State Industries SUF-60-120, SUF-100-250 instruction manual Venting Requirements

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Venting Requirements

Approved Materials

Approved vent and intake air pipe materials that may be used in the United States:

PVC Schedule 40 (ASTM D 2241 / CSA B181.2, ASTM D 1785 / CSA B137.3

CPVC Schedule 40 (ASTM F-411 / CSA B137.6)

ABS (ASTM D-2661)

Approved vent and intake air pipe materials that must be used in Canada:

ULC S636 PVC / CPVC

Field Supplied Fittings

Field supplied fittings should be equivalent to the piping material being installed. Field installed/supplied fittings will add equivalent feet to the vent or intake air piping as indicated below. All field supplied/installed fittings and piping must be factored into the equivalent feet calculations.

90° elbows (short or long radius) are equivalent to 5 linear feet (152 cm) of pipe.

45° elbows (short or long radius) are equivalent to 2.5 linear feet (76 cm) of pipe.

Primer and Cement

Tetrahydrofuran (THF) primer should be used to prepare the surfaces of pipe and fittings for solvent welding. If CPVC or ABS pipe and fittings are used, then the proper cement must be used for all joints, including joining the pipe to the factory provided terminations (PVC material). PVC Materials should use ASTM D-2564 Grade Cement; CPVC Materials should use ASTM F-493 Grade Cement and ABS Materials should use ASTM D-2235 Grade Cement.

Pipe Size Requirements

The water heaters covered in this manual are certified for the use of 3 and 4 inch pipe for the vent (exhaust) and intake air piping. If the installed equivalent length for the intake air or vent piping will be 50 feet (15.2 m) or less, 3 inch pipe must be used. If the installed equivalent length will be more than 50 feet (15.2 m), 4 inch pipe must be used.

Note: Install the pipe size required for the installed equivalent

length of each pipe independently. IE: If the intake air pipe will be 50 equivalent feet or less and the vent pipe will more than 50 equivalent feet; the intake air pipe must be installed using 3 inch pipe and the vent must be installed using 4 inch pipe.

Maximum Equivalent Lengths

Three Inch Pipe

The water heaters covered in this manual are certified to a maximum length of 3 inch pipe for the exhaust venting arrangement of 50 equivalent feet (15.2 m). The certified maximum length of 3 inch pipe for intake air piping is also 50 equivalent feet (15.2 m). IE: On Direct Vent installations both pipes can be up to 50 equivalent feet (15.2 m).

Four Inch Pipe

The water heaters covered in this manual are certified to a maximum length of 4 inch pipe for the exhaust venting arrangement of 120 equivalent feet (36.5 m). The certified maximum length of 4 inch pipe for intake air piping is also 120 equivalent feet (36.5 m). IE: On Direct Vent installations both pipes can be up to 120 equivalent feet (36.5 m).

Minimum Equivalent Lengths

Three Inch Pipe

The water heaters covered in this manual are certified to a minimum length of 3 inch pipe for the vent (exhaust) of 7 equivalent feet (2.1 m). There is no minimum equivalent feet requirement for the intake air pipe.

Four Inch Pipe

The water heaters covered in this manual are certified to a minimum length of 4 inch pipe for the vent (exhaust) of 50 equivalent feet (15.2 m). There is no minimum equivalent feet requirement for the intake air pipe.

Maximum Number Of Elbows

Three Inch Pipe

The vent pipe may have a maximum of four 90° elbows installed when 3 inch pipe is being used. The intake air pipe may also have a maximum of four 90° elbows installed. IE: in a Direct Vent configuration each pipe can have up to four 90° elbows installed.

Four Inch Pipe

The vent pipe may have a maximum of six 90° elbows installed when 4 inch pipe is being used. The intake air pipe may also have a maximum of six 90° elbows installed. IE: in a Direct Vent configuration each pipe can have up to six 90° elbows installed.

Factory Supplied Fittings

The water heater ships with two (2) factory supplied 3 inch terminations (PVC 45° elbows with debris screen). Factory supplied vent and intake air terminations or concentric terminations must be used. Factory supplied terminations and installed fittings (exhaust elbow and intake air connection) add zero equivalent feet to the vent and intake air piping.

Table 7

Number of

3 Inch Pipe

4 Inch Pipe

90° Elbows

 

 

Maximum Feet (Meters)

Maximum Feet (Meters)

Installed

 

 

One (1)

45 feet (13.7 meters)

115 feet (35.0 meters)

 

 

 

Two (2)

40 feet (12.2 meters)

110 feet (33.5 meters)

Three (3)

35 feet (10.7 meters)

105 feet (32.0 meters)

Four (4)

30 feet (9.1 meters)

100 feet (30.5 meters)

Five (5)

N/A

95 feet (29.0 meters)

Six (6)

N/A

90 feet (27.4 meters)

4 Inch Extended Vent Terminations

When 4 inch intake air or vent pipe is installed, factory supplied 4 inch terminations must be used. Contact your local distributor or call the parts department (phone number listed on the back cover of this manual) to order 4 inch termination(s).

Optional Concentric Terminations

The water heaters covered by this manual may be installed in a Direct Vent configuration using a 4 inch concentric termination.

Concentric terminations must be ordered separately. Contact your local distributor or call the parts department phone number listed on the back cover of this manual to order.

Concentric Vent Termination Part Numbers:

• 4” Concentric Termination # 9006328005

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Contents Commercial gas water heaters Table Of Contents Safe Installation, Use and Service ApprovalsGeneral Safety Information PrecautionsHydrogen Gas Flammable Overheated water can cause water tank explosionInstalling, using or servicing Water heater Fire or Explosion HazardFire and Explosion Hazard Preparing For The Installation IntroductionAbbreviations Used QualificationsFeatures And Components Basic OperationWater Heater’s 120 VAC on/off switch Top Views 120,000 & 150,000SUF 120 & 150 Components Top Views SUF 199 & 250 ComponentsWater heaters 24 Volt Gas Valve Left Side Right Side Installation Considerations Rough In DimensionsTOP Views Recovery Capacities Locating The Water HeaterGas Line Connection Size Storage CapacitiesExtended Vent Terminations Optional Concentric TerminationsHard Water Circulation PumpsInstallation Requirements Power SupplyGas Pressure Requirements Supply Gas LineMixing Valves Dishwashing MachinesClosed Water Systems Thermal ExpansionTemperature-Pressure Relief Valve Water Damage HazardValve Discharge Pipe Requirements Condensate Drain Combustible Material StorageContaminated Air Condensate Drain Water TrapBreathing Hazard Carbon Monoxide Gas Air RequirementsUnconfined Space Confined SpaceFresh Air Openings For Confined Spaces Outdoor Air Through Two OpeningsOutdoor Air Through One Opening Outdoor Air Through Two Horizontal DuctsPage Commonwealth of Massachusetts InspectionVenting Installation General Venting InformationGeneral Venting Instructions SUF 199 & SUF 250 Intake Air Connection Correct OrientationLarge Hose Fernco Clamp TEE FittingVenting Requirements Venting Installation Sequence Power Vent InstallationDirect Vent Installation Intake AIR Screen Field SuppliedVertical Termination Installation Standard Factory Supplied TerminationsMaximum Factory Supplied Standard Termination Field Supplied STRAP/SUPPORTIntake AIR AND/OR Vent Exhaust Sidewall Termination Installation Concentric Termination Installation Determine the location for the terminationInch Concentric Termination Installation Inch Concentric Termination KITTWO Concentric Terminations Three Concentric TerminationsFour Concentric Terminations Eight Concentric TerminationsMultiple Concentric Termination Arrangements Two Concentric TerminationsEight Concentric Terminations Sidewall RoofPower Vent Horizontal Venting ArrangementsDirect Vent Horizontal Direct Vent Vertical Vent Horizontal Intake Direct Vent Horizontal Vent Vertical IntakeDirect Vent Horizontal Concentric Termination Clearances Sidewall Power Vent Power VentTermination Clearances Sidewall Direct Vent Direct VentWater Heater Installation Condensate Drain InstallationInstallation Notes Installation InstructionsSupply Gas Line Installation Gas Line SizingSupply Gas Line Sizing U. S. Units Supply Gas Line Sizing Metric UnitsSupply Gas Regulator Installation Gas Line Leak TestingGas Line Connection Electrical Wiring Power Supply ConnectionsEnable/Disable Circuit Connecting An External Supervisory ControlWater Piping Diagrams Water Line ConnectionsValve Discharge Pipe Thermometers not SuppliedTemperature Regulation High Temperature Limit Control ECOHigh Temperature Applications Thermostat ControlTank Temperature 103F Operating Set Point 120F Control System OperationOverview Control System NavigationStatus Icons Icon DescriptionOperating States State DescriptionControl System Menus Menu DescriptionUser Settings & Control System Menus Update CancelBack Help Description/Action DisplayChange Back Help Display Settings Description/Action Heater Information Description/Action DisplayBack Advanced View Back HelpECO YESUpdate Service Contact InformationSelect Back Help NameStart Up Prior to Start upInitial Start Up GAS Valve / Venturi Assembly TOP View GAS Valve TOP Detail ViewLighting The Water Heater Gas pressure reading while the water heater is firingMultiple Appliance Installations High Altitude Installations Checking The Firing Rate1050 = 300,000 Btu/hr 87.9 kW To Turn Off GasLighting The Water Heater SUF 60 120 and SUF 100 150 Models onlyLighting & Operation Labels Tank Temperature 103F Operating Set Point 120F SUF 100 199 and SUF 100 250 Models onlyTroubleshooting Installation ChecklistSequence Of Operation Sequence Of Operation Flow Chart Closed by control system Fault Msg is displayedPre-Purge cycle Operational Problems Installation ErrorsRough Starting, Rough Operation Momentary IgnitionFault And Alert Conditions Fault And Alert Messages Possible Causes Check/Repair Displayed Fault/Alert MessageBack Advanced Blower Prover Failure No Anode VoltageMaintenance Maintenance ScheduleGeneral Draining And FlushingFilling The Water Heater Sediment RemovalLime Scale Removal Manual Lime Scale RemovalPowered Anode Rods Drain Valve and Access PanelsTemperature-Pressure Relief Valve Test Vent SystemDiagrams J3 J5J10 J13 J11 CCB Central Control Board LayoutSUF 120 & 150 Wiring Diagram User Interface ModulSUF 199 & 250 Wiring Diagram CCB Central Control BoardCirculation Pump Wiring Diagrams Water Piping Diagrams Temperature & Pressure Tank Temperature ALT. Cold Water State Storage Tank Water Piping Diagrams Line Temperature Control HOT Water Outlet Pipe T&P to Open Drain Finished Floor Limited Warranty