Lochinvar 399, 999 - 750, CF-CH(E)-i&s-08 service manual Vertical DV Venting Termination

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Installation and Service Manual

Drain Tee Installation

A drain tee must be installed in the vent pipe to collect and dispose of any condensate that may occur in the vent system. The drain tee must be installed as the first fitting after the horizontal ell on the top of the unit (see FIG. 23B). Plastic drain tubing, sized per the vent manufacturer’s instructions, shall be provided as a drain line from the tee. The drain tubing must have a trap provided by a 3" (7.6cm) diameter circular trap loop in the drain tubing. Prime the trap loop by pouring a small quantity of water into the drain hose before assembly to the vent. Secure the trap loop in position with nylon wire ties. Use caution not to collapse or restrict the condensate drain line with the nylon wire ties. The condensate drain must be routed to a suitable drain for disposal of condensate that may occur in the direct vent system. Refer to the condensate drain installation instructions as supplied by the manufacturer of the vent material.

FIG. 23B Aire-Lock Direct Vent (Illustration with Sidewall Vent and Sidewall Combustion Air)

WARNING: Do not combine the flue from this unit with the vent from any other appliance. Do not combine flues from multiple appliances into a common vent. The flue from this unit must be a dedicated stack.

Connect the flue vent directly to the flue outlet opening on the top of unit. Make the connections from the unit vent to the outside stack as direct as possible with no reduction in diameter. Provide adequate clearance to combustibles for the vent connector and firestop. Follow the vent manufacturer’s instructions when installing sealed AL29-4C vents and accessories, such as firestop spacers, vent connectors, thimbles, caps, etc.

Provide adequate clearance to combustibles for the vent connector and firestop.

When planning the venting system, avoid possible contact with plumbing or electrical wiring inside walls, ceilings, and floors. Locate the unit as close as possible to chimney or gas vent.

When a vent system is disconnected for any reason, the flue must be reassembled and resealed according to the vent manufacturer’s instructions.

The installed length of flue from the unit to the outside point of termination must not exceed 50 equivalent feet (15.2m). Subtract 5 feet (1.5m) of equivalent length for each 90° elbow. Subtract 2.5 feet (0.7m) of equivalent length for each 45° elbow.

Vertical DV Venting Termination

You must use the vent termination recommended by the vent manufacturer for vertical direct vent terminations. Follow all vertical venting termination information for clearances and location under Vertical Vent Termination Clearances and Location, page 11.

Masonry Chimney Installation

Do not use a standard masonry chimney to directly vent the combustion products from this unit.

To use a masonry chimney, the chimney must use a sealed, corrosion-resistant liner system. Sealed, corrosion-resistant liner systems (single-wall, double-wall, flexible, or rigid) must be rated for use with a high efficiency, positive pressure vent system.

Corrosion-resistant chimney liner systems are typically made from a high grade stainless steel such as AL29-4C. The liner must be properly sized and fully sealed throughout the entire length. Both the top and bottom of the masonry chimney must be capped and sealed to provide a dead air space around the liner.

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.

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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 InstallationPump Operation Outdoor Boiler InstallationLocation Freeze ProtectionCombustion Air Filter Shut-Down and DrainingFreeze Protection for a Heating Boiler System if required Combustion and Ventilation AIROutside Combustion Air, No Ducts Combustion Air OptionsCombustion Air from Interior Space Vertical Vent Termination Clearances and Location VentingExhaust Fans General InformationChimney 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 Venting Without Fan Sidewall VentingSidewall Fan Sidewall Venting TerminationVenting Guidelines Horizontal DirectAire Venting Masonry Chimney InstallationDirect Venting Vent KitsVertical DV Venting Termination Combustion Air Inlet Piping Connecting the Air Inlet Pipe to the UnitHorizontal DV Venting Termination Flue Pipe MaterialsSealing PVC, CPVC, ABS, Dryer Vent, and Flex Duct Vent Pipe Air Inlet Piping MaterialsMaximum Outdoor Installation VentingOutdoor Vent Cap Kit Outdoor Vent/Air Inlet LocationGas Pressure Test Connecting to GAS SupplyConnecting Gas Piping to Unit Gas PipingInput 51-100 101-200 201-300 301-500 Gas Train and ControlsTABLE-J Btu/hr Distance From Meter in feetVenting 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 Primary/Secondary Boiler Piping Heat Exchanger Pressure Drop ChartCirculator Pump Specifications Pump Installation and MaintenanceInput 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 Bypass Requirements Temperature/Pressure GaugeBoiler Flow Rate Placing the Boiler in OperationBoiler 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 Standard Btu/hr Models Power UpQuick Programming Overview To Turn Off Gas To ApplianceTABLE-R Adjust Menu Setting DescriptionsAdjust Menu Settings for Operating Modes TABLE-QProgramming Buttons Ignition Systems and StagesOperating Modes Placement of Sensors Access LevelsTemperature Control Staging Logic Graphic SymbolsProgramming For Mode 1, Boiler Operation TABLE-S Programming For Mode 2, Water Heating OperationProgramming For Mode 3, Sequenced Operation Remote Mounting of SensorsHot Surface Ignition Control Module Error and Warning MessagesHOT Surface Ignition System Hot Surface Igniter and Ignition Control ModuleRemoving the Control Panel Diagnostic Status IndicationAccess to Internal Control Panel Ignition Control Diagnostic CodesHot Surface Ignition Module Timings Nominal Operation and Diagnostic LightsStatus LED Diagnostic Codes Ignition and Control TimingsWater Chemistry Required Temperature RiseTemperature Rise Chart Water Velocity Control399,999 750,000 Btu/hr Models Pipe Size RequirementsCirculating Pump TABLE-XTABLE-Y Potable Hot Water Temperature Control SettingsMinimum Pump Performance Heat ExchangerLocation of Cold Water Supply Piping Connections High Water Temperature Limit ControlOptional Relief Valve Thermal ExpansionWater Circulating Pump Flue Gas Passageways Cleaning ProceduresBurner Removal and Cleaning Appliance AreaCombustion 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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399, CF-CH(E)-i&s-08, 999 - 750 specifications

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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In summary, the Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 represents a blend of efficiency, reliability, and safety in commercial heating. Its advanced technologies and thoughtful design make it a powerful solution for various heating needs, making it an ideal choice for businesses aiming for excellence in energy management and operational efficiency.