Trane IntelliPak RA 20

Trane IntelliPak RA 20

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RT-SVX063E-EN

139

NNootteess

Table of Contents

Table of Contents4
Model Number Description8
General Information10
- Unit Nameplate10
- Compressor Nameplate10
- Gas Heat Nameplate10
- Unit Description10
Pre-Installation11
- Unit Inspection11
- Storage11
- Unit Clearances11
- Factory Warranty Information11
Dimensional Data13
- Roof Curb20
- Electrical Entry Details24
- Access Clearances25
Installation27
- Roof Curb and Ductwork27
- Unit Rigging and Placement27
- General Installation Requirements29
- Electrical Data31
  - Electrical Service Sizing31
  - Main Unit Power Wiring36
- Supply Fans38
  - Remove Shipping Tie down38
  - Installation39
- Refrigeration System40
  - Condensate Drain Connections40
  - Compressor Crankcase Heaters41
- Gas Heat Units41
- Electric Heat Units48
- Economizer and Relief Air Damper48
- Adjustment48
Startup the Unit56
- Electrical Phasing56
- Verifying Proper Fan Operation56
- Direct-Drive Supply Fan Speed58
- Adjustment58
- System Airflow Measurements58
- Gas Furnace Startup59
- Final Unit Checkout61
- Trane Startup Checklist62
  - Critical Control Parameters and Dry Bulb Changeover Map63
  - Sequence of Operation65
Stop/Off/Auto65
Power-Up Start Delay65
Normal Unit Starting65
Rapid Restart Operation65
Occupancy65
- Occupancy Status Definitions65
- Timed Override66
- Service Pin Message Request66
Sensors66
Heat Cool Mode Status66
Operating Modes67
- Unit67
- Circuit68
Unit Sub-Modes68
- Morning Warm up68
- Pre Cool69
- Night Purge69
- Daytime Warm up69
- Idle69
Supply Fan Control70
- Supply Fan Speed Control70
- Supply Fan Proving Operation and Method70
- Single Fan Operation70
Supply Fan VFD Bypass Control70
- Entering VFD Bypass Control70
- Mode70
- Supply Fan Proving with VFD71
- Bypass71
- Operation During Manual Override and vom (Emergency Override)71
- Modes71
Minimum Ventilation Control71
- Outdoor Air Flow Control (Traq)71
- Outdoor Air Flow71
- Control71
- (DCV)71
- Compensation72
- Control72
- Space Static Pressure Control with Statitrac TM73
- Space Static Pressure Control Without Statitrac TM73
Discharge Air Temperature Control73
Multi Zone-VAV and Constant Volume - Discharge Temperature Units73
- Supply Air Tempering73
- Changeover Input73
- VAV Box Relay Output73
- Discharge Air Reset74
- Duct Static Pressure Control74
- Duct Static Pressure High Limit74
Space Temperature Control74
- Auto Changeover74
Space Temperature Control Units75
- Single Zone VAV75
- Temperature Control76
Compressor Staging and Timers76
- General Compressor Staging76
- Evaporator Coil Surface Utilization77
- (Two Circuit Units Only)77
- Compressor Lockout and Inhibit77
- Alternate Staging Sequence77
- Compressor Staging with Variable77
- Speed Compressors77
- Balanced Compressor Staging78
Compressor Protections78
- Low Ambient Lockout78
- Low Compressor Suction Pressure78
- Protection78
- Temperature and Pressure Sensor79
- Failures79
- Oil Management Protection79
- Limit79
- Compressor Discharge Saturated79
- Temperature Limit79
- Compressor Discharge Saturated Temperature Speed Limit79
- High Suction Saturated Temperature79
- Inhibit79
- Compressor Involute Pressure79
- Superheat High Limit Detection80
- Variable Speed Compressor Modulating Current Limit80
- Compressor Low Suction Saturated Temperature Speed Limit80
- Coil Frost Protection80
- Head Pressure Control80
Hot Gas Bypass80
- Hot Gas Bypass Control81
EXV Control81
Valve)81
- Configuration82
- Functional Description82
- Operation82
- Operating Modes82
Economizing82
Outdoor Air Damper Fault Detection and Diagnostics (FDD)83
Dehumidification Control83
Occupied83
- Discharge Air Control Units83
- Units84
Dehumidification Control84
Unoccupied84
Heat Types84
- Gas Heat84
- Electric Heat - Staged86
- Electric Heat - Modulating86
- Electric Heat Protection86
- External Heat86
Unoccupied Cooling86
Unoccupied Heating86
External Control87
- External Supply Fan Control87
- External Relief Fan Control87
- External Outdoor Air Damper88
- Control88
Overrides88
- Local Stop88
- Emergency Stop89
- External Stop89
- Manual Control89
- Heat/Cool Capacity Lockouts and Limits91
- Condensate Overflow92
- Filter Status92
Controls93
- Constant Volume System Controls93
  - Constant Volume Zone Panel93
  - (Baysens108*)93
- Compressor Motor Winding93
- Thermostats93
Performance Data97
- Supply Fan Curves97
- Relief Fan Curves100
- Component Static Pressure Drops102
- Refrigeration105
Service and Maintenance106
- Monthly Maintenance109
- Scroll Compressor Replacement111
- VFD Programming Parameters128
- Eflex™ Compressor VFD Programming Parameters133
Microchannel Condenser Coil Repair and Replacement133
- Fall Restraint133
Symbio 800 Replacement134
- Final Process134
Wiring Diagrams136
Warranty and Liability Clause138
- Accessories138

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