YVFA Free Cooling Variable Speed Screw Chiller

150-500 TR (525-1,750 kW)

The York YVFA is a free-cooling screw chiller that minimizes operating cost by combining superior engineering and technology with a packaged design that's simple to own and operate.

York variable-speed drive
Air-to-liquid, free-cooling coils
Intelligent controls optimize energy

YVFA Free Cooling Variable Speed Screw Chiller

Simple to Own and Operate

Advanced technologies, including a variable speed drive compressor, energy optimized hybrid cooling mode and air-to-liquid free cooling coils designed by our heat transfer experts, are intelligently controlled to maximize efficiency year-round.

Benefits

EFFICIENCY

Hybrid mode combines the best technologies to boost part-load efficiency.

SIMPLICITY

Packaged controls and single-point convenience simplify operation.

RELIABILITY

Get assured performance from the variable-speed leaders who have over three generations of expertise.

FAST PAYBACK

Payback possible in as little as two years – and we can prove it.

Features

Packaged controls for single-point convenience to easily accommodate process or building changes
Variable-frequency inverter technology enables a zero-inrush soft start and a high-displacement power factor across the entire operating range
Performance is assured by AHRI certification, the first for an air-cooled screw chiller with free-cooling
Open-loop and closed-loop design solutions for different building systems

Intelligent controls also optimize the balance between using fans to move air over the free-cooling coils
Quick Start option achieves full load after a power loss in four minutes or less
Integrated air-to-liquid, free-cooling coils, designed by our heat transfer experts, reduce or eliminate the need for mechanical cooling when conditions allow
115-500 TR, 400-1750 kW

Quick Start

After power is interrupted, it can take a standard chiller up to 10 minutes to restart. But with the Quick Start feature, YVFA chillers can restart within seconds after power is restored. YVFA chillers feature an industry-leading compressor restart (upon power being restored) of 34 seconds.

Because YVFA chillers contain a variable-speed drive, there is no inrush of current. As a result, all compressors can be started together. This allows a faster ramp-up to full capacity than possible with a typical chiller.

Learn About Quick Start

Hybrid Mode Technology

Traditional free-cooling chillers use fixed-speed compressors that simply shut off when ambient temperatures are low enough. But this only saves energy when the compressors are completely shut off. Johnson Controls has pioneered a unique Hybrid Mode technology that optimizes energy use year-round. Using free-cooling coils to reduce the mechanical cooling load at a much higher temperature, the VSD compressors reduce speed and energy use more of the year for long-term performance and efficiency.

Free-cooling Technology

YVFA free-cooling, air-cooled chillers deliver the industry’s highest leaving water temperature to provide more tonnage in the same footprint as competing systems. And intelligently controlled free-cooling bypass valves reduce pump energy when free-cooling is not beneficial. These technologies enable the chiller to move from mechanical to hybrid to free-cooling modes automatically, further minimizing energy use.

CHILLER SECURITY

The YORK® YVFA Air-cooled Chiller has received ISASecure® CSA certification through Exida®, meeting rigorous international standards for cybersecurity in industrial automation and control systems. This certification demonstrates our commitment to helping facility teams safeguard critical infrastructure against evolving threats.

Certification to the ISA/IEC 62443-4-2 standard provides assurance that Johnson Controls and the YORK® brand adhere to stringent ISASecure technical security requirements for IACS components.
Certification to the ISA/IEC 62443-4-1 standard provides assurance that Johnson Controls and the YORK® brand adhere to stringent ISASecure development lifecycle requirements.

The YORK® YVFA Air-cooled Chiller is one of many chiller models from Johnson Controls equipped with the Chiller Access Manager to receive ISASecure certification from Exida®.The YORK® Chiller Access Manager provides YORK® YVFA Air-cooled Chiller owners and operators with control and visibility about who is operating, maintaining and servicing their chiller – ensuring protection of an asset that is critical to facility operation.

Learn About Chiller Access Manager

Technical Resources

Document Name

Description

Language

Resource Type

Brochure

CHI_BRE_YORK YVFA Air-Cooled Screw Chiller (English)

YVFA Brochure

English Brochure

VIEW

Engineering Guide

YVFA0159, YVFA209, YVFA0259, YVFA0289, YVFA0309, YVFA0359, YVFA409, YVFA459 Open and Closed Loop Style A 50 and 60 Hz Variable Speed Drive Screw Compressor and Integrated Free Cooling (English)

YVFA0159, YVFA209, YVFA0259, YVFA0289, YVFA0309, YVFA0359, YVFA409, YVFA459 Open and Closed Loop Style A 50 and 60 Hz Variable Speed Drive Screw Compressor and Integrated Free Cooling

English Engineering Guide

VIEW