Page 46

A.O. Smith INTELLI-VENT - Page 46

A.O. Smith INTELLI-VENT

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Table of Contents

Features2
Construction3
Operation4
Pre Start up Check List4
Start up Procedure4
Sleep Mode - Normal Operation4
Temperature Settings5
Intelli-Vent Specifications6
Gas Pressure Requirements6
Intelli-Vent Wiring Connections7
Wiring Harness Connection Diagram8
Sequence of Operation9
Troubleshooting Guide10
Error Code 1 - no Earth Ground10
Error Code 2 - Reversed Polarity11
Error Code 3 - Pressure Switch Circuit Remains Closed11
Error Code 4 - Pressure Switch Circuit Remains Open12
Error Code 5 - Ignitor Failure13
Error Code 6 - Ignition/Flame Failure13
Error Code 7,8,9 - Internal Control Failures14
Error Code 10 - Flame Sensed out of Sequence14
Error Code 11 - High Temperature Cutoff (Eco) Activated15
Error Code 12 - Temperature Adjust Buttons Stuck Closed15
Error Code 13 - Temperature Probe Open of Shorted15
Error Code 14 - Resistor Wire Open or Shorted16
Error Code 15 - Resistor Wire Resistance out of Tolerance16
Technical Bulletin - Ignition and Flame Failure A-022-04 & S-021-04 Combined17
Flame Sensor Alignment17
Burner Check List19
Flue Baffle & Flue Restrictor Check20
Air Pressure Switch Construction22
Air Pressure Switch Operation22
Air Pressure Switches - Different Types23
Normal/Activated States23
Air Pressure Switch Testing24
Air Pressure Switch Circuits25
Air Pressure Switch Circuit - Residential Power Vent/Power Direct Vent25
Vent Termination Restrictor Usage for 40,000 Btu Power Vent Models26
TB-A028-06 - A. O. Smith - FVIR Intelli-Vent Troubleshooting Chart29
Normal Operating Sequence - Pressure Switch Circuit35
Contact States36
Pressure Switch Descriptions37
Tools Required for Testing37
Air Pressure Switch Types41
Air Pressure Switch Circuit: Residential Power-Vent & Power-Direct-Vent Water Heaters42
Air Pressure Switch Circuit: Cyclone Water Heater42

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