York DM 240, DM 300, DM 180 warranty Guide Specifications, General, Description

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262259-YTG-B-0107

GUIDE SPECIFICATIONS

GENERAL

Units shall be manufactured by York International Unitary Products Group in an ISO 9001 certified facility.

York's Sunline 2000™ units are convertible single package units. All models have dual independent refrigerant circuits for efficient part load operation and maximum comfort control. Although the units are primarily designed for curb mounting on a roof, they can also be slab-mounted at ground level or set on steel beams above a finished roof. Cooling only, cool- ing with gas heat and cooling with electric heat models are available with a wide variety of factory-mounted options and field-installed accessories to make them suitable for almost every application. All units are self-contained and assembled on full perimeter base rails with holes in the four corners for overhead rigging. Every unit is completely piped, wired, charged and tested at the factory to simplify the field installa- tion and to provide years of dependable operation. All models (including those with an economizer) are suitable for either bottom or horizontal duct connections. Models with power exhaust are suitable for bottom duct connections only. For bottom duct, remove the sheet metal panels from the supply and return air openings through the base of the unit. For hori- zontal duct, replace the supply and return air panels on the rear of the unit with a side duct flange accessory. All supply air blowers are equipped with a belt drive that can be adjusted to meet the exact requirements of the job.

Each unit shall have 2 condenser fan motors. A high speed drive accessory is available for applications with a higher CFM and/or static pressure requirement. All compressors include crankcase heat and internal pressure relief. Every refrigerant circuit includes an expansion valve, a liquid line fil- ter-drier, a discharge line high pressure switch and a suction line with a freezestat and low pressure/loss of charge switch. The unit control circuit includes a 75 VA transformer, a 24-volt circuit breaker and a relay board with two compressor lockout circuits, a terminal strip for thermostat wiring, plus an addi- tional set of pin connectors to simplify the interface of addi- tional field controls. All units have long lasting powder paint cabinets with 1000 hour salt spray test approval under ASTM-B117 procedures. All models are CSA approved. All models include a 1-year limited warranty on the complete unit. Compressors and electric heater elements carry an additional 4-year warranty. Aluminized steel tubular heat exchangers carry an additional 9-year warranty.

DESCRIPTION

Units shall be factory-assembled, single packaged, DM***N Electric Cooling/Gas Heat, DM***C/E Electric Cooling/ Optional Electric Heat, designed for outdoor mounted instal- lation. The 15, 20 and 25 ton units shall have minimum EER ratings of 8.5.

They shall have built-in field convertible duct connections for down discharge supply/return or horizontal discharge supply/ return, and be available with factory installed options or field installed accessories. The units shall be factory wired, piped, charged with R-22 refrigerant and factory tested prior to ship-

ment. All unit wiring shall be both numbered and color coded. All units shall be manufactured in a facility certified to ISO 9001 standards and the cooling performance shall be rated in accordance with DOE and ARI test procedures. Units shall be CGA listed, classified to ANSIZ21.47 standards, 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. Indoor blower section shall be insulated with a min- imum 1/2" thick insulation, coated on the airside. Aluminum foil faced insulation shall be used in the furnace compartment and be fastened with ridged fasteners to prevent insulation from entering the air stream. Cabinet panels shall be "large" size, easily removable for servicing and maintenance. Full perimeter base rails shall be provided to assure reliable transit of equipment, overhead rigging and proper sealing on roof curb applications. Disposable 2" filters shall be furnished and be accessible through a removable access door, sealed air- tight. Units filter track shall be designed to accommodate either 2" or 4" filters. Fan performance measuring ports shall be provided on the outside of the cabinet to allow accurate air measurements of evaporator fan performance without remov- ing panels or creating air by-pass of the coils. Condensate pan shall be internally sloped and conform to ASHRAE 62-89 self-draining standards. Condensate connection shall be a minimum of 1" I.D. female and be a ridged mount connection. Unit shall incorporate a fixed outdoor air damper with an out- door air intake opening covered with a bird screen and a rain hood painted to match the exterior of the unit.

INDOOR (EVAPORATOR) FAN ASSEMBLY

Fan shall be a belt drive assembly and include an adjustable- pitch motor pulley. Job site selected (B.H.P.) brake horse- power shall not exceed the motors nameplate horsepower rating, plus the service factor. Units shall be designed not to operate above service factor. 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.

A variable air volume (VAV) option using a variable frequency drive (VFD) is available for applications requiring a constant supply duct static pressure. Units equipped for VAV shall be controlled by a duct pressure transducer with a 0 - 5” WC pressure range. The pressure transducer shall provide a 0 - 5 VDC output signal to a VAV control board which, in turn shall provide a 2 - 10 VDC speed reference signal to the VFD. Units equipped with VFD’s shall have factory-installed man- ual bypass as an option.

OUTDOOR (CONDENSER) FAN ASSEMBLY

The outdoor fans shall be of the direct-driven propeller type, discharge air vertically, have aluminum blades riveted to cor- rosion resistant steel spider brackets and shall be dynami- cally balanced for smooth operation. The 2 outdoor fan motors shall be totally enclosed with permanently lubricated

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Contents Description Technical GuideTable of Contents Ton Sunline 2000 Model Number Nomenclature Product NomenclatureFeatures Unit Cutaway FACTORY-INSTALLED OptionsFor 5-hp motor applications FIELD-INSTALLED Accessories YTG-B-0107 Capacity Ratings ARI Sound Power RATING1GAS Heat Ratiings CAP.1 INPUT2 CFM MBH DM 180 Cooling Capacities 15 TONTotal Power Sensible CAPACITY, MBH DM 240 Cooling Capacities 20 TON 78.1 DM 300 Cooling Capacities 25 TON 49.2 AIR Temp Altitude Feet Altitude Correction FactorsALTITUDE/TEMPERATURE Conversion Factor Motor CFM Pulley Speed 6000 7000 8000 9000 9400 965 980 1025 1065 1125 1170 870 900 930 950 980 995 1015 7500 8750 10000 11250 12500 Blower Motor and Drive Data Power Exhaust PerformanceStatic RESISTANCES1 Compressors Heater Option MIN 300 DM 180, 240 Electrical Data with Powered Convenience Outlet None 139.3 175 E18 13.5 37.5 Physical Data DM Voltage LIMITATIONS1Electric Heat Correction Factors Supply FAN VFD WEIGHTS, in LBSFront View Rear View Dimensions Minimum Clearances Unit Dimensions DM180, 240 & 300 RainhoodCenter of Gravity Four and SIX Point Loads Unit Roof Curb Dimensions Typical Simplicity Control Wiring Diagram General Guide SpecificationsDescription Refrigerant Components Other Factory Installed Options YTG-B-0107

DM 180, DM 240, DM 300 specifications

The York DM series, including the DM 240, DM 180, and DM 300, represents a blend of efficiency, advanced technology, and reliability in the world of HVAC solutions. Designed for commercial and industrial applications, these models cater to diverse temperature control needs while maintaining energy efficiency.

The York DM 240 is engineered to provide powerful cooling and heating performance in a compact unit. It features a robust design that incorporates high-efficiency compressors and environmentally friendly refrigerants. The DM 240 boasts advanced microprocessor controls, allowing for precise temperature regulation and operational monitoring. This model is particularly known for its low noise levels, making it suitable for areas requiring a quieter environment.

The DM 180 model is similarly designed but tailored for smaller applications while still delivering exceptional energy performance. Enhanced with variable-speed fans, the DM 180 can adjust its airflow based on real-time demand, ensuring optimal comfort and reduced energy consumption. This unit also includes advanced diagnostic tools that streamline maintenance and troubleshooting, thus minimizing downtime.

The DM 300 stands out with its increased capacity and enhanced features for larger facilities. Known for its superior cooling efficiency, the DM 300 utilizes advanced inverter technology. This allows the system to vary the speed of the compressor and fans, resulting in significant energy savings and improved load matching. Additionally, the DM 300 incorporates smart connectivity features that enable remote monitoring and control via smartphone or PC, facilitating effortless management of your HVAC system.

All three models in the York DM series incorporate cutting-edge technologies, including enhanced filtration systems that improve indoor air quality by reducing airborne particles. These systems are designed to work seamlessly with modern building management systems, enabling integration and optimization of overall HVAC operations.

Durability is a noteworthy characteristic of the York DM series, as each unit is built with high-quality materials to withstand demanding environments. With easy access to components, maintenance is simplified, helping to extend the lifespan of the equipment.

In summary, the York DM 240, DM 180, and DM 300 models exemplify modern HVAC technology, combining efficiency, advanced features, and user-friendly interfaces for robust climate control solutions in any commercial or industrial setting.
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