A.O. Smith BTPN, COF, COBT, BTP-140-140 warranty Foreword, Table Of Contents, Identification

FOREWORD

This manual is intended to be used in conjunction with other literature provided with the heater. This includes power burner and related gas control information. It is important that this manual and the additional publications be reviewed in their entirety before beginning any work.

The installation should be made in accordance with the regulations of the local code authorities and utility companies, which pertain to this type of water heating equipment.

MAKE SURE the fuel on which the heater will operate is the same as that specified on the heater model and rating plate.

THESE HEATERS MUST NOT BE INSTALLED ON COMBUSTIBLE FLOORS.

Instructions for periodic testing of various water heater safety devices are included in section titled COMBUSTION

ARRANGEMENT REQUIREMENTS AND SERVICE RECOMMENDATIONS.

In the absence of local codes, the installation must comply with the instruction as outlined in the latest publication of ANSI booklet NFPA-54/ANSI Z223.1 “NATIONAL FUEL GAS CODE”, NFPA No. 70 “NATIONAL ELECTRICAL CODE”, or Canadian Gas Association booklet CAN 1-B149.1 or CAN 1-B149.2 for Canadian Installations also be followed.

These manuals can be purchased from the American Gas Association Laboratories, 8501 East Pleasant Valley Road, Cleveland, OH 44131 or the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269-9101, or Canadian Gas Association Labortories, 55 Scarsdale Road, Don Mills, Ontario, Canada M3B 2R3.

TABLE OF CONTENTS

	PAGE		PAGE
FOREWORD	2	Gas Piping	7-8
IDENTIFICATION	2	Purging	8
GENERAL SAFETY INFORMATION	3	Gas Meter Size (City Gases Only)	8
Precautions	3	Gas Pressure Regulator	8
Grounding Instructions	3	Wiring	8-11
Improper Combustion	3	TWO UNIT MANIFOLD INSTALLATION	11
Liquid Petroleum Models	3	OPERATION	11
Extended Non-Use Periods (BTP Models Only)	3	Important	11
Insulation Blankets	3	General	11
High Altitude Installations	3-4	Filling	11
FEATURES	4	Combustion Arrangement Requirements
Water Temperature Control	4	And Service Recommendations	11-12
INSTALLATION INSTRUCTIONS	4	MAINTENANCE	12
Required Ability	4	General	12
Uncrating	4-5	Flushing	12
Locating the Heater	5	Draining	12
Leveling	5	Sediment Removal	12
Clearances	5	Lime Scale Removal	12-13
Air Requirements	5-6	Relief Valve	13
Thermal Expansion (Closed System)	6	Power Burner	13-14
Venting	6	Cleaning Flues - COF & COBT Only	14
Vent Connector	6	Vent Systems	14
Barometric Draft Control Assembly	6-7	Barometric Draft Control	14
Water Line Connections	7	TROUBLESHOOTING	14-15
Thermometers (Not Supplied)	7	Replacement Parts	15
Relief Valve	7	LIMITED WARRANTY	16

This manual is supplemented by the power burner manual. All information, including start-up and

maintenance relating to the burner, can be found in that manual.

IDENTIFICATION

The heater and burner mounted identification plates provide valuable information. When ordering parts or inquiring about a unit, be sure to include serial number, model number and type of fuel.

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