Procool AV-480T

Temperature controlled Variable Speed Silent Fan System

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  • Description
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The PROCOOL AV-480T is a temperature controlled, variable speed silent fan system.

Four 80mm Thermistor controlled fans speed up as heat increases and will slow down as heat decreases.

With a noise level of only 6-14 dBA (each fan) at top speed, the AV-480T is the quietest fan system available.
The low noise makes this system suitable for noise sensitive applications from home AV to professional studios.
And with airflow pushing at 14-32 CFM (each fan) this system can cool most cabinets.

AV-480T Includes:
  • 4 SXT80 Temp controlled fan
  • 4 Fan Grillls w/screws
  • Power supply

Quiet operation - 12-20 dBA
High Airflow - 56-128 CFM
Auto ON / OFF
3 Year Warranty

fan model SXT80 SXT80 wires

Procool SXT80 Fans...

Procool model SXT80 fans are temperature controlled automatic on/off with variable speed, ranging from 1200 RPM to 2400 RPM at full speed. SXT80 fans have a temp sensor that should be located on or near the heat source. The sensor tells the fan when to start and stop and how fast to run. When the sensor detects heat above 75-77°F the fan will start. As heat increases the fan speed will increase. The fan will reach full speed of 2400 RPM at about 104-107°F. The fan temp sensor can be moved closer to the heat source to optimize or fine tune fan operation. As temperature levels drop the fan will slow down. Once the temp falls below 75-77°F the fan will shut off. See the chart below for illustration.
Note that temp ratings have a +/- 3% variance.

Operation Chart

Temperature CHart

power supply

Power supply model # AV-PS4

Input: 100-240 VAC

Output: 12VDC

AC plug type: NEMA 1-15P

DC Cable: 36 inch with 4 3 pin molex fan plugs

Fans: 4
Air Pressure Chart
SXT80 Air Pressure Chart
Thermistor Speed Chart
SXT80 Speed Chart
Fan Size: 80mm x 80mm x 25mm
Fan Speed: 1200-2400 RPM
Air Flow per fan: 14-32 CFM
Air Flow combined: 56-128 CFM
Noise per fan: 6-14 dBA
Noise combined: 12-20 dBA
Bearings: FDB, fluid dynamic bearings
Fan Thermistor wire length: 24"
Controller Thermal Probe length: --
Power Supply: 100-240 VAC - 12 VDC
Power Supply Cable length: DC-36"
Power Supply Plug Type: NEMA 1-15P
Current draw per fan: 0.17A
Current draw combined: 0.68A
Power consumption per fan: 2.04w
Power consumption combined: 8.16w
Grills/Guards: Black Wire

Installation Instructions

Data sheet downloadFan Mounting Instructions.pdf

Care and Maintenance

To maintain optimal performance, keep the fans clean. Canned air works well. If the fans are used outdoors or in a dusty environment is recommended to clean the fan blades as needed to keep clean.

Blade Removal

For cleaning and maintenance, the blade prop can be removed.
Grasp the blade prop and pull straight out of the fan body. Inspect the shaft and lubricate if needed. Any oil will work; light grease works best. Clean blade as needed with a dry cloth. Soap and water can be used if needed, but should be thoroughly rinsed and dried before use. Reinstall the blade; when properly installed the blade will snap into place.


The fan will not start:

1. Check the power connections. The power supply has a green led indicator, it should be on. If it is not check the power source. If not lit or flashing, it would indicate power supply failure or no power source power.
2. Check that the fan plugs are all plugged in to the power supply.
3. Check the fan blades to make sure they are fully seated in the housing. Press on the center of the blade and push in. If it is not seated you can hear it snap into place.
4. Turn the fan blade by hand to see if they are stuck. They should be free moving. If this starts the fan it is likely the fans need maintenance.
5. When the fans are new and if the temp is below 70?F the thermistor probe may need to be warmed by hand slightly to get the fan to spin.

The fan is making noise:

1. Check for anything that could be rubbing against the fan blade.
2. Make sure the fan blades are clean. Dirty fan blades can make noise.
3. Check the blade prop shaft for lubrication. (See Blade Removal above)

If the above steps do not solve the problem, contact our friendly customer service for assistance.

Customer Reviews

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Reviewed By: Jimmy on May 23rd 2016

The best rack cooling fan I've ever owned.

Reviewed By: John on May 24th 2016

Keeps my rack cool and is absolutely silent.

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Frequently purchased with this item

Plug Adaptors

Converts NEMA 5-15R to IEC320 C14
Use to connect all Procool power supplies to C13 receptacle.
Length = 12 inches
Part No. PSA-C14

80mm fan grill

6" Fan power "Y" Splitter
Add additional fans

Price $4.95

Replacement Fan

Replacement 40mm and 80mm fans