Carrier 50HCQA Installation Manual Page 94
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94
Table 31 — VFD Motor Default Configurations (cont)
UNIT SIZE
(Digits
7&8)
UNIT
VOLTAGE
(Digit 12)
UNIT
STATIC
OPTION
(Digit 10)
COMFORTLINK CCN POINT (DISPLA Y MENU ITEM)
VFD1NVLT
(N.VLT)
VFD1NAMP
(N.AMP)
VFD1NFRQ
(N.FRQ)
VFD1NRPM
(N.RPM)
VFD1NPWR
(N.PWR)
VFD1MAXA
(MAX. A)
20
208/230v
(5)
V --- L o w ( 1 ) 230 11.7 60Hz 1725 3.7 13.5
V --- M e d i u m ( 2 ) 230 13.6 60H z 1740 5.3 15.6
V--- High (3) 230 17.1 60Hz 1760 5.0 19.7
H --- L o w ( 5 ) 230 11.7 60Hz 1725 3.7 13.5
H --- M e d i u m ( 6 ) 230 13.6 60Hz 1740 5.3 15.6
H---High (7) 230 17.1 60Hz 1760 5.0 19.7
460v
(6)
V --- L o w ( 1 ) 460 5.4 60Hz 1725 3.7 6.2
V --- M e d i u m ( 2 ) 460 6.4 60Hz 1740 5.3 7.4
V--- High (3) 460 8.6 60Hz 1760 5.0 9.9
H --- L o w ( 5 ) 460 5.4 60Hz 1725 3.7 6.2
H --- M e d i u m ( 6 ) 460 6.4 60Hz 1740 5.3 7.4
H---High (7) 460 8.6 60H z 1760 5.0 9.9
575v
(1)
V --- L o w ( 1 ) 575 4.9 60Hz 1725 3.7 5.6
V --- M e d i u m ( 2 ) 575 6.0 60Hz 1725 5.3 6.9
V--- High (3) 575 7.6 60Hz 1745 5.0 8.7
H --- L o w ( 5 ) 575 4.9 60Hz 1725 3.7 5.6
H --- M e d i u m ( 6 ) 575 6.0 60Hz 1725 5.3 6.9
H---High (7) 575 7.6 60H z 1745 5.0 8.7
24
208/230v
(5)
V --- L o w ( 1 ) 230 13.6 60Hz 1740 5.3 15.6
V --- M e d i u m ( 2 ) 230 17.1 60H z 1760 5.0 19.7
V--- High (3) 230 23.5 60Hz 1760 7.5 27.0
H --- L o w ( 5 ) 230 13.6 60Hz 1740 5.3 15.6
H --- M e d i u m ( 6 ) 230 17.1 60Hz 1760 5.0 19.7
H---High (7) 230 23.5 60Hz 1760 7.5 27.0
460v
(6)
V --- L o w ( 1 ) 460 6.4 60Hz 1740 5.3 7.4
V --- M e d i u m ( 2 ) 460 8.6 60Hz 1760 5.0 9.9
V--- High (3) 460 11.9 60Hz 1760 7.5 13.7
H --- L o w ( 5 ) 460 6.4 60Hz 1740 5.3 7.4
H --- M e d i u m ( 6 ) 460 8.6 60Hz 1760 5.0 9.9
H---High (7) 460 11.9 60Hz 1760 7.5 13.7
575v(1)
V --- L o w ( 1 ) 575 6.0 60Hz 1725 5.3 6.9
V --- M e d i u m ( 2 ) 575 7.6 60Hz 1745 5.0 8.7
V--- High (3) 575 9.0 60Hz 1750 7.5 10.4
H --- L o w ( 5 ) 575 6.0 60Hz 1725 5.3 6.9
H --- M e d i u m ( 6 ) 575 7.6 60Hz 1745 5.0 8.7
H---High (7) 575 9.0 60H z 1750 7.5 10.4
28
208/230v
(5)
V --- L o w ( 1 ) 230 13.6 60Hz 1740 5.3 15.6
V --- M e d i u m ( 2 ) 230 17.1 60H z 1760 5.0 19.7
V--- High (3) 230 23.5 60Hz 1760 7.5 27.0
H --- L o w ( 5 ) 230 13.6 60Hz 1740 5.3 15.6
H --- M e d i u m ( 6 ) 230 17.1 60Hz 1760 5.0 19.7
H---High (7) 230 23.5 60Hz 1760 7.5 27.0
460v
(6)
V --- L o w ( 1 ) 460 6.4 60Hz 1740 5.3 7.4
V --- M e d i u m ( 2 ) 460 8.6 60Hz 1760 5.0 9.9
V--- High (3) 460 11.9 60Hz 1760 7.5 13.7
H --- L o w ( 5 ) 460 6.4 60Hz 1740 5.3 7.4
H --- M e d i u m ( 6 ) 460 8.6 60Hz 1760 5.0 9.9
H---High (7) 460 11.9 60Hz 1760 7.5 13.7
575v
(1)
V --- L o w ( 1 ) 575 6.0 60Hz 1725 5.3 6.9
V --- M e d i u m ( 2 ) 575 7.6 60Hz 1745 5.0 8.7
V--- High (3) 575 9.0 60Hz 1750 7.5 10.4
H --- L o w ( 5 ) 575 6.0 60Hz 1725 5.3 6.9
H --- M e d i u m ( 6 ) 575.0 7.6 60Hz 1745.0 5.0 8.7
H---High (7) 575.0 9.0 60Hz 1750.0 7.5 10.4
NOTE: If the unit is not equipped with a VFD (Model number digit 17 is A,B,C,D,E,or F) the above configurations w ill default to standard values: N.VLT=230, N.AMP=28.5, . . .
N.FRQ=60Hz, N.RPM=1760, N.PWR=7.5, and MAX.A=32.8
For proper operation, there are three jumper wires that must remain
installed and the VFD must be set to the auto mode. The 3 jumpers
are shown on the unit schematic and are connected through a plug
called PL25. These jumpers set the VFD to start enabled, run
enabled, and tie the common bus together. The VFD has 2 LEDs
on its front panel to indicate operating status. See below and VFD
Troubleshooting section for details on VFD faults and alarms. The
VFD faults can be reset with the VFD keypad or through the
ComfortLink controls (AlarmsR.CUR =Yes).
The Green LED on steady indicates power is on the VFD, flashing
Green indicates an alarm condition detected. Alarms are advisory
in nature. These indicate a problem has been detected by the VFD’s
diagnostics but this problem will not require a shutdown.
The Red LED steady or flashing indicates a fault condition is
detected. A fault is a significant internal situation for the VFD or
Motor. Faults will typically shutdown the motor.
ComfortLINK v2.X
- 48/50HC 04---28 1
- Single Package Rooftop Units 1
- SAFETY CONSIDERATIONS 2
- BASIC CONTROL USAGE 3
- Accessory Navigator Display 4
- Operation 4
- CCN Tables and Display 4
- Force Hierarchy 5
- Generic Status Display Table 5
- START-UP 6
- Condenser Fans and Motors 7
- Return--Air Filters 7
- Outdoor--Air Inlet Screens 7
- Accessory Installation 7
- Orifice Change (48HC) 7
- Gas Heat (48HC) 8
- Economizer 9
- SERVICE TEST 12
- THIRD PARTY CONTROL 13
- CONTROLS OPERATION 14
- General Operation 15
- Occupancy Determination 16
- Cooling Mode Control 18
- Staging Control 18
- Compressor Control 19
- Outdoor Fan Control 19
- Heating Mode Control 19
- Heat Relay Control 20
- Economizer Position % 21
- Fan Speed % 21
- Free Cooling 22
- Thermostat Control 22
- Space Sensor Control 22
- Unoccupied Free Cooling 22
- Power Exhaust (CV units) 22
- Power Exhaust (SAVt units) 23
- IAQ (Analog Input) 23
- IAQ (Switch Input) 24
- Fan Enable (Switch Input) 24
- Dehumidification Demand 25
- Reheat Modes 25
- Temperature Compensated Start 29
- Carrier Comfort Network (CCN) 30
- Configuration 30
- Demand Limit 30
- TROUBLESHOOTING 31
- Complete Unit Stoppage 32
- Restart Procedure 32
- Alarms and Alerts 32
- MBB --- Main Base Board 37
- Green LED 39
- Yellow LED 39
- Cooling Troubleshooting 40
- Economizer Troubleshooting 42
- Heating Troubleshooting 43
- IDM – Induced-Draft Motor 44
- “AUTO” position 44
- Phase Loss Protection 46
- Thermistor Troubleshooting 46
- CIRCUIT “B” 49
- CIRCUIT “A” 49
- Transducer Troubleshooting 50
- Forcing Inputs and Outputs 50
- MAJOR SYSTEM COMPONENTS 53
- RED LED - STATUS GREEN LED 62
- LEN (LOCAL EQUIPMENT NETWORK) 62
- YELLOW LED 62
- CCN (CARRIER COMFORT NETWORK) 62
- INSTANCE JUMPER (SET TO 1) 62
- RED LED-STATUS 66
- 48/50HC 04--14 Units — 67
- 48/50HC 17--28 Units — 68
- Central Terminal Board (CTB) 68
- Scrolling Marquee Display 70
- Accessory Navigatort Display 70
- Interface 70
- Protective Devices 72
- Field-Installed Accessories 72
- MODE — RUN STATUS 75
- MODE — RUN STATUS (cont) 76
- MODE — SERVICE TEST 78
- MODE — TEMPERATURES 78
- MODE — PRESSURES 78
- MODE — INPUTS 79
- MODE — OUTPUTS 79
- MODE — SET POINTS 79
- MODE — CONFIGURATION 80
- MODE — TIME CLOCK 85
- CCN ONLY TABLES 85
- MODE — OPERATING MODES 86
- MODE — OPERATING MODES (cont) 87
- MODE — ALARMS 89
- VFD Diagnostics 95
- Table 32 — FAULT CODES (cont) 96
- Table 33 – ALARM CODES 97
- INDICATE UNIT SETTINGS BELOW 98
- MODE — CONFIGURATION (cont) 100
- ComfortLINK v2.X 100
- ELECTRICAL 103
- TEMPERATURES 103
- PRESSURES 103
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