Manual - Amico
Contents
1. OPERATING ALARM SYSTEMS The manifold control cabinet contains the required circuitry to send a dry contact signal to the alarm unit when a bank is empty and change over occurs The normally closed internal circuitry is designed to alarm when there is an open circuit The depletion of a bank triggers a relay which renders the alarm circuit open and initiates the alarm signal Line Relief Valve E Supply Relief Valve Vent ee denne Pee 0 100 PSI GAUGE 0 300 PSI GAUGE FOR NITROGEN sso Isolation Valve For Dome Pressure Alarm Connection Pilot Regulator Used For Nitrogen Operating Relief Valve all Power Supply Ball Valve 4X Left Line Regulator Bleed Valve 2X Right Line Regulator Bank Transducer Bank Transducer 4000 PSI GAUGE 4000 PSI GAUGE Inlet Pressure Block Inlet Pressure Block F m Co 0 400 PSI GAUGE XA y Left Operating Dome Regulator Right Operating Dome Regulator Solenoid Valve Hinge Bracket Circuit Board Cover Plate 10 Amico Pipeline Display Functions Introduce power to the control cabinet Follow Cylinder Changing Procedures on the side of the cabinet to ensure that all cylinders fittings are secure and properly connected to the Header bar Check the indicator LED for proper functioning Only one Green LED on the side which had its operating regulator set first should be lit and the other side should have an Yellow LED lit Close the cylinder valve on the primary bank a2. o Always secure high pressure cylinders with racks straps or chains Unrestrained cylinders may fall over and damage or break off cylinder valve o Do not repeatedly bend sharply bend or twist copper pigtails as damage to tubing may occur o After the manifold wall bracket has been mounted one person alone should not attempt to lift and hang the manifold cabinet o Do not put the manifold into operation until verified by a qualified person as per NFPA 99 or other local standards 12 Amico Pipeline Wall Mounting Instructions Remove manifold control panel from the shipping carton and ensure it is in upright position on the foam packaging insert Using the back support bracket as a template place on the flat wall align top of the bracket with the level horizontal line The vertical center line of the bracket will be the vertical center line of the installed manifold The support bracket should be mounted 61 1 2 1 562 1 mm from the finished floor to the bottom hole on the bracket as shown in figure 1 Mark locations of mounting holes Remove the bracket and drill mounting holes Attach the bracket to the wall with appropriate anchors supplied by others 3 8 9 525 mm diameter anchors are recommended Figure 1 Locate bracket per horizontal line 61 1 2 1 562 1mm y To Floor www amico com 13 Wall Mounting Instructions Hang the manifold control panel on the mounting bracket The
3. 10 Slowly open cylinders and set bank regulator s output pressure as described in Bank Regulator Pressure Adjustment procedure Line Regulator Pressure Adjustment This procedure should be performed if the line regulator pressure are not within acceptable limits during performance verification procedure or after installation of a new line regulator 1 With both the bank regulators supplying pressure open only one ball valve on the inlet and outlet of the line regu lator to be adjusted 2 Slightly open depress the bleed valve on the side of the regulator to create a small flow of gas though the manifold 3 Using the handle on the bonnet of the regulator turn to adjust the pressure to the specified setting as mentioned on the cabinet door by observing the line gauge 4 Repeat steps 1 3 to adjust the other line regulator 5 After adjusting the pressure to the specified setting open all balls valves and ensure the supply line remains open 26 Amico Pipeline Line Regulator Replacement If necessary the line regulator replacement can be performed while manifold is in service However this should only be done by qualified technicians experienced in servicing medical equipment 1 Close the two ball valves on inlet and outlet of line regulator to be replaced 2 Loosen union nuts on two closed isolation valves 3 Vent pressure from the bank which was shut off in step 2 by depressing the bleed valve on side of the regulator
4. 60hz which is mounted on the top right hand side of the manifold and is provided with a 1 amp fuse CONTROL BOARD An electronic circuit board that controls the bank switch over lt monitors the pressure with the help of the bank transducers and controls the solenoid valve in order to initiate the bank switch or changeover The control board illuminates the ap propriate front panel indicators and also provides dry contacts for the activation of a remote buzzer or external master alarm Power to the control board is provided by the external power supply DANGER Electrical shock hazard Ensure that the main power source is turned off during the connection of the power supply www amico com 9 Description of Parts GAS SERVICE IDENTIFICATION Amico manifolds are clearly labeled for the intended gas use indicating the appropriate gas that is attached on the cabi net door There two pipes extending from the top of the cabinet one is for the main line pressure and the other is the vent for the pressure relief valves which is also labeled accordingly HEADER BAR CONNECTIONS The gas specific header bar should be attached to the In let block on either side of the manifold The In let block is pro vided with a sintered bronze filter and a C clip to secure it The header should contain the proper gas connections and all cylinder bar connections as well as the pigtail hose assemblies should comply with CGA standard B96 Com
5. I I I 7A FF FR i ISIS SSS Pd Ll DALIA x N N www amico com 33 Appendix C Wiring Schematic Heater Units Power Supply Heater Cartridge Wires Reset Switch Heater Cartridge Reset Switch Inside Inlet Pressure Block Heater Cartridge Inside Inlet Pressure Block sI Inlet Pressure Block Inlet Pressure Block ERA Ju HH LI HM poH LE P l J C HHI N The Heaters normally switch on when the temperature drops below 24 C or 75 F Ifthe temperature exceeds 65 75 C or 160 175 F the Heater re set switch will trip and the heaters will automatically switch off To re set the Heaters remove the heater covers amp press the red button on the re set switch to activate When the Heaters are in use or switched on it will draw up to 3 amps of current The Heater Cartridge is 200Watts each side normally both sides do not switch on together It depends on the flow of gas or climatic conditions 34 Amico Pipeline Appendix D Electrical Wiring Diagram Amico Medical Gas Alarm Master Alarm C 1 C 5 C 4 C SIC GIC TIC SIC 9 C 219 GIO l DIO DIO l AJA l O 115 VAC Connect the NO loop to the Supply appropriate points Voltage 1107 240 VAC Wiring 50 60 Hz Amico Gas Manifold Current Draw 1 Amp Max External Power Supply www amico com 35 Control Cabinet Wiring Diagram DOME LOADED MANIFOLD WIR
6. MAN 42E R For NIT M2 X MAN 42E LN M2 X MAN 42E RN Operating pressure regulator for HD Manifolds M3 X MAN 18DL L M3 X MAN 18DL R Repair Kit Line pressure regulator HD M2 REG700 RK Repair Kit Operating pressure regulator M2 REG250 RK HP 30 Amico Pipeline CONTROL CABINET PARTS LIST DESCRIPTION Intermediate check valve for all gases Operating pressure relief valve Nitrogen Operating pressure relief valve Oxy N20 Air amp CO2 Line Pressure relief valve for Nitrogen Line pressure relief valve for Oxy N20 Air CO2 Plug amp Chain assembly Air Plug amp Chain assembly CO2 Plug amp Chain assembly N20 Plug amp Chain assembly Nit Plug amp Chain assembly Oxy Copper pigtail c w Check valve Air Copper pigtail c w Check valve CO2 Copper pigtail c w Check valve N20 Copper pigtail c w Check valve Nit Copper pigtail c w Check valve Oxy Stainless pigtail c w Check valve Air Stainless pigtail c w Check valve CO2 Stainless pigtail c w Check valve N20 Stainless pigtail c w Check valve Nit Extension wall support High pressure inlet valve ALERT 2 1 LED circuit board assembly Manifold Power Supply Solenoid Valve MODEL NUMBER M X MAN 33B M X IN 72W 350 M X IN 72W 350 M X IN 72W 225 M X IN 72W 075 M X HB NUT AIR M X HB NUT CO2 M X HB NUT N20 M X HB NUT NIT M X MAN 36 M X HB PTC AIR M X HB PTC CO2 M X HB PTC N20 M X HB PTC NIT M X HB PTC OXY M X HB PTS AIR M X HB PTS CO2 M X HB
7. PTS N20 M X HB PTS NIT M X HB WLBRKIT M X HB HPVLV A M3 LED DLCB M2 X POWER M3 X MAN SOLVLV www amico com 31 Appendix A Manifold Internal Layout Fuse 1 Amp Ga ci RR for e E dd LEFT BANK RIGHT BANK Vj y 6 In Use In Use KO 9 Ready Ready e Empty Empty 32 Amico Pipeline Piping Schematic Diagram Item Description Pig Tail check valve Cylinder valve TO High pressure inlet valve PIPELINE Pressure Transducer VENT TO DISTRIBUTION Operating pressure regulator OUTSIDE SYSTEM Check valve Line pressure regulator 2 Way valve Line pressure relief valve 10 Operating pressure relief valve 11 Bleed Valve 12 Operating pressure gauge 13 Pilot Regulator For Nitrogen CONTROL CABINET A LEFTHANDBANK _ Bo RIGHT HAND BANK CYLINDER PRESSURE aaa MY p t dea lt gt CYLINDER PRESSURE EZ C S 7 l gt lt Y 2 Z N PIPING SCHEMATIC DIAGRAM DUAL LINE REGULATORS NFPA f l I I l A SS Se Www PLAS LHP EAL I
8. Straight Header Bar Setup Appendix H Optional Header Bar Setup Appendix Standard Manifold Flow Rates Warranty Notes 19 20 21 22 23 24 25 26 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 www amico com 3 User Responsibility The information contained in this Installation and Maintenance Manual pertains only to the Amico Automatic Gas Manifold This product will perform in conformity with the descriptions contained in this manual when assembled operated maintained and serviced in accordance with the installation instructions provided The manifold MUST be checked periodically Parts that are broken missing worn distorted or contaminated must be replaced immediately Should such repair or replacement become necessary please contact Amico Corporation or their distributors For installing CO2 and N20 manifolds outdoors please refer to NFPA 99C Central supply systems for nitrous oxide and carbon dioxide shall be prevented from reaching temperatures lower than the recommendations of the central supply system s manufacturer but shall never be lower than 7 C 20 F or greater than 54 C 130 F All Manifolds should not be repaired or altered without prior written approval by Amico Corporation or it s dis tributors Failure to comply will void all warranty on the manifold Statements in this manual preceded by the words WARNING CAUTION DANGER and NOTE are of spe
9. and tools are kept clean and free of oil and grease Be careful not to introduce dust or other contaminants into the system when changing cylinders Failure to comply with the procedure may be hazardous WARNING Fire Hazard DO NOT permit smoking or any other source of ignition in area where the manifold is located or near the relief valve vent outlet Be certain that all connections are free of dirt grease and oil These substances burn with great intensity in air enriched with oxygen or nitrous oxide and some gas mixtures www amico com 29 Ordering Information DL Dome Loaded NFPA Manifold Cabinet M3D DL HH U GAS T_T The Word GAS Defines the Type A Analog D Digital of Gas HH High Pressure HHH Heaters Header Bar Assembly M2 HBYY XXU GAS U English NFPA Oxygen SC Nitrogen NIT Medical Air AIR Carbon Dioxide CO2 Nitrous Oxide N20 The Letters YY Defines the Type of Header Bar Assembly The Letters XX Defines the Number of Cylinders 2 x 2 use 04 4x4 use 08 TS Straight c w Stainless Pigtails TC Straight c w Copper Pigtails XS Staggard c w Stainless Pigtails XC Staggard c w Copper Pigtails Wall Bracket for Header bar Assembly M X HB WLBRKIT CONTROL CABINET PARTS LIST Pressure transducer for Oxy N20 Air CO2 amp Nit M2 X MAN 07B Line pressure regulator for Heavy Duty Manifolds M2 X MAN 42E L M2 X
10. pressure transducer on that side signals to the circuit board to switch the solenoid valve The solenoid valve then vents the dome bias pressure from the right bank regulator and di rects the bias pressure to the left bank regulator The Green LED In use on the right side goes out and the Red empty LED illuminates indicating a Reserve In use alarm with the Yellow LED on left going off and the Green LED being illuminated When cylinders on the right side are replaced and pressure is restored the right pressure transducer sends a signal to the circuit board which in turn cancels the remote switch over alarm and the Red Empty LED turns off and the Yellow Ready LED gets illuminated Since the left bank regulator has the dome bias pressure applied its output pressure is boosted to approximately 155psi The right bank regulator has no dome bias pressure and its output pressure is controlled only by base pressure 100 PSI All flow is supplied by the left bank of cylinders until the pressure drops to approximately 120psi the pressure transducer sends a signal to the circuit board causing a switch over to the right side in same fashion as previously described NOTE In the event of a power fluctuation or failure a switch over alarm will be activated on the master alarm panels e The solenoid valve will direct dome bias pressure to the left tank which is the default side if the right side is in use e Ifthe left side is in u
11. 4 Ensure the orientation of fittings direction of gas flow is the same on the replacement regulator Install fittings on new regulator 5 Inspect O ring removed from the ball valve union If damaged replace O ring 6 Verify the correct orientation of fittings on the regulator some slight adjustment may be required to align with the ball valves without causing stress to the fittings 7 Hand tighten the two ball valve union nuts and then with a wrench snug lightly to ensure the fittings are secure NOTE do not over tighten unions as it is an o ring seal 8 Open the ball valves and set line regulator s output pressure as described in Line Regulator Pressure Adjustment procedure www amico com 27 Control Board Replacement If necessary the control board replacement can be performed while the manifold is in service However this should only be done by qualified technicians experienced in servicing medical equipment 1 Removetwo top screws at the base of the display board bracket and bend the display board assembly back 2 Disconnect power supply 3 Remove the screws located on the circuit board which detaches it from the front plate Note orientation of the old circuit board and remove the wiring one at a time and connect each wire to the appropriate terminal on the new board 4 Install the circuit board and fasten the screws to secure it turn bracket up and then fasten the two screw at the base 5 Reconnect power supply
12. ING SCHEMATIC POWER SOL Right HP Left HP Power solenoid Transducer Transducer supply Valve 36 Amico Pipeline Staggered Header Bar H P BRASS PIPE 10 1 2 LONG 292mm 20 518 8 11 206 280 68 59 1727 1499 REF STANDARD 4X4 DOME MANIFOLD LAYOUT WITH STAGGERED HEADER BARS No of Cylinders Overall Length 2 11007 42 1067 12 86 2184 14 108 2743 No of Cylinders Overall Length 6 espe es ome 30 2154 16 108 2743 10 150 5502 O 130 3302 2 www amico com 37 Straight Header Bar Setup NOTE DIMENSIONS ARE BASED ON APPROXIMATE DISTANCES 20 518 8 11 206 280 Tr 68 1727 59 1499 REF STANDARD 2X2 DOME MANIFOLD WITH STRAIGHT HEADER BARS LAYOUT 38 Amico Pipeline Optional Header Bar Setup DIMENSIONS ARE BASED ON APPROXIMATE DISTANCES H P BRASS PIPE 1 1 2 LONG 38mm OPTIONAL 4X4 NFPA DOME MANIFOLD LAYOUT WITH STAGGERED HEADER BARS www amico com 39 Straight Header Bar Setup Amico Manifold Flow capacity 200 175 7 150 4 125 75 50 25 40 Amico Pipeline Pipeline Equipment MICO Warranty Policy Amico Corporation warrants its Medical Gas Pipeline Equipment to be free from defects in m
13. Operating amp Maintenance Manual Automatic Medical Gas Manifold Dome Loaded Regulator NFPA v1 1 OXYGEN Contents User Responsibility Introduction Features Description of the Manifold Shipment Details The Manifold Enclosure Header Bar Wall Support Bracket Manifold Display Board Description of Parts Main Line Source Valve Bank Regulator Pressure Transducers Check Valve Line Regulator Ball Valve Dual Line Regulator Pressure Relief Valve Pilot Regulator Solenoid Valve Front Panel Indicators Power Supply Control Board Gas Service Identification Header Bar Connections Operating Alarm System Display Functions Installation Wall Mounting Instructions Cylinder Bank Installation Instructions Testing for Leakage 2 Amico Pipeline Ov Ov OV A OV oO wW 0 00 00 00 0 N N NNN I gt O O O O 11 12 13 15 16 17 18 Initial Power Up Gas Flow Through the Manifold Manifold Switch Over Performance Verification Bank Regulator Pressure Adjustment Bank Regulator Replacement Line Regulator Pressure Adjustment Line Regulator Replacement Control Board Replacement Cylinder Changing Procedures Ordering Information Control Cabinet Part List Appendix A Manifold Internal Layout Appendix B Piping Schematic Diagram Appendix C Wiring Schematic Heater Units AppendixD Electrical Wiring Diagram AppendixE Control Cabinet Wiring Diagram AppendixF Staggered Header Bar AppendixG
14. When one bank regulator is supplied bias pressure the other bank s dome regulator s is vented to the atmosphere An electronic circuit board controls the solenoid valve based upon the input received from the right and left pressure transducer The solenoid valve directs bias pressure to the bank designated as primary Manifolds designed for 55psi nominal output pressure do not incorporate a Pilot regulator Full line pressure 55psi is routed directly to the solenoid valve which is used as dome bias pressure www amico com 21 Manifold Switch Over After electrical power has been applied to the manifold the side pressurized first is designated primary or In Use bank In order to simplify the following explanation we will arbitrarily select right side of manifold as primary bank The green In Use LED on the right side will be illuminated and the yellow Ready LED on the left secondary bank will be illumi nated The Solenoid valve directs dome bias pressure to the bank regulator on the right side If we use a 55psi oxygen manifold as an example the output of the right bank pressure regulator is approximately 155psi 100psi base pressure 55psi bias pressure The output of the left bank regulator is a approximately 100psi base pressure only no bias pressure Since the bank regulator on right side has the highest pressure all flow is supplied by right bank of cylinders As the cylinder pressure on the right side depletes the
15. anually set at a specific pressure similar to other diaphragm type pressure regulators In addition to internal adjusting spring bias pressure may be applied to the dome of the regulator adjusting spring side of diaphragm thus boosting pressure above what is manu ally set by the adjusting spring This output pressure boost will be approximately equal to the amount of bias pressure For example if a bank regulator is manually adjusted to 100psi via internal adjusting spring and a dome bias pressure of 55psi is applied the output pressure will increase to approximately 155psi 100 55 When the bias pressure is re moved the output pressure setting will return to 100psi Outputs of both the left and right bank regulators pass through check valves and connect together upstream of the dual line regulator assembly An intermediate relief valve protects components between the bank and line regulators in the event of a bank regulator seat failure The dual line regulator assembly consists of two line regulators plumbed in parallel with upstream and downstream isolation 1 4 turn ball valves Output of both the line regulators tee together and exit at the manifold s main outlet A line relief valve along with a line pressure gauge is connected to the manifold s main outlet Outlet pressure is then routed to a dome regulator reducing pressure to 55 PSI at the solenoid switch Solenoid switches 55psi dome bias pressure to one of the bank regulators
16. at steps 6 through 10 11 Apply Teflon tape reinstall the pipe quick connect adaptor on dome of bank regulator and reinstall nylon tube 12 Slowly open all cylinders on both manifold banks 13 Open main supply source valve www amico com 25 Bank Regulator Replacement Should it be necessary to replace the bank regulator it can be done while the manifold is in service However this should only be done by qualified technicians experienced in servicing medical equipment 1 Removetwo top screws at the base of the display board bracket and bend the display board assembly back for easy access to the union nuts that secures the bank regulator Follow label instructions 2 Close all cylinders on the side of the manifold where the bank regulator is to be replaced 3 Ensure that the service bank is the reserve secondary if not cycle the manifold from In use to reserve by using the circuit board control switch to vent residual dome bias pressure 4 Slowly break the 1 1 8 union s allowing gas to slowly vent out from both the inlet and outlet side of the bank regulator 5 Remove nylon tube from regulator dome 6 Install new regulator bank regulator May require slight adjustment to the fittings on the regulator to align with the secure fittings on the manifold 7 Tighten union nut on the inlet and outlet of the new bank regulator 8 Reinstall nylon tube 9 Close display board assembly and attach bracket with the 2 screws
17. aterial and workmanship for a period of twelve 12 months from the date of shipment Within this period Amico will repair or replace any part on site or at the factory which is proven to be defective at Amico s cost Furthermore Amico will warrant its material to be free from defect for an additional period of four 4 years five 5 years from the date of shipment Within this period Amico will replace any part at no charge which is proven to be defective Shipping and Installation costs after the 1st twelve 12 months will be borne by the Customer This warranty is valid only when the product has been properly installed according to Amico specifications used in a normal manner and serviced according to factory recommendations It does not cover failures due to damage which occurs in shipments or failures which resulted from accidents misuse abuse neglect mishandling alteration misapplication or damage that may be attributable to acts of God Amico shall not be liable for incidental or consequential damages resulting from the use of the equipment All claims for warranty must first be approved by Amico s Service Department service amico com or 1 877 462 6426 A valid Return Goods Authorization RGA number must be obtained from Amico prior to commencement of any service work Warranty work which has not been pre authorized by Amico will not be reimbursed www amico com 41 Notes 42 Amico Pipeline Notes www amico
18. cial significance Please read these sections carefully WARNING denotes steps which can prevent injury CAUTION denotes steps which can prevent damage to equipment DANGER denotes steps which can prevent electrical shock to equipment or to prevent serious injury and or death Amico Pipeline Introduction The Amico Automatic Gas Manifold is a one of its kind designed to provide a reliable uninterrupted supply of gas to a hospital or other medical facility The manifold utilizes multiple high pressure cylinders divided into two equal banks One bank is designated as a Primary source of gas while other the bank stands in reserve as a Secondary source A display of LED s on the front of the manifold indicates the status of the gas supply Each bank has a green IN USE yellow READY and red EMPTY LED When the primary bank of cylinders is depleted the manifold will automatically switch to the secondary bank of cylinders without interruption of gas flow to the facility The red LED will illuminate when a bank is depleted and two normally closed dry contacts for the reserve In use alarm will open One or both sets of contacts may be wired to an external alarm remote buzzer and or a building management system When replacement cylinders are attached to the depleted bank the red LED goes out and the yellow LED illuminates indicating that the bank has been automatically designated as the secondary supply No other user i
19. com 43 WWW amico com Amico Pipeline www amico com 85 Fulton Way Richmond Hill Ontario L4B 2N4 Canada Toll Free Tel 1 877 264 2697 Toll Free Fax 1 866 440 4986 Tel 905 764 0800 Fax 905 764 0862 NFPA ARR ISO UU us LISTED y APE INSTAL MAINT DL MANI v1 1 PRINTED FEB 12
20. correct refer to the Line regulator pressure adjustment procedure 19 Watch the pressure gauge readings on the left bank regulator and the supply line for at least five minutes to en sure the readings do not continue to increase 20 Close all cylinders on the left side of the manifold Depress the bleed valve slightly so that the left bank high pres sure gauge drops slowly Verify that the manifold switches to the right bank when the left bank high pressure gauge drops below the specified setting of the bank regulator 21 Verify only the right bank Green In use LED and the left bank Red Empty illuminates 22 Slowly open a cylinder on left side Verify that the left bank Red Empty LED goes out and the left bank Yellow 23 Ready LED illuminates 24 Open both the right side line regulator ball valves 25 Close the left and right side cylinders 26 Record the pressure readings of the left and right bank cylinder content gauges 27 Verify after 15 minutes the pressure reading on the gauges should remain the same 28 Slowly open all cylinders on both banks of the manifold 29 Using the switches on the circuit board switch the manifold to the bank of cylinders with the least pressure Reinstall the manifold control panel cover 30 Open the 3 4 source line shut off valve 24 Amico Pipeline Bank Regulator Pressure Adjustment This procedure should only be performed if the bank regulator pressures are no
21. eft bank red empty LED goes out e Left bank yellow ready LED illuminates e Left bank cylinder contents gauge reads cylinder pressure e If connected to a master alarm panel secondary supply alarm is not activated Close right bank cylinder Slightly depress bleed valve located on the side of the regulator Verify the following e Right bank cylinder contents gauge drops slowly As the right cylinder contents gauge is nearly depleted the manifold changes over to the left bank e After change over the right bank green In Use LED goes out and the red Empty LED illuminates After change over the left bank yellow Ready LED goes out and the green In Use LED illuminates Verify the line pressure gauge reading is acceptable Slowly open one cylinder on the right side of the manifold www amico com 19 Initial Power Up 11 Verify the following e Right bank red empty LED goes out e Right bank yellow ready LED illuminates e Right bank cylinder contents gauge reads cylinder pressure 12 Close left bank cylinder Depress valve located on the side of the line regulator Verify the following e Left bank cylinder contents gauge drops slowly e As left cylinder contents gauge is nearly depleted the manifold change over to the right bank After change over the left bank green in use LED goes out and red empty LED illuminates After change over the right bank y
22. ellow ready LED goes out and green in use LED illuminates 13 Slowly open one cylinder on the left side of the manifold 14 Verify the following e Left bank red empty LED goes out e Left bank yellow ready LED illuminates e Left bank cylinder contents gauge reads cylinder pressure e If connected to a master alarm panel secondary supply alarm is not activated 15 Close left and right side cylinders 16 Record pressure readings of left and right bank cylinder contents gauges 17 Wait 15 minutes 18 Compare current readings of the left and right bank cylinder contents gauges to those recorded in step 16 If there is a noticeable pressure change on either gauge perform leak testing described in Leak Testing 19 Reinstall manifold control panel cover 20 Slowly open all cylinder s on both banks of the manifold 21 Open 3 4 source shut off valve 20 Amico Pipeline Gas Flow Through the Manifold High pressure gas is provided to the left and right manifold bank inlets via cylinders pigtails and header assemblies Flow of high pressure gas through the left and right side of manifold is exactly the same each passing through a master valve located on the header and then directly to a bank regulator Bank regulators reduce incoming cylinder pressures to an intermediate pressure Bank regulators are referred to as a dome loaded type of regulator These regulators have an internal adjusting spring m
23. g items o Manifold control panel with power supply assembly o Wall mounting bracket attached to manifold control panel o 3 4 Source shut off valve o Installation Operation and Service Manual Additional cartons may contain appropriate number of headers and cylinder pigtail assemblies As standard header assemblies are configured so cylinder inlets are on 11 inch centers Cylinders may be placed in a double row staggered or single row Straight configuration Cylinder inlets closest to the manifold control panel are intended for cylinders placed directly beneath the manifold control panel Pigtails for gases other than oxygen and helium are 36 stain less steel flexible type Oxygen and helium pigtails are rigid copper and are pre bent to approximate shape for connection to the cylinders The manifold is designed to be mounted directly to a wall THE MANIFOLD ENCLOSURE The manifold enclosure contains a switch mode power supply that can handle voltage from 110 240 vac with a built in fuse and terminal block The enclosure on this manifold is NEMA 1 general purpose applications only This cabinet must not be mounted outdoors The manifold also has a latched door that is easy to remove The pre assembled circuit board is located on the center of the enclosure with a hinge mounting bracket This design will reduce installation time and eliminate the risk ofimproper installation since all the components of the manifold are con
24. he copper tubing since this may alter the sealing compound used in the threaded joints leading from the control cabinet 16 Amico Pipeline Testing for Leakage The following instructions apply for performing a leak test on the joints made during assembly and connection of the Amico manifold The connections inside the Amico control cabinet have been inspected at the manufacturing plant and DO NOT require leak testing In order to determine whether any leaks exist between cylinder Header bar sections or at the pipeline connections the systems must be pressurized using either oil free dry air or oil free dry nitrogen In the case of medical Oxygen Nitrous Oxide or Carbon Dioxide Amico manifolds the actual services gases ARE NOT suitable for leak testing due to their inherent dangerous properties Leak testing must be performed using either oil free dry air of oil free dry nitrogen In the case of either Medical Air or a Nitrogen Amico manifold the actual service gas may be used to perform the leak tests as follows o Connect a cylinder of the manifold service gas to each side of the header bar using the proper cylinder connection hose assemblies pigtails supplied o Make sure all other outlets are capped with the plug and chain assemblies supplied o Make sure that the high pressure inlet valves of each bank are fully OPEN o Slowly open the two cylinder valves on each side of the cabinet one at a time to pressurize the header ba
25. ine Pressure 55 PSI 100 PSI 170 PSI Intermediate Pressure Ready Bank 100 PSI 200 PSI 200 PSI 55 PSI 50 PS 50 PSI Intermediate Relief Valve 350 PSI 350 PSI 350 PSI Line Regulator Relief Valve 75 PSI 150 PSI 225 PSI Maximum Inlet Pressure 3000 PSI 3000 PSI 3000 PSI Intermediate Pressure In Use Bank 150 10PSI 250 10PSI 250 10PSI The intermediate pressure valve of the In Use bank is dependent upon the dome bias pressure Variations from the 55 PSI delivery pressure will affect the intermediate pressure reading Same as delivery pressure 18 Amico Pipeline 1 Initial Power Up Release the two latches on either side of the manifold control panel and remove the cover Verify the following Both master valves located on both header bars are turned fully counter clockwise open e All four line regulator isolation valves are open handles horizontal e Power supply has been connected Both red empty indicators on the front of the manifold are illuminated e If connected to a master alarm panel Secondary Supply alarm is activated Close 3 4 source shut off valve Slowly open one cylinder on the right side of the manifold Verify the following e Right bank red empty LED goes out e Right bank green in use LED illuminates e Right bank cylinder contents gauge reads cylinder pressure Slowly open one cylinder on the left side of the manifold Verify the following e L
26. lve 34 with a locking handle supplied with the manifold should be installed on top of the manifold connecting to the main supply line BANK REGULATOR A dome loaded single stage diaphragm type regulator Used to reduce incoming cylinder contents pressure to a lower intermediate pressure Bank regulator one for each bank of cylinders has an internal adjusting spring used to set a base pressure of approximately 100 PSI 200 PSI on Nitrogen manifolds Dome i e bonnet or bell of regulator is a pressure tight chamber When pressure is applied to the dome the amount of force applied is added to the force of the adjusting spring For example when 55 PSI of pressure is applied to the dome the 100 PSI base pressure setting is raised to approximately 155 PSI PRESSURE TRANSDUCERS Senses the bank pressure and transfers information to the display board to indicate the In use Reserve amp Empty mode There are two transducers in the manifold cabinet one for the left bank cylinder and one for the right bank cylinder CHECK VALVE Check valve is provided upstream of each bank regulator to prevent back flow while servicing a bank regulator www amico com 7 Description of Parts LINE REGULATOR BALL VALVE Quarter turn ball valves are provided upstream and downstream of each line regulator These valves allow for removal and servicing of one line the regu lator while the other is in use All four ball valves are
27. nd watch the indicator LED to ensure proper functioning The primary bank pressure should fall while the secondary and line pressures stays constant When the primary pressure falls to approximately 120psi for all gases except Nitrogen 220psi the bank switch over occurs the line pressure will remain constant with the LED display indicating the bank In use With the Amico Automatic Gas Manifold wired up to the Amico Master Alarm the changeover from primary to sec ondary supply will cause an audible alarm buzzer and the appropriate indicator LED on the Master Alarm will illuminate This can also be achieved by using the switch over test button located on the back of the control board Www amico com 11 Installation PRECAUTIONS o Tampering with gas specific connections shall be prohibited Do not alter remove or modify gas specific connections o Keep all manifold parts tools and work surfaces free of oil grease and dirt These and other flammable materials may ignite when exposed to high pressure oxygen or nitrous oxide o Do not use chemicals lubricants or sealants unless specified in these instructions o Before connecting cylinder to manifold momentarily open and close cylinder valve to blow out dirt and debris e After connecting cylinder to manifold open cylinder valve S L O W L Y to allow heat of compression to dissipate o Do not use flame or sniff tests for leaks o Do not apply heat to any part of the manifold system
28. nected and tested at the factory HEADER BAR WALL SUPPORT BRACKET The manifold can support at maximum a 5x5 staggered header bar While the straight header bar contains a wall support bracket on every second pipe in between each cylinder a standard staggered header bar has a wall support bracket in place after every 5 cylinders unless additional support is requested MANIFOLD DISPLAY BOARD The LED s on the front of the Manifold indicate that status of the gas supply The primary bank will indicate In Use with the green LED turned on and the reserve secondary indicating Ready with the yellow LED turned on or Empty red LED turned on depending on the status of gas When the primary bank of cylinders is depleted the manifold will automatically switch to the secondary bank of cylinders without interruption of gas flow to the facility The red LED will illuminate when a bank is depleted and two normally closed dry contacts will open One or both sets of contacts may be wired to an external alarm remote buzzer and or a building management system 6 Amico Pipeline Description of Parts When replacement cylinders are attached to the depleted bank the red LED goes out and the yellow LED illuminates indicating that the bank has been automatically designated as the secondary supply No other user interaction is required Both sets of dry contacts close to cancel any external alarm condition MAIN LINE SOURCE VALVE An isolation va
29. normally in the open position DUAL LINE REGULATOR On every Amico Automatic Gas Manifold the line regulator is capable of main taining a constant dynamic delivery of pressure at the maximum designed flow rate of the system For Oxygen Nitrous Oxide Medical Air and Carbon Dioxide service the line regulators are factory preset 55psi and for Nitro gen its 170psi PRESSURE RELIEF VALVE Pressure relief valves are installed downstream of all pressure regulators and are set at no more than 50 above the setting of the pressure regulator Relief valves are capable of fully relieving the pressure at the set point All pressure relief valves in the manifold have piping connections to allow for con nection of a vent line to the outside of the facility PILOT REGULATOR A single stage diaphragm type relieving regulator used to limit the amount of pressure provided to the domes of the bank regulator Used only on Ni trogen manifolds and manifolds with 100 PSI delivery pressure SOLENOID VALVE A 12 VDC solenoid assembly used to direct dome bias pressure to one of the bank regulators As dome bias pressure is directed to one of the bank regula tors dome pressure of the other bank regulator is vented through an exhaust in the solenoid valve 8 Amico Pipeline Description of Parts FRONT PANEL INDICATORS Six front panel indicators monitor the status of the manifold POWER SUPPLY The power supply is a 120 240 VAC 50
30. nteraction is required Both sets of dry contacts close to cancel any external alarm condition The power supply is connected to the top right hand corner of the manifold Connections from the manifold to Amico master alarm must be made from terminals marked C Signal to the appropriate terminals Reserve In use on the mas ter Alarm or a remote buzzer The enclosure for the manifold is NEMA 1 general purpose applications only and it is not recommended to be mounted outdoors The manifold has a removable front cabinet The pre assembled circuit board is mounted directly to the back plate of the manifold This design will reduce installation time and eliminate the risk of improper installation since each of the components of the manifold are connected and tested at the factory The Amico Automatic Gas Manifold is designed in accordance with the National Fire Protection Association NFPA 99 FEATURES INCLUDE e Input power to the manifold is 110 240 VAC 50 60Hz e Incorporates six LED s display readable in poor lighting conditions e Dual line Pressure regulators Single vent access from line amp operating relief valve e Wall mounting bracket attached to manifold for easy installation e Manifold complies with NFPA 99 www amico com 5 Description of the Manifold SHIPMENT DETAILS The Manifold system may be shipped in more than one carton depending on the number of cylinder connections The main carton contains the followin
31. r and pipeline o All outlets from the pipeline downstream of the manifold should be closed and thus there should be no flow from the manifold o Check for leaks at all cylinder extensions joints and at the joints where the pipes are connected to the pipeline using a commercial leak detector which is compatible with oxygen o If any leaks are found the system must be depressurized by bleeding through a convenient pipeline outlet and the faulty connections must be repaired o The Header bar connections may be tightened one more turn maintaining the horizontal location of the cylinder adapters or a further application of an oxygen service threaded sealant may be required o If the brazed pipeline connections leak they must be removed cleaned and then re brazed following the proper technique All repaired joints must be pressure tested as previously www amico com 17 Testing for Leakage Precautions The Amico Automatic Gas Manifold s are designed in accordance with the current revision of NFPA 99 There are three categories of the Amico manifolds depending upon the delivery pressure The following gas types are available for each delivery pressure 55 PSI Delivery Pressure o Oxygen Nitrous Oxide Medical Air Carbon Dioxide Helium Argon 100 PSI Delivery Pressure Oxygen Medical Air Carbon Dioxide 170 PSI Delivery Pressure o Nitrogen Instrument Air Delivery Line Pressure see NOTE above Delivery L
32. r bar assemblies to the inlet blocks on either side of the cabinet o Secure the Header bar assembly by tightening the union nuts onto the In let blocks The manifold can support a maximum 5 x 5 staggered header bar While the straight header bar contains a wall support bracket on every second pipe in between each cylinder for the staggered a support bracket is installed after every 4 5 cylinders unless additional support is required o Remove the plug and chain assembly on each of the outlet connections on the cylinder extension bar Attach the cylinder pigtails to the header bar connections while ensuring the check valves are operating in the proper direction WARNING To avoid contamination with particles or other potential hazardous materials keep pigtails in plastic wrapping until such time as connection to gas cylinder is planned When the medical gas piping system has been tested in accordance with NFPA 99 the manifold can then be connected to it The outlet pipes leading from the Amico control cabinet should be connected to their respective pipeline system connections The connection to the relief valves should be made with a union supplied by others to facilitate change if required An appropriate sealing compound that is suitable for the gas being transmitted shall be used for threaded connections WARNING If downstream joints near the cabinet outlet are to be silver brazed special attention must be given not to overheat t
33. re Verify the line pressure gauge reading If the pressure is not correct refer to the line regulator pressure adjust ment procedure Note the reading for later use Watch the pressure gauge readings of the right side bank regulator and the line pressure gauge for at least five minutes Readings may be slightly higher without vent flow but verify the readings do not continue to increase Close all cylinders on the right side of the manifold Use the bleed valve on the line regulator to slowly vent off pressure until the right bank high pressure gauge drops Verify the manifold switches to left bank when the right bank high pressure gauge drops below the specified setting of the bank regulator Verify only the left bank Green LED In use and the right bank Red Empty LED illuminates If the manifold is connected to a master alarm panel verify that the switchover alarm is activated Close the right side line regulator ball valves and open the left line regulator ball valves Slightly depress the bleed valve on the left line regulator to create a small flow of gas through manifold Verify the pressure gauge reading on the bank In use regulator to see if it is set up as per the specified pressure setting If the pressure is not correct refer to the bank regulator pressure adjustment procedure www amico com 23 Performance Verification 18 Verify that the line pressure gauge reading is same as in step 11 If the pressure is not
34. se the solenoid valve will continue to direct dome bias pressure until the bank depletes before the right side takes over e The solenoid will not prevent the flow from being supplied no matter which side is in use and until the system is completely out of gas 22 Amico Pipeline Ro do e A A A 10 13 14 15 16 17 Performance Verification Use following test steps to verify the manifold s functional performance Remove manifold cover Before beginning the test verify following If the manifold is not in use close the 3 4 source shut off valve Verify that the two right side line regulator isolation valves are open and the two left side line regulator isolation valves are closed As a starting point for this procedure set the manifold so right bank is in use If the right bank green LED is illumi nated proceed to the next step If the left bank green LED is illuminated manually switch the manifold to the right side by pressing the left switch on control board Verify that the right bank green LED IN USE and the left bank yellow READY lights are illuminated If the manifold is connected to a master alarm panel verify the manifold switchover alarm is not activated If the manifold is equipped with a pilot regulator verify the gauge on it reads 50 PSI Verify gauge reading for the In use right bank regulator If the pressure is not correct refer to the bank regulator pressure adjustment procedu
35. t within acceptable limits during perfor mance verification procedure or after installation of a new bank pressure regulator Base pressure setting is a mechanical adjustment controlled by the regulator s internal adjusting spring and without any dome bias pressure Recommended settings are listed on page 18 in the Table under the heading of Intermediate Pressure Ready Bank After the base pressure has been set the pressure will be increased by the amount of dome bias pressure applied 1 Shut off all cylinders on both banks of the manifold Close the main supply source valve Using the control board switches cycle the manifold from bank to bank to vent residual dome bias pressure Remove nylon tube then using a 9 16 wrench remove pipe quick connect adaptor from the dome of bank regulator s to be adjusted Depress bleed valves on both line regulators to relieve all pressure from the manifold ae di eS N Slowly open one cylinder on the side of manifold that needs adjustment For example if the right bank regula tor needs adjustment open one cylinder on the right side of manifold 8 Slightly vent off the pressure from the bleed valve to create a small flow of gas through the manifold Using a 7 32 Allen wrench through the hole of the dome bell set the bank regulator to the specified setting Intermediate Pressure Ready Bank 9 Close cylinder valves 10 Ifthe other bank regulator also needs to be adjusted repe
36. to the manifold cabinet 6 Checkthe correct operation of the circuit board by simulating a bank switch over a couple of times 28 Amico Pipeline Cylinder Changing Procedures 1 Keep the main bank valve open throughout these procedures Close cylinder valves on all empty cylinders Disconnect pigtails from cylinder valve outlets using an appropriate wrench Place protective caps over the cylinder valves of the empty cylinders and move them aside Remove protective caps of the full cylinders Visually inspect the cylinder valves for dust grease or oil Using a clean lint free cloth wipe each cylinder valve outlet clean Do not use your fingers tod eS SS Standing to one side crack the cylinder valve by briefly opening and closing them to blow out any dust Make sure they are pointing away from you and other personnel 8 Connect the pigtails to the cylinder valve outlets and tighten the nut with an appropriate wrench 9 Very S L O W L Y open the cylinder valve on the cylinder closest to the control cabinet Watch the bank pressure display on the front of the cabinet to make sure the pressure rises slowly to the full cylinder pressure reading Wait one full minute 10 Proceed to S L O W L Y open the remaining cylinder valves one at a time WARNING High pressure oxygen systems must be handled with CAUTION Spontaneous combustion may occur if oxygen came into contact with grease or oil Ensure that hands gloves clothing
37. top two control panel mounting bolts will slide 4 into slots of the bracket The bottom of the manifold control panel should be angled away from the bracket until the top two bolts have been inserted as shown in figure 2 Figure 2 NOTE A bracket mounting height of 61 1 2 1 562 1 mm from the finished floor to the bottom hole on the support bracket allows for adequate clearance beneath the manifold when utilizing standard H size or slightly taller cylinders 14 Amico Pipeline Wall Mounting Instructions The bottom of the control panel can then be positioned so that the holes at the bottom of the panel align with the holes in the hanging bracket Use 3 8 9 525 mm bolts to secure the cabinet to the bracket as shown in Figure 3 Figure 3 WARNING Do not attempt to lift manifold alone Two people are recommended in order to hang manifold onto wall mounting bracket CAUTION Do not use thread sealant on header or pigtail connections CAUTION Each header segment must be supported by a header bracket before additional header segment are added www amico com 15 Cylinder Bank Installation Instructions CAUTION This section contains important information necessary for proper installation of the cylinder banks Read it carefully before installing cylinder banks o Position the wall brackets if required to support the Header bars and bolt in place o Connect the two high pressure inlet valve heade
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