Combustion Air Direct from Outside | Lochinvar 1, 000 through 2

Lochinvar 1, 000 through 2 warranty Combustion Air Direct from Outside

Page 5

NOTE

Clearances from combustible construction are noted on the appliance rating plate.

Maintain minimum specified clearances for adequate operation. All installations must allow sufficient space for servicing the vent connections, water pipe connections, integral circulating pump, bypass piping and other auxiliary equipment, as well as the appliance. The clearance labels on each appliance note the same service and combustible clearance requirements as shown in the clearances from combustion construction table.

Multiple appliances may be installed in a modular boiler or water heater installation. Multiple appliances may be installed side by side with no clearance between adjacent appliances because this appliance is approved for zero clearance from combustible surfac- es and no service access is required from the sides.

Consult the venting section of the manual for specific installation instructions for the appropriate type of venting system that you will be using. Direct Vent and Intelli-Ventventing systems require installation with Category IV flue pipe, sealed air inlet pipe and air inlet caps, which must meet the manufacturer’s specifications.

COMBUSTION AND VENTILATION

AIR REQUIREMENTS FOR

APPLIANCES DRAWING AIR FROM

THE EQUIPMENT ROOM

Provisions for combustion and ventilation air must be in accordance with Section 5.3, Air for Combustion and Ventilation, of the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CAN/CGA Standard B149 Installation Code for Gas Burning Appliances and Equipment, or applicable provisions of the local building codes.

The equipment room MUST be provided with properly sized openings to assure adequate combustion air and proper ventilation when the unit is installed with a basic Category IV venting system.

FIG. 5 Combustion Air Direct from Outside

1. If air is taken directly from outside the building with no duct, provide two permanent openings:

a.Combustion air opening, with a minimum free

area of one square inch per 4000 Btu input (5.5 cm2 per kW). This opening must be located within 12" (30cm) of the bottom of the enclosure.

b. Ventilation air opening, with a minimum free area of one square inch per 4000 Btu input (5.5 cm2 per kW). This opening must be located within 12" (30 cm) of the top of the enclosure.

FIG. 6 Combustion Air Through Ducts

2.If combustion and ventilation air is taken from the outdoors using a duct to deliver the air to the mechanical room, each of the two openings should be sized based on a minimum free area of one square inch per 2000 Btu (11 cm2 per kW) of input.

Image 5

Contents

IFB/IFW-i&s-05 WarrantySpecial Instructions To Owner 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 VentExceed a maximum of 100 equivalent feet 30.5 m in length Drain Tee InstallationGeneral Category IV Vent Termination Clearances 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 InstallationsLocation of a Sidewall Air Inlet Cap Sidewall Combustion AIR InletTable G 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 ConnectionsMinimum Pipe Size Requirements Secondary Heat Exchanger Primary Heat ExchangerInlet and Outlet Connections 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 DriveExcel High GAS Pressure Switch LOW GAS Pressure Switch OptionalLOW AIR Pressure Switch 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 InstallationsTable W Singly Terminated FTT Network Bus Topology SpecificationsInterfacing Multiple Appliances Additional Components Used to Interface Multiple Appliances Wire Termination for E-Bus ConnectionTypical Building Management System Diagram High Water Temperature Limit ControlIgnition Module Lockout Functions Service PartsHOT Surface Ignition System 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 RearReplenishing the Neutralizer Condensate TestingCondensate Trap Installation 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 FlowPlacing the Boiler Operation TEMPERATURE/PRESSURE GaugeTypical Heating Boiler Installations Boiler Operation Installation with a Chilled Water SystemBoiler Operating Temperature Control Typical Water Heater Piping with Storage Tank Water Velocity ControlMaximum Flow Rate Btu/hr Input Table EETable FF Water Chemistry Single Water Heater Piping with Two Storage Tanks Piping Multiple Unit InstallationsPump Operation Table GGHeat Exchanger Common ManifoldTable HH Thermostat SettingsCathodic Protection Optional Relief ValveThermal Expansion Ladder Diagram PWM Wiring Diagram

Related manuals

Lochinvar 1, 000 through 2 warranty Combustion Air Direct from Outside

FIG. 5 Combustion Air Direct from Outside

FIG. 6 Combustion Air Through Ducts