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

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December 2008 Section 4 Installation Page 4 – 20
Amerex Restaurant Fire Suppression System (EX 4658)
INSTALLING AN ELECTRICAL GAS VALVE MRM, MRM II OR PRM
WARNING: CONFIRM THAT THE GAS HAS BEEN SHUT OFF AT THE SOURCE OF SUPPLY AND THAT
THE ELECTRICAL POWER HAS BEEN TURNED OFF BEFORE ATTEMPTING TO INSTALL
THE ELECTRIC GAS VALVE IN THE GAS LINE OR DO ANY WORK ON ELECTRICAL
WIRING. A QUALIFIED, LICENSED CONTRACTOR SHOULD PERFORM INSTALLATION OF
THE VALVE INTO THE GAS LINE. ALL ELECTRICAL INSTALLATION SHOULD BE
PERFORMED BY A QUALIFIED ELECTRICIAN ACCORDING TO THE INSTRUCTIONS
PROVIDED BY THE GAS VALVE MANUFACTURER. ALL WIRES SHOULD BE CLEARLY
TAGGED, THE SCHEMATIC NOTED FOR FUTURE REFERENCE IN THE PERMANENT JOB
FILE AND ALL DISCONNECTED WIRES MUST BE TAPED OR HAVE WIRE NUTS
INSTALLED.
Before beginning the installation of an electric gas valve:
For installation of the snap action switch see section labeled “Snap Action Switch Installation”. The electric gas
valve has specific limitations regarding its orientation on the gas line –
please refer to the manufacturer’s
instructions . Confirm that the valve is installed in the proper direction of flow according to the arrow on the valve
body and that wrenches are used in the proper manner.
Apply wrench to gas
valve hex flat only
1. Confirm that the gas has been shut off at the supply.
2. The tension bar in the MRM, MRM II or PRM is in the
“down” (relaxed) position.
3. The set up/lock out tool has been installed and that
the nitrogen actuation cylinder is not in place.
4. Install the gas valve into the gas line. If any strainers
are to be used, they shall be placed upstream of the
gas valve. Confirm that the valve is installed with the
correct gas flow direction as indicated by the arrow on
the gas valve body. Wrenches must be placed on the
valve at the point closest to the connection being
tightened and a “hold” must be placed on the valve
when fitting pipe downstream of the valve body.
DO
NOT USE THE GAS VALVE AS A LEVER FOR
TIGHTENING PIPE
. If pipe joint compound is used it
must be applied sparingly to the back male threads.
Pipe joint compound entering the gas valve could
cause the valve to fail.
5. Test the gas valve and connections for leaks using a
soapy solution.
6. Install necessary EMT conduit for connecting the
MRM / MRM II or PRM to an electrical gas shut-off
valve.
7.
See Section 3 for wiring schematic
.
MOVE THE TENSION BAR TO THE
"DOWN" (RELAXED) POSITION .