State Industries SUF100199, SUF100150 manual Tools Required, Digital Multimeter

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ULTRAFORCE COMMERCIAL GAS WATER HEATER

SUF 120 thru 400 SERVICE HANDBOOK

TOOLS REQUIRED

ELECTRICAL MULTIMETER CAPABLE OF MEASURING CONTINUITY/ OHMS, AC & DC VOLTS, AMPERES, MICROAMPERES, MILLIVOLTS, and FREQUENCY(Hz) UEi Model DL289 or equivalent

DIGITAL MANOMETER + 60” W. C. in .01” increments

Note: A digital manometer is required for testing pressure switches and can replace a gas pressure gauge, draft gauge or slack tube manometer for checking gas pressure.

UEi model EM200 or equivalent

WATER PRESSURE GAUGE w/ LAZY HAND AND HOSE BIBB CONNECTION

THERMOMETER

1-1/16 INCH SOCKET WITH EXTENSION FOR ANODE REPLACEMENT

SET OF NUMBERED DRILL BITS

DIGITAL MANOMETER

DIGITAL MULTIMETER

WATER PRESSURE

TEST GAUGE W/ LAZY HAND AND HOSE BIBB CONNECTION

State Water Heaters – Technical Training Department 3

Ashland City, Tennessee © 2009

Servicing should only be performed by a Qualified Service Agent

198152-002

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Contents Service Handbook Table of Contents Ultraforce Commercial GAS Water HeaterIntroduction QualificationsTools Required Digital MultimeterGAS Pressure Specifications General InformationAdjustment Procedure GAS Pressure SUF120 and 150 Models High Altitude Installations SUF 120High Altitude Installation GAS OrificeHigh Altitude Adjustment SUF 300,400 SUF 300,400Installation Tips SUF 300 Venting Tables SUF 120 Vent Length Table Equivalent Feet Meters 120 throughVenting Tables SUF 300,400 Vent Length Table Equivalent Feet Meters 300,400Venting ALL Models Single Pipe Power Vent Using Room AIR Venting ALL Models TWO Pipe Direct Vent Using Outside AIR Vent Termination Direct Vent ALL Models Direct Venting ALL Models Control Overview ALL Models Status Description IconAdjusting Tank Temperature Operating SET Point Differential DisplayChanging the Display Units Fault and Warning Conditions Advanced Diagnostic Information Access to the Current Fault or Warning Viewing Information About the Water Heater Control Sequence Typical ALL Models Control Sequence Flow Chart Controls Central Control Board CCB Remove these Screws to release CoverControls GAS Valve SUF SUF 120 thru 400 Service Handbook Controls GAS Valve SUF 199 Important Note High Altitude InstallationSupply gas pressure Controls GAS Valve , Orifice CHART- SUF300,400 Orifice Chart SUF 300,400Controls Pressure Switches ALL Models Blocked Outlet Proving SwitchTop View of Pressure Switches Controls Pressure Switches SUF 300,400 Blocked Inlet Pressure Switch Odel PressureUltraforce Commercial GAS Water Heater Control Timing HOT Surface Igniter / Flame Sensor / Control TimingFlame Sensor Blower Speed Control SUF 199 ModelBlower Motor Wires Black White RED Ground HOT NeutralAI1 LI1 LI2 LI3 LI4Variable Frequency Drive Blower Speed and Pressure Readings Voltage Frequency Speed Instructions VFD ModelSUF 400Wiring Diagram SUF 120 Wiring Diagram SUF Tennessee Waltz Parkway Ashland City, TN