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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
Section 4 System Installation
4.1 Mechanical Installation
Mechanical installation may be performed in conjunction with electrical installation or performed separately,
but both installations must be completed before the system is commissioned (Section 5).
Do not install the electric, pneumatic, or manual valve actuators until the system has been fully commissioned as
detailed in Section 5. Failure to comply could result in personal injury or death from violent cylinder movement
or over-exposure to high concentrations of agent.
4.1.1 Installing Cylinder Bracket Channels
To avoid accidental damage or wear to the cylinder assembly during the installation of discharge piping and
nozzles, the cylinder assembly should only be placed into position after those installations are completed.
Installation of the cylinder bracket back channels will suffice as a reference point for properly locating
discharge piping. e cylinder must be oriented so that the pressure gauge faces out.
The cylinder assembly must be mounted in a vertical position so its valve assembly is located at the top of the
cylinder. All cylinders for a single hazard must be stored at the same temperature.
Fasten the back channels securely to a rigid load-bearing vertical surface at the appropriate height. e
cylinder must rest on a surface capable of supporting the combined weight of the cylinder and agent.
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