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MV & LV SERIES ENGINEERED DRY CHEMICAL FIRE EXTINGUISHING SYSTEM
OPERATION, DESIGN, & SERVICE MANUAL
REV C
Document # DOC324
Issued: April 26, 2018
Revised: March 22, 2022
UL FILE # EX27541
7.2.1 Pneumatic Actuation Piping 97
7.3 Recharging Agent Cylinder 98
7.3.2 Cleaning and Servicing The Valve Assembly 98
7.3.3 Recharge Procedure 100
7.4 Recharging Remote Nitrogen Actuation Cylinder 101
7.4.1 Removing The Nitrogen Actuation Cylinder 101
7.4.2 Servicing The Valve Assembly 101
7.4.3 Recharge Procedure 101
APPENDIX A - Safety Data Sheet 103
APPENDIX B - Assorted Charts & Worksheets 117
APPENDIX C - Auxiliary Parts 119
C.1 Legacy Components 120
C.1.1 Electric Valve Actuator w/o Supervision 120
C.1.2 Discharge Pressure Switch 121
C.1.3 Explosion-Proof Discharge Pressure Switch 121
C.2 Auxiliary Components 122
C.2.1 Explosion-Proof Pressure Switch, Manual Reset 122
C.2.2 Weather-Proof Pressure Switch, Self-Restoring 122
APPENDIX D - Alternate Nozzle Spacing Options 123
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