Parker DME012-RX User manual

Medical Air Dryer
DME012-RX - DME080-RX
Original Language
User Guide
aerospace
climate control
electromechanical
filtration
fluid & gas handling
hydraulics
pneumatics
process control
sealing & shielding
EN

3
DME012-RX - DME080-RX
Contents
1. Safety Information 4
1.1 Markings and symbols 5
1.2 Hazardous Substances 5
2. Description 6
2.1 Technical Specification 6
2.1.1 Dimensions 8
2.2 Unpacking the equipment 9
2.3 Overview of the equipment 10
3. Installation & Commissioning 11
3.1 Locating the equipment 11
3.2 Mechanical Installation 12
3.3 Electrical Installation 12
3.3.1 Mains supply 12
3.3.2 Hygrometer relay 13
4. Operating the equipment 14
4.1 Overview of Controls 14
4.2 Starting the equipment 14
Dewpoint Dependent Switching (DDS) 14
4.3 Stopping the equipment 14
5. Servicing 15
5.1 Cleaning 15
5.2 Service Intervals 15
5.3 Service Kits 16
5.4 Service Record 17
6. Troubleshooting guide 18

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DME012-RX - DME080-RX
Important: Do not operate this equipment until the safety information and instructions in this user guide have been read and understood by all
personnel concerned.
Only competent personnel trained, qualified, and approved by domnick hunter should perform commissioning, service and repair
procedures.
Use of the equipment in a manner not specified within this user guide may impair safety and invalidate your warranty.
When handling, installing or operating this equipment, personnel must employ safe engineering practices and observe all related
regulations, health & safety procedures, and legal requirements for safety.
Ensure that the equipment is depressurised and electrically isolated, prior to carrying out any of the scheduled maintenance instructions specified
within this user guide.
Most accidents that occur during the operation and maintenance of machinery are the result of failure to observe basic safety rules and proce-
dures. Accidents can be avoided by recognising that any machinery is potentially hazardous.
domnick hunter can not anticipate every possible circumstance which may represent a potential hazard. The warnings in this manual cover the
most known potential hazards, but by definition can not be all-inclusive. If the user employs an operating procedure, item of equipment or a method
of working which is not specifically recommended by domnick hunter the user must ensure that the equipment will not be damaged or become
hazardous to persons or property.
Should you require an extended warranty, tailored service contracts or training on this equipment, or any other equipment within the
domnick hunter range, please contact your local domnick hunter office.
Details of your nearest domnick hunter sales office can be found at: www.domnickhunter.com
1. Safety Information

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DME012-RX - DME080-RX
1.1 Markings and symbols
The following markings and international symbols are used on the equipment and within this user guide:
Warning
Caution
Warning
Risk of electric shock.
Highlights actions or procedures which,
if not performed correctly, may lead to
personal injury or death.
Highlights actions or procedures which,
if not performed correctly, may lead to
damage to this equipment.
Highlights actions or procedures which,
if not performed correctly, could lead to
electric shock.
Wear ear protection.
When disposing of old parts always
follow local waste disposal regulations
Conformité Européenne
1.2 Hazardous Substances
The columns are filled with a powerful desiccant material which will dry out the atmosphere, eyes, nose, and mouth if exposed.
The columns should only be opened and the desiccant changed by domnick hunter trained, qualified and approved engineer.

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DME012-RX - DME080-RX
2. Description
domnick hunter desiccant dryers are designed to remove moisture vapour from compressed air.
The dryer comprises of an inlet and outlet manifold joined together by an aluminium column. The column has two internal chambers filled with
desiccant material. During operation one chamber is on-line (drying), whilst the opposite chamber is regenerating. This process is known as
Pressure Swing Adsorption (PSA).
Pressure Swing Adsorption (PSA)
A small percentage of dried air is taken from the dryer output flow and is used to regenerate the saturated chamber by expanding the dried air from
line pressure to atmospheric pressure. During this process, the moisture is physically removed from the regenerating chamber and vented to
atmosphere through the exhaust silencers.
Dewpoint Dependent Switching (DDS)
DDS will adjust the dryer’s cycle in line with the moisture loading placed upon it, by constantly monitoring the processed air moisture
content.

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DME012-RX - DME080-RX
Electrical
Parameter Units DME012-RX - DME040-RX DME050-RX - DME080-RX
Supply Voltage V ac 110V ac 50/60Hz ± 10%
Power W52 30
Fuse mA
500 (230v Supply)
1000 (110v Supply)
5 x 20mm time delay “T”
Environmental
Parameter Units DME012-RX - DME080-RX
Temperature oC
(oF)
2 – 45
35 - 113
Humidity -50% @ 40ºC
(80% MAX ≤ 31ºC)
IP Rating -IP65 / >NEMA 13
Pollution Degree - 2
Installation Category -II
Altitude m
(ft)
< 2000
(6562)
Noise dB(A) <75dBA
Before continuing with the installation and commissioning of this equipment:
Ensure that it is correctly sized for the inlet pressure, taking into consideration the pressure drop caused by the valves, pipes and
filters within the system. Allowance should be made for purge air loss. The dryer should be typically sized at 1 bar (14 psi) 0.1MPa
below nominal compressor output pressure.
The purge air flow is factory set for 6 bar g (87 psi g) minimum system pressure. Should the minimum supply pressure be lower
than this figure the purge air flow must be reset in order to maintain the specified dewpoint.
Ensure that it is correctly sized for inlet temperature to meet the dewpoint specified.
Ensure that the electrical supply voltage and frequency meet the requirements detailed within this specification and on the
equipment rating plate.
Caution
2.1 Technical Specification
This specification is valid when the equipment is located, installed, operated, and maintained as specified within this user guide.
Specific
Parameter Units DME012-RX - DME040-RX DME050-RX - DME080-RX
Minimum Inlet Pressure bar g
(psi g / MPa g)
4
(58 / 0.4)
Maximum Inlet Pressure bar g
(psi g / MPa g)
16
(232 / 1.6)
13
(188 / 1.3)
Inlet Temperature ºC
(ºF)
5 – 50
41 - 122
Inlet Connection NPT Inches 3/4” 1”
Outlet Connection NPT Inches 3/4” 1”

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DME012-RX - DME080-RX
2.1.1 Dimensions
D
E
A
110VAC
POWER
SUPPLY
HYGROMETER
DEWPOINT
RELAY
A
B
E
C
D
110VAC
POWER
SUPPLY
HYGROMETER
DEWPOINT
RELAY
BC
DME012-RX - DME040-RX DME050-RX - DME080-RX
Model
A
mm
(inches)
B
mm
(inches)
C
mm
(inches)
D
mm
(inches)
E
mm
(inches)
Weight
Kg
(lbs)
DME012-RX 837
(32.9)
302
(11.9)
284
(11.2)
794
(31.26)
352
(13.86)
32
(70)
DME015-RX 1003
(39.5)
302
(11.9)
284
(11.2)
960
(37.8)
352
(13.86)
37
(81)
DME020-RX 1168
(46.0)
302
(11.9)
284
(11.2)
1125
(44.29)
352
(13.86)
42
(92)
DME025-RX 1333
(52.5)
302
(11.9)
284
(11.2)
1290
(50.79)
352
(13.86)
47
(103)
DME030-RX 1499
(59.0)
302
(11.9)
284
(11.2)
1456
(57.32)
352
(13.86)
52
(114)
DME040-RX 1747
(68.8)
302
(11.9)
284
(11.2)
1704
(67.09)
352
(13.86)
60
(132)
DME050-RX 1433
(56.4)
566
(22.3)
220
(8.7)
1390
(54.72)
395
(15.55)
80
(176)
DME060-RX 1599
(62.9)
566
(22.3)
220
(8.7)
1556
(61.25)
395
(15.55)
90
(198)
DME080-RX 1847
(72.7)
566
(22.3)
220
(8.7)
1804
(71.02)
395
(15.55)
104
(229)

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DME012-RX - DME080-RX
2.2 Unpacking the equipment
It is recommended that the equipment is moved into position before removing the packaging.
Remove the equipment from its packaging using the illustrations shown below for guidance and check that it has not been damaged in
transit.
Description Qty
DME-RX Dryer 1
Dryer Test Certificate 1
If any items are missing or damaged please contact your local domnick hunter office.
The following items have been included with your equipment:

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DME012-RX - DME080-RX
2.3 Overview of the equipment
Referring to diagram below, the major parts of the dryer are as follows:
110VAC
POWER
SUPPLY
HYGROMETER
DEWPOINT
RELAY
110VAC
POWER
SUPPLY
HYGROMETER
DEWPOINT
RELAY
DME012-RX - DME040-RX DME050-RX - DME080-RX
A
A
B
B
ECO
ECO
A
A
B
B
ECO
ECO
3
4
3
4
36
4
12 12
5
5
1Mains Supply Cable
2Hygrometer Relay Cable
3Dryer Outlet
4Dryer Inlet
5Dryer Status Indicators
6Outlet Sight Glass
110 VA C
POWER
SUPPLY
HYGROMETER
DEWPOINT
RELAY

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DME012-RX - DME080-RX
3. Installation & Commissioning
Warning
Only competent personnel trained, qualified, and approved by domnick hunter should perform installation,
commissioning and service procedures.
3.1 Locating the equipment
Identify a suitable location for the equipment taking into consideration the minimum space requirements for maintenance and lifting
equipment as shown in the diagram below. When considering the final location of the equipment take into account the noise generated
when in use.
The dryer can be free standing or secured to the floor via the fastener points provided in the base.
±2°
50% @ 40oC
(80% MAX ≤ 31oC)
+45oC
+5oC
500 CRS
A
A
B
B
ECO
ECO
A
A
B
B
ECO
ECO

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DME012-RX - DME080-RX
3.2 Mechanical Installation
The Dewpoint Dependent Switching (DDS) system requires a sampling point to be inserted into the piping at the outlet of the dryer.
It is important to ensure that all piping materials are suitable for the application, clean and debris free. The diameter of the pipes must be
sufficient to allow unrestricted inlet air supply to the equipment and outlet gas / air supply to the application.
When routing the pipes ensure that they are adequately supported to prevent damage and leaks in the system.
All components used within the system must be rated to at least the maximum operating pressure of the equipment. It is
recommended that the system be protected with suitably rated pressure relief valves.
A by-pass line may be installed into the system to provide a constant air supply during maintenance.
Caution
The by-pass line will allow untreated air to pass to the application and should only be used when the dryer has
been shut down.
3.3 Electrical Installation
Warning
A fully qualified electrical engineer must undertake all electrical work in accordance with local regulations
3.3.1 Mains supply
The dryer is supplied with a 3 core non-detachable mains supply cable as identified below.
1
2
110VAC
POWER
SUPPLY
LIVE
NEUTRAL
EARTH / GROUND
Warning
The Green / Yellow cconductor of the 3 core cable must be bonded to earth (ground)

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DME012-RX - DME080-RX
The equipment should be connected to the electrical supply through a switch or circuit breaker. This device should be clearly and indelibly
marked as the disconnecting device for the equipment and located in close proximity to the equipment and be easily accessible to the
operator.
Overcurrent protection must be fitted as part of the building installation. This protection should be selected in accordance with local and
national code regulations and based upon the technical data supplied for this equipment.
3.3.2 Hygrometer relay
The dryer is supplied with a 3 core non-detachable hygrometer relay cable as identified below.
Warning
The mains supply cable and hygrometer relay cables are clearly identified at the cable gland. Ensure that
the correct cable is selected prior to continuing the installation
1
2
HYGROMETER
DEWPOINT
RELAY
For correct operation of the DDS system, conductors 1 and 2 should be connected across a set of volt free contacts as shown.
When in operation, the contacts should close when the dewpoint reaches the set point and remain closed until the moisture
content rises above the set point.
Note: The dryer has an internal moisture over-ride which has been factory set at 30 minutes. This means that the dryer will revert
to normal operation after 30 minutes regardless of the dewpoint.

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DME012-RX - DME080-RX
4. Operating the equipment
4.1 Overview of Controls
The facia of the dryer consists of indicators only as follows:
Power “ON” Indicator
ECO (DDS) Indicator
Column A Pressure Gauge
Column B Pressure Gauge
1
2
3
4
4.2 Starting the equipment
Warning
Start-up should be undertaken by a domnick hunter trained, qualified and approved service engineer.
1. Ensure that the isolation valves on the inlet and the outlet of the dryer are closed.
2. Connect the electrical supply to the dryer and verify that the Power On indicator is illuminated.
3. Slowly open the isolation valve on the inlet of the dryer. Verify that there are no leaks.
4. Check that the system pressure relief valve is closed.
5. Test the condensate drains of the filters and verify that they are discharging correctly into a suitable collection vessel.
6. When the dryer is pressurised to full system pressure, slowly open the outlet isolation valve.
If a bypass line has been fitted, close the bypass valve.
7. Verify that the column pressure gauges are cycling between zero and full system pressure every three minutes.
The dryer is fully automatic and requires no user intervention until shut-down.
Dewpoint Dependent Switching (DDS)
If the dryer is producing air at a better dewpoint than specified the DDS system will hold the dryer at a point just before the changeover
occurs. The green “ECO” LED will illuminate and both pressure gauges will read full system pressure.
The dryer will resume normal operation the instant the DDS system monitors a fall in dewpoint to the specified level.
1
3
4
2
4.3 Stopping the equipment
1. Close the isolation valve on the outlet followed by the isolation valve at the inlet.
If a bypass line has been fitted, simultaneously open the bypass valve.
2. De-pressurise the dryer by venting through the drain ball valve on the outlet dust filter.
Note: The drain valve should be opened gradually.
3. Disconnect the electrical supply to the dryer.

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DME012-RX - DME080-RX
5. Servicing
The recommended Service procedures identified in table 5.2 and all other repair and calibration work should be undertaken by a domnick
hunter trained, qualified and approved engineer.
5.1 Cleaning
Clean the equipment with a damp cloth only and avoid excessive moisture around any electrical sockets. If required you may use a mild
detergent, however do not use abrasives or solvents as they may damage the warning labels on the equipment.
5.2 Service Intervals
Description of Service Requirement Typical Recommended Service Interval
Component Operation
Daily
Weekly
3 Months 6 Months
12 Months 24 Months 30 Months
Dryer Check POWER ON indicator is illuminated. - - - - - -
Dryer Check STATUS / FAULT indicators located
on the control panel. - - - - - -
Dryer Check for air leaks. - - - - - -
Dryer Check the pressure gauges during purging
for excessive back pressure. - - - - - -
Dryer Check the condition of electrical supply
cables and conduits. - - - - - -
Dryer Check for cyclic operation. - - - - - -
Dryer Replace the active exhaust silencers
Recommended Service A - - - - - -
Filtration Replace the inlet, outlet and control air
filters, and service drains. - - - - - -
Dryer Replace / Calibrate dewpoint transmitter - - - - - -
Dryer Replace the valve seats and seals.
Recommended Service D - - - - - -
Dryer Replace the Desiccant.
Recommended Service E - - - - - -
Check Replace
Table 5.2

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DME012-RX - DME080-RX
5.3 Service Kits
Service Kit Description Kit No Quantity
A – Silencer Service
Kit: Exhaust Silencer DME012-RX - DME040-RX 608233670 1
Kit: Exhaust Silencer DME050-RX - DME080-RX 608330001 1
D – Valve Service
Kit: Valve Overhaul DME012-RX - DME040-RX 608330006 1
Kit: Valve Overhaul DME050-RX - DME080-RX 608330007 1
E – Desiccant Service
AA 11.2 Litre Bag 608203661 See table below
Kit: Column Seals DME012-RX - DME040-RX 608203733 1
Kit: Column Seals DME050-RX - DME080-RX 608330010 1
Snow storm filler DME012-RX - DME040-RX 608200622 1
Snow storm filler DME050-RX - DME080-RX 608201051 1
DME012-RX DME015-RX DME020-RX DME025-RX DME030-RX DME040-RX DME050-RX DME060-RX DME080-RX
Dryfil AA 1 1 2 2 2 2 3 4 5
Seals 1 1 1 1 1 1 1 1 1
A
E
D

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DME012-RX - DME080-RX
5.4 Service Record
Date of Commissioning
Service
(Hours)
Hours
Shown Date
Serviced By
Comments / Observations
Print Initials
4,000
8,000
16,000
20,000
24,000
28,000
32,000
36,000
40,000

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DME012-RX - DME080-RX
6. Troubleshooting guide
In the unlikely event that a problem occurs on the equipment, this troubleshooting guide can be used to identify the probable cause and
remedy.
Warning
Troubleshooting should only be attempted by competent personnel. All major repair, and calibration work should
be undertaken by a domnick hunter trained, qualified and approved engineer.
Problem Indication Probable Cause Remedy
Poor dewpoint Crystals go clear in the outlet
sight glass (DME040 - 080-RX
Models only)
Entrained Water
Excessive air flow demand
Inlet pressure too low
Excessive inlet air
temperature
Insufficient purge air flow
Exhaust silencers blocked
Contaminated desiccant
Check pre-filtration drains.
Check actual flow against rated flow of
dryer
Check for recent additions to air system
Check against technical specification
Check against technical specification
Factory set for 6 bar g (87 psig) system
pressure.
domnick hunter trained personnel to
adjust
Change by domnick hunter trained
personnel
Eliminate source of contamination.
Desiccant change by domnick hunter
trained personnel
Electrical fault Flashing Yellow LED Hardware fault Contact domnick hunter customer
services
High differential pressure Pressure gauges Excessive outlet flow Check and regulate air demand
Failure to purge No depressurisation and poor
dewpoint
Purge valve blocked or shut.
Exhaust silencers blocked.
domnick hunter trained personnel to
adjust.
Change by domnick hunter trained
personnel
Outlet air flow stops Downstream pressure drops.
Yellow LED “OFF”
Electrical fault.
Blown fuse in plug.
domnick hunter trained personnel to
adjust.
Change by domnick hunter trained
personnel
Constant depressurisation Erratic air flow from exhaust Damaged valve. Change by domnick hunter trained
personnel

Declaration of Conformity EN
Parker Hannifin ltd, Industrial division
Dukesway, TVTE, Gateshead, Tyne & Wear, NE11 0PZ. UK
Adsorption Dryer
DME012-RX, DME015-RX, DME020-RX, DME025-RX, DME030-RX, DME040-RX, DME050-RX, DME060-RX, DME080-RX
Directives 97/23/EC
2006/95/EC
2004/108/EC
93/68/EEC, 92/31/EEC
Standards used EN 61010-1 : 2001
EN 61000-6-1 : 2005EN 61000-6-2 : 2001
EN 61000-6-3 : 2001EN 61000-6-4 : 2001
EN 61000-3-2 : 2000
EN 61000-3-3 : 1995
Generally in accordance with ASMEVIII Div 1 : 2004.
PED Assessment Route : B & D
EC Type-examination Certificate: LDS 9900792/5
Notified body for PED: Lloyds Register Verification
71 Fenchurch St. London
EC3M 4BS
Authorised Representative Derek Bankier
Divisional Quality Manager
Parker Hannifin ltd, Industrial division
Declaration
I declare that as the authorised representative, the above information in relation to the supply / manufacture of this product, is
in conformity with the standards and other related documents following the provisions of the above Directives.
Signature:Date: 22/01/2010
Declaration Number: 0028/220110