Pumping Modes

Duplex
In a Duplex mode, two pumps are used with one Stop Float and High and Low Alarms.

Triplex: High/Low Alarm
In a Triplex mode, three pumps are used with one Stop Float.

In a Triplex Pump Down mode, a High Alarm is the typical configuration with the Option Selector switches 1=ON (High Alarm) and 2=OFF (Low Alarm).

If a Low Alarm is desired, the alarm float must be moved to the position in the tank below the Stop Float and Option Selector switches must be 1=OFF and 2=ON.

In a Triplex Pump Up mode, a Low Alarm is the typical configuration with the Option Selector switches 1=OFF (High Alarm) and 2=ON (Low Alarm)

If a High Alarm is desired, the alarm float must be moved to the position in the tank above the Stop Float and Option Selector switches must be 1=ON and 2=OFF

Quadplex
In a Quadplex mode, four pumps are used with one Stop Float and no alarms floats.

Separate Pump Stop (SPS)
In the Duplex SPS mode, both the Lead and Lag pumps have their own stop floats.

In an SPS Pump Down mode, a High Alarm is the typical configuration with Option Selector switches 1=ON (High Alarm) and 2=OFF (Low Alarm).  If a Low Alarm is desired, the alarm float must be moved to the position in the tank below the Lead Stop Float, and Option Selector switches must be 1=OFF, and 2=ON.

In an SPS Pump Up mode, a Low Alarm is the typical configuration with Option Selector switches 1=OFF (High Alarm) and 2=ON (Low Alarm).  If a High Alarm is desired, the alarm float must be moved to the position in the tank above the Lead Stop Float, and Option Selector switches must be 1=ON and 2=OFF.