State Industries SUF 100 THRU 250, SUF 130 THRU 500, SUF 60 THRU 120 manual Controls GAS Valve SUF

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CONTROLS – GAS VALVE SUF 120

The gas control valve on the SUF 120 has a built-in adjustable pressure regulator. The adjustment screw is accessed by removing the cap screw market regulator in the illustration.

Inlet gas pressure may be read at the inlet pressure tap only if the manual shut off valve (gas cock) is in the “ON” position. Leaving the knob in the “OFF” position will not allow the burner to fire and will generate a fault code on the UIM (Universal Interface Module).

CONTROLS – GAS VALVE SUF 150

The gas control valve on the SUF 150 has a built-in pressure regulator. The regulator may be adjusted by removing the cap screw marked “regulator” in the illustration.

Inlet gas pressure may be read at the inlet pressure tap only if the manual switch is set to the “ON” position.

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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 Introduction QualificationsTools Required GAS Pressure Specifications General InformationInstallation Quick Tips SUF 120 and 150 GAS Pressure Adjustment Procedure GAS Pressure SUF 120 and 150 ModelsPage Installation Quick Tips SUF 199 and 250 GAS Pressure Important NoteInstallation Quick Tips SUF 300, 400, 500 GAS Pressure Adjustment Procedure GAS Pressure SUF 300, 400Installation Quick Tips SUF 300, 400 Installation Venting Category and Materials Ultra Force VentingVent Length Table Equivalent Feet Meters 120 through Venting Tables SUF 120Vent Length Table Equivalent Feet Meters 300, 400 Concentric Venting What about the PH Values of Condensate and Soda POP? Vent CondensationCan I Drain this Condensation to the Floor DRAIN? What does the PH Scale MEAN?Power Vent Direct Vent Vent Termination Direct Vent ALL Models Direct Venting ALL Models PVC ElbowControl Overview Status Icon Description Set PointDisplay Action Adjusting Tank Temperature Operating SET Point DifferentialAction 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 Fault Advanced Diagnostic Information Example of a WarningTo get to the current fault information screen, press Menu Access to the Current Fault or WarningPress the Down button for more information Fault Codes Viewing Information About the Water Heater Control Sequence Typical ALL Models Typical SequenceControl Sequence Flow Chart Controls Central Control Board CCB This is the back of the UIM Controls GAS Valve SUF Controls GAS Valve SUF 199 High Altitude InstallationGAS Orifice Controls GAS Valve SUF 199 Controls GAS VALVE, Orifice Chart SUF 300/400 Orifice Chart SUF 300Controls GAS VALVE, Orifice Chart SUF Orifice Chart SUFBlocked Outlet Proving Switch Controls Pressure Switches ALL ModelsBlower Proving Switch Blocked Inlet Proving SwitchControls Pressure Switches SUF 120 Through Controls Pressure Switches SUF 300, 400 Page Flame Sensor HOT Surface Igniter / Flame Sensor / Control TimingHOT Surface Igniter Control TimingBlower Speed Control SUF 199 Model High Speed Hz Low Speed HzVariable Frequency Drive SUF 400 Variable Frequency Drive Blower Speed and Pressure Readings Voltage Frequency Speed Instructions VFD Model SUFWiring Diagram SUF 120 User Interface ModulWiring Diagram SUF 400 User Interface ModuleTennessee Waltz Parkway Ashland City, TN
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