Trane UH-PRC001-EN The Model S Coil, The Model P Motor, Compact Design, Features and Benefits

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The Model S Coil

Features and Benefits

The Model S Coil

The Model S unit heater features a unique single tube serpentine coil.This compact, efficient coil has piping connections at the back for added space savings, convenience and appearance. Model S single circuit coils use threaded connectors at the back of the unit.

The Model P Motor

The Model P motor is mounted below the top panel inside the heater casing. This reduces unit height and permits the unit to be installed closer to the ceiling for added headroom.

Compact Design

Trane designed Model S and P propeller unit heaters for easy installation and low maintenance.TheTrane Sigma-Flo®fin design allows coil size to be reduced while maintaining high capacity performance equal to larger flat-fin coils. Reduced size and weight makesTrane unit heaters easy to handle and install.

Rectangular Draw-Thru Coils

The Model P draw-thru coils use short lengths of steel pipe threaded for supply and return connections.These features make piping connections much easier for the installer.

UH-PRC001-EN

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Contents Propeller Unit Heaters/Unitary UH-PRC001-EN17.4 to 705.6 MBh OctoberThe Industrial Designed Model P Unit Heater IntroductionFeatures and Benefits ContentsSelection Procedure Electric PowerPut HeatWhere It’s Needed Features and BenefitsThe Model P Motor The Model S CoilCompact Design Rectangular Draw-ThruCoilsFeatures and Benefits Model PModel S Features and Benefits External CouplingsTypical Factory Application ConsiderationsGeneral Rules Application Considerations HotWater System - Using Circulating PumpGeneral Notes HotWater System with Circulating Pump Vapor orVacuum SystemApplication Considerations Figure AC-4 Figure AC-5 Figure AC-6Trane Propeller Unit Heaters Selection ProcedureBTU Requirements Type of BuildingDetermining Special Steam Capacities FormulaUseful Data Equivalent Direct RadiationSelection Procedure Model S NomenclatureD BE Model P Model SSelection Procedure Table Based on 2 PSIG and 60 F Entering Air2 Lbs. Steam 60 F Entering AirTemp Selection Procedure2 Lbs. Steam 60 F Entering AirTemp Selection ProcedureTable SP-6- Maximum Spread Ft Selection ProcedureModel P Nomenclature Additional Selection DataMotor and Fan Speeds Selection ProcedureHotWater Selection Example Selection ProcedureSelection Procedure StepPropylene Glycol Correction Factors for Propylene Glycol/WaterPropylene GlycolMotors Model Number DescriptionMODEL P UNIT HEATER Motors D B EModel Number Description Performance Data Water Performance DataWater Performance DataWater Performance DataEntering WaterTemperature Performance DataEntering WaterTemperature Performance Data117.6 Performance DataEntering WaterTemperature Performance DataEntering WaterTemperature Performance DataWater Performance DataWater Performance DataWater Performance Data115.1 Performance DataWater Performance DataWater Performance DataEntering WaterTemperature Performance DataEntering WaterTemperature Performance DataEntering WaterTemperature Performance Data100.1 Performance DataEntering WaterTemperature Performance DataEntering WaterTemperature Performance DataElectric Power Accessory Electric PowerModel Electric PowerFigure DW-1 Dimensions and WeightsMotor MountType-1 Motor MountType-2Figure DW-2 Dimensions and WeightsIn Dimensions Figure DW-4 Dimensions and WeightsFigure DW-3 Table DW-4- Louver Cone Diffuser RoughingModel P General Mechanical SpecificationsCasing Model S GeneralPage TheTrane Company NRTL/C