A.O. Smith 120 trough 500 manual BTR Service Checklist

Page 53

BTR TANK TYPE HEATERS

SERVICE WORKBOOK

BTR SERVICE CHECKLIST

(This service checklist may be photo copied to assist with BTR service call.)

This checklist is intended to aid the Service Agent in determining that the A.O. Smith BTR Water Heater has been properly installed and is operating correctly. Because the circumstances of each installation may vary greatly, it is not intended to be an all- inclusive list of the problems that the Service Agent may encounter. Any item checked "no" on this list should be thoroughly investigated and corrective action taken, if required.

SERVICE AGENT

 

INSTALLATION DATE

 

MODEL NUMBER

 

SERVICE DATE

 

SERIAL NUMBER

 

LOCATION ADDRESS

 

GAS TYPE - CHECK ONE

 

 

 

 

 

 

 

 

 

 

 

 

NATURAL

 

PHONE( )

___

-

____

 

 

 

 

 

 

PROPANE

 

 

 

 

 

 

I.Check Clearances (circle answer)

 

A. Are exterior clearances adequate?

yes

no

 

B. Are interior clearances adequate?

yes

no

 

Comments:

 

 

II.

Check Makeup Air Requirements

 

 

 

A. Is the quantity of make-up air adequate per the National Fuel Gas Code?

yes

no

 

Comments:

 

 

 

B. Is the quality of make-up air adequate?

yes

no

 

Comments:

 

 

III.Gas Pressure (fill in blank)

 

A.

Supply gas pressure

 

inches of w.c.

inches of w.c.

 

 

 

 

 

 

 

B.

Manifold gas pressure (main burner)

 

 

 

 

 

 

 

 

Comments:

 

 

 

 

 

IV.

Venting (check)

 

 

 

 

 

 

A.

Properly sized per the National Fuel Gas Code?

yes

no

 

B.

Does the installation have mechanically assisted venting?

yes

no

 

 

If so, is it operational?

 

 

 

yes

no

 

 

Comments:

 

 

 

 

 

V.WATER PIPING

A.O. Smith Water Products

52

Service Handbook

Irving, Texas ©

1999 Training Department

Page 52 Page 54
Image 53
Page 52 Page 54
Contents Page BTR Handbook Table of Contents BTR Tank Type Heaters Service HandbookBTR Tank Type Heaters Service Handbook Clearances from Combustibles BTR Tank Type Heaters Service Handbook InstallationClearance to Combustibles Table ModelExterior Clearance Excess AIR AIR for Combustion Cubic Feet of AIR PER 1,000 BTUSquare Inch Per 4,000 Btuh MAKE-UP AIRDirect Communication Vertical Ducts Square Inch Per 2,000 Btuh Horizontal DuctsBackdraft Insufficient MAKE-UP AIRFlammable Items Contaminated AIRAIR for Combustion Natural Gas Propane Gas GAS Pressure RequirementsBTR GAS Valve Chimney VentingAtmospheric Multiple Heaters Draft Inducer Single Unit InstallationPower Vent Kits for Sidewall Venting Sequence of Operation BTR Sequence of Operation100 109 Series BTR Electrical SequenceBTR Electrical Sequence of Operation Then Troubleshooting BTR Water HeatersStep Test the Transformer Step High LIMIT, Left Terminal Test Step Test High Limit Right Terminal After Push in Reset 24 VAC is now presentReasons For Resetting Condition Cause Solution Step Check the PC Board Step Inspect the DamperPC Board Motor Test Service SwitchStep Step Thermostat Test Test the Damper Test from Orange wire to Black neutralStep Damper Input Test Step Test Damper Output Effikal Damper Service SwitchAdapterNormal Operation Harness ChartStep a Test for 24VAC Between Black CommonStep C Test for 24VAC Between Black and Yellow Normal OperationStep B Step A1 Troubleshooting the Effikal Style DamperTest Between Black Common and Brown On the Damper BoardStep A3 Troubleshooting the Effikal Style DamperStep Wire Harness Test Step IID Module Test Step Pilot Spark Test BTR 120 400 GAS Valve Pilot Valve OHM TestPilot GAS Manifold Pressure TAP Blue White RED Pilot Valve Test BTR 500 onlyStep Main Burner Test Flame Rectification Step Flame RectificationPilot is lit Sparking has stopped Main GAS Valve Check Main GAS Valve Coil Check BTR 500 only Main GAS Valve Coil CheckHoneywell Ignition System 110 109 Series BTR Wiring Diagram Natural and Propane GASGeneral Service Chart When should BTRs be delimed? General Questions and AnswersSeries BTR Models 197BTR Models 197 Series Parts Description BTR Parts List for BTR Models 197 and 198 Series 100Series BTR Models 120 throughBTR Models 120 through Series 193873-1 193873-0 Component Part Information Name Specifications AOS Part NumbersBTR Service Checklist Proper Sequence of Operation Comments

120 trough 500 specifications

A.O. Smith, a renowned leader in water heating solutions, offers a wide range of products tailored to meet diverse needs. Among its most significant offerings is the A.O. Smith 120 through 500 series, which includes various models designed for both residential and commercial applications.

One of the standout features of the A.O. Smith 120 through 500 series is its efficiency. Many models are designed with advanced thermal insulation and heating technologies, which significantly minimize energy loss. This efficiency not only benefits the environment but also helps users save on energy bills, making these water heaters an economical choice for both homeowners and businesses.

The series includes both gas and electric water heaters, allowing users to select the option that best fits their energy preferences and availability. Gas models typically offer faster heating times and are ideal in areas where natural gas is readily accessible. Conversely, electric models come with a variety of voltage options, accommodating different electrical setups and preferences.

A notable technological advancement in the A.O. Smith 120 through 500 series is the incorporation of smart connectivity options. Some models are equipped with Wi-Fi capabilities, allowing users to monitor and control their water heater remotely via mobile apps. This feature provides real-time data, alerts, and updates, ensuring that users have complete control over their water heating needs.

Moreover, durability is a hallmark of the A.O. Smith brand. The tanks are often constructed from high-quality materials designed to resist corrosion. Many models also feature glass lining and protective coatings, which enhance the lifespan of the heater and minimize the risk of leaks.

Safety is another priority for A.O. Smith. The series is equipped with various safety features such as automatic shut-off mechanisms and temperature controls, ensuring that any potential issues are promptly addressed.

Overall, the A.O. Smith 120 through 500 series encapsulates innovation, efficiency, and reliability. With its versatile offerings and advanced features, it stands as an excellent choice for anyone in need of a dependable water heating solution. Whether for home use or in a commercial setting, these models deliver consistent performance and peace of mind.
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