diverse needs, ensuring reliable hot water supply for years to come.