Carrier 48/50PD05 manual Appendix B VFD Information, VFD Terminal Designations

Page 81

APPENDIX B - VFD INFORMATION

On 48/50PD units, the supply fan speed is controlled by a 3-phase VFD. The VFD is located in the supply fan section behind an indoor fan scroll. The VFD speed is controlled directly by the ComfortLinkt controls through a 0-10Vdc signal based on a space temperature sensor. The VFD has a display, which can be used for service diagnostics, but setup of the control is to be done through the scrolling marquee display.

The VFD is powered during normal operation to prevent condensation from forming on the boards during the off mode and is stopped by driving the speed to 0 (by sending a 0Vdc signal to the VFD). The units use ABB VFDs. The interface wiring for the VFDs is shown in the figure below. The VFD connects to ComfortLink through a 0-10Vdc output on the AUX1 board. Terminal designations are shown in the Terminal Designation table. Configurations are shown in the VFD Configurations table.

Table 39 — VFD TERMINAL DESIGNATIONS

 

 

 

TERMINAL

 

FUNCTION

 

 

 

 

 

 

U1

 

 

 

 

 

V1

 

 

 

 

 

 

 

 

 

 

W1

 

 

 

Three

Phase main circuit input power supply

 

 

 

 

 

 

 

 

 

U2

 

 

 

 

 

V2

 

 

 

Three

Phase AC output to motor, 0V to maximum input

 

 

 

W2

 

 

 

voltage level

 

 

 

 

 

 

 

 

X1---

11

(GND)

 

 

X1

12

(COMMON)

Factory

supplied jumper

 

 

 

 

 

X1---

10

(24VDC)

 

 

X1

13

(DI

1)

Run (factory supplied jumper)

 

 

 

 

X1---

10

(24VDC)

Start Enable 1 (factory supplied jumper). When opened,---

X1

16

(DI

4)

the drive goes to emergency stop

 

 

 

 

 

X1---

2 (AI---

1)

 

 

X1

3 (AGND)

Factory wired for 0 10Vdc remote input

 

 

 

 

 

 

0-10Vdc

A48-7712

48/50PD

C08674

Fig. 40 - VFD Wiring

81

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Contents Table of Contents What to do if you smell gas Safety ConsiderationsBasic Control Usage GeneralScrolling Marquee Mode and Menu Display Structure System Pilott and Touch Pilot DevicesCCN Tables and Display START-UP Internal Wiring Power SupplyEvaporator Fan Condenser Fans and MotorsControls Quick SET-UP CCN Communication AccessoriesFan Status Setting an Occupied Time Schedule Weekdays Only for 730 toFilter Status TimeclockProgramming Operating Schedules Service TestIndependent Outputs Fan TestControls Operation Third Party ControlModes Unit ConfigurationOccupancy Determination General Operating SequenceIndoor Fan Operation Compressor OperationOutdoor Fan Operation Economizer OperationUnoccupied Free Cooling Indoor Air Quality IAQ Cooling Modes Cool Supply Air Set Point For all units with Economizers Ventilation ModeFor units with Enthalpy Control Demand Control VentilationHeating Modes Gas Heat Start-Up Supply-Air Temperature Sensor SATSetting Up the System Temperature Compensated StartTemp Comp Strt Cool Factr TCS.C Temp Comp Strt Heat Factr TCS.HDemand Limit Carrier Comfort Network Ccnr ConfigurationAlarm Handling TroubleshootingRestart Procedure Complete Unit StoppageCommunication Failures Alarms and AlertsAlert Code T074 Space Temperature Thermistor Failure Alert Code T073 Outdoor Air Temperature Thermistor FailureAlert Code T075 Supply Air Temperature Thermistor Failure Alarm Code A154 Serial Eeprom Hardware FailureAlarm Code A156 Critical Serial Eeprom Storage Fail Error Alarm Code T155 Serial Eeprom Storage Failure ErrorAlarm Code A200 Linkage Timeout Comm Failure Alarm Code A404 Fire ShutdownAlert Code T416 OAQ Input Out of Range Alert Code T415 IAQ Input Out of RangeComfortLink Alarm Codes Cooling Troubleshooting Cooling Service Analysis Digital Scroll Controller DSC TroubleshootingDSC Red LED Flash Codes Flash Code 4 ⎯ Locked RotorEconomizer Service Analysis Economizer TroubleshootingHeating Troubleshooting Variable Frequency Drive VFD TroubleshootingPhase Loss Protection IGC Service Analysis Logic Electric Heat Service Analysis IGC Board LED Alarm CodesLED FlashAir Temperatures Thermistor TroubleshootingRefrigerant Temperatures Thermistor/Temperature Sensor CheckTransducer Troubleshooting Forcing Inputs and OutputsSensor Trim Temp Voltage Resistance Drop Temp Voltage Resistance Temp F Drop Degree C Degree F General Major System ComponentsPressure Voltage Psig48PD Control Wiring Schematic 50PD Control Wiring Schematic 48/50PD Power Wiring Schematic and Legend Typical Unit Component Arrangement Main Base Board MBB SettingFIL.S MBB ConnectionsEconomizer Control Board ECB Center of the board. Do not change this settingRM.OC ECB ConnectionsCommunication Modulation Board AUX1CMP.A Digital Scroll Control Board DSCVariable Frequency Drive VFD Variable Frequency Drive VFDIntegrated Gas Control IGC Board Integrated Gas Control IGC BoardTB1 Low Voltage Terminal StripField-Installed Accessories Accessory Navigatort DisplayScrolling Marquee Display Carrier Comfort Network Ccnr InterfaceSpace Temperature Sensor Averaging Space Temperature Sensor T-58Space Temperature Sensor Averaging Service Coil Maintenance and Cleaning Recommendation CleaningPeriodic Clean Water Rinse Routine Cleaning of Round-Tube Coil SurfacesFilters Condensate Drain PanOutdoor-Air Inlet Screens Main Burner 48PDEvaporator Fan Service and Replacement Evaporator Fan Performance AdjustmentLubrication Evaporator Fan Belt Tension Adjustment Variable Frequency Drive VFD ReplacementCondenser-Fan Adjustment Verify Sensor Performance Economizer Operation During Power FailureEvacuation Refrigerant ChargePuronR Refrigerant Gas Valve AdjustmentAltitude Compensation 48PG03-07 Elevation Natural GAS PropaneMain Burners High AltitudeFilter Drier Protective DevicesDiagnostic LEDs Replacement PartsRelief Devices Compressor Sound ShieldAppendix a Local Display and CCN Tables Mode RUN StatusAlrmdisp = CCN StrtOnly Generic = CCNMode Service Test Mode TemperaturesMode Pressures Mode Inputs Mode SET PointsOutputs Mode OutputsMode Configuration HTR HT.TYMRT.H MOT.HIA.FN IA.CFII.CF II.FNSPT.C TrimSPT.T SAT.CCCN only Tables Mode Time ClockMode Operating Modes ACT.H OK.HTEN.LO AQ.DVExpansion Range Default CCN CCN Point CCN Write Mode AlarmsExpansion Range Units TABLE/SUB---TABLE StatusVFD Terminal Designations Appendix B VFD InformationVFD Configurations VFD Operation Standard Display ModeVFD Modes Start Up with AssistantStart-Up Assistant Mode Parameters ModeChanged Parameters Mode Drive Parameter Backup ModeVFD Diagnostics Correcting Alarms VFD MaintenanceHistory Heat SinkFault Codes 101---105201---206 1001 10001002 1003Alarm Codes Maintenance IntervalsMaintenance Interval Main Fan Replacement Control Panel CleaningBattery Replacement Fan Performance 48PDD05 Vertical Units Appendix C START-UP DataFan Performance 48PDE05 Vertical Units AirflowFan Performance 48PDD06 Vertical Units Rpm Bhp 1500 Fan Performance 48PDE06 Vertical UnitsAvailable External Static Pressure in. wg CFMFan Performance 48PDD05 Horizontal Units Fan Performance 48PDE05 Horizontal UnitsBhp Rpm 1026 1086 1144 1199 1253 Fan Performance 48PDD06 Horizontal UnitsFan Performance 48PDE06 Horizontal Units Fan Performance 50PD06 Vertical Units Fan Performance 50PD05 Vertical UnitsBhp Rpm 1500 Fan Performance 50PD05 Horizontal UnitsGeneral Notes for FAN Performance Data Tables Appendix D Additional START-UP Data Indicate Unit Settings below Control SET Point and Configuration LOGCCN Point Entry 103 104 PRE-START-UP Unit START-UP Checklist106

48/50PD05 specifications

The Carrier 48/50PD05 is a remarkable addition to Carrier's lineup of rooftop units, offering advanced cooling and heating solutions for commercial applications. Designed for medium-sized buildings, this unit is well-suited for both new installations and as a replacement for older systems, thanks to its versatile features and efficient performance.

One of the standout features of the 48/50PD05 is its energy efficiency. It incorporates state-of-the-art technology to achieve high Seasonal Energy Efficiency Ratios (SEER) and EER ratings, reducing operational costs while delivering superior comfort. The unit is also compliant with the latest energy regulations, making it an environmentally friendly choice for building owners concerned about sustainability.

The 48/50PD05 is equipped with a highly efficient scroll compressor, which not only enhances performance but also contributes to quiet operation. This is a significant advantage in commercial spaces where noise levels need to be kept in check for comfort and productivity. Additionally, the unit includes advanced airflow design, ensuring even distribution of conditioned air throughout the space.

Technologically, the Carrier 48/50PD05 features Carrier's Infinity Control system, which allows for precise control of indoor climate. This intelligent control mechanism can be integrated with smart building management systems, enabling users to monitor and manage energy use effectively. Wi-Fi connectivity is also available, providing remote access for real-time adjustments and diagnostics.

Durability is another characteristic of the 48/50PD05. Constructed with high-quality materials, the unit withstands various environmental conditions, ensuring longevity and reliability. Moreover, the modular design facilitates easy maintenance, making service procedures efficient and cost-effective.

In addition to cooling, the Carrier 48/50PD05 offers heating capabilities, often utilizing gas or electric heating options that can be tailored to the specific needs of a building. The unit can also be equipped with integrated economizers, allowing for free cooling during suitable outdoor conditions, further enhancing energy savings.

Overall, the Carrier 48/50PD05 stands out as a high-performance HVAC solution that combines efficiency, technology, and durability. It provides building owners with a versatile tool to ensure comfort while minimizing their environmental footprint. With a strong emphasis on energy savings and advanced control features, this rooftop unit is a smart investment for any commercial property.