December 2008
Section 4 Installation
Page 4– 4
Amerex Restaurant Fire Suppression System (EX 4658)
INSTALLING THE PNEUMATIC RELEASE MODULE (PRM)
:
Select a suitable location for the pneumatic release module (PRM) that has access for installation, service,
recharge and where both the nitrogen actuation cylinder pressure gauge and the system status indicator can
be viewed. The PRM must be fastened to a surface that has sufficient structure to support the loads
anticipated. Knockouts are provided on three sides of the enclosure and each cable run may enter the
enclosure from any of the three sides (top, bottom or right).
Using the enclosure as a template, mark the top two holes for mounting and anchor the enclosure loosely,
adjust to level and mark bottom holes, anchor loosely using appropriate fasteners.
All installation wiring shall adhere to NFPA 70 (NEC) and all State and Local codes. Terminations of the snap
action switch are to be made outside the PRM Enclosure in an appropriate electrical junction box. Do not
install nitrogen actuation cylinder at this time or system may accidentally actuate.
INSTALLATION OF DETECTION NETWORK - PRM
The PRM has provisions for a single, continuous section of detection tubing. No splicing or “tee’s” allowed.
There shall be only two tubing terminations: one at the accumulator cylinder inside the PRM, and the other at
the opposite end of the tubing, with the use of an End of Line Fitting (p/n 16506).
The Amerex part numbers for tubing lengths are:
P/N
Length
P/N
Length
16557 25’
16579 100’
16551 50’
16552 150’
16556 75’
16554 300’
Tubing may be cut down to the required length with the use of Cutting Tool P/N 16860, or be coiled up and
secured with wire ties outside the hazard area. Cuts must be square and clean. The minimum bend radius is
6 inches (15.2cm). Do not crimp or crush the tubing in the course of handling or installation. A Tubing Clip
(PN 16501) is to be use to secure the tubing every 18” (45.7cm). A Tubing Clip is also required within one
inch of the End of Line Fitting. The tubing can exit the enclosure either through the 5/8” hole at the upper right
hand corner of the enclosure (where a strain relief fitting is installed at factory), or it can exit through the 5/8”
hole at the top right of the enclosure. If it is desired to route it through the top, switch the strain relief fitting
with the snap-in plug.
6” MIN. RADIUS
