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Dryer flow diagram

Reference

Designation

Reference

Designation

1

Air inlet

7

Air outlet

2

Inlet selector valve

8, 9

Solenoid valve

3, 4

Desiccant tower

10, 11

Silencer

5

Purge nozzle

PI

Pressure gauge

6

Outlet selector valve

 

 

Operation principle (version without purge control)

The operation cycle of the dryer is repetitive and is controlled by a factory-set timer, programmed in the
central controller.

While the desiccant in one tower dries the compressed air, the desiccant in the second tower is being
regenerated. Regeneration of the desiccant is achieved by means of purge air from the drying tower.

The compressed air entering the dryer is led to one of the towers by means of the inlet selector valve. The
position of the selector valve depends on the condition (activated or not) of the solenoid valves. While the air
flows upwards through the tower, the desiccant adsorbs the water vapour and the compressed air is dried.

The dried air leaves the dryer via the outlet selector valve.

A small portion of the dried air passes a nozzle (5), expands to atmospheric pressure and flows downwards
through the other tower, regenerating (drying) the desiccant.

The regeneration air is released via the solenoid valve and the silencer of the regenerating tower. The solenoid
valves are controlled by the timer.

After a pre-set period, the function of the towers is reversed. The fully regenerated tower will now dry the
air, while the desiccant in the other tower will be regenerated.

By default, the regeneration timer will restart from the beginning of the cycle in case of a power failure during
operation.

Instruction book

2920 7099 70

15

Содержание dMED 100

Страница 1: ...BeaconMed s Dual medical air purifiers dMED 7 dMED 13 dMED 25 dMED 35 dMED 50 dMED 70 dMED 80 dMED 100 dMED 145 Instruction book...

Страница 2: ......

Страница 3: ...authorized use or copying of the contents or any part thereof is prohibited This applies in particular to trademarks model denominations part numbers and drawings This instruction book is valid for CE...

Страница 4: ...TRODUCTION 9 2 2 AIR FLOW 11 2 3 WSD AND FILTERS 13 2 4 CD DRYER 14 2 5 QDT FILTER 16 2 6 ELECTRICAL DIAGRAMS 16 2 7 OPTIONAL EQUIPMENT 17 3 ES MED Central controller 20 3 1 INTERFACE ICONS AND MENU S...

Страница 5: ...DP FILTER CHANGE 73 7 3 CD UNIT DESICCANT CHANGE 74 7 4 QDT FILTER MAINTENANCE 74 7 5 TESTING THE ELECTRONIC DRAIN VALVE 76 8 Problem solving 77 9 Technical data 80 9 1 FUSE VALUES 80 9 2 ELECTRIC CAB...

Страница 6: ...in environments or rooms where the sound pressure level reaches or exceeds 90 dB A shall wear ear protectors Never remove or tamper with the safety devices e g safety valves regulators All regulating...

Страница 7: ...orbidden to dwell or stay in the risk zone under a lifted load Lifting acceleration and deceleration must be kept within safe limits Wear a safety helmet when working in the area of overhead or liftin...

Страница 8: ...ressor full flow safety valves must be installed on the dryer vessels 16 If the maximum pressure of the compressor is higher than the design pressure of the dryer a full flow safety valve must be inst...

Страница 9: ...se the correct safety equipment such as safety glasses gloves safety shoes etc 2 Use only the correct tools for maintenance and repair work During use it is possible that tools will become contaminate...

Страница 10: ...ponents etc to prevent moisture from entering them e g when steam cleaning 18 Make sure that all sound damping material and vibration dampers e g damping material on the bodywork is in good condition...

Страница 11: ...dryer CD dryer to lower the pressure dew point PDP to 40 C 40 F eliminating the risk of condensation and strongly reducing water related problems like bacteria growth The QDT filter reduces hydrocarbo...

Страница 12: ...General views dMED general view 1 Air inlet 2 Water separator WSD 3 DD filter 4 PD filter 5 CD dryer 6 QDT filter 7 PDp filter 8 Pressure regulator 9 Safety valve Instruction book 10 2920 7099 70...

Страница 13: ...mentioned Always consult the local legislation on this topic since the specifications of the air quality can be different A dMED unit is considered as an active medical device relying on a source of e...

Страница 14: ...3 8 F Next is the QDT filter where oil vapour and smells of the dried air are reduced active carbon and where the conversion of CO into CO2 takes place catalyst in QDT Finally the air flows through th...

Страница 15: ...2 3 WSD and filters WSD and filters in the air flow WSD and filter overview Instruction book 2920 7099 70 13...

Страница 16: ...mg m3 0 01 ppm and particles down to 0 01 micron The filter is equipped with a drain Typical pressure drop over filter is 0 08 bar 1 16 psi when dry and 0 2 bar 2 9 psi when saturated The air flow is...

Страница 17: ...sition of the selector valve depends on the condition activated or not of the solenoid valves While the air flows upwards through the tower the desiccant adsorbs the water vapour and the compressed ai...

Страница 18: ...DT filter A QDT filter contains active carbon reducing volatile organic compounds VOC and hydrocarbons odours oil vapours to harmless levels A QDT filter contains active carbon and catalyst material c...

Страница 19: ...ction drawings provided Available options Electronic drain EWD The electronic drain is optional on the WSD the DD filter and the PD filter The electronic drain is a zero loss electronically operated d...

Страница 20: ...D or filters DD and PD before installing the EWD Voltage free contact DD PD and PDp filters A voltage free contact closing at a pressure drop of 0 35 bar 5 08 psi over the filter can be provided The c...

Страница 21: ...ol the purity of the air The oil indicator is a calibrated measuring instrument used to detect aerosol mist levels of oil entrainment that may be present in compressed air systems Sensitivity of the i...

Страница 22: ...rolling the compressors and dryers 5 Voltage LED Indicates that the voltage is switched on 6 Enter button Confirm action 7 Escape button Go to previous screen or end current action 8 Stop button Not u...

Страница 23: ...n Status Description No valid compressor A compressor controller is expected at this CAN address node but not detected No communication No reply from the connected compressor controller within a pre d...

Страница 24: ...ed Local backup system Service required The compressor s running hours have surpassed the predefined interval and maintenance must be carried out Isolated User has isolated this compressor controller...

Страница 25: ...d maintenance is required Menu structure Main menu flowchart full access mode Downward navigation through the menus is done by pressing the Enter button Upward navigation through the menu is done by p...

Страница 26: ...ryer View screen ES_8 enables the user to view the plant information as graph or as 2 line or 4 line inputs 3 2 Central controller ES MED operation Gaining full access to all menus To access certain m...

Страница 27: ...After commissioning the plant the ES MED control system must be started see paragraph Starting further in this section During production the system should have been set correctly in the software To ve...

Страница 28: ...number of compressors present on your plant and ES should be set On Setting the unit of pressure In the Settings General submenu full access needed see above navigate to Pressure Unit and select the d...

Страница 29: ...Master submenu In normal circumstances these settings should not be changed please contact BeaconMed s Parameter Function Min setting Factory setting Max setting Unit Pressure band X High To program...

Страница 30: ...rting a new compressor at the interval programmed in Forced Time 2 2 30 days Maximum power down time If ArAF is set to Active e g instead of Infinite then the system will only restart automatically wi...

Страница 31: ...having completed the CAN and ES setup described above carry out the following steps 1 Put the compressor s main switch to ON and the local LAN switch to LAN The emergency forced local warning see sect...

Страница 32: ...l appear to indicate that the ES MED is operating Stopping and resetting the ES MED To stop a certain compressor see section Stopping in the compressor manual To force all compressors local the ES MED...

Страница 33: ...compressors any more The compressors are now in Forced Local Mode even though their local LAN switch may be in LAN position This allows the operator to do maintenance or troubleshooting on the central...

Страница 34: ...ry out maintenance on a compressor without transmitting alarms select the ES submenu from the main menu requires full access see above Browse to the compressor that needs to be isolated and press Ente...

Страница 35: ...yer pressure or dew point fault or after 200 operating hours the dryer will automatically switch to the backup dryer However also during normal operation it is possible to switch to the backup dryer T...

Страница 36: ...hen a dryer fails on low outlet pressure and or high dew point the controller will automatically switch to the backup dryer An icon representing the failure will be displayed on the failing dryer Inst...

Страница 37: ...r again it needs first to be reset manually Event history When an alarm is triggered the full situation inputs outputs time stamp is logged into the event history To take a look follow the following s...

Страница 38: ...tionally Please contact BeaconMed s Viewing information about the central controller Through the following submenu and pressing More information regarding MAC address software IP settings etc can be v...

Страница 39: ...e dryer as well as the pressure at the outlet of the dryer and the dew point The outputs are the alarms or normal status that are transmitted potential free to the hospital control room Closed corresp...

Страница 40: ...Inputs Instruction book 38 2920 7099 70...

Страница 41: ...6 Carbon dioxide 14 EWD Alarm status side 2 7 Modify 15 Pressure drop over filters side 1 8 Dryer inlet 16 Pressure drop over filters side 2 Outputs 1 Menu 11 Dryer 1 exhaust valve vessel B 2 Setting...

Страница 42: ...up cylinder pressure decreases below the predefined limit When this is resolved by successfully replacing the backup cylinders the warning will be automatically reset 2 Dryer 1 2 Dew Point Alarm Occur...

Страница 43: ...re part list whereby the error on the failed dryer needs to be reset manually 4 No valid pressure control Occurs when no read out is obtained indicated by stars for the dryer inlet pressure sensor As...

Страница 44: ...steps to set a custom IP address gateway and subnet mask After connecting an ethernet cable between your network and the controller the plant can be monitored on line when browsing to the set IP addre...

Страница 45: ...Instruction book 2920 7099 70 43...

Страница 46: ...ompanied by the red warning LED on the central controller and when applicable also on a compressor controller a problem needs to be remedied 4 alarms can occur alone or simultaneously Per alarm the po...

Страница 47: ...nt fault error will disappear automatically 4 All slave compressors in load There is a peak of high flow demand or the plant is not properly sizes resulting in all compressors being required to delive...

Страница 48: ...ssors of the plant are not performing to their full capacity Check that maintenance is carried out as required according to section Maintenance and that the drawn current on the amp meter corresponds...

Страница 49: ...tion The pressure measured at the outlet of the unit after the regulator exceeds the limits too high or too low Evidently this situation requires immediate attention Causes and remedies This situation...

Страница 50: ...1 Service 9 Depressurize vessels 2 Service plan 10 Drying after service 3 Service maintenance 11 Dryer forced operation Instruction book 48 2920 7099 70...

Страница 51: ...conomy saving The dryer exhaust valves will be closed when all compressors are stopped or in unload Whenever a compressor is being called to deliver air the dryer will operate in normal operation agai...

Страница 52: ...before performing any maintenance 1 Depressurize vessels 3 Activate 2 Remaining time Drying after service Whenever a dryer has been serviced receiving new desiccant it is possible this desiccant is n...

Страница 53: ...will be disabled automatically after a preset time 1 Drying forced operation 3 Modify 2 Remaining time Commissioning To ensure the system is in good condition when it s being commissioned this functio...

Страница 54: ...4 Installation 4 1 Dimension drawings Instruction book 52 2920 7099 70...

Страница 55: ...Instruction book 2920 7099 70 53...

Страница 56: ...Instruction book 54 2920 7099 70...

Страница 57: ...Instruction book 2920 7099 70 55...

Страница 58: ...Instruction book 56 2920 7099 70...

Страница 59: ...Instruction book 2920 7099 70 57...

Страница 60: ...Instruction book 58 2920 7099 70...

Страница 61: ...Instruction book 2920 7099 70 59...

Страница 62: ...References on drawings Instruction book 60 2920 7099 70...

Страница 63: ...room Reference Name 1 Minimum free area to be reserved for the medical air unit installation Install the equipment on a level floor suitable for taking its weight Provide enough space approximately 8...

Страница 64: ...tion of the dMED unit can only be done by trained and certified service personnel The preferred and recommended installation sequence is compressor 3 vessel 2 and dMED 1 The dMED does not require extr...

Страница 65: ...ctric diagram delivered with the unit Before switching on the main power supply check the voltage requirements in the technical specifications or on the unit s data plate 4 4 Pictographs Pictographs o...

Страница 66: ...will have This flow must not be directed into the air net but needs to be blown off via another way The initial dew point of the air leaving the unit will be higher than normal after starting Since th...

Страница 67: ...the start up phase of the compressor may damage the desiccant All valves couplings and pipes used installed after the unit must be free from oil and grease hydrocarbon contamination below 550 mg m2 an...

Страница 68: ...ater separator In case of EWD optional Check that no alarm is displayed on the service panel of the EWD 5 and that oil water aerosols and or solid particles are discharged via drain outlet 6 The amoun...

Страница 69: ...ize the vessels 3 Stop the dMED ES MED controller If the air treatment unit is stopped for a longer period keep the external inlet and outlet valve closed to avoid moisture from entering the unit Unde...

Страница 70: ...icles enter the unit Therefore correct maintenance of the water separator and the filters is crucial Safety precautions Maintenance must be done by trained and certified service personnel Use only aut...

Страница 71: ...eaks Check for abnormal noise Check the filter of the pressure dew point sensor for dust and clean if necessary Check the pressure drop over the filters Check if all drains are working properly Monthl...

Страница 72: ...ngs are in good shape and free of wear or abuse 6 3 Service kits Service kits Service kits are available offering the benefits of genuine parts while keeping the maintenance budget low The kits compri...

Страница 73: ...other used material e g desiccant lubricants cleaning rags machine parts etc must be disposed of in an environmentally friendly and safe manner and in line with the local recommendations and environme...

Страница 74: ...se will warn you if the bowl is not fully depressurized If this occurs the bowl should be screwed back and the venting should be repeated 4 Remove the drain valve 3 by unscrewing the retaining nut 5 u...

Страница 75: ...in valve 4 by unscrewing the retaining nut 5 underneath the bowl 6 Remove the O ring from the bowl and clean the bowl Position a new O ring on the bowl 7 Remove the O ring from the drain valve and pos...

Страница 76: ...ry 4000 hours whichever comes first Its pressure drop will not increase during its useful life Nevertheless the adsorption element must be changed earlier at the first signs of oil vapour and odour Wh...

Страница 77: ...lace the o ring between the flange and the head 14 Slowly pressurize the filters 15 Check for leaks A small amount of water based lubricant supplied in the medical cleaning kit may be applied to screw...

Страница 78: ...ion Control buttons of EWD 32 Functional test Briefly press the TEST button and check that the valve opens for condensate discharge Checking the alarm signal Close the condensate inlet Press the TEST...

Страница 79: ...to prevent an accidental start Close air inlet and outlet valve 2 of the unit The air inlet and outlet valve 2 can be locked during maintenance or repair work as follows Close the valve Using a wrenc...

Страница 80: ...Filter clogged Clean the filter bowl and replace the filter element QDT filter Condition Fault Remedy Bad filtration Activated carbon lifetime exceeded Replace the activated carbon at indicated inter...

Страница 81: ...int Check connections Check sensors Dew point sensor incorrect measurement Dew point alarm generated too early or too late Check sensors Replace defective parts Faults and remedies ES MED Condition Fa...

Страница 82: ...plicable if they are stricter than the values proposed below The voltage drop must not exceed 5 of the nominal voltage It may be necessary to use cables of a larger size than those stated to comply wi...

Страница 83: ...compressed air inlet pressure psig See section dMED data Minimum compressed air inlet pressure bar e See section dMED data Minimum compressed air inlet pressure psig See section dMED data Min max amb...

Страница 84: ...nt per vessel CD lb 18 1 18 1 18 1 25 6 33 7 Amount of activated carbon per vessel QDT kg 2 0 2 0 3 8 3 8 4 8 Amount of activated carbon per vessel QDT lb 4 4 4 4 8 4 8 4 10 6 Air quality Pharmacopeia...

Страница 85: ...dryer mbar 515 530 560 595 820 Pressure drop over dryer psi 7 47 7 69 8 12 8 63 11 89 Time of half a cycle s 180 180 120 120 120 Regeneration time s 145 145 95 95 95 Pressurization time s 35 35 25 25...

Страница 86: ...ower VA 124 124 124 166 Net mass kg 219 239 267 354 Net mass lb 483 527 589 780 Air quality Pharmacopeia O2 concentration 20 4 X 21 4 CO2 concentration ppm 500 CO concentration ppm 5 SO2 concentration...

Страница 87: ...ncentration ppm 2 Pressure dew point C 31 Pressure dew point F 23 8 Oil vapour mg m 0 1 Taste and odour free Unit dMED 70 dMED 80 dMED 100 dMED 145 Volume flow at dryer inlet l s 94 5 108 135 196 Volu...

Страница 88: ...C 31 Pressure dew point F 23 8 Oil vapour mg m 0 1 Taste and odour free Remark When the actual inlet pressure or inlet temperature differs from the reference condition the volume flow will be differe...

Страница 89: ...manufacturer 4 The design pressure and temperature of this pressure bearing part must be clearly indicated on the data label 5 If installed the safety valve must correspond with pressure surges of 1 1...

Страница 90: ...l CD 7 1627 0009 00 16 10 to 80 I 6 150 8 3 CD 13 1627 0010 00 16 10 to 80 I 6 150 11 7 CD 25 1624 0938 00 16 10 to 80 I 6 150 15 7 CD 35 CD 70 1624 0939 00 16 10 to 80 I 6 150 20 0 CD 50 CD 80 CD 10...

Страница 91: ...Devices Directive All components are designed manufactured and inspected according to the European Directive 93 42 EC annex II and art 11 par 3 Overall rating The dMED unit is conform the Medical Dev...

Страница 92: ...onformity 1 Contact address Atlas Copco Airpower n v P O Box 100 B 2610 Wilrijk Antwerp Belgium 1 Contact address BeaconMed s Telford Crescent Staveley Derbyshire S43 3PF United Kingdom Instruction bo...

Страница 93: ......

Страница 94: ...No 2920 7099 70 2012 01 Printed in Belgium www beaconmedaes com...

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