State Industries 740A Water Heater User Manual


 
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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

GPG/GPV-540A, 650A or 740A model with the intent to use it

your dealer to obtain a correct model.
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
GENERAL SAFETY INFORMATION
PRECAUTIONS
DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN
UNDER WATER. Immediately call a qualied 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.
1. EXTERNAL FIRE.
2. DAMAGE.
3. FIRING WITHOUT WATER.
4. SOOTING.
LIQUID PETROLEUM MODELS
WARNING

TABLE OF CONTENTS
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
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
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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.