Control Panel Installation

ManualsBrandsLittle Giant ManualsSewage PumpsLittle Giant Duplex Complete Sewage System with 2 Pumps, 2 Check Valves, Control Panel, 3 Control Floats, Foam Basin and Steel Cover with 2" Vent and Discharge

Operations

SJE-Rhombus

Type 122 panels are designed to op-

erate with three or four ﬂ oats for pump sequencing. The

standard ﬂ oat functions are common pump stop, lead pump

start, lag pump start/alarm (three ﬂ oats), or separate lag and

alarm ﬂ oats (four ﬂ oats).

Three Float Operation: As the liquid level rises to the

stop ﬂ oat and tips it to the ON (closed) position, the panel

will remain inactive. As the liquid level tips the lead ﬂ oat,

the lead pump will start. If the liquid level tips the lag/alarm

ﬂ oat, the lag pump will start and the audio/visual alarm will

activate. Both pumps and the alarm will remain active until

the liquid level drops and the lag ﬂ oat is in the OFF (open)

position. At this time the alarm will silence. Both pumps will

remain on until the liquid level drops to normal and all three

ﬂ oats are in the OFF (open) position. When both pumps have

stopped running, the alternator will switch the lead pump and

lag pump operating functions in the next sequence.

Four Float Operation: The alarm will activate and re-

main on only if the alarm ﬂ oat is tipped to the ON (closed)

position.

Alarm System (Horn and Indicator - standard)

When an alarm condition occurs, a red light and a horn will

be activated. If the test/normal/silence switch is moved to the

silence position, the horn will be silenced. When the alarm

condition is cleared, the alarm system is reset. The alarm

system can be tested by moving the test/normal/silence

switch to the test position.

HOA Switch

A hand-off-automatic switch is provided for each pump. In

the hand mode, the pump will turn on unless other safety

features are employed. In the automatic mode, the pump

will turn on from commands by the ﬂ oat switch(es).

Pump Run Lights

The run light will be ON in either the hand or the automatic

mode when the pump is called to run.

Control and Alarm Fusing

The control circuit and alarm circuit are fused separately.

For information regarding the

operations of options not listed here,

or servicing questions

please call a SJE-Rhombus

customer service technician at

1-800-RHOMBUS

(1-800-746-6287)

Warranty void if panel is modiﬁ ed.

Control and Alarm Lights

Lights will illuminate when control/alarm power is supplied.

Float Status Lights

Lights will illuminate when the respective ﬂ oat is in the closed

position.

Circuit Breaker (optional)

The pump circuit has a thermal-magnetic circuit breaker

which provides pump disconnect and branch circuit protec-

tion.

Dry Auxiliary Contacts (standard feature)

Normally open - Contacts are open under normal conditions

and closed when alarm condition is present.

Normally closed - Contacts are closed under normal condi-

tions and open when alarm condition is present. Both types

automatically reset once alarm condition is cleared.

NOTE: Some options ordered may not be included in this

manual. Certain options will require alternative circuitry not

including ﬂ oat status and control/alarm indicators.

FIGURE 5 - Mounting clamp detail

FIGURE 4 - Float with cable weight