Redi Controls RuptureSeal NRS-3 Installation, Operation & Maintenance Manual Download

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RuptureSeal

™

Model

NRS-3

COMBINATION...

Non-Fragmenting

Metal

Rupture Disk

Backup

Relief Valve...

Patent Number 5,644,930

...for use on Low Pressure Centrifugal Chillers

R-11 R-113 R-123

Manufactured in accordance with
ASHRAE Guideline 3-1990 Sec. 4.6
Flow Tested per ASME Standards

Redi Controls, Inc.

Installation Operation & Maintenance Manual

File Literature No. 1027-02

Summary of Contents for RuptureSeal NRS-3

Page 1: ...elief Valve Patent Number 5 644 930 for use on Low Pressure Centrifugal Chillers R 11 R 113 R 123 Manufactured in accordance with ASHRAE Guideline 3 1990 Sec 4 6 Flow Tested per ASME Standards Redi Co...

Page 2: ...ly as of May 1 1995 This Copy was Printed as of February 4 2005 1995 INDIANAPOLIS SPECIALTY VALVE INC IND PLS IN This product is marketed and sold by Redi Controls Inc under license from Indianapolis...

Page 3: ...igure 6 Double Check Pressure Equalizing Valve 10 Figure 7 Supplemental Support 10 Figure 8 Special Piping for R 123 Systems 10 Leak Testing Procedure 11 Annual Maintenance 11 Following a Rupture 13 S...

Page 4: ...to your equipment Warnings may appear in this manual or on the equipment Heed all Warnings Cautions are designed to alert you to situations that may result in damage to your equipment Personal safety...

Page 5: ...elief NOTE The RuptureSeal model number designates the size of the non fragmenting metal rupture disk incorporated in it s design i e the NRS 3 has a 3 non fragmenting metal rupture disk and is to be...

Page 6: ...th Drain Port line 37 to connect Valve Body water drain hole 24 to Drip Leg 31 A three inch 3 Female NPT Pipe Union 12 see Figure 2 on page 8 Supplemental support materials when applicable Typical Ins...

Page 7: ...omply with all applicable codes and standards Refer to ASHRAE Standard 15 1992 and equipment manufacturer s installation manual for rupture disk and relief valve vent line piping instructions Warning...

Page 8: ...he Double Check Pressure Equalizing Valve 22 MUST be mounted vertically with the filter vent 34 pointing up 3 Determine how much of the existing rupture disk vent piping will have to be removed to acc...

Page 9: ...ange Bolts and Nuts 45 NON FRAGMENTING Reverse Buckling Solid Metal Rupture Disk Cassette 24 Valve Body water drain hole 7 Valve Body 16 Calibration locking screws and seal Pressure Gauge The Tell Tal...

Page 10: ...ut on the chiller s relief stub see Figure 7 The installer shall determine the best way to provide such supplemental support Figure 7 Supplemental Support Chillers Utilizing R 123 special piping instr...

Page 11: ...pe plug in alarm port 35 and secure tightly Annual Maintenance Warning DO NOT TAMPER WITH WIRE AND LEAD SEAL DURING SERVICING Removal of wire and lead seal will compromise pressure relief calibration...

Page 12: ...alve is pointing up and is unobstructed The Double Check Pressure Equalizing Valve will function correctly only when in the vertical position The double check pressure equalizing valve 22 is provided...

Page 13: ...areful to prevent the rupture disk cassette from falling out of the valve 2 Remove spent rupture disk cassette and install new replacement cassette per installation instructions contact equipment serv...

Page 14: ...vaporator The measurement to the immediate right of the evaporator s diameter indicates the Maximum Length of the chiller vessel evaporator that the Model NRS 3 RuptureSeal valve can be installed on E...

Page 15: ...ls are used within 20 feet 6 1 m of a pressure vessel multiply the value of f by 2 5 REFRIGERANT VALUE OF f When used on the lowside of a limited charge cascade system R 170 R 744 R 1150 1 0 0 082 R 1...

Page 16: ...ed 270 degrees Valve Body rotated 180 degrees Rotate 3 Rotate 4 Horizontal Mounting Chiller Supplemental Support Supplemental Support RuptureAlarm Mounting Caution Regardless of mounting position of t...

Page 17: ...Gasket NRS 3 GAS 5 Four 4 flange bolts and nuts NRS BOLTS O Ring type sizes Valve seat O Ring Parker 2 146 V747 70 Valve body O Ring Parker 2 241 N674 70 Rupture disk cassette O ring Parker 2 241 N674...

Page 18: ...ions provided by REDI CONTROLS Failures of equipment due to abuse accident or negligence Damages from or part failures due to equipment not being installed per REDI CONTROLS instructions per applicabl...

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