Lochinvar 399 Vertical DirectAire Venting, Vertical Vent Termination Clearances and Location

Page 17

Installation and Service Manual

3.If possible, close all building doors and windows. Close all doors between the space in which the appliances remaining connected to the common venting system are located and other building spaces.

4.Turn on clothes dryers and any other appliances not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan.

5.Close fireplace dampers.

6.Place in operation the unit being inspected. Follow the lighting instructions. Adjust thermostat so unit will operate continuously.

7. Test for spillage at the draft hood/relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar or pipe.

8.After making sure that each appliance remaining connected to the common venting system properly vents when tested as above, return doors, windows, exhaust fans, fireplace dampers and other gas burning appliances to their previous conditions of use.

9.Correct any improper operation of the common venting system so that the installation conforms to the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CAN/CGA-B149 Installation Code for Gas Burning Appliances and Equipment. When resizing any portion of the common venting system, resize to approach the minimum size as determined using the appropriate tables of the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CAN/CGA-B149 Installation Code for Gas Burning Appliances and Equipment.

Masonry Chimney Installations

A masonry chimney must be properly sized for the installation of a high efficiency gas-fired appliance. Venting of a high efficiency appliance into a cold or oversized masonry chimney can result in operational and safety problems. Exterior masonry chimneys, with one or more sides exposed to cold outdoor temperatures, are more likely to have venting problems. The temperature of the flue products from a high efficiency appliance may not be able to sufficiently heat the masonry structure of the chimney to generate proper draft. This will result in condensing of flue products, damage to the masonry flue/tile, insufficient draft and possible spillage of flue products into an occupied living space. Carefully inspect all chimney systems before installation.

WARNING: Do not vent this unit into a masonry chimney without a sealed stainless steel liner system. Any breaks, leaks, or damage to the masonry flue/tile will allow the positive- pressure flue products to leak from the chimney and into occupied living spaces. This could cause serious injury or death due to carbon monoxide poisoning and other harmful flue products.

IMPORTANT: Check with local code officials to determine code requirements or the advisability of using a masonry chimney with a sealed corrosion-resistant liner system.

Inspection of a Masonry Chimney

A masonry chimney must be carefully inspected to determine its suitability for the venting of flue products. A clay-tile-lined chimney must be structurally sound, straight and free of misaligned tile, gaps between liner sections, missing sections of liner or any signs of condensate drainage at the breaching or clean out. If there is any doubt about the condition of a masonry chimney, it must be relined with a properly-sized and approved chimney liner system. An unlined masonry chimney must not be used to vent flue products from this high-efficiency unit. An

unlined chimney must be relined with an approved chimney liner system when a new appliance is being attached to it.

Metallic liner systems (Type-B double-wall or flexible or rigid metallic liners) are recommended. Consult with local code officials to determine code requirements or the advisability of using or relining a masonry chimney.

Vertical Vent Termination Clearances and Location

Follow all vertical venting termination information for clearances and location under Vertical Vent Termination Clearances and Location, page 11.

2. Vertical DirectAire™ Venting

IMPORTANT: Before installing the venting system, follow all venting clearances and and requirements found in the Venting, General Information section, page 11.

The Vertical DirectAire™ vent system is the same as the Conventional Negative Draft vent system, except it pulls combustion air from the outdoors through a vertical air inlet. Follow all requirements in 1. Conventional Negative Draft Venting, page 16.

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Contents Domestic Water Heaters Hydronic Heating Boilers and Domestic Water Heaters Unpacking General Product InformationSafety Information Installation Clearances from Combustible Construction InstallationLocation Outdoor Boiler InstallationFreeze Protection Pump OperationFreeze Protection for a Heating Boiler System if required Shut-Down and DrainingCombustion and Ventilation AIR Combustion Air FilterOutside Combustion Air, No Ducts Combustion Air OptionsCombustion Air from Interior Space Exhaust Fans VentingGeneral Information Vertical Vent Termination Clearances and LocationChimney Sidewall Vent Termination Clearances and LocationSidewall Air Inlet Combustion Air Inlet PipingLength of Air Inlet Pipe Clearances Vertical Rooftop Air InletBarometric Damper Location Vent System OptionsCombined Air Inlet Points Flue Outlet Piping Conventional Negative Draft VentingNegative Draft Vertical Vent Termination Clearances and Location Vertical DirectAire VentingVenting of Flue Products Installation Vent KitsSidewall Fan Sidewall VentingSidewall Venting Termination Sidewall Venting Without FanVenting Guidelines Horizontal DirectAire Venting Masonry Chimney InstallationDirect Venting Vent KitsVertical DV Venting Termination Horizontal DV Venting Termination Connecting the Air Inlet Pipe to the UnitFlue Pipe Materials Combustion Air Inlet PipingSealing PVC, CPVC, ABS, Dryer Vent, and Flex Duct Vent Pipe Air Inlet Piping MaterialsMaximum Outdoor Installation VentingOutdoor Vent Cap Kit Outdoor Vent/Air Inlet LocationConnecting Gas Piping to Unit Connecting to GAS SupplyGas Piping Gas Pressure TestTABLE-J Gas Train and ControlsBtu/hr Distance From Meter in feet Input 51-100 101-200 201-300 301-500Venting of Combination Gas Valves Combination Gas ValvesChecking Gas Supply Pressure Table L Gas Manifold Pressure AdjustmentMultiple Unit Installations Gas Supply Pipe Sizing Connecting to Water Supply Low Water Cutoff Water Flow SwitchRelief Valve Circulator Pump Requirements General Plumbing RulesWater Connections Heating Boilers Only Circulator Pump Specifications Heat Exchanger Pressure Drop ChartPump Installation and Maintenance Primary/Secondary Boiler PipingInput LTV Valve Kit Btu/hr Low Temperature Return Water SystemsTable O LTV Valve Kits 10ºF 20ºF 30ºF 40ºF Radiant Floor and Snow Melt Heating SystemsBoiler Flow Rate Temperature/Pressure GaugePlacing the Boiler in Operation Boiler Bypass RequirementsBoiler Operating Temperature Control Installation with a Chilled Water SystemTerminal Strip Connection Options Water TreatmentRemote ON/OFF Boiler or Water Heater For Your Safety Read Before OperatingOperation Quick Programming Overview Power UpTo Turn Off Gas To Appliance Standard Btu/hr ModelsAdjust Menu Settings for Operating Modes Adjust Menu Setting DescriptionsTABLE-Q TABLE-RProgramming Buttons Ignition Systems and StagesOperating Modes Placement of Sensors Access LevelsTemperature Control Staging Logic Graphic SymbolsProgramming For Mode 1, Boiler Operation Programming For Mode 3, Sequenced Operation Programming For Mode 2, Water Heating OperationRemote Mounting of Sensors TABLE-SHOT Surface Ignition System Error and Warning MessagesHot Surface Igniter and Ignition Control Module Hot Surface Ignition Control ModuleAccess to Internal Control Panel Diagnostic Status IndicationIgnition Control Diagnostic Codes Removing the Control PanelStatus LED Diagnostic Codes Operation and Diagnostic LightsIgnition and Control Timings Hot Surface Ignition Module Timings NominalTemperature Rise Chart Required Temperature RiseWater Velocity Control Water ChemistryCirculating Pump Pipe Size RequirementsTABLE-X 399,999 750,000 Btu/hr ModelsMinimum Pump Performance Potable Hot Water Temperature Control SettingsHeat Exchanger TABLE-YOptional Relief Valve High Water Temperature Limit ControlThermal Expansion Location of Cold Water Supply Piping ConnectionsBurner Removal and Cleaning Flue Gas Passageways Cleaning ProceduresAppliance Area Water Circulating PumpCombustion and Ventilation Air Heat Exchanger CleaningElectrical Adjustment Procedure Adjusting Differential Air PressureSet Up Procedure Ignition System Checkout Servicing Hot Surface Igniter and Ignition ModuleSequence of Operation Ignition Troubleshooting Guide 990,000 2,070,000 Btu/hr Models Domestic Water Heaters Hydronic Heating Boilers Ladder Diagram 399,999 750,000 BTU/HR Models Hydronic Heating Boilers and Domestic Water Heaters Installation Ladder Diagram 990,000 2,070,000 BTU/HR Models Models Wiring Diagram Hydronic Heating Boilers and Domestic Water Heaters BTU/HR Models
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Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 is a cutting-edge boiler designed for commercial heating applications. With its robust construction and high efficiency, this model stands out in the crowded market of heating solutions.

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