Small and Strong

Electrification demands – and the need for versatile heat pump solutions – are growing fast. In fact, analysts project a double-digit increase in global heat pump adoption – over 30% in some countries.¹

As part of the established Johnson Controls YORK® Water Cooled chillers, the 400-ton capacity CYK-400 model brings proven high-performance capability to applications where space is limited. It’s a strong fit for high‑efficiency, high‑temperature applications.

Building on a proven legacy of more than 150 years, the 400‑ton capacity CYK-400 is the most compact model in the YORK® CYK range. It even offers the same world‑class performance as larger units in a condensed footprint. And if you’re heading to AHR Expo in Las Vegas, you’ll be able to learn more about this unit alongside our full portfolio of HVAC and Building Automation innovations.

Designed for high‑head, high‑temperature applications, the CYK-4000 delivers hot water up to 180°F (82°C) while simultaneously supplying chilled water from the same equipment. This makes it an ideal solution for commercial buildings, universities, hospitals, industrial processes, and district energy systems. It delivers serious performance in a smaller size:

• 400 tons (1,406 kW) of cooling capacity
• 7,000 MBH (2,051 kW) of heating capacity
• Combined COP (simultaneous mode): 4.9 @ 42 °F (5 °C) / 180 °F (82 °C)40% turndown with the VSD option
• 3 to 5 times more efficient than conventional boiler/chiller setups, reducing operational costs up to 50% compared to a traditional boiler and chiller combination
• ASME and UL/ETL certifications

With low‑GWP refrigerant options (R‑1234ze and R‑515B) and an optional patented double‑bundle condenser, the system manages part‑load conditions with exceptional efficiency. It extends the application range of the established CYK line and brings high performance to buildings with smaller heating and cooling demands.

As organizations continue to replace aging boilers and reduce operational carbon, the CYK-400 gives them a powerful, right‑sized path forward.

Heading to AHR Las Vegas? Innovation you can see, touch, and experience

If you’re looking to accelerate your electrification strategy, the Johnson Controls YORK® CYK is only the beginning. Visit us at the AHR Expo in Las Vegas to see how our full HVAC and Building Automation portfolio is shaping the future of high‑performance, energy‑efficient buildings. Our experts will be on hand to walk through performance, applications, and how this smaller sibling can make a big impact in your next project.

Sources:

1. "Heat Pump Market," Markets and Markets.