Programming Guide for IntelliPak with Symbio 800
Note - Diagnostics with hyperlinks have more detailed troubleshooting information.
| Diagnostics | Target | Severity | Persistence | Condition/Response | Reset Level | |
| Airflow Assembly Failure X where X is “1” or “2” | Unit | Warning | Non-Latching | The unit is configured with Traq and the OA Damper > 50% and the Outdoor Airflow Local <= 0.02 * Design Air Flow for 10 consecutive seconds the diagnostic will be generated. The diagnostic will be cleared when Outdoor Airflow > 0.02 * Design Air Flow for 20 consecutive seconds. Possible causes: Tubing failure, wiring, and calibration solenoid failure. Approximately 0.25vdc at 0.0 iwc. Increasing voltage with increasing pressure. Traq air flow control is inhibited and the unit will fall back to alternate minimum ventilation control. |
Remote | |
| Airflow Press X Measurement Failure where X is “1” or “2” | Unit | Warning | Non-Latching | Diagnostic triggers if the null voltage delta reported from the sensor while performing zero calibration is greater than the “Max Air Flow Press Calibration Limit” Ventilation behavior: This diagnostic inhibits Traq air flow control and the unit will fall back to alternate minimum ventilation control. |
Remote | |
| Air Handler Phase Monitor | Unit | Warning |
Non-Latching With Firmware Versions 4.10.002 or > |
If the three phased wiring is detected out of sequence by the phase monitor, the on-board relay will open causing the binary input to open. The unit will communicate the phase monitor diagnostic. The unit will continue to operate. The phase monitor will also open its on board relay when there is a loss of a phase or a 20% voltage imbalance between phases. | Remote | |
| Compressor Contactor Failure CprsrXY where X is “1” or “2” where Y is “A”, “B” or “C” | Circuit | Immediate Shutdown | Latching | The compressor failed to prove off when commanded to shut down. If a compressor proving input is reporting that the compressor is still running 6 seconds after the Symbio 800 has Commanded it Off; then, this diagnostic shall be active, and the circuit will be shut down. Circuit X compressors will be commanded Off. Condenser fan operation and EXV valve control will continue in case the compressor is physically On. |
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| Compressor Failed to Start CprsrXY where X is “1” or “2” where Y is “A”, “B” or “C” | Circuit | Normal Shutdown | Latching | The compressor failed to start when commanded. The controller detected that the input was not proven. This could be the result of a compressor protection module fault. Circuit X operation will be inhibited. |
Local | |
| Compressor Unexpected Proving CprsrXY where X is “1” or “2” where Y is “A”, “B” or “C” |
Circuit | Immediate Shutdown | Non-Latching | Generated if the compressor proving contact has been open for 6 continuous seconds and the compressor is commanded off; then, subsequently closes for 6 continuous seconds indicating a compressor has started un-commanded. Circuit X operation will be inhibited. |
Local | |
| Condensate Overflow | Unit | Immediate | Non-Latching | A High condensate level was detected. This diagnostic will be generated, and the unit will shut down, if a high condensate level is detected for the first two times within a 72 hour period. The diagnostic will reset and the unit will be allowed to start if the condensate level drops below the trip point. This diagnostic indicates a problem with the mechanical float valve or the water drain piping. However it is assumed that this is a temporary problem and does not require service. If a third high condensate level is detected within 72 a period a Condensate Overflow Lockout diagnostic is generated. Note: VOM/EOM Behavior - During these modes this diagnostic changes behavior to a warning diagnostic and the active mode will be honored. |
Remote | |
| Condensate Overflow Lockout | Unit | Immediate | Latching | A High condensate level was detected. The lockout Will be generated if a high condensate level is detected a third time within a 72 hour period. This is indicating a recurring problem with the mechanical float valve or the water drain and may require service. Note: VOM/EOM Behavior - During these modes this diagnostic changes behavior to a warning diagnostic and the active mode will be honored. |
Remote | |
| Condenser Fan Fault XY Where X is “1” or “2” Where Y is “A”, “B”, “C”, or “D” |
Circuit | Warning | Non-Latching | One or more EC motor faults can cause this general fault. Call Service Support for assistance. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
Local | |
| Warning | Latching* | Condenser Fan X failure with other fans available: No action. | ||||
| Immediate Shutdown | Latching* | Condenser Fan X failure with other fans not available: Circuit is locked out. | ||||
| Condenser Fan Motor Locked XY Where X is “1” or “2” Where Y is “A”, “B”, “C” or “D” |
Circuit | Warning | Non-Latching | Motor shaft is prevented from rotating. * The Latching behavior for this diagnostic is latched in the drive. When the motor diagnostics are reset, this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
Local | |
| Warning | Latching* | Condenser Fan X failure with other fans available: No action. | ||||
| Immediate Shutdown | Latching* | Condenser Fan X failure with other fans not available: Circuit is locked out. | ||||
| Condenser Fan Motor Phase Loss XY Where X is “1” or “2” Where Y is “A”, “B”, “C” or “D” |
Circuit | Warning | Non-Latching | Loss of at least one phase on input voltage source. * The Latching behavior for this diagnostic is latched in the drive. When the motor diagnostics are reset, this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
Local | |
| Warning | Latching* | Condenser Fan X failure with other fans available: No action. | ||||
| Immediate Shutdown | Latching* | Condenser Fan X failure with other fans not available: Circuit is locked out. | ||||
| Condenser Fan Motor Overheated XY Where X is “1” or “2” Where Y is “A”, “B”, “C” or “D” |
Circuit | Warning | Non-Latching | Motor operating temperature is elevated. * The Latching behavior for this diagnostic is latched in the drive. When the motor diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
Local | |
| Warning | Latching* | Condenser Fan X failure with other fans available: No action | ||||
| Immediate Shutdown | Latching* | Condenser Fan X failure with other fans not available: Circuit is locked out. | ||||
| Condenser Phase Monitor | DX Cooling | Immediate Shutdown |
Non-Latching With Firmware Versions 4.10.002 or > |
If the three phased wiring is detected out of sequence by the phase monitor, the on-board relay will open causing the binary input to open. The unit will shut down mechanical cooling. The phase monitor will also open its on board relay when there is a loss of a phase or a 20% voltage imbalance between phases. | Remote | |
| Discharge Air High Temperature Detected | Unit | Immediate Shutdown | Latching | If the Discharge Air Temperature exceeds 200F then an Immediate Stop will be generated. This must be from the Local Discharge Air Temperature sensor (not an arbitrated value). Check unit airflow, supply fan operation, sensor reading. Unit operation is inhibited. |
Local | |
| Discharge Air Iso Damper Closed | Unit | Immediate Shutdown | Latching | During unit operation with supply fan on, the Discharge Air Isolation Damper position (voltage) indicates the damper is below the Isolation Damper Position Prove Setpt – 10%. | Remote | |
| Discharge Air Iso Damper Failed to Open | Unit | Immediate Shutdown | Latching | When commanded to open, the Discharge Air Isolation Damper position (voltage) has remained below the Isolation Damper Position Prove Setpt for 5 continuous minutes. | Remote | |
| Discharge Air Iso Damper Failed to Close | Unit | Warning | Non-Latching | When commanded to close, the Discharge Air Isolation Damper position (voltage) has remained more than 10% open for 5 continuous minutes. | Remote | |
| Discharge Air Iso Damper Input | Unit | Immediate Shutdown | Latching | The Discharge Air Isolation Damper Voltage Input has failed out of range for 5 continuous seconds. This voltage is an indication of actual damper position. | Remote | |
| Discharge Air Static Pressure Limit Auto | Unit | Immediate | Non-Latching | The supply air static pressure exceeded the Duct Static Pressure High Limit Setpoint for at least one second continuously. The unit will shut down but will be allowed to restart once the pressure falls below the high limit setpoint. Note: VOM/EOM Behavior - During these modes this diagnostic changes behavior to a warning diagnostic and the active mode will be honored. If the mode has the supply fan On its speed will be reduced to minimum. |
Remote | |
| Discharge Air Static Pressure Limit Manual | Unit | Immediate | Latching | The supply air pressure has exceeded the Duct Static Pressure High Limit Setpoint for the 3rd consecutive time without the supply fan running for 3 continuous minutes. (If the fan runs for 3 continuous minutes the counter will be reset.) The unit will shut down but will not be allowed to restart even if the pressure falls below the high limit setpoint. Note: VOM/EOM Behavior - During these modes this diagnostic changes behavior to a warning diagnostic and the active mode will be honored. If the mode has the supply fan On its speed will be reduced to minimum. |
Remote | |
| Discharge Air Temperature Sensor Failure | Unit | Warning | Non-Latching | The Supply Air Temperature sensor has failed. If no other source for Discharge Air Temperature all heating, cooling, and economizer capacity control is terminated. |
Remote | |
| Discharge Pressure Sensor CktX where X is “1” or “2” | Circuit | Immediate Shutdown | Latching | The discharge pressure sensor for circuit X has failed out of range. Circuit X operation will be inhibited. |
Remote | |
| Duct Static Pressure Active is Invalid | Unit | Warning | Non-Latching | There is no valid source for Discharge Pressure Sensor Active. All sources are unavailable. VVDA units only. See ‘Duct Static Pressure Local is Invalid’ below for VVDA units. |
Remote | |
| Duct Static Pressure Local is Invalid | Unit | Warning* | Non-Latching | There is no valid source for Discharge Pressure Sensor Local. Both the local wireless and wired sensors are unavailable. For all units except when in Supply Fan Bypass. For VVDA units: • The supply fan speed is overridden to minimum speed. • DX Cooling is allowed • All heating is disabled • Return Fan, if installed, remains in-control For CVDA, CVZT and VVZT units: • The supply fan operation is normal • High Duct Static Limit Protection, High Duct Static Limit Trip, and Full Airflow Limit Control is disabled. • Return Fan, if installed, remains in-control Note: Failure during active Manual Override, VOM or EOM operation: The active mode will be honored. If the mode has the supply fan On, its speed will be reduced to minimum and electric and gas heating will be disabled. *Failure during Supply Fan Bypass operation: The supply fan will be commanded Off and all other components turned Off or Closed. The diagnostic changes behavior to an Immediate Shutdown. |
Remote | |
| Duct Static Pressure Measurement Failure | Unit | Immediate Shutdown | Latching | Diagnostic triggers if the null voltage delta reported from the sensor while performing zero calibration is greater than the “Max Duct Static Press Calibration Limit” | Remote | |
| Emergency Override Mode Pressurize | Unit | Warning | Non-Latching | The unit is following Emergency Override Pressurize. | Local | |
| Emergency Override Mode Depressurize | Unit | Warning | Non-Latching | The unit is following Emergency Override Depressurize. | Local | |
| Emergency Override Mode Purge | Unit | Warning | Non-Latching | The unit is following Emergency Override Purge. | Local | |
| Emergency Override Mode Shutdown | Unit | Warning | Non-Latching | The unit is following Emergency Override Shutdown. | Local | |
| Emergency Override Mode Fire | Unit | Warning | Non-Latching | The unit is following Emergency Override Fire. | Local | |
| Emergency Stop | Unit | Immediate Shutdown | Latching | Emergency stop feedback input has Opened. Time to trip from input opening to unit stop shall be 0.1 to 1.0 seconds. Unit operation is inhibited. |
Local | |
| Energy Recovery Preheat | Energy Wheel | Immediate Shutdown | Latching | Energy Recovery Frost Inhibit mode occurs three times in a 24 hour period [Energy Wheel is disabled.] |
Local | |
| Energy Wheel Filter Pressure Sensor | Energy Wheel | Warning | Non-Latching | Hex IO module fault code for Pbits or Flowbits 21-bit signed result (0x0F_FFFF) Note: The Hex IO cannot detect when the ground wire for the sensor goes open circuit. No unit response. |
Remote | |
| Energy Wheel Filter Diff Press Setpoint Exceeded | Energy Wheel | Warning | Latching | When feedback value is greater than the setpoint. | Remote | |
| Energy Wheel Leaving Temperature Sensor | Energy Wheel | Warning | Non-Latching | The Energy Wheel Leaving Temperature sensor has failed out of range. [This drives a ‘fall back’ response for Energy Wheel. Heating disabled, Cooling continues] |
Remote | |
| Energy Wheel Proving Failure | Energy Wheel | Immediate Shutdown | Latching | The energy wheel must be operational for 5 minutes to stabilize airflow temperatures before this diagnostic will be allowed. Once this condition has been met, this diagnostic will be generated when both of the following conditions have existed for 5 continuous minutes: • The absolute difference between Outdoor Air Temperature and Return Air Temperature is ≥13°F. • the absolute difference between Return Air Temperature and Energy Wheel Leaving Temperature is ≤ 3°F. Energy Wheel output is deenergized and both bypass dampers are opened. An active preheat event will be terminated. |
Remote | |
| Evaporator Leaving Air Temp Sensor Evap A [Single Evaporator] Evaporator Leaving Air Temperature EvapX [Split Evaporator] where X is “A” or “B” |
Unit | Warning | Latching | The Evaporator Leaving Air Temperature sensor on the circuit has failed out of range. The DX cooling continues to run but reheat for dehumidification is stopped. |
Remote | |
| Excessive Outdoor Air | Unit | Warning* | Non-Latching | The unit is in any mode that is not active economizer cooling. The OAD position has been greater than the minimum ventilation command by 10% for 5 continuous minutes. *Units configured for ERW or Ultra Low Leak Dampers: Same criteria as above OR the the OAD position is > 70% while the RAD position is < 30%. (In this case the damper command is at a value < to the RAD position.). The diagnostic changes behavior to a Latching, Immediate Shutdown. *Units Configured for 100% OA with no return air: The OAD position has been greater than the minimum ventilation command by 10% for 5 continuous minutes. Diagnostic will inhibit manual control of supply fan. The diagnostic changes behavior to a Latching, Immediate Shutdown. |
Remote | |
| Final Filter Diff Press Setpoint Exceeded | Unit | Warning | Latching | When feedback value is greater than the setpoint. | Remote | |
| Final Filter Pressure Sensor | Unit | Warning | Non-Latching | The filter pressure sensor has failed. No unit response. |
Remote | |
| Freeze Avoidance | Unit | Warning | Non-Latching | Fan off modes: [Equipment stop or Emergency Override or VOM] OA Temp < 45°F and Fan is Off and Freeze Avoidance Setpoint does not equal 0. Command Valve to Freeze Avoidance Setpoint |
Remote | |
| Gas Heat Fail | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. Gas heat controller has Reported an alarm. Error code from Heat controller can be used to get more detail if Symbio is not reporting a more specific Heat related diagnostic. |
Remote | |
| Heat Control Board Failure Manf X where X is “1” or “2” | Heat | Warning | Non-Latching | Gas heat control detects an internal failure. All burners on the manifold are unavailable until the condition is corrected. Modulating Gas Heat control boards:Verify 24 VAC signal input. Will allow another retry 10- 30 seconds after the error condition is created, and the error condition is cleared. Staged Gas Heat control boards: Verify gas valve relays, safety relays, etc. Will allow another retry 10 minutes after the error condition is created, and the error condition is cleared. A control board failure has occurred on the secondary 1287 on the first manifold. Does not lock out any burners associated with the first heat control board on the manifold. |
Remote | |
| Heat Discharge Air Flow Proving Manf X Where X is “1” or “2” | Heat | Warning | Non-Latching | For the first or second consecutive occurrence, the Air Flow Proving switch is open while a Firing Rate Demand is requested. For modulating gas, this corresponds to the R/W enable switch. For staged gas, this corresponds to the W1 switch. All burners on the manifold are unavailable. This could be open on the board connector. Will allow another call for heat once the proving switch is closed. |
Remote | |
| Heat Fail – Auto | Heat | Immediate Shutdown | Non-Latching | Heat Fail - Auto input is used with electric heat. There are multiple thermal limit switches wired in series. If any of the thermal limit switches open, Heat Fail – Auto diagnostic is set. Heat is immediately stopped. When the thermal limit switch closes, heat will be allowed to re-start and diagnostic will be cleared. |
Remote | |
| Heat Fail – Manual | Heat | Immediate Shutdown | Non-Latching | Heat Fail – Manual is also used with electric heat. There is a thermal limit switch that has a higher temperature open point then the auto reset switches. When the Manual thermal limit switch opens, Heat is stopped and Heat Fail – Manual diagnostic is set. The manual switch will require a service technician to physically reset the limit switch. When the limit switch is closed or power is restored after resetting the limit, the diagnostic will be cleared, and heat will be allowed. |
Remote | |
| Heat Failed Ignition Lockout Manf X Where X is “1” or “2” | Heat | Warning | Latching | Manifold 1 or 2 has tried unsuccessfully to start 12 times in a row with no ignition. The Heat Failed Ignition Delay Manf X Burner Y diagnostic has occurred 3 times in a row with no ignition. All burners on the manifold are unavailable. If this diagnostic occurred on manifold 2, it will not inhibit manifold 1 from running. A manual reset is required. |
Remote | |
| Heat Gas Valve Failure Manf X Burner Y where X is “1” or “2” where Y is “1”, “2” or “3” |
Heat | Warning | Non-Latching | Possible causes: Faulty wiring. Faulty control. Modulating Gas Heat control boards: The Valve Actuator did not reach a Park or Full On position. All burners on the manifold are unavailable until the condition is corrected. Will allow another retry 10-30 seconds after the error condition is created, and the error condition is cleared. Staged Gas Heat Control Boards: The gas valve state is lo when it must be hi, or hi when it must be lo. All burners on the manifold are unavailable until the condition is corrected. Will allow another retry 10 minutes after the error condition is created, and the error condition is cleared. |
Remote | |
| Heat Gas Valve Short Manf X Burner Y where X is “1” or “2” where Y is “1” or “2” |
Heat | Warning | Non-Latching | The burner gas valve is shorted to 24VAC. All burners on the manifold are unavailable until the condition is corrected. Will allow another retry 10 minutes after the error condition is created, and the error condition is cleared. Staged Gas Heat control boards only. Possible causes: Control needs to be replaced. Faulty wiring. |
Remote | |
| Heat Inducer High Press Manf X where X is “1” | Heat | Warning | Non-Latching | High air pressure switch is closed when inducer is off, or high air pressure switch is open when it is expected to be closed. All burners on the manifold are unavailable until the condition is corrected. Will allow another retry 10 minutes after the error condition is created, and the error condition is cleared. Staged Gas Heat control boards only. Note: This diagnostic will also trigger when getting a diagnostic from the second board in the heat section by way of the first board on circuit 1. |
Remote | |
| Heat Inducer Low Press Manf X where X is “1” | Heat | Warning | Non-Latching | Low air pressure switch is closed when inducer is off, or low air pressure switch is open when it is expected to be closed.All burners on the manifold are unavailable until the condition is corrected. Will allow another retry 10 minutes after the error condition is created, and the error condition is cleared. Staged Gas Heat control boards only. Note: This diagnostic will also trigger when getting a diagnostic from the second board in the heat section by way of the first board on circuit 1. |
Remote | |
| Heat Invalid ID Chip Manf 1 | Heat | Warning | Non-Latching | An invalid id chip condition has condition has occurred on the 1285’s own MODBUS server control board on the first manifold. Does not lock out any burners associated with the first heat control board on the manifold. Staged Gas Heat control boards only. Note: If the incorrect ID chip is inserted into the board simply based off of the current configuration, the first heat control board will display this as a comm loss coming from its slave board. |
Remote | |
| Heat Invalid ID Chip Manf X Where X is “1” or “2” | Heat | Warning | Non-Latching | ID chip contains invalid data or contains a different heating configuration than what is installed on the Trane controller. All burners on the manifold are unavailable until the condition is corrected. |
Remote | |
| Heat Open Fuse Manf X where X is “1” or “2” | Heat | Warning | Non-Latching | An open fuse condition has occurred. All burners on the manifold are unavailable until the condition is corrected. Modulating manifolds will allow another retry 10-30 seconds after the error condition is created, and the error condition is cleared. Fixed capacity manifolds will allow another retry 10 minutes after the error condition is created, and the error condition is cleared. Staged Gas Heat control boards only: Does not lock out any burners associated with the first heat control board on the manifold. |
Remote | |
| Heat Primary Limit Open Manf X Where X is “1” or “2” | Heat | Warning | Non-Latching | Diagnostic triggered when the cool down timer has expired, therefore indicates longer term failures, likely the roll out switch. Verify Primary Limit input. All burners on the manifold are temporarily unavailable. Staged Gas Heat control boards only: A primary limit condition has condition has occurred for an extended duration on the 1285’s own MODBUS server control board on the first manifold. Does not lock out any burners associated with the first heat control board on the manifold. |
Remote | |
| Heat Discharge Air Flow Proving Lockout Manuf X where X is “1” or “2 | Heat | Warning | Latching | The airflow Proving circuit is open, while a Firing Rate Demand is requested. This could be open on the board connector. Once the diagnostic has been manually reset, control will allow another call for heat. For Modulating Gas Heat, this corresponds to the R/W enable switch. For Staged Gas Heat , this corresponds to the W1 switch. All burners on the manifold are unavailable. |
Remote | |
| Heat Unexpected Flame Manf X Burner Y where X is “1” or “2” where Y is “1”, “2” or “3” |
Heat | Warning | Non-Latching | Flame is detected outside of normal operations by the flame rod. All burners on the manifold are unavailable. Modulating manifolds will allow another retry 10-300 seconds after the error condition is created (depends on the duration of the flame), and the error condition is cleared. Fixed capacity manifolds will allow another retry 10 minutes after the error condition is created, and the error condition is cleared. |
Remote | |
| Heat Weak Flame Signal Manf X Burner Y where X is “1” or “2” where Y is “1”, “2” or “3” |
Heat | Warning | Non-Latching | A low current flame rod measurement indicates an aged flame rod. This diagnostic may be an indication that flame detect sensor is weak. | Remote | |
| Heater Air Pressure Switch Fail - Closed | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater detected the Air Pressure switch input is closed during period it should be open and is reporting the error code. |
Remote | |
| Heater Air Pressure Switch Fail – Open | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater detected the Air Pressure switch input is open during period it should be closed. And is reporting the error code. Supply fan proving switch. |
Remote | |
| Heater Failed to Stage Manf X Burner Y where X is “1” or “2” where Y is “2” or “3” |
Heat | Immediate Shutdown | Non-Latching | A stage of heat failed to start that is not the first stage on a manifold. The diagnostic is set when a request for a stage of heat has not been successful after 60 seconds. The call for heat to all burners will be removed and allowed to start after the diagnostic is cleared. Auto clears after 60 seconds. | Remote | |
| Heater Failed to Start | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater failed to report progress in the starting phase after the Enable Relay was commanded closed. |
Remote | |
| Heater Gas Pressure Switch Fault | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater is detecting a Fault with the Gas Pressure Switch and is reporting error code. Applies to heaters using PME71.111 |
Remote | |
| Heater Gas Pressure Switch Open | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater is detecting the Gas Pressure Switch circuit is open when it should be closed. Applies to heaters using PME71.901 |
Remote | |
| Heater Loss of Flame | Heat | Normal Shutdown | Non-Latching | Ipak 1 and Ipak 2 only. The gas heater detected the loss of flame after flame was proven and is reporting the error code. Diagnostic will auto clear in 90s and another attempt to start will be allowed. It is expected that if there is a true gas/ignition sense issue that the No Flame at End of Ignition Diagnostics will eventually end in the Manual reset latching diagnostic. |
Remote | |
| Heater No Flame End of Ignition – Auto | Heat | Warning | Non-Latching | Ipak 1 and Ipak 2 only. The gas heater was unable to prove flame during ignition period and is reporting error code. The diagnostic will be reset in 90s and another start attempt will be allowed. |
Remote | |
| Heater No Flame End of Ignition – Manual | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater was unable to prove flame during ignition period and is reporting error code. This occurs on the 3rd failed ignition attempt in a row. Requires a manual reset. |
Remote | |
| Heater Running Unexpected | Unit | Immediate Shutdown | Latching | Ipak 1 and Ipak 2 Gas Heat Installed Gas heater is reporting a status of ON (phase 60 or phase 30), while the controller is requesting it OFF, for 15 seconds. This could happen due to incorrect wiring or failure of the Enable relay circuit. Unit will shutdown and allow the Supply Air Switch or High Temp to trip the heater. |
Local | |
| Heater Safety Limit Open | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater is detecting the Safety Limit circuit is open and is reporting error code. |
Remote | |
| Heater Unexpected Shutdown | Heat | Normal Shutdown | Latching | Ipak 1 and Ipak 2 only. The gas heater reported it is no longer running after a confirmed start, without enable relay being commanded open. |
Remote | |
| High Compressor Press Diff Lockout CktX where X is “1” or “2” |
Circuit | Immediate Shutdown | Latching | Compressor involute pressure differential exceeded allowable limits. Circuit X is inhibited. |
Remote | |
| High Compressor Press Differential CktX where X is “1” or “2” |
Circuit | Immediate Shutdown | Non - Latching | Compressor involute pressure differential exceeded allowable limits. Circuit X is inhibited. |
Remote | |
| Invalid Active Discharge Air Temperature | Unit | Warning | Non-Latching | No Valid Input from BAS or Unit. The mechanical cooling, heating and economizer control will be disabled; however, the supply fan will continue to run. |
Remote | |
| Invalid Active Occupancy Input | Unit | Warning | Non-Latching | The input to the Hex IO module has failed. The unit will fall back to the “Occupancy Input Default” setting on the front panel. |
Remote | |
| Invalid Active Outdoor Airflow | Unit | Warning | Non-Latching | No Valid Input from BAS or Unit. Disables Traq airflow control. |
Remote | |
| Invalid Active Space CO2 | Unit | Warning | Non-Latching | No Valid Input from BAS or Unit. Disables DCV control. |
Remote | |
| Invalid Active Space Pressure | Unit | Warning | Non-Latching | No Valid Input from BAS or Unit. Statitrac control will be terminated and the Relief Fan Speed and Relief Damper command will fall back to OA Damper Tracking. |
Remote | |
| Loss of Charge Detected CktX where X is “1” or “2” | Circuit | Warning | Non-Latching | Loss of Charge is detected on circuit X, severe enough to warn a technician, but not severe enough to shut down the circuit. No unit response. |
Remote | |
|
Loss of Charge Lockout CktX where X is “1” or “2” |
Circuit | Immediate Shutdown | Latching | Loss of Charge is detected on circuit X severe enough to shut down the circuit. Circuit X is inhibited. |
Local | |
| Low Air Temperature Freezestat - Manual | Unit | Immediate Shutdown | Latching | Freezestat input is closed and (OA Temp <= 50f || OA Temp Invalid) Command Valve to 100% Hydronic Heat only. |
Remote | |
| Low Air Temperature Freezestat - Auto | Unit | Warning | Non-Latching | Freezestat input is closed and OA Temp > 50°F Hydronic Heat only. |
Remote | |
| Low Suction Pressure CktX where X is “1” or “2” | Circuit | Immediate Shutdown | Latching | The suction pressure dropped below a pressure threshold as described below: 1) When the circuit is not running, or for Reduced Threshold Time seconds immediately after the circuit starts running, the trip point will be the configured Low Compressor Suction Pressure Cutout Startup setting. 2) While running, beyond the Reduced Threshold Time, the trip point will be the configured Low Compressor Suction Pressure Cutout Normal setting. Contact Trane Technical Support for further information. Circuit X is inhibited. |
Local | |
| Multiple circuit units will display: Mixed Air Temperature Sensor EvapX where X is “A” or “B” Single circuit units will display: Mixed Air Temperature Sensor EvapA |
DX Cooling | Normal Shutdown* | Latching | Mixed Air Temperature sensor has failed out of range. Failure of sensor X with the other sensor available: Generate “Mixed Air Temperature Sensor EvapX” diagnostic and DX operation is inhibited *Energy Wheel diagnostic behavior will change to a warning. Failure of sensor X with the other sensor not available: • All compressors on all available circuits are inhibited. • Units with Energy Wheel will use discharge air temperature. • Units with Rapid Restart installed, Economizer Mixed Air Low Limit is inhibited. |
Remote | |
| Morning Warmup Mode Exceeded 120 Minutes | Unit | Warning | Non-Latching | The unit has been operating in “Morning Warmup” for 120 minutes. This is an occupied mode that stops ventilation. If Morning Warmup command is removed after the diagnostic has been activated it will be cleared. |
Remote | |
| MP: Invalid Configuration | N/A | N/A | Latching | The Symbio800 controller has an invalid configuration based on the current software installed. The Symbio800 controller is invalid, contact service support. |
Remote | |
| MP: Reset Has Occurred | Platform | Warning | Non-Latching | The Symbio800 controller has successfully recovered from a reset and built its application. A reset may have been due to a power up, installing new software or configuration. This diagnostic is immediately and automatically cleared and thus can only be seen in the Historic Diagnostic List in Tracer TU. Normal operation after re-boot. Access Historic Alarms page on the Front Panel for date and time stamp. |
Remote | |
| Outdoor Air Bypass Damper Input | Energy Wheel | Warning | Non-Latching | The Outdoor Air Bypass Damper Input has failed out of range for 5 continuous seconds. This voltage is an indication of actual damper position. | Remote | |
| Outdoor Air Bypass Dmpr Failed Closed | Energy Wheel | Warning | Non-Latching | The outdoor air bypass damper position has been lower than the damper command by 10% for 5 continuous minutes. | Remote | |
| Outdoor Air Bypass Dmpr Failed Open | Energy Wheel | Warning | Non-Latching | The outdoor air bypass damper position has been greater than the damper command by 10% for 5 continuous minutes. | Remote | |
| Outdoor Air Damper Closed | Unit | Immediate Shutdown | Latching | Units configured for 100% OA with no return air. OA Damper reports less than 35% open and the supply fan is proven on. Or The supply fan is energized but not proven on and the OA Damper reports less than 34%. Diagnostic will inhibit manual control of supply fan. |
Local | |
| Outdoor Air Damper Input | Unit | The Outdoor Air Damper Voltage Input has failed out of range for 5 continuous seconds. This voltage is an indication of actual damper position. | ||||
| Warning | Non-Latching | Units not configured for ERW or Ultra Low Leak Dampers (Title 24) [Economizer cooling is terminated and the Outdoor Air Damper is commanded closed.] |
Remote | |||
| Immediate Shutdown | Latching | Units configured for ERW or Ultra Low Leak Dampers (Title 24), or Units configured for 100% OA with no return air. [Diagnostic will inhibit manual control of supply fan] |
Local | |||
| Outdoor Air Damper Not Modulating | Unit | Warning | Non-Latching | Units NOT configured for Energy Recovery Wheel or Ultra Low Leak Dampers. The unit is in any mode that is not active economizer cooling and the OAD position has been lower than the minimum ventilation command by 10% for 5 continuous minutes. Cooling without Economizer Enabled. |
Remote | |
| Immediate Shutdown | Latching | Units configured for Energy Recovery Wheel or Ultra Low Leak Dampers. The unit is in any mode that is not active economizer cooling, and the Outdoor Air Damper position has been lower than the minimum ventilation command by 10% for 5 continuous minutes. Or The Outdoor Air Damper position is < 30% while the Return Air Damper position is > 70%. (In this case the damper command is at a value > to the Return Air Damper position.) |
Local | |||
| Immediate Shutdown | Latching | Units Configured for 100% OA with no return air. The Outdoor Air Damper position has been lower than the minimum ventilation command by 10% for 5 continuous minutes. Diagnostic will inhibit manual control of supply fan. |
Local | |||
| Outdoor Air Enthalpy Active is Invalid | Unit | Warning | Non-Latching | Loss of outdoor air enthalpy implies either Outdoor Air Temperature or Outdoor Air Humidity is invalid. This drives a ‘fall back’ response to Dry Bulb Economizer and Energy Wheel decisions if Outdoor Air Temperature Active is available, otherwise Economizer cooling and Energy Wheel are disabled. |
Remote | |
| Outdoor Air Humidity Sensor | Unit | Warning | Non-Latching | The Outdoor Air Humidity sensor has failed out of range. No action is taken for this sensor failure only the Outdoor Air Humidity Sensor Active has special action. |
Remote | |
| Outdoor Air Humidity Sensor Active | Unit | Warning | Non-Latching | The Active Outdoor Air Humidity sensor has failed out of range. This drives a ‘fall back’ response to Dry Bulb Economizer and Energy Wheel decisions if Outdoor Air Temperature is available, otherwise Economizer cooling is disabled. Dehumidification will be disabled. |
Local | |
| Outdoor Air Temperature Sensor | DX Cooling | Warning | Non-Latching | The Outdoor Temperature sensor has failed out of range. No action is taken for this sensor failure only the Outdoor Air Temp Active is Invalid has special action. |
Remote | |
| Outdoor Air Temp Active is Invalid | DX Cooling | Normal Shutdown | Non-Latching | All sources for Outdoor Air Temperature are invalid. Economizer cooling is terminated. |
Remote | |
| Outdoor Airflow Pressure Sensor | Unit | Warning | Latching | The Outdoor Airflow Pressure sensor has failed out of range. Traq function is disabled. Ventilation falls back to Outdoor Airflow Compensation or Minimum Ventilation Setpoint. |
Remote | |
| Outdoor Airflow Pressure Sensor 2 | Unit | Warning | Non-Latching | The Outdoor Airflow Pressure sensor has failed out of range. | Remote | |
| Pre Evap Filter Diff Press Setpoint Exceeded | Unit | Warning | Latching | When feedback value is greater than the setpoint. | Remote | |
| Pre Evaporator Filter Pressure Sensor | Unit | Warning | Non-Latching | The Pre Evaporator Filter Pressure sensor has failed out of range. Note: The Hex IO cannot detect when the ground wire for the sensor goes open circuit. No unit response. |
Remote | |
| Precool Mode Exceeded 120 Minutes | Unit | Warning | Non-Latching | The unit has been operating in “Pre Cool” for 120 minutes. This is an occupied mode that stops ventilation. If Pre Cool command is removed after the diagnostic has been activated it will be cleared. |
Remote | |
| Refrigerant Concentration Sensor X Where X is “A”, “B”, “C” or “D” |
DX System | Immediate Shutdown | Non-Latching | Refrigerant concentration detected above the lower flammability limit default setpoint defined in the leak detection device. Note: Heating is allowed, and the supply fan must be proven on. |
Local | |
| Refrigerant Leak Sensor Failure Sensor X Where X is “A”, “B”, “C” or “D” |
DX System | Immediate Shutdown | Non-Latching | Refrigerant sensor reports a fault (Fault Status is active): • Self Test Failed (end of life) • Temperature Out of Range • Humidity Out of Range • Refrigerant Measurement Out of Range • Sensor Open • Sensor Short |
Local | |
| Refrigerant Mitigation Action | DX System | Immediate Shutdown | Non-Latching | Mitigation becomes active when the refrigerant concentration alarm threshold is at or above the % LFL defined in the leak detection device and stays active when Symbio 800 is in a mitigation state for any reason. The alarm remains active for 5 minutes after the Leak Detection System input has reset. |
Local | |
| Relief Air Bypass Damper Input | Energy Wheel | Warning | Non-Latching | The Relief Air Bypass Damper Input has failed out of range for 5 continuous seconds. This voltage is an indication of actual damper position. | Remote | |
| Relief Air Bypass Dmpr Failed Closed | Energy Wheel | Warning | Non-Latching | The relief air bypass damper position has been lower than the damper command by 10% for 5 continuous minutes. | Remote | |
| Relief Air Bypass Dmpr Failed Open | Energy Wheel | Warning | Non-Latching | The relief air bypass damper position has been greater than the damper command by 10% for 5 continuous minutes. [Energy Wheel Preheat is disabled.] |
Remote | |
| Relief Air Damper Failed Closed | Unit | Warning | Non-Latching | The relief air damper position has been lower than the damper command by 10% for 5 continuous minutes. The relief fan remains on but its speed is limited to the value of the relief damper voltage input. |
Remote | |
| Relief Air Damper Failed Open | Unit | Warning | Non-Latching | The relief air damper position has been greater than the damper command by 10% for 5 continuous minutes. The relief fan remains on but its speed follows the lower commanded value, or if the command increases the speed is limited to no greater than the value of the relief damper voltage input. |
Remote | |
| Relief Air Damper Input | Unit | Warning | Non-Latching | The Relief Air Damper Input has failed out of range for 5 continuous seconds. This voltage is an indication of actual damper position. Relief damper is closed and the relief fan is commanded off. Economizer cooling is terminated. |
Remote | |
| Relief Fan X Proving Failure where X is “1”, “2” or “3” |
Unit | Warning | Non-Latching | Relief Fan X is expected to be running, this diagnostic will be generated when a No Flow condition exists for 40 continuous seconds. Failure of fan X with other relief fans available: Generate “Relief Fan X Proving Failure” diagnostic and take no other action. Failure of fan X with other relief fans not-available: The relief damper will be closed, the relief fan will be commanded off, economizing will be disabled and the outside air damper will be driven to the active minimum position. |
Remote | |
| Relief Fan Bypass Enabled | Unit | Warning | Non-Latching | Ipak 1 and Ipak 2 units. This diagnostic is generated to notify BAS integrators as to the presence of Relief Fan VFD Bypass mode. | Local | |
| Relief Fan Bypass Interrupt Failure | Unit | Immediate Shutdown | Latching | Ipak 1 and Ipak 2 units. Any time the Relief Fan is not running in Bypass Mode, this diagnostic will be generated when a Flow condition exists for 40 continuous seconds. [Relief damper tracks Outdoor damper.] |
Local | |
| Relief Fan Bypass Proving Failure | Unit | Warning | Latching | Ipak 1 and Ipak 2 units. Any time the Relief Fan is expected to be running in Bypass Mode, this diagnostic will be generated when a No Flow condition exists for 40 continuous seconds. Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. |
Remote | |
| Return Air Damper Failed Closed | Unit | Immediate Shutdown | Latching | Units configured for ERW or Ultra Low Leak Dampers (Title 24) The unit is active with the supply fan off and the Return Air Damper position has been greater than the command by 10% for 5 continuous minutes. Or The RAD position is > 70% while the OAD position is < 30%. (In this case the damper command is at a value < to the OAD position.) |
Local | |
| Return Air Damper Failed Open | Unit | Immediate Shutdown | Latching | Units configured for ERW or Ultra Low Leak Dampers (Title 24) The unit is active with the supply fan off. and the Return Air Damper position has been less than the command by 10% for 5 continuous minutes. Or The RAD position is < 30% while the OAD position is > 70%. (In this case the damper command is at a value > to the OAD position.) |
Local | |
| Return Air Damper Input | Unit | Immediate Shutdown | Latching | Units configured for ERW or Ultra Low Leak Dampers (Title 24). The Return Air Damper Voltage Input has failed out of range for 5 continuous seconds. This voltage is an indication of actual damper position. |
Local | |
| Return Air High Temperature Detected | Unit | Immediate Shutdown | Latching | If the Return air temperature exceeds 135F then an Immediate Stop will be generated. This is intended to shut the unit down the unit if high duct temperatures exist. This Diagnostic is only available if the Return Air Temperature is operating normally. |
Local | |
| Return Air Humidity Sensor | Unit | Warning | Non-Latching | The Return Air Humidity sensor has failed out of range. This drives a ‘fall back’ response to Economizer enthalpy and Energy Wheel decision. |
Remote | |
| Return Air Iso Damper Input | Unit | Immediate Shutdown | Latching | The Return Air Isolation Damper Voltage Input has failed out of range for 5 continuous seconds. This voltage is an indication of actual damper position. | Remote | |
| Return Air Iso Damper Closed | Unit | Immediate Shutdown | Latching | During unit operation with supply fan on, the Return Air Isolation Damper position (voltage) indicates the damper is below the Isolation Damper Position Prove Setpt – 10%. | Remote | |
| Return Air Iso Damper Failed to Open | Unit | Immediate Shutdown | Latching | When commanded to open, the Return Air Isolation Damper position (voltage) has remained below the Isolation Damper Position Prove Setpt for 5 continuous minutes. | Remote | |
| Return Air Iso Damper Failed to Close | Unit | Warning | Non-Latching | When commanded to close, the Return Air Isolation Damper position (voltage) has remained more than 10% open for 5 continuous minutes. | Remote | |
| Return Air Temperature Sensor | Unit | Warning | Non-Latching | The Return Air Temperature sensor has failed out of range. Rapid Restart: Affects DX capacity operation and target capacity. Economizer capacity terminates on rapid start time (rather than return air temperature).This drives a ‘fall back’ response to Economizer enthalpy decision. Energy Wheel is disabled. |
Remote | |
| Return Fan Bypass Enabled | Unit | Warning | Non-Latching | This diagnostic is generated to notify BAS integrators as to the presence of Return Fan VFD Bypass mode. | Local | |
| Return Fan Bypass Interrupt Failure | Unit | Immediate Shutdown | Latching | Any time the Return Fan is not running in Bypass Mode, this diagnostic will be generated when a Flow condition exists for 40 continuous seconds. | Remote | |
| Return Fan Bypass Proving Failure | Unit | Immediate Shutdown | Latching | Any time the Return Fan is expected to be running in Bypass Mode, this diagnostic will be generated when a No Flow condition exists for 40 continuous seconds. | Remote | |
| Return Fan Proving Failure | Unit | Immediate Shutdown | Latching | Any time the Return Fan is expected to be running in Non Bypass Mode, this diagnostic will be generated when a No Flow condition exists for 40 continuous seconds. | Remote | |
| Return Plenum Pressure Assembly Failure | Unit | Immediate Shutdown | Latching | The supply fan is On and the return pressure has not changed by more than +/- 0.03 IWC, from the pressure sampled at supply fan start, for a period of 3 minutes. or The supply fan is On and the return pressure reports a value <-0.7iwc. with the return fan speed at 100% for 20 seconds or The supply fan is Off and the return pressure, reports a value <-0.7iwc. for 20 seconds Failure during active Manual Override, VOM or EOM operation: The active mode will be honored. The return fan speed, if On, will be reduced to minimum and electric and gas heating will be disabled. |
Local | |
| Return Plenum Static Press Limit Auto | Unit | Warning* | Non-Latching | The return plenum static pressure has exceeded 3.5iwc for more than 1 second for the 1st and 2nd occurrence. The shutdown counter will reset to zero if: • The return fan runs for 3 continuous minutes. • Unit transitions from Stop to Auto mode. • Unit transitions into or out of Occupied mode. Failure during active Manual Override, VOM or EOM: The active mode will be honored. The return fan speed, if On, will be reduced to minimum and electric and gas heating will be disabled. *Failure during active Normal Mode (Not Manual Override, VOM or EOM): Diagnostic behavior changes to Immediate Shutdown. The unit will shut down but will be allowed to restart once the pressure falls below 3.5iwc. |
Remote | |
| Return Plenum Static Press Limit Manual | Unit | Warning* | Latching | The return plenum static pressure has exceeded 3.5iwc for more than 1 second for the 3rd consecutive time without the return fan running for 3 continuous minutes. (If the fan runs for 3 continuous minutes the counter will be reset.) Failure during active Manual Override, VOM or EOM: The active mode will be honored. The return fan speed, if On, will be reduced to minimum and electric and gas heating will be disabled. *Failure during Normal Mode (Not Manual Override, VOM or EOM): Diagnostic behavior changes to Immediate Shutdown. Unit is shutdown. |
Remote | |
| Return Plenum Static Pressure Sensor | Unit | Warning* | Non-Latching | The Return Pressure Sensor is out of range. For all units, except Return Fan Bypass. • The return fan is overridden to minimum speed. • The supply fan remains in control • DX Cooling is allowed • Economizing is disabled • All Electric and Gas Heat is disabled Failure during active Manual Override, VOM or EOM operation: The active mode will be honored. The return fan speed, if On, will be reduced to minimum and electric and gas heating will be disabled. *Failure during Return Fan Bypass operation: Diagnostic behavior changes to Immediate Shutdown. The return fan will be commanded Off and all other components turned Off or Closed. |
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| Return Static Press Measurement Failure | Unit | Immediate Shutdown | Latching | Diagnostic triggers if the null voltage delta reported from the sensor while performing zero calibration is greater than the “Max Duct Static Press Calibration Limit” | Remote | |
| Software High Pressure Detection CktX where X is “1” or “2” | Circuit | Warning | Non-Latching | The discharge pressure, as measured discharge pressure sensor, has exceeded a percentage of the pressure limit in psia. This warning is generated to give additional information that could be used to determine why all compressors on the circuit shut down due to an Unexpected Compressor Shutdown diagnostic or why a Compressor Failed to Start diagnostic is generated. Even if the pressure has dropped below the percent of pressure limit, the historic diagnostics will still indicate that a high pressure was detected. |
Local | |
| Space CO2 Sensor | Unit | Warning | Non-Latching | Space CO2 sensor has failed out of range. DCV control will be inhibited. |
Remote | |
| Space Humidity Sensor | Unit | Warning | Non-Latching | The Space Humidity sensor has failed out of range. No action is taken for this sensor failure only the Outdoor Air Humidity Sensor Active has special action. |
Remote | |
| Space Humidity Sensor Active | Unit | Warning | Non-Latching | The Space Humidity sensor value not available. Dehumidification and humidification will be disabled. |
Remote | |
| Space Pressure Sensor | Unit | Warning | Non-Latching | Space Pressure sensor has failed out of range. Statitrac control will be terminated and the Relief Fan Speed and Relief Damper command will fall back to OA Damper Tracking. |
Remote | |
| Space Static Press Measurement Failure | Unit | Warning | Non-Latching | Diagnostic triggers if the null voltage delta reported from the sensor while performing zero calibration is greater than the “Max Space Static Press Calibration Limit” Statitrac control will be terminated and the Relief Fan Speed and Relief Damper command will fall back to OA Damper Tracking. |
Remote | |
| Space Temp Cooling Setpoint Input | Unit | Warning | Non-Latching | The input to the Hex IO module has failed. Cool Setpoint Wired failed with Heat Setpoint Wired available: The unit will calculate the cooling setpoint based on the heating setpoint and offset. Cool Setpoint Wired failed with Heat Setpoint Wired not available: The unit will fall back to the “Space Temp Cooling Setpoint Default” setting on the front panel. |
Remote | |
| Space Temp Heating Setpoint Input | Unit | Warning | Non-Latching | The input to the Hex IO module has failed. Heat Setpoint Wired failed with Cool Setpoint Wired available: The unit will calculate the heating setpoint based on the cooling setpoint and offset. Heat Setpoint Wired failed with Cool Setpoint Wired not available: The unit will fall back to the “Space Temp Heating Setpoint Default” setting on the front panel. |
Remote | |
| Space Temperature Invalid Active | Unit | VVZT/CVZT: Normal Shutdown VVDA/CVDA: Warning |
Non-Latching | There is no valid source for Space Temperature Sensor Active. All sources are unavailable. VVZT/CVZT: Unit Shutdown VVDA/CVDA: Unit continues to operate and disables the following functions: • All Unoccupied modes (heat, cool, DH), • Daytime Warmup, • Morning Warmup • Pre Cool • Dehumidification |
Local | |
| Space Temperature Sensor | Unit | Warning | Non-Latching | The Space Temperature sensor input is out of range. Multi-zone: If Space Temperature Active is invalid, all functions requiring space temperature will be inhibited. Single-zone: Unit operation will be inhibited. |
Remote | |
| Starts/Hours Modified - CprsrXY where X is “1” or “2” where Y is “A”, “B” or “C” |
Cprsr | Warning | Non-Latching | The circuit X compressor Y cumulative value of starts and or hours have been modified by a write override from TU. No unit response. |
Remote | |
| Suction Pressure Sensor CktX where X is “1” or “2” | Circuit | Immediate Shutdown | Latching | Circuit X Suction Pressure sensor has failed out of range. Circuit X operation is terminated. |
Remote | |
| Suction Temperature 1 CktX where X is “1” or “2” |
Circuit | Immediate Shutdown | Latching | The Suction Temperature sensor has failed out of range for circuit X. Circuit X operation is terminated. |
Remote | |
| Suction Temperature 2 CktX where X is “1” or “2” | Circuit | Immediate Shutdown | Latching | The Suction Temperature 2 sensor has failed out of range for circuit X. Circuit X operation is terminated. |
Remote | |
| Superheat High Limit Lockout CktX where X is “1” or “2” |
Circuit | Immediate Shutdown | Latching | High superheat is detected and severe enough to shut down the circuit. Circuit X operation is inhibited. |
Local | |
| Supply Fan Bypass Enabled | Unit | Warning | Non-Latching | This diagnostic is generated to notify system control integrators that the unit is operating in Supply Fan VFD Bypass mode. | Local | |
| Supply Fan Bypass Interrupt Failure | Unit | Immediate Shutdown | Latching | Any time the Supply Fans are not being commanded On in Bypass Mode and a Flow Proving condition from the Discharge Air Pressure sensor exists for 40 continuous seconds. Unit operation is inhibited. |
Remote | |
| Supply Fan Bypass Proving Failure | Unit | Immediate Shutdown | Latching | Any time the Supply Fans are being commanded On in Bypass Mode and a No-Flow Proving condition from the Discharge Air Pressure sensor exists for 40 continuous seconds. Unit operation is inhibited. |
Remote | |
| Supply Fan X Proving Failure where X is “1” or “2” | Unit | Warning* | Latching | Any time Supply Fan X is being commanded On in Bypass Mode and a No-Flow Proving indication from the fans VFD exists for 40 continuous seconds. Failure of fan X with other fan available: Generate “Supply Fan X Proving Failure” diagnostic and lockout all heating operation. *Failure of fan X with other fan not-available: Generate “Supply Fan X Proving Failure” and inhibit unit operation. Diagnostic behavior changes to Immediate Shutdown. |
Remote | |
| Unexpected Compressor Shutdown CprsrXY where X is “1” or “2” where Y is “A”, “B” or “C” |
Circuit | Immediate Shutdown | Latching | A non-command shutdown of the compressor occurred. The controller detected that the input was not proven. Sources for this condition are High Pressure Cutout switch opening, a fault from the compressor protection module, contactor failure or wiring. Circuit X operation is inhibited. |
Local | |
| Unit Economizing When It Should Not | Unit | Warning | Non-Latching | Units NOT configured for Energy Recovery Wheel or Ultra Low Leak Dampers (Title 24). The unit is in active economizer cooling. The economizer (OAD) command has been lower than the economizer position by 10% for 5 continuous minutes. Cooling with Economizer Enabled |
Remote | |
| Immediate Shutdown | Latching | Units configured for Energy Recovery Wheel or Ultra Low Leak Dampers (Title 24). The unit is in active economizer cooling. The economizer (OAD) command has been lower than the economizer position by 10% for 5 continuous minutes. Cooling with Economizer EnabledOr The Outdoor Air Damper position is > 70% while the Return Air Damer position is < 30%. (In this case the difference between the damper command and the Return Air Damper position is < the difference between the damper command and the Outdoor Air Damper position.) |
Local | |||
| Unit Not Economizing When It Should | Unit | Warning | Non-Latching | Units NOT configured for Energy Recovery Wheel or Ultra Low Leak Dampers (Title 24). The unit is in active economizer cooling. The economizer (OAD) command has been greater than the economizer position by 10% for 5 continuous minutes. Cooling with Economizer Enabled. |
Remote | |
| Immediate Shutdown | Latching | Units configured for Energy Recovery Wheel or Ultra Low Leak Dampers (Title 24). The unit is in active economizer cooling. The economizer (OAD) command has been greater than the economizer position by 10% for 5 continuous minutes. Cooling with Economizer Enabled. Or The Outdoor Air Damper position is < 30% while the Return Air Damper position is > 70%. (In this case the difference between the damper command and the Return Air Damper position is < the difference between the damper command and the Outdoor Air Damper position.) |
Local | |||
| Ventilation Override Mode A | Unit | Warning | Non-Latching | The unit is actively in a VOM A event with outputs commanded per the settings entered at the Front Panel. (Default setting: Unit Off) |
Local | |
| Ventilation Override Mode B | Unit | Warning | Non-Latching | The unit is actively in a VOM B event with outputs commanded per the settings entered at the Front Panel. (Default setting: Pressurize) |
Local | |
| Ventilation Override Mode C | Unit | Warning | Non-Latching | The unit is actively in a VOM C event with outputs commanded per the settings entered at the Front Panel. (Default setting: Relief) |
Local | |
| Ventilation Override Mode D | Unit | Warning | Non-Latching | The unit is actively in a VOM D event with outputs commanded per the settings entered at the Front Panel. (Default setting: Purge) |
Local | |
| Ventilation Override Mode E | Unit | Warning | Non-Latching | The unit is actively in a VOM E event with outputs commanded per the settings entered at the Front Panel. (Default setting: Purge w/ Duct Static Pressure Cntl) |
Local | |
| VFD Compressor Ground Fault– Cprsr1A | Circuit | Immediate Shutdown | Latching* | An earth ground fault has resulted in a discharge from the output phases to ground, either in the cable between the adjustable frequency drive and the motor or in the motor itself. Further compressor operation is not recommended until measurements to ground can be taken from the motor leads and the ground fault removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR200 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
Local | |
| VFD Compressor High Pressure Trip – Cprsr1A | Circuit | Immediate Shutdown | Latching* | The drive safe stop input was activated. This trip is the result of a high pressure cutout. The high pressure switch must reset once the pressure has dropped and a manual reset must be commanded at the user interface before the circuit will be allowed to restart. This diagnostic may require a power cycle to reset the TR200 drive (Safe Stop) alarm. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This diagnostic may require a power cycle to reset the TR200 drive (Safe Stop) alarm. |
Local | |
| VFD Compressor In Hand Mode – Cprsr1A | Unit | Warning | Non-Latching | The drive has been put into hand mode at the drive interface. This will cause issues for normal sequences and operation | Local | |
| VFD Compressor Short Circuit– Cprsr1A | Circuit | Immediate Shutdown | Latching* | A short circuit in the motor windings or the motor terminals was detected. Compressor operation is not recommended until the short circuit is removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR200 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
Local | |
| VFD Condenser Fan Ground Fault - CktX where X is “1” or “2” | Circuit | Warning | Latching* | The condenser fan VFD on circuitX indicates an earth ground fault has resulted in a discharge from the output phases to ground, either in the cable between the adjustable frequency drive and the motor or in the motor itself. Condenser fan control will revert to fixed-speed fan algorithm using remaining fans. Further operation of the failed fan is not recommended until measurements to ground can be taken from the motor leads and the ground fault removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR170 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
Local | |
| VFD Condenser Fan In Hand Mode – CktX where X is “1” or “2” | Unit | Warning | Non-Latching | The condenser fan VFD on circuitX has been put into hand mode at the drive interface. Should be for testing only as this will cause issues for normal sequences and operation. |
Local | |
| VFD Condenser Fan Motor Current Overload – CktX where X is “1” or “2” | Circuit | Warning | Latching* | The condenser fan VFD on circuitX indicates a peak current of approximately 200% of rated current was exceeded for 1.5 seconds. The remaining condenser fans on circuitX will revert to fixed-speed fan algorithm control. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR170 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
Local | |
| VFD Condenser Fan Short Circuit - CktX where X is “1” or “2” | Circuit | Warning | Latching* | The condenser fan VFD on circuitX indicates a short circuit in the motor windings or the motor terminals was detected. The remaining condenser fans on circuitX will revert to fixed-speed fan algorithm control. Note: Further operation of the failed fan is not recommended until the short circuit is removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR170 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
Local | |
| VFD Cprsr Current Overload – Cprsr1A | Circuit | Immediate Shutdown | Latching* | The inverter peak current of approximately 200% of rated current was exceeded for 1.5 seconds. This is a drive enforced lockout. Note: There is Drive behavior that results from a Drive Overcurrent where the drive continues to operate at reduced RPM. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR200 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
Local | |
| VFD Fault Compressor – Cprsr1A | Circuit | Immediate Shutdown | Non-Latching | VFD Fault. Numerous vfd faults can cause this general fault/vfd alarm. When the vfd trips on a general alarm, the alarm may be latching or non-latching depending on the vfd settings. This Symbio 800 diagnostic is auto-reset and will persist until the vfd clears the general alarm. |
Local | |
| VFD Fault Compressor – Cprsr1A | Circuit | Immediate Shutdown | Latching | A VFD Fault has occurred four times before the compressor starts and runs for its minimum on-time. Numerous vfd faults can cause this general fault/vfd alarm. A volatile fault count variable stores the count status. The count is cleared for any of the following three conditions: • Variable speed compressor starts and runs for its minimum on-time. • Diagnostic manual reset. • Controller power cycle. |
Local | |
| VFD Fault Condenser Fan - CktX where X is “1” or “2” | Circuit | Warning | Latching* | The condenser fan VFD on circuitX indicates a general VFD Fault. Numerous drive faults can cause this general fault. Reference the TR170 Installation and Operating manual for a list of fault codes and descriptions. Condenser fan control will revert to fixed-speed fan algorithm using remaining fans. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
Local | |
| VFD Fault Relief Fan – X where X is “1”, “2” or “3” | Unit | Warning | Latching* | Relief fan X indicates a general Fault. Numerous drive faults can cause this general fault. Reference the EBM-PAPST Installation and Operating manual for a list of fault codes and descriptions. (Clears on Reset) Failure of fan X with other fans available: No action. Failure of fan X with other fans not-available: Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
Local | |
| VFD Fault Return Fan | Unit | Immediate Shutdown | Latching* | Numerous drive faults can cause this general fault. Reference the TR150 Installation and Operating manual for a list of fault codes and descriptions. *The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
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| VFD Fault Supply Fan – X where X is “1” or “2” | Unit | Warning* | Latching* | Supply fan X VFD indicates a general Fault. Numerous drive faults can cause this general fault. Reference the TR150 Installation and Operating manual for a list of fault codes and descriptions. Failure of fan X with the other fan available: Generate a “Supply Fan X Proving Failure” on the failed fan, allow the working fan to continue and lock-out all heating operation. *Failure of fan X with the other fan not-available: Generate a “Supply Fan X Proving Failure” on the failed fan and shutdown the unit. Diagnostic changes behavior to Immediate Shutdown. *The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
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| VFD Relief Fan Ground Fault | Unit | Warning | Latching* | Ipak 1 or Ipak 2 units. VFD earth ground fault has resulted in a discharge from the output phases to ground, either in the cable between the adjustable frequency drive and the motor or in the motor itself. Further fan operation is not recommended until measurements to ground can be taken from the motor leads and the ground fault removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset, this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. |
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| VFD Relief Fan In Hand Mode | Unit | Warning | Non-Latchin | Ipak 1 or Ipak 2 units. VFD drive has been put into hand mode at the drive interface. This will cause issues for normal startup and running. Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. |
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| VFD Relief Fan Locked Motor – X where X is “1”, “2” or “3” | Unit | Warning | Latching* | Ipak 3 only. Relief fan X indicates something has blocked the rotor from turning. Ice is a common one in some applications. (Motor Auto Reset) Failure of fan X with other fans available: No action. Failure of fan X with the other fans not-available: Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
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| VFD Relief Fan Motor Current Overload | Unit | Warning | Latching* | Ipak 1 or Ipak 2 units. VFD inverter peak current of approximately 200% of rated current was exceeded for 1.5 seconds. This is a drive enforced lockout. *The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset, this diagnostic will be cleared in the Symbio 800 controller be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. |
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| VFD Relief Fan Motor Overheated – X where X is “1”, “2” or “3” | Unit | Warning | Latching* | Ipak 3 only. Relief fan X indicates motor thermocouples have reached a too-high temperature. Typically caused by excessively high ambient temp. (Motor Manual Reset) Failure of fan X with other fans available: No action. Failure of fan X with the other fans not-available: Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
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| VFD Relief Fan Power Mod Overheated – X where X is “1”, “2” or “3” | Unit | Warning | Latching* | Ipak 3 only. Relief fan X indicates rectifier thermocouple has reached a too-high temperature. Typically caused by excessively high ambient temp. (Motor Manual Reset) Failure of fan X with other fans available: No action. Failure of fan X with the other fans not-available: Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
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| VFD Relief Fan Short Circuit | Unit | Warning | Latching* | Ipak 1 or Ipak 2 units. VFD short circuit in the motor windings or the motor terminals was detected. Fan operation is not recommended until the short circuit is removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset, this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. |
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| VFD Relief Fan Speed Parameter Failure – X where X is “1”, “2” or “3” | Unit | Warning | Latching* | Ipak 3 only. Relief fan X indicates its Maximum Speed parameter does not match the Maximum Permissible Speed parameter. (EC-Clone Required) Failure of fan X with other fans available: No action. Failure of fan X with the other fans not-available: Relief damper is closed, relief fan commanded off and the Economizing will be disable and the outside air damper will be driven to the active minimum position. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. |
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| VFD Return Fan Ground Fault | Unit | Immediate Shutdown | Latching | An earth ground fault has resulted in a discharge from the output phases to ground, either in the cable between the adjustable frequency drive and the motor or in the motor itself. Further fan operation is not recommended until measurements to ground can be taken from the motor leads and the ground fault removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
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| VFD Return Fan In Hand Mode | Unit | Warning | Non-Latching | The drive has been put into hand mode at the drive interface. This will cause issues for normal startup and running. | Local | |
| VFD Return Fan Motor Current Overload | Unit | Immediate Shutdown | Latching* | VFD indicates peak current of approximately 200% of rated current was exceeded for 1.5 seconds. This is a drive enforced lockout. Generate the diagnostic on the failed fan and shutdown the unit. *The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
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| VFD Return Fan Short Circuit | Unit | Immediate Shutdown | Latching | A short circuit in the motor windings or the motor terminals was detected. Fan operation is not recommended until the short circuit is removed. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
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| VFD Supply Fan Ground Fault – X where X is “1” or “2” | Unit | Warning* | Latching* | Supply fan X VFD indicates an earth ground fault has resulted in a discharge from the output phases to ground, either in the cable between the adjustable frequency drive and the motor or in the motor itself. Further fan operation is not recommended until measurements to ground can be taken from the motor leads and the ground fault removed. Failure of fan X with the other fan available: Generate a “Supply Fan X Proving Failure” diagnostic on the failed fan, allow the working fan to continue and lock-out all heating operation. *Failure of fan X with the other fan not-available: Generate a “Supply Fan X Proving Failure” diagnostic on the failed fan and shutdown the unit. Diagnostic behavior changes to Immediate Shutdown. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
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| VFD Supply Fan In Hand Mode – X where X is “1” or “2” | Unit | Warning | Non-Latching | Supply fan X VFD has been put into hand mode at the drive interface. This should be for testing only as this will cause issues for normal startup and running |
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| VFD Supply Fan Motor Current Overload – X where X is “1” or “2” | Unit | Warning* | Latching* | Supply fan X VFD indicates peak current of approximately 200% of rated current was exceeded for 1.5 seconds. This is a drive enforced lockout. Failure of fan X with the other fan available: Generate a “Supply Fan X Proving Failure” diagnostic on the failed fan, allow the working fan to continue and lock-out all heating operation. *Failure of fan X with the other fan not-available: Generate a “Supply Fan X Proving Failure” diagnostic on the failed fan and shutdown the unit. Diagnostic behavior changes to Immediate Shutdown. *The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
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| VFD Supply Fan Short Circuit – X where X is “1” or “2” | Unit | Warning* | Latching* | Supply fan X VFD indicates a short circuit in the motor windings or the motor terminals was detected. Fan operation is not recommended until the short circuit is removed. Failure of fan X with the other fan available: Generate a “Supply Fan X Proving Failure” diagnostic on the failed fan, allow the working fan to continue and lock-out all heating operation. *Failure of fan X with the other fan not-available: Generate a “Supply Fan X Proving Failure” diagnostic on the failed fan and shutdown the unit. Diagnostic behavior changes to Immediate Shutdown.* The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. This drive alarm may be Trip Locked at the TR150 drive. If the drive determines that the condition could cause damage to the drive, the drive protects itself by generating a Trip Lock that can only be cleared by cycling power. |
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| VFD Compressor Torque Limit Exceeded– Cprsr1A | Circuit | Immediate Shutdown | Latching* | Supply fan X VFD indicates motor torque is higher than expected. * The Latching behavior for this diagnostic is latched in the drive. When the drive diagnostics are reset this diagnostic will be cleared in the Symbio 800 controller by setting its persistence to Non-Latching. The behavior for this diagnostic is set to non-latching in the drive and will be cleared when the condition is no longer active. |
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