Evaporator Coil Temp 1 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 1 |
Condenser Coil Temp 1 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 1 |
Evaporator Coil Temp 2 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 2 |
Condenser Coil Temp 2 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 2 |
Evaporator Coil Temp 3 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 3 |
Condenser Coil Temp 3 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 3 |
Evaporator Coil Temp 4 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 4 |
Condenser Coil Temp 4 Sensor Failure |
Input unreliable and Number of Cooling Stages >= 4 |
Building Pressure Sensor Failure |
Input unreliable |
Outdoor Air Temperature Sensor Failure |
Input unreliable |
Return Air Temperature Sensor Failure |
Input unreliable and Variable Speed Fan |
Supply Air Temperature Sensor Failure |
Input Unreliable AND (Econ Comm Status = Online OR Mixed Air
Sequencer = DAT Control) |
Unit Shutdown Due to Supply Fan Overload |
FAN OVR Trip (but less than three in one hour as that would
cause 'Unit Locked Out Due to Supply Fan OL') |
Main Controller Calibration Error |
Missing Cal Data |
FDDM Controller Calibration Error |
Missing Cal Data |
Econ Controller Calibration Error |
Missing Cal Data |
4-Stage Controller Calibration Error |
Missing Cal Data |
Unit Shutdown Due to Air Proving Switch |
Cmd but no proof for >= 90 seconds. If this happens less than three in 1.5 hours;
otherwise that would cause 'Unit Locked Out Due to APS') |
FDDS Controller Calibration Error |
Missing Cal Data |
Firmware versions do not match
package
|
Firmware versions between two or more of the controllers
do not match
|
C1 Shutdown - Exceeded Op Env Limits
|
C1 was operating outside the envelope
|
C1 Shutdown - High Discharge Pressure
|
Discharge Line Pressure 1 surpassed above 600 psi
|
C1 Shutdown - Low Suction Pressure
|
Suction Pressure 1 descended below 80 psi
|
C2 Shutdown - High Discharge Pressure
|
Discharge Line Pressure 2 surpassed above 600 psi
|
C2 Shutdown - Low Suction Pressure
|
Suction Pressure 2 descended below 80 psi
|
C3 Shutdown - High Discharge Pressure
|
Discharge Line Pressure 2 surpassed above 600 psi
|
C3 Shutdown - Low Suction Pressure
|
Suction Pressure 2 descended below 80 psi
|
C4 Shutdown - High Discharge Pressure
|
Discharge Line Pressure 1 surpassed above 600 psi
|
C4 Shutdown - Low Suction Pressure
|
Suction Pressure 1 descended below 80 psi
|