METRON MP430 Series, Manual

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start). Upon automatic start from this type of switch, the pump will be stopped either automatically after the demand switch
de-activates and Pump Auto Stop Timer times out, or manually at the Controller. Terminals #111 and #31 must have a
jumper installed if a remote Deluge switch is “Enabled” but not to be used. When the controller is shipped from the factory
Deluge Valve start is Disabled (System Config screen 121).
e. AC POWER FAILURE STARTING: If this feature has been enabled it can be tested by disconnecting the supervisory
power 115 V.A.C. to the Controller. After the preset time delay (which is specified in System Config screen 112), the
Controller will commence starting of the pump. The
"System Fault" LED will illuminate and the alarm will sound.
f. NORMAL OPERATION – AUTOMATIC: Press "Auto" mode button on OID. A green "Automatic Mode" light will
illuminate and the pump will automatically start upon drop in pressure or operation of other start switches. If the Auto Stop
Timer is disabled (Manual Stop) the pump must be turned off at the Controller. When the Auto Stop Timer is enabled, upon
termination of the demand signal, the pump will run for the length of time left on the Auto Stop Timer and then will stop
automatically.
g. AN ADJUSTABLE SEQUENTIAL START TIMER IS SUPPLIED FOR MULTIPLE PUMP INSTALLATION:
Normally, the leading pump Controller will not have a delay timer and will commence starting of the pump immediately
upon operation of a demand signal (other than Power Failure which is time delayed). The subsequent Controllers will have a
time delay which is adjustable from 0 to 999 seconds. Each time delay should be set with progressively longer times on each
subsequent pump. The recommended time interval is ten (10) to fifteen (15) seconds. This may be extended or shortened as
required by the local authorities having jurisdiction.
h. PUMP ROOM ALARMS: Field terminals may be provided for various inputs from pump room alarms. These alarms
include: Low Pump Room Temperature, Reservoir Low, Reservoir Empty, Low Suction Pressure, Relief Valve Discharge
and/or Flow Meter On etc. A maximum of twelve (12) (or nine (9) if a transfer switch is supplied), pump room alarms is
available. Each auxiliary alarm is configurable so that the alarm horn may or may not sound and the light will come on when
the alarm sensor contacts close. These pump room alarms can be silenced with the “Silence” push button on the OID if they
have been configured as silenceable.