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Trane Force Flo Cabinet Heater - Page 5

Trane Force Flo Cabinet Heater
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UNT-SVX07E-EN 5
ZN010 and ZN510 Operation . . . . . . . . . 103
Sequence of Operation . . . . . . . . . . . . . 103
Binary Inputs . . . . . . . . . . . . . . . . . . . . . . 104
Binary Outputs . . . . . . . . . . . . . . . . . . . . 104
Zone Sensors . . . . . . . . . . . . . . . . . . . . . 104
Tracer ZN520 Controllers
. . . . . . . . . . . . . 105
ZN520 Stand-Alone Operation . . . . . . . 105
ZN520 Operation . . . . . . . . . . . . . . . . . . 105
Sequence of Operation . . . . . . . . . . . . . 106
Occupancy Modes . . . . . . . . . . . . . . . . . 106
Cooling Operation . . . . . . . . . . . . . . . . . 107
Heating Operation . . . . . . . . . . . . . . . . . 107
Fan Mode Operation . . . . . . . . . . . . . . . 108
Electric Heat Operation . . . . . . . . . . . . . 109
Damper Options . . . . . . . . . . . . . . . . . . . 109
Dehumidification . . . . . . . . . . . . . . . . . . 110
Data Sharing . . . . . . . . . . . . . . . . . . . . . . 110
Binary Inputs . . . . . . . . . . . . . . . . . . . . . . 110
Zone Sensor . . . . . . . . . . . . . . . . . . . . . . 112
Tracer UC400 Controller
. . . . . . . . . . . . . . 113
UC400 Stand-Alone Operation . . . . . . . 113
UC400 Operation . . . . . . . . . . . . . . . . . . 114
Sequence of Operation . . . . . . . . . . . . . 114
Occupancy Modes . . . . . . . . . . . . . . . . . 114
Timed Override Control . . . . . . . . . . . . . 115
Zone Temperature Control . . . . . . . . . . 115
Discharge Air Tempering . . . . . . . . . . . . 116
Heating or Cooling Mode . . . . . . . . . . . 116
Fan Operation . . . . . . . . . . . . . . . . . . . . . 116
Exhaust Control . . . . . . . . . . . . . . . . . . . 117
Valve Operation . . . . . . . . . . . . . . . . . . . 117
Modulating Outdoor/Return Air Damper 118
Electric Heat Operation . . . . . . . . . . . . . 119
Dehumidification Operation . . . . . . . . . 119
Peer-to-Peer Communication . . . . . . . . 119
Unit Protection Strategies . . . . . . . . . . . 119
Routine Maintenance
. . . . . . . . . . . . . . . . . . 121
Maintenance Checklist
. . . . . . . . . . . . . . . 121
Air Filters
. . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Coils
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Steam and Water Coils . . . . . . . . . . . . . .122
Coil Winterization . . . . . . . . . . . . . . . . . . .122
Moisture Purge Cycle . . . . . . . . . . . . . . . .123
Cleaning Non-Porous Surfaces . . . . . . . .123
Cleaning Porous Surfaces . . . . . . . . . . . .124
Control Device Replacement
. . . . . . . . . . .124
Drain Pans
. . . . . . . . . . . . . . . . . . . . . . . . . . .124
Removing Main Drain Pan . . . . . . . . . . .124
Removing Auxiliary Drain Pan . . . . . . . .124
Replacing Drain Pan . . . . . . . . . . . . . . . . .125
Cleaning Drain Pan . . . . . . . . . . . . . . . . .125
Fans
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
Inspecting and Cleaning Fans . . . . . . . . .126
Fan Motors . . . . . . . . . . . . . . . . . . . . . . . .126
Torque Rating . . . . . . . . . . . . . . . . . . . . . .126
Fan Board Assembly . . . . . . . . . . . . . . . .126
Replacing Motors . . . . . . . . . . . . . . . . . . .127
Diagnostics and Troubleshooting
. . . . . . . .129
Fan Coil and Cabinet Heater
. . . . . . . . . . .129
Wireless Zone Sensors (WZS)
. . . . . . . . . .130
Receiver Diagnostics . . . . . . . . . . . . . . . .131
Sensor Diagnostics . . . . . . . . . . . . . . . . .131
Testing Signal Strength . . . . . . . . . . . . . .132
Testing Battery Status . . . . . . . . . . . . . . .133
24 V Power Status Indicator . . . . . . . . . .133
Check Signal Strength on a Site . . . . . . .133
Replacing Sensor Batteries . . . . . . . . . . .133
Manual Association . . . . . . . . . . . . . . . . .134
Disassociation . . . . . . . . . . . . . . . . . . . . .134
Sensor/Receiver Compatibility . . . . . . . .134
Replacing a Failed Sensor or Receiver . .134
Servicing and Testing WZS
. . . . . . . . . . . .135
Servicing and Testing Tools . . . . . . . . . .135
Procedure for Testing Zone Sensor . . . .135
Procedure for Testing Receiver . . . . . . . .135
Forcing a Sensor to Transmit . . . . . . . . .135
Output Power Level . . . . . . . . . . . . . . . . .135
Failure and Default Modes . . . . . . . . . . .135
Measuring Output Resistance . . . . . . . . .136
Cleaning the Sensor . . . . . . . . . . . . . . . . .136

Table of Contents

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