Electrical Requirements

controls, shall be capable of operation 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).

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

OPTIONAL OUTDOOR AIR (Shall be made available by either/or):

•ELECTRONIC ENTHALPY AUTOMATIC ECONO- MIZER - Outdoor and return air dampers that are inter- locked and positioned by a fully-modulating, spring- return damper actuator. The maximum leakage rate for the outdoor air intake dampers shall not exceed 2% when dampers are fully closed and operating against a pressure differential of 0.5 IWG. A unit-mounted potenti- ometer shall be provided to adjust the outdoor and return air damper assembly to take in CFM of outdoor air to meet the minimum ventilation requirement of the condi- tioned space during normal operation. During econo- mizer operation, a mixed-air temperature control shall modulate the outdoor and return air damper assembly to prevent the supply air temperature from dropping below 55°F. Changeover from compressor to economizer oper- ation shall be provided by an integral electronic enthalpy control that feeds input into the basic module. The out- door intake opening shall be covered with a rain hood that matches the exterior of the unit. Water eliminator/fil- ters shall be provided. Simultaneous economizer/com- pressor operation is also possible. Dampers shall fully close on power loss.

•BAS-READY ECONOMIZER - Outdoor and return air dampers that are interlocked and positioned by a fully- modulating, spring return damper actuator. The maxi- mum leakage rate for the outdoor air intake dampers shall not exceed 2% when dampers are fully closed and operating against a pressure differential of 0.5 IWG.

For units with optional VAV or Simplicity® Intelli-Com- fort™ control, free-cooling shall be available while the outdoor dry bulb temperature (OAT) remains below a programmable set-point of the controller. Field-installed humidity sensors for either outdoor air or outdoor & return air streams are available to provide free-cooling based on single-enthalpy or dual-enthalpy configura- tions, respectively. If free-cooling is available, a call for

262260-YTG-E-1008

cooling shall modulate the economizer in order to main- tain a supply air temperature (SAT) programmable set- point. With the use of a field-installed indoor air quality sensor, the controller shall provide Demand Ventilation by modulating the economizer dampers to allow more outside airflow upon detection of elevated indoor CO2 concentrations above a programmable set-point. With an additional field-installed outdoor air quality sensor, Differ- ential Demand Ventilation shall be provided.

The outdoor intake opening shall be covered with a rain hood that matches the exterior of the unit. Water elimina- tor/filters shall be provided.

Simultaneous economizer/compressor operation is also possible. Dampers shall fully close on power loss.

•MOTORIZED OUTDOOR AIR DAMPERS - Outdoor and return air dampers that are interlocked and positioned by a 2-position,spring-return damper actuator. The maxi- mum leakage rate for the outdoor air intake dampers shall not exceed 2% when dampers are fully closed and operat- ing against a pressure differential of 0.5 IWG. A unit- mounted potentiometer shall be provided to adjust the outdoor and return air damper assembly to take in the design CFM of outdoor air to meet the ventilation require- ments of the conditioned space during normal operation. Whenever the indoor fan motor is energized, the dampers open up to one of two pre-selected positions - regardless of the outdoor air enthalpy. Dampers return to the fully closed position when the indoor fan motor is de-ener- gized. Dampers shall fully close on power loss.

OTHER PRE-ENGINEERED ACCESSORIES AVAILABLE

•ROOF CURB - 14" high, full perimeter curb with wood nailer (shipped knocked-down).

•100% BAROMETRIC RELIEF DAMPER - Contains a rain hood, air inlet screen, exhaust damper and mount- ing hardware. Used to relieve internal air pressure through the unit.

•PROPANE CONVERSION KIT - Contains new orifices and gas valve parts to convert from natural to L.P. gas. One per unit required.

•HIGH ALTITUDE - NATURAL GAS - Contains orifices required for applications between 2000 and 6000 feet altitude.

•HIGH ALTITUDE - PROPANE GAS - Contains orifices required for applications between 2000 and 6000 feet altitude. Must be used with propane conversion kit.

•BURGLAR BARS - Designed to work with above roof curbs, depending on unit model. Fits duct openings of curb supply and return air openings.

•SIDE DUCT FLANGE - Supply and return air duct flanges for side duct applications. Do not use on units with power exhaust.

Johnson Controls Unitary Products

DH 240, DH 300, DH 180, DH 210 specifications

York International is known for its innovative and efficient HVAC systems, particularly their range of air conditioning units including the York DH series, comprising models DH 240, DH 300, DH 180, and DH 210. These units reflect state-of-the-art technology designed for optimal performance, energy efficiency, and reliability in diverse applications.

The York DH 240 is a versatile unit engineered for medium to large spaces. It features a compact design while delivering robust cooling performance. The incorporation of advanced inverter technology allows for precise temperature control and enhanced energy savings. Additionally, this model boasts an intelligent control system that ensures optimal operation based on real-time load conditions, further conserving energy.

The DH 300 model is designed for larger installations and offers unmatched cooling capacity. Its high-efficiency scroll compressors and variable speed fans minimize energy consumption, making it a wise choice for environmentally conscious businesses. Moreover, this unit includes a sophisticated microprocessor control system that facilitates monitoring and maintenance, ensuring peak operational efficiency throughout its lifespan.

The York DH 180 is tailored for smaller commercial applications where space is a premium. Its lightweight, low-profile design allows for easy installation while not compromising on performance. The DH 180 incorporates advanced filtration technology, ensuring high indoor air quality. With user-friendly digital controls, this unit can be customized to meet specific climate requirements.

Finally, the DH 210 offers a balanced solution for mid-range cooling needs with features that promote sustainability and efficiency. The unit is equipped with ecologically friendly refrigerants that comply with the latest environmental regulations. The incorporation of multi-stage filtration in the DH 210 ensures clean air delivery while reducing operational costs due to improved airflow design.

Collectively, the York DH series distinguishes itself through a commitment to quality, efficiency, and innovation. Each model, whether DH 240, DH 300, DH 180, or DH 210, is designed with advanced technology that prioritizes user experience and environmental sustainability. York's dedication to robust engineering ensures that these models not only meet but exceed the demands of modern commercial air conditioning needs, providing reliable solutions for diverse operational challenges.

York DH 240, DH 210, DH 180, DH 300 warranty Electrical Requirements

Models: DH 240 DH 300 DH 180 DH 210