Operation: Respond to Alarms
Displayed Alarm Message | Action Required |
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Env Temperature Low | • Verify that no supply air is fed directly back into the return air. |
| • Ensure that the alarm delay is not set too low. The delay should be long |
| enough to allow the room temperature to stabilize after |
| • Verify that the temperature alarm threshold for the environmental (return or |
| remote) sensors is below the cool and reheat setpoints. |
| • Verify that the Module is configured and equipped for the reheat mode. |
| • Ensure that the reheat mode is enabled (if your Module is equipped with |
| reheat). |
| • Ensure that the reheat mode is not disabled because of an active |
| input mapped to nonessential lockout. |
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|
Fire Detected | • Follow the appropriate facility emergency protocol. NOTE: The purpose of |
| the fire sensor is to warn you of possible equipment damage. It is NOT |
| intended to provide a fire alarm system to protect the facility and the lives of |
| its occupants. |
| • Confirm that the wiring connections are secured to the wiring harness. |
| • Verify the setting of the fire detector (fire stat). |
| • Replace the fire detector (fire stat). |
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|
Fluid Coil Actuator Fail | • Verify that the connections between the actuator and the controller board are |
| correct and securely tightened. |
| • Confirm that the control voltage and signal voltage reach the actuator. |
| • Ensure that the proper Module configuration is defined for this Module, |
| especially that the coil configuration and the actuator type are correct. |
| • Replace the Coil Fluid Actuator. |
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|
Group Configuration Invalid | • Check that the # Systems setting (Path: Main > Setup > Group > Group |
| Config) agrees with the actual number of Systems connected to the Group. |
| Increase this setting to match the number of connected Systems. |
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|
Group Configuration Conflict | • Verify the Group configuration settings (Path: Main > Setup > Group) are |
| correct. The Group detected one or more Systems in the Group to have |
| different Group configuration settings and changed that System’s settings. |
|
|
Group Fatal Fire Shutdown | • Check the Systems in this Group for fire alarms. The Group Fatal Fire |
| Shutdown occurs only when the Group Fire Alarm configuration setting |
| (Path: Main > Setup > Group Config > Grp Fire Alrm) is On. While the |
| fire alarm is active, the Group will remain shut down. |
|
|
Group Fatal Smoke Shutdown | • Check the Systems in this Group for smoke alarms. The Group Fatal Smoke |
| Shutdown occurs only when the Group Smoke Alarm configuration setting |
| (Path: Main > Setup > Group Config > Grp Smoke Alrm) is On. While |
| the smoke alarm is active, the Group will remain shut down. |
|
|
Heater Requires Maintenance | • Verify the operation of the heater and perform preventive maintenance. |
| • Reset the maintenance alarm on the display interface for the heater. |
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Humidifier Current High | • Verify that the proper voltage is applied to the humidifier cylinder. |
| • Confirm that the line voltage connections to the cylinder are secure and |
| correct. |
| • Ensure that the humidifier water supply has not been conditioned. |
| Conditioning can increase the water conductivity. |
| • Check the humidifier cylinder for mineral buildup that bridges the electrodes. |
| • Check the fill and drain valves for leaks. |
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42 | NetworkAIR IR Operation, Maintenance, and Troubleshooting |