York DNP024, DNP060, DNP048, DNP030, DNP042, DNP036 warranty General, Description

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036-21366-007-A-1205

MECHANICAL SPECIFICATIONS

GENERAL

Units shall be manufactured by York International Unitary Products Group in an ISO 9001 certified facility. YORK’s DNP is a unit that gives you the flexibility and choices you need in today’s market. These packaged cooling/heating air conditioners are designed for outdoor installation. Only utility and duct connections are required at the point of installation. The gas fired heaters have aluminized steel tubular heat exchangers and hot surface to pilot ignition. They are avail- able in natural gas with field conversion to propane.

DESCRIPTION

Units shall be factory-assembled, single packaged, Electric Cooling/Gas Heating units, designed for outdoor mounted installation. For SEER ratings, refer to technical literature. They shall have built in, equal size, field convertible duct connections for down discharge supply/return or horizontal discharge supply/return. The units shall be factory wired, piped, charged with R-22 refrigerant and factory tested prior to shipment. All unit wiring shall be both numbered and color coded. All units shall be manufactured in a facility cer- tified to ISO 9001 standards, and the cooling performance shall be rated in accordance with DOE and ARI test proce- dures. The heating performance shall be rated to DOE and GAMA test procedures. Units shall be CSA listed and classi- fied to ANSI Z21.47/CAN/CSA 2.3 standards and UL 1995/ CAN/CSA No. 236-M90 conditions.

UNIT CABINET

Unit cabinet shall be constructed of G90 galvanized steel, with exterior surfaces coated with a non-chalking, powdered paint finish, certified at 1000 hours salt spray test per ASTM- B117 standards. The unit top shall be a single piece “Water Shed” design, with drip edges and no-seam corners to pro- vide optimum water integrity. Unit shall have a rigidly mounted condenser coil guard to provide protection from objects and personnel after installation. Indoor blower section shall be insulated with up to 3/4” thick, aluminum, foil faced insulation, fastened to prevent insulation from entering the air stream. Cabinet panels shall be “large” size, easily remov- able for servicing and maintenance, with built-in lift handles. Unit shall be built on a formed, “Super-Structure” design base pan, with embossments at critical points to add strength, rigidity and aid in minimizing sound. Full perimeter base rails shall be provided to assure reliable transit of equipment, overhead rigging, for truck access and proper sealing on roof curb applications. Base rails shall be removable, when required, to lower unit height. Filters shall be furnished and be accessible through a removable access door, sealed air- tight. Units vertical discharge and return duct configuration shall be designed to fit between standard 24” O.C. beams

without modification to building structure, duct work and base unit. Condensate pan shall be internally sloped and conform to ASHRAE 62-89 self-draining standards, with 3/4” NPTI copper, ridged mount connection.

INDOOR (EVAPORATOR) FAN ASSEMBLY

Fan shall be direct drive, multi-speed design. Job site selected (BHP) brake horsepower shall not exceed the motors nameplate horsepower rating. Fan wheel shall be double-inlet type with forward-curved blades, dynamically balanced to operate smoothly throughout the entire range of operation. Airflow design shall be constant air volume. Bear- ings shall be sealed and permanently lubricated for longer life and no maintenance. Fan assembly shall be “Slip Track” (slide-out) design for easy removal and cleaning.

OUTDOOR (CONDENSER) FAN ASSEMBLY

The outdoor fan shall be of the direct-driven propeller type, discharge air vertically, have aluminum blades riveted to cor- rosion resistant steel spider bracket and shall be statically balanced for smooth operation. The outdoor fan motor shall be totally enclosed with permanently lubricated bearings and internally protected against overload conditions.

REFRIGERANT COMPONENTS

Compressors:

a.Shall be fully hermetic type, direct drive, internally protected with internal high-pressure relief and over temperature protection. The hermetic motor shall be suction gas cooled and have a voltage range of + or - 10% of the unit nameplate voltage.

b.Shall have internal isolation and sound muffling to minimize vibration and noise, and be externally iso- lated on a dedicated, independent mounting.

Coils:

a.Evaporator and condenser coils shall have alumi- num plate fins mechanically bonded to seamless internally enhanced copper tubes with all joints brazed.

b.Evaporator coil shall be of the direct expansion, blow through design, while condenser coil shall be draw through design.

Refrigerant Circuit and Refrigerant Safety Components:

a. Shall include independent thermal expansion devices (TXV).

b.Shall include filter/strainer to eliminate any foreign matter.

Unitary Products Group

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Contents Featuring DescriptionTable of Contents Standard FEATURES/BENEFITS FIELD-INSTALLED Accessories 036-21366-007-A-1205 Model DNP Unit Component Location Physical DataMBH Burners Range Ratings COOLING/GAS HeatingNET Power Sensible CAPACITY1 Temperature of AIR on Condenser CoilDNP024 Cooling Capacities 2 TON EvaporatorDNP024 Cooling Capacities 2 TON CONT’D AIR on Temperature of AIR on Condenser CoilTemperature AIR on Evaporator Coil DNP030 Cooling Capacities 2-1/2 TONAIR on WB F DNP036 Cooling Capacities 3 TON AIR onCondenser Coil DNP042 Cooling Capacities 3-1/2 TON DNP048 Cooling Capacities 4 TON WB F Condenser Coil DNP060 Cooling Capacities 5 TONSPD TWO TON AIR PerformanceSide Supply AIR Blower Performance 208/230 VOLTS1 Bottom Supply AIR Blower Performance 208/230 VOLTS1 Additional Static Pressure Resistance 3-1/2, 4 and 5 TON Additional Static Pressure Resistance 2, 2-1/2, 3 TONRESISTANCE, IWG WET Evaporator Coil ECONOMIZER1 Filter Frame KITPower Wiring Field Diagram Electrical Data Unit Minimum CLEARANCES1 Unit Dimensions FrontKnockout Typical Slab on Ground Installation Unit Shipping Operating WeightEconomizer Roof SizeRoof Curb DIMENSIONS1 Typical Wiring Diagram D*NP 024 208/230-1-60 Power Supply Power Supply Typical Wiring Diagram D*NPTypical Wiring Diagram D*NP 060 208/230-1-60 Power Supply Wiring Typical Wiring Diagram D*NP 060 208/230-3-60 Power Supply Unitary Products Group Typical Wiring Diagram D*NP 060 460/575-3-60 Power Supply Typical Wiring Diagram Notes Description GeneralUnit Operating Characteristics 036-21366-007-A-1205 036-21366-007-A-1205