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48/50PD05 manual 48PD Control Wiring Schematic, C08582
Models:
48/50PD05
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Troubleshooting
Install
Error codes
48PD Control Wiring Schematic
Evaporator Fan Service and Replacement
Maintenance
Display Configuration
Internal Wiring
Cooling Supply Air Set Point Reset
Diagnostic Alarm Codes and Possible Causes
Page 43
Image 43
48/50PD
C08582
Fig. 12 - 48PD Control Wiring Schematic
43
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Image 43
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Contents
Single Package Displacement Ventilation
TABLE OF CONTENTS
Controls, Start-Up,Operation, Service and
Troubleshooting Instructions
FIRE, EXPLOSION HAZARD
SAFETY CONSIDERATIONS
ELECTRICAL SHOCK HAZARD
UNIT DAMAGE HAZARD
ComfortLink Control
Accessory Navigator Display
GENERAL
BASIC CONTROL USAGE
CCN Tables and Display
System Pilott and Touch Pilot Devices
Unit Preparation
Refrigerant Service Ports
START-UP
Conventions Used in This Manual
Condenser Fans and Motors
Power Supply
Internal Wiring
Evaporator Fan
Orifice Change 48PD Only
Accessory Installation
Control Set Point and Configuration Log
CONTROLS QUICK SET-UP
CCN Communication
Accessories
Power Exhaust
IAQ Switch
Filter Status
Fan Status
Fan Test
SERVICE TEST
Programming Operating Schedules
Independent Outputs
CONTROLS OPERATION
Alarm Output
Display Configuration
THIRD PARTY CONTROL
Remote HVAC Mode Disabled HV.DN
Unit Configuration
Password Enable PROT
Service Password PSWD
RH Sensor On OAQ Input RH.S
Space Humidity Switch RH.SW
General Operating Sequence
Occupancy Determination
Indoor Fan Operation
Compressor Operation
Setpoints→UHSP
Table 6 — Fan Level Control of Outdoor Fan
Outdoor Fan Operation
Economizer Operation
Unoccupied Free Cooling
IA.CF = 0 No IAQ
Indoor Air Quality IAQ
Power Exhaust
IAQ Analog Input
Cooling Modes
Fig. 6 - Cooling Speed Demand Window
Cooling Supply Air Set Point Reset
Fig. 7 - Cool Supply Air Set Point
Ventilation Mode
For all units with Economizers
For units with Enthalpy Control
Fig. 8 - Economizer Minimum Position
Heating Modes
Gas Heat Start-Up
Supply-AirTemperature Sensor SAT
Temp Comp Strt Heat Factr TCS.H
Temperature Compensated Start
Setting Up the System
Temp Comp Strt Cool Factr TCS.C
Demand Limit
Carrier Comfort Network CCNR Configuration
Temperature Compensated Start Logic
SPT Override Enabled? SCH.O→OV.SP
CCN Alarm Broadcast
TROUBLESHOOTING
Alarm Handling
Restart Procedure
Communication Failures
Alarms and Alerts
Viewing and Clearing Unit Alarms
Diagnostic Alarm Codes and Possible Causes
Alert Code T076 - Return Air Thermistor Failure
Alert Code A157 - A/D Hardware Failure
Alert Code T416 - OAQ Input Out of Range
Alert Code T415 - IAQ Input Out of Range
48/50PD
Table 8 — ComfortLink Alarm Codes
Table 8 — ComfortLink Alarm Codes cont
Cooling Troubleshooting
Digital Scroll Controller DSC Troubleshooting
Table 10 — DSC Red LED Flash Codes
Flash Code 4 ⎯ Locked Rotor
Table 11 — Economizer Service Analysis
Economizer Troubleshooting
Phase Reversal Protection
Heating Troubleshooting
Variable Frequency Drive VFD Troubleshooting
Phase Loss Protection
IGC --Integrated Gas Unit Controller
Fig. 9 - IGC Service Analysis Logic
48/50PD
LEGEND IDM -- Induced-DraftMotor
PROBABLE CAUSE
RESET METHOD
48/50PD
DESCRIPTION
Thermistor/Temperature Sensor Check
Thermistor Troubleshooting
Air Temperatures
Refrigerant Temperatures
Forcing Inputs and Outputs
Transducer Troubleshooting
Sensor Trim
TEMP
TEMP
48/50PD
Degree C
86K at 25_C Resistors
Degree C
Degree F
sections below
MAJOR SYSTEM COMPONENTS
General
48/50PD
48/50PD
Fig. 12 - 48PD Control Wiring Schematic
C08582
48/50PD
Fig. 13 - 50PD Control Wiring Schematic
C08583
C08584
48/50PD
48/50PD
Fig. 15 - Typical Unit Component Arrangement
C08657
Fig. 16 - Main Base Board MBB
Main Base Board MBB
CEPL130346-01
setting
SENSOR LOCATION
Table 19 - MBB Connections
48/50PD
POINT DESCRIPTION
Fig. 17 - Economizer Control Board ECB
Economizer Control Board ECB
POINT DESCRIPTION
Table 20 — ECB Connections
48/50PD
DISPLAY
Fig. 18 - Modulation Board AUX1
Modulation Board AUX1
Table 21 — AUX1 Connections
Digital Scroll Control Board DSC
Fig. 20 - Variable Frequency Drive VFD
Variable Frequency Drive VFD
Fig. 21 - Integrated Gas Control IGC Board
Integrated Gas Control IGC Board
Low Voltage Terminal Strip
Space Temperature Sensor T-56
Accessory Navigatort Display
Field-InstalledAccessories
Space Temperature Sensor T-55
Space Temperature Sensor Averaging
Space Temperature Sensor T-58
Fig. 25 - CCN System Architecture
LEGEND
Factory Wiring
Field Wiring
Fig. 26 - Space Temperature Sensor Averaging
Two-PositionDamper
SERVICE
Carrier Accessory Kits
Return/Supply Air Temperature Sensor
Coil Maintenance and Cleaning Recommendation
Cleaning
Main Burner 48PD
Condensate Drain Pan
Filters
Outdoor-AirInlet Screens
Compressors
Evaporator Fan Service and Replacement
Evaporator Fan Performance Adjustment
Lubrication
Fig. 31 - Evaporator-FanAlignment and Adjustment
Evaporator Fan Belt Tension Adjustment
Variable Frequency Drive VFD Replacement
Condenser-FanAdjustment
Evacuation
Economizer Operation During Power Failure
To Use the Cooling Charging Chart
Verify Sensor Performance
PuronR Refrigerant
Gas Valve Adjustment
Filter Drier
Cleaning and Adjustment
High Altitude
Main Burners
Compressor Sound Shield
Replacement Parts
Diagnostic LEDs
Relief Devices
Table 27 - MODE - RUN STATUS
APPENDIX A - LOCAL DISPLAY AND CCN TABLES
48/50PD
Table 27 — MODE - RUN STATUS cont
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
48/50PD
Table 30 — MODE - PRESSURES
Table 28 — MODE - SERVICE TEST
Table 29 — MODE - TEMPERATURES
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
48/50PD
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
Table 31 — MODE - SET POINTS
Table 32 — MODE - INPUTS
Table 33 — MODE - OUTPUTS
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
48/50PD
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
Table 34 — MODE - CONFIGURATION
48/50PD
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
Table 34 — MODE - CONFIGURATION cont
48/50PD
48/50PD
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
ITEM
48/50PD
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
ITEM
48/50PD
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
Table 35 — MODE - TIME CLOCK
Table 36 - CCN ONLY TABLES
Table 37 — MODE - OPERATING MODES
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
48/50PD
Table 37 — MODE - OPERATING MODES cont
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
48/50PD
48/50PD
Table 38 — MODE - ALARMS
APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT
Table 37 — MODE - OPERATING MODES cont
0-10Vdc
APPENDIX B - VFD INFORMATION
Table 40 — VFD CONFIGURATIONS
APPENDIX B - VFD INFORMATION CONT
48/50PD
Start Up by Changing Parameters Individually
VFD Operation
VFD Modes
Start Up with Assistant
Changed Parameters Mode
Drive Parameter Backup Mode
Parameters Mode
Start-UpAssistant Mode
Alarms Green LED Flashing
VFD Diagnostics
I/O Settings Mode
Faults Red LED Lit
Heat Sink
VFD Maintenance
Correcting Alarms
History
APPENDIX B - VFD INFORMATION CONT
Table 41 — FAULT CODES
48/50PD
APPENDIX B - VFD INFORMATION CONT
Table 41 — FAULT CODES cont
48/50PD
48/50PD
Table 42 — ALARM CODES
Table 43 — MAINTENANCE INTERVALS
APPENDIX B - VFD INFORMATION CONT
3 3 2
Main Fan Replacement
Control Panel Cleaning
Battery Replacement
APPENDIX C - START-UPDATA
AIRFLOW
AIRFLOW
Page
1. Maximum continuous BHP is
Bhp -- Brake Horsepower
Bhp -- Brake Horsepower
LEGEND
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW
48/50PD
LEGEND
Bhp -- Brake Horsepower
Bhp -- Brake Horsepower
48/50PD
GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES
APPENDIX D - ADDITIONAL START-UPDATA
INDICATE UNIT SETTINGS BELOW
CONTROL SET POINT AND CONFIGURATION LOG
Table 65 — MODE - CONFIGURATION
48/50PD
Table 65 — MODE - CONFIGURATION cont
48/50PD
Table 65 — MODE - CONFIGURATION cont
48/50PD
Table 65 — MODE - CONFIGURATION cont
II.START-UP
UNIT START-UPCHECKLIST
TEMPERATURES
I. PRE-START-UP
Edition Date: 3/09
48/50PD
Catalog No:48-50PD-01T
Printed in U.S.A