Access to the Current Fault or Warning | State Industries SUF100150

ULTRAFORCE COMMERCIAL GAS WATER HEATER

SUF 120 thru 400 SERVICE HANDBOOK

ACCESS TO THE CURRENT FAULT OR WARNING

When a fault or warning has been detected by the control it will automatically be displayed on the screen and the back light will blink. If you choose to leave the current fault or warning by pressing the Back key, you can always return to the fault through the display menu through the menu.

ACTION:

Press the DOWN button for more information.

DISPLAY:

ACTION:

To get to the current fault information screen, press

Menu.

DISPLAY:

State Water Heaters – Technical Training Department 18

Ashland City, Tennessee © 2009

Servicing should only be performed by a Qualified Service Agent

198152-002

Image 19

State Industries SUF100150, SUF100199 manual Access to the Current Fault or Warning

Contents

Service Handbook Ultraforce Commercial GAS Water Heater Table of Contents Qualifications Introduction Digital Multimeter Tools Required General Information GAS Pressure Specifications High Altitude Installations SUF 120 Adjustment Procedure GAS Pressure SUF120 and 150 Models GAS Orifice High Altitude Installation SUF 300,400 High Altitude Adjustment SUF 300,400 Installation Tips SUF 300 Vent Length Table Equivalent Feet Meters 300,400 Venting Tables SUF 120Vent Length Table Equivalent Feet Meters 120 through Venting Tables SUF 300,400 Venting 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 Status Description Icon Control Overview ALL Models Display Adjusting Tank Temperature Operating SET Point Differential Changing 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 Remove these Screws to release Cover Controls Central Control Board CCB Controls GAS Valve SUF Important Note High Altitude Installation SUF 120 thru 400 Service Handbook Controls GAS Valve SUF 199 Supply gas pressure Orifice Chart SUF 300,400 Controls GAS Valve , Orifice CHART- SUF300,400 Blocked Outlet Proving Switch Controls Pressure Switches ALL Models Top View of Pressure Switches Blocked Inlet Pressure Switch Odel Pressure Controls Pressure Switches SUF 300,400 Ultraforce Commercial GAS Water Heater Control Timing HOT Surface Igniter / Flame Sensor / Control TimingFlame Sensor Model Blower Speed Control SUF 199 LI1 LI2 LI3 LI4 Blower Motor Wires Black White REDGround HOT Neutral AI1 400 Variable Frequency Drive Blower Speed and Pressure ReadingsVoltage Frequency Speed Instructions VFD Model SUF Wiring Diagram SUF 120 Wiring Diagram SUF Tennessee Waltz Parkway Ashland City, TN