COMMERCIAL GAS WATER HEATER

SERVICE MANUAL

TABLE OF CONTENTS

INTRODUCTION

3

Qualifications

3

Service Warning

3

Service Reminder

3

REQUIREMENTS

4

Instruction Manual

4

Tools Required

4

Tools Optional

4

INSTALLATION CONSIDERATIONS

5

Water Piping

5

Closed Water Systems

5

Thermal Expansion

5

Gas Pressure Requirements

5

Air Requirements

6

Air Supply

6

Insufficient Make-up Air, Negative Air Pressure,

and Downdrafts

7

Make-up Air: Direct Communication with Out-

 

doors

8

Contaminated Air

9

Clearances (Water Heater)

9

Clearances (Exterior)

10

Venting

11

OPERATION AND SERVICE

12

Sequence of Operation

12

Electrical Sequence

13

Wiring Diagram

14

Operating Sequence - Flow Chart

15

Gas Control Valve

16

Measuring Gas Pressures

16

Manifold Pressure Adjustment

17

Main Valve Solenoid Connections

17

Gas Control Valve/Burner Area View

18

Blower Prover Switch - Settings

19

Thermostat and Ignition control Board View

20

White Rodgers Integrated Control - Thermostat

21

White Rodgers Ignition Control Board

21

Pre-Service Checklist

22

TROUBLESHOOTING

23

Ignition Control Board: Error Codes

23

1

Flash

23

2

Flashes

23

3

Flashes

24

4

Flashes

24

6

Flashes

24

7

Flashes

24

8

Flashes

25

Continuous Flash

25

Continuous On

25

Integrated Heater Control: Display Lights

26

Test 1: 120 VAC to Heater Check

27

Test 2: Polarity Check

28

Test 3: Continuity Check of High Limit (ECO)

29

Test 4: Upper Temperature Probe

 

Continuity Check

30

Test 5: Calling for Heat - No Blower Operation

31

Test 6: Blower On, No Ignition

32

Test 7: Blower On, Blower Prover Switch Closed,

 

No Igniter Operation

33

Test 8: Igniter Heats, No Main Burner

34

Test 9: Igniter Heats, No Main Burner

35

Test 10: Main Burner Ignition for Less than

 

Five Seconds

36

Test 11: Water Heater Shutting Off Below Setting ..

37

Servicing should only be performed by a Qualified Service Agent

2

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American Water Heater (A)BCG38T500-8P, (A)BCG385T500-8N manual Commercial GAS Water Heater Table of Contents

(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.