O & M Manual IM05805020K
EATON LMR Plus
Effective September 2013
Electric Fire Pump Controllers
Pressure Settings -
Refer to Appendix D. Following are
the descriptions of each menu item:
Pressure Sensor -
Some applications do not
require a pressure sensor to sense the system
pressure in order to start the pump motor when
required. In order to accomplish this. The pressure
sensor can be disabled through this menu item.
Once disabled, the pressure start point, pressure
stop point, low pressure alarm, and high pressure
alarm set-points will be removed from the menu
system. Refer to 4.3 for the Pump Start input to use
instead of the pressure sensor.
Pressure Start Point -
The value programmed
determines at which pressure the controller will
initiate a start sequence.
Pressure Stop Point -
The value programmed
determines the pressure the system must reach
before the controller will automatically stop the fire
pump motor, via the running period timer. If the
system pressure does not exceed the programmed
Pressure Stop Point, the fire pump motor will
continue to run. (Auto shutdown only)
Low Pressure Alarm -
A low pressure alarm point
can be selected that will be recorded in the
controller's history.
High Pressure Alarm -
A high pressure alarm point
can be selected that will be recorded in the
controller's history.
Auto Shutdown -
The auto shutdown mode is user
selectable. If the auto shutdown mode is disabled,
the pump motor must be stopped via the local stop
pushbutton, whether or not the motor started via an
automatic start. If the auto shutdown mode is
enabled, the controller will stop the pump motor
automatically after all starting causes have been
returned to normal and the running period timer has
timed out.
Proof Pressure Switch -
An external pressure
switch will activate input # 1, terminal 40. This menu
item will only be active when the controller is
programmed for a Foam Pump Controller.
Low Suction Shutdown/Foam Level -
The
controller can be programmed to shutdown when a
low suction condition is present. If this is desired,
the user will select Enabled. There will also be a
shutdown delay timer built in (Range: 0-30 Seconds,
Default: 10 Seconds) along with the selection of
either a Manual or Automatic reset. If Manual Reset
is selected, the Ack./Alarm button on the faceplate
must be activated to reset the alarm. If an Automatic
Reset (default reset mode) is selected, a delay timer
(Range: 0-30 Seconds, Default: 10 Seconds) must
be set. The controller will then verify if the input is
still active, every time the timer times out. If the input
is still active the timer will reset and count down
again. Once the input has been removed, the timer
will start timing. Once the timer has finished timing,
out the controller will return to the automatic run
mode. When the shutdown delay timer is timing, the
time left on the timer will be displayed on the fourth
line of the display. When the controller is shutdown
on Low Suction, the display will read Low Suction
Shutdown. The display will also show the automatic
reset time delay when timing. Low Suction
Shutdown will not work on Local Starts, Remote
Starts, or Emergency Starts.
Pressure Deviation -
A pressure setting may be
selected, such that any change in pressure greater
than this setting, will record the pressure fluctuation
in the alarm memory.
Hourly Pressure Recording -
The controller can
be set so that it will take a pressure reading every
hour on the hour. If this feature is not required it can
be turned off by selecting Disabled.
Timer Values -
Refer to Figure #6. Following are the
descriptions or each menu item:
Run Period Timer (RPT) -
The run period timer is
used to automatically stop the controller after a
programmed time. It can be programmed to operate
based on either of two separate conditions, the stop
pressure point or when the pump has started to run.
If the RPT is programmed to start at the Stop
Pressure, the timer will start timing once the system
pressure has reached the programmed Stop
Pressure Point. If the RPT is programmed to start
timing once the pump is running then the timer will
start timing once the pump has reached a running
condition. If Automatic Shutdown is enabled, the
RPT will not be active. It will not start on Remote,
Local, and Emergency Starts. While it is timing the
amount of time left on the timer will be displayed on
the fourth line of the display.
RPT Start Mode -
The point at which the run period
timer starts timing is programmable. If it is
programmed to start timing after the pump has
started, the RPT will start timing once 20% of the
motor FLA has been reached. If it is programmed to
start timing once the Stop Pressure Point has been
reached, the RPT will start timing when the system
pressure has risen above the programmed Pressure
Stop Point.
ATTENTION
NFPA 20, SECTION 2-9.9, SPECIFICALLY
PROHIBITS THE INSTALLATION OF ANY DEVICE
IN THE SUCTION PIPING THAT WILL RESTRICT
STARTING OR STOPPING OF THE FIRE PUMP.
EATON CORPORATION ASSUMES NO LIABILITY
WHEN THIS FUNCTION IS USED.
