Instructions for Use Switch Unit AGS 80 D Variant A

Instructions for Use Switch Unit AGS 80 D Variant A

Please note!!! The notes and technical details mentioned in this documentation / these instructions for installation reflect the status at the time of printing. Due to permanent development efforts for our products, we reserve the right to constructional modifications at any time. For this reason and depending on the state of construction and development, the illustrations of this documentation may deviate from the actual appearance of the product. But this fact does not have any influence on the functional correctness of the notes and operational sequences. Heyer Aerotech GmbH Nieverner Straße 30 D-56132 Nievern Phone: +49 (0)2603 / 2004 Fax: +49 (0)2603 / 4020 E-Mail: office@heyer-aerotech.de Seite 2 von 29

Table of Contents Page 1. Manufacturer s Data...4 2. Introduction...5 3. Putting into Operation...6 4. Settings...6 5. Functional and Operational Principles...7 5.1. Pneumatic components... 7 5.1.1 Illustration... 8 5.2. AGS D Monitor... 9 5.2.1 Functionality... 9 5.2.1.1 General information... 9 5.2.1.2 Emergency power supply... 10 5.2.1.3 Pressure monitoring... 10 5.2.1.4 Switching... 11 5.2.1.5 Issuing alarms... 11 5.2.1.6 Logging... 11 5.3 Electrical connections...12 5.4 Service Menu...14 7. Technical Details...19 8 Design Variants...20 10. Warranty...23 11. Technical Documentation...24 Seite 3 von 29

1. Manufacturer s Data Instruction for use Switch unit AGS 80 D Product: AGS 80 D Manufacturer and Sales Office Heyer Aerotech GmbH Nieverner Straße 30 D-56132 Nievern Tel.: +49 (0) 26 03 / 20 04 Fax.: +49 (0) 26 03 / 40 20 E-Mail: office@heyer-aerotech.de Seite 4 von 29

2. Introduction Dear customer! Thank you for choosing a HEYER Aerotech product. HEYER Aerotech appliances are state-of-the-art technology and manufactured according to extremely strict quality standards. You have purchased a highly professional and long-lasting product which is easy to maintain. It is based on the experience of decades and the know-how of powerful medical technology. The switch unit AGS 80 D complies with all the standards and guidelines currently applicable for the production and operation of the equipment. If, nonetheless, you should find a reason for complaint please do not hesitate to contact our customer service department at any time. Before putting the equipment into operation for the first time, please carefully read these instructions for use and pay special attention to the notes which have been marked additionally. Seite 5 von 29

3. Putting into Operation Instruction for use Switch unit AGS 80 D Use the patented screw joints of the curved tube on both sides of the cylinder rack to connect the gas cylinders. Tighten the screws with your hands. Please do not use any pliers, because the tightness will be achieved by the cylinder pressure. Close all the high-pressure cut-off intervalves and ventilation valves of the high-pressure manifold. Now you can open the cylinder valves to test if all the connections are tight. After that you can open the high-pressure intervalves. The pressure of the cylinder on the right and on the left is displayed on the corresponding pressure gauges. Please note!! Cylinder valves and high-pressure intervalves always have to be opened very slowly. BE CAREFUL DANGER OF EXPLOSION! When connecting oxygen please observe the applicable accident prevention regulations for oxygen. Free from oil and grease. No open light or fire. 4. Settings The reduction valves installed in the switch unit have been set at the factory. The high-pressure reduction valves ( Illustr. 2 8) have been set to appr. 12 bar. This setting is displayed on the corresponding pressure gauge. The high-pressure reduction valves ( Illustr. 2 8) are equipped with safety valves which have been set to appr. 16 bar. The constant pressure reducer ( Illustr. 2 2) has been set to 5 bar. This setting is also displayed at the corresponding pressure gauge. For the operation of the switch unit only 1 mains pressure reducer is necessary. The second redundant mains pressure reducer has to be kept closed and is only used during service works at the first mains pressure reducer. When you open the mains cut-off valves ( Illustr. 2 5) the pressure developing in the piping system will be displayed on the instruments ( Illustr. 2 6). When you open one side of the mains cut-off valves ( Illustr. 2 5) the corresponding pressure in the piping system will be displayed on the instruments ( Illustr. 2 6). 5 bar appr. 5 bar Liquid gas vaporizer min. 15 bar appr. 12 bar appr. 12 bar Seite 6 von 29

5. Functional and Operational Principles 5.1. Pneumatic components The HEYER AEROTECH switch unit AGS 80 D is a device which is capable of switching between a liquid gas vaporizer or two cylinder racks by means of adjustable pressure limits. The functions Reserve 1 or Reserve 2 can be assigned individually to these two cylinder racks. The device can also be operated without a liquid gas vaporizer. All the pressures displayed are monitored on the basis of their individual alarm thresholds. This is why the HEYER AEROTECH switch unit AGS 80 D is able to ensure a permanent supply of medical gas with the types of gas at its disposal. Seite 7 von 29

5.1.1 Illustration 7 11 10 5 12 6 13 3 2 4 9 8 1 Illustr. 2 Switch unit AGS 80 D Model O 2 Article No.: 538-3100 Legend: 1 Magnetic valve 8 High pressure reducer 2 Constant pressure reducer, mains pressure ¾ 9 Sensor high pressure 3 Connection 3rd source of supply 10 Emergency supply 4 One-way valves 11 Mains connection 5 Cut-off valve ¾ 12 Relief line 6 Sensor mains pressure 13 Sensor medium pressure / system pressure 7 Safety valve 6 bar Seite 8 von 29

5.2. AGS D Monitor 5.2.1 Functionality 5.2.1.1 General information The control unit AGS-D is used for automatic switching in a gas switching unit for medical gas supply. The mains pressure is kept by automatic switching between a main source and two auxiliary sources. The control unit makes sure that the corresponding gas is permanently supplied. Pressures of the main source and of the auxiliary sources as well as system and mains pressures are constantly monitored. Channel control is carried out by pressure transmitters (4-20mA). Each pressure has been assigned to a (multi-coloured) LED. These LEDs either show the normal condition (green) or a state of alarm (yellow or red for mains pressure). The QUIT key allows the user to suppress the acoustic alarm. With an alarm of the mains pressure, the acoustic signal is repeated after 12 minutes. The LCD displays the sources, the alarm thresholds and the current pressure. In addition, the sequence of sources, which is relevant for switching, is displayed in Roman numerals. The currently active source is shown by inverting the source designation. In the lower area, the state of the corresponding pressure is displayed in text form (i.e. OK, HIGH, LOW). Seite 9 von 29

The following 5 keys are on the user interface: a) ON/OFF key b) QUIT key c) UP and DOWN keys d) ENTER key Pressing the ON/OFF key for some time will turn the unit on or off. The QUIT key can be used to suppress the acoustic signal. For navigating in the service menu use the UP and DOWN keys and the ENTER key. On the user interface there are 3 additional LEDs (Battery, Controller, Info). The LED for Battery is green when the state of the batteries is ok. The Battery LED is red when the battery is faulty or when it has not been connected. The LED for Controller is green when the micro-controller system has not found any failures during its regular self-test, otherwise it is red. The LED for Info flashes green when the cache contains messages. 5.2.1.2 Emergency power supply When the main power supply via transformer unit fails one battery will backup the power supply of the control unit. The electronic elements will stay in operation for appr. 2 more hours. During this time the backlights of the LCDs will be turned off. At the push of a button, the backlights will be activated for 15 seconds. The switching valves and the signal relays will be turned off as well. 5.2.1.3 Pressure monitoring The channels in use are monitored on the basis of an upper and a lower alarm threshold. In case of an error, the corresponding LED will shine red or yellow and the status in the LCD will flash. In addition, an acoustic alarm will be activated. When pressing the QUIT key, the acoustic alarm will be suppressed and both the source and the LED will flash. With an alarm of the mains pressure, the suppression will be overridden after 12 minutes. Pressure monitoring of the sources left and right has a hysteresis of 2bar at the lower alarm threshold. That means, pressure must exceed the lower alarm threshold by 2bar upwards before pressure for the control unit is accepted as OK by the system. Seite 10 von 29

5.2.1.4 Switching When the pressure of the liquid gas vaporizer falls below a preset threshold value, the system will switch to the cylinder rack defined as Source II. When the corresponding switching pressure falls below the acceptable value the system will also switch. When the pressure of Source II lies below its also adjustable threshold value, the system will immediately change to the cylinder rack Source III. In case that the cylinder rack Source II falls below its threshold value, the control unit will also switch to Source III. As soon as the pressure of the liquid gas vaporizer has reached a level above its threshold value, the cylinder racks will be deactivated again. 5.2.1.5 Issuing alarms Issuing alarms for failure states is carried out by means of potential-free signal contacts. For that purpose, 5 alarm contacts and a common contact are available. 5.2.1.6 Logging The control unit has been equipped with a cache for a maximum of 250 entries and a history memory for a maximum of 1,000 entries. Any important failures or messages will be recorded in the cache. After acknowledging them in the service menu, they will be transferred to the history memory. Seite 11 von 29

5.3 Electrical connections On the rear side of the control unit you will find the following connections: Identifier Trafoeinheit/ Transformer unit Ventil 1 / Valve 1 Ventil 2 / Valve 2 Floweinheit / Flow unit USB CAN-Bus S1 S2 S3 S4 S5 Alarm contacts Vorw.-relais /Preheating relay Description Connection to the transformer unit Magnetic valve for cylinder rack left Magnetic valve for cylinder rack right Connection to flow unit Connection to PC Connection to net Pressure sensor mains pressure Pressure sensor medium pressure Pressure sensor liquid gas vaporizer Pressure sensor cylinder rack right Pressure sensor cylinder rack left D-Sub 25-pole socket signal contacts Connection for pre-heating unit Table 1: Connections of control unit Colour Brown Blue Description 1: +U B 2: -U B Out 4-20mA Table 2: Terminal assignment sensor cable Seite 12 von 29

Contact Description 1 G: Common contact 2 A: Common contact 3 R: Alarm contact 1 4 G: Alarm contact 2 5 A: Alarm contact 2 6 R: Alarm contact 3 7 G: Alarm contact 4 8 A: Alarm contact 4 9 R: Alarm contact 5 10 11 12 13 14 R: Common contact 15 G: Alarm contact 1 16 A: Alarm contact 1 17 R: Alarm contact 2 18 G: Alarm contact 3 19 A: Alarm contact 3 20 R: Alarm contact 4 21 G: Alarm contact 5 22 A: Alarm contact 5 23 24 25 Table 3:Contact assignment D-Sub 25-pole socket Seite 13 von 29

Explanation: For each alarm contact there is a relay with an operating and a rest contact. G: common contact A: operating contact R: rest contact When G is connected through to R, this means that an error has come up or that the equipment has been switched off. When G is connected through to A, this means that there is no error, i.e. the channel is OK. 5.4 Service Menu The service menu is started by pressing the ENTER key. When no key has been activated in the service menu for 1 minute it will be closed automatically. The service menu is set up as follows: 1 Current messages 2 Old messages 3 I: Cyl. left II: Cyl. right 4 Info 5 Alarm thresholds 6 Service 7 EXIT By using the UP and DOWN keys, the entry required can be selected (inverse presentation). By pressing the ENTER key you can change to the corresponding sub-menu. You can leave the main menu by selecting 7 EXIT and pressing the ENTER key. You can also leave the main menu by pressing the QUIT key. Seite 14 von 29

To 1) The sub-menu aktuelle Meldungen/current messages allows you to view the cache. Use the UP and DOWN keys to browse the cache which includes up to 250 messages. The first message will be at the top of the memory. In order to delete the current messages the arrow has to be placed on the first message. Then use the ENTER key to select the entry (inverse). By pressing the QUIT key, the entry will be transferred from the cache to the history memory. To 2) The sub-menu alte Meldungen/old messages allows you to view the history memory. The history memory is made up of a maximum of 1,000 messages. When exceeding this limit, the oldest message will be deleted. The last entry, chronologically seen, is at the top of the list. Use the UP and DOWN keys to view the history memory. To 3) In II: Fl. Links III: Fl. Rechts/II: Cyl. left III: Cyl. right you can change the order of sources by pressing the ENTER key. Seite 15 von 29

To 4) The sub-menu Info allows you to view the following system information: System time Next service month Serial number Software versions To 5) The upper and lower alarm thresholds for Flasche Links/cylinder left, Flasche Rechts/cylinder right, Kaltvergaser/liquid gas vaporizer, Mitteldruck/medium pressure and Netzdruck/mains pressure can be changed in this sub-menu. Use the UP and DOWN keys to select the value to be changed. The entry is displayed in inverse form when you use the ENTER key and can then be changed by means of the UP and DOWN keys. Pressing the ENTER key again will inactivate the inversion and save the value. Use EXIT to leave the sub-menu. Pressure sensor Lower threshold Upper threshold Steps 0 250 bar 10 250 bar 10 250 bar 5 bar 0 20 bar 5 20 bar 5 20 bar 1 bar 0 12,5 bar 3 6 bar 3 6 bar 0,1 bar Table 4: Ranges for setting thresholds To 6) Sub-menu Service This menu item is used to determine and carry out the basic settings and customer-specific parameters of the control system. In order to guarantee trouble-free operation only expert service personnel has access to this menu item. Seite 16 von 29

The following values are set at the factory: Designation Upper alarm threshold source left Lower alarm threshold source left Upper alarm threshold source right Lower alarm threshold source right Upper threshold liquid gas vaporizer Lower alarm threshold liquid gas vaporizer Upper alarm threshold medium pressure Lower alarm threshold medium pressure Upper alarm threshold mains pressure Lower alarm threshold mains pressure Order of sources Source II Liquid gas vaporizer available Pre-heater available Number of short events within 1 hour 5 Switch pressure liquid gas vaporizer pressure Cold R1 Switch pressure medium pressure Cold R1 Switch pressure medium pressure R1 R2 Switch delay Cold R1 Switch delay R1 R2 Alarm delay cylinder rack left Alarm delay cylinder rack right Alarm delay liquid gas vaporizer Alarm delay medium pressure Alarm delay mains pressure Alarm delay liquid gas vaporizer medium pressure Service interval Standard value 220 bar (250 bar sensor) 50 bar (250 bar sensor) 220 bar (250 bar sensor) 50 bar (250 bar sensor) 18 bar (20 bar sensor) 9 bar (20 bar sensor) 18 bar (20 bar sensor) 9 bar (20 bar sensor) 5,5 bar (12,5 bar sensor) 4,5 bar (12,5 bar sensor) Cylinder rack left Yes No 9 bar 9 bar 9 bar 0.5 sec 0.5 sec 2 sec 2 sec 2 sec 2 sec 2 sec 2 sec 6 months Service month 01 2009 Service phone number 02603-2004 Rest cache 50 Common contact message with service Common contact message with overflowing cache Common contact message with too many temporary events LCD contrast 32 Table 5: Factory settings Yes Yes Yes Seite 17 von 29

Purpose and characteristics Monitoring pressures of supply source (negative pressure) for medical gas supplies and monitoring mains pressure (excess and negative pressure), displaying cylinder rack ready for operation and signalling status Monitoring 5 pressures simultaneously. Red, orange (state of alarm) and green (pressure OK) LEDs Display of cylinder rack ready for operation Acoustic alarm with buzzer Suppressing acoustic alarm by means of button Signalling state by potential-free changeover contact per channel Electrical connections 2 contacts for connection of 24V supply, DC voltage or AC voltage (50Hz). Connections for Channel 1 / 2 / 4 (for designation of channels see Illustr. 3): 2 contacts for press key Pressure alarm low (opens in a state of alarm) 3 contacts for remote control Connections for Channel 3 (for designation of channels see Illustr. 3): 3 contacts for switch Operating status display Connections for Channel 5 (for designation of channels see Illustr. 3): 2 contacts for press key Pressure alarm low (opens in a state of alarm) 2 contacts for press key Pressure alarm high (opens in a state of alarm) 3 contacts for remote control For press keys, please only use potential-free switches. When a press key is not used its connections have to be short-circuited. Seite 18 von 29

7. Technical Details Electrical Details Operating voltage: Connecting power: 230 V, 50 Hz 50 VA Pneumatic Details Max. cylinder pressure: Operating pressure: Input pressure liquid gas vaporizer Max. flow rate: Potential-free contacts: 250 bar 9 to 12 bar min. 15 bar 80 to 120 Nm 3 /h, depending on design 5 pcs. Components Cut-off valve Pressure sensors Safety valve One-way valve Constant pressure reducer Magnetic valves High-pressure reducer Seite 19 von 29

8 Design Variants AGS 80 D - with two constant pressure reducers incl. connection of 3rd source of supply Gas type Article no.: O2 538-3100 Air 538-3105 N2O 538-3110 CO2 538-3120 Please indicate flow rate Seite 20 von 29

9. List of Spare Parts Instruction for use Switch unit AGS 80 D Item Article number Designation of article 1 036-3820 Sealing, connecting curved tube, oxygen, 18 x 10 x 4,3 2 036-3810 Sealing, connecting curved tube non-inflammable gases, 16 x 8 x 4.3 3 036-3811 Sealing, connecting curved tube CO2 16 x 8 x 5 4 036-3860 Sealing, connecting curved tube, laughing gas 12.5 x 7 x 12 5 036-3706 Cu-sealing 19 x 13 x 3 6 036-3740 Cu-sealing 23 x 13 x 3 7 029-3865 Cut-off valve DN 20 ( R 3/4 ) with butterfly handle with butterfly handle 8 029-1600 Constant pressure reducer 9 026-1970 Pressure transmitter 0-12,5 bar 10 026-1976 Pressure transmitter 0-250 bar 11 026-1977 Pressure transmitter 0-20 bar 12 0283130 Safety valve ( R ½ ; R ¾ ) 13 410-0190 AGS D control unit Seite 21 von 29

Item Article number 14 410-0191 AGS D Mains adapter 15 410-0192 AGS D Cable set 16 left 410 0169 High pressure reducer right 410 0170 17 027-3170 Magnetic valve ¾ 18 018-3220 One-way valve AGS 80 19 410-0171 Set of spare parts / repair set, high-pressure reducer MS AGS 80 20 0000-7100 Wearing part - set constant pressure reducer ¾ 0 to 16 bar Seite 22 von 29

10. Warranty The warranty period for the HEYER AEROTECH Switch Unit AGS 80 D is 12 months starting from the date of sale in accordance with the following conditions: During the period of warranty, we will eliminate, free of charge, any damage or failures of the equipment caused by verifiable faults in production or in the material, provided that these failures have been reported without delay after detection. Deviating from this, the warranty for engines of any type, compressors, electric switching devices, semiconductor elements, electric displays and measuring equipment is six months. The elimination of faults, free of charge, will be carried out in our factory. This warranty is not applicable to fragile parts made of glass, for example, or consumable and wearing parts. In the case of a guarantee, the decision of whether to repair or exchange the equipment will be at our own option. Cases of guarantee will neither extend the period of warranty nor will they represent the start of a new period of warranty. Spare parts which are installed will not be subject to an individual period of warranty. Any damage caused by improper use, faulty operation, mechanical damage or nonobservance of the instructions for use as well as any damage caused by force majeure or any other unusual environmental conditions will not be covered by the warranty. The warranty claim will expire when interventions, changes or repairs of the equipment have been carried out by people who have not been authorised by us to do so or when the equipment has been used with additional accessories or spare parts of strange origin. Further claims as well as any so-called consequential damage will be excluded as long as liability is not required by law. Equipment may be subject to technical changes without notice! Rev. 2.2 as per 01 June 2010 Seite 23 von 29

11. Technical Documentation High pressure reducer Seite 24 von 29

Pos. Benennung / Description Menge / Quantity Included in repair set Item Dèsignation / Descrizione Débit / Quantità 4 O-Ring (23,3x2,4) / O ring / O anneau / Quarnizione O-Ring 1 X 5 Verschlußschraube, kpl. / Locking screw, compl. / Vis de fermeture, compl. / Tappo, compl. 1 X 6 Druckteller / Pressure plate / Plaque de pression / Piatto a pressione 1 X 7 Bremse / Brake / Frein / Freno 1 X 8 Feder / Spring / Ressort / Molla 1 X 9 Dichtung / Sealing / Joint / Quarnizione 2 X 10 Federteller / Spring plate / Disque de ressort / Piatto molla 1 X 11 Ventilsitz / Valve seat / Siège de soupape / Sede della valvola 1 13 Ventilkegel / Valve cone / Cône de soupape / Otturatore 1 X 14 Schraube / Screw / Vis / Vite 1 X 15 O-Ring (75x3) / O ring / O anneau / Quarnizione O-Ring 1 X 16 Gleitring / Slide ring / Anneau de glissement / Scivolo anello 1 X 18 Membrane / Diaphragm / Membrane / Membrana 1 X 19 31 32 Membranplatte / Diaphragm plate / Plaque de membrane / Piatto di membrana Gehäuse Abblaseventil / Housing for pressure relief valve / Cage pour la soupape de surète / Corpo valvola di sfiato Ventilkegel, kompl. / Valve cone, compl. / Cône de soupape, compl. / Otturatore, compl. 1 X 1 X 1 X Manometer P 1 2 Pressure gauge P 1 Manomètre P 1 1 Manometro P 1 Manometer P 2 3 Pressure gauge P 2 Manomètre P 2 1 Manometro P 2 23 Einlegemutter / Insertion screw / Ecrou à inserer / Dado insertito 1 24 Einstellschraube / Adjusting screw / Vis de réglage / vite del regolamento 1 25 Mutter / Nut / Ecrou / Dado 1 26 Mutter / Nut / Ecrou / Dado 1 27 Zylinderstift / Cylindrical pin / Pied de centrage / Perno cilindrato 1 O 2 = Sauerstoff / oxygen / oxygene / ossigeno P 1 = max. Vordruck (bar) / max. inlet pressure (bar) / max. pression amont (bar) / mas. pressione d ingresso (bar) P 2 = max. Hinterdruck (bar) / max. outlet pressure (bar) / max. pression aval (bar) / mas. pressione di uscita (bar) Seite 25 von 29

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Magnetic valve Nominal width DN 20 mm Case material Brass acc. to DIN EN 50930-6 Isolation class sealing material EPDM H Valve, interior parts Sealing material Stainless steel, brass EPDM Medium temperature EPDM -40 to +120 C Ambient temperature max. +55 C Voltage tolerance ±10 % Rated service type Continuous service 100% ED Electrical connection Plug tags acc. to DIN EN 175301-803 Form A (formerly DIN 43650) for outlet Type 2508 Protection type Position of installation Switching times IP 65 with outlet At will 0.1-4 seconds (depending on nominal width and differential pressure) Seite 28 von 29

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