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pdf Adjustable Spot Cooler Installation and Maintenance Sheet

Adjustable Spot Cooler 

adjspcooler Adjustable Spot Cooler Cold air to -30°F (-34°C) from your
compressed air supply for spot cooling!

What is the Adjustable Spot Cooler?

Adjustable Spot Cooler is a low cost, reliable and maintenance free Spot Cooler system which utilizes a vortex tube to produce adjspcooler2 Adjustable Spot Cooler cold air. Adjustable Spot Cooler temperature can be adjusted using a knob at the hot end to set the temperature precisely to your requirements & application. The precise temperature setting ranges from approximately minus 30°F (-34°C) to room temperature and can be easily set with a thermometer.

Adjustable Spot Cooler comes with three generators for flow rate adjustment - 15 SCFM (425 SLPM), 25 SCFM (708 SLPM) and 30 SCFM (850 SLPM) providing refrigeration up to 2000 BTU/hr (504 Kcal/hr).The adjustable spot cooler comes with a factory installed 25 SCFM generator.

Cold air is directed using flexible tubing that holds its position. A magnetic base is standard for portability and easy mounting of the adjustable unit. Units are available with either a single point hose kit for small surface area or a dual point hose kit when heat is generated over a larger surface area.

adjspcooler3 Adjustable Spot Cooler adjspcooler4 Adjustable Spot Cooler

 

Why The Adjustable Spot Cooler?

EXAIR’S Adjustable spot cooler produces a wide range of airflow and temperature by adjusting the knob at the hot end and changing the various generators supplied. The generators control the air consumption and are easily interchangeable. The Adjustable Spot Cooler noise level is less than 75 dBA & is quite. Using an adjustable knob at the muffled "hot end", waste hot air exits the tube and controls the temperature drop at the "cold end".

It is ideally used for applications where the use of mist or liquid cooling is not suitable due to part contamination or cost. Air exits the cold end and is directed using adjustable flexible tubing to the point of use. The unit is portable using a magnetic base.

Applications

  • Adjusting thermostats
  • Cooling solder
  • Cooling machined plastics
  • Setting hot melts
  • Cooling welding horns
  • Cooling molded plastics
  • Electronic component cooling
  • Cooling gas samples
  • Cooling environmental chambers

Advantages

  • No moving parts
  • Low cost
  • Interchangeable generators
  • No electricity or chemicals
  • Instant cold air
  • Quiet - less than 75 dBA
  • Swivel magnetic base
  • Small, lightweight
  • Maintenance free

How the Adjustable Spot Cooler Works

adjspcoolerDim Adjustable Spot Cooler

The Adjustable Spot Cooler incorporates a vortex tube to convert an ordinary supply of compressed air into two low pressure streams, one hot and one cold. With the turn of a knob, the temperature control valve allows some hot air to flow through a muffling sleeve and out the hot air exhaust. The opposite end provides a cold airstream that is muffled and discharged through the flexible hose, which directs it to the point of use. The swivel magnetic base provides easy mounting and portability.


Dimensions

ascdim Adjustable Spot Cooler

Adjusting the Spot Cooler

The Adjustable Spot Cooler System can produce a full range of airflows and temperatures as determined by the knob setting and a small internal adjspcooler5 Adjustable Spot Cooler part called a generator. The generators control the SCFM (SLPM) of air consumption and are easily interchangeable.

The Adjustable Spot Cooler has a 25 SCFM (708 SLPM) generator installed that produces up to 1,700 Btu/hr. (429 Kcal/hr.). If less cooling is desired, the 15 SCFM (425 SLPM) generator which delivers 1,000 Btu/hr. (252 Kcal/hr.) can be installed. If more cooling is needed, the 30 SCFM (850 SLPM) generator can be installed for up to 2,000 Btu/hr. (504 Kcal/hr.).


adjspcooler6 Adjustable Spot Cooler Controlling the Cold Air

The Adjustable Spot Cooler gives instant cold air when filtered compressed air is supplied to it. Cycling on and off is a good way to save air. For on and off control, use a Model 9012 Manual Shutoff Valve. To turn the Adjustable Spot Cooler on with the machine, Model 9020 Solenoid Valve may be used and wired through the machine control switch. The EFC electronic flow control can also be used.




Adjustable Spot Cooler Specifications

Pressure Supply Air Consumption Sound Level
PSIG BAR SCFM SLPM dBA
100 6.9 15 425 72
100 6.9 *25 708 73
100 6.9 30 850 74
* 25 SCFM (708 SLPM) generator is factory installed

Testing Heat Tape Thermostats

The Problem: A manufacturer of electrical heat tapes had a problem testing thermostats for accuracy. The heat tape is supposed to switch on when the outdoor temperature dips below 40°F to prevent pipes from freezing or icefrom building up on a roof ’s edge. The liquid-tight thermostat of every tape had to be dipped into a bowl of ice water (thermometer checked at 36°F (2°C)) to make sure the indicator light came on and the tape got warm. Summertime heat caused the water to heat up so quickly that more time was spent regulating the water temperature than testing thermostats.

The Solution: The water bath was replaced with a Model 3825 Adjustable Spot Cooler. Once set to their desired temperature of 36°F (2°C), it provided a stable temperature all day long without adjustment. Drying each heat tape was no longer required and testing was over in seconds.
Comment: The Adjustable Spot Cooler paid for itself in no time as a result of the increased productivity. In this case, the company used the included 15 SCFM (425 SLPM) generator which minimized the compressed air use, costing only 23 cents per hour of continuous use! When testing thermostats, cooling machined plastics, setting hot melts or controlling tolerances, the Adjustable Spot Cooler is the best choice.

Adjustable Spot Cooler Models

Model #
Description
3725
Adjustable Spot Cooler only (25 SCFM)
3825
Adjustable Spot Cooler System includes Adjustable Spot Cooler, Automatic Drain Filter Separator, single point hose kit with cone and fan nozzle, swivel magnetic base and (2) additional generators.
3925
Adjustable Spot Cooler System includes Adjustable Spot Cooler, Automatic Drain Filter Separator, dual point hose kit with cone and fan nozzles, swivel magnetic base and (2) additional generators.
 

adjspcooler7 Adjustable Spot Cooler Model 3825 Adjustable Spot Cooler System

includes the Adjustable Spot Cooler, single point hose kit with cone and fan nozzle, swivel magnetic base,filter separator, 15 and 30 SCFM (425 and 850 SLPM) generators. (25 SCFM/708 SLPM generator installed.)

adjspcooler9 Adjustable Spot Cooler Model 3925 Adjustable Spot Cooler System

includes the Adjustable Spot Cooler, dual point hose kit with cone and fan nozzles, swivel magnetic base, filter separator, 15 and 30 SCFM (425 and 850 SLPM) generators. (25 SCFM/708 SLPM generator installed.)
(Adjustable Spot Cooler with dual point hose kit is recommended when heat is generated over a larger surface area.)

 

Accessories

adjspcooler10 Adjustable Spot Cooler

Click to watch the video (Vortex Tube)

Vortex Tubes and Spot Cooling