Delta PG PLUS-25 warranty Excessive Horizontal Vent Runs, Vent Appliance Adapters

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Venting and Combustion Air Installation

Excessive Horizontal Vent Runs

If maintaining the 1/4 inch per foot pitch requirement creates clearance problems with structural obstacles, i.e. low ceilings, the installer may opt to installing the vent in a manner that pitches up to a high point from the unit and then pitches away from the high point to the vent termination.

A condensate tee should be installed as close as possible to the unit when venting in this manner.

The vent run from the high point to the vent termination should be as minimal in length as possible to reduce the amount of potential con- densate that may form in the vent system.

The vent system must maintain the 1/4 inch per foot pitch to the high point and from the high point to the vent termination.

WARNING

Failure to provide a vent condensate tee close to the appliance could allow acidic flue gas condensate to enter into the appliance flue ways causing premature failure of the appliance.

Condensate Drain Tube

To prevent flue gases from entering into the building it is important the drain tube is fash- ioned into a “pigtail” trap as shown in Figs. 19 through 22B pages 33 and 34.

The drain tube must be filled with water to pre- vent flue gases from emitting into the building prior to operating the appliance.

NOTICE

Vent Appliance Adapters

-The PERFORMANCE requires the use of an appliance adapter as approved by the one of vent manufacturers listed on page 27.

WARNING

Failure to use an approved vent appli- ance adapter may create improper vent connection and potential flue gas leak- age. Do not mix the manufacturer appli- ance adapter with other manufacturers’ vent components, the vent system could fail or improperly seal, causing leakage of flue products into the building.

Vent Condensate Tee

A vent condensate tee and drain tube should be installed on a horizontal run of vent near the appliance to prevent any potential condensate from entering the flue ways on the unit. See Figs. 19 through 22B pages 33 and 34.

Periodically inspect the water level in the condensate drain tube. If low, add water as needed to maintain trap level.

If water in drain tube evaporates rapidly due to ambient conditions, propylene glycol may be added or substituted to reduce evaporation.

Pipe the condensate drain tube to a suitable place of drainage or to a condensate pump or sump. Consult local authorities regarding dis- posal of flue gas condensate into public waste water system.

Determining Piping Lengths

Once the venting method and location for the vent termination has been determined the installer must select the vent components required for the system.

The maximum combined equivalent lengths for venting and combustion air inlet are as follows:

-Delta PERFORMANCE PLUS - 200 feet (100 feet each)

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Contents For Your Safety PG PLUS-25/30/35/40 Gas Fired Combination HeatersTable of Contents Section VI Vent / Combustion AIR Installation Section V Primary PipingSection VII GAS Piping Section Viii Internal WiringSection IX External Wiring Section X START-UP PreparationSection Xiii CHECK-OUT Procedures Section XI START-UP ProceduresSection XII Temperature Limits Section XIV Installation RecordSection Xvii Replacement Parts Product SpecificationsProduct & Safety Information To Protect Against Excessive Temperature and Pressure Homeowner What to do if YOU Smell GASDo not try to light any appliance Operating Restrictions Code Compliance Pre-Installation Items Section I Pre-Installation ItemsBoiler Replacement Determining Product LocationPre-Installation Items Residential Garage InstallationsCombustion Air and Venting Section II Combustion Air VentingCombustion Air Requirements Methods of Accessing Combustion Air Into a SpaceCombustion Air and Venting Air OpeningsOutdoor Combustion Air Equipment Located in Confined Spaces One Permanent Air InletCombination of Indoor and Outdoor Combustion Air Vent SystemRemoval of an Existing Boiler f rom a Common Vent System Handling Instructions Hydrostatic Test ProceduresUnit Preparation Section III Unit Preparation Hydrostatic Pressure TestUnit Preparation Completion of Hydrostatic Test and DrainingDomestic Piping Section IV Domestic Piping Domestic Piping Multiple Units Installation Mixing Valve AssemblyDomestic Piping Diagrams TR/SMART Series ApplicationPerformance Plus With Recirculation Performance Plus with Storage Tank Primary Piping Section V Primary Piping System Piping Zone Circulators Primary PipingCloset Zero Clearance Applications Sizing Primary PipingSystem Piping Radiant Heating with Mixing Valve Personal injury, death or substantial property damagePrimary Piping Near Appliance Piping Primary piping Zoning with Circulators Primary Piping Low Temperature Radiant System Primary Piping Venting and Combustion Air Installation Section VI Venting General RequirementsVenting and Combustion Air Installation Category IV Vent Termination ClearancesVenting Option Non Direct Vent / Vertical Multiple Vent TerminationsLocating the Combustion Air Inlet Venting Option Direct Vent / Vertical Venting Option Non-Direct Vent / HorizontalVenting Option Direct Vent / Horizontal Horizontal Wall Thimble KitDetermining Piping Lengths Excessive Horizontal Vent RunsVent Appliance Adapters Allowable Equivalent Length Combined Vent and Combustion Air Standard Horizontal Venting Installation Location of Air Inlet Termination Venting and Combustion Air Installation Section VII Gas Piping Recommended Gas Supply PipingNatural Gas Supply Pressure Requirements Natural GASPipe Sizing Natural Gas Propane Gas Supply Pressure Requirements Propane GASPipe Sizing Propane Gas Internal Wiring Section Viii Internal Wiring Wiring must be N.E.C ClassInternal Wiring Factory Wiring SchematicFactory Internal Wiring Outdoor Temperature Limit External Wiring Section IX External WiringInstallation Compliance Line Voltage ConnectionsExternal Wiring Multiple Zone Field Wiring Using Zone ValvesField wiring with zone circulators Typical Zone Relay Panel Wiring Section X Start Up Preparation Performance PlusFilling the Outer Primary Tank and System Check Low Water Cut-Off Device Check Thermostat Circuit Verify Correct Pressure SwitchAir Shutter Settings Performance Plus Start-up Start-Up ProceduresFinal Checks Before Start-up If Performance Plus Does Not Start CorrectlyOr loss of life For Your Safety Read Before LightingFollowing instructions must be followed exactly, a fire or Operating InstructionsNatural Gas Propane Temperature Limits Section XII Temperature Limits Recommended Secondary Thermostat SettingTemperature Limits Section XIII- Check-Out Procedures Section XIV Installation Record Owner Maintenance Section XV Maintenance ScheduleService Technician GeneralInspect the Burner Area Section XVI Maintenance ProceduresCheck the Surrounding Area Check Domestic System Check Combustion/ Ventilation Air OpeningsInspect Vent System and Combustion Air Piping Check Expansion TankCheck Control Wiring Check Temperature / Pressure Relief ValveCheck Ignition Wiring and Ground Wiring Check Thermostat Limit SettingsReview With Owner Check Burner Flame Flame SignalCheck Combustion Levels Section Xvii Replacement Parts Jacket Components Control Panel Components Electrical Panel Components Burner Components Specifications Graph 1 Performance Plus Pressure Loss Primary Side TTP Brazed Plate Heat Exchangers Maxi-flo Pool and Spa Heat Exchangers
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