Kager COLDER User manual

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Operation Manual for „COLDER“, Ultra-Cold Air Generator
Connection Air TubeModel No. Working Air
Pressure Compressed-air Consumption Compressor Hp O. D. I. D.
140-55 SV 3 – 7 kg/cm³ 45 – 85 l/min. 0,5 – 1 hp 6 mm 4,0 mm or over
160-65 SV 3 – 7 kg/cm³ 115 – 220 l/min. 2 – 3 hp 6 mm 4,0 mm or over
185-65 SV 3 – 7 kg/cm³ 180 – 420 l/min. 3 – 5 hp 8 mm 5,5 mm or over
190-75 SV 3 – 7 kg/cm³ 300 – 750 l/min. 5 – 10 hp 8 mm 5,5 mm or over
How to install a COLDER
1. Connect a compressed-air line with a COLDER. Prepare a nylon or urethane tube of
O. D. 8 mm x I.D. 5,5 mm (or bigger) for 190-75 SV / 185-65 SV and a tube of O.D. 6
mm x I. D. 4 mm (or bigger) for 160-65 SV/140-55 SV. Fit one end of the tube to the
connector of the COLDER firmly so that it will not come off. Fit the other end to
ensure by pulling the tube that they are fully connected.
The most suitable tube length is 2 m (or less) for 190-75 SV/185-65 SV and 1 m (or
less) for 160-65 SV/140-55 SV. If it is longer, COLDER may not perform properly
because the pressure of compressed-air supplied drops. When an air tubing is
connected with a COLDER, care is to be taken that couplings to be used should have
an inside diameter for the compressed-air passage of 5,5 mm minimum for 190-75
SV/185-65 SV and 4 mm minimum for 160-65 SV/140-55 SV. For connection of a
compressor and a dryer/filter, a bigger inside diameter is recommended.
2. Be sure to install a filter-separator on a compressed-air supply line.
3. If a dryer is not installed on the compressed-air line, a measure to prevent freezing
should be taken (See preventive measures against freezing given on the second page).
4. Install a COLDER in such a way that distance between the discharging outlet of cold
air and an object to be cooled is 20 mm to 30 mm and that the object is directly
exposed to cold air. If the distance is bigger, cold air required will not be obtained
because warmer ambient air will mix with the discharged cold air and the temperature
of cold air will rise.
cTemperature Gage
Sensor Inserting
depth is about 50 mm
Cold Air Outlet
eCompressed Air
Tube Connector dLock Nut
Warm Air Exhaust
fControl Knobs
Clockwise ÅÆcounterclockwise
+ Cold Air Temperature –
Airflow Fraction
Cold
Warm
Eddy current
190-75 SV, 185-65 SV, 160-65 SV, 140-55 SV

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How to adjustments
cFit the sensor of temperature gauge (of a digital indication type) to the discharging
outlet of cold air referring to the above diagram.
dTurn the lock nut counter-clockwise and loosen it completely. Then turn the control
knob clockwise to the bottom dead center tightly.
eOpen the valve on the compressed-air line and let cold air flow into COLDER. At the
same time check if the pressure gauge indicator is within working air pressure range
given above.
fWhile checking the temperature of cold air, turn the control knob slowly counter-
clockwise and loosen it.
gTemperature of discharged air will go down slowly but after attaining the lowest
temperature, it will then go up. Stop turning the control knob in the position just before
the temperature goes up.
hWhen the control knob is set in the position as in g, a maximum cooling is obtained. If
you choose a maximum cooling effect rather than the lowest temperature, approximately
2 turns of the knob will do the job. But, the cold air temperature will be higher than the
lowest temperature in that case.
* When the pressure of supplied compressed-air changes, take cto hsteps again for
adjustment.
How to check a COLDER when it fails to produce cold air
•Is there any trouble with air tubing line?
1. Check whether there is a trouble in the compressed-air line.
1) Air does not have a sufficient pressure.
In this case, you cannot expect cold air because of lack of spouting air speed for
heat separation.
All models need air pressure of 3 kg/cm³ or more
2) The air tube is too small in inside diameter or too long.
In this case, air pressure will drop because of insufficient air flow.
Tubes to be installed are:
For 190-75 SV/185-65 SV: Inside diameter should be 5,5 mm or larger
(usually 8 x 6 mm) with length 2 m or shorter
For 160-65 SV/140-55 SV: Inside diameter should be 4,0 mm or larger
(usually 6 x 4 mm) with length 1 m or shorter
3) The inside diameter of tubing or couplings has become smaller.
For the above-mentioned reason, use tubing with ¼´´ or larger inside diameter. If
couplings are used on the air tubing line, ensure that orifice satisfies the following:
For 190-75 SV/185-65 SV: Minimum bore 6,0 mm
For 160-65 SV/140-55 SV: Minimum bore 4,0 mm
•Is not moisture in the air frozen?
If the temperature of discharged air is set blow (-) 10° C, moisture in compressed-air will
freeze in a COLDER and it will cause an intermittent discharge of cold air.

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•Is an air-dryer installed? (See the “A” and “B” blow.)
“A”
Cooling Dryer + Filter-Regulator Pressure Gauge
“B”
Desiccant Dryer + Regulator Pressure Gauge (A filter
included in COLDER)
Be sure to check if an air-dryer is installed on the air-tubing line and we recommend you to
use our desiccant type FILENCO DRYER/FILTER that will bring you ultra-low dew point. It
is easy to install and most economical.
•Is not dust, oil or any other stuff solidified inside your COLDER?
1) Do not fail to install a filter-separator on compressed-air line. If such stuff has clogged
up in the COLDER, purge it with air from discharging outlet of COLDER.
2) When oil or grease is solidified inside, it can be washed out.
Troubles.
A COLDER has no working parts, which should bring you no trouble under normal operation.
But, if it gives you any trouble due to manufacturing imperfection, please send it back to us
without disassembling it. We will not be responsible when it is disassembled.
KAGER GmbH
Industrieprodukte
Paul-Ehrlich-Str. 10 A – D-63128 Dietzenbach
Tel. ++49-(0)6074-40093-0 – Fax ++49-(0)6074-40093-99
E-mail: [email protected] – Internet: www.kager.de
Air tubing to be with specified diameter and length.
Air Compressor
COLDER
I. D. of tubing
for Models 190/185:
3/8´´ min.
For Models 1607140:
1/4´´ min.