48/50PG20−28 and 48/50PM16−28, A48-8222

RH2.x

RH1.x

COND COIL

HUMIDI-MIZER COIL

COMP

OUTDOOR AIR

		EVAP COIL
	CLOSED VALVE
	OPEN VALVE
	3-WAY VALVE	INDOOR ENTERING
	a48-8222	INDOOR ENTERING
	a48-8222	AIR

Fig. 12 − Normal Cooling Mode — Humidi−MiZert System

48/50PG20−28 and 48/50PM16−28

RH2.x

RH1.x

COND COIL				HUMIDI-MIZER COIL

COMP

OUTDOOR AIR

	EVAP COIL
CLOSED VALVE
OPEN VALVE
3-WAY VALVE	INDOOR ENTERING
	INDOOR ENTERING
	AIR

Fig. 13 − Subcooling Mode (Reheat1) — Humidi−MiZer System

48/50PG20−28 and 48/50PM16−28

METERING	PM
METERING
DEVICE	48/50PG and
	48/50PG and

C07122

METERING

DEVICE

C07123

Page 27

Image 27

Carrier 48/50PM C16-28, 48/50PG C03-14 manual 48/50PG20−28 and 48/50PM16−28, a48-8222, 48/50PG and

Contents

48/50PG C03-14 48/50PM C16-28 TABLE OF CONTENTSControls, Start-Up,Operation, Service and Troubleshooting Instructions SAFETY CONSIDERATIONS ELECTRICAL SHOCK HAZARDUNIT DAMAGE HAZARD Scrolling Marquee GENERALBASIC CONTROL USAGE ComfortLink Control System Pilott and Touch Pilot Devices Accessory Navigator DisplayFig. 2 − Accessory Navigator Display Operation Force Hierarchy Generic Status Display TableFig. 3 − System Pilott User Interface START-UP Refrigerant Service PortsPower Supply Internal Wiring OUTDOOR AIR SCREEN HIDDEN Condenser Fans and Motors Accessory InstallationControl Set Point and Configuration Log CONTROLS QUICK SET−UP CCN Linkage Control AccessoriesPower Exhaust T−58 Communicating Room Sensor IAQ Sensor IAQ SwitchProgramming Operating Schedules Outdoor Enthalpy ITEM EXPANSION DISPLAY SUB‐SUB MENU MODEKEYPAD ITEM DISPLAY Cooling Test SERVICE TESTIndependent Outputs Fan Test Heating Test Alarm OutputDetector Wiring THIRD PARTY CONTROL Service Password PSWD Display ConfigurationUnit Configuration Password Enable PROT Fire Shutdown Switch FS.SW Fan On When Occupied OC.FNFan Status Switch FN.SW Filter Status Switch FL.SW Cool Setpoint In Effect EFF.C HVAC Operation Disabled HV.DNGeneral Operation Temperature Setpoint Determination Level 2 Priority Occupancy DeterminationIndoor Fan Operation Level 1 Priority Thermostat Control Cooling OperationCooling Mode Control Staging Control Units With Humidi−MiZer System Compressor ControlOutdoor Fan Control Units Without Humidi−MiZert System Table 5 – Outdoor Fan Level Transitions Staging Control Heating OperationHeating Mode Control Supply−Air Temperature Sensor SAT Heat Relay Control Integrated Gas Controller IGCSpace Sensor Control Unoccupied Free Cooling UEFC = 0 DisabledEconomizer Economizer Actuator Communications Free Cool PreOcc Time FC.TM Optional Humidi−MiZert Dehumidification SystemDehumidification Demand Reheat Modes 48/50PG and PM 48/50PG03−16 a48-8174 48/50PG03−1648/50PG03−16 48/50PG and PM 48/50PG and 48/50PG20−28 and 48/50PM16−2848/50PG20−28 and 48/50PM16−28 a48-8222 Reheat Control Reheat Outdoor Fan Control48/50PG20−28 and 48/50PM16−28 Service TestHMZRRH1.A Reheat1 A Test Reheat Mode Diagnostic HelpService TestCOOLCMP.A Cool A Test Service Test→COOL→CMP.C Cool C Test Fig. 17 − Humidi−MiZer System Valve Locations Indoor Air Quality IAQAir Baffles IAQ Analog Input Fig. 18 − Air Baffle Dimensions 48/50PG03−16 48/50PG and PMC07009 Fig. 19 − Air Baffle Dimensions 48/50PM16−28 48/50PG and PMC08077 IA.CF = 3 Control Minimum Position IAQ Switch InputOutdoor Air Quality Analog Input Fig. 20 − IAQ Control Fan Speed − Ventilation FS.VN Fan Enable Analog IAQ SensorFan Enable Switch Input Adaptive Fan Fan Speed − Reheat2 FS.RH Carrier Comfort Network CCNR ConfigurationSetting Up the System Temperature Compensated Start Global Schedule Broadcast BRODB.GS SPT Override Enabled? SCH.OOV.SPDemand Limit Linkage Alarms and Alerts TROUBLESHOOTINGAlarm Handling Restart Procedure AlarmsHIST Alarm History Diagnostic Alarm Codes and Possible CausesAlarmsR.HIST Reset Alarm History AlarmsCURR Currently Active Alarms Alert Codes T140 − Circuit C Loss of Charge Alert Code T076 − Return Air Thermistor Failure Alarm Code A404 − Fire Shutdown Alarm Code A154 − Serial EEPROM Hardware FailureAlarm Code A157 − A/D Hardware Failure Alarm Code A200 − Linkage Timeout − Comm Failure Table 12 – ComfortLinkt Alarm Codes 48/50PG and PMSee Legend on next page 48/50PG and PM Table 12 — ComfortLinkt Alarm Codes cont Alert Code T414 Alert Code T410 Red LED OAU General AlarmControl Module Communication Communication Failures Table 14 – Cooling Service Analysis Cooling Troubleshooting Table 15 – Humidi-MiZerService Analysis Humidi−MiZert Troubleshooting Table 16 – Economizer Service Analysis Economizer Troubleshooting Electric Heat 50PG Units Heating TroubleshootingTable 17 – Gas Heating Service Analysis Gas Heat 48PG Units IGC --Integrated Gas Unit Controller Fig. 21 − IGC Service Analysis Logic48/50PG and PM LEGEND IDM -- Induced-DraftMotor Table 18 – IGC Board LED Alarm Codes Table 19 – Electric Heat Service Analysis48/50PG and PM Phase Loss Protection Phase Loss ProtectionThermistor Troubleshooting Phase Reversal Protection Transducer Troubleshooting Forcing Inputs and OutputsSensor Trim TEMP TEMP 48/50PG and PM General MAJOR SYSTEM COMPONENTS Fig. 25 − 48PG03−16 Control Wiring Schematic 48/50PG and PMC08549 Fig. 26 − 50PG03−16 Control Wiring Schematic 48/50PG and PMC08550 C101249 48/50PG and PM C08552 48/50PG and PM C08554 48/50PG and PM 48/50PG08−14 Shown 48/50PG and PMC101250 Fig. 31 − Typical 48PM16−28 Control Schematic 48/50PG and PMC08471 C08062 48/50PG and PM Fig. 33 − Typical 50PM16−28 Control Schematic 48/50PG and PMC101251 C08064 48/50PG and PM Fig. 35 − Typical 48/50PM16−28 Power Schematic 48/50PG and PMC10902 C09213 48/50PG and PM 48/50PG and PM 2TRAN1TRAN SAT OAT TXV IGC Fig. 38 − 48/50PM16−28 Component Arrangement 48/50PG and PMC08067 C101252 48/50PG and PM Fig. 40 − Main Base Board MBB Main Base Board MBB 48/50PG and PM Table 23 – MBB Connections Fig. 41 − Economizer Control Board ECB Economizer Control Board ECB 48/50PG and PM Table 24 – ECB Connections Integrated Gas Control IGC Board Fig. 42 − Integrated Gas Control IGC BoardTable 25 – IGC Connections TB1 on PG03−16 size and TB2 on PG20−28 and Low Voltage Terminal StripFig. 43 − Low−Voltage Terminal Strip Table 26 - Field Connection Terminal Strip Carrier Comfort Network CCNR Interface Accessory Navigatort DisplayFig. 45 − Accessory Navigatort Display Scrolling Marquee Display EnergyX Fig. 46 − CCN System Architecture Space Temperature Sensor T−58 Field-InstalledAccessoriesSpace Temperature Sensor T−55 Space Temperature Sensor T−56 LEGEND Fig. 47 − Space Temperature Sensor AveragingFactory Wiring Field Wiring Outdoor Air Quality Carrier Accessory KitsTwo−Position Damper Indoor Air Quality UNIT OPERATION AND SAFETY HAZARD SERVICECleaning Coil Maintenance and Cleaning Recommendation UNIT RELIABILITY HAZARD Routine Cleaning of Round−Tube Coil SurfacesCondensate Drain Pan 48/50PG03−14 Units EQUIPMENT DAMAGE HAZARD Outdoor−Air Inlet Screens LubricationCondensate Drain Pan 48/50PM16−28 Units Filters Economizer or Manual Outside Air Damper Evaporator Fan Service and ReplacementEvaporator−Fan Motor Adjustment Condenser and Evaporator−Fan Motor Bearings Fig. 54 − Evaporator−Fan Alignment and Adjustment Evaporator Fan Performance Adjustment Fig. 52−54Evaporator Fan Belt Tension Adjustment Table 27 - Belt Tension Adjustment Fig. 55 − Condenser−Fan Adjustment Condenser-FanAdjustment Fig.Economizer Operation During Power Failure Repairing Tube Leaks Refrigerant Charge To Use the Cooling Charging Chart, Standard UnitFig. 58 − Charging Chart — 48/50PG03 Fig. 59 − Charging Chart — 48/50PG04 Fig. 63 − Charging Chart - 48/50PG08 and Fig. 60 − Charging Chart — 48/50PG05Fig. 61 − Charging Chart — 48/50PG06 Fig. 62 − Charging Chart — 48/50PG07 Fig. 67 − Charging Chart − 48/50PM24 Fig. 64 − Charging Chart - 48/50PG12Fig. 65 − Charging Chart — 48/50PG14 Fig. 66 − Charging Chart − 48/50PM16 and 48PG08−14 Gas Valve Adjustment 48PG and PMPuronR Refrigerant Table 28 – Altitude Compensation 48PG03−07 Main Burner Removal Cleaning and AdjustmentHigh Altitude 48PG and PM Main Burners 48PG and 48PM High−Pressure Switch Replacement PartsDiagnostic LEDs Fig. 70 − Spark Gap Adjustment APPENDIX A — LOCAL DISPLAY AND CCN TABLES MODE — RUN STATUS48/50PG and PM APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT MODE — RUN STATUS cont48/50PG and PM ITEM APPENDIX A — LOCAL DISPLAY AND CCN TABLES CONTMODE — RUN STATUS cont 48/50PG and PM APPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT MODE — SERVICE TESTMODE — TEMPERATURES MODE — PRESSURES 48/50PG and PM MODE — SET POINTSMODE — INPUTS APPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT MODE — OUTPUTS APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT48/50PG and PM DISP MODE — CONFIGURATIONAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM COOL MODE — CONFIGURATION contAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM ITEM MODE - CONFIGURATION contAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM ITEM MODE — CONFIGURATION contAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM ITEM MODE — CONFIGURATION contAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM ITEM MODE — CONFIGURATION contAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM ITEM MODE - CONFIGURATION contAPPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM ITEM MODE — CONFIGURATION contAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM 48/50PG and PM MODE - TIME CLOCKCCN ONLY TABLES APPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT MODE MODE — OPERATING MODESAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT 48/50PG and PM 48/50PG MODE - OPERATING MODES contAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT and PM 48/50PG and PM MODE — ALARMSAPPENDIX A — LOCAL DISPLAY AND CCN TABLES CONT MODE — OPERATING MODES cont APPENDIX B - CONTROL MODES WITH Thermostat Control Type configuration is ignored1-StageY1 Thermostat Control Type configuration = Digital Thermostat Control Type configuration = 48/50PG and PM APPENDIX C — START−UP DATAFan Performance — 48PGD03 Vertical Units Fan Performance — 48PGD04 Vertical Units Fan Performance — 48PGE04 Vertical Units Fan Performance — 48PGF04 Vertical Units48/50PG and PM Fan Performance — 48PGD05 Vertical Units Fan Performance − 48PGE05 Vertical Units48/50PG and PM Fan Performance — 48PGF05 Vertical Units Fan Performance — 48PGD06 Vertical Units48/50PG and PM Fan Performance - 48PGE06 Vertical Units Fan Performance − 48PGF06 Vertical Units48/50PG and PM Fan Performance — 48PGD07 Vertical Units Fan Performance - 48PGE07 Vertical Units48/50PG and PM Fan Performance — 48PGF07 Vertical Units Fan Performance - 48PGD08 Vertical Units48/50PG and PM Fan Performance — 48PGE08 Vertical Units Fan Performance — 48PGF08 Vertical Units48/50PG and PM Fan Performance — 48PGD09 Vertical Units Fan Performance - 48PGE09 Vertical Units48/50PG and PM Fan Performance — 48PGF09 Vertical Units Fan Performance — 48PGD12 Vertical Units48/50PG and PM Fan Performance — 48PGE12 Vertical Units Fan Performance — 48PGF12 Vertical Units48/50PG and PM 48/50PG and PM Fan Performance - 48PGD14 Vertical Units 48/50PG and PM Fan Performance — 48PGE14 Vertical Units 48/50PG and Fan Performance — 48PGF14 Vertical Units Fan Performance — 48PGD03 Horizontal Units Fan Performance — 48PGD04 Horizontal Units48/50PG and PM Fan Performance — 48PGE04 Horizontal Units Fan Performance — 48PGF04 Horizontal Units48/50PG and PM Fan Performance - 48PGD05 Horizontal Units Fan Performance — 48PGE05 Horizontal Units48/50PG and PM Fan Performance — 48PGF05 Horizontal Units Fan Performance — 48PGD06 Horizontal Units48/50PG and PM Fan Performance — 48PGE06 Horizontal Units Fan Performance — 48PGF06 Horizontal Units48/50PG and PM Fan Performance — 48PGD07 Horizontal Units Fan Performance - 48PGE07 Horizontal Units48/50PG and PM Fan Performance — 48PGF07 Horizontal Units Fan Performance — 48PGD08 Horizontal Units48/50PG and PM Fan Performance — 48PGE08 Horizontal Units Fan Performance - 48PGF08 Horizontal Units48/50PG and PM Fan Performance — 48PGD09 Horizontal Units Fan Performance — 48PGE09 Horizontal Units48/50PG and PM Fan Performance — 48PGF09 Horizontal Units Fan Performance — 48PGD12 Horizontal Units48/50PG and PM Fan Performance — 48PGE12 Horizontal Units Fan Performance — 48PGF12 Horizontal Units48/50PG and PM 48/50PG and PM Fan Performance — 48PGD14 Horizontal Units 48/50PG and PM Fan Performance — 48PGE14 Horizontal Units 48/50PG and Fan Performance — 48PGF14 Horizontal Units Fan Performance — 50PG03 Vertical Units Fan Performance — 50PG04 Vertical Units48/50PG and PM Fan Performance — 50PG05 Vertical Units Fan Performance - 50PG06 Vertical Units48/50PG and PM Fan Performance — 50PG07 Vertical Units Fan Performance — 50PG08 Vertical Units48/50PG and PM Fan Performance — 50PG09 Vertical Units Fan Performance — 50PG012 Vertical Units48/50PG and PM 48/50PG and Fan Performance — 50PG014 Vertical Units Fan Performance - 50PG03 Horizontal Units Fan Performance — 50PG04 Horizontal Units48/50PG and PM Fan Performance — 50PG05 Horizontal Units Fan Performance — 50PG06 Horizontal Units48/50PG and PM Fan Performance — 50PG07 Horizontal Units Fan Performance — 50PG08 Horizontal Units48/50PG and PM Fan Performance — 50PG09 Horizontal Units Fan Performance — 50PG12 Horizontal Units48/50PG and PM Fan Performance — 50PG14 Horizontal Units Available External Static Pressure in. wg Available External Static Pressure in. wg Available External Static Pressure in. wg Available External Static Pressure in. wg Available External Static Pressure in. wg 48/50PG and PM Available External Static Pressure in. wg 2.12 48/50PG and PM 2.18 Airflow 48/50PG and PM Airflow Airflow 48/50PG and PM Airflow 48/50PG and PM Airflow 48/50PG and PM 48/50PG and PM NOTES Airflow 48/50PG and PM GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES Air Quantity Limits 48PM16−28 Units APPENDIX D — ADDITIONAL START−UP DATAAir Quantity Limits 50PG03−14 Units Air Quantity Limits 48PG03−14 Units 48/50PG and PM Evaporator Fan Motor Specifications − 48/50PG 48/50PG and PM 48/50PG DRIVEVOLTAGE/PHASEEFFICIENCY MAX BHP ORIENTATION Evaporator Fan Motor Specifications − 48PM16−2848/50PG and PM UNIT 48/50PG and PM UNIT 48PMORIENTATION DRIVE Evaporator Fan Motor Specifications − 50PM16−2848/50PG and PM UNIT 50PM 16 20 48/50PG and PM UNIT Fan Rpm at Motor Pulley Settings* − 48/50PG Fan RPM at Motor Pulley Settings* − 48PM16−2848/50PG and PM 48/50PG and PM Fan RPM at Motor Pulley Settings* − 50PM16−28 ELECTRIC 48/50PG and PM Economizer CONTROL SET POINT AND CONFIGURATION LOG INDICATE UNIT SETTINGS BELOWMODE — CONFIGURATION COOL MODE — CONFIGURATION contCooling Configuration 48/50PG and PM MODE - CONFIGURATION cont 48/50PG and PMCOOL cont COOL cont MODE — CONFIGURATION contCooling Configuration 48/50PG and PM MODE - CONFIGURATION cont Economizer Configuration48/50PG and PM 48/50PG and PM MODE - CONFIGURATION cont Linkage Staging PID kP MODE - CONFIGURATION contCCN CONFIGURATION 48/50PG and PM 48/50PG and PM MODE — CONFIGURATION cont ELECTRICAL UNIT START-UPCHECKLISTI. PRE-START-UP II.START-UP