York DM 072 warranty Unit Controls

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036-21502-003-A-1105

internally enhanced copper tubes with all joints

brazed. Special Phenolic coating shall be available as a factory option.

b.Evaporator and Condenser coils shall be of the direct expansion, draw-thru, design.

Refrigerant Circuit and Refrigerant Safety Components shall include:

a. Independent fixed-orifice expansion devices.

b.Filter drier/strainer to eliminate any moisture or for- eign matter.

c.Accessible service gage connections on both suc- tion and liquid lines to charge, evacuate, and mea- sure refrigerant pressure during any necessary servicing or troubleshooting without losing charge.

d.The refrigeration system shall provide at least 15°F of sub-cooling at design conditions.

UNIT CONTROLS

a. Unit shall be complete with self-contained low-volt- age control circuit protected by a resetable circuit breaker on the 24-volt transformer side.

b.Unit shall incorporate a lockout circuit which pro- vides reset capability at the space thermostat or base unit, should any of the following standard safety devices trip and shut off compressor.

c.Loss-of-charge/Low-pressure switch.

d.High-pressure switch.

e.Freeze-protection thermostat, evaporator coil.

f. If any of the above safety devices trip, a LED (light- emitting diode) indicator shall flash a diagnostic code that indicates which safety switch has tripped.

g. Unit shall incorporate “AUTO RESET” compressor over temperature, over current protection.

h.Unit shall operate with conventional thermostat designs and have a low voltage terminal strip for easy hook-up.

i.Unit control board shall have on-board diagnostics and fault code display.

j.Standard controls shall include anti-short cycle and low voltage protection, and permit cooling operation down to 0°F.

k. Control board shall monitor each refrigerant safety switch independently.

l.Control board shall retain last 5 fault codes in non volatile memory, which will not be lost in the event of a power loss.

GAS HEATING SECTION (SINGLE OR 2 STAGE)

Shall be designed with induced draft combustion with post purge logic, energy saving direct spark ignition, and redun-

dant main gas valve. Venter wheel shall be constructed of stainless steel for corrosion resistance. The heat exchanger shall be of the tubular type, constructed of T1-40 aluminized steel for corrosion resistance and allowing minimum mixed air entering temperature of 25°F. Burners shall be of the inshot type, constructed of aluminum coated steel and con- tain air mixture adjustments. All gas piping shall enter the unit cabinet at a single location through either the side or curb, without any field modifications. Integrated control boards shall provide timed control of evaporator fan functioning and burner ignition. Heating section shall be provided with the fol- lowing minimum protection:

a. Primary and auxiliary high-temperature limit switches.

b.Induced draft motor speed sensor.

c.Flame roll out switch (manual reset).

d.Flame proving controls.

ELECTRIC HEATING SECTION

An electric heating section, with nickel chromium elements, shall be provided in a range of 5 thru 30 KW, offering two stages of capacity - 16 KW and above on 208/230 volt heat- ers and 20 KW and above on 460 and 575 volt heaters. The heating section shall have a primary limit control(s) and auto- matic reset to prevent the heating element system from oper- ating at an excessive temperature. The heating section assembly shall slide out of the unit for easy maintenance and service. Units with Electric Heating shall be wired for a single point power supply with branch circuit fusing (where required).

UNIT OPERATING CHARACTERISTICS

a. Unit shall be capable of starting and running at 125°F outdoor temperature, exceeding maximum load criteria of ARI Standard 210/240. The compres- sor, with standard controls, shall be capable of oper- ation down to 0°F outdoor temperature. Unit shall be provided with fan time delay to prevent cold air delivery before heat exchanger warms up (Gas heat only).

ELECTRICAL REQUIREMENTS

All unit power wiring shall enter unit cabinet at a single factory provided location and be capable of side or bottom entry, to minimize roof penetrations and avoid unit field modifications. Separate side and bottom openings shall be provided for the control wiring.

STANDARD LIMITED WARRANTIES

•Compressor 5 Years

•Heat Exchanger 10 Years

•Electric Heat Element 5 Years

•Other Parts 1 Year

Unitary Products Group

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Contents Description WarrantyTable of Contents Product Nomenclature Product Nomenclature Johnson UNT Controller, DFS, APS, SS Drain Pan Technicoat Condenser Coil & Dirty Filter Switch Hinged Filter Door & Toolless Access Cabinet 036-21502-003-A-1105 Novar ETC-3 Controller, DFS, APS, SS Drain Pan Hinged Filter Door & Toolless Access Cabinet Features Unit Cutaway FACTORY-INSTALLED OptionsHinged Filter DOOR/TOOLLESS Blower FIELD-INSTALLED Accessories036-21502-003-A-1105 Stage GAS Heat Ratings Sound Power RATING1Capacity Ratings ARI 210/2401 GAS Heat RATINGS1DM036 Cooling Capacities 3 TON DM048 Cooling Capacities 4 TON DM060 Cooling Capacities 5 TON DM072 Cooling Capacities 6 TON 31,2 036-21502-003-A-1105 036-21502-003-A-1105 036-21502-003-A-1105 Belt Drive Blower Motor and Drive Data Voltage Heater Size Nominal KW Tons Static ResistancesElectric Heater CFM Limitations Minimum Supply AIR CFMRLA LRA Voltage Motor Outlet Brkr 1 Size Tonnage Outlet Brkr 1 Size Tonnage 036-21502-003-A-1105 036-21502-003-A-1105 036-21502-003-A-1105 036-21502-003-A-1105 036-21502-003-A-1105 Electric Heat Correction Factors Physical DataVoltage LIMITATIONS1 Typical Field Power & Control Wiring Typical Power WiringUnit Dimensions 3 6 TON COOLING/GAS Heat Front View Unit with Economizer Rainhood Hole Opening Size DIA Used for Minimum ClearancesLocation Clearance Typical Applications TON DimensionCenter of Gravity Unit TotalOptions Operating Weights LBSModel Size TON BasicGeneral Guide SpecificationsDescription Unit Controls Manual Outdoor AIR Damper

DM 072 specifications

The York DM 072 is a high-performance packaged air conditioning unit designed for commercial and industrial applications. Engineered for efficiency and reliability, the DM 072 is part of York's broader initiative to provide advanced climate control solutions that meet the demands of modern buildings.

One of the standout features of the York DM 072 is its advanced energy efficiency. It employs the latest in variable speed technology, which allows the unit to adjust its output according to the cooling load. This capability significantly reduces energy consumption, leading to lower operational costs, and it aligns with global efforts to promote sustainable energy use.

In terms of design, the York DM 072 is built with a robust aluminum cabinet that provides excellent corrosion resistance. This is essential for units installed in harsh environments, ensuring a long lifespan and reduced maintenance needs. The compact design also allows for easy installation in tight spaces, making it a versatile choice for various building configurations.

The unit is equipped with a high-efficiency scroll compressor, which enhances its cooling capabilities while minimizing noise levels. This is particularly beneficial for commercial office buildings where noise reduction can contribute to a more comfortable working environment. Additionally, the DM 072 features a sophisticated refrigerant management system that optimizes the refrigeration cycle, ensuring consistent performance and maximizing system efficiency.

Another notable aspect of the York DM 072 is its advanced control system. With smart connectivity options, users can monitor and control the unit remotely. This feature not only improves convenience but also aids in proactive maintenance by providing real-time performance data, helping facility managers to identify and rectify issues before they escalate.

The DM 072 also incorporates an effective filtration system designed to improve indoor air quality. With multi-stage filtration, it captures dust, allergens, and other particulates, promoting a healthier environment for occupants.

With a combination of efficiency, durability, advanced technology, and environmental considerations, the York DM 072 stands out as a leading choice in the commercial HVAC market. Whether for new constructions or retrofitting existing systems, it offers reliable performance and environmental stewardship, making it a top contender among packaged air conditioning units.
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