Installation and Maintenance Manual

UNT-SVX07D-EN 5
Recommended Communication Wiring Prac-
tices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Wiring Installation (Tracer UC400) . . . . . . 73
Wiring Overview Outline . . . . . . . . . . . . . 74
General Instructions . . . . . . . . . . . . . . . . . 74
BACnet MS/TP Link . . . . . . . . . . . . . . . . . 74
Power Supply . . . . . . . . . . . . . . . . . . . . . . 75
Wireless Sensors . . . . . . . . . . . . . . . . . . . . . . . 77
Address Setting . . . . . . . . . . . . . . . . . . . . 77
Observing the Receiver for Readiness to As-
sociate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Associating the Sensor to the Receiver . 78
Testing Signal Strength and Battery Status
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Configuring the Wireless Display Sensor
(Model WDS only) . . . . . . . . . . . . . . . . . . 79
Sensor Operations . . . . . . . . . . . . . . . . . . 82
Wireless Sensor Specifications . . . . . . . . 85
Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Pre-Startup Checklist . . . . . . . . . . . . . . . . 87
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Tracer ZN510 and ZN520 Unit Startup . . 88
Tracer UC400 Unit Startup . . . . . . . . . . . 88
General Information . . . . . . . . . . . . . . . . . 88
Fan Mode Switch Operation . . . . . . . . . . 89
Tracer ZN010 & ZN510 Operation . . . . . . 89
Tracer ZN520 Operation . . . . . . . . . . . . . 89
UC400 Controller Operation . . . . . . . . . . 89
Sequence of Operation: Tracer ZN010 and
ZN510
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Binary Inputs (Tracer ZN010 and ZN510) 90
Binary Outputs (Tracer ZN010 and ZN510) 90
Tracer ZN520 Sequence of Operation . . . 92
Cooling Operation (Tracer ZN520) . . . . . 93
Fan Mode Operation (Tracer ZN520) . . . 94
UC400 Sequence of Operation . . . . . . . . . 99
Power-up Sequence (UC400) . . . . . . . . . 99
Random Start (UC400) . . . . . . . . . . . . . . . 99
Occupancy Modes (UC400) . . . . . . . . . . . 99
Timed Override Control (UC400) . . . . . 100
Zone Temperature Control (UC400) . . . 100
Discharge Air Tempering (UC400) . . . . .100
Heating or Cooling Mode (UC400) . . . . .100
Entering Water Temperature Sampling Func-
tion (UC400) . . . . . . . . . . . . . . . . . . . . . . .101
Fan Operation (UC400) . . . . . . . . . . . . . .101
Exhaust Control (UC400) . . . . . . . . . . . . .102
Valve Operation (UC400) . . . . . . . . . . . . .102
Modulating Outdoor/Return Air Damper
(UC400) . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Two-position Control Of A Modulating Out-
door Air Damper (UC400) . . . . . . . . . . . .103
Electric Heat Operation (UC400) . . . . . . .103
Dehumidification Operation (UC400) . . .103
Peer-to-peer Communication (UC400) . .104
Unit Protection Strategies (UC400) . . . . .104
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Maintenance Procedures . . . . . . . . . . . . .106
Replacing Motors . . . . . . . . . . . . . . . . . . .108
Periodic Maintenance Checklists . . . . . .110
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Output Testing and Diagnostics (Tracer
ZN520)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Output Testing and Diagnostics (UC400) .115
Output Testing (UC400) . . . . . . . . . . . . . .115
Diagnostics (UC400) . . . . . . . . . . . . . . . .115
Troubleshooting (Wireless Controls) . . . .117
Troubleshooting (Tracer ZN520) . . . . . . .122
Troubleshooting (UC400) . . . . . . . . . . . .124
Troubleshooting (ECM) . . . . . . . . . . . . . .126
General Information (ECM) . . . . . . . . . . .126
Troubleshooting Information (ECM) . . .126
Replacing ECM Components . . . . . . . . . . . .129
Circuit Modules Replacement Notes/Work In-
structions . . . . . . . . . . . . . . . . . . . . . . . . .130
ECM Application Notes . . . . . . . . . . . . . . . . .132
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . .133
UNT-SVX07_-EN.book Page 5 Friday, April 27, 2012 9:40 AM