Trane Force Flo & UniTrane Air Conditioner Manuals - UNT-SVX07A-EN

typical wiring

Maintenance diagram

ZN520 with 2-stage electric heat

76	UNT-SVX07A-EN

Image 76

Trane UNT-SVX07A-EN, UniTrane Fan-Coil & Force Flo Air Conditioners manual ZN520 with 2-stage electric heat

Contents

Installation, Operation, and Maintenance Models FC & FF ZO and later design sequence General information Common Hvac Acronyms Contents General Model Number General Model Number Description Digit 28 auxiliary control valve 0 = none Digit 29 piping packages 0 = noneDigit 30 control type 0 = none Digit 31 control option Table I-GI-1. Fan-coil component data Table I-GI-2. Low vertical fan-coil component data Available Models Model E horizontal recessedModel K low vertical cabinet Model M inverted vertical cabinet Factory-Installed Piping Packages Dimensions Installation WeightsVertical Concealed Unit Dimensions & weights, in-lbs Vertical Concealed, Model a Vertical Cabinet Unit Dimensions, in-lbs Vertical Cabinet, Model B Horizontal Concealed Unit Dimensions, in-lbs Horizontal Concealed, Model C Horizontal Cabinet Unit Dimensions, in-lbs Horizontal Cabinet, Model D Horizontal Recessed Unit Dimensions, in-lbs Installation Dimensions WeightsHorizontal Recessed, Model E Vertical wall hung cabinet unit dimensions & weights, in-lbs Vertical Wall Hung Cabinet, Model F Vertical Recessed Unit Dimensions, in-lbs Vertical Recessed, Model H Vertical Slope Top Unit Dimensions, in-lbs Vertical Slope Top, Model J Low Vertical Concealed Unit Dimensions, in-lbs Low Vertical Concealed, Model K Low Vertical Cabinet Unit Dimensions, in-lbs Low Vertical Cabinet, Model L Inverted vertical cabinet unit dimensions & weights, in-lbs Inverted Vertical Cabinet, Model M Inverted vertical recessed unit dimensions & weights, in-lbs Inverted Vertical Recessed, Model N Fan-Coil Coil Connections Vertical Units Horizontal Units Force Flo Coil Connections Vertical Units Horizontal Units Inverted Units Fresh Air Opening Dimensions, Horizontal Units Fresh Air Opening Dimensions, Vertical Units Wall Box Dimensions Wall Box Projection Panel Dimensions Projection Panel Pre-installation Installation considerations Installation PreparationReceiving and Handling Jobsite Storage Service Access Pre-Installation Checklist Connecting field piping to coil MechanicalDuct Connections Piping Considerations Condensate Drain Venting the Hydronic Coil Figure I-MR-4. Close-up view of the changeover sensor Balancing The Manual Circuit Setter Valve Figure I-MR-8. Manual circuit setter valve Mechanical Code of System Components in Piping Diagram Steam Piping Unit Wiring Diagrams Supply Power WiringWall Mounted Control Interconnection Wiring Electrical Table I-ER-2. Low vertical free discharge motors, 115 volt Table I-ER-3. Decimal to fractional HP kW conversion Table I-ER-8. Fan-coil electric heat kW Table I-ER-9. Electric heat kW Table I-ER-10. Force Flo single-stage, max kW electric heat Table I-ER-11. Force Flo single stage, low kW electric heat Table I-ER-12. Force Flo 2-stage electric heat Installation Installing the Unit Unit Leveling Figure I-IP-3. Zone sensor with on/cancel Comm jack Figure I-IP-5. Zone sensor only Installing Wall Mounted Controls Wiring InstructionsFan Mode Switch Installation Zone Sensor Installation Installation Checklist Unit Leveling Communication Wiring Recommended Communication Wiring PracticesPre-startup Device Addressing Pre-Startup Checklist Installation startup Tracer ZN510 & ZN520 Unit Startup Manual Fan Mode Switch General Operation informationGeneral Information Relay Board Fan Mode Switch Operation SequenceTracer ZN010 & ZN510 Operation Tracer ZN520 Operation Binary Inputs Binary Outputs Fan Mode Switch Analog InputsZone Sensors Supply Fan Operation Tracer ZN520 Sequence of Operation Heating Operation Cooling OperationDischarge Air Tempering Fan Mode Operation Continuous Fan Operation Fan Start on High Speed Electric Heat OperationManual Fresh Air Damper Economizer Damper Option Table O-SO-12. Binary input configurations Table O-SO-13. Binary output configurationData Sharing Binary Outputs Table O-SO-14. Analog inputs Table O-SO-15. Analog inputs Fan Switch On/Cancel ButtonsTable O-SO-16. Zone sensor wiring connections Zone Sensor Maintenance diagnostics Table M-D-1. Tracer ZN520 Diagnostics Translating Multiple Diagnostics Resetting DiagnosticsDiagnostic Reset Cycling the Fan Switch Table M-D-4. Valves Stay Closed Table M-D-3. Fan outputs do not energizeTable M-D-5. Valves Stay Open Table M-D-7. Fresh Air Damper Stays Open Table M-D-6. Electric Heat Not OperatingTable M-D-8. Fresh Air Damper Stays Closed Maintenance troubleshooting Troubleshooting the Relay BoardSwitch SW1 Controller Type Switch SW2 Electric Heat Troubleshooting Tracer ZN010, ZN510 & ZN520 Red Service LEDGreen Status LED Yellow Comm LED Table M-T-1. Test sequence for 1-heat/1-cool configurations BOP5 BOP6 Maintenance Procedures MaintenanceMain Drain Pan Steam and Hydronic Coil Cleaning Procedure Coil MaintenanceWinterizing the Coil Control Device Replacement Replacing the Motor Periodic Maintenance Checklists Monthly ChecklistMonthly Maintenance Annual Maintenance Typical wiring Csti Fan Speed Switch Csti Non Fan Speed Switch Line voltage fan speed switch Tracer ZN010 with electric heat Tracer ZN510 with main and auxilliary valves ZN520 with 2-stage electric heat Page Page Page PL-TD-UNT-SVX07A-EN