MPC-6000 / MPC-7000 / RND-2 INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1
INTRODUCTION
CONTROL UNIT LIMITATIONS
This control unit may not show an alarm condition without compatible initiating devices (smoke
detectors, etc.) and notification devices (horn, lights, etc.) connected to it. Electrical ratings of
the initiation and notification appliances must be compatible with the electrical ratings of the
control unit and must be properly interconnected. The wiring used for interconnection must be
large enough to carry the total current for all appliances without excessive voltage drop. The
RND-2 will not indicate alarm conditions without being connected to and configured correctly
on an MPC-NET2 network.
The control unit must be connected to a dedicated primary electrical source that has a high
degree of reliability and adequate capacity for this control unit. The only means of
disconnecting this power source shall be available only to authorized personnel and clearly
marked "Fire Alarm Circuit Control".
The control unit must also have connected to it a battery set (24V) that has enough capacity to
properly operate the system for 24 or 60 (depending on system type) hours standby and 5
minutes alarm per NFPA 72 (chapter 1). These batteries do lose capacity with age. Batteries
must be replaced when they fail to provide the control unit with the required standby and alarm
power or after 4 years, whichever happens first. These batteries must be checked for
performance at least two (2) times a year or more often if local requirements dictate.
Fire alarm control units cannot last forever. Even though this control unit was made to last for
the expected life of the fire alarm system, any part could fail at any time. Therefore a regular
test program should be followed and documented to make sure that each part of the system is
tested as in Chapter 7 of NFPA 72 or more often if dictated by local code requirements.
Malfunctioning units must be replaced or repaired immediately by factory authorized service
personnel.
This control unit is designed to show an alarm condition when the initiating devices
connected to it detect specific conditions. These conditions may or may not represent a life-
threatening condition. Also, evacuation of a building or area unnecessarily may subject
individuals to an unnecessary hazard. Therefore, it is most important that the building owner,
manager, or representative promulgate, distribute, and/or post instructions describing steps
to be taken when the fire alarm control unit signals an alarm condition. These instructions
should be developed in cooperation and conformance with representatives of the local
authority having jurisdiction.
As a backup or precautionary measure, it is strongly suggested that one of these steps should
be to notify the local fire department of an abnormal condition even where the DACT option (or
similar device) is included in the system.
