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AboveAir IOMs
Introduction
Installation
Site Preparation & Mounting
Ductwork & Piping
Refrigerant Piping
Refrigerant Pipe Sizing
Electrical Connections
Auxiliary Device Installation
Operation
Refrigerant Charging
Start-up Procedures
Controller
Controller Navigation
System Menu
Technician Menu
Factory Menu
BMS Connections
Multi-Unit Sequencing
Sensors and Sequences
Maintenance
Troubleshooting
(current)
Support
Symptom: Air Proving Alarm
Possible Cause
: Unit Airflow is low.
Corrective Action
: Verify proper airflow. Refer to the low airflow section and resolve low airflow issues.
Possible Cause
: Air proving switch pressure setting is too high.
Corrective Action
: Refer to pressure switch cut sheet (
Air Proving/Dirty Filter Switch IOM
and adjust closing pressure.
Possible Cause
: Airflow alarm delay is too short.
Corrective Action
: Adjust damper delay and air proving delays at controller to allow for additional time prior to alarm.
Possible Cause
: No power on circuit or bad switch.
Corrective Action
: Troubleshoot circuit from load to switch to controller.
Possible Cause
: Variable Frequency Drive is in alarm.
Corrective Action
: Refer to VFD manual and troubleshoot error code displayed on VFD.
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