State Water Heaters STC-077 - Manual

State Water Heaters STC-077

State Water Heaters STC-077 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – SUF Service Handbook; TABLE OF CONTENTS
  • Page 3 – INTRODUCTION
  • Page 4 – INSTALLATION; CLEARANCES
  • Page 5 – VENTING; Equivalent Feet of Pipe Intake or Exhaust; WHEN THE UNIT IS TO
  • Page 7 – CONCENTRIC VENT TERMINATION; in. is lengthened or shortened; Vertical Installation
  • Page 8 – VENTING CLEARANCES
  • Page 9 – EXTERIOR SIDEWALL CLEARANCES; DO NOT TERMINATE THE VENTING WHERE NOISE FROM THE EX-
  • Page 10 – AIR REQUIREMENTS; MINIMUM AIR FOR COMBUSTION
  • Page 11 – Direct Communication
  • Page 12 – Horizontal Ducts
  • Page 13 – CONTAMINATED AIR; does not; eliminate the need to remove flammable or corrosives from the; RUST
  • Page 14 – MULTIPLE UNIT — WATER PIPING
  • Page 15 – CONDENSATION; The “Corrosion Resistance of Cast
  • Page 16 – OPERATION; SEQUENCE OF OPERATION
  • Page 17 – CONTROLS; During Call for Heat
  • Page 18 – CIRCUT BOARDS; DISPLAY CIRCUIT BOARD
  • Page 19 – TROUBLESHOOTING; CHECK FOR 120 VAC TO CONTROL BOARD CN1 TERMINAL.; 20 VAC TO CONTROL BOARD; • Insure 120 VAC power supply has correct polarity — check neutral
  • Page 20 – TRANSFORMER; CHECK FOR 120 VAC TO TRANSFORMER FROM PIN 1 AND 2 ON CONTROL; 20 VAC TO TRANSFORMER
  • Page 21 – CHECK FOR 24 VAC AT TRANSFORMER CN4 PLUG ON CONTROL BOARD.; 4 VAC FROM TRANSFORMER
  • Page 22 – ECO CHECK; CHECK FOR 24 VAC BETWEEN PIN 4 ON CONTROL BOARD TERMINAL CN3 AND
  • Page 23 – CHECK FOR 24 VAC BETWEEN PIN 1 ON CN3 PLUG AND GROUND.; 4 VAC FROM ECO
  • Page 24 – TEMPERATURE PROBE; CHECK RESISTANCE OF THERMISTOR IN UPPER AND LOWER TEMPERATURE; TEMPERATURE PROBE RESISTANCE; PROBE PLUG
  • Page 25 – PRESSURE SWITCH CONTINUITY; CHECK FOR CONTINUITY BETWEEN PRESSURE SWITCH TERMINALS WITH; PRESSURE SWITCH CONTINUITY TEST
  • Page 26 – BLOWER; CHECK FOR 120 VAC TO BLOWER FROM CN2 PLUG PIN 1 AND 2.
  • Page 27 – PRESSURE SWITCH PERFORMANCE; CHECK PRESSURE AT SENSING PORTS ON BURNER, BLOWER INLET AND GAS; AMBIENT ROOM AIR PRESSURE; STEP 9A; TAKE AIR AND GAS PRESSURE READINGS.
  • Page 28 – STEP 9B; PRESSURE SWITCH CONTINUITY TEST — OPERATIONAL
  • Page 29 – CHECK FOR 120 VAC TO IGNITOR FROM PIN 1 AND 2 ON CONTROL BOARD
  • Page 30 – IGNITOR RESISTANCE; CHECK RESISTANCE BETWEEN TWO WIRE CONNECTS AT CN5 IGNITOR PLUG; IGNITOR RESISTANCE CHECK
  • Page 31 – GAS VALVE TEST; CHECK FOR 24 VAC TO GAS VALVE DURING TRIAL FOR IGNITION.; 4 VAC TO GAS VALVE
  • Page 32 – GAS PRESSURE CHECK; CHECK AND ADJUST SUPPLY GAS PRESSURE.; SUPPLY GAS PRESSURE TEST; MANIFOLD GAS PRESSURE TEST; Propane
  • Page 33 – COMPONENT INFORMATION; ORIFICE TABLE
  • Page 34 – PRESSURE SWTCHES
  • Page 36 – WIRING DIAGRAMS
  • Page 37 – SERVICE AIDS
  • Page 38 – SUF MUFFLER; minimum; of 8” from top of condensate elbow.
  • Page 39 – QUESTIONS AND ANSWERS; Q. How much electrical power is required for a SUF water heater?; A. Many variables affect the lime build up process including:; Q. What effect will lime build-up have on the SUF water heater?; A. When large gouges or pits appear in the anodes, replace them.; Q. How often should the anodes be inspected?
  • Page 40 – ERROR CODES
  • Page 41 – SERVICE CHECKLIST
  • Page 42 – STATE WATER HEATERS
  • Page 43 – ULTRA FORCE SUF MODELS REPLACEMENT PARTS
  • Page 44 – ULTRA FORCE SUF CONTROLS PARTS LIST
  • Page 46 – DIE; COMMERCIAL; COMMERCIAL; COMMERCIAL
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Summary

Page 2 - SUF Service Handbook; TABLE OF CONTENTS

SUF Service Handbook TABLE OF CONTENTS S T C - 0 7 7 Introduction . . . . . . . . . . . . . . . . . . . 2 Installation Clearances . . . . . . . . . . . . . . . . . . . . . 3Gas Requirements . . . . . . . . . . . . . . . 3Venting . . . . . . . . . . . . . . . . . . . . . 4 – 8Air Requirements . . . ....

Page 3 - INTRODUCTION

S U F S E R V I C E H A N D B O O K I N T R O D U C T I O N Technical Training Department State Water Heaters STC-077 2 Ashland City, Tennessee © 2004 INTRODUCTION This service handbook is designed to aid in servicing and troubleshooting State SUF 150, 199 and 240 water heaters. No duplication or re...

Page 4 - INSTALLATION; CLEARANCES

S U F S E R V I C E H A N D B O O K I N S T A L L A T I O N State Water Heaters Technical Training Department Ashland City, Tennessee © 2004 3 STC-077 INSTALLATION CLEARANCES This portion of the handbook will review often overlooked installation require-ments. The installation manual covers these it...

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