AT THE MRM / MRM II / PRM
1.
Confirm that the cable is moving freely in the corner pulleys and
the valve is in the cocked position.
2.
Thread the activation cable through the cable connector
(provided with the gas valve trip assembly).
3.
Install the red vinyl cap above the swaged ball fitting of the gas
valve trip assembly by threading the swaged ball fitting through
the small ¼” diameter hole in the rear of the vinyl cap.
4.
Join the swaged ball fitting of the gas valve trip assembly to the
cable connector. Once attached, push the red vinyl cap over the
end of the cable connector as illustrated.
WARNING:
IMPROPER INSTALLATION OF THE RED VINYL CAP
MAY CAUSE FAILURE OF THE GAS VALVE TO CLOSE.
TO TEST THE OPERATION OF THE GAS VALVE:
1.
a Disconnect and plug the actuation hose or piping
b.
Insert an Amerex P/N 12856 nitrogen cylinder or adapter fitting tool P/N 10895 and outside regulated
source of nitrogen into the MRM or PRM
c.
Pull on the manual pull station
d.
Confirm that the gas valve has closed
WARNING: ACTUATION NETWORK IS UNDER PRESSURE – PROCEED WITH CAUTION
2.
Relieve pressure in actuation network by using the vent check
. After all pressure is blown off,
slowly remove the nitrogen cylinder or turn off regulated N
2
supply.
3.
Reset the MRM or PRM
4.
Reset all accessory items.
5.
Install a fully charged nitrogen cylinder.
6.
Securely connect actuation hose or piping.
Do not over tighten pipe or pipe fittings into the MRM
or PRM pipe threads. Over tightening could cause the MRM or PRM to malfunction
.
7.
Reset the Mechanical Gas Valve.
8.
Remove all set-up tools from the MRM or PRM.
9.
Replace and seal the enclosure cover on the MRM or PRM.
10.
Replace and seal the cover on the mechanical gas valve.
WARNING:
THE MECHANICAL GAS VALVE AND ASSOCIATED COMPONENTS SHOULD BE TESTED
AND EXERCISED EVERY TIME THAT SYSTEM MAINTENANCE IS PERFORMED.
MAINTENANCE SHOULD BE PERFORMED AT INTERVALS NOT EXCEEDING SIX MONTHS.
FAILURE TO TEST THE MECHANICAL GAS VALVE AND RELATED COMPONENTS COULD
RESULT IN A TOTAL SYSTEM FAILURE DURING A FIRE INCIDENT.
December 2008
Section 4 Installation
Page 4 – 19
Amerex Restaurant Fire Suppression System (EX 4658)
5.
Draw the slack out of the cable.
Make certain that the piston component of the gas valve
trip assembly is pulled forward to its fully extended position.
6.
When all of the slack is drawn out of the cable, secure it with the set screws.
7.
Test the valve by pulling on the cable inside the MRM / MRM II / PRM until tension is relieved.
Confirm that the gas valve has closed.
8.
Secure all excess cable so that it is out of the way of any parts in the MRM / MRM II / PRM. We
suggest taping it to the gas valve cable.
