About the ATM Cool-stack I Exhaust
The ATM Cool-stack I system is a great way to keep your rack-mounted components cool. Mount this array high up in your rack, and place its heat sensor on your hardest-working component.
The thermostat activates the fans when the sensor reaches 90°. The quiet fans efficiently pull hot air up and out of the cabinet through its exhaust ports. Add a Cool-stack I Intake (available separately) for optimal airflow throughout your cabinet.
The Cool-stack I mounts in a standard audio rack, and comes with its own AC power adapter.
Product highlights:
- four 3-1/8" exhaust fans
- quiet, 19 dBA operation
- airflow: 40 CFM (cubic feet per minute)
- built-in heat sensor activates fans when rack temperature reaches 90°
- rack-mounted
- AC power adapter
- 19"W x 1-3/4"H x 9-3/4"D
- rack spaces: 1U
- warranty: 5 years
- Our 60-day money-back guarantee
- MFR # 00-301-03
What's in the box:
ATM Cool-stack I Exhaust owner's manual
- Fan module (exhaust)
- Thermal probe (attached 71" cable)
- AC Power supply with 6' cable (9VDC/1.3A output)
- Thermal probe mount with adhesive backing
- One 4" wire-tie
- Installation instructions
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More details on the ATM Cool-stack I Exhaust

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Features
Overview: The ATM Cool-stack I Exhaust fan system is designed to ventilate and cool small to mid-size equipment racks.
Fans: The Cool-stack I Exhaust features four 80mm (3.125" x 3.125") fans mounted in a 1U high metal enclosure with exhaust vent holes for each fan. The fan assembly should be mounted above the heat producing equipment, drawing hot air up and out through the front of the rack. It's capable of maintaining a 40 CFM (cubic feet per minute) air flow, while generating very little noise. For cooling larger racks, the Cool-stack I Exhaust can be used in conjunction with a Cool-stack I Intake (sold separately). The Intake model gets mounted low in the rack, feeding cool air up into it, while the Cool-stack I Exhaust gets mounted above the equipment, drawing hot air up and out of the rack. The fan assembly is powered using the included 6' AC power cable.
Thermo-sensing: An attached thermal probe is included for automatically activating the fan system when the temperature surpasses approximately 90˚F. The probe should be mounted on top of the hottest part of the equipment, and includes an adhesive mount for securing the sensor.
Constant Idle Operation: If desired, the Cool-stack I can run at a constant idle speed, increasing to full speed when the temperature at the thermal probe reaches 90˚F. If the thermal probe becomes disconnected, the fans will increase to full speed. Activating Constant Idle mode is done by removing the top cover and locating the 2-pin header labeled "IDLE JMPR". This shorting jumper comes mounted on Pin 1 and needs to be connected to both jumper pins.
Specifications:
- Overall Dimensions: Width = 19.0", Height = 1.75", Depth = 9.75" (incl. wiring)
- Fans: (4) 3.125" (80mm) x 3.125" (80mm)
- Air Flow: 40 CFM
- Noise Level: 19dBA
- Thermal Control: Approximately 90˚F.
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