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123-652 Rev -
If there is a High-Temperature, Low-Pressure or an Auxiliary Discharge sensor switch connected to the PS2 terminals, when
the sensor switch opens, the alarm activates and both the PS2 LED on the unit and the Second Zone LED on the Display
Panel illuminate. There will be no change to the relays’ state. The activated PS2 circuit alarm can be silenced by pressing
the SILENCE button on the MSRS box or on the connected Display Panel. Reset the unit after the PS2 circuit condition has
been remedied by pressing the SHUTDOWN RESET buttons. The unit is now in standby mode.
3
MSRS INSTALLATION
CAUTION: Make sure all power sources are shut down before installation.
Install the MSRS unit in a conveniently accessible and well-ventilated location. The MSRS should not be exposed to environmental
temperatures (in excess of 54
o
C/130
o
F) for an extended period. This will affect the service life of the MSRS unit and may cause
premature failure.
3.1
Installation Location
It is important that the MSRS unit be installed in a location that will not build up heat or be exposed to external heat sources.
If installed in a box or cabinet, the enclosure should have sufficient ventilation.
When installed in the engine room, the MSRS should be installed with sufficient protection from the hazards of that space,
but must still have a way to dissipate heat and not be overheated by other sources.
WARNING: Do not install the MSRS Unit in a sealed enclosure.
3.2
Mounting the MSRS Unit
Use the MSRS unit 4 mounting screw holes (screw not included) to mount the unit. Connect the Display Panel to the MSRS unit via
the RJ45 socket using the CAT-5 cable. Longer CAT-5 cables (10’, 20’, 50’, 100’ and 150’) are available to increase the distance
between the MSRS and the Display Panel. Refer to the Display Panel installation manual for the correct installation instruction.
3.3
MSRS Unit Wiring Installation
Use a minimum of 16 American Wire Gauge (AWG) (SAE J3788 or J1128) according to American Boat and Yacht Council (ABYC) [or
equivalent international standard] marine grade wire to connect all devices and power to the MSRS. Connect the wire to the MSRS
unit by pushing a 1/8” flathead screwdriver into the square opening on the top of the terminal block. This opens the spring cage
allowing a stripped wire to be installed into the round hole on the connector. See Figure 1.
Figure 1 Terminal Block Slot
Properly ground all the Machinery connected to the MSRS unit.
Summary of Contents for 131-740
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