Trane Tracer AdaptiView Operation Guide

CTV-SVU01B-EN • Tracer AdaptiView Display Operations Guide 39
Equipment Settings
Setpoint Sources
Some setpoints can be controlled from more than one source. These are referred to as
arbitrated setpoints and are identified by footnote (a) in Ta bl e 7 . Arbitrated setpoints can
be:
• Communicated from a building automation system (BAS)—Refers to a Trane or other
BAS that can communicate with chiller controls over a network.
• Set by an external control source (Ext)—Refers to inputs that are hard-wired directly
to local chiller controls, carrying low-voltage binary (On/Off) or analog (0–10 Vdc,
4–20 mA) signals.
• Set at the front panel (FP)—Refers to inputs that are entered by an operator using the
Tracer AdaptiView display or by a technician using the Tracer TU service tool.
Setpoint Source Arbitration
The Tracer UC800 uses a process referred to as setpoint source arbitration to prioritize
the selection of the setpoint source. See Tab le 8 for an explanation of how this process
works.
Power Up Start Delay Time Valid numerical range appears on screen.
Power Demand Time Period Valid numerical range appears on screen.
(a) This is an arbitrated setpoint. For an complete explanation of arbitrated setpoints, see “Setpoint Sources,” p. 39.
Table 7. Chiller Settings menu screen: Buttons and available setting options (continued)
Buttons Available setting options
Table 8. Setpoint source choices and corresponding arbitration
Priority BAS/Ext/FP Ext/FP Front Panel
First Setpoint from the BAS is used. Setpoint from a external control
source is used.
Setpoint from the front panel is used.
Note: Any setpoint from a BAS or
external control source is ignored.
Second If no BAS setpoint is available (for
example, BAS communication has
never been established), a
setpoint from an external control
source is used.
If no externally controlled setpoint is
available, a setpoint from the front
panel is used.
Note: Any setpoint from a BAS is ignored.
None
Third If no BAS nor external setpoint is
available (for example, BAS
communication has never been
established), a setpoint from the
front panel is used.
None None
Note 1. For service or troubleshooting, it may be helpful to set the setpoint source to front panel to isolate the chiller from other control sources.
Note 2. If BAS communication was established and then lost, in most instances the BAS values remain and can be used by the chiller controller.

Trane Tracer AdaptiView Specifications

General

Brand	Trane
Model	Tracer AdaptiView
Category	Monitor
Language	English