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Warning about fire or explosion due to incorrect manual following.
Steps to take if gas is detected, including not using electrical devices.
Emphasizes that installation and service must be done by qualified professionals.
Instructions for overheating or gas supply failure, advising against disconnecting electrical supply.
Do not use the boiler if any part has been submerged in water.
Lists the main sections and their corresponding page numbers.
Critical safety warnings and instructions before operating the appliance.
Visual guide to operating gas control knobs for different brands.
Step-by-step guide on how to start and operate the boiler.
Procedure for safely shutting off the gas supply to the appliance.
Critical waiting period for the gas shut-off valve before lighting.
Warning about using gas boilers in areas with flammable liquids or vapors.
Guidance on setting water temperature to prevent scalding, with a risk table.
Factors to consider when installing the boiler in various locations.
Explanation of the blocked vent shut-off system and required actions.
Guide to observing burner flame characteristics for optimal performance.
Strict warning against storing flammable materials near the appliance.
Information on how chemical vapors can cause boiler corrosion.
Instructions for maintaining the circulation pump.
Description of the EMC5000 electronic control system components.
Diagram showing the component layout of the Central Control Board.
Diagram showing the component layout of the Flame Control Board.
Diagram showing the component layout of the Power Distribution Board.
Overview of the four operational modes of the EMC5000 controller.
Describes the various input signals received by the CCB and FCB.
Details the output signals generated by the CCB and FCB.
Explains the function of indicator lamps and fuses on the control boards.
Configuration settings for the CCB's ten-position dipswitch.
Configuration settings for the CCB's three-position dipswitch.
Explanation of the eight-position dipswitch functions on the FCB.
Illustrates a 2-stage system with specific setpoints and differentials.
Instructions on how to use the UIM for system control and monitoring.
Describes the functions of the five touch switches on the UIM.
Explains the meaning of the system status LED indicators on the UIM.
Details the system status information displayed on the UIM.
Explains how to navigate and the types of screens available on the UIM.
Displays the software states of the CCB and FCB micros.
Provides detailed descriptions of the CCB's control states.
Description of the FCB's idle control state.
Description of the FCB's pre-purge control state.
Description of the FCB's heat igniter control state.
Description of the FCB's flame check control state.
Procedure for adjusting the base temperature setpoint for the control algorithm.
Procedure for adjusting the automatically resettable high limit setpoint.
Procedure for adjusting the high limit differential setpoint.
Procedure for adjusting independent operating differential setpoints for each stage.
Details wiring connections for the external junction box.
Illustrates wiring connections to the Central Control Board.
Shows wiring connections for the Power Distribution Board.
Specific wiring details for the igniter circuit.
Wiring connections for the User Interface Board.
Wiring connections for the Flame Control Board.
Explains functions of DIP switches for boiler type and features.
Describes how to access the menu screen using the Menu key.
Explains the functions of the Select key for navigation and selection.
Details how to use the Up and Down keys for navigation and value adjustment.
Describes how to use the Help key for accessing information.
Lists fault messages, their descriptions, Red LED status, and lockout type.
Error when communications with UIM are interrupted.
Error indicating communication failure with FCB stages.
Error indicating insufficient incoming AC line voltage.
Error indicating a blocked flue condition.
Error when outlet temperature exceeds the high limit setpoint.
Error indicating the ECO contacts in the outlet probe are open.
Error indicating a low water level condition.
How to check input switch functionality using the UIM Status screen.
Procedure for testing system operation without gas supply.
Method for verifying flame sensing circuit operation using a diode.
Procedure for checking out the CCB individually using dipswitch settings.
Details the warranty coverage for the heat exchanger, including duration.
Lists the conditions and exceptions that apply to the warranty.
Outlines the owner's responsibility for costs related to service and repair.
Steps to follow when making a warranty claim.
Warning about fire or explosion due to incorrect manual following.
Steps to take if gas is detected, including not using electrical devices.
Emphasizes that installation and service must be done by qualified professionals.
Instructions for overheating or gas supply failure, advising against disconnecting electrical supply.
Do not use the boiler if any part has been submerged in water.
Lists the main sections and their corresponding page numbers.
Critical safety warnings and instructions before operating the appliance.
Visual guide to operating gas control knobs for different brands.
Step-by-step guide on how to start and operate the boiler.
Procedure for safely shutting off the gas supply to the appliance.
Critical waiting period for the gas shut-off valve before lighting.
Warning about using gas boilers in areas with flammable liquids or vapors.
Guidance on setting water temperature to prevent scalding, with a risk table.
Factors to consider when installing the boiler in various locations.
Explanation of the blocked vent shut-off system and required actions.
Guide to observing burner flame characteristics for optimal performance.
Strict warning against storing flammable materials near the appliance.
Information on how chemical vapors can cause boiler corrosion.
Instructions for maintaining the circulation pump.
Description of the EMC5000 electronic control system components.
Diagram showing the component layout of the Central Control Board.
Diagram showing the component layout of the Flame Control Board.
Diagram showing the component layout of the Power Distribution Board.
Overview of the four operational modes of the EMC5000 controller.
Describes the various input signals received by the CCB and FCB.
Details the output signals generated by the CCB and FCB.
Explains the function of indicator lamps and fuses on the control boards.
Configuration settings for the CCB's ten-position dipswitch.
Configuration settings for the CCB's three-position dipswitch.
Explanation of the eight-position dipswitch functions on the FCB.
Illustrates a 2-stage system with specific setpoints and differentials.
Instructions on how to use the UIM for system control and monitoring.
Describes the functions of the five touch switches on the UIM.
Explains the meaning of the system status LED indicators on the UIM.
Details the system status information displayed on the UIM.
Explains how to navigate and the types of screens available on the UIM.
Displays the software states of the CCB and FCB micros.
Provides detailed descriptions of the CCB's control states.
Description of the FCB's idle control state.
Description of the FCB's pre-purge control state.
Description of the FCB's heat igniter control state.
Description of the FCB's flame check control state.
Procedure for adjusting the base temperature setpoint for the control algorithm.
Procedure for adjusting the automatically resettable high limit setpoint.
Procedure for adjusting the high limit differential setpoint.
Procedure for adjusting independent operating differential setpoints for each stage.
Details wiring connections for the external junction box.
Illustrates wiring connections to the Central Control Board.
Shows wiring connections for the Power Distribution Board.
Specific wiring details for the igniter circuit.
Wiring connections for the User Interface Board.
Wiring connections for the Flame Control Board.
Explains functions of DIP switches for boiler type and features.
Describes how to access the menu screen using the Menu key.
Explains the functions of the Select key for navigation and selection.
Details how to use the Up and Down keys for navigation and value adjustment.
Describes how to use the Help key for accessing information.
Lists fault messages, their descriptions, Red LED status, and lockout type.
Error when communications with UIM are interrupted.
Error indicating communication failure with FCB stages.
Error indicating insufficient incoming AC line voltage.
Error indicating a blocked flue condition.
Error when outlet temperature exceeds the high limit setpoint.
Error indicating the ECO contacts in the outlet probe are open.
Error indicating a low water level condition.
How to check input switch functionality using the UIM Status screen.
Procedure for testing system operation without gas supply.
Method for verifying flame sensing circuit operation using a diode.
Procedure for checking out the CCB individually using dipswitch settings.
Details the warranty coverage for the heat exchanger, including duration.
Lists the conditions and exceptions that apply to the warranty.
Outlines the owner's responsibility for costs related to service and repair.
Steps to follow when making a warranty claim.
General| Brand | A.O. Smith |
|---|---|
| Category | Water Heater |
| Capacity | 50 Gallons |
| Energy Source | Electric |
| Voltage | 240V |
