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Trane Tracer ZN.520 User Manual
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CN
T
-SVX04A-EN
41
Po
w
e
r
The T
racer
ZN.520 z
one controller is po
wered by 24 V
A
C. T
wo 0.25-inc
h quic
k-
connect
terminals are provi
ded for 24 V
AC
connection to the boa
rd.
Figure
3
T
rac
er ZN.5
20 zone c
ontroller
power requirem
ent
Note:
Board terminal
s TB4-1 and TB4-2
are connection
s for the T
racer ZN.52
0
zo
ne controller generic b
inary output, or baseboa
rd heat control.
These
connections are not e
xtra pow
e
r terminals
.
ZN.520
42
44
Table of Contents
Table of Contents
5
Introduction
9
The Trane Family of Tracer Zone Controllers
9
Supported Products
10
Macon, Georgia, Business Unit
10
Waco, Texas, Business Unit
11
Features
12
Circuit Board
13
Physical Specification
14
Configurations
17
Binary Outputs
18
General Description
18
Example Applications
19
Generic Binary Output/Baseboard Heat Output
27
Output Overrides
27
Analog Outputs
27
Binary Inputs
28
Condensate Overflow
29
Low Coil Temperature Detection
29
Fan Status
29
Occupancy
30
Generic Binary Inpu
31
Defrost
32
Analog Inputs
33
Analog Input Summary
33
Space Temperature
33
Local Setpoint
33
Fan Mode Input
34
Entering Water Temperature
35
Discharge Air Temperature
35
Outdoor Air Temperature
36
Generic Temperature Input
36
Universal 4-20 Ma Input
36
Zone Sensor
38
Space Temperature Measurement
38
Internal and External Setpoint Adjustment
38
Fan Switch
40
On/Cancel Buttons
40
Communication Jack
40
Zone Sensor Wiring Connections
41
Communications
42
Power
43
Input/Output Summary
44
Sequence of Operation
45
Power-Up Sequence
46
Setpoint Operation
46
Setpoint Selection
46
Occupied and Unoccupied Operation
49
Occupied Mode
49
Unoccupied Mode
49
Occupied Standby Mode
50
Occupied Bypass Mode
50
Occupancy Sources
51
Determining the Occupancy Mode
51
On and Cancel Buttons on the Zone Sensor
53
Occupancy Binary Input
53
Modulating/Cascade Control
54
Heating or Cooling Control Mode Operation
55
Heating and Cooling Changeover Logic
56
Cooling Operation
58
Heating Operation
59
Coil Changeover
60
Entering Water Temperature Sampling Function
61
Fan Operation
62
Exhaust Fan/Damper Operation
65
Valve Operation
65
Two-Position Damper Operation
68
Modulating Outdoor Air Damper Operation
69
Face and Bypass Damper Operation
71
DX Operation
72
Electric Heat Operation
72
Output Overrides
72
Fan Status
73
Filter Status
73
Data Sharing
74
Other Modes
74
Configuration
78
Configurable Parameter
78
Application Information
85
Stand-Alone
85
Stand-Alone Peer-To-Peer
86
Troubleshooting
89
LED Operation
89
Manual Output Test
90
Diagnostics
94
Questionable Unit Operation
98
Appendix
103
Hardwired Setpoint Adjustment
103
Hardwired Thermistor Values
103
Binary Configuration
104
Unit Operation Based on the Effective Heat/Cool Output
105
Data Lists
107
Other manuals for Trane Tracer ZN.520
Installation Owner Diagnostics
78 pages
5
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Trane Tracer ZN.520 Specifications
General
Brand
Trane
Model
Tracer ZN.520
Category
Controller
Language
English
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