
OPERATION
To regulate the
Frost Free Cold Air Gun
temperature, turn
the adjustment knob at the back of the Gun. Turning the
knob counterclockwise will reduce the temperature and
volume of the cold air stream. When operating the
Frost
Free Cold Air Gun
at compressed air pressures below 100
psig (6.9 Bar), it is possible to open this valve too far so that
there is no cold air ow. Turn the knob clockwise to increase
the cold air ow and temperature.
Maximum cooling capacity (not the coldest temperature)
occurs when there is a balance between cold air volume
and cold air temperature drop. In other words, there must
be an adequate volume of cold air at a reasonable cold
temperature to achieve the maximum cooling effect. In
normal operation, this will occur when the adjustment knob
is turned 1/4 to 3/8 open (counterclockwise) from the full
closed (clockwise) position.
MAINTENANCE
The
Frost Free Cold Air Gun
has no moving parts (other than
the adjustment knob), and requires only ltered compressed
air for proper operation. The
Frost Free Cold Air Gun
can be
disassembled for cleaning, if necessary, as shown above. If
the Gun has been disassembled for cleaning, the Cold Cap
must be reassembled tightly to ensure that the Generator
seats tightly against the body assembly. A loose Cold Cap
will reduce cooling capacity.
1. Do not operate the Frost Free Cold Air Gun at air
pressures above 150 psig (10.3 Bar).
2. Do not operate the Frost Free Cold Air Gun at line
temperatures above 110
o
F (43
o
C).
3. Avoid direct contact with compressed air.
4. Do not direct compressed air at any person.
5. When using compressed air, wear safety glasses
with side shields.
ADJUSTABLE COLD AIR GUN ASSEMBLY
LIMITED WARRANTY
Vortec compressed air products manufactured by ITW Air
Management will be replaced or repaired if found to be
defective due to manufacture defect within ten years from
the date of invoice.
Refer to our website www.vortec.com for full warranty
details and limitations. ITW Air Management makes no
specic warranty merchantability or warrant of tness to a
particular purpose.
Insufficient airow may be caused by the following:
1. Undersized compressed air line size.
2. Compressed air pressure too low.
3. Partial or complete blockage of internal compressed air
path, due to dirt. See Maintenance section for cleaning
instructions; and Compressed Air Supply section for lter
recommendations.
4. Insufficient compressed air volume.
5. Loose cold cap. This may occur if not tightened properly
after disassembled for cleaning.
If trouble persists, please contact Vortec at 1-800-441-7475.
TROUBLESHOOTING
The compressed air supply must be ltered to remove water
and dirt using a 5 micron or smaller lter. Failure to use a
lter may cause clogging (and freezing) of the compressed
air paths inside the Vortec product. Filter recommendations
are given in Table 1.
Filter elements must be changed on a regular basis.
Frequency of change is determined by the condition of
the compressed air supply. Filters should be installed in
the compressed air supply line as close as possible to the
Vortec product.
The appropriate size of compressed air supply line should
be selected to ensure optimal performance of the Vortec
product. Please refer to Table 2 to determine what supply
line size is recommended for your application. Contact
Vortec at 1-800-441-7475 for further assistance.
When the desired cold air stream temperature is less than
32oF (0oC), a compressed air dryer may be necessary to
prevent ice formation on the inside of the Vortec product.
COMPRESSED AIR SUPPLY
INSTALLATION
A
Frost Free Cold Air Gun
can be installed by directly
plumbing to the appropriately-sized hard piped compressed
air source that does not exceed 150 psig (10.3 Bar).
INTRODUCTION
A
Frost Free Cold Air Gun
is a device that converts ltered,
100 psig (6.9 Bar) compressed air into a cold airstream.
The
Frost Free Cold Air Gun
consumes 15-35 SCFM (425-
990 SLPM) of compressed air and is perfect for a wide range
of industrial spot cooling and dry machining applications.
(Drawings shown below are not to scale)
Model 611, 621 and 631
GENERAL SAFETY CONSIDERATIONS
WARNING: COMPRESSED AIR COULD CAUSE
DEATH, BLINDNESS OR INJURY
Frost Free
Nozzle Assembly
Threaded Cap
-219 size O-ring
Cold Air Mufer Assembly
-029 size O-ring
Cold End Cap
-116 size O-ring
Generator (see Table 1)
Main Body Assembly
Blue Encapsulation Sleeve
Adjustment
Knob
Inlet Fitting