1919 112TH ST SW 2024-02-27 - Laserfiche WebLink

• • • December 2008 Section 2 System Components Page 2.=-4 • Amerex Restaurant Fire Suppression System (EX 4658) • • = MECHANICAL RELEASE MODULE II(MRM II) • ., PIN 18000: MRM II with Red-painted Steel Enclosure • so - P/N 18001: MRM II with Stainless Steel Enclosure • o j&; The new MRM II combines the same features and ;�j functionality as the original MRM along with increased • O }A detection capabilities and a far simpler means of • I I _ - II setting the detection cable tension. The MRM II is aj available in the above configurations, now pre- • . I I o installed in its own enclosure. • 0 j The method of setting the detection cable tension on • I ! the MRM II does not require the use of any tools(once • I the cable is locked down into the large, knurled wind- up spool). A large lever to the right of the spool is • II used to increase the cable tension. Alignment of the • i I bottom edge of the lever with markings on a label on ! the mounting plate indicates when the proper tension • i1 has been achieved. In addition to being easier to set up, lowering cable tension to change out detection • links is now also much simpler. The enclosure is 10" • Wide x 5" Deep x 11 %" High. • • MECHANICAL RELEASE MODULE II -(P/N 11977) • WITHOUT AN ENCLOSURE SPRING CAN• NOTE: This version of the MRM II is a direct replacement for MRM N up • the old style MRM. It carries the same part number as the r,1 • original MRM. �� 9 DOWN • The Mechanical Release Module II is used to actuate the agent t o d cylinder discharge valve either automatically or manually byI • puncturing a nitrogen cylinder. ♦, 6 �l • Automatic release of agent is accomplished when a fusible link I 4I • detector separates during a fire condition. This causes a spring- I 1 J • loaded plunger to perforate the rupture disc and releases nitrogen �? �' through the actuation hose/piping network to the agent cylinder 1 • discharge valve(s). a �' ° / • 7"e Manual release of agent is accomplished by pulling on a manual � �° • � pull station which is connected to the Mechanical Release Module • II by a cable. 0 • The Mechanical Release Module II is equipped with two snap • action switches, one (P/N 12524) for electrical signaling, power shutdown and other auxiliary functions and a second (P/N 18312) • alarm initiating snap action switch for connection to a fire alarm • -"c ,„, , panel. An additional two snap action switches may be added. !irr"%r • Operation of one or two mechanical gas valves may be • accomplished by adding a Gas Trip Assembly(P/N 12740). • The cable for the gas valves, manual pull stations and detection network Gas Trip Asy-12740 ^" • may be attached to the MRM II from ether of two sides (top or bottom). •