Cold Jet i3 MICROCLEAN User manual

Original Instructions
1Safety Guidelines
General Safety Requirements
Electrostatic Discharge
CO2Safety
4Component Guide
Specifications
10 Unit Operation
Maintenance
Troubleshooting
18 Contacting Cold Jet
20 Appendix A
Blast Air Quality
22 Appendix B
Pellet/Nugget Shaving Kit
25 Appendix C
Residual Risks
28 Appendix D
Schematics
34 Symbol Glossary
36 Warranty
OPERATOR MANUAL
OM.MC.20160506

Copyright© 2014 Cold Jet, LLC
All rights reserved
Printed in the U.S.A
Due to continued product development, this information may change without notice. The
information and intellectual property contained herein is confidential between Cold Jet
and the client and remains the exclusive property of Cold Jet. If you find any problems in
the documentation, please report them to us in writing. Cold Jet does not warrant that
this document is error-free.
No part of this publication may be reproduced, stored in a retrieval system or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording or
otherwise without the prior written permission of Cold Jet.
This manual reflects the product configuration as was current at the time of initial
production. An item’s display in this catalog does not guarantee the item’s availability at
any time in the future. Images shown are for representative purposes only. Products may
vary from the images displayed. Cold Jet is not liable for typographical errors or changes
to specifications presented.

EC Declaration of Conformity
We as the manufacturer:
Cold Jet LLC
455 Wards Corner Road
Loveland, OH 45140 US
declare that the following product:
Product Designation: i³ MicroClean Model no.: 2A0169 Voltage: 120/230 VOLTS AC
complies with all relevant requirements of the directives listed below:
Directive 2006/42/EC [Machinery Directive]
Directive 2004/108/EC [EMC Directive]
References to the harmonized standards used:
EN ISO 12100:2010
EN 953:1997+A1:2009
EN 1088:1995+A2:2008
EN ISO 4414:2010
EN ISO 13732-3:2008
EN ISO 13849-1:2008/AC:2009
EN ISO 13857:2008
EN 60204-1:2006/AC:2010
Person in the European Community authorized to compile the technical documentation:
Cold Jet Europe bvba, Mr. Wim Eeckelaers, Dellestraat 55, B-3550 Heusden-Zolder,
Belgium
Place of Issue: Loveland, OH
Name: Mike E. Rivir
Position: V.P. – Engineering, Cold Jet LLC.

OM.MC.20160506
Dry ice cleaning is similar to sand blasting, plastic bead blasting or soda blasting
where a medium is accelerated in a pressurized air stream to impact a surface to
be cleaned or prepared.
However, instead of using hard abrasive media to grind on a surface (and
damage it), dry ice cleaning uses soft dry ice accelerated at supersonic speeds
to impact the surface and lift the undesirable item off the underlying substrate.
DRY ICE CLEANING:
• is a non-abrasive, nonflammable and nonconductive cleaning method
• is environmentally-responsible and contains no secondary
contaminants such as solvents or grit media
• is clean and approved for use in the food industry
• allows most items to be cleaned in place without time-consuming
disassembly
• can be used without damaging active electrical or mechanical parts
or creating fire hazards
• can be used to remove production residues, release agents,
contaminants, paints, oils and biofilms
• can be as gentle as dusting smoke damage from books or as
aggressive as removing weld slag from tooling
• can be used for many general cleaning applications
Cold Jet dry ice cleaning uses compressed air to accelerate frozen carbon
dioxide (CO2) “dry ice” pellets to a high velocity. Dry ice pellets can be made
on-site or supplied. Pellets are made from food grade carbon dioxide that has
been specifically approved by the FDA, the EPA and the USDA.
Carbon dioxide is a non-poisonous, liquefied gas, which is both inexpensive and
easily stored at work sites.
WHAT IS DRY ICE CLEANING?

SAFETY GUIDELINES

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The i3MicroClean is safe and easy to operate; however, certain precautions must
be followed during its use. To understand all the necessary precautions, you
must read the entire i3MicroClean manual before operating the unit.
The i3MicroClean should only be operated by authorized and trained personnel.
IN THIS SECTION
General Safety Requirements. . . . . . . 2
Electrostatic Discharge. . . . . . . . . . . 3
CO2Safety. . . . . . . . . . . . . . . . . . . 3
GENERAL SAFETY REQUIREMENTS
• Always follow the guidelines of the governing codes of your local/national
body as a minimum standard for ensuring safety
• Always wear thermal gloves, eye and ear protection (safety glasses and ear plugs)
• Never expose bare skin to CO2ice
• Never point the nozzle at self or anyone else and always exercise extreme
caution when people are in the blast area
• Never use a wire tie to hold the applicator trigger in the on position. This will
cause damage that will void the warranty
• Never use the blasting unit or hoses for anything other than the intended use
• Never operate in a confined space without an approved ventilation system
• Never operate the unit with guards removed
• Never mask the machine’s ventilation holes
• Never operate a damaged blasting unit
• Never exceed recommended hose or blasting unit pressure levels
• Do not kink the blast hose before, during or after operation
• Never disconnect the air supply hose without first shutting off the source air
and removing the line pressure
• Only Cold Jet trained service technicians are certified to work on electrical components
• Do not operate equipment with electrical parts exposed, jumpered or
rendered inoperable
• Only use dry ice as the cleaning media
• Always turn the application safety on before laying it down or passing it to someone
• Always turn the main power off and remove the applicator control cable before
removing the blast hose
• Always ensure that hoses are securely attached
• Keep hoses and power cord out of forklift traffic areas
• Check hoses and cables for nicks and gouge
SAFETY GUIDELINES

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ELECTROSTATIC DISCHARGE
Static discharge may ignite flammables.
Electrostatic discharge can be hazardous to the operator and the equipment.
The static charge of CO2varies with the amount of dry ice and humidity present.
Ground the Material Being Cleaned
Always ground the material being cleaned to assure safe operation while blasting.
1. Know your environment.
• Electrostatic buildup changes as humidity levels change and will vary by
location. Electrostatic discharge is higher at low humidity levels and
occurs most often during winter.
2. Attach static bond cable.
• To minimize electrostatic buildup between the part being cleaned and the
applicator, attach the static bond cable between the target surface and the
blast hose connection or to an electrically conductive supporting structure.
Use a conductivity tester for confirmation.
3. Plug into a grounded power outlet.
• This step is critical for electrostatic dissipation. If the ground is not connected,
a charge may build up on the unit or the applicator.
CO2SAFETY
• The i3MicroClean uses solid state carbon dioxide (CO2). CO2is nontoxic, non-
corrosive and nonconductive. It is approved by the FDA and USDA.
• Solid CO2is extremely cold (-109 °F/-78 °C). Always protect skin from direct
contact with CO2pellets, nuggets or slices. Direct contact with skin or eyes
quickly causes tissue damage.
• Vapor CO2can displace the oxygen from any breathing environment rapidly.
• Only operate the i3MicroClean with a proper ventilation system that maintains
the concentration levels of the governing codes of your local/national body.
• Always review and observe all safety guidelines when using materials that
displace oxygen.
• All operators and supervisors should familiarize themselves with the literature
on the physiological characteristics of CO2before using the i3MicroClean. The
information can be obtained from the governing codes of your local/national body.
• Always use a CO2monitoring device when using the i3MicroClean in a
confined space.
SAFETY GUIDELINES

COMPONENT GUIDE

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The single hose electric i3MicroClean features Cold Jet’s patented shaved dry ice
technology, providing unparalleled precision and reliability. This environmentally
responsible system enables you to safely clean delicate surfaces and complex cavities
and crevices that other machines can’t reach—without surface abrasion, disassembly
or harmful secondary waste.
IN THIS SECTION
Specifications. . . . . . . . . . . . . . . 5
Unit Operation. . . . . . . . . . . 11
Maintenance. . . . . . . . . . . 15
Troubleshooting. . . . . 16
SPECIFICATIONS
Weight (empty) 130lb (59kg)
Dimensions 22 x 16 x 21in (56 x 41 x 53cm)
Dry Ice Capacity
6 x 6 x12in (150 x 150 x 300mm) (24.5lbs./11kg)
5 x 5 x 12in (127 x 127 x 300mm)
with inserts (16.5 lbs. 7.5 kg.)
Variable Feed Rate 0 - 1.2 lbs/min (0-0.6 kg/min)
Power Consumption 100 - 140 VAC 1 Ø 60 Hz 300W (watts)
200 - 240 VAC 1 Ø 50 Hz 300W (watts)
Feeder Drive 1/4 Hp, 1.1 A, 230 VAC, 1, 750 RPM, AC Motor
Blast Pressure Range 20 - 140 psig (1.4 - 9.7 bar)
Supply Pressure Range 50 - 140 psig (3.4 - 9.7 bar)
Air Consumption
Range
12 – 50 scfm @ 100 psig (0.3 – 1.4 m3/min @ 6.9 bar)
Dependent on nozzle selection
A-Weighted Emission
Sound Pressure
Level Range
84 (distance of 10 ft.) – 97 dbA (distance of 2 ft.)*
* Nozzle 13865-259 @ 80 PSI blast pressure
Weight (empty) 130lb (59kg)
Dimensions 22 x 16 x 21in (56 x 41 x 53cm)
Dry Ice Capacity
6 x 6 x12in (150 x 150 x 300mm) (24.5lbs./11kg)
5 x 5 x 12in (127 x 127 x 300mm)
with inserts (16.5 lbs. 7.5 kg.)
Variable Feed Rate 0 - 1.2 lbs/min (0-0.6 kg/min)
Power Consumption 100 - 140 VAC 1 Ø 60 Hz 300W (watts)
200 - 240 VAC 1 Ø 50 Hz 300W (watts)
Feeder Drive 1/4 Hp, 1.1 A, 230 VAC, 1, 750 RPM, AC Motor
Blast Pressure Range 20 - 140 psig (1.4 - 9.7 bar)
Supply Pressure Range 50 - 140 psig (3.4 - 9.7 bar)
Air Consumption
Range
12 – 50 scfm @ 100 psig (0.3 – 1.4 m3/min @ 6.9 bar)
Dependent on nozzle selection
A-Weighted Emission
Sound Pressure
Level Range
84 (distance of 10 ft.) – 97 dbA (distance of 2 ft.)*
* Nozzle 13865-259 @ 80 PSI blast pressure
COMPONENT GUIDE

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i3MICROCLEAN RIGHT SIDE
1Applicator Hook 6Blast Pressure Gauge
2Safety Guard Lock 7Blast Pressure Regulator
3Chute Access Port 8Control Cable Connect
4Carrying Handle
(Two Person Lift) 9Blast Hose Connect
5Ventilation

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i3MICROCLEAN LEFT SIDE
1Ice Block Level Indicator 4Bleed Valve
2Data Plate 5Air Supply Hose Connect
3Fill Lid

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CONTROL PANEL
1Main Power Circuit Breaker 4Applicator Light Switch
2Power On / Reset 5Feed Rate Control
3Hour Meter 6Trigger Disable

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BLAST APPLICATOR
1LED Lights 4Hanger
2Nozzle Connector 5Mode Select Switch
3Trigger
Note: The blast applicator pictured includes an optional light.
Air Only
Off
Air + Ice

UNIT OPERATION

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START UP
Read all safety instructions before operation and follow them closely (p. 2-3)
Always wear proper personal protective equipment including eye protection
to guard against flying objects, ear protection to prevent hearing loss and
gloves to protect hands from exposure to cryogenic temperatures and sharp
blade surfaces.
Before loading dry ice, be sure the trough area is clear of excess moisture and debris.
The i3MicroClean may be placed on the cart. To increase stability of the unit,
lock the wheels on the cart.
Due to the high center of gravity, caution must be used when transporting
the unit on the cart.
Before starting the i3MicroClean, verify the following parameters:
• The air pipe is at least 0.5 inches (12 mm) in diameter
• The air pressure does not exceed 140 psig (9.7 bar)
• The air temperature does not exceed 122°F (50°C)
• The main power circuit breaker, bleed valve and applicator mode select switch
are in the OFF (O) position.
• The dry ice trough is dry, clean and free of debris.
To start the i3MicroClean:
If using the pellet & nugget shaving option, refer to Appendix B: Pellet &
Nugget Shaving (p.22)
1. Securely attach the blast hose and control cable to the i3MicroClean.
2. Securely attach the blast applicator to the blast hose and control cable.
3. Securely attach a nozzle to the blast applicator.
4. Securely attach the air supply hose to the i3MicroClean.
5. Move the bleed valve to the open (I) position to purge water out of the lines.
6. Move the bleed valve to the closed (O) position.
7. Securely attach the static bonding cable to the supplied blast hose collar or
to the target surface and an electrically conductive supporting structure.
8. Turn on the air compressor or open air supply valve and allow the air supply
hose to pressurize.
9. Plug the power cord into an electrical outlet.
• If an extension cord is necessary, it must comply with the power
requirements of the i3MicroClean and all governing electrical codes. The
i3MicroClean’s data plate indicates the operating voltage and amperage range.
10. Move the main power circuit breaker to the ON (I) position.
UNIT OPERATION

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11. Pull the blue trigger disable button out and press green power on/reset
button . Hold this button down until the green lights turns on.
12. Move the feed rate control to maximum.
13. Move the applicator mode select switch to the air + dry ice position (II).
14. Point the nozzle in a safe direction and squeeze the trigger to purge the system.
• The i3MicroClean must be purged before filling with dry ice.
15. Return the feed control to zero, then slowly increase the dial to the desired setting.
16. Move the applicator mode select switch to the OFF (O) position.
17. Move the pusher plate back to the end of the trough, away from shaver wheel.
18. Place dry ice into the trough, against the rotary knives.
19. Close the fill lid.
20. Press green power on/reset button . Hold this button down until the
green light turns on.
21. Move the applicator mode select switch to the air + dry ice position (II).
22. Squeeze the blast applicator trigger to blast.
BLAST CLEANING TECHNIQUE
Read all safety instructions before operation and follow them closely.
1. Always purge the system with air upon start-up, after breaks and before
loading dry ice. Following the proper start-up procedure will remove any water
ice and moisture build up in the system.
2. Position the blast hose for maximum maneuverability before blasting.
3. Do not kink the blast hose.
4. Hold nozzles perpendicular to the surface for fastest cleaning (recommended
for most applications).
5. Optimum standoff distance is 2 in (5 cm) for most nozzles.
6. Never allow foreign objects in the dry ice trough.
7. Do not abuse the blast hose, applicator or control cable.
8. To find the optimum feed rate, set the feeder speed to 0 and increase the rate
to achieve desired results.
9. Reduce the feed rate to avoid clogging the nozzle at pressures below 50 psi (3.4 bar).
UNIT OPERATION

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RE-LOADING DRY ICE
Always wear gloves to protect hands from exposure to cryogenic
temperatures and sharp blade surfaces.
1. Move the applicator mode select switch to the OFF (O) position.
2. Move the pusher plate back to the end of the trough away, from shaver wheel.
3. Remove excess dry ice and wipe out excess moisture.
4. Place dry ice into the trough, against the rotary knives.
5. Close the fill lid.
6. Press green reset power on/reset button . Hold this down until the green light
turns on.
7. Move the applicator mode select switch to the air + dry ice position (II).
8. Squeeze the blast applicator trigger to blast.
SHUT DOWN
Always wear gloves to protect hands from exposure to cryogenic
temperatures and sharp blade surfaces.
Always disconnect electric cables and hoses before transporting the unit.
To shut down the i3MicroClean:
1. Release trigger to stop blasting.
2. Move the blast applicator mode select switch to the OFF (O) position.
3. Push in the blue trigger disable button. Turn the main power circuit breaker to
the OFF (O) position to shut off the power.
4. Open the fill lid and remove remaining dry ice from the trough.
5. Close the fill lid.
6. Shut off the compressed air supply.
7. Open the bleed valve to evacuate all remaining pressure.
8. When the air hose is fully depressurized, disconnect all electric cables and hoses.
UNIT OPERATION

MAINTENANCE

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MAINTENANCE
DAILY
WEEKLY
MONTHLY
BIANNUAL
DAILY
WEEKLY
MONTHLY
BIANNUAL
Before removing the panel on the chain drive/feeder side of the machine,
unlock the safety guard lock.

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TROUBLESHOOTING
PROBLEM CHECK THIS SOLUTION
Machine will
NOT start
Machine
blasts air but
not dry ice
Machine will
NOT blast
PROBLEM CHECK THIS SOLUTION
Machine will
NOT start
Machine
blasts air but
not dry ice
Machine will
NOT blast