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CNT-SVX12C-EN
Installation and
Operation
Tracer ZN517
Unitary Controller
Installation and
Operation
Tracer
™
ZN517
Unitary Controller
CNT-SVX12C-EN
April 2005
CNT-SVX12C-EN
Tracer ZN517 Unitary Controller Installation and Operation
This guide and the information in it are the property of American Standard Inc. and may not be used or reproduced in whole or in part,
without the written permission of American Standard Inc. Trane, a business of American Standard, Inc., has a policy of continuous
product and product data improvement and reserves the right to change design and specification without notice.
Although Trane has tested the hardware and software described in this guide, no guarantee is offered that the hardware and software
are error free.
Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any per-
son of such revision or change.
Trane may have patents or patent applications covering items in this publication. By providing this document, Trane does not imply
giving license to these patents.
The following are trademarks or registered trademarks of Trane: Trane, Tracer, Tracker, Rover.
The following are trademarks or registered trademarks of their respective companies or organizations: LonTalk and Neuron
from Echelon Corporation.
Printed in the U.S.A.
© 2005 American Standard Inc. All rights reserved.
™
®
™
®
CNT-SVX12C-EN
NOTICE:
Warnings and Cautions appear at appropriate sections throughout this manual. Read these carefully:
WARNING
Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
CAUTION
Indicates a situation that may result in equipment damage or property damage.
The following format and symbol conventions appear at appropriate sections throughout this manual:
IMPORTANT
Alerts installer, servicer, or operator to potential actions that could cause the product or system to
operate improperly but will not likely result in potential for damage.
◆ This symbol precedes a procedure that consists of only a single step.
Note:
A note may be used to make the reader aware of useful information, to clarify a point, or to describe
options or alternatives.
CNT-SVX12C-EN i
Table of contents
Chapter 1 Overview and specifications . . . . . . . . . . . . . . . . . . 1
Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Storage environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Agency listing/compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Factory default temperature setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Additional components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Zone temperature sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Discharge air temperature sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Damper actuators (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 2 Mounting the controller . . . . . . . . . . . . . . . . . . . . . 7
Location recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mounting recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3 Applications for the
2-heat/2-cool configuration. . . . . . . . . . . . . . . . . . 9
Wiring requirements and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
DIP switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Binary outputs for 2-heat/2-cool applications . . . . . . . . . . . . . . . . . . . . 13
Binary output 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Overriding binary outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Binary inputs for 2-heat/2-cool applications. . . . . . . . . . . . . . . . . . . . . . 14
BI1: Occupancy or generic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
BI2: Fan status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table of contents
ii CNT-SVX12C-EN
Analog inputs for 2-heat/2-cool applications . . . . . . . . . . . . . . . . . . . . . 15
AI1: Universal 4–20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
AI2: Outdoor air temperature or generic temperature . . . . . . . . . . 17
DAT: Discharge air temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ZN: Zone temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SET: Temperature setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chapter 4 Sequence of operations for the 2-heat/2-cool
configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cascade zone control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Simplified zone control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Occupancy modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Occupied mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Unoccupied mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Occupied standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Occupied bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Timed override control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Outdoor air damper operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fan operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Peer-to-peer communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Economizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Discharge air tempering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Demand control ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Unit protection strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Filter-maintenance timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Fan off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Fan status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 5 Applications for the 4-cool configuration . . . . . . 27
Wiring requirements and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
DIP switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Binary outputs for 4-cool applications . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Binary output 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Overriding binary outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Binary inputs for 4-cool applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
BI1: Occupancy or generic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
BI2: Fan status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Analog inputs for 4-cool applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table of contents
CNT-SVX12C-EN iii
AI1: Universal 4–20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
AI2: Outdoor air temperature or generic temperature . . . . . . . . . . 35
DAT: Discharge air temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
ZN: Zone temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SET: Temperature setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Chapter 6 Sequence of operations for the 4-cool
configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cascade zone control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Simplified zone control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Occupancy modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Occupied mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Unoccupied mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Occupied standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Occupied bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Timed override control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Outdoor air damper operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Fan operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Peer-to-peer communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Economizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Discharge air tempering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Demand control ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Unit protection strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Filter-maintenance timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Fan off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Fan status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Chapter 7 Applications for the heat pump configuration . . 45
Wiring requirements and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
DIP switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Binary outputs for heat pump applications . . . . . . . . . . . . . . . . . . . . . . 49
Binary output 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Overriding binary outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Binary inputs for heat pump applications . . . . . . . . . . . . . . . . . . . . . . . 50
BI1: Occupancy or generic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
BI2: Fan status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Analog inputs for heat pump applications . . . . . . . . . . . . . . . . . . . . . . . 51
AI1: Universal 4–20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table of contents
iv CNT-SVX12C-EN
AI2: Outdoor air temperature or generic temperature . . . . . . . . . . 53
DAT: Discharge air temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
ZN: Zone temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
SET: Temperature setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Chapter 8 Sequence of operations for the heat pump
configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Power-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Cascade zone control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Simplified zone control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Occupancy modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Occupied mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Unoccupied mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Occupied standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Occupied bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Timed override control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Outdoor air damper operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Heating or cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Fan operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Compressor operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Reversing valve operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Economizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Discharge air tempering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Demand control ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Peer-to-peer communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Unit protection strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Filter-maintenance timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Fan off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Fan status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Chapter 9 PID control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
What PID loops do. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
PID calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Proportional calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Integral calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Derivative calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Sampling frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
PID loop action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Direct action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table of contents
CNT-SVX12C-EN v
Reverse action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Error deadband . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Adjusting error deadband for modulating outputs . . . . . . . . . . . . . 69
Adjusting error deadband for staged outputs . . . . . . . . . . . . . . . . . 69
Other PID settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Troubleshooting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Tips for specific problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Changing the sampling frequency . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Changing the gains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Chapter 10 Status indicators for operation and
communication. . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Test button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Manual output test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Service Pin button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Interpreting LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Diagnostic types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table of diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Chapter 11 General wiring information . . . . . . . . . . . . . . . . . . 81
Input/output terminal wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Wiring specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
HVAC unit electrical circuit wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 82
AC power wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Communication-link wiring and addressing . . . . . . . . . . . . . . . . . . . . . 86
Chapter 12 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Initial troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Diagnosing operational problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Table of contents
vi CNT-SVX12C-EN
CNT-SVX12C-EN 1
Chapter 1
Overview and specifications
This guide provides installation and configuration information for the
Tracer ZN517 unitary controller, as well as a description of its operations.
The overview includes a product description, specifications, and descrip-
tions of ancillary products that may be necessary.
Product description
The Tracer ZN517 is an application-specific controller that provides
direct digital, zone temperature control. The controller can operate as a
stand-alone device or as part of a building automation system (BAS).
Communication between the controller and a BAS occurs via a LonTalk
communication link, which is based on the LonTalk
®
protocol.
The controller is designed to be field-installed and is sent from the factory
configured for a 2-heat/2-cool application. You can change this configura-
tion using the DIP switches located on the circuit board. The Tracer
ZN517 supports the following three configurations:
• 2-heat/2-cool with optional economizer control
• 4-cool with optional economizer control
• Heat pump with optional economizer control
Features such as discharge air tempering and demand control ventilation
can be configured using the Rover service tool.
Dimensions
Plastic-cover model dimensions
For complete dimensional drawing, see Figure 1 on page 3.
• Height: 5.375 in. (137 mm)
• Width: 6.875 in. (175 mm)
• Depth: 2 in. (51 mm)
Note:
For information about using the Rover service tool, see the
Rover Operation and Programming guide (EMTX-SVX01B-
EN).
Chapter 1 Overview and specifications
2 CNT-SVX12C-EN
Metal-cover model dimensions
For complete dimensional drawing, see Figure 2 on page 3.
• Height: 9.0 in (25 mm)
• Width: 10.37in. (263 mm)
• Depth: 2.25 in. (58 mm)
Clearances
For wiring, ventilation, and maintenance, provide the following minimum
clearances for the module:
Plastic-cover model
(see Figure 1 on page 3)
• Front: 4.0 in. (102 mm)
• Each side: 1.0 in. (25 mm)
• Top and bottom: 4.0 in. (102 mm)
Metal-cover model
(see Figure 2 on page 3)
• Front: 24.0 in. (610 mm)
• Each side: 2.0 in. (51 mm)
• Top and bottom: 1.0 in. (25 mm)
Power
The transformer must meet the following minimum requirements for the
controller and its output devices:
• 19–30 Vac (24 Vac nominal)
• 50/60 Hz
• 9 VA and 12 VA maximum per binary output utilized
Operating environment
Operate a Tracer ZN517 unitary controller in an indoor environment that
meets the following requirements:
• Temperature: From –40°F to 160°F (–40°C to 70°C)
• Relative humidity: From 5–90%, noncondensing
Operating environment
CNT-SVX12C-EN 3
Figure 1. Plastic-cover model dimensions and clearances
Figure 2. Metal-cover model dimensions and clearances
1 in.
(25 mm)
4 in
(102 mm)
5.625 in
(143 mm)
6.31 in.
(160 mm)
4 in
(102 mm)
5.375 in (137 mm)
Clearances
Dimensions
4 in
(102 mm)
6.875 in
(175 mm)
2 in. (51 mm)
9 in.
(229 mm)
2 in.
(51 mm)
24 in.
(610 mm)
10.37 in.
(263 mm)
width with cover
1 in.
(25 mm)
2.25 in.
(58 mm)
2 in.
(51 mm)
1. 875 in.
(48 mm)
1 in.
(25 mm)
0.28 in.
(7 mm)
9 in.
(229 mm)
6.5 in.
(165 mm)
Clearances
Dimensions
1 in.
(25 mm)
10.25 in.
(260 mm)
width without cover
7 in.
(178 mm)
Chapter 1 Overview and specifications
4 CNT-SVX12C-EN
Storage environment
If you are storing a Tracer ZN517 unitary controller for a substantial
amount of time, store it in an indoor environment that meets the
following requirements:
• Temperature: From –40° to 185°F (–40° to 85°C)
• Relative humidity: From 5–95%, noncondensing
Agency listing/compliance
CE—Immunity: EN50082-2:1995
EN61000-6-2:1999
CE—Emissions: EN61000-3-2:1995
EN61000-3-3:1995
EN50081-1:1992 (CISPR 22)
EN55011:1998, Class B
UL and C-UL 916 listed:
Energy management equipment
UL 94-5V (UL flammability rating for plenum use)
FCC Part 15, Class A, CFR 47
Factory default temperature setpoints
The Tracer ZN517 unitary controller relies on a number of temperature
setpoints to control HVAC equipment. Table 1 gives the factory defaults
for these setpoints, which can all be edited with the Rover service tool or a
BAS.
Table 1. Factory default temperature setpoints
Setpoints
Factory defaults
°F (°C)
Default setpoints
Occupied cooling 74.0°F (23.3°C)
Occupied standby cooling 78.0°F (25.6°C)
Unoccupied cooling 85.0°F (29.4°C)
Occupied heating 71.0°F (21.7°C)
Occupied standby heating 67.0°F (19.4°C)
Unoccupied heating 60.0°F (15.6°C)
Occupied setpoint limits
Cooling setpoint high limit 110.0°F (43.3°C)
Cooling setpoint low limit 40.0°F (44.4°C)
Factory default temperature setpoints
CNT-SVX12C-EN 5
Heating setpoint high limit 105.0°F (40.6°C)
Heating setpoint low limit 40.0°F (44.4°C)
Discharge air limits
High limit 170.6°F (77.0°C)
Low limit 37.4°F (3.0°C)
Control point high limit 150.8°F (66.0°C)
Control point low limit 44.6°F (7.0°C)
Outdoor air damper setup
Economizer enable temperature 53.6°F (12.0°C)
Table 1. Factory default temperature setpoints
Setpoints
Factory defaults
°F (°C)
Chapter 1 Overview and specifications
6 CNT-SVX12C-EN
Additional components
The following components are required for proper equipment operation.
They are not included with the Tracer ZN517 unitary controller. Addi-
tional components may also be required besides those described in this
section, depending on your application.
Power transformer
A transformer providing 24 Vac is required to power the Tracer ZN517
unitary controller and associated output relays and valve and damper
actuators (see “AC power wiring” on page 85).
Zone temperature sensors
Table 2 shows some of the Trane zone temperature sensors that are sup-
ported by the Tracer ZN517 unitary controller. Contact your Trane sales
office for information about other compatible zone sensors.
Discharge air temperature sensors
Discharge air temperature sensors must be Trane 10 kΩ (at 25°C) ther-
mistors. The discharge air temperature (DAT) input may use a sealed
temperature sensor (part number 4190 1100) or a duct/immersion tem-
perature sensor (part number 4190 1103).
Damper actuators (optional)
Actuators cannot exceed 12 VA draw at 24 Vac. Use actuators with on/off
action and spring return (to normally open or closed position), based on
the desired default position.
Table 2. Trane zone temperature sensor options
BAS order
number
Zone
Timed override
buttons
Comm
jack
Setpoint
thumbwheel
Temperature
sensor
On Cancel
4190 1086 x x x
4190 1087 x
4190 1088 x x x x
4190 1089 x x
4190 1090 x x x x x
4190 1094 x x x
4190 7015
(stainless
steel wall
plate)
x
CNT-SVX12C-EN 7
Chapter 2
Mounting the controller
This chapter gives recommendations and requirements for mounting the
Tracer ZN517 unitary controller.
Location recommendations
For rooftop and heat pump applications, the controller can be mounted
inside the unit or at a convenient location inside the building. Trane
recommends locating the Tracer ZN517 unitary controller:
• Near the controlled piece of equipment to reduce wiring costs
• Where it is easily accessible for service personnel
• Where public access is restricted to minimize the possibility of tam-
pering or vandalism
Chapter 2 Mounting the controller
8 CNT-SVX12C-EN
Mounting recommendations
Mounting recommendations are as follows:
IMPORTANT
Mount the Tracer ZN517 unitary controller with the cover on to avoid
the possibility of damaging the circuit board during installation.
• Mount the controller in any direction, other than with the front of the
cover facing downward.
• Mount using the two
3
/
16
in. (4.8 mm) radius mounting holes provided
(see Figure 3). Mounting fasteners are not included.
• Attach the controller securely so it can withstand vibrations of associ-
ated HVAC equipment.
• When the controller is mounted in a small enclosed compartment,
complete all wiring connections before securing the controller in the
compartment.
Figure 3. Mounting the Tracer ZN517 unitary controller
/
