A.O. Smith BTH 120-250(A) User Manual

1
A DIVISION OF A.O. SMITH CORPORATION
Mc BEE, SOUTH CAROLINA
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND
NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
PRINTED IN U.S.A. 1104 PART NO. 196145-001
CYCLONE XHE
®
Model BTH 120-250(A)
SERIES 970 AND 973
COMMERCIAL GAS WATER HEATER
GAS-FIRED POWER BURNER
FOR DOMESTIC HOT WATER
Thank you for buying this energy efficient water heater from
A.O. Smith Water Products Company. We appreciate your
confidence in our products.
CAUTION
TEXT IN BLACK BOLD TYPE OR UNDERLINED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY. PLEASE
READ THOROUGHLY BEFORE INSTALLING AND USING
THIS APPLIANCE.
• INSTALLATION • OPERATION • SERVICE • MAINTENANCE • LIMITED WARRANTY
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
– Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
– WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch;
do not use any phone in your
building.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
– Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.

A.O. Smith BTH 120-250(A) Specifications

General

Brand	A.O. Smith
Model	BTH 120-250(A)
Category	Water Heater
Language	English

Summary

Cyclone XHE Commercial Gas Water Heater

Safety Precautions and Gas Leak Response

Essential safety warnings, procedures for gas detection, and fire prevention.

Foreword and Installation Compliance

Introduction to the manual, adherence to standards, and prerequisites for installation.

Product Features and Specifications

Detailed list of the water heater's components, capabilities, and controls.

Installation Instructions and Requirements

Comprehensive guide for setting up the unit, including required skills and clearances.

Operation and Sequence of Use

Step-by-step instructions for starting, running, and understanding the unit's cycling.

Maintenance and Cleaning Procedures

Routine checks, tank flushing, scale removal, and component inspection.

Troubleshooting and Error Resolution

Guidance on diagnosing common issues, checking components, and resolving faults.

Limited Warranty Terms and Conditions

Details on warranty coverage, limitations, exceptions, and the claims process.