A.O. Smith BTH 300A, BTH 400A - Manual

A.O. Smith BTH 300A, BTH 400A

A.O. Smith BTH 300A, BTH 400A – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – FOREWORD; GAS VALVE PIPING
  • Page 3 – WATER TEMPERATURE CONTROL; TABLE OF CONTENTS
  • Page 4 – QUICK INSTALLATION TIPS; Horizontal Sidewall Venting
  • Page 5 – CAUTION; If power is interrupted prior to completing one heat cycle, the; DISHWASHING MACHINE REQUIREMENT
  • Page 6 – CIRCULATING PUMP; INSTALLATION INSTRUCTIONS; REQUIRED ABILITY; Do not cover the temperature & pressure relief valve.; LOCATING THE HEATER; WARNING
  • Page 7 – Always disconnect electrical power before servicing the unit; See MAINTENANCE section for details of tank cleanout procedure.; /kW) of the total input of all appliances in the
  • Page 10 – VENT PIPE TERMINATION; DIRECT VENTING; DIRECT VENT TERMINAL INSTALLATION; IMPORTANT; The intake vent terminal and the exhaust vent terminal must
  • Page 11 – Vent terminals supplied with the heater must be used.; EXHAUST VENT TERMINAL; VERTICAL VENT TERMINAL INSTALLATION; INSTALLATION SEQUENCE
  • Page 12 – Table 2. VENT LENGTH TABLE
  • Page 14 – DO NOT USE FLEXIBLE GAS PIPING.; CONNECTION OF GAS PIPE; When connecting gas pipe to unit, apply wrench to flange only.
  • Page 15 – SYSTEM CONNECTIONS; All piping components connected to this unit for space heating; NEVER; be introduced into this system.
  • Page 16 – HEATER WIRING
  • Page 18 – Possible Cause; OPERATION; SEQUENCE OF OPERATION
  • Page 21 – OPERATING INSTRUCTIONS
  • Page 22 – LIGHTING AND OPERATION INSTRUCTIONS; Clockwise to increase gas pressure and input rate.; FOR YOUR SAFETY READ BEFORE OPERATING
  • Page 23 – To reduce the; GENERAL INFORMATION; The initial start-up procedure of the unit is provided on page 19.; MAINTENANCE; GAS SUPPLY SPECIFICATIONS; NATURAL GAS
  • Page 26 – INSTALLATION DIAGRAMS; WITH OR WITHOUT BUILDING RECIRCULATION
  • Page 27 – TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE
  • Page 28 – : IF BUILDING COLD WATER SUPPLY HAS A BACK-; DANGER
  • Page 31 – MANIFOLD KITS; Space for the venting system and unit servicing must be added.
  • Page 32 – CHECKLIST AND SERVICE INFORMATION; VERIFY PROPER OPERATION AFTER SERVICING.; BURNER OPERATIONAL PROBLEMS; TROUBLESHOOTING
  • Page 33 – MOTOR WILL NOT RUN
  • Page 34 – NOISY BURNER OPERATION
  • Page 35 – Model BTH Limited Warranty
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1

PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.

PRINTED IN U.S.A. 0706

PART NO. 197373-001

CYCLONE XHE

®

Model BTH 300A AND 400A

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 PRINTED OR OUTLINED IN RED 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;

d o n o t u s e a n y p h o n e i n y o u r
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.

– I n s ta l l a t i o n a n d s e r v i c e m u s t b e

performed by a qualified installer,
service agency or the gas supplier.

www.hotwater.com

Series 976, 977

Series 976, 977

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Summary

Page 2 - FOREWORD; GAS VALVE PIPING

2 These designs comply with the current edition of the AmericanN a t i o n a l St a n d a r d f o r G a s Wa t e r H e a t e r s , Vo l u m e I I I ,ANSI Z21.10.3 / CSA 4.3 as an automatic circulating tank waterheater, and automatic storage water heaters. Detailed installation diagrams are found in ...

Page 3 - WATER TEMPERATURE CONTROL; TABLE OF CONTENTS

3 DANGER THIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLETHERMOSTAT TO CONTROL WATER TEMPERATURE. HOTWAT E R T E M P E R AT U R E S R E Q U I R E D F O R A U T O M AT I CDISHWASHER AND LAUNDRY USE CAN CAUSE SCALD BURNSRESULTING IN SERIOUS PERSONAL INJURY AND/OR DEATH.THE TEMPERATURE AT WHICH INJURY ...

Page 4 - QUICK INSTALLATION TIPS; Horizontal Sidewall Venting

4 “AT A GLANCE” BTH 300/400 QUICK INSTALLATION TIPS Horizontal Sidewall Venting Vertical Roof top Venting

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