Trane BCVE - Page 147

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BCX-SVX002A-EN

147

Figure 111. Size 24 to 60 BCVE unit with condensate overflow, low-limit switch, and discharge air temp

Layout and Control Box Diagrams

Main Page

Table of Contents4
Model Number Description8
General Information10
Pre-Installation13
Receiving and Handling13
Inspection13
Packaging/Shipping13
Identification13
Handling13
Receiving Checklist13
Jobsite Storage13
Outdoor Storage13
Site Preparation14
Dimensions and Weights15
Service Clearances15
Horizontal Blower Coil20
Vertical Blower Coil22
Options25
Angle Filter and Mixing Box25
Bottom/Top Access Filter Box26
Return and Discharge Attenuators27
Electric Heat30
Coil Connections36
Sample Piping Schematics37
Valve and Actuator Operation40
Installation Mechanical42
Lifting and Rigging42
General Lifting Considerations42
Installation Procedure42
Horizontal Unit (Model BCHE)42
Installation42
Vertical Unit (Model BCVE)44
Installation44
Accessory Installation - MIX Box45
Attenuators45
Condensate Drain Connections52
Piping and Connections53
General Recommendations53
Grommet Installation53
Drain Pan Trapping54
Bcve)54
Water Coil Piping55
Refrigerant Coil Piping55
Liquid Lines56
Line Sizing56
Routing56
Insulation56
Components56
Suction Lines57
Expansion Valves58
Remodel, Retrofit, or Replacement58
Field-Installed Evaporator Piping59
Installation - Controls61
Control Options61
Customer Supplied Terminal Interface61
(Csti)61
CSTI Adapter Board Configuration61
Cooling62
Heating63
Thermostat64
Tracer ® UC400-B Controller65
Communication Wire65
Specifications65
General Wiring Guidelines65
Setting the Address65
Power Supply67
Air-Fi ® Wireless Communications69
Systems69
Interface (WCI)69
Wireless Zone Sensor (WZS) Set69
Automatic Network Formation69
Specifications70
Mounting70
Wireless Protocol70
Zone Sensor Options71
Zone Sensor Installation71
Location Considerations71
Location Considerations for Wireless72
Zone Sensors72
Height Requirements72
Mounting Surfaces72
Zone Sensor Dimensions72
Wired Zone Sensor72
Wireless Zone Sensors73
Receivers73
Zone Sensor Settings73
Address Setting73
Observing Receiver for Readiness74
Associating Sensor to Receiver75
Battery75
Sensor Operations76
Temporary Occupancy76
Override)76
Values76
Receiver Power-Up Sequence76
Transmission Variables77
Wireless Sensor Specifications77
Agency Compliance78
Wireless Display Sensor (WDS)78
Configuration Procedure78
Displaying Setpoint or79
Temperature79
Locking or Unlocking Settings79
WDS Operating Mode80
Changing Room Temperature80
Settings81
Changing Fan Settings81
Requesting Temporary81
Occupancy81
Error Codes81
Lock Symbol81
Testing Signal Strength81
Testing Battery Status81
Installation - Electrical82
Unit Wiring Diagrams82
Supply Power Wiring82
Electrical Grounding Restrictions82
Interconnection Wiring82
MCA and MOP Calculations83
Non-Electric Heat Units83
Electric Heat Units83
Useful Formulas83
ECM Overview and Setup86
Trane Electronically Commutated Motor86
(Ecm)86
Velocitach™ Motor Control Board86
Status Display87
Installation and Initial Setup87
Safety Requirements88
Setup88
Velocitach Motor Control Board88
User Interface89
Configuration Examples91
Priority/Error Display91
Adjustments92
Adjusting Variable Speed Inputs92
Configurations95
Motor Control Board Settings96
Verification100
Start-Up101
Pre-Startup Checklist101
General Checklist101
Fan-Related Checks101
Coil-Related Checks101
Electrical Checks101
Ductwork Checks101
Unit Startup102
Thermostat102
Tracer® UC400-B Controller104
Analog Sensors104
Zone Sensor104
UC400-B Stand-Alone Operation106
UC400-B Operation106
Sequence of Operation106
Power-Up Sequence106
Random Start107
Occupancy Modes107
Timed Override Control107
Zone Temperature Control108
Discharge Air Tempering108
Heating or Cooling Mode108
Function109
Fan Operation109
Manual Fan Speed Control109
AUTO Fan Operation; 1-, 2-, 3-Speed109
Fans109
AUTO Fan Operation; ECM Energy Efficient Mode109
AUTO Fan Operation; ECM Acoustical109
Mode109
Exhaust Control110
Valve Operation110
Operation110
Calibration110
Two-Position Valve Operation110
Modulating Outdoor/Return Air110
Damper110
Economizing (Free Cooling)111
Electric Heat Operation111
Dehumidification Operation112
Peer-To-Peer Communication112
Unit Protection Strategies112
Smart Reset112
Low Coil Temperature Protection112
Condensate Overflow112
Fan Status112
Fan off Delay112
Filter Maintenance Timer112
Freeze Avoidance113
Freeze Protection (Discharge Air Temperature Low Limit)113
Routine Maintenance114
Maintenance Checklist114
Air Filters114
Fans115
Inspecting and Cleaning Fans115
Fan Motors115
Torque Rating115
Coils119
Water Coils119
Refrigerant Coils120
Coil Winterization120
Moisture Purge Cycle120
Cleaning Non-Porous Surfaces121
Cleaning Porous Surfaces121
Drain Pans121
Diagnostics and Troubleshooting123
Wireless Zone Sensors (WZS)124
Receiver Diagnostics125
Sensor Diagnostics126
Testing Signal Strength126
Testing Battery Status127
24 V Power Status Indicator128
Check Signal Strength on a Site128
Replacing Sensor Batteries128
Manual Association129
Disassociation129
Sensor/Receiver Compatibility129
Receiver129
Servicing and Testing WZS129
Servicing and Testing Tools130
Sensor130
Procedure for Testing Receiver130
Forcing a Sensor to Transmit130
Output Power Level130
Failure and Default Modes130
Measuring Output Resistance131
Cleaning the Sensor131
Thermostat131
Tracer® UC400-B Controller132
LED Activity132
Overriding Outputs133
Diagnostics133
Fans with UC400-B Controller135
Valves with UC400-B Controller136
Controller136
Controller137
ECM Motors138
General Information138
Troubleshooting Tips138
Motor139
Replacing ECM Components140
Circuit Module Replacement141
Application Notes142
Wiring Diagrams144
Layout and Control Box Diagrams145

Trane BCVE - Page 147

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