Serviceability features: Hinged access doors provide easy access to the inner components. Finger-Save electrical connections and components. Optional 4-, 7-, and 10-inch touch-screen equipment interface.

Noise-reduction features: Two-inch double-wall foam insulated construction.

IAQ equipment supported: Provides fresh air ventilation.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The all-new 1 Series cabinet features an even more compact footprint with new capacities and efficiencies. Additionally, the compact 1 Series small footprint is a drop-in for many competitor footprints. For even more flexibility, the addition of an energy recovery wheel and exhaust does not change the curb footprint of the cabinet. The AK1 also comes with a variable-speed compressor and an option for a horizontal supply and return.

Warranty information: One-year all parts, five-year compressor. Optional extended warranties available.

Special installation requirements: Manufacturer did not specify.

Website: www.addison-hvac.com

Serviceability features: Hinged access doors provide easy access to the inner components. Finger-Save electrical connections and components. Optional 4-, 7-, and 10-inch touch-screen equipment interface.

Noise-reduction features: Two-inch double-wall foam insulated construction.

IAQ equipment supported: Provides fresh air ventilation.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The new desiccant option for the PR Series adds increased flexibility for applications that require ultra-low dewpoint air. Precise leaving air temperature and dewpoint control. Complete modulation operation from the speed of the desiccant wheel, to regeneration air, to compressor and supply air blower. Typical applications include retail grocery, laboratories, process control, and many others.

Warranty information: One-year all parts, five-year compressor. Optional extended warranties available.

Special installation requirements: Manufacturer did not specify.

Website: www.addison-hvac.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 79 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.airquestcomfort.com

Serviceability features: Contractors can reference up to seven days of logged data, alarm history, and service reports stored by the Intelli-Guide controller. This allows the ability to quickly and accurately determine when and where errors may have occurred, even if they didn’t show up while a tech was on site. Repairs are completed faster, and it’s no surprise that resolving issues correctly the first time cuts return visits and means more uptime for building owners and occupants.

Noise-reduction features: Manufacturer did not specify.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Introducing a hassle-free way to put control in the palm of the hand. With the Intelli-Guide controller, it is possible to quickly install multiple units and diagnose right from a smartphone, using Allied’s Intelli-Guide app, improving installation and troubleshooting. Intelli-Guide streamlines projects; saves configurations for multi-unit projects, stores data for simplified diagnostics and repairs, and more. With a decade of real-world testing, Intelli-Guide’s proven technology was designed with contractor success in mind.

Warranty information: Fifteen years on stainless steel gas heat exchangers; 10 years on aluminized gas heat exchanges; five years on compressors; three years on Eco-Last coil assemblies; and one year on other covered parts.

Special installation requirements: Intelli-Guide gives contractors freedom like never before. Easily commission and diagnose from 25 feet away, keeping techs out of the elements while reducing back-and-forth trips from the rooftop. It is also possible to save configurations to reuse on multiple units, dramatically speeding up large installations, while ensuring quality and accuracy on projects. All the utility and duct connections are in the same places on the K-Series.

Website: www.allied-commercial.com

Serviceability features: With Right-Fit compatibility, Z-Series units feature the most popular footprint in the industry, which eliminates the need for an adapter curb in many replacement jobs and allows installers to utilize existing connections. This means easier installation and savings of up to $1,500 on the job cost. In addition, the Z-Series units are lighter than other units, which not only make the units easier to lift and move, but eliminates additional structural engineering costs.

Noise-reduction features: Manufacturer did not specify.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Z-Series saves time and money on every install. The footprint that fits. Few things affect the time, effort and money involved in a job like curb compatibility. When a unit installs without replacing the adapter curb, when connections don’t have to be rerouted, the savings add up. Best of all, the lack of an adapter curb not only saves customers an average of $1,500 in installation costs, it also makes contractors more competitive in bidding.

Warranty information: Fifteen years on stainless steel gas heat exchangers; 10 years on aluminized gas heat exchanges; five years on compressors; three years on Eco-Last coil assemblies; and one year on other covered parts.

Special installation requirements: Manufacturer did not specify.

Website: www.allied-commercial.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 79 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.arcoaire.com

Serviceability features: Hinged service door, roll-out condenser fan assembly, PLC diagnostics for troubleshooting, exterior service port access, dirty filter light indicator, easy-to-clean condenser coils, Modbus interface, and remote access web page, Bard Link. All service and maintenance performed outside the building, consuming no interior floor space.

Noise-reduction features: ECM variable indoor and outdoor fan.

IAQ equipment supported: Up to MERV 13 indoor air filters. Can control external humidifier, emergency shutoff, and emergency ventilation.

Thermostat compatibility: Requires a PLC controller.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: A multi-stage, high-capacity, sensible cooling air conditioner designed to be a slide-in replacement for retrofit applications. AHRI certified and meets state and national codes. Operates remotely via Bard Link technology, leverages favorable weather conditions with optional free cooling economizer, and incorporates electric reheat dehumidification as an optional feature. Bard controller can control up to 14 wall-mount units.

Warranty information: Five-year parts refrigeration components.

Special installation requirements: Manufacturer did not specify.

Website: www.bardhvac.com

Serviceability features: Easy filter access; easy-to-access service ports; indoor color touchscreen interface; easy-to-clean coils; and diagnostic service display.

Noise-reduction features: Modulating compressor and fan operation; compressor sound cover; indoor sound reduction accessories; and optional outdoor sound reduction curb with rubber vibration isolation.

IAQ equipment supported: Built-in ventilation options include economizer outdoor air intake and energy recovery ventilator; dehumidification option; up to MERV 13 filter; UV-C light option; and BPI option.

Thermostat compatibility: Requires a special thermostat.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: This heat pump is an energy-efficient self-contained system designed to offer maximum indoor comfort with consistent temperatures. True capacity control is based on cooling and heating demand, providing a comfortable, quiet, and energy-efficient indoor environment for occupants. Features include an inverter compressor, ECM indoor and outdoor motors, indoor color touchscreen interface, and sound reduction accessories.

Warranty information: Five-year warranty on compressor and sealed refrigeration components. One-year warranty on other functional components.

Special installation requirements: Manufacturer did not specify.

Website: www.bardhvac.com

Serviceability features: This heat pump offers easy access to its compressor and internal components via a swinging electrical box. As a vertical unit with a slide-out blower, the CP Series boasts improved air coil serviceability for hassle-free maintenance.

Noise-reduction features: The CP Series performs as low as 53 dBA.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The CP Series heat pump merges high performance with energy efficiency for commercial and industrial buildings. Utilizing two-speed compressor technology, the unit promises more precise and consistent temperature control, avoiding spikes in energy use or lapses in comfort. With a swinging electrical box, slide-out blower, and improved air coil serviceability, installation and maintenance is a breeze. The CP Series is equipped with R-454B refrigerant, meeting the criteria for a low-GWP A2L refrigerant.

Warranty information: The system has a five-year compressor warranty, as well as a one-year warranty on parts.

Special installation requirements: Please see the manufacturer manual and technical documentation for installation requirements and instructions.

Website: www.bosch-homecomfort.com/us/en/residential/home

Serviceability features: The ESC-Series units offer easy serviceability with hinged access doors, pre-wired electrical connections, and standardized parts for quick replacement. Features include auto-drain with freeze protection, low-water cutoff switch, and belt tension adjustments. A 24-hour timer automates maintenance, while large service clearances simplify access. Fan alignment, filter monitoring, and lubrication points ensure efficient operation. Designed for quick diagnostics and preventive maintenance, the ESC-Series minimizes downtime and enhances reliability.

Noise-reduction features: The fan and motor are mounted on common base with spring isolators and flexible connection to fan discharge. Application of special requirements available upon request. All units are insulated with 2-inch mineral wool insulation. Standard galvanized interior and exterior panels. Stainless steel optional.

IAQ equipment supported: The ESC-Series units enhance IAQ with high-efficiency filtration, 100% outside air intake, and evaporative cooling for temperature and humidity control. An optional mixing box allows for recirculation and fresh air blending, while energy recovery options improve efficiency by reclaiming exhaust air energy. Proper drainage prevents mold growth, and optimized ventilation design reduces indoor pollutants, ensuring fresher, healthier air.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts., Shares replacement parts with other models.

Additional features: The ESC-Series units offer evaporative cooling with optional mechanical cooling coils, ensuring precise temperature control. They provide 100% outside air ventilation for improved IAQ and feature auto-drain with freeze protection to prevent winter damage. Energy recovery and mixing box options enhance efficiency by reclaiming exhaust air energy and blending fresh/recirculated air. Designed for high performance and reliability, these units excel in cooling, ventilation, and energy savings across various applications.

Warranty information: Full two-year parts warranty. Indirect-evaporative exchangers are warrantied for five years. Warranties on purchased parts such as electric motors, pumps, indirect-fired heat exchangers, and coils are limited to the terms of warranty extended by the supplier.

Special installation requirements: The ESC-Series units require level installation and clearance for maintenance. Proper duct, electrical, and gas connections must follow local codes. An auto-drain system is recommended in cold climates for freeze protection. Ensuring correct placement and ventilation optimizes performance, while a secure, level foundation supports drainage and airflow efficiency.

Website: www.cambridgeair.com

Serviceability features: Quick chassis replacement, as complete refrigeration portion of the system can be swapped out in minutes. Service-friendly removal and replacement installation can be done with common hand tools by one technician. Minimal disruption to occupants, and comfort needs are restored quickly.

Noise-reduction features: Double isolation of compressor, with sound-attenuating compressor blanket applied to the compressor. All sheet metal surrounding the compressor will have high density sound-attenuating material applied.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Does not share replacement parts with other models.

Additional features: Multiple replacement options to support needs commonly encountered in the field. Two voltage options. Several control options. Auto flow regulators, motorized water valves, modulating water valves, and internal water pumps are the most popular of the water options. Copper heat exchangers with or without insulation.

Warranty information: Five-year compressor, one-year parts. Some limitations apply; see printed warranty for details.

Special installation requirements: Service-friendly removal and replacement installation can be done with common hand tools; one technician can do the job.

Website: www.marsdelivers.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 79 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.comfortmaker.com

Serviceability features: The Magnitude WME-D’s oil-free, centrifugal design with magnetic bearings eliminates wear surfaces, enhancing reliability and longevity. The variable-frequency drive extends the motor life by reducing mechanical and thermal stresses, while offering the smallest footprint among similar R-515B chillers, improving floor space and serviceability. Microtech controls integrate with building automation systems for chilled or hot water setpoint control, while SiteLine provides real-time analytics to optimize energy use, improve air quality, and support sustainability efforts.

Noise-reduction features: Magnitude WME-D utilizes magnetic bearings, which offer an inherently quiet design. The sound levels of the chiller are tested in accordance with AHRI Standard 575 and are as quiet as 76 dBA at full-load capacity. WME-D achieves even quieter operation at reduced loads and non-standard conditions.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: When communication module is selected, it's compatible with BACnet MS/TP, BACnet IP and Modbus.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The WME-D uses advanced two-stage compressor technology to deliver up to 40% more energy savings than traditional fixed-speed compressors. Daikin’s power trip resilience technology, RideThrough, enables this chiller to maintain operation during brief power loss events, and RapidRestore ensures industry-leading startup and fast-loading times. WME-D also has heating mode controlling condenser leaving water up to 126°F, which can be utilized in heat recovery or heat pump applications.

Warranty information: Warranties are offered for refrigerant, parts, and labor, and customers can also purchase extended warranties for these components.

Special installation requirements: Magnitude WME-D has standard installation requirements but can also offer flexibility through factory knock-down disassembly. This option allows the unit to be broken down into smaller pieces, facilitating easier transportation to the installation site. This also simplifies the process of maneuvering the unit into tight or challenging spaces, reducing overall installation time and effort. This is particularly beneficial for retrofit or renovation projects where space and access constraints may be a concern.

Website: www.daikinapplied.com

Serviceability features: DCSA is designed with serviceability in mind. It features separated high- and low-voltage components to ensure technician safety during maintenance, and the refrigerant charging ports and compressor isolation valves simplify servicing and recharging. The hinged access control panel allows access to internal components, making routine maintenance and repairs easier and more efficient.

Noise-reduction features: Optional quiet condenser fans reduce operational sound, delivering a quieter environment for sound-sensitive applications. Optional compressor sound blankets can also be utilized to further minimize noise levels.

IAQ equipment supported: DCSA supports advanced IAQ equipment with its inverter scroll technology, enabling precise temperature and humidity control within the air handler, while also lowering electricity bills and reducing carbon footprints. Starting this summer, the DCSA will also offer modulating hot gas reheat for enhanced temperature control and dehumidification.

Thermostat compatibility: Requires field control integration with air handler.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: DCSA is unique due to its hot gas reheat integration, enhancing humidity control for optimal comfort. Its variable-speed compression offers energy-efficient performance that adjusts to demand and meets partial-load conditions, reducing energy bills and lowering GWP. The system also features seamless control integration with air handlers, ensuring precise temperature regulation and offering flexible installation options.

Warranty information: Standard one-year warranty. For added protection, customers can opt for extended warranty options that cover both parts and labor, ensuring continued reliability and performance.

Special installation requirements: DCSA requires proper split-system piping for efficient operation and system integrity. It also must be paired with an R-32 air handler DX coil to ensure compatibility and optimal performance.

Website: daikinapplied.com

High-efficiency, gas/electric, heat pump, and cooling rooftops, 3 to 12.5 ton

Serviceability features: Daikin RTUs are designed to streamline installation, service, and maintenance. Blower, fan, motor, controls, and compressor are easily accessed. Filter panels plus optional hinged panels offer quick, toolless access. Direct-drive motor helps improve performance and reduce routine maintenance. Daikin Appstat, a field-installed option, provides built-in control sequences and BACnet MS/TP integration with building management systems. Pre-programmed, factory-installed Daikin iLINQ DDC controller is available on all high-efficiency units; comes standard on hot gas reheat units.

Noise-reduction features: High-performance scroll compressors operate with less noise. Resilient, factory-mounted rubber grommets isolate vibration. The supply fan — featuring aluminum fan and blades — provides quiet (and efficient) operation at wide-ranging static pressure and airflow requirements.

IAQ equipment supported: A draw-through filter section provides better air quality and long-lasting component maintenance. Filters installed on the units are standard, off-the-shelf sizes for easy replacement. To protect IAQ, the module contains an induced draft fan that will maintain a negative pressure in the heat exchanger tubes for removal of flue gases. Factory-installed economizers are available for providing and controlling fresh outside air.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Daikin RTUs are built to perform with factory- and field-installed features and options that help provide low installation and operation costs, efficient operation, and longevity. Weather-resistant cabinets feature painted, heavy-gauge galvanized steel. A steel base rail provides structural integrity. Protective fork guides made of 0.095-inch steel help limit handling damage. Downward-turned base pan flanges add additional protection from the environment. Daikin's refrigerant detection system prevents refrigerant concentrating to the space if a leak is detected.

Warranty information: Outstanding limited warranties include a 20-year heat exchanger limited warranty and a five-year parts limited warranty. Complete warranty details are available from local dealer, distributor, or manufacturer representative. To receive the parts limited warranty, online registration must be completed within 60 days of installation. Online registration is not required in California or Quebec.

Special installation requirements: DHC/DHH/DHG units fit many existing footprints without needing a curb adapter. All sizes include built-in, through-the-base options and horizontal access knockouts for easier in-field wiring and piping installations. Additionally, the supply and return can be field converted from downflow to horizontal. Five speed taps are available to meet individual building needs. Also available: medium- and high-static range for applications of up to 2 inches water gauge of external static pressure (ESP).

Website: daikincomfort.com

Standard-efficiency, air conditioner, gas/electric, and heat pump rooftops, 3 to 25 tons

Serviceability features: Easy installation, serviceability, and maintenance are integral to the DSC/DSG/DSH Series rooftops. Panel design features easy access to blower, fan, motor, controls, and compressor. Quickly open filter access panels and optional hinged panels without tools. A well-organized, large, easy-to-use weatherproof internal control box provides a better user experience. A stainless-steel heat exchanger (gas/electric units) and direct-drive motor help improve durability, reducing routine maintenance needs. Slide-out forward curb fans allow easy maintenance.

Noise-reduction features: RTUs feature high-performance, low-noise scroll compressors. Resilient, factory-mounted rubber grommets isolate vibration. For quiet and efficient operation, the supply fan utilizes an aluminum fan and blades for quiet, efficient operation at wide-ranging static pressure and airflow requirements.

IAQ equipment supported: A draw-through filter section provides better air quality and long-lasting component maintenance. The indoor coil's draw-through configuration provides better dehumidification. Filters installed on the units are standard, off-the-shelf sizes for easy replacement. Daikin's foil-faced fiberglass insulation omits exposed filter fibers into the airstream. Factory-installed economizers are available for providing and controlling fresh, outside air.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Features microchannel technology for a high-efficiency, durable coil with outstanding heat transfer properties and reduced refrigerant load. Direct-drive motor helps improve performance and limits the need for routine maintenance. The refrigerant detection system adds safety. Painted, heavy-gauge, galvanized steel, weather-resistant cabinets and steel base rail provide structural integrity. Downward-turned base pan flanges help provide additional protection from the environment. Build/configure systems, develop performance reports/mechanical schedules and more using Daikin LCXpress Selection Tool.

Warranty information: Robust 20-year heat exchanger limited warranty and five-year parts limited warranty. Complete warranty details are available from local dealer, distributor, or manufacturer representative. To receive the parts limited warranty, online registration must be completed within 60 days of installation. Online registration is not required in California or Quebec.

Special installation requirements: For easier wiring and piping installation, Daikin RTUs include built-in, through-the-base options and horizontal access knockouts. Supply and return can be field converted from downflow to horizontal (3- to 12.5-ton models). Fits many existing unit footprints without a curb adapter (3- to 12.5-ton models). Five individual speed taps can be selected, while medium- and high-static range for applications of up to 2 in. water gauge of external static pressure (ESP) are also available.

Website: daikincomfort.com

Serviceability features: Completely redesigned for ease of service. Sealed electrical box with IP55 rating for protection from dust, water, and snow. Hot gas defrost circuit at bottom of coil eliminates need for base pan heater. Service window provides quick access to multifunctional display and configuration buttons. Multifunctional display provides refrigerant pressures and temperatures, eliminating the need to connect gauges during regular maintenance check. Refrigerant-cooled circuit keeps PCB cool. Intermittent outdoor fan operation minimizes snow accumulation.

Noise-reduction features: Standard operating sound levels are minimized with Daikin's inverter variable-speed vapor-injection compressors. Nighttime quiet mode.

IAQ equipment supported: Compatible with 100% outside air processing unit (FXMQ_MFVJU) and energy recovery ventilator (VAM_GVJU), providing sufficient levels of fresh outside air and recovering waste heat from extracted air leaving the conditioned zone.

Thermostat compatibility: Requires a special thermostat.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: New, stylish, space-saving design engineered to provide ease of installation and service. Available in a single- and dual-module lineup with a new larger chassis and modular connectivity, providing up to 40-ton system capacity with only two modules. Longer piping lengths allow coverage up to 360 feet of vertical distance. Patented vapor injection, plus inverter compressor technology for optimized part-load efficiency. Year-round comfort and efficiency with automatic and customizable variable refrigerant technology (VRT).

Warranty information: Ten-year parts limited warranty and 10-year replacement compressor limited warranty. Complete warranty details are available from local dealer, distributor, or manufacturer representative. To receive the parts limited warranty, online registration must be completed within 60 days of installation. Online registration is not required in California or Quebec.

Special installation requirements: Dual fuel ready with connectivity to Daikin communicating gas furnace or all-electric heat pump heating for optimized operational costs based on utility rates. Design flexibility to enlarge system from single- to dual-module without changes to installed main pipe sizes for phased installation or tenant fit-out buildings. Local code compliance-ready from factory via alignment with compliance needs, such as OSHPD Seismic, Miami Dade wind, and Chicago pressure relief codes.

Website: daikincomfort.com

Serviceability features: Compact design allows installation in small ceiling voids. Airflow is automatically adjusted to always maintain a comfortable environment. Optional self-cleaning filter panel further increases efficiency and reduces maintenance costs. Flexible cassettes feature 23 different airflow patterns, ensuring ideal air distribution -- maximizing efficiency and comfort. Energy-efficient DC fan motor with auto-logic adjusts speed based on space load. Stain resistant, easily cleanable, decoration panel coating. Silver ion, antibacterial drain pan treatment.

Noise-reduction features: Round Flow Sensing Cassettes operate very quietly, with sound pressure levels as low as 27 dbA. Low air velocities allow comfortable room airflow distribution with low noise.

IAQ equipment supported: State-of-the-art indoor air quality with high-efficiency filter options and ventilation connection kit. Optional self-cleaning filter panel to further increase efficiency and reduce maintenance costs. Dust from the air filter brush is deposited into the dust collection container during the fully automatic self-cleaning process. When indicated, the unit's dust container is easily emptied using a standard vacuum cleaner.

Thermostat compatibility: Manufacturer did not specify.

Replacement parts compatibility: Manufacturer did not specify.

Additional features: Round Flow Sensing Cassettes are ideal for open-plan applications such as classrooms and offices where adaptive comfort control is preferred. They provide excellent comfort levels, energy efficiency, and flexibility, using advanced control functions with input from three room sensors (occupancy, air temperature, surface temperature). Those sensors combined with true 360° airflow reduce draft and improve comfort. Lightweight fan reduces weight, improves efficiency. Features three user-selectable fan speeds, plus infrared presence and infrared surface temperature sensors.

Warranty information: Manufacturer did not specify.

Special installation requirements: Compact design allows installation in small ceiling voids. With 23 configurable airflow distribution patterns, it can be efficient and provide a comfortable environment not only for open-plan applications, but also in smaller, more intimate spaces as well.

Website: daikincomfort.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 82 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.dayandnightcomfort.com

Serviceability features: Fully automated refrigerant charge (FARC). Backup running technology to keep the system working even with malfunctioning sensors. With Ecoer Smart IoT technology, the system can automatically monitor and analyze the operation data to detect and diagnose possible faults and send alerts to service providers. Universal footprint design ensures compatibility with a 42.2- by 46.1-inch curb, providing versatility in installation. Can be used for three-phase or single-phase operation.

Noise-reduction features: Sound level as low as 65 dBA.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: Ecoer’s rooftop inverter heat pump is meticulously crafted for optimal performance and energy efficiency. Boasting an impressive 18.5 SEER2 and 9.2 HSPF2, this unit exemplifies an unwavering dedication to innovation and excellence. Occupants can immerse themselves in the ideal harmony of comfort and eco-friendliness, supported by a robust 55,000 Btu capacity that guarantees year-round comfort in the space.

Warranty information: Commercial application warranty is three-year parts and three-year compressor.

Special installation requirements: Manufacturer did not specify.

Website: www.ecoer.com

Serviceability features: All electrical components and control board are serviceable from front of the unit. Slide-out cooling chassis and electric heater for ease of maintenance, service, and replacement. Easily accessible refrigeration service ports located on exterior of cooling chassis with temperature probe area.

Noise-reduction features: Insulated chassis compartment to improve cooling performance, reduce noise, and prevent sweating. Dual inlet indoor blower to lower fan RPMs, improve efficiency, and reduce noise. Double-isolated compressor mount to lower compressor noise and vibration.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Requires a special thermostat.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: Self-contained package units with heat pump cooling and electric backup heat. Eliminates the need for outdoor units, electrical lines, and refrigerant lines. Dual inlet indoor blower to lower fan RPMs, improve efficiency, and reduce noise. Two drain pans with corrosion-resistant coating. Two TXVs for cooling and heating to optimize performance. Operates down to as low as 5°F ambient temperature.

Warranty information: Five-year limited warranty on parts and compressor.

Special installation requirements: Manufacturer did not specify.

Website: www.firstco.com

Serviceability features: Easy access for in-place service of most components. All electrical components and control boards are serviceable from front of unit.

Noise-reduction features: Insulated compartment to improve cooling performance, reduce noise, and prevent sweating. High-efficiency two-stage scroll, single-stage scroll, and rotary compressors with double-isolated compressor mount to lower compressor noise and vibration.

IAQ equipment supported: Energy recovery ventilator (ERV).

Thermostat compatibility: Requires a special thermostat.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: Space-constrained low ambient heat pump with integrated ERV. Easily installs into a closet or mechanical room on an exterior wall, utilizing a minimal amount of floor space. Controlled by a standard low voltage heat pump thermostat with ventilation capabilities. Operates down to as low as 5°F ambient temperature with time-temperature defrost board and selectable defrost interval times.

Warranty information: Five-year limited warranty on compressor and parts

Special installation requirements: Requires single piece, weight-bearing, wall sleeve with integrated ventilation air intake and exhaust ports for various wall thicknesses from 5 to 20 inches. Units are controlled by a standard low-voltage heat pump thermostat with ventilation capabilities.

Website: www.firstco.com

Serviceability features: VRP features a slide-in-out chassis, allowing for easy installation and maintenance. Its three-way installation orientation provides flexibility in positioning, ensuring it fits seamlessly into various spaces. With all electricals located at the front of the unit, access for servicing and repairs is straightforward and convenient. Additionally, the unit includes a condensate/excess water spillway, effectively managing water discharge to prevent any potential issues.

Noise-reduction features: VRP is designed for superior performance and efficiency. It features insulated panels that enhance thermal efficiency and reduce noise levels. The perimeter gasket across the sleeve ensures a tight seal, preventing air leaks and improving overall energy efficiency. At its core, the inverter compressor provides precise temperature control and energy savings. Additionally, the unit is equipped with counterweights to minimize vibrations and ensure smooth, quiet operation.

IAQ equipment supported: This advanced HVAC system is equipped with a MERV 8 outside air filter, which effectively captures larger particles from incoming air, enhancing overall air quality. Additionally, the MERV 13 return air filter provides superior filtration, removing finer particles and allergens from the indoor air. The system also features bipolar ionization, a technology that neutralizes airborne pathogens and contaminants, ensuring a healthier and cleaner indoor environment.

Thermostat compatibility: Requires a communicating wall controller.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: The VRP system offers low ambient capability, ensuring optimal performance even in extreme temperatures. It features hot gas reheat technology, which efficiently manages humidity levels while maintaining comfortable indoor temperatures. The FreshAire outside air system enhances indoor air quality by introducing fresh, filtered, and conditioned air from outside. At the heart of this system is the Precision inverter compressor, which provides precise temperature control and energy efficiency.

Warranty information: Standard one-year parts and five-year sealed system.

Special installation requirements: No special installation requirements.

Website: friedrich.com

Serviceability features: The service-friendly design of the AIRSTAGE J-7S system allows for easy access to key components like compressor, coil, valves and electrical connections and components.

Noise-reduction features: Both indoor units and outdoor units are designed with low sound levels for people comfort and for flexibility in system layout. In addition, indoor units have a quiet mode operation for extra low sound levels down to 21 dBA.

IAQ equipment supported: The indoor units have efficient air filters to meet IAQ requirements. In addition, the slim ducted indoor unit can be used to introduce outside air to the conditioned space.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: AIRSTAGE J-7S systems provide low operating costs and potential tax credits and rebates. Up to 12 indoor units (slim ducted, wall mounted, compact cassette) can be served by a single outdoor unit. Wide ambient operating temperature range, from 23° to 122°F in cooling mode and -15° to 70°F in heating, provide flexibility even in extreme environments. Line sets may be up to 164 feet piping length with 98 feet vertical difference between units in the system.

Warranty information: Seven-year compressor, five-year parts out-of-the-box warranty. A 10-year compressor, 10-year parts warranty is provided when registered within 60 days of installation in a residence. A 12-year compressor, 12-year parts warranty is provided when registered within 60 days of installation in a residence and installed by a Fujitsu Elite contractor.

Special installation requirements: Outdoor units are very compact and lightweight, making them easy to transport and install in narrow spaces.

Website: www.fujitsugeneral.com

Serviceability features: Web-user interface for remote monitoring and easy startup. Hinged access doors for easy access to filters, fans, energy recovery wheel, energy core, compressors, and controls. Optional lightweight, segmented energy recovery wheel for easy cleaning. Dirty filter switches, rotation sensors, airflow monitoring, and microprocessor with LCD display.

Noise-reduction features: Units are provided with actual radiated sound data tested in an AMCA-certified lab at full capacity with five planes of actual sound data. Two-inch R13 injected foam insulated unit and base. Compressor isolation with standard inverter scroll compressor. Standard EC motor on lead condenser fan for head pressure control with optional EC motors on all condenser fans.

IAQ equipment supported: Optional UV light and/or bipolar ionization for air disinfection. Two-inch MERV 8 outdoor air and exhaust filters. Two- or 4-inch filters ranging from MERV 8 to MERV 14 supply filters. Optional outdoor, supply, and exhaust airflow monitoring. Optional CO₂ sensor.

Thermostat compatibility: Compatible with most thermostats. Compatible with most thermostats when using BMS. Manufactured thermostat with controls factory provided when selected.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Offered with optional enthalpy recovery wheel or enthalpy recovery core technology to reduce cooling and heating loads. Inverter compressor from 3 to 70 tons. Air-source heat pump from 5 to 30 tons. High-turndown furnace up to 16:1 turndown. Factory-programmed microprocessor. Built-in furnace commissioning guide. Web user interface allows the unit to be viewed and controlled from a web browser. Horizontal duct connections for installation flexibility. Web-based selections.

Warranty information: Greenheck warrants the equipment to be free from defects in material and workmanship for a period of 18 months from the shipment date. An extended warranty up to 66 months from the shipment date is also available (based on selection).

Special installation requirements: None.

Website: www.greenheck.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 79 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.heil-hvac.com

Serviceability features: Self-diagnostic capabilities: built-in fault detection automatically identifies issues (e.g., refrigerant leaks, sensor failures) and displays error codes via the controller or LED indicators; historical data logging helps technicians review system performance trends. Easy access panels: removable front/side panels provide direct access to filters, drain pans, and electrical compartments; hinged or tool-free panels reduce service time. Clear documentation: wiring diagrams and refrigerant circuit maps are printed on units for quick reference; compatibility with manufacturer-specific troubleshooting apps.

Noise-reduction features: The high-efficiency DC inverter twin rotary compressor is featured with unique dual-pressure chamber design, effectively reducing vibration noise The enlarged fan increases airflow for more efficient operation while reducing noise levels. With sound pressure level as low as 21 dBA, this VRF's Whisper-Quiet Solution solves the troublesome noise issue of indoor units. Hisense is committed to creating an environment where tranquility meets comfort to help with occupants’ concentration and relaxation in daily life.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Requires a special thermostat. Can work with third-party thermostats by using Hisense adapter.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Hi-Comfort Series is meticulously designed and features a remarkable SEER2 of up to 22.5 and an HSPF2 of 11. Hi-Comfort boasts a remarkable heating capacity with an advanced injection compressor and redesigned fins, ensuring minimized heat loss and maximized comfort. This pioneering technology ensures system could have 100% heating at 5°F. When the air conditioner is in cooling mode, it extracts heat from the room, using it to heat domestic hot water without consuming additional electricity.

Warranty information: Ten-year limited warranty.

Special installation requirements: Manufacturer did not specify.

Website: www.hisensecomfort.com

Serviceability features: Installation of air365 Max VRF systems is simplified for contractors with airCloud Tap, an app designed to help HVAC professionals install, read, and change Hitachi equipment settings, as well as read detailed diagnostics data on mobile devices. With the app, installers have access to more than 200 setting parameters to optimize the equipment functions and operations. This contactless communication technology allows installers to configure the equipment and customize settings 30 to 50% faster, saving time and maintenance costs.

Noise-reduction features: A patented oil return control cycle consumes less energy and guarantees quiet operation, which translates into increased efficiency and greater comfort for occupants.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The high-efficiency air365 Max with HeatForce is a top-flow VRF heating and cooling system that delivers seamless comfort, best-in-class energy efficiency, and easy installation and maintenance. It can operate at 100% heating capacity with outdoor temperatures as low as -13°F and at 90% heating capacity down to -22°F. This makes the end-to-end heating and cooling solution ideal for commercial buildings in North America – especially cold-climate regions.

Warranty information: Standard warranty includes 10 years for the compressor and parts.

Special installation requirements: Manufacturer did not specify.

Website: www.hitachiaircon.com

Serviceability features: The air365 Mini has several features that simplify installation, operation, and serviceability, including embedded R-32 refrigerant detection sensors in all indoor and air handling units, reducing installation costs and time. It also features a built-in visual and audible leakage alarm-equipped zone controller for enhanced safety and efficiency, as well as an R-32 safety manager, which allows monitoring without a central controller or BMS. Air365 mini offers extended heating range down to -13°F in heating.

Noise-reduction features: The air365 Mini offers very quiet operation, as low as 48 dBA, and night-mode operation is available.

IAQ equipment supported: None.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The air365 Mini VRF is the perfect solution to meet evolving regulations and drive sustainability initiatives. Designed for tight spaces and diverse applications, the air365 Mini delivers efficiency, flexibility, and reliable comfort, empowering projects to thrive under new environmental standards. Energy Star, AHRI, and ETL certified with a heating operating range down to-13°F.

Warranty information: Standard warranty includes 10 years for the compressor and parts.

Special installation requirements: Manufacturer did not specify.

Website: www.hitachiaircon.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 79 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.icpusa.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 79 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.keeprite.com

Serviceability features: All Xion units come standard with an isolated compressor compartment and accessible heating compartment, which reduce installation and service time. The Lennox CORE Lite unit controller and service app provides guided setup menus for install, test and balance, network integration, detail runtimes, and service history. Each of these features allows technicians to quickly perform service and maintenance on every Xion rooftop unit.

Noise-reduction features: All compressors are resiliently mounted on rubber grommets for quiet operation. Isolated compressor compartments reduce noise during operation. A variable-speed indoor blower is featured on 7.5- through 25-ton models, which greatly reduces the noise levels during part-load operation and startup.

IAQ equipment supported: Xion rooftop units with Humiditrol (hot gas reheat) dehumidification technology offer an optional humidity control system that efficiently removes moisture from the air to create a healthier, more comfortable indoor environment. These units help commercial businesses improve the health of their building with field-installed UVC lights, needle point bipolar ionization, and high-efficiency MERV 16 filters.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: Xion rooftop units are designed roof ready to quickly fit application needs. These units come with a self-sealing insulated base and minimized plumbing through a convertible drain pan that makes installation quick and easy. More than 100 field-selectable options ensure fast and easy installation.

Warranty information: Warranty period for Lennox CORE LITE unit controller is three years. Warranty period for aluminized heat exchangers is 10 years. Warranty period for stainless steel heat exchangers is 15 years. Warranty period for compressors is five years. Warranty period for Environ coils is three years. High-performance economizers and variable-frequency drives (inverters) are warrantied by Lennox for a period of five years when installed in all applications.

Special installation requirements: The Lennox CORE Control System on Xion rooftop units is comprised of the easy-to-use Lennox CORE Lite unit controller and the intuitive Lennox CORE service app. The CORE Lite unit controller openly integrates with multiple control types, extends unit lifetime by reliably operating system components, and optimizes unit efficiency through built-in algorithms, creating ideal space conditions with ease.

Website: www.lennox.com/commercial

Serviceability features: Manufacturer did not specify.

Noise-reduction features: The ISC is designed to minimize the need for path attenuation based on its low sound power design and construction. Key features that reduce source noise include inverter soft starting of fans and compressors, low-noise fan design, night running mode, an acoustic compressor blanket, and load matching, which uses only the energy necessary to meet the load requirements.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Manufacturer did not specify.

Replacement parts compatibility: Manufacturer did not specify.

Additional features: LG's Inverter Scroll Heat Pump Chillers are self-contained, automatic refrigerating units with the latest engineering components, including VRF. Units are built within a single frame with a nominal capacity of 20 tons. A 20-ton frame contains two independent circuits, each rated at 10 tons. Each circuit is equipped with an inverter-controlled compressor and condenser fan. The largest single unit has a nominal capacity of 60 tons, achieved by joining three 20-ton frames.

Warranty information: The standard parts-only limited warranty term for qualified products is one-year parts and three-year compressor (does not include labor). Please reference the product’s limited warranty, available at www.lghvac.com, for complete limited warranty terms and conditions. Additional warranties and field services are available upon request.

Special installation requirements: Manufacturer did not specify.

Website: https://lghvac.com

Serviceability features: Hybrid VRF is flexible for any application with a modular design system and is just as scalable as traditional VRF systems. Users can save on installation cost and labor by eliminating refrigeration work between the Hybrid Branch Circuit (HBC) controller and Hybrid VRF indoor units. The unique two-pipe heat recovery system requires less piping than a four-pipe chiller system and does not require an external pump, valves, sensors, actuators, or other ancillary controls.

Noise-reduction features: The noise levels at the indoor units in the occupied spaces are lower than traditional VRF, as there are no control valves or refrigerant being circulated. The use of hydronic indoor units can reduce noise during operating transitions and reduce defrost time by up to 50% through the use of heat recovered from the hydronic loop.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Requires a special thermostat.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The two-pipe Hybrid VRF system exchanges heat between refrigerant and water using a unique HBC controller, reducing refrigerant outdoors and keeping indoors refrigerant-free. The HBC controller’s two DC inverter-driven water pumps control water flow and temperature to indoor units in conjunction with a modulating flow control valve per branch port. This design allows for simultaneous heating and cooling between different indoor units.

Warranty information: Standard – parts: warrantied for one year to original owner; compressor warrantied for seven years to the original owner. Extended – Hybrid BC controller and indoor components: five years if system is installed and registered within 90 days of installation. Extended – compressor and outdoor components: 10 years if system is installed and registered within 90 days of installation

Special installation requirements: Hybrid VRF can be installed using multi-layer composite piping (MLC), also known as barrier pipe. It is a unique piping solution to cut down on installation and piping material costs related to installing a Hybrid VRF system.

Website: www.mitsubishicomfort.com

With heat options, including heat pump

Serviceability features: Hinged access doors throughout, all parts are off-the-shelf.

Noise-reduction features: ECM fans and variable-speed scroll compressor.

IAQ equipment supported: Liquid desiccant saltwater solution is naturally biocidal and cleans the air that passes through it.

Thermostat compatibility: Requires a special thermostat.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: ArctiDry integrates liquid desiccant with a reversible heat pump, delivering a significant improvement in efficiency in an affordable, reliable, and easy to maintain package. A turnkey solution, ArctiDry can independently deliver dewpoints as low as 40°F, while delivering supply air at any temperature without requiring hot gas reheat, chilled water, or enthalpy wheels. ArctiDry’s ISMRE is 11 lb/kWh, over twice the efficiency required by ASHRAE 90.1.

Warranty information: Two-year parts-only warranty, five-year compressor and liquid desiccant system warranty, and 10-year gas heat exchanger warranty. Extended warranties available.

Special installation requirements: ArctiDry is a fully packaged unit and has no special installation requirements – only electrical service required (and gas if gas heater option selected for winter operation).

Website: https://mojavehvac.com

Serviceability features: Quality commercial construction; full man-size service doors; service lights; and 508A panel.

Noise-reduction features: High-efficiency fans selected for optimal efficiency and acoustical performance.

IAQ equipment supported: High-efficiency filter options designed to suit end user’s needs. MERV 7 through MERV 13. Optional UV lights. Stainless steel IAQ-quality drain pans. Fully sealed double wall panels with no exposed insulation for wipe down cleaning (as standard).

Thermostat compatibility: Compatible with most thermostats. Customer specification.

Replacement parts compatibility: Some shared parts and some unique parts. Shares replacement parts with other models.

Additional features: The Temtrol LC air handler is especially targeted for the K-12 market that utilizes chilled water air handlers to obtain higher efficiencies and/or to serve larger buildings/campuses, though it is also suitable for other applications. It is ideal for indoor and outdoor applications with airflows less than 20,000 CFM and mid to high static pressures. Its compact size makes it popular for space-limited installations including above-ceiling mechanical rooms and rooftops.

Warranty information: All products (excluding software and spare parts) manufactured by seller will conform to the specifications and submittals provided by seller and will be free of defects in material and workmanship (“defects”) for 12 months following startup or 18 months following ship date, whichever occurs first, under normal use and regular service and maintenance, if installed and maintained pursuant to seller’s instructions. Contact factory for extended warranty.

Special installation requirements: There are no special installation requirements.

Website: www.nortekair.com

Serviceability features: Designed for easy maintenance and serviceability, access panels can be opened or removed without affecting the structural strength of the unit, facilitating routine maintenance tasks such as coil cleaning or component inspection. Stamped louvered panels offer 100% protection for the condenser coil, adding to unit performance and reliability. The RHCYA air handler, which matches with RACY air conditioners, features a standard separable design, allowing for easier installation in tight spaces, thanks to its modular design.

Noise-reduction features: Remote mounting of the already quiet a/c condensing unit keeps the compressor and condenser fan noise outside, and the vertical discharge fans carry the sound up and away from the surrounding area.

IAQ equipment supported: RHCYA series air handler models are compatible with MERV 8 and MERV 13 filter for enhanced building IAQ.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Rheem Commercial split a/c systems include the smallest and lightest 10 ton available, and air handlers come standard in a patent-pending separable design – all features inspired by direct input from field HVAC professionals. The new 2025 lineup of models, designed for sustainability with low-GWP refrigerant, comes standard with a factory-installed refrigerant detection sensor for added reliability and easier install in the field.

Warranty information: Commercial split air conditioner limited warranty: five-year compressor, one-year parts. Commercial split air handler limited warranty: one-year parts. Rheem will furnish a replacement for any part of this product that fails in normal use and service within the applicable periods stated, in accordance with the terms of the limited warranty.

Special installation requirements: The remote a/c condensing unit must be installed outdoors, following refrigerant line set limits and clearance requirements identified in the install and operation instructions. Ensure free airflow to outdoor coils and avoid air recirculation between units, allowing at least 60 inches [1524 mm] above for discharge. Both the air conditioner and air handler come with printed installation and operation instructions, which should be reviewed and followed for proper install and optimal operation.

Website: rheemcommercial.com

Serviceability features: Serviceability features include the Qwik-Clean drain pan and Qwik-Slide blower assembly to simplify service and maintenance. Also, enhanced defrost control includes high- and low-pressure inputs with advanced pressure switch logic, ensuring compressor protection without nuisance lockouts. Diagnostic LEDs assist service personnel. Additionally, electric heater kits feature single-point wiring, a removable heat kit assembly, and wound-wire heating elements with ceramic bushings. Hinged access panels are standard, making interior access easy.

Noise-reduction features: The unit boasts VFD, which gradually increases speed, minimizing stress on the supply fan and reducing noise from sudden airflow surges. By cutting airflow in half during first-stage cooling and constant fan operation, overall noise levels are significantly lowered. This smooth operation enhances comfort by preventing abrupt sound changes, making the system quieter and more efficient. The reduced mechanical strain also contributes to long-term reliability and improved user experience.

IAQ equipment supported: RHPHYB supports IAQ by ensuring neatly bundled and routed wiring, reducing potential contaminants. A molded wire harness assembly creates an airtight, water-tight seal where wires pass through the condenser bulkhead or blower deck, preventing air leaks and moisture infiltration. Building owners can opt for 2-inch MERV 8 or MERV 13 filters to enhance IAQ as well. These design choices help maintain cleaner airflow and contribute to a healthier indoor environment.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Resolute heat pump models come standard with the PlusOne ServiceSmart package, which includes a Qwik-Slide blower assembly, Qwik-Clean drain pan, and hinged panel access throughout, making service and routine maintenance easier. In the new 2025 lineup, Ruud Resolute heat pump models also come standard with a factory-installed refrigerant detection system for added reliability and easier installation in the field.

Warranty information: Ruud will furnish a replacement for any part of this product that fails in normal use and service within the applicable periods stated, in accordance with the terms of the limited warranty. Limited warranty period: five-year compressor, one-year parts.

Special installation requirements: Installers should refer to the product’s installation and operation manual that ships with the unit for the correct guidance for proper installation and optimal performance.

Website: ruudcommercial.com

Serviceability features: Easy to install 3- to 15-ton units are field-convertible, lighter, and provide quieter operation. Clearly labeled plug-in connection points on the unit control board (UCB) help reduce installation time. Patented X-Vane fan system and direct-drive ECM motor make belts and pulleys obsolete. If adjustment is necessary, it can be made via the UCB. For service maintenance, easy-access handles provide quick routes to service panels commonly used. Sloped corrosion-resistant drain pan sheds water and won’t rust.

Noise-reduction features: A-weighted acoustic rating 79 dB. Patented X-Vane technology units are quiet by design and well suited for noise-sensitive applications.

IAQ equipment supported: Yes.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Patented X-Vane fan system with ECM as compared to belt-driven forward curve fans has 75% fewer moving parts; up to 40% greater efficiency; no fan belts, pulleys, shaft, or shaft bearings; internal protection from phase reversal situations; and high external static capability. UCB with indoor fan adjustment uses simple dial/switch configuration. Copper tube/aluminum fin condenser coil with 5/16-inch tubing reduces refrigerant charge/weight versus prior designs for superior heat transfer coefficients.

Warranty information: One-year parts, five-year compressor, 10-year heat exchanger, and 15-year stainless steel heat exchanger. Five-year parts extended warranty also available.

Special installation requirements: Vane Axial fans, VFD motors, and single-phase motors will always spin the correct direction. The installer should check three-phase compressors to ensure they are phased correctly at install. They should also measure temperatures and pressures at startup to ensure the compressor is pumping. Pay attention to any phase imbalance. Units are engineered to a phase imbalance of 2%. If phase imbalance exceeds 2%, the installer should contact the local utility company immediately.

Website: www.tempstar.com

Serviceability features: Double-wall foamed panel construction throughout the indoor section of unit to provide, non-porous, cleanable interior surfaces. Hinged access doors for ease of maintenance and service. Easy-open door latches. Slide-out access to direct-drive plenum fan. Optional slide-out, total-energy wheel. Optional control display. Easy filter access encourages frequent changing.

Noise-reduction features: Optional compressor sound blankets.

IAQ equipment supported: Stainless steel drain pan sloped to ensure proper drainage and reduce the potential for microbial growth. High-efficiency throwaway filter option with standard 2- or 4-inch adjustable filter rack. Refrigerant hot gas reheat for low dewpoint supply air for superior humidity control.

Thermostat compatibility: Requires a special thermostat.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Single-point power connections for units with optional total-energy wheel, powered exhaust, electric heat. Factory-piped, leak-tested refrigeration system. RDS designed to easily integrate with building automation systems. Controls factory-engineered, mounted, configured, and tested to minimize field startup time. Capable of supply air control or zone control of temperature and relative humidity. Numerous heater options and temperature rise capabilities available. Indirect fired gas heat, primary electric heat, secondary electric preheat option. Optional remote human interface for ease of control access.

Warranty information: Warranty period equals 12 months from initial startup or 18 months from date of shipment to the end-user, whichever is less. A Horizon Flex extended warranty is available.

Special installation requirements: Eight hours of factory startup included.

Website: www.trane.com/commercial/north-america/us/en.html

Serviceability features: Manufacturer did not specify.

Noise-reduction features: For sound-sensitive applications, an optional acoustical treatment can be factory- or field-installed on the compressors of the RTWD chillers.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Trane Symbio unit controller that’s connectable to a building automation system.

Replacement parts compatibility: Some unique parts and some shared parts.

Additional features: As a heat pump chiller, the RTWD offers flexibility for high-temperature commercial applications, delivering hot water temperatures of up to 165°F (74°C) with refrigerant R-515B, and can also work with specialized low-temperature applications, with leaving evaporator solution temperatures as low as 10°F (-12°C) with refrigerant R-513A. Thanks to its compact size, RTWD chillers provide greater design flexibility, with units able to pass through a standard double-door opening.

Warranty information: Extended warranty options: 10-year parts, labor, and refrigerant* (first year is standard for parts only) (whole unit and compressor-only options). *Delayed startup through 12/36.

Special installation requirements: Manufacturer did not specify.

Website: www.trane.com/commercial/north-america/us/en.html

Serviceability features: The unit is installed completely indoors, protected by the building for long life expectancy and service capability free from the outdoor elements. Resealable refrigerant fittings between the cabinet sections preserve factory refrigerant charge and eliminate on-site brazing and charging. All sides of the unit incorporate lift-off panels for ease of access to key components and hinged access doors on the filters rack expedite filter maintenance.

Noise-reduction features: Constructed with a solid double wall liner, 1-inch insulation and ECM plenum fans, the Alpha Aire II provides quiet and efficient operation. Compressor is mounted on rubber vibration isolators and separated from the airstream in its own compartment.

IAQ equipment supported: Alpha Aire II provides fresh air ventilation. High-efficiency MERV 13 filters are standard.

Thermostat compatibility: Manufacturer did not specify.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: Alpha Aire II is a single package ASHP designed with an energy recovery wheel to transfer the energy from the exhaust air to the ventilation air. The subcooling coil provides reheat capability and increased efficiency. The modulating valve with the hot gas reheat coil delivers a consistent, neutral leaving air temperature at a low dew point temperature. These combined technologies provided unparalleled efficiency. This unit is all electric, which makes it environmentally friendly.

Warranty information: Five-year compressor warranty and one-year parts.

Special installation requirements: The unit is installed indoors and hung from the ceiling via field-provided hanging rods and vibration isolators. The outdoor air intake duct and condenser discharge duct are connected to louvers installed in an exterior wall.

Website: www.unitedcoolair.com

Serviceability features: The EZ-Fit with ERW is installed completely indoors, protected by the building for long life expectancy and service capability free from the outdoor elements. Resealable refrigerant fittings between the cabinet sections preserve factory refrigerant charge and eliminate on-site brazing and charging. Hinged access doors and lift-off panels provide access to key components on front and sides of unit.

Noise-reduction features: Constructed with 1-inch closed-cell elastomeric foam insulation and ECM plenum fans, the EZ-Fit with ERW provides quiet and efficient operation. Each compressor is mounted on rubber vibration isolators and comes with a factory-provided compressor acoustic cover.

IAQ equipment supported: EZ-Fit with ERW provides fresh air ventilation. High-efficiency MERV 8 pre and MERV 13 final filters are standard.

Thermostat compatibility: Marvel Premium Microprocessor with BACnet.

Replacement parts compatibility: Shares replacement parts with other models.

Additional features: The modular cabinet has been designed to ship in multiple sections for ease of maneuvering throughout the building. All sections fit through a standard 36-inch doorway and are easily assembled on site. Single modules (3,000 to 10,000 CFM) can be twinned as a dual module for higher capacities and CFMs (up to 21,000 CFM) with single point power and single water connections. All units ship with a complete R-410A refrigerant charge.

Warranty information: Five-year compressor warranty and one-year parts

Special installation requirements: Manufacturer did not specify.

Website: www.unitedcoolair.com

Serviceability features: The system is fully integrated with WaterFurnace’s advanced Hydrolink controls platform for easy monitoring and maintenance. Integrated strainers provide easier maintenance and can be serviced independently. The condenser reduces probability of fouling and reduces standard cleaning and flushing interval. Isolation valves are provided on each heat exchanger for improved serviceability, without interrupting chiller bank operation. Allows easy access for annual maintenance and heat exchangers cleaning-in-place.

Noise-reduction features: The TruClimate 300 uses a variable-speed inverter-driven compressor, which not only enhances efficiency, but also helps in reducing noise. The compressor operates at varying speeds, adjusting to the cooling demand, which minimizes the noise levels during partial-load operations compared to traditional fixed-speed compressors.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Manufacturer did not specify.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The TruClimate 300 utilizes a highly robust heat exchanger for the condensing side. With the condenser, the chiller is less prone to fouling, doesn’t sacrifice efficiency, and is efficient for heat transfer. The TruClimate 300 can modulate to match load of the space. Integrated strainers provide easier maintenance and can be serviced independently. Condenser reduces the cleaning and flushing interval. Isolation valves are provided on each heat exchanger for improved serviceability without interrupting bank operation.

Warranty information: Standard warranty applies.

Special installation requirements: Contact factory for requirements.

Website: www.waterfurnace.com/commercial

Serviceability features: The YK-CP features the proven OptiView control panel with updated software, making it easier than ever to securely and efficiently manage chiller operations. The panel interface helps streamline operations by providing operators with the information they need in a clear, accessible format while increasing efficiency and minimizing errors. The YORK Connected Chiller Access Manager also provides proactive chiller predictive maintenance vital to maintaining energy efficiency, reducing operational costs, and ensuring uptime.

Noise-reduction features: YK-CP chillers combine available OptiSound Control alongside optional VSD technology to minimize gas-flow disruptions that cause noise. OptiSound Control is a patented combination of hardware and software that reduces operational sound and vibration levels, expands the chiller operating range, and improves chiller performance and reliability. OptiSound Control delivers the quietest centrifugal chiller products on the market from 215 to 6,000 TR (755 to 21,100 kW).

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Manufacturer did not specify.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: The YK-CP offers modular design with various shell set sizes available, while maintaining key unit dimensions, benefitting facilities needing more than one cooling condition met. Multiple heat exchanger lengths are also available, optimizing performance while reducing upfront costs. Designed for high performance and sustainability, it can include a variable-speed drive, improving energy efficiency by up to 30% compared to conventional chillers, making it ideal for large commercial buildings aiming to decarbonize.

Warranty information: Parts and labor with extended warranty options.

Special installation requirements: Designed with modularity in mind, the YK-CP can easily be customized to save on upfront costs, while delivering the best performance for every application. Compared to other chillers in the market using low-pressure refrigerants, the YK-CP features a 22% smaller footprint, which can simplify transport and installation and further reduce carbon emissions.

Website: york.com/yk-cp

Serviceability features: Select rooftop units are optimized with the latest proprietary advances in modeling technology to help preemptively identify issues. An optional Connected Workflow Converter (CWCVT) offers remote diagnostic monitoring for fewer trips to the job site. Single-side access to all serviceable items provides ease of service that is further simplified with accessible connections, service ports, hinged access panels, convenience outlets, service disconnect switches, and optional service valves.

Noise-reduction features: A double-wall, foam-insulated cabinet option reduces unit noise.

IAQ equipment supported: The Select Crossflow offers a range of IAQ options, including modulating hot gas reheat, 2-inch MERV 8 or 4-inch MERV 13 filters, low-leak economizers, modulating power exhaust, an air proving switch, a CO₂ sensor, and a bolt-on energy recovery ventilator (ERV).

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts and some unique parts.

Additional features: Select rooftop units exceed aggressive Department of Energy (DOE) 2023 energy efficiency standards by up to 31%. Crossflow allows for dedicated airflow configurations of vertical supply and horizontal return, or vice versa. This flexibility simplifies installation in various building layouts, optimizing duct routing and reducing the need for costly modifications. Crossflow enhances system efficiency by ensuring proper airflow distribution, improving comfort and performance in different HVAC applications.

Warranty information: Factory-backed warranties, including a standard one-year parts warranty, five-year compressor and electric heat limited warranties, 10-year aluminized heat exchanger limited warranty, and a 15-year stainless steel heat exchanger limited warranty. Through the Ducted Systems (DS) Solutions app, completing the online course and submitting startup sheets unlocks extended labor warranty opportunities. The DS app is available on iOS and Android.

Special installation requirements: Scan the QR label on the unit rating plate to access unit specific startup sheets, technical guides, installation manuals, parts lists, controls data, fault codes, warranty information, and other relevant documentation through the DS Solutions app.

Website: www.york.com