American Water Heater (A)BCG385T500-8N, (A)BCG38T500-8P manual Electrical Sequence

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OPERATION AND SERVICE

ELECTRICAL SEQUENCE

1.Switch Power on to unit.

2.Thermostat calls for heat.

3.Ignition Control Board performs diagnostic check on system components.

4.On completion of diagnostics check, the Ignition Control Board energizes the Blower (Draft Inducer).

5.The Blower (Draft Inducer) begins drawing air through appliance, closing the Blower Prover Switch.

6.On completion of Blower Prover Switch engagement, the Ignition Control Board begins the ignition cycle.

7.The Ignition Control Board provides power to the Silicon Nitride Igniter.

8.The Silicon Nitride Igniter heats up for approximately 17 to 20 seconds.

9.At the end of Silicon Nitride Igniter’s warm-up, the Ignition Control Board opens the Gas Valve.

10.From the time the Gas Valve opens, the Ignition Control Board waits 3 seconds and then shuts off power to the Silicon Nitride Igniter.

11.From the time the Silicon Nitride Igniter’s power is shut off, the Ignition Control Board waits 3 more seconds to monitor the Flame Sensor.

12.If the Ignition Control Board does not detect flame at the burners, it will de-energize the Gas Valve and run the Blower for approximately 20 seconds to purge the combustion chamber. The Ignition Control Board then restarts at Step 7 for up to 2 more trials

for ignition. After the third failed trial for ignition, the Ignition Control Board locks out for one hour. At the end of this lock out period, the Ignition Control Board will restart at Step 3 for three more trials. NOTE: The one hour lock out period can be reset by cycling power to the water heater off and on again.

13.If the Ignition Control Board detects a strong flame from the Flame Sensor, it will remain in the heating mode until the Thermostat is satisfied.

14.When the Thermostat is satisfied, the Ignition Control Board will de-energize the Gas Valve and run the Draft Inducer for approximately 20 seconds to purge the combustion chamber. The Ignition Control Board will then go into standby mode.

Servicing should only be performed by a Qualified Service Agent

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Contents Models ABCG385T500-8N Commercial GAS Water HeatersCommercial GAS Water Heater Table of Contents Service Reminder Service WarningIntroduction QualificationsTools Required RequirementsTools Optional Water Piping Installation ConsiderationsGAS Pressure Requirements Closed Water SystemsAir Supply AIR RequirementsInstallation Considerations Make-up Air Direct Communication with Outdoors Contaminated Air Clearances Water HeaterMinimum Clearances to Combustible Surfaces Clearances ExteriorVenting Sequence of Operation Operation and ServiceElectrical Sequence 1a 1 1b Wiring DiagramYES Operating Sequence Flow ChartMeasuring Gas Pressures GAS Control ValveMain Valve Solenoid Connections Manifold Pressure AdjustmentHOT Surface Igniter HSI GAS Control VALVE/BURNER Area ViewBlower Prover Switch Table Blower Prover Switch SettingsThermostat and Ignition Control Board View White Rodgers Ignition Control Board White Rodgers Integrated Control ThermostatPRE-SERVICE Checklist Ignition Control Board Error Codes TroubleshootingSystem has locked out after 3 trials for ignition Reversed polarity in power supply Internal control board failure Igniter not sensed and/or water heater not groundedLED Indication Action Status Integrated Heater Control Display LightsConditions Test 1 120 VAC to Heater CheckThen Test 2 Polarity Check Test 3 Continuity Check of High Limit ECO Ohms Test 4 Upper Temperature Probe Continuity CheckTest 5 Calling for Heat no Blower Operation Test 6 Blower ON, no Ignition E4 Plug Test 8 Igniter HEATS, no Main Burner Test 9 Igniter HEATS, no Main Burner Test 10 Main Burner Ignition for Less than Five Seconds Test 11 Water Heater Shutting OFF below Setting Page

(A)BCG38T500-8P, (A)BCG385T500-8N specifications

The American Water Heater (A)BCG38T500-8P and (A)BCG385T500-8N are innovative options in the realm of residential water heating systems. Designed for efficiency and reliability, these water heaters are perfect for households looking for robust hot water solutions.

One of the primary features of these models is their 38-gallon capacity, which makes them suitable for medium to large households. They provide an ample supply of hot water for everyday needs such as showers, dishwashing, and laundry. With a powerful 50000 BTU gas burner, both models can heat water effectively, ensuring that users have access to hot water when they need it.

In terms of technology, both the (A)BCG38T500-8P and (A)BCG385T500-8N are designed with advanced, environmentally-friendly features. Their efficient design helps reduce energy consumption, making them compliant with Energy Star standards. This not only ensures that users save on utility bills but also contributes to a more sustainable approach to water heating.

The construction of these water heaters is robust, typically featuring a glass-lined tank to prevent corrosion and extend the lifespan of the unit. The exterior is designed to withstand the rigors of time while providing excellent insulation to minimize heat loss. Both models are also equipped with a durable anode rod that further enhances corrosion resistance.

Safety is another critical characteristic of the (A)BCG38T500-8P and (A)BCG385T500-8N. They include safety features such as a temperature and pressure relief valve, ensuring that the system operates safely under various conditions. Additionally, these models often come with a 6-year limited warranty, providing peace of mind for homeowners.

Installation is straightforward, as these water heaters are designed to fit standard plumbing setups. They also offer a range of adjustable settings, allowing homeowners to customize their hot water experience according to their specific needs.

In summary, the American Water Heater (A)BCG38T500-8P and (A)BCG385T500-8N stand out for their ample capacity, energy-efficient operation, durable construction, and safety features. They represent a reliable choice for those seeking effective and long-lasting water heating solutions in their homes.
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