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CNT-SVX06B-EN
Installation and
Operation
Tracer
™
ZN511
Zone Controller
Installation and
Operation
Tracer
™
ZN511
Zone Controller
CNT-SVX06B-EN
April 2005
CNT-SVX06B-EN
CNT-SVX06B-EN
Tracer ZN511 Zone 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 American Standard Inc.: Trane, Tracer, Rover.
The following are trademarks or registered trademarks of their respective companies or organizations: BACnet from
ASHRAE; Neuron, LonMark, LonTalk, and LonWorks from Echelon Corporation; National Electrical Code form the National
Fire Proctection Association, Inc.
Printed in the U.S.A.
© 2005 American Standard Inc. All rights reserved.
™
®
™
®
CNT-SVX06B-EN
CNT-SVX06B-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-SVX06B-EN
CNT-SVX06B-EN i
Contents
Chapter 1 Overview and specifications . . . . . . . . . . . . . . . . . . 1
Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Storage environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Agency listing/compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Additional components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Zone temperature sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Water and duct temperature sensors . . . . . . . . . . . . . . . . . . . . . . . . . 4
Binary input switching devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Output relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Valve and damper actuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2 General wiring information . . . . . . . . . . . . . . . . . . . 7
Input/output terminal wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AC power wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Communication-link wiring and addressing . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 3 Mounting the controller . . . . . . . . . . . . . . . . . . . . 11
Location recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Operating environment requirements . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Mounting recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter 4 Applications for the heat pump configuration . . 13
Binary inputs for water-source heat pump applications . . . . . . . . . . . . 14
BI1: Low-temperature detection (circuit 2) . . . . . . . . . . . . . . . . . . . . 14
BI2: Condensate overflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
BI3: Occupancy or generic binary input . . . . . . . . . . . . . . . . . . . . . . 15
BI4 and BI5: High/low pressure cutout . . . . . . . . . . . . . . . . . . . . . . 16
Compressor contactor monitoring . . . . . . . . . . . . . . . . . . . . . . . 16
Compressor line-voltage monitoring . . . . . . . . . . . . . . . . . . . . . 18
High/low pressure switch monitoring . . . . . . . . . . . . . . . . . . . . 18
Analog inputs for water-source heat pump applications . . . . . . . . . . . 19
Contents
ii CNT-SVX06B-EN
ZN: Zone temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SET: Local set point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FAN: Fan mode input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
AI1: Leaving water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
AI2: Discharge air temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Binary outputs for water-source heat pump applications . . . . . . . . . . . 21
Generic binary output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Overriding binary outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Wiring requirements and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter 5 Sequence of operations for the heat pump
configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Power-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Random start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Zone temperature control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Occupancy modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Occupied mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Unoccupied mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Occupied standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Occupied bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Timed override control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Morning warm-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Morning cool-down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Heating or cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Fan operation and status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Compressor operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Outdoor air damper operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Reversing valve operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Peer-to-peer (master/slave) data sharing . . . . . . . . . . . . . . . . . . . . . . . . 30
Unit protection strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Smart reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Low-temperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Condensate overflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
High/low pressure cutout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Filter-maintenance timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Fan off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Contents
CNT-SVX06B-EN iii
Chapter 6 Applications for the 1 heat/1 cool
configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Binary inputs for 1 heat/1 cool applications . . . . . . . . . . . . . . . . . . . . . . 34
BI1: Low-temperature detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
BI2: Condensate overflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
BI3: Occupancy or generic binary input . . . . . . . . . . . . . . . . . . . . . . 35
Analog inputs for 1 heat/1 cool applications . . . . . . . . . . . . . . . . . . . . . 35
ZN: Zone temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SET: Local set point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
FAN: Fan mode input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
AI1: Entering water temperature sampling . . . . . . . . . . . . . . . . . . . 37
AI2: Discharge air temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Binary outputs for 1 heat/1 cool applications. . . . . . . . . . . . . . . . . . . . . 38
Generic binary output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Overriding binary outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Wiring requirements and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Chapter 7 Sequence of operations for the 1 heat/1 cool
configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Power-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Random start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Zone temperature control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Occupancy modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Occupied mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Unoccupied mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Occupied standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Occupied bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Timed override control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Morning warm-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Morning cool-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Heating or cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Entering water temperature sampling function. . . . . . . . . . . . . . . . . . . 51
Fan operation and status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Two-position valve operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Two-pipe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Four-pipe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Electric heat operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Outdoor air damper operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Peer-to-peer (master/slave) data sharing . . . . . . . . . . . . . . . . . . . . . . . . 54
Contents
iv CNT-SVX06B-EN
Unit protection strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Smart reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Low-temperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Condensate overflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Filter-maintenance timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Fan off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Chapter 8 Status indicators for operation and
communication . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Test button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Manual output test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Service button (pin). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Interpreting LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Clearing diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Manual (latching) diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Automatic (nonlatching) diagnostics . . . . . . . . . . . . . . . . . . . . . 66
Smart reset diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Informational diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Chapter 9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
CNT-SVX06B-EN 1
Chapter 1
Overview and specifications
This guide provides installation and configuration information for the
Tracer ZN511 zone 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 ZN511 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
unconfigured. You can configure the controller, using the PC-based Rover
service tool, to support either of the following configurations:
• Water-source heat pumps, one or two compressors
• 1 heat/1 cool fan coils with two-position valves
Storage environment
If a Tracer ZN511 zone controller is to be stored for a substantial amount
of time, store it in an indoor environment that meets the following
requirements:
• Temperature: –40° to 185°F (–40° to 85°C)
• Relative humidity: 5–95%, noncondensing
Note:
For information about using the Rover service tool, see the
Rover Installation/Operation/Programming guide (EMTX-
SVX01A-EN).
Chapter 1 Overview and specifications
2 CNT-SVX06B-EN
Agency listing/compliance
CE—Immunity: EN 50082-1:1997; EN 50082-2:1995
CE—Emissions: EN 50081-1:1992 (CISPR 22) Class B
UL and C-UL 916 listed: Energy management system
UL 94-5V (UL flammability rating for plenum use)
FCC Part 15, Class A
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)
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 controller:
Plastic-cover model
• Front: 4.0 in. (102 mm)
• Each side: 1.0 in. (25 mm)
• Top and bottom: 4.0 in. (102 mm)
Metal-cover model
• Front: 24.0 in. (610 mm)
• Each side: 2.0 in. (51 mm)
• Top and bottom: 1.0 in. (25 mm)
Clearances
CNT-SVX06B-EN 3
Figure 1. ZN511 plastic-cover model dimensions and clearances
Figure 2. ZN511 Metal-cover model dimensions and clearances
1 in.
(25 mm)
4 in.
(102 mm)
5.625 in.
(143 mm)
5.375 in. (137 mm)
1 in.
(25 mm)
Clearances
Dimensions
6.31 in.
(160 mm)
4 in.
(102 mm)
4 in.
(102 mm)
6.875 in.
(175 mm)
2 in. (51 mm)
1 in.
(25 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)
7 in.
(178 mm)
1 in.
(25 mm)
1.875 in.
(48 mm)
6.5 in.
(165 mm)
10.25 in.
(260 mm)
width without cover
0.28 in.
(7 mm)
9 in.
(229 mm)
Clearances
Dimensions
Chapter 1 Overview and specifications
4 CNT-SVX06B-EN
Additional components
The Tracer ZN511 zone controller may require the use of additional com-
ponents for monitoring and proper control of the associated fan coil or
heat pump. Using these components depends on the application. They are
not included with the Tracer ZN511 zone controller.
Power transformer
A transformer providing 24 Vac is required to power the Tracer ZN511
zone controller and associated output relays and valve and damper actua-
tors.
Zone temperature sensors
Table 1 shows the Trane zone temperature sensors that are supported by
the Tracer ZN511 zone controller.
Water and duct temperature sensors
Temperature sensors must be Trane 10 kΩ (at 25°C) thermistors. Enter-
ing water (fan coil), leaving water (heat pump), and discharge air inputs
may use a sealed temperature sensor (part number 4190 1100).
Binary input switching devices
Occupancy, condensate overflow, and low-temperature inputs accept
switching devices that may have normally open or normally closed dry
contacts.
Table 1. Tracer zone temperature sensor options
BAS order
number
Use
Fan Zone
Timed
override
buttons
Comm
jack
High Med Low Auto Off
Set-
point
thumb-
wheel
Te m p e -
ature
sensor
On
Can-
cel
4190 1087 Any x
4190 1088 Any x x x x
4190 1090 Heat pump x x x x x
4190 1094 Heat pump x x x
4190 1095 Unit vent x x x x x x x x
4190 1115Fan coil xxxxx x x x x x
4190 1116 Unit vent x x x x x x x x x
4190 1117 Any x x x x x x x
Additional components
CNT-SVX06B-EN 5
Current-sensing switches must be capable of switching 24 Vac for heat-
pump-compressor circuit applications (see “Compressor line-voltage mon-
itoring” on page 18). The current-sensing switch must sense line voltage
current as low as 2 A. This amperage is common for a
1
/
2
ton compressor,
which is typically the smallest compressor on a heat pump.
Output relays
Relays for fan (speed) control connected to the Tracer ZN511 binary out-
puts cannot exceed 12 VA (0.5 A) current draw at 24 Vac.
Valve and damper actuators
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.
Chapter 1 Overview and specifications
6 CNT-SVX06B-EN
CNT-SVX06B-EN 7
Chapter 2
General wiring information
This chapter provides specifications and general information about wir-
ing the Tracer ZN511 zone controller. The controller requires wiring for:
• Input/output terminals
• AC power to the controller
• Communication-link wiring, if the controller is to communicate with a
building automation system (BAS)
Input/output terminal wiring
All input/output terminal wiring for the Tracer ZN511 zone controller is
application specific and dependant on the configuration of the controller.
Input/output terminal wiring must meet the following requirements:
• All wiring must comply with the National Electrical Code and local
codes.
• Use only 18 AWG, twisted-pair wire with stranded, tinned-copper
conductors. (Shielded wire is recommended.)
• Binary input and output wiring must not exceed 1000 ft (100 m).
• Analog input wiring must not exceed 300 ft (100 m).
• Do not run input/output wires in the same wire bundle with any ac
power wires.
For application-specific wiring information and diagrams, see Chapter 4,
“Applications for the heat pump configuration”, and Chapter 6, “Applica-
tions for the 1 heat/1 cool configuration”.
Chapter 2 General wiring information
8 CNT-SVX06B-EN
AC power wiring
CAUTION
Complete input/output wiring before applying power to the Tracer
ZN511 zone controller. Failure to do so may cause damage to the con-
troller or power transformer due to inadvertent connections to power
circuits.
CAUTION
Make sure that the 24 Vac transformer is properly grounded. Failure to
do so may result in damage to equipment and/or personal injury.
▲IMPORTANT
Do not share 24 Vac between controllers.
All wiring must comply with National Electrical Code and local codes.
The ac power connections are in the top left corner of the Tracer ZN511
zone controller (see Figure 3).
Figure 3. Connecting ac power wires to the controller
If you are providing a new transformer for power, use a UL-listed Class 2
power transformer supplying a nominal 24 Vac (19–30 Vac). The trans-
former must be sized to provide adequate power to the Tracer ZN511 zone
controller (9 VA) and output devices, including relays and valve actuators,
to a maximum of 12 VA per output utilized. The Tracer ZN511 may be
powered by an existing transformer integral to the controlled heat pump
or fan coil, provided the transformer has adequate power available and
adequate grounding is observed.
24 Vac unit
transformer
H
N
/
