State Industries STC-074 specifications Draft Proving Pressure Switch Table

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SBN TANK TYPE COMMERCIAL GAS WATER HEATER

SERVICE HANDBOOK

Electrical Information

Part Name	Number	Voltage	Amperes
Integrated Water	194393-0	XFMER Secondary 24 V	1.5
Heater Control		Field Output 24 V	11.5
(Temperature Control
Board)
Inducer (Blower)	194408-0	120 VAC	1.7
ECO (Part of Upper		24 V - Opens at 203° ±
Temperature Sensor)	194396	5.4°F Closes ± 193° F	0.3
Main Gas Valve		24 VAC	1.5
Inducer (Blower)	194408	120 VAC	2.2 FLA
			3.5 LRA
Igniter	194405	120 VAC	2
OPT Power Venter		120 VAC	14.5 FLA
			26.0 LRA

Draft Proving (Pressure) Switch Table

		Pressure Setting To
		Close Switch (Inches
SBN Models	Part No.	W.C.)
366	194411-0	(-) 1.60 ± .10"
275	194411-1	(-) 2.00" ± .10"
310	194411-2	(-) 1.75" ± .10"
120, 200, 250, 390	194411-3	(-) 2.40" ± .10"

154, 180, 199	194411-4	(-) 2.60" ± .10"

-	194411-5	(-) 2.50" ± .10"

Technical Training Department

45

©2003

Ashland City, Tennessee

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Contents Service Handbook Table of Contents SBN Service Handbook Introduction Qualifications Custom Commercial Storage Tank Model Number Break DownInstallation Considerations Top and Front Views of Minimum Clearances To CombustiblesExterior Clearance Required Exterior ClearancesComb AIR Make-Up Air Direct Communication Not Direct Vent Make-Up Air Vertical Ducts Make-Up Air Horizontal DuctsContaminated Air Air for Combustion Flammable ItemsGas Valve Outlet View Venting Venting Atmospheric Multiple HeatersNine Rules for Good Vents SBN Tank Type Commercial GAS Water Heater Service Handbook SBN Tank Type Commercial GAS Water Heater Service Handbook Type B GAS Vent Multiple Gas Fired Tank-Type HeatersTechnical Dataventing Sequence Top ViewFront View of Water Heater SBN Tank Type Commercial GAS Water Heater Service Handbook HSI Integrated Ignition Control Board Lower Front View of SBN Water Heater HSIWiring Diagram ECOElectrical Sequence of SBN Water Heater Operation PRE-SERVICE Checklist Conditions Water Heater Control Ignition Control BoardFlash Codes of Diagnostic Indicator Test 2 Polarity CheckTest 2 Polarity Check Test 3 Continuity Check High Limit ECOIs indicated Test 4 Upper Temperature Probe Continuity CheckTest 3 Continuity Check of High Limit ECO Is not presentWater Heater Control Test 5 Calling for Heat no Inducer OperationCheck to Inducer Test on Ignition Board 4 Pin Receptacle E4 Test 6 Inducer ON-NO Ignition VAC Check of Blower Prover/Low Gas Pressure CircuitVoltage is not present between E4, Pin Test 8 Igniter Heats no Main Burner Test of Igniter and gas valve circuitTest 9 Igniter Heats no Main Burner Continuity Check Of Gas Valve CoilTest 10 Main Burner Ignition for Less than 5 Seconds Flame Prover Circuit CheckTest 11 Water Heater Shutting OFF below Setting If… ThenDisplay Lights on Integrated Heater Control ECO SBN Tank Type Commercial GAS Water Heater Service Handbook Technical Training Department 120 154 180 199 200A 250A 275A 310A 366A 400A General Questions and Answers SBN Tank Type Commercial GAS Water Heater Service Handbook Draft Proving Pressure Switch Table