Unit Controls, GAS Heating Section Single or 2 Stage

Coils:

a.Evaporator and condenser coils shall have alumi- num plate fins mechanically bonded to seamless 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 or thermally operated 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.Unit shall incorporate “AUTO RESET” compressor over temperature, over current protection.

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

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

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

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

k.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

343615-YTG-A-0807

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.

d.Flame proving controls.

e.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.

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 heaters and 20 KW and above on 460 and 575 volt heaters. The heat- ing section shall have a primary limit control(s) and automatic reset to prevent the heating element system from operating 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 crite- ria of ARI Standard 210/240. The compressor, with standard controls, shall be capable of operation down to 0°F outdoor temperature. Unit shall be pro- vided 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

32	Unitary Products Group

DY 036 specifications

The York DY 036 is a prominent model in the realm of air conditioning systems, particularly known for its efficiency and advanced features. Designed for both residential and commercial applications, the DY 036 stands out due to its exceptional performance and energy savings.

One of the primary features of the York DY 036 is its energy efficiency. With a Seasonal Energy Efficiency Ratio (SEER) rating that exceeds industry standards, this air conditioning unit is engineered to deliver cooling power while minimizing electricity consumption. This makes it an ideal choice for consumers looking to reduce their energy bills without sacrificing comfort.

Equipped with advanced inverter technology, the DY 036 adjusts its cooling output in response to the ambient temperature. This not only enhances comfort by maintaining a consistent indoor climate but also contributes to lower energy use. The inverter system allows the unit to operate at a variable speed, preventing the frequent on-and-off cycling associated with traditional models, which can be a significant energy drain.

Another compelling characteristic of the York DY 036 is its quiet operation. With sound levels kept to a minimum, this model is perfect for installation in environments where noise disturbances are a concern, such as bedrooms or office settings. The use of innovative sound-dampening technology ensures that the system runs unobtrusively, providing comfort without disruptive noise.

The DY 036 also incorporates an advanced filtration system that improves indoor air quality. Its multi-stage filtration process captures dust, allergens, and other pollutants, ensuring a healthier breathing environment for occupants. Regular maintenance is also streamlined with easy-access panels, allowing homeowners and technicians to perform servicing without hassle.

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In summary, the York DY 036 is a cutting-edge air conditioning model that provides energy efficiency, quiet operation, advanced filtration, and durable construction. Whether for residential or commercial use, it represents a blend of comfort, technology, and reliability that meets the demands of modern climate control.