Carrier 50HCQA Installation Manual Page 87
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87
APPENDIX A — LOCAL DISPLAY AND CCN TABLES
MODE — OPERATING MODES (cont)
ITEM EXPANSION RANGE UNITS
CCN TABLE/
S u b --- T A B L E
CCN POINT
CCN
WRITE
STATUS
DISPLA Y
WRITE
STA TUS
COOL (cont) Cool Mode Diagnostic COOLDIAG
R.LP.B Reheat2 SSP Override B No/Yes RHBLPOV
AVL.R Available Reheat2 Stages x AVLRSTGS
REQ.R Requested Reheat2 Stages x REQRSTGS
ACT.R Actual Reheat2 Stages x ACTRSTGS
CRC Cool--->Reheat1 Control Off/On CRC
RH2.A Reheat2 Valve A Off/On RH2_ A
RH2.B Reheat2 Valve B Off/On RH2_B
HEAT Heat Mode Diagnost ic HEATDIAG
HEAT In Heating Mode? No/Y es IN_HEAT
OK.HT OK to Select Heat Mode? No/Yes OKTOHEAT
MS.TG Mode Select Timeguard xxx secs HEATMSTG
H.LOC Heat OAT Lockout No/Yes HEATLOCK
HT.LO Heating Lockout Temp xxx °F OATLHEAT
IGC.F IGC Fan Request IDF_FDBK
F. M O D Indoor Fan Mode x IDF_MODE
F.SPD Commanded Fan Speed xxx % FANSPEED
AVL.H Available Heating Stages x AVLHSTGS
REQ.H Requested Heating Stages x REQHSTGS
LMT.H Max Heat Stage In Effect x HSTGLIMT
ACT.H Actual Heating Stages x ACTHSTGS
HT.1 Heat Stage 1 Relay Off/On HEAT_1
HT.2 Heat Stage 2 Relay Off/On HEAT_2
SAT Supply Air Temperature
SAT.H SAT Heat Mode Sensing Disable/Enable SAT_HEAT
SAT Supply Air Temperature xxx.x °F SAT_DISP
SAM.L Maximum SAT Lower Level xxx.x °F SATMAX_L
SAM.U Maximum SAT Upper Level xxx.x °F SATMAX_H
SPT Space Temperature
SPT Space Temperature xxx.x °F SP ACE_T forcible forcible
DMD.H Heating Demand xxx.x ^F HEAT_DMD
TRD.H Heat Demand d/dt (F/min) xxx.x HTDTREND
HT.PD SPT Heat Demand (+) Level xx.x ^F HDEM_POS
HT.ND SPT Heat Demand (--- ) Level xx.x ^F HDEM_NEG
H.LAG Heat Thermal Lag Factor x.x HEAT_LAG
ECON Economizer Diagnostic ECONDIAG
EC.EN Economizer Installed No/Y es ECONO
OK.EC OK to Use Economizer? No/Yes ECONCOOL
OCC Currently Occupied No/Yes OCCUPIED forcible forcible
F. M O D Indoor Fan Mode x IDF_MODE
F.SPD Commanded Fan Speed xxx % FANSPEED
COOL In Cooling Mode? No/Yes IN_COOL
OAT Outdoor Air Temperature xxx.x °F OA_TEMP forcible forcible
RAT Return Air Temperature xxx.x °F RETURN_T forcible
E.LOC Econo Cool OAT Lockout No/Yes ECONLOCK
D.LOC Econo Diff Dbulb Lockout No/Yes DFDBL OCK
EH.LO Econo Cool H i Temp Limit xxx °F OATLECLH
EL.LO Econo Cool Lo Temp Limit xxx °F OATLECLL
FC.LO Free Cool Low Temp Limit xxx °F OATLUEFC
EN.LO Econo Cool Enth Lockout No/Yes ENTHLOCK
EC.MX Econo Cool Max Position xxx % ECONOMAX
AQ.DV IAQ DCV Mode No/Y es IN_IAQDV
AQ.MN Econo Min IAQ Position xxx % IAQMINP
AQ.OV IAQ Override Mode No/Yes IN_IAQOV
OVR.P IAQ Override Position xxx % IAQOVPOS
AQ.LO OAQ Lockout Mode No/Y es IN_OAQLO
OAQ.L OAQ Lockout Limit xxxx OAQLOCK
LP.OV Lo Refrig Press Override No/Yes IN_LPOV
EC.CP Econo Commanded Position xxx % ECONOCMD forcible forcible
EC.AP Econo Actual Position xxx % ECONOPOS
EC.MP MinPositioninEffect xxx % MIN_POS forcible forcible
C.ANG Actuator Control Angle xx.x CTLANGLE
E.CAL Economizer Calibrating No/Y es ECOINCAL
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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