Table of Contents
Power Exhaust
Note:
Power exhaust is designed for downflow applications¹. For horizontal duct connections, the power exhaust may be mounted on the horizontal return duct. The installer is responsible for the installation. An economizer or motorized damper must be installed and functional before attempting to install the power exhaust. The power exhaust can be turned ON at infinite fresh air damper settings, depending on how the unit is configured.
(1 Downflow application only is possible for units with low leak economizers.)
To test the Power Exhaust in service test mode, choose Fan On/Econ Open. This mode will turn on the Power Exhaust Motor.
Used With
| Model Number: | Used With: |
| FIAPWRX301* | Precedent A cabinet (Digit 39 = A), 230V (Digit 7 = 3) |
| FIAPWRX302* | Precedent B and C cabinet (Digit 39 = B, C), 230V (Digit 7 = 3) |
| FIAPWRX303* | Precedent D cabinet (Digit 39 = D), 230V (Digit 7 = 3) |
| FIAPWRX401* | Precedent A cabinet (Digit 39 = A), 460V (Digit 7 = 4) |
| FIAPWRX402* | Precedent B and C cabinet (Digit 39 = B, C), 460V (Digit 7 = 4) |
| FIAPWRX403* | Precedent D cabinet (Digit 39 = D), 460V (Digit 7 = 4) |
| FIAPWRXW01* | Precedent A cabinet (Digit 39 = A), 575V (Digit 7 = W) |
| FIAPWRXW02* | Precedent B and C cabinet (Digit 39 = B, C), 575V (Digit 7 = W) |
| FIAPWRXW03* | Precedent D cabinet (Digit 39 = D), 575V (Digit 7 = W) |
Installation Instructions Manual
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Wiring
FIAPWRX*01/02*
FIAPWRX*03*
Configuration
Phone App
From the Home screen < Settings < View Configuration < Edit < Proceed and Space Pressure Control to Relief Fan Only
Using the Symbio 700 Onboard menu and keypad
- Press Home.
- Press the Down Arrow and select Utilities.
- Press the Check.
- Press the Down Arrow and select Unit Config.
- Press the Check.
- Press the Down Arrow and select Edit Unit Config.
- Press the Check.
- Press the Down Arrow and select Space Pressure Control.
- Press the Check.
- Press the Down Arrow and select Installed.
- Press the Check.
- Press the Down or Up Arrow to Save Config.
- Press the Check.
- Press the Down Arrow to change No to Yes.
- Press the Check.
- It will say Edit Unit Config Updating.
Possible Alarms
Relief Fan Output Status
- The relief fan output energizes when the outdoor air damper position is greater than or equal to the Relief Enable Position Setpoint Status. Relief Fan Output Status point will report On.
- The relief fan output de-energizes when the outdoor air damper is less than or equal to the Relief Enable Position Setpoint Status – 10 percent or when the outdoor air damper is closed. Relief Fan Output Status point will report Off.
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.