York HFC-410A manual Evaporator Section, Condenser Features and Options, Roof Curbs

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FORM 100.50-EG5 (108)

Features and Benefits (continued)

EVAPORATOR SECTION

Double Wall Construction – Double-wall construction is the standard construction of the Eco2 and incorporates powder coated pre-fabricated outer panels and corner post for maximum exterior surface protection.

Factory Shrink-wrap– Eco2 rooftop units are shipped from the factory with factory-fresh shrink-wrap packag- ing. No longer does the contractor need to worry about dirt and debris clogging up condenser coils or moisture leaking into the air handler on the units way to the job site or rigging yard.

Copper Fins – For more extreme climates that aggres- sively can attack aluminum, copper tube evaporator coils with copper fins are available. (This is not recommended for units in areas where they may be exposed to acid rain or environments where ammonia is present)

CONDENSER FEATURES AND OPTIONS

Scroll Compressors – Reliable, efficient, trouble-free operation is the true measure of a packaged rooftop’s value. That’s why YORK Eco2 Packaged Rooftop Air Conditioners use established scroll compressor technology to deliver dependable, economical per- formance in a wide range of applications. With the Eco2 Packaged Rooftop, you get the latest generation of compressor enhancements added to the scroll’s inherent strengths. The simplicity of a hermetic scroll compressor allows the use of fewer moving parts to minimize breakdown.

Multiple Compressor Staging – Through the use of the scroll compressor, the Eco2 has the ability to stage its cooling by enabling and disabling multiple single stage compressors on multiple circuits. These compressors are manifolded together in pairs on a single refrigera- tion circuit.

Compressor Circuiting – the Eco2 is designed so that only 2 scroll compressors are in tandem within one refrig- eration circuit. This means more reliable compressors, and less equipment down time. With multiple circuits, if a compressor should ever fail on one circuit, the other circuit will remain operational to work to maintain occu- pied loads. The Eco2 system has 2 circuits in a unit.

Condenser Fan Motors – The condenser fan motors used on the Eco2 unit are Totally Enclosed Air Over (TEAO) to provide maximum durability through any season.

Hot Gas Bypass – This options permits continuous, stable operation at capacities below the minimum step of unloading by introducing an artificial load on the evaporator. For models YPAL050-061, it is used on the lead circuit and standard on VAV units.

Replaceable Core Liquid Line Driers – Liquid line driers are standard on the Eco2 rooftop unit. An option is provided for replaceable core driers.

Copper Fins – For more extreme climates that aggres- sively can attack aluminum, copper tube condenser coils with copper fins are available. (This is not recommended for units in areas where they may be exposed to acid rain or environments where ammonia is present)

Pre-Coated Fins – An epoxy-coated aluminum fin stock to guard from corrosive agents and insulate against galvanic potential. Recommended for mild seashore or industrial locations.

Post-Coated Fins – Technicoat coil-coating process used on condenser coils for seashore and other cor- rosive applications (with the exception of strong alkalis, oxidizers, wet bromide, chlorine and fluorine in concen- trations greater than 100ppm).

Compressor Sound Blankets – Optional compressor acoustic sound blankets are available for sound sensi- tive applications.

ROOF CURBS

Partial perimeter roof curbs – This option includes a knock-down 14” high roof curb for use with wood nailer (by others). Roof curb supports the air handling section with a separate support under the condenser end.

CABINET FEATURES AND OPTIONS

Double-Wall Access Doors - Full-sized access doors provide easy access into the unit for routine maintenance and inspection. Solid wall liners encase insulation and prevent damage and erosion into the airstream.

Industry-leading, 1,000-hour, salt-spray rating, per ASTM B117, keeps unit in superior condition.

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JOHNSON CONTROLS

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Contents Compliant MEA Ashrae90.1 231-02-ELower total cost of ownership Indoor air quality features for the indoor environ- mentIntroduction Simplicity Elite controller OptionTable of Contents Features and Benefits Outside AIR Damper Options CommunicationsFilter Options Relief SystemEvaporator Section Condenser Features and OptionsCabinet Features and Options Roof CurbsAccessories General Unit PlacementApplication Data LocationHorizontal Applications Duct ConsiderationsUnit Orientation EconomizerCopper-Fin Evaporator and Condenser Coil VAV Supply AIR Pressure ControlHarsh Environments Condenser and Evaporator Coil Protection Building Pressure Control SystemsAcoustical Considerations This page intentionally left blank Nomenclature YorkPhysical Data Physical DataMinimum OA Temp for Mech. Cig Model050 051 060 061 Gas Furnaces Low Ambient Option Min. OA Temp Minimum Airflow HeatingEER ModelIplv Ieer Model Supply Blower Cooling Only Gas Heat TypeAltitude and Temperature Corrections Air Altitude feet TempALTITUDE/TEMPERATURE Conversion Factor Cooling Performance Data 050 Model Cooling Performance DATA* 50 TON Standard CapacityCooling Performance Data 051 Model Cooling Performance DATA* 55 TON High CapacityCooling Performance Data 060 Model Cooling Performance DATA* 60 TON Standard CapacityCooling Performance Data 061 Model Cooling Performance DATA* 65 TON High CapacitySupply Fan Data Total Static Pressure inches of water columnCFM STD. AIR BHP RPM Component Static Pressure Drops CFMCFM STD Exhaust Fan DataExhaust FAN Motor Sizing Instructions AIR BHP RPMLoad Definitions Electrical Service SizingElectrical Data RLA LRAFans FLAUnit Size Quantity AmpsGAS Heating Operation Unoccupied / Occupied SwitchingControls Morning WARM-UPEconomizer Operation Ventilation Control SequencesExhaust Control Sequences Supply FAN Operation Smoke Purge SequenceLOW-AMBIENT/HEAD-PRESSURE Control Operation Cooling OperationDual-Point TB POWER-SUPPLY-CONDUCTOR Size RangeHeating Operation Supply Single-PointGeneral Arrangement General Arrangement DrawingDrawing Side Supply / Rear ReturnDrawings TOP ViewCurb Layout Drawing General Arrangement DrawingUnit Weights Unit Corner Weights Guide Specifications Product Specification WarrantiesEquipment Unit ConstructionFilter Section Evaporator SectionSupply Fan Section Discharge PlenumCondenser Section Controls Simplicity Elite Installation ExecutionInspection and START-UP Supervision ALL Rights Reserved
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