Carrier 38APS025

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a38-7410

Fig. 6 — Power Wiring Schematic — 38APS040,050 (Typical)

NOTE: Typical drawing shown. Refer to

unit wiring diagram label for specific unit.

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Table of Contents1
Controls, Start-Up, Operation, Service, and Troubleshooting1
Safety Considerations2
General3
Unit Sizes3
Conventions Used in this Manual3
Controls3
- Component, Power, and Control Drawings4
- Component Arrangement5
- Power Wiring Schematic9
- Power Wiring Schematic — 38APD040-060 (Typical)11
- Power Wiring Schematic — 38APS065 (Typical)12
- Power Wiring Schematic — 38APD070-100 (Typical)13
- Power Wiring Schematic — 38APD115,130 (Typical)14
- Control Wiring Schematic — 38APS025-050 (Typical)15
- Control Wiring Schematic — 38APD025-060 (Typical)16
- Control Wiring Schematic — 38APS065 (Typical)17
- Control Wiring Schematic — 38APD070-130 (Typical)18
- Non-Fused Disconnect20
- Terminal Block20
- Field Power Wiring20
Display Module Usage21
- Accessory Navigator Display Module21
- Scrolling Marquee Display21
- (CCN) Interface22
- Carrier Comfort Network Interface22
Changing the Display Language22
Changing the Units of Measure22
Configuration and Service Password22
CCN Wiring Diagram23
Comfortlink Control Boards23
- Aux Board (Aux)24
- Compressor Expansion Module (Cxb)24
- Main Base Board (Mbb)24
  - Switch Number/Position24
  - Aux Board25
- Energy Management Module (Emm)26
Inputs26
- Emergency On/Off Switch26
- Enable/Off/Remote Contact Switch26
  - Current Sensing Board (CSB) Input Connections27
  - Switch Inputs27
- Emergency On/Off Switch28
- Fan Status Switch (Fs1, Fs2)29
- Thermistors29
- Thermostat Input32
Sensor Locations32
Outputs40
Pre-Start-Up40
System Check40
Evacuation and Dehydration40
Preliminary Puron Refrigerant (R-410A)41
Start-Up41
Preliminary Charge41
Adjust Refrigerant Charge41
- Charging Chart — 38APD02542
- Charging Chart — 38APS025, 50/60 Hz43
- Charging Chart — 38APD027, 50/60 Hz43
- Charging Chart — 38APS027, 50/60 Hz44
- Charging Chart — 38APD030, 50/60 Hz44
- Charging Chart — 38APS030, 50/60 Hz45
- Charging Chart — 38APD040 — Circuit A, 50/60 Hz45
- Charging Chart — 38APD04046
- Charging Chart — 38APS04046
- Charging Chart — 38APD05047
- Charging Chart — 38APS050, 50/60 Hz48
- Charging Chart — 38APD060 — Circuit A, 50/60 Hz48
- 38AP 60 Hz Additional Lubricant57
Check Compressor Oil Level57
Adjust Oil Charge57
- 38AP 60 Hz Additional Lubricant (SI)58
- 38AP 50 Hz Additional Lubricant (SI)59
Operation59
Time, Day, and Date59
- Time/Date Broadcast59
- Daylight Savings Time59
Control Methods60
- Enable-Off-Remote Control60
- Ccn Control64
- Capacity Control Algorithms110
- Supply Air Temperature Control110
Capacity Control64
- Alarm Equipment Priority111
- Circuit Compressor Staging112
- Compressor Staging112
- Deadband Multiplier115
- Demand Limit115
- Head Pressure Control117
- Low Ambient Lockout128
- Minutes off Time128
- Ramp Loading128
- Thermostat Capacity Stage Control111
- Alarm Routing Control111
Field Configurable Controls111
Operating Modes135
- Temperature Reset135
Service Test136
- Compressor Locations137
- Advanced Scroll Temperature Protection (ASTP)138
- Compressor Circuit Breakers138
- Compressor Motor Protection138
- Enabling and Disabling Compressors138
- Kriwan Motor Protection Module Troubleshooting139
- Motor Overload Protection139
- Compressor Functional Check144
- Compressor Replacement144
- Oil Charge147
  - Typical Tandem Compressor Assembly148
  - Typical Trio Compressor Assembly148
Compressors137
- Oil Dip Tube Assemblies149
- Replacement Modules149
Control Module Service149
Condenser Fan Motors149
- Compressor and Oil Equalizer Line Sight149
- Loss of Communication149
- Condenser Fan Motor Protection150
- Value Fan Mounted Position150
- Metal (Value Sound) Fans150
- Aeroacoustic™ (Low Sound) Fans150
Motormaster V Controls152
Filter Drier152
- Replacing Switch152
High Pressure Switch152
Moisture/Liquid Indicator152
Motormaster V Fault Codes154
Pressure Transducers154
- Replacing Transducer155
- Replacing Thermistors156
Typical 38AP Pressure Transducer Wiring155
Temperature Relief Devices155
Recommended Maintenance Schedule161
Lubrication161
Navigator161
- Display Module161
Refrigeration Circuit161
- Condenser Fan Blades161
- Condenser Fan Motor Bearings161
- Door Hinges161
- Recommendations161
Ground Fault Interrupter-Convenience Outlet161
Troubleshooting162
Alarms and Alerts162
- Resetting Alarms162
- Alarm History162
- Alarm and Alert Codes163
- Alarm and Alert Details166
Appendix A - Display Tables176
- Run Status Mode and Sub-Mode Directory177
- Service Test Mode and Sub-Mode Directory178
- Temperatures Mode and Sub-Mode Directory179
- Pressures Mode and Sub-Mode Directory179
- Setpoints Mode and Sub-Mode Directory180
- Inputs Mode and Sub-Mode Directory181
- Outputs Mode and Sub-Mode Directory181
- Configuration Mode and Sub-Mode Directory182
- Configuration UNIT Data185
- Time Clock Mode and Sub-Mode Directory186
- Operating Mode and Sub-Mode Directory194
- Alarms Mode and Sub-Mode Directory194
- Status Tables195
Appendix B - Ccn Tables195
- Maintenance Tables198
- Configuration Tables202
- DISPLAY (Marquee Display Set Up)202
- Service Table208
- Setpoint Table208
- Time Schedule Tables209
- Bacnet Communication Option210
- Address Rotary Switches210
- UPC Open Controller210
- To Address the Upc Open Controller210
- Configuring the Bas Port for Bacnet Ms/Tp211
- SW3 Protocol Switch Settings for MS/TP211
- Baud Selection Table211
- UPC Open Controller DIP Switches211
Appendix C - Bacnet Communication211
- BT485 Terminator Installation212
- MS/TP Wiring Recommendations212
- Local Access to the Upc Open Controller213
- Configuring the Upc Open Controller's Properties213
- Open System Wiring Specifications and Recommended Vendors213
- Bacview Device Connection213
- LED Status Indicators214
- Run and Error Leds Controller and Network Status Indication214
- Communication Leds214
- Network Points List215
- Piping and Instrumentation Diagrams219
- 38APD025-030 Piping and Instrumentation219
- 38APD040-060 Piping and Instrumentation220
Appendix D - Piping and Instrumentation220
- 38APD070,080 Piping and Instrumentation221
- 38APD090-130 Piping and Instrumentation222
- 38APS025-030 Piping and Instrumentation223
- 38APS040-050 Piping and Instrumentation223
- 38APS065 Piping and Instrumentation224
- Control Methods with Inputs for Control Mode Comparison225
Appendix E - Control Methods with Inputs for Control Mode226
Index227
- Preliminary Equipment Check230
- Air-Handling Unit231
- System Start-Up233
- Pre-Start Check233
- Start and Operate the System234

Carrier 38APS025 - Page 10

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