A.O. Smith BTP(V)-540A, 650A, 740A warranty Table of Contents, General Safety Information

In addition to these instructions, the equipment shall be installed in accordance with those installation regulations in accordance with those installation regulations in force in the local area where the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction should be consulted before installations are made.

In the absence of local codes, the installation must conform with the instructions as outlined in the latest publication of National Fuel Gas Code (NFPA-54/ANSI Z223.1) and National Electric Code (NFPA-70). These manuals can be purchased from the Canadian Standards Association Laboratories, 8501 East Pleasant Valley Road, Cleveland, OH 44131, National Fire Protection Association, 1 Batterymarch Park, Quincy MA 02269.

TABLE OF CONTENTS

	PAGE		PAGE
ROUGH-IN-DIMENSIONS	2	Heater Wiring	19
FOREWORD	2,3	START UP	19
TABLE OF CONTENTS	3	Important	19
GENERAL SAFETY INFORMATION	3	Filling	19
Precautions	3	Purging	19
Liquid Petroleum Models	3	Wiring Diagram	20,21
Chemical Vapor Corrosion	3,4	Lighting and Operating Label	22
Improper Combustion	4	Sequence of Operation	23
EXTENDED NON-USE PERIODS	4	Water Temperature Control	23
Cathodic Protection	4	Adjustment Procedure (Initial Start-Up)	23,24
Insulation Blankets	4
		Adjustment Procedure for Fire-Rate, Low Nox and
High Altitude Installations	4
		High Elevation (Fine-Tune)	24-26
FEATURES	4
		GENERAL INFORMATION	27
Low Emmission Control	4
		Power Burner	27
High Limit Switch (E.C.O.)	4,5
		Thermostat	27
Dishwashing Machine Requirement	5
		High Limit	27
INSTALLATION INSTRUCTIONS	5
		MAINTENANCE	27
Required Ability	5
		General	27
Uncrating	5
		Maintenance Schedule	27
Locating the Heater	5,6
		Electrical Servicing	27
Hard Water	6
		Flushing	27
Clearances	6
		Draining	28
Air Requirements	6
		Sediment Removal	28
Venting	6,7
		Lime Scale	28
Vertical Venting - For BTP Models	7
		Relief Valve	28,29
Horizontal (Side-wall) Venting - For BTPV Models	7,8
		Circulating Pump	29
Direct Venting - For BTPV Models	9-11
		Low Emission Power Burner	29
Gas Piping	11-12
		Cleaning Flues	29
Gas Meter Size	12
		Barometric Draft Control	29
Gas Pressure Regulation	12
		Vent System	29
Gas Valves	12,13
Water Line Connections	13	CHECKLIST AND SERVICE INFORMATION	29-30
Thermometers	13	TROUBLESHOOTING	30-32
Relief Valve	13	Replacement Parts	32
INSTALLATION DIAGRAMS	14-17	WARRANTY	33
Manifold Kits	18	NOTES	34,35

GENERAL SAFETY INFORMATION

PRECAUTIONS

DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDER WATER. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

IF THE UNIT IS EXPOSED TO THE FOLLOWING, DO NOT OPERATE HEATER UNTIL ALL CORRECTIVE STEPS HAVE BEEN MADE BY A QUALIFIED SERVICEMAN.

are different from natural gas models. A natural gas heater will not function safely on LP gas and no attempt should be made to convert a heater from natural gas to LP gas.

BTP(V)-540A, 650A & 740A models are not available for use with Liquefied Petroleum or LP gas. If you have obtained a BTP(V)-540A, 650A or 740A model with the intent to use it with Liquefied Petroleum, LP gas - STOP! Immediately contact your dealer to obtain a correct model.

1.EXTERNAL FIRE.

2.DAMAGE.

3.FIRING WITHOUT WATER.

4.SOOTING.

LIQUID PETROLEUM MODELS

WARNING

Water heaters for propane or liquefied petroleum gas (LPG)

CHEMICAL VAPOR CORROSION

WARNING

CORROSION OF THE FLUEWAYS AND VENT SYSTEM MAY OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN CHEMICAL VAPORS. SUCH CORROSION MAY RESULT IN FAILURE AND RISK OF ASPHYXIATION.

Spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium

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