Amerex 20150, Руководство по проектированию, установке, техническому обслуживанию и перезарядке

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WARNING: IS THE SET-UP/LOCK-OUT TOOL IN YOUR POCKET OR IN YOUR TOOL BOX?
THE SYSTEM WILL NOT FIRE IF IT IS STILL INSTALLED IN THE MRM
!
RESET PROCEDURES – PRM
Each time the PRM is fired the following procedures must be performed to accomplish reset:
1. Pressurize the Accumulator Cylinder to approximately 45 PSI (241 kPa)with compressed air through the
Schrader Valve. The Trip Plunger should extend.
2. Rotate the Spring Loaded Lever clockwise (“1” in Figure A), until its tip is latched under the Trip Plunger.
Resume pressurization of the Accumulator Cylinder to 80 PSI at 70
o
F (552 kPa at 21ºC). Leaks check
the fittings at both ends of the tubing. Re-make tubing terminations, if necessary.
3. Using the Amerex Cocking Tool, p/n 13341 in conjunction with a 3/8” drive socket wrench and extension,
re-cock the Collapsible Column (“2” in Figure A). This is accomplished by simultaneously pushing in on
the Lock Spring while turning the Cocking Tool counterclockwise. The mechanism should now appear
as depicted in Figure B.
4. Replace the Nitrogen Actuation Cylinder (P/N 12856).
August 2014 Section 7 Reset and Recharge Page 7 – 2
Amerex Restaurant Fire Suppression System (EX 4658)
9. Confirm that the swaged ball fitting of the gas valve trip assembly is pulled all the way out and that the
cable connected to the gas valve is properly attached using the cable connector and secured by the red
vinyl cap.
10. To reset the mechanical gas valve, disconnect the cable for the mechanical gas valve where it attaches to
the connector on the piston plug/gas trip assembly.
11. Go to the mechanical gas valve location, remove the cover, lift the valve stem and latch it open, reattach
the cable in the MRM / MRM II to the piston plug/gas trip assembly. Replace the cover.
12. To reset an electrical gas valve, the microswitches will transfer the contacts back to normal position when
the MRM / MRM II is cocked. The manual reset relay must be reset in order to open the electrical gas
valve.
13. To reset other auxiliary electrical functions, the same procedure as used for the electrical gas valve must
be followed.
14. Any alarm signals that are connected to a building fire alarm system can be cleared after cocking the MRM
/ MRM II and resetting the building fire alarm panel.
15. After all input and output functions have been restored or reset, insert a fully charged nitrogen actuation
cylinder, REMOVE THE SET-UP/LOCK-OUT TOOL, replace the MRM / MRM II cover and install two new
MECHANICAL GAS VALVES – DO ALL EXCEPT STEP 12
ELECTRICAL GAS VALVES – SKIP STEPS 9 THROUGH 11
FIGURE ‘A’ FIGURE ‘B’
TIP OF LEVER LOCKS FULLY
UNDERNEATH TRIP PLUNGER
SPRING LOADED LEVER
COLLAPSIBLE COLUMN