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LO manual Appendix, Factory Piping Packages
Models:
LO
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Troubleshooting
Install
Fan Mode Switch Typical Wiring Diagram
Control Device Replacement
Dimension
Maintenance
Fan Configuration
Connecting field piping to coil
Resetting Diagnostics
Diagnostics
Page 128
Image 128
Appendix
Factory Piping
Packages
Automatic Circuit Setter (C)
128
UNT-IOM-6
Page 127
Page 129
Page 128
Image 128
Page 127
Page 129
Contents
UniTrane Fan-CoilRoom Conditioners
Force Flo Cabinet Heaters Sizes
Low Vertical Fan-Coils Sizes
UNT-IOM-6
Table of Contents
General Information
Cabinet Styles
Model A
Model C
Model E
Model H
Model K
Model M
Model J
model number
Model Number Description
detailed explanation of the
Model Number Description
UNT-IOM-6
UNT-IOM-6
Receiving and Handling
UNT-IOM-6
Jobsite Storage
UNT-IOM-6
Installation Considerations
ο1. Clearances
ο2. Structural Support
ο3. Level
Service Access
Vertical or Low Vertical
Concealed or Vertical
Vertical or Low
Installation Checklist
ο ο ο
Installing the Unit
Vertical Units
filters in place may cause motor overload
Horizontal Units
CAUTION: All unit panels and filters must be in
Table 1. Unit Operating Weights, pounds kg
Unit
Cabinet
Concealed
UNT-IOM-6
Cabinet units
Recessed units
Figure 5. Trim ring assembly installation
UNT-IOM-6
Startup Checklist
External Insulating Requirements
Piping
Units with Hydronic Coil Connections Only
Piping Considerations
Connecting field piping to coil
Units with Steam Coils
UNT-IOM-6
UNT-IOM-6
Piping Considerations
Factory Piping Package Connections
Connecting Water Piping to Factory Piping Package
Installing the Auxiliary Drain Pan
Connecting the Condensate Drain
UNT-IOM-6
Condensate Overflow Detection Device
Automatic Changeover Sensor
Automatic Electric Heat Lockout Switch Fan-coil
Venting the Hydronic Coil
UNT-IOM-6
Balancing The Manual Circuit Setter Valve
If the piping package has modulating valves
UNT-IOM-6
Balancing The Auto- matic Circuit Setter Valve
Table 2. Automatic Circuit Setter Flow Rate Range
Valve gpm
Pressure Drop Range psig
Duct Connections
Ductwork Recommendations
Supply Power Wiring
Electrical Connections
·Vertical cabinet & recessed units
·Vertical concealed & all horizontal units
1. Power & ground inside of control box
Control Interconnection Wiring
Electrical Grounding Restrictions Wall Mounted
Table 3. Maximum Wiring Distances, ft m
Wire Size Range
Installing Wall Mounted Controls
Fan Mode Switch Installation
Zone Sensor Installation
UNT-IOM-6
Figure 25. Wall mounted zone sensor dimensions
UNT-IOM-6
Wall mounted zone sensor Model # Digit 31 = W
Split-mountedoption
Sequence of Operations
Fan Mode Switch
Manual Fan Mode Switch
Sequence of Operations
Tracer ZN.010 and ZN.510
Tracer ZN.010 and ZN.510
Power-UpSequence
Entering Water Temperature Sampling Function
Operating Information
Coil Water Temperature
BIP1: Low Temperature Detection Option
Binary Inputs
BIP2: Condensate Overflow Detection Option
BIP3: Occupancy Sensor
Binary Outputs
Tracer ZN.010 and ZN.510
Table 5. Occupancy Sensor State Table
Sensor Type
Zone Sensors Fan Mode Switch
Analog Inputs
Tracer ZN.010 and ZN.510
Table 7. Analog Inputs Available
Supply Fan Operation
Default Setting
Tracer ZN.010 and ZN.510
Table 8. Fan Mode Operation
Troubleshooting
Red Service LED
LED Activity
Table 10. Red Service LED Activity
Yellow COMM LED
Green STATUS LED
Tracer ZN.010 and ZN.510
Table 11. Green STATUS LED Activity
Tracer ZN.010 and ZN.510
Manual Output Test Procedure
Manual Output Test
Tracer ZN.010 and ZN.510
Steps
Cool Output
Heat Output
Diagnostics
Table 14. Controller Diagnostics
Diagnostic
Tracer ZN.010 and ZN.510
Resetting Diagnostics
Automatic Reset by the Controller
Cycling Power to the Controller
Manual Output Test
UNT-IOM-6
Trane’s Service Tool, Rover Alarm Reset
Tracer ZN.010 and ZN.510
Troubleshooting
Tracer ZN.010 and ZN.510
Table 15. Fan Outputs do not Energize
Probable Cause
Tracer ZN.010 and ZN.510
Table 16. Valves Stay Closed
Probable Cause
Explanation
Tracer ZN.010 and ZN.510
Table 17. Valves Stay Open
Probable Cause
Explanation
Tracer ZN.010 and ZN.510
Table 18. Electric Heat Not Operating
Probable Cause
Explanation
Tracer ZN.010 and ZN.510
Table 19. Fresh Air Damper Stays Closed
Probable Cause
Explanation
Tracer ZN.010 and ZN.510
Table 20. Fresh Air Damper Stays Open
Probable Cause
Explanation
Tracer Summit Communication Wiring
Tracer ZN.520
Tracer ZN.520
Sequence of Operations
Service Communication Wiring
Wall Mounted Zone Sensor Module
Zone Sensors Without Interconnecting Wiring
Tracer ZN.520
Tracer ZN.520
Tracer ZN.520 Unit Start-Up Tracer Communications
Tracer ZN.520 Sequence of Operation
Tracer ZN.520
Occupied
Unoccupied Mode
Occupied Standby Mode
Occupancy Sources
Tracer ZN.520
Occupied Bypass Mode
Tracer ZN.520
Tracer Summit With Supply Fan Control
Cooling Operation
Discharge Air Tempering
Heating Operation
Tracer ZN.520
Fan Mode Operation
Tracer ZN.520
Table 21. Fan Configuration
Fan speed default
Table 23. Local fan switch enabled
Fan switch local
Continuous Fan Operation Fan Cycling Operation
Fan Off Delay
Tracer ZN.520
Heating
Entering Water Temperature Sampling Function
Tracer ZN.520
Fan Start on High Speed
Heating or Cooling Required
Fresh Air Damper Options
Tracer ZN.520
Electric Heat Operation
Manual
Tracer ZN.520
Economizer Damper
and Damper Position
Outdoor Air Temp
Data Sharing
Tracer ZN.520
Dehumidification
Binary Inputs
Table 26. Binary Input Configurations
Configuration
Tracer ZN.520
Binary
Table 27. Binary Output Configuration
Configuration
Tracer ZN.520
Binary Outputs
Tracer ZN.520
Analog Inputs Table 28. Analog Inputs
Description
Terminals
Zone Sensor
Space Temperature Measurement
External Setpoint Adjustment
Tracer ZN.520
UNT-IOM-6
Fan Switch On/Cancel Buttons
Tracer ZN.520
Communications
Table 29. Zone sensor wiring connections
Tracer ZN.520
TB1 Description
Diagnostics
Table 30. Tracer ZN.520 Diagnostics
Diagnostic
Tracer ZN.520
Tracer ZN.520
Translating Multiple Diagnostics
Resetting Diagnostics
Tracer ZN.520
UNT-IOM-6
LED Operation
Table 31. Red Service LED Activity
Red Service LED
Tracer ZN.520
Troubleshooting
Tracer ZN.520
Green Status LED Yellow Comm LED
Table 32. Green Status LED activity
Tracer ZN.520
Manual Output Test
LED Operation
Test Sequence Table 34. Test Sequence
Troubleshooting
Tracer ZN.520
Table 35. Fan outputs do not energize
Probable Cause
Tracer ZN.520
Table 36. Valves Stay Closed
Probable Cause
Explanation
Terminal Unit Control TUC
TUC Sequence of Operations
Tracer Communication Wiring
Terminal Unit Control TUC
Service Communication Wiring Wall-Mounted
Zone Sensor Module
Terminal Unit Controller Start-Up
Zone sensors without interconnecting wiring
TUC Human Interface
Terminal Unit Control TUC
DIP Switch Position
DIP Switch Position
Terminal Unit Control TUC
Table 37. Valid TUC Addresses
TUC Sequence of Operation
Cooling and Heating Operation
Setpoint Control
Terminal Unit Control TUC
Terminal Unit Control TUC
Fan Mode Operation
Off Position
High, Medium, or Low Postion
2-Pipewith Auxiliary Electric Heat Fan-coils
Entering Water Temperature Sampling Function
Coil Water Temperature
Terminal Unit Control TUC
Manual
Auto 2-Position Economizer
Terminal Unit Control TUC
Fresh Air Damper Options
Terminal Unit Control TUC
UNT-IOM-6
UNT-IOM-6
BIP4 Low Temperature Detection Option
BIP3: Condensate Overflow Detection Device
BIP4: Smoke Input BIP3: Occupied/ Unoccupied Mode
BIP1: External Interlock
Terminal Unit Control TUC
UNT-IOM-6
BIP2 Motion Detection Autocycle Test
Terminal Unit Control TUC
Terminal Unit Control TUC
Reading Diagnostics
ϒ ϒ ϒ ϒ λ ϒ ϒ ϒ λ ϒ λ λ
Terminal Unit Control TUC
Sequence
Reading the Operating Machine State
Terminal Unit Control TUC
Terminal Unit Control TUC
ϒ ϒ ϒ ϒ ϒ ϒ ϒ λ
Reading the Operating Control Mode
Terminal Unit Control TUC
Terminal Unit Control TUC
ϒ ϒ ϒ ϒ ϒ ϒ ϒ ϒ ϒ ϒ λ ϒ
Terminal Unit Control TUC
ϒ ϒ ϒ ϒ
Using the Zone Sensor Using EverywareSoftware
Diagnostics
Resetting Diagnostics
Table 43. TUC Controller Diagnostics
Cycling Power to the TUC
Using Tracer 100i or 100L Using Tracer Summit
Unit Mode Listed as Standby
Terminal Unit Control TUC
Troubleshooting
Terminal Unit Control TUC
Table 44. TUC Does Not Communicate
Probable Cause
Terminal Unit Control TUC
Table 45-Continued.Fan Outputs not Energizing
Probable Cause
Explanation
Terminal Unit Control TUC
Table 46—Continued.Valves Closed
Probable Cause
Explanation
Terminal Unit Control TUC
Table 48. Electric Heat Not Operating
Probable Cause
Explanation
Terminal Unit Control TUC
Table 49. Fresh Air Damper Closed
Probable Cause
Explanation
Table 51. Zone Temperature Too Warm
Terminal Unit Control TUC
Table 50. Fresh Air Damper Open
Probable Cause
Explanation
Table 52. Zone Temperature Too Cool
Probable Cause
Maintenance
Periodic Maintenance Checklist
Maintenance Procedures
Filters
Fresh Air Filter
Unit size
Main Filter
Inspecting and Cleaning Drain Pans
Auxiliary Drain Pan
Main Drain Pan
Vertical units
Winterizing the Coil
Horizontal units
Inspecting and Cleaning Coils
Steam and Water Coils
Volume
Piping Package
Unit Size
Total # Rows
1.Disconnect all electrical power to the unit
Inspecting and Cleaning the Fan
UNT-IOM-6
Fan Board Assembly Removal
Replacing the Motor
Vertical Units
Horizontal Units
Control Device Replacement
Table 56. Trouble Shooting
Problem
Possible Cause
Appendix
Factory Piping Packages
Fan Mode Switch Typical Wiring Diagram
For reference only
Tracer ZN.010 Typical Wiring Diagram
For Reference Only
Electric heat contactor
Tracer ZN.010 Typical Wiring Diagram
For Reference Only
Four-pipe Two-positionN/C cooling control valve
Tracer ZN.010 Typical Wiring Diagram
For Reference Only
TUC Typical Wiring Diagram
For Reference Only
UNT-IOM-6
TUC Typical Wiring Diagram
For Reference Only
Page
The Trane Company
An American Standard Company
Literature Order Number
UNT-IOM-6