Allied Chemetron 4000 Series Operation & Maintenance Manual

Allied Chemetron 4000 Series Operation & Maintenance Manual

Automatic switchover manifold

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4000 SERIES
AUTOMATIC SWITCHOVER
MANIFOLD
Operation & Maintenance Manual
MANIFOLDS ARE AVAILABLE FOR THE FOLLOWING GASES:
OXYGEN
NITROGEN
NITROUS OXIDE
Allied Healthcare Products, Inc.
1720 Sublette Avenue - St. Louis, MO 63110
Telephone: 800-444-3954 - Fax: 314-771-1806
Catalog No. S188-354-001 Rev. B
CARBON DIOXIDE
MEDICAL AIR

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Summary of Contents for Allied Chemetron 4000 Series

  • Page 1 4000 SERIES AUTOMATIC SWITCHOVER Allied Healthcare Products, Inc. MANIFOLD 1720 Sublette Avenue - St. Louis, MO 63110 Operation & Maintenance Manual Telephone: 800-444-3954 - Fax: 314-771-1806 Catalog No. S188-354-001 Rev. B MANIFOLDS ARE AVAILABLE FOR THE FOLLOWING GASES: OXYGEN CARBON DIOXIDE...
  • Page 2: Table Of Contents

    Table of Contents Subject Page Introduction Key Elements Manifold Operation Factory Settings Schematic Diagram Flow Charts Site Selection Installation Manifold Outline Method Of Operation Safety Features Remote Alarm Wiring Diagram Leak Test Ordering Information Repair Parts List Trouble Shooting 17-18 Limited Warranty Back Cover...
  • Page 3 WARNING ALL PRESSURE ADJUSTMENTS SHALL BE MADE BY AUTHORIZED PERSONNEL ONLY. INCORRECT PRESSURES CAN DISRUPT GAS DELIVERY TO LINE. WARNING THE MANIFOLD SYSTEM MUST BE LOCATED IN A WELL VENTILATED AREA. NITROUS OXIDE CAN CAUSE UNCONSCIOUSNESS AND DEATH. OXYGEN AND N2O AND CAN GREATLY INTENSIFY A SPARK OR FIRE.
  • Page 4: Introduction

    Manifolds may be obtained in these gas services as standard units. The manifold unit and header bar sections can be ordered complete by calling your Allied Sales Representative. Header bar sections can also be obtained by ordering the number and type needed to complete the manifold from the list on Page 15. NFPA requires at least the number of cylinders for an average twenty-four (24) hour day’s supply per bank, with a minimum of two cylinders per bank.
  • Page 5: Key Elements

    Manifold Key Elements SERVICE LINE PRESSURE LINE RELIEF OUTLET EXHAUST VENT LINE PRESSURE GAUGE CHECK CHECK VALVES(NOT VALVES(NOT SHOWN) SHOWN) LEFT LINE PRESSURE REGULATOR RIGHT LINE PRESSURE REGULATOR BALL VALVE PC BOARD SOLENOID VALVE LT. SOLENOID BANK VALVE RT. BANK POWER SUPPLY PNEUMATIC...
  • Page 6: Manifold Operation

    Key Elements 1. A pressure control manifold that maintains constant pressure to the pipeline and enables smooth uninterrupted switchover from the “in use” to the “reserve” cylinders. 2. A 115VAC 0.2 Amps / 230 VAC 0.1 Amps input, 5/15 VDC output power supply. Power supply includes dry contacts for local and remote alarm connections.
  • Page 7: Schematic Diagram

    WARNING ALL PRESSURE ADJUSTMENTS SHALL BE MADE BY AUTHORIZED PERSONNEL ONLY. INCORRECT PRESSURES CAN DISRUPT GAS DELIVERY TO LINE. Schematic Piping Diagram Schematic Piping Diagram...
  • Page 8: Flow Charts

    Flow Charts – 4000 Manifold 4000 SERIES MANIFOLD (ALL GASES EXCEPT NITROGEN) OUTLET PRESSURE SET AT 55 PSI Pressure - vs- Flow 15 20 25 30 35 40 45 50 55 60 65 70 Flow Rate (SCFM) 4000 SERIES MANIFOLD (NITROGEN) OUTLET PRESSURE SET AT 180 PSI Pressure - vs- Flow 15 20 25 30 35 40 45 50 55 60 65 70...
  • Page 9: Site Selection

    90%. If the humidity is high and the temperature is low, frost and/or ice could interfere with the performance of the regulators. Allied Healthcare Products, Inc. (Allied) includes a set of heaters as standard equipment with carbon dioxide and nitrous oxide control units that will preheat gas from the cylinders minimizing the frost problem.
  • Page 10: Installation

    If damage is discovered during the uncrating and assembly process, contact the freight carrier and make a concealed damage report within seven (7) days. Allied will assist the claims process as much as possible, but it is the responsibility of the receiver to file any claims.
  • Page 11: Manifold Outline

    Manifold Outline Approximate floor space needed to install manifold and cross header bar sets. Cylinder Overall Width Cylinder Overall Width 1 X 1 17 inches 9 X 9 73.5 inches 2 X 2 22 inches 10 X 10 94 inches 3 X 3 22 inches 11 X 11...
  • Page 12 CAUTION DO NOT APPLY HEAT TO DELIVERY LINE UNION WHILE IT IS CONNECTED TO THE CONTROL UNIT. HEAT WILL HARM O-RINGS, CAUSING LEAKS AND MALFUNCTIONS. Check for proper venting to atmosphere as required by job specifications and/or NFPA 99, If the manifold is installed in an enclosed area, the safety relief valves must be vented to the outside atmosphere.
  • Page 13: Method Of Operation

    Adjust as needed and tighten. Cylinder Pigtails Allied offers two styles of flexible pigtails: coiled copper (oxygen and nitrous oxide) and braided stainless steel (nitrous oxide and all other gases). Refer to the Optional Equipment Section or contact your Allied Sales Representative. The braided pigtail offers greater ease of handling the gas cylinders.
  • Page 14: Safety Features

    “Reserve” to “in Service”. Alarm Systems Allied Healthcare Products, carries a complete line of alarm systems which can be used in conjunction with the 4000 Series Manifold, to provide the required visual and audible signals, when bank switching occurs. For remote alarm electrical connection, use Electrical Wiring Diagram shown on page 13. The 4000 Manifold System, when used in conjunction with these alarm systems, complies with CSA Z305.1-M1984.
  • Page 15 Function Identification The bank LED’s and pressure gauges on the cabinet face are clearly marked to explain their function. The 4000 Series Manifold header bars are designed to assure that only cylinders containing the proper gas can be connected to them. All header bar connections and pigtails comply with CGA Standards. CAUTION DO NOT ATTEMPT TO RETROFIT THE CONTROL UNIT TO ACCOMMODATE OTHER GASES THAT THE CONTROL UNIT WAS NOT DESIGNED FOR.
  • Page 16: Remote Alarm Wiring Diagram

    Wiring Diagram TO LEFT BANK TO RIGHT BANK SOLENOID VALVE SOLENOID VALVE POWER SUPPLY DC POWER FROM POWER SUPPLY GREEN-GROUND WHITE-NEUTRAL GREEN LEDS BLACK-LINE MANIFOLD PC BOARD YELLOW TERMINAL LEDS BLOCK 115V AC-0.2A 230V AC-0.1A LEDS OUTPUTS 50/60 HZ AC POWER CONNECTION 2 #18 GA TO MASTER ALARM PANEL "RESERVE IN USE"...
  • Page 17: Leak Test

    Leak Test In order to determine whether any leaks exist between header bar sections or at the central pipe system connection, the system must be pressurized. Either oil-free dry air or oil-free dry nitrogen may be used for new installations. In the case of either a medical air or nitrogen 4000 Series Manifold, the actual service gas may be used to perform the leak tests.
  • Page 18: Ordering Information

    Ordering Information The 4000 Series Manifold has two (2) outlet (line) regulators and one (3) safety relief vent. The 4000 Series Manifold will shift banks automatically and will automatically reset when the depleted cylinders are replaced. MAIFOLDS: Catalog Numbers System 86-71-2100 Control Unit Only Oxygen...
  • Page 19: Repair Parts List

    Repair Parts List Catalog No. Description Qty. Per Kit 86-90-3041 High Pressure Relief Valve 86-90-3042 Line Pressure Relief Valve Nitrous Oxide, Carbon Dioxide, Medical Air & Oxygen 86-90-3043 Line Pressure Relief Valve Nitrogen 86-90-3001 High Pressure Hand Valve Oxygen 86-90-3002 High Pressure Hand Valve Nitrous Oxide 86-90-3003...
  • Page 20: Trouble Shooting

    Only some minor checks and repairs are recommended to be made in the field. Components removed from the manifold system for maintenance must be serviced, repaired and tested by properly qualified medical service personnel only. Original manufacturer’s parts, as supplied by Allied, must be used in the maintenance of manifolds.
  • Page 21 Trouble Probable Cause Remedy or Check Loose Regulator cap Tighten cap Leaking High pressure Regulator Regulator Diaphragm Leaks Replace Diaphragm Loose Regulator cap Tighten cap Leaking Low pressure Regulator Regulator Diaphragm leaks Replace Diaphragm Filter upstream of high pressure Remove inlet valve, inspect and clean Low Gas Flow regulator blocked filter.
  • Page 22: Limited Warranty

    Allied within warranty period of product purchased, that the product is found by Allied to have been defective at the time of such shipment, that the product has been installed and/or operated in accordance with Allied’s instructions, that no repairs, alterations or replacements have been made by others without Allied’s written approval, and that...

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