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Preface – Bell & Gossett S14333 Technologic 5500 Series ZoneSav Controller User Manual

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Preface

The following manual describes the microprocessor
based ZoneSav Controller. This unit is in the tradition
of the other members of the Technologic Control
Panels as it incorporates many original, novel, and
proprietary features that may only be found on B&G
controllers. Some of these features require special
emphasis here.

The controller is best described as a specific purpose
programmable valve controller. This means that the
hardware and software have been created for the con-
trol and diagnostics of valves with consideration for

their inherent characteristics. This results in an opti-
mum valve controller without the cost of general pur-
pose control hardware. Software is dedicated and
established for the unit only after extensive testing.
Changes to this software are not taken lightly and
must pass rigid version control.

The controller has the unique analog input protection
of other members of the control family. In the event of
a short circuit condition the current limit circuitry pre-
vents failure of the analog input components.