GFG-S / GXG-S / GSG-S Series

Gear Driven Fixed Speed Centrifugal Chiller

GFG-S / GXG-S / GSG-S Series

Gear Driven Fixed Speed Centrifugal Chiller

The GFG/GXG/GSG-S series is a lineup of gear-driven high-efficiency centrifugal chillers known for their reliability, compact size, and quiet operation. The fixed-speed version of this chiller operates at a constant speed that typically meets the peak cooling load of the building.
GFG-S / GXG-S / GSG-S Series_0

Achieving High-Efficiency with Our Key Technologies

Advanced technology has enabled the GFG/GXG-S centrifugal chillers series to achieve a maximum COP of 7.0. Our High-Efficiency refrigerant cycle enhances refrigerating cycle efficiency and compressor efficiency by utilizing a refrigerant economizer with a 2-stage compressor equipped with 2 impellers.
GFG-S / GXG-S / GSG-S Series_1

Compact centrifugal chillers with lightweight design

Our top-class, compact gear-driven chiller offers several benefits, including lightweight design, improved flexibility in installation, space-saving in the machine room, easy carry-in to the machine room, suitability for replacing long-operating chillers, and a significant reduction in refrigerant volume.
GFG-S / GXG-S / GSG-S Series_2

Reliable centrifugal chiller with easy operation touch panel

Our reliable centrifugal chiller has a touch panel control panel designed for easy operation and troubleshooting, featuring a 10.4-inch color screen. The chiller panel control allows you to monitor various operating data graphs during the chiller operation, with trend data graphs available for up to 40 hours (updated every hour).

You can also access and store operation history for the past 12 hours (updated every hour), as well as failure and alarm history for the latest 6 times each. In case of failure, a handling guide is provided. Additionally, an automatic restart function after an instantaneous power failure is available as an option. This compact centrifugal chiller control panel is equipped with an RS485 communication port and is compatible with Building Management Systems using the MODBUS RTU protocol. This feature means the chiller can be integrated into a larger building automation system, allowing for centralized monitoring and control of various HVAC building systems.

Additionally, the chiller is designed to quickly restart after a power failure of less than 10 seconds. This feature ensures that the chiller can continue to operate efficiently without requiring manual intervention, which can help prevent disruptions in building operations. Once power is restored, the high-efficiency centrifugal chiller automatically starts up and returns to normal operation as quickly as possible.
GFG-S / GXG-S / GSG-S Series_3

Reliable centrifugal chiller

The chiller has several unique features that enhance its reliability, such as a high-reliability lubrication system, a key-free impeller coupling system, accurate chilled water temperature control within ±0.2°C, continuous oil recovery with an automatic refrigerant cleaner, and prevention of oil degradation by removing residual water with a filter dryer.

One of the main features of the High-Reliability Lubrication System in the chiller is its direct refrigerant cooling of the lubrication oil in the oil cooler without any cooling water piping. This feature is a critical contributor to the chiller's reliability and longevity.
GFG-S / GXG-S / GSG-S Series_4

Fixed-speed chiller with a wider operating range

The chiller is designed to maintain stable operation even when faced with challenging conditions such as rising condenser pressure due to high cooling water temperatures in hot summers or tube fouling.
GFG-S / GXG-S / GSG-S Series_5

Constant-speed centrifugal chiller with surge protection

The chiller adopts the strict criteria specified in JIS standards to ensure a stable operation under high cooling water temperatures. Additionally, its 3D 2-stage impeller enables steady operation even at low cooling loads or high cooling water inlet temperatures, effectively preventing the occurrence of a surge. steady

Brochures and catalogues: GFG-S / GXG-S / GSG-S Series

Catalogues, brochures and other documentation. If you need any more information, please get in touch.