Small Sunline™ Packaged Rooftop Units

3-6 Tons

YORK® Small Sunline™ Packaged Rooftop Units deliver simplicity and performance that give you an advantage on almost every rooftop project

  • A/C and heat pump models in convertible airflow configurations
  • Standard-efficiency models up to 14.0 SEER/14.2 IEER and 8.0 HSPF
  • Scroll compressors
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Smarter Technology for Better Performance

An ideal solution for commercial building applications, YORK® Sunline™ Series packaged rooftop units combines efficiency and advanced economizer controls with unprecedented installation flexibility and low installed costs. Its compressor is internally protected against high pressure and temperature to ensure dependable performance in tough conditions. Smart Equipment, provided as a standard component, provides reliability and ease of use.

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Factory-installed options and easy power and control wiring reduce installation costs.


Energy-efficient scroll and reciprocating compressors reduce operational costs.


YORK® Small Sunline™ packaged units meet or exceed ASHRAE Standard 90.1.


Designed, engineered and assembled in the United States at the Johnson Controls Rooftop Center for Excellence in Norman, OK.


  • Energy-efficient scroll and reciprocating compressors
  • Easy power and control wiring for reduced installation time and costs
  • Convertible airflow design doesn't require panel cutting or an accessory panel
  • All cooling only/heat pump models share a common footprint for on-site flexibility
  • Gas and electric utility knockouts provided on unit side and bottom for easy connections
  • Smart Equipment controls aid in reliability and ease of use

Verasys Controls

YORK® Small Sunline Packaged Rooftop Units are Verasys enabled, making it easy to improve comfort, efficiency and operating costs. Verasys offers remote connectivity for secure access anytime, anywhere. BACNet®-based, it connects seamlessly to Smart Equipment throughout your facility via wireless compatibility.
Learn more about Verasys
Verasys controls showing the configuration and performance of a building's YORK packaged rooftop unit.
Smart Equipment control board and components for YORK packaged rooftop unit

Smart Equipment

Every YORK® Small Sunline Packaged Rooftop Unit comes standard with next-generation Smart Equipment and can connect seamlessly to a controls systems and self-discover other Smart Equipment. On-board controls support cloud-based data analytics, including fault detection, to support proactive maintenance and minimize downtime.

Smart Equipment helps maximize control for greater efficiency, extended equipment life and reduced operating costs.

Mobile Access Portal (Map)

The optional MAP gateway with Wi-Fi® hotspot provides access to commissioning, configuration and maintenance logs using a smart device for fewer trips to the job sit or roof to diagnose issues.

A Mobile Access Portal (MAP) gateway providing access to a YORK packaged rooftop unit via a smart device.

Technical Resources

3-6T Small Sunline A/C & HP

Consumer Brochure - Sunline™ Series 3 thru 6 Ton Single Package Rooftop Units


3-6T Small Sunline A/C & HP

Small Sunline XN 036-060 Installation and Operation Manual




World Class Training With Ducted Systems Academy™.

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