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Consider the following when installing the system.

1.  Be sure to consider all factors when selecting materials.  
2.  Do not use oil or grease on fi ttings.
3.  Be sure that all fi ttings are secure and leak tight.  PTFE tape should be used on pipe threads. 
4.  If  constant pressure is required, a regulator will need to be installed.  If the regulator is not in 

combination with the Switchover system (such as with the 526/7 XX1X through XX7X), then a 
decision will need to be made as to where downstream after the Switchover system the regulator 
will need to be installed.

5.  Captured vent spring case:  The captured vent kit (550 0001) can be added to the 526 series as 

an ac ces so ry.  This vent kit is added to the spring case to redirect gas in the event of a di a phragm 
failure.  When installing the vent kit, be sure to connect suitable tubing from the vent kit fi tting to 
the safe discharge area.

Relief valve:  The purpose of the relief valve is to protect the autoswitch system and its com po nents 
only.  If there is pressure sensitive equipment downstream of the autoswitch system, it is 
recommended that a relief valve (534 Series) be installed in the line to protect this equipment. 

7.  Purge devices: These devices are op tion al.  Purge de vic es are used to re move toxic, cor ro sive, or 

fl ammable gas es from the cus tom er’s system to a safe discharge area.  This is particularly help ful 
when an in ter nal problem occurs (such as regulator malfunction).

8.  Pressure switch gauges:  These devices are optional.  Used in conjunction with a remote alarm, 

they provide a warning that one or both of the cylinder banks is about to be depleted.  The pressure 
switch gauges have a normally open switch.  When the indicated pressure is above the gauge set 
point, the switch is closed and will allow current fl ow in the circuit.  Refer to the instructions for the 
appropriate remote alarm for wiring instructions.

Inlet Gauge:  Red Tab Indicates 
Pressure Switch Setpoint

MAX POWER 10W, 10VA

SWITCHING CURRENT - 0.5 AMPS

(NON-INDUCTIVE)

Figure 2 - Location of Relief Valve

Relief Valve
(1/4" NPT Valve)

Summary of Contents for 526 **1 Series

Page 1: ...n High Purity Applications INSTALLATION AND OPERATION INSTRUCTIONS Before Installing or Operating Read and Comply with These Instructions Controls Corporation of America 1501 Harpers Road Virginia Beach VA 23454 To Order Call 1 800 225 0473 or 757 422 8330 Fax 757 422 3125 www concoa com April 2012 Supercedes August 2005 ...

Page 2: ...2 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 3: ...chover system If the system includes the optional remote alarm refer to ADI 5106 or ADI 8824 for installation and operation instructions The standard switchover system will maintain a variable line pressure within the values shown in the table below MODEL NUMBER OUTLET PRESSURE without Line Regulator 526 2X0X 35 95 PSIG 2 4 6 5 BAR 526 3X0X 65 135 PSIG 4 5 9 3 BAR 526 4X0X 160 235 PSIG 11 16 2 BAR...

Page 4: ...COA The user of this equipment shall have the sole responsibility for any malfunction that results from improper use faulty maintenance damage improper repair or alteration by anyone other than CONCOA or a service facility designated by CONCOA CUSTOMER ASSISTANCE In the event of equipment failure call CONCOACustomer Service Please be prepared to provide the model number and serial number of the eq...

Page 5: ...on their use such as flow rate and temperature requirements Store cylinders with valve caps screwed on and cylinders chained to a supporting wall or column Handle cylinders carefully and only with valve caps screwed on The cap will reduce the chance that the cylinder valve will break off if the cylinder is accidentally dropped or falls over The cap also protects the cylinder valve from damage to s...

Page 6: ... Information on the properties manufacture transportation storage handling and use of hydrogen 12 C G A Pamphlet G 6 Carbon Dioxide Information on the properties manufacture transportation storage handling and use of carbon dioxide 13 C G A Pamphlet G 6 1 Standard for Low Pressure Carbon Dioxide Systems at Consumer Sites 14 C G A Pamphlet P 1 Safe Handling of Compressed Gases in Containers 15 C G ...

Page 7: ...f valve is to protect the autoswitch system and its components only If there is pressure sensitive equipment downstream of the autoswitch system it is recommended that a relief valve 534 Series be installed in the line to protect this equipment 7 Purge devices These devices are optional Purge devices are used to remove toxic corrosive or flammable gases from the customer s system to a safe dischar...

Page 8: ...the threads to make a gas tight seal On stainless steel connections the thread sealant helps prevent the connections from galling together when tightening or loosening CONCOA uses PTFE tape on all of its regulator NPT connections Follow these rules when using PTFE tape Figure 3 Installation Bracket Inspect the NPT threads and if necessary clean the fitting to remove any dirt or thread sealant that...

Page 9: ...d of the pigtail The female NPT pigtail end will connect to the user s system If configured with a CGAconnection or international inlet connection the connection will be specific to the particular cylinder of gas to be used Some connections do require the use of a gasket Please note that the material of the gasket must also be compatible with the type of gas being used Be familiar with the type of...

Page 10: ... pressurize when the cylinder valve is opened 4 Keep the hand wheel or wrench on the open cylinder valve at all times to allow prompt emergency shut off 5 Inspect all connections for leaks and fix any leaks A leak detection solution may be applied to the connections if compatible with the application which indicates leaks by bubbling To further check for leaks or if the leak detection solution can...

Page 11: ...or on the primary side allows the regulator main valve to remain open Second when the cylinder is changed gas will begin to flow from the new cylinder stopping flow from the existing cylinder This means the existing cylinder may be partially empty After several cycles it is possible that the reserve cylinder may empty shortly after a switchover occurs Always remember to rotate the knob on the prio...

Page 12: ...of gas supply Outlet pressure Approximate gas usage SERVICE A unit that is not functioning properly should not be used It is recommended that all servicing be done by a service facility authorized by CONCOA Contact CONCOA Customer Service in Virginia Beach Virginia for systems still covered by the warranty For items not covered by the warranty contact the nearest CONCOA District Sales Office for a...

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Page 15: ...ne other than CONTROLS CORPORATION OF AMERICA or if the equipment has been subject to abuse misuse negligence or accident CONTROLS CORPORATION OFAMERICA s sole and exclusive obligation and Buyer s sole and exclusive remedy under the above warranties is limited to repairing or replacing free of charge at CONTROLS CORPORATION OFAMERICA s option the equipment or part which is reported to itsAuthorize...

Page 16: ...16 Controls Corporation of America 1501 Harpers Road Virginia Beach VA 23454 To Order Call 1 800 225 0473 or 757 422 8330 Fax 757 422 3125 www concoa com ADI 3166 G Certified ISO 9001 ...

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