Lochinvar 1, 000 through 2 warranty Vertical Combustion Horizontal INTELLI-VENT AIR Inlet

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VERTICAL COMBUSTION

 

HORIZONTAL INTELLI-VENT

AIR INLET

 

WITH SIDEWALL COMBUSTION AIR

 

 

 

FIG. 30 Air Inlet Cap for Rooftop Termination

The air inlet cap for the vertical roof top air inlet is assembled from components purchased locally. The air inlet cap consist of two 90° elbows installed at the point of termination for the air inlet pipe. The first 90° elbow is installed on the rooftop at the highest vertical point of the air inlet pipe and turned horizontal, the second 90° elbow is installed on the horizontal outlet of the first elbow and turned down. A 90° elbow and a 90° street elbow may be used to make this assembly. If a straight piece of pipe is used between the two elbows, it should not exceed 6 inches (150 mm) in length. The termination elbow on the air inlet must be located a minimum of 12 inches (0.30 m) above the roof or above normal levels of snow accumulation.

Location of a Rooftop Air Inlet Cap

Incorrect installation and/or location of the air inlet cap can allow the discharge of flue products to be drawn into the combustion process on the heater. This can result in incomplete combustion and potentially hazardous levels of carbon monoxide in the flue products. This will cause operational problems with the heater and possible spillage of flue products that can cause personal injury, death or property damage.

Installation, location and clearance requirements for the rooftop air inlet cap in an Intelli-Vent application are the same as the installation, location and clearance requirements for the rooftop air inlet cap in the Vertical Direct Vent section of the venting instructions.

The rooftop combustion air inlet cap and the sidewall flue gas outlet are located in different pressure zones in an Intelli-Vent system.

Combustion air supplied from outdoors must be free of contaminants (see Combustion and Ventilation Air). To prevent recirculation of flue products in to the combustion air inlet, follow all instructions in this section and related Direct Vent sections.

Intelli-Vent systems are installed with a Category IV flue and a separate combustion air pipe to the outdoors. The Horizontal Intelli-Vent system terminates the flue at the sidewall and the combustion air on a sidewall other than the sidewall where the flue is located. The sidewall flue outlet and sidewall combustion air intake must terminate in different pressure zones.

Follow all requirements in the General Category IV Venting sections for proper installation and of venting flue products horizontally to the outdoors. All other general installation requirements must be followed.

The Intelli-Vent System requires the installation of an additional pipe to supply combustion air from outdoors directly to the appliance.

FIG. 31 Horizontal Intelli-Fin Installation with Sidewall

Combustion Air in a Different Pressure Zone

In cold climates, the use of type “B” double wall vent pipe or an insulated single wall pipe is recommended to help prevent moisture in the cool incoming air from condensing and leaking from the inlet pipe.

Termination point for the flue products must follow the clearance requirements in the Horizontal Sidewall Vent Termination section of the Category IV Venting.

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Contents
Warranty Special Instructions To OwnerIFB/IFW-i&s-05 Table of Contents Do not Checking EquipmentWhat to do if YOU Smell GAS Owner WarningRecommended Service Clearances Installation Procedure Location of UnitTable a Clearances from Combustible ConstructionCombustion Air Direct from Outside Minimum Recommended Combustion Table BAIR Supply to Mechanical Room 500 in2 3226 cm2 667 in2 4303 cm2 000 in2 12,903 cm2Construction Air Filter Construction AIR FilterVenting Construction AIR Filter Kits Table CTable D Category IV Flue Pipe SizesCategory IV Venting Category IV Positive Pressure Venting SystemCategory IV Flue Pipe Materials Venting Guidelines for a Category IV VentDrain Tee Installation General Category IV Vent Termination ClearancesExceed a maximum of 100 equivalent feet 30.5 m in length Vertical Venting Terminations Masonry Chimney InstallationsTable E Sidewall Venting TerminationsSidewall Vent Cap Kits Sidewall VentDirect Vent INTELLI-VENT Systems Location of a Sidewall Vent TerminationDirect Vent and Intelli-Vent Flue Air Inlet Pipe Sizes Table FAir Inlet Length of Air Inlet PipeCombined Combustion Air Inlet Points Vertical Direct Vent SystemsHorizontal Direct Vent Multiple Vertical Direct Vent InstallationsSidewall Combustion AIR Inlet Table GLocation of a Sidewall Air Inlet Cap These are Multiple Horizontal Direct Vent InstallationsCombined Air Inlet Points Table HMaximum Length of an Intelli-Vent System Air Inlet Sidewall Input Flue Pipe Btu/hr SizeAir Inlet Sidewall Input Flue Pipe Horizontal INTELLI-VENT with Vertical Combustion AIRBtu/hr Size Cap Kit 500,000 SVK3026Location of a Rooftop Air Inlet Cap Vertical Combustion Horizontal INTELLI-VENT AIR InletTable J Table K GAS Supply GAS Pressure TestGAS Connection Table LMultiple Appliance Installations Gas Pipe Size Chart Recommended Gas Pipe Size Single Appliance InstallationsTable M Table NInstall Piping to Control GAS Manifold Pressure AdjustmentGAS Piping Checking GAS Supply PressureChecking Manifold GAS Pressure Water Connections Water ConnectionsSecondary Heat Exchanger Primary Heat Exchanger Inlet and Outlet ConnectionsMinimum Pipe Size Requirements Bypass Valve Synchronization Integral BypassIntegral Circulator Bypass Piping AssemblyOptional Intermittent Pump Operation Bypass Initial Set-up of Maximum Water FlowBtu/hr Input Temperature Rise Minimum Water TemperaturesTable P Bypass OperationTable Q Water Flow SwitchLOW Water Cutoff GAS Train and ControlsDiaphragm GAS Valve Ratio GAS Valve Relief ValveElectrical Connections Jacket AssemblyFront Control Panel Locations Access to Components and ControlsTransformer and Relay Locations Variable Frequency DriveHigh GAS Pressure Switch LOW GAS Pressure Switch Optional LOW AIR Pressure SwitchExcel Be used as a diagnostic indicator Default Values Pre-programmed in the Excel Temperature AdjustmentTable S To Activate the Manual OverrideConfiguring Command Display Password FunctionTable T Display Default Values Accessing the SIX Changeable Points from Command DisplayTotal Run Time Calculated Set PointSet Point Temp Sequencing TypeCommand Display Data Screen Table U Status PointsStatus Point Operational Modes Hot Surface Igniter OnOptional on Heating Boilers Only Outdoor Reset Function SelectionsEfficiency Optimized with Time Equalization Multiple Appliance InstallationsSingly Terminated FTT Network Bus Topology Specifications Interfacing Multiple AppliancesTable W Additional Components Used to Interface Multiple Appliances Wire Termination for E-Bus ConnectionTypical Building Management System Diagram High Water Temperature Limit ControlService Parts HOT Surface Ignition SystemIgnition Module Lockout Functions Table Y Diagnostic Status IndicationIgnition and Control Timings Table ZIndicator OPERATION/DIAGNOSTIC LIGHTS, Resets and SwitchesBurner Table AACombustion Air Blower and Transition Chamber Combustion AIR BlowerSystem Optional Condensate ManagementTable BB Condensate Drain Location On RearCondensate Testing Condensate Trap InstallationReplenishing the Neutralizer Lighting Instructions Install Condensate TrapIgnition System Checkout To Turn OFF GAS to ApplianceHeat Transfer Process Sequence of OperationEnd of Sequence MaintenanceBurner Maintenance Burner Removal and CleaningLocation of Primary Heat Exchanger Burner Cleaning ProcedureSecondary Heat Exchanger Inspection Lubrication Freeze Protection Freeze Protection for a Heating Boiler System If Required Heating Boiler InstallationsWater Treatment Water Connections Heating Boilers onlyPiping Lengths Primary Loop Circulator Pump SpecificationsBoiler Circulator Pump Limitations Circulator Pump OperationPRIMARY/SECONDARY Boiler Piping Minimum Boiler Water TemperaturesTable CC Boiler Temperature Rise Chart Table DDMaximum Flow for Heating Boiler Btu/hr Input Maximum FlowTEMPERATURE/PRESSURE Gauge Typical Heating Boiler InstallationsPlacing the Boiler Operation Installation with a Chilled Water System Boiler Operating Temperature ControlBoiler Operation Typical Water Heater Piping with Storage Tank Water Velocity ControlTable EE Table FFMaximum Flow Rate Btu/hr Input Water Chemistry Single Water Heater Piping with Two Storage Tanks Piping Multiple Unit InstallationsPump Operation Table GGHeat Exchanger Common ManifoldTable HH Thermostat SettingsOptional Relief Valve Thermal ExpansionCathodic Protection Ladder Diagram PWM Wiring Diagram
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