Keit IRmadillo User manual

DOC0837
26 July 2022, 12:04
Compressed Air Dryer and
Filtration Unit
User Manual
www.keit.co.uk
[email protected]

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Table of Contents
1. Introduction....................................................................................................................3
1.1. How it works ...........................................................................................................3
1.2. Components –External ..........................................................................................4
1.3. Components –Internal............................................................................................6
2. Using the dryer ..............................................................................................................7
2.1. Starting the unit.......................................................................................................7
2.2. During regular use ..................................................................................................7
2.3. Stopping the unit.....................................................................................................7
2.4. Long-term storage...................................................................................................7
3. Maintenance..................................................................................................................8
3.1. Maintenance schedule............................................................................................8
4. Technical Specifications...............................................................................................10
5. List of Parts..................................................................................................................11
6. Warranty......................................................................................................................12
7. Appendix 1 –Circuit Diagram for 230V Version ...........................................................13
8. Appendix 2 –Circuit Diagram for 110V Version ...........................................................14

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1. INTRODUCTION
The Air Dryerand Filtration unit is designedto provide dry clean compressed air at a controlled
flow rate and pressure. The unit is intended to run on a compressed air source.
1.1. How it works
The Atlas Copco CD1+ adsorption dryer is a twin tower heatless regenerative desiccant dryer.
The general working principle of adsorption dryers is simple. Moist air flows over hygroscopic
material (typical materials are silica gel, molecular sieves, activated alumina) and is thereby
dried. The exchange of the water vapour in the moist compressed air into the hygroscopic
material or “desiccant” causes the hygroscopic medium to be gradually saturated with
adsorbed water.
The desiccant needs to be regenerated regularly to regain its drying capacity. Adsorption
dryers are typically built with two drying vessels for this reason. Only one tower is operational
at a time, while the other is regenerated.
The typical dew point that can be achieved at operational pressure is -40°C, which makes
these dryers suitable for providing very dry air for more critical applications.
The pre-filters are required to prevent contaminants in the air supply from damaging the
desiccant media, reducing efficiency and shortening the service life.

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1.2. Components –External
Figure 1: Cabinet Left Side and Front Exterior
1. Air inlet
Inlet pressure: 6-10 bar
Flow rate: ≤60 litres/minute
Fitting: ¼” NPT female
Minimum inlet air quality: ISO 8573-1 Class 5.-.4
2. Emergency stop button
3. Power switch
4. Inlet pressure gauge
5. Outlet pressure gauge
6. Locks
The cabinet must be locked to maintain its IP rating.
Figure 2: Cabinet Bottom Exterior
7. Mains power input
Input power: 230 VAC or 110 VAC
8. Oil and water drains
Do not obstruct the drains.
9. Muffler valves
The unit will vent at timed intervals during normal operation. Do not obstruct the muffler
valves.
800 mm
800 mm
300 mm
300 mm
7
8
9
1
2
3
4
5
6

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Figure 3: Cabinet Back Exterior and Right Side
10. Air outlet
¼” NPT female fitting.
11. Rear through holes for wall mounting
Ø 9 mm. Keit recommends wall-mounting the unit, but it may also be free-standing on
the provided feet.
800 mm
800 mm
860 mm
Keep clear - protruding parts
300
mm
11
10

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1.3. Components –Internal
Figure 4: Internal view
12. Mist separator AFD30
13. Shut-off valve
14. Filter (5m) with inlet pressure regulator AW30
The regulator is factory set to 7 bar. Do not adjust.
15. Coalescing filter DD10+ (rough filtering of oil aerosol & wet dust)
16. Coalescing filter PD3 (fine filtering of oil aerosol & wet dust)
17. Desiccant Dryer CD1+ (removal of moisture)
18. Activated carbon filter QD10+ (removal of oil vapour)
19. 24 V power supply (supplies item 13)
20. 110 V-230 V transformer (model-dependent)
21. Outlet flow regulator
22. Outlet pressure regulator
Factory set to 4 bar.
23. Frost protection
Factory-set thermostat. Do not adjust.
12
13
14
15
16
17
18
19
20
21
22
23

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2. USING THE DRYER
2.1. Starting the unit
1. Close the outlet flow control valve (10).
2. Connect the unit toa single-phase power supply (7) andto your compressed air supply
(1).
3. Check that air is not venting through the drain valve (8). If the initial pressure is too low
or if the pressure is increased too slowly, the spring valve on the mist separator will
not close, so air will be vented through the drain valve. If this is the case, block the
drain for a few seconds; this should allow the spring valve to close.
4. Turn the unit on using the front panel switch (3).
5. Ensure that the inlet pressure gauge (4) reads between 6 and 10 bar.
6. Leave the unit runningfor a minimum of three hours. This will ensure that the desiccant
has regenerated, and the air outlet is dry.
7. Open the outlet flow control valve (10). Do not connect your spectrometer to the outlet
valve at this point.
8. Set the outlet flow rate such that each spectrometer connected to the unit will receive
0.5 litres/min - 2 litres/minute, do this by opening the flow regulator (21). Take note of
the flow rate set.
9. Connect your spectrometer(s) to the outlet (10) using Ø4 mm tube.
10. Confirm that the outlet flow rate is consistent with the flow rate set in step 8. If not,
adjust the outlet flow control valve (21).
11. Close and lock the panel doors (6).
2.2. During regular use
The reservoirs on the mist separator (12) and 5m filter (14) will gradually fill up as water is
condensed out of the air. Periodically, check that the glass bulbs are not full. If the bulbs do
fill up, turn the unit off using the front panel switch(3) and disconnect or isolate your air supply
momentarily. This will open the spring valves on the mist separator and filter and allow the
water to drain through the drain valves (8).
The frequency with which the reservoirs need to be emptied will depend on the humidity of
your input air.
2.3. Stopping the unit
1. Turn off the unit using the front panel switch (3).
2. The compressed air in the unit will vent via the muffler valves on the base of the unit
(9).
2.4. Long-term storage
The unit may be stored for up to six months at a temperature of 0-30°C in a non-condensing
atmosphere. Keit recommends storing the unit in an indoor location. Maintenance should be
carried out as per the schedule (see section 3.1).

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3. MAINTENANCE
Regular maintenancemust only be carried out by a suitably qualified and experienced person.
Always turn off the unit by following the instructions in section 2.3 and isolate from power and
compressed air supplies before conducting any maintenance.
Contact your local Atlas Copco distributor or suppo[email protected] for replacement kits.
3.1. Maintenance schedule
Item
Frequency
Activity
Whole unit
Monthly
Visual inspection of:
•Mist separator and 5m filter bowls (12 & 14); empty if
required, see section 2.2
•General condition
•Pressure gauges read correct values
•Flow regulator set correctly
•No internal air or liquid leaks
•Internal cables in good condition
Atlas Copco
line filters
(15, 16, 18)
4000 hrs or 1
year
Replace filter elements:
Item 15: DD10+ filter kit PN 2901 3000 01
Item 16: PD3 filter fit PN 2902 0212 00
Item 18: QD10+ filter kit PN 2901 2005 44
SMC line
filters (12,
14)
4000 hrs or 1
year
Replace elements if discoloured or contaminated:
Item 12: AFD30 element PN AFD30P-060AS
Item 14: AW30 element PN AF30P-060S
Atlas Copco
CD1+ Dryer
(17)
6 Months
Inspect; check for damaged wiring or air leaks
6000 hrs or 1
year
Replace silencers
12,000 hrs or 2
years
Replace desiccant cartridges: Kit PN 2230 0040 11
Reset service counter
24,000 hrs or 4
years
Replace exhaust valve diaphragm and solenoid valves:
110V kit PN 2230 0040 14
230V kit PN 2230 0040 15
Replace shuttle valve (also called selector valve) o-rings: PN
2230 0040 27

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For instructions on how to replace individual components, please refer to the user manuals for
the individual components. The manufacturers’ part numbers for the components can be found
in section 5.

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4. TECHNICAL SPECIFICATIONS
Power Supply
Value
Voltage (Standard)
230 VAC
Voltage (Option)
110 VAC
Recommended Supply Type
Single phase, 13 A
Approximate Maximum Load
100 W
Recommended Fuse
5 A
Limits
Units
Min
Recommended
Max
Compressed air inlet pressure
Bar(g)
6
7
10
Ambient temperature
°C
-10
-
55
Inlet compressed air temperature
°C
1.5
35
60
Inlet compressed air humidity
%RH
0
-
100
Inlet compressed air flow
litres/min
-
-
60
Compressed Air Quality to ISO 8573-1
Particulate
Water
Oil
Inlet compressed air quality - minimum
requirement
5
-
4
Outlet compressed air quality
1
2
1
Other
Value
Dimensions
H800 x W800 x D300 mm
Panel IP rating (doors shut and locked)
IP 54

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5. LIST OF PARTS
DFU01 Parts List
Part No.
Atlas Copco Dryer CD1+ with PD3 (G1/4")
CD1320002
Atlas Copco Filter PD3 (G1/4")
PD3320002
Atlas Copco DD10+ (G1/2")
DD10295188
Atlas Copco CD1 Mount Bracket
CDBR261802
Atlas Copco QD10+ (1/2")
QD10295535
SMC Mist Separator G1/4"
SMAFD30
SMC 3/2 Valve G3/8" 24Vdc Modular
SMVP517Y
Flow Controller (1 l/min)
2510A4A40BVBN
Filter/Reg G1/4 (Auto drain) square gauge
SMAW30
Regulator G1/4"
SMAR20
Heater & Thermostat Control - 40W
1FT-TUHE-STAT
Electrical Enclosure H186 x W120 x D126 (230V Small)
EUMC18CD-230
Power Supply - 40v-24VDC 2.5A
OMPS230-24
Relay - 24CDC
RERN2-2012
Breaker -Europa B2 230V
EUBRB2-230
Breaker -Europa C6 230V
EUBRC6-230
Large Internal Enclosure (110/230V Transformer)
EUMC65C-110
Transformer 110V/230V 100W (100VA)*
110-230-BT58711
*Transformer is fitted to 110 V models only.

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6. WARRANTY
The warranty period is 12 months from the date of shipment.
Warranty is on a return to manufacturer basis although the major components are covered
globally by the respective manufacturers via local distributor networks.
Find your nearest distributor or service centre via the manufacturers’ websites:
Atlas Copco: https://www.atlascopco.com/en-uk/sys/in-your-country
SMC Pneumatics: https://www.smc.eu/en-gb/worldwide-addresses

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7. APPENDIX 1 –CIRCUIT DIAGRAM FOR 230V VERSION

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8. APPENDIX 2 –CIRCUIT DIAGRAM FOR 110V VERSION