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Cooling tower and condenser pump plant controller · BACnet points list

Armstrong Fluid Technology Design Envelope Integrated Tower Controller (ITC 9521) BACnet points list

Updated 6 November 2026

Manufacturer

Armstrong Fluid Technology

Model

Design Envelope Integrated Tower Controller (ITC 9521)

Equipment

Cooling tower and condenser pump plant controller

Equipment type

Cooling towers & fluid coolers

BACnet objects

210 (44 writable)

Transport

—

Firmware

BACnet communication interface Rev 17.111

Also known as

ITC 9521, ITC9521, Design Envelope ITC, Integrated Tower Controller, 82.21

Source document

Design Envelope Integrated Tower Controller Data points (BACnet Communication Interface Rev 17.111) · 82.21 · rev. 2018-07-17

Reference only, provided as-is: verify against Armstrong Fluid Technology’s current documentation and the live device before use. Not official Armstrong Fluid Technology information. Terms of use.

Armstrong Fluid Technology Design Envelope Integrated Tower Controller (ITC 9521) BACnet objects

Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.

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Integration notes

• The data-points sheet titles the table BACnet but does not say whether it is BACnet IP or MS/TP.
• Mode/Selector AVs: 0 = Not Used, 1 = Hand, 2 = Off, 3 = Auto (writes limited to 1-3). Duty/standby, running status and valve position status AIs are coded; the codes are in each point's states.
• Units for temperatures, pressures and flows follow the controller's unit setting (the PDF lists the options).
• Some Speed Reference/Speed Feedback pairs share one range cell in the PDF; both are given 0-100 %.
• The PDF table is on pages 10-15.

Questions about the Armstrong Fluid Technology Design Envelope Integrated Tower Controller (ITC 9521)

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Source: Design Envelope Integrated Tower Controller Data points (BACnet Communication Interface Rev 17.111) · 82.21 · rev. 2018-07-17. Object names, instances and units are reproduced as published; descriptions are our own.