10000 Woodward Avenue
Woodridge, Illinois 60517
+1 773-869-1776
+1 (773) 869-1329
United States
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Product Status Discontinued on 7/8/2022


The SRCOOL18K SmartRack 18,000 BTU 208/240V Portable Rack Air Conditioner cools, dehumidifies and filters the air in your server room, data center or other environment with heat-sensitive equipment. The compact, portable unit fits into just 4 square feet of floor space. It is designed for supplemental or backup cooling of IT equipment to prevent shutdowns, malfunctions and costly downtime caused by overheating or fluctuating temperatures.

The self-contained SRCOOL18K packs 18,000 BTU/h (5.275 kW) of cooling capacity into a rack-width chassis. A built-in evaporator expels condensation through a directional exhaust duct, eliminating the need for a floor drain or water collection tank. The SRCOOL18K also dehumidifies and filters the air, providing better air quality that can enhance equipment performance. Efficient close-coupled cooling reduces energy use and operating costs.

Installation is quick and easy and does not require disruptive construction or the costly expense of hiring a plumber or HVAC specialist. The SRCOOL18K rolls into place on durable built-in casters. The NEMA L6-20P plug connects to a standard 208/240V 20A outlet. The unit restarts automatically after power failures, and a built-in timer supports unattended shutdown and startup.

By installing the optional SRCOOLNET2LX network management card (sold separately), you can monitor temperatures, receive alerts, review logs, automate operation and control settings from anywhere via SNMP, web browser, SSH or telnet. The SRCOOLNET2LX includes the ENVIROSENSE remote sensor, which lets you monitor temperature and humidity up to 12-ft. (3.66 m) away from the SRCOOL18K.


Portable, High-Capacity Cooling Power
  • Produces 18,000 BTU/h (5.275 kW) of cooling capacity in a portable, rack-width chassis
  • Prevents equipment shutdowns, malfunctions and failures caused by overheating and temperature fluctuations
  • Filters and dehumidifies air to enhance equipment performance
  • Uses environmentally friendly R410A refrigerant, which complies with worldwide standards
  • Efficient close-coupled cooling reduces energy use and operating costs
Convenient Operation
  • Adjustable louvers support area cooling applications
  • Flexible output duct aims cold air where it's needed, such as an overheated rack enclosure or equipment hot spot
  • Supports unattended shutdown and startup, including automatic restarts after power failures
  • Easy-to-read control panel with digital display and diagnostic LEDs for local management
  • System-lock function disables all other buttons to prevent accidental input
Advanced Network Monitoring
  • Optional SRCOOLNET2LX accessory (sold separately) allows remote monitoring of temperatures, alerts, logs and control settings from anywhere via SNMP, web browser, SSH or telnet
  • SRCOOLNET2LX includes ENVIROSENSE remote sensor, which monitors temperature and humidity up to 12-ft. (3.66 m) away
Easy to Install
  • Rolls into place on built-in casters
  • Fits into 2 x 2-ft. (0.61 m) section of floor space
  • 6.5-ft. (1.98 m) power cord with NEMA L6-20P plug connects to standard 208/240V 20A AC outlet
  • No external condenser, refrigerant piping or professional maintenance required
  • Built-in evaporator expels condensation through exhaust tube—no floor drain or water collection tank needed
  • Exhaust kit removes hot air from room through drop ceiling, window or return duct
  • Includes all parts required for setup

Package Includes

  • SRCOOL18K SmartRack Portable Server Rack Cooling Unit - 18,000 BTU, 208/240V
  • (2) Gray exhaust ducts
  • Black cooling duct
  • (2) Exhaust duct adapters
  • (2) Adjustable exhaust panels
  • (4) Self-tapping screws
  • Cooling duct adapter
  • Louvered vent insert (preinstalled)
  • (2) Drainage plugs (preinstalled)
  • Owner’s manual
RoHS compliant


UPC Code037332188090
Electrical Consumption (Max)1985 Watts
Nominal Input Voltage(s) Supported208V AC; 240V AC
Input Connection TypeNEMA L6-20P
Input Plug FeaturesNEMA L6-20P
Input Frequency60 HZ
Input Cord Length (ft.)6.56
AirflowEvaporator = 634 CFM / Condenser = 640 CFM
Cooling TypeActive
Cooling Capacity (BTUs)18000
Cooling Capacity (kW)5.3
RefrigerantR410a (Environmentally friendly, Non ozone depleting)
Refrigerant Amount36.68 oz.
Equivalent Room Size35 sq. m (376.74 sq. ft.)
Front Panel LEDsTouch sensitive control panel with multiple LEDs and numerical temperature readout
Material of ConstructionSteel
Form Factors SupportedTower
Shipping Dimensions (hwd / in.)46.20 x 25.60 x 29.80
Shipping Weight (lbs.)205.00
Unit Dimensions (hwd / in.)38.200 x 20.500 x 21.700
Unit Weight (lbs.)175.37
Air Supply Tube Length71 inches
Air Exhaust Tube Length118 inches
Air Exhaust Tube Diameter5.16 inches
Compressor TypeRotary
Dehumidifier4.73 liters / hour
Sound Level (Noise)59dB
Amp Draw Nominal10.5A
Product CertificationsCSA (Canada); NOM (Mexico); UL 484
Product ComplianceRoHS
Product Warranty Period (Worldwide)1-year limited warranty

Questions & Answers

Yes. An exhaust removal tube is included and must be used to vent the hot air out of the room or closet through a window or ceiling duct work.
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For your convenience, the unit uses washable filters. Replacement filters are not sold separately.
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Between 50dB and 65dB.
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We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 773-869-1776 or email