Bell & Gossett Introduces New ZoneSav™ Controller

Morton Grove, IL–Jun 24, 2008
Bell & Gossett has introduced a new Technologic® 5500 ZoneSav™ Controller that is designed to optimize zone/bridge flow and distribution loop Delta T without sacrificing humidity control and comfort.

The Technologic 5500 ZoneSav™ Controller now makes it possible to “decouple” zones thermally as well as hydraulically from the chilled or hot water distribution systems. Ideal for use with chilled water or heating water distribution systems, the controller is suitable for either two- or three-way control valve applications.

By introducing a true tertiary zone valve with a de-coupling bridge, a tertiary zone pump and a ZoneSav valve controller, the new system allows users to solve several of the shortcomings of large distribution systems that have grown beyond their original designs, by eliminating:

· Weak differential pressures in remote branches of the system
· Excessive differential pressures in loads near the main distribution plant
· Wild flow control during outage recovery ZoneSav also provides:
· Diversity control during peak demand periods
· Predictable performance when additional loads are added to the system

Standard features of the ZoneSav Controller include a wall mounted NEMA 1 enclosure, temperature inputs/readouts, adjustable PID functions, automatic or manual system control, system purge, PID auto-tuning functions and energy optimization, as well as valve limit user-accessible parameters. All ZoneSav Controllers feature multiple modes of operation, including:

· Temperature/Humidity Optimization
· GPM/BTU Readout
· Flow Limit Control (Zone Flow limiting)
· Differential temperature/temperature optimization

The ZoneSav product offering is complemented with numerous accessories and options including temperature detectors with 4-20ma output, control valves, actuator and valve positioner (electric or pneumatic), insertion flow meter with pulse and 4-20ma output, and digital and analog logic input modules for expanded I/O points.

For more information, contact your local Bell & Gossett Representative or visit

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Bell & Gossett is a brand of ITT Corporation, the leading manufacturer of centrifugal pumps, hydronic specialties, heat exchangers, condensate handling equipment, and packaged systems for variable and constant speed pumping, heat transfer and pressure boosting.

For more information contact ITT at 8200 N. Austin Avenue, Morton Grove, IL 60053; phone 847/966-3700; fax 847/966-9052; or visit