Table of Contents

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
ROUGH-IN-DIMENSIONS	2
FOREWORD	2,3
TABLE OF CONTENTS	3
GENERAL SAFETY INFORMATION	3
Precautions	3
Liquid Petroleum Models	3
Chemical Vapor Corrosion	3,4
Improper Combustion	4
EXTENDED NON-USE PERIODS	4
Cathodic Protection	4
Insulation Blankets	4
High Altitude Installations	4
FEATURES	4
Low Emmission Control	4
High Limit Switch (E.C.O.)	4,5
Dishwashing Machine Requirement	5
INSTALLATION INSTRUCTIONS	5
Required Ability	5
Uncrating	5
Locating the Heater	5,6
Hard Water	6
Clearances	6
Air Requirements	6
Venting	6,7
Vertical Venting - For GPG Models	7
Horizontal (Side-wall) Venting - For GPV Models	7,8
Direct Venting - For GPV Models	9-11
Gas Piping	11-12
Gas Meter Size	12
Gas Pressure Regulation	12
Gas Valves	12,13
Water Line Connections	13
Thermometers	13
Relief Valve	13
INSTALLATION DIAGRAMS	14-17
Manifold Kits	18

	PAGE
Heater Wiring	19
START UP	19
Important	19
Filling	19
Purging	19
Wiring Diagram	20,21
Lighting and Operating Label	22
Sequence of Operation	23
Water Temperature Control	23
Adjustment Procedure (Initial Start-Up)	23,24
Adjustment Procedure for Fire-Rate, Low Nox and
High Elevation (Fine-Tune)	24-26
GENERAL INFORMATION	27
Power Burner	27
Thermostat	27
High Limit	27
MAINTENANCE	27
General	27
Maintenance Schedule	27
Electrical Servicing	27
Flushing	27
Draining	28
Sediment Removal	28
Lime Scale	28
Relief Valve	28,29
Circulating Pump	29
Low Emission Power Burner	29
Cleaning Flues	29
Barometric Draft Control	29
Vent System	29
CHECKLIST AND SERVICE INFORMATION	29-30
TROUBLESHOOTING	30-32
Replacement Parts	32
WARRANTY	33
PARTS LIST	34-39

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.

GPG/GPV-540A, 650A & 740A models are not available for use with Liquefied Petroleum or LP gas. If you have obtained a GPG/GPV-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

State Industries 540A, 650A, 740A warranty Table of Contents, General Safety Information

GENERAL SAFETY INFORMATION