ALT-DT-LA Control Panel

The ALT-DT-LA is designed to operate a duplex lift station with alarm. This
control can be used for pump up or pump down operation. The pump
operation is controlled by an Omron H3CRF8 repeat cycle timer. With this
timer the pumps can be operated from 1 second to 30 hours with
independent run and rest time settings. This is helpful when wanting to
move small volumes of water. The three floats are Timer Enable, Alarm,
and secondary pump On/Off float. This control is a duplex pump operation
and will alternate the pump load between both pumps. The control will
switch pumps at the end of every pump cycle so the opposing pump will
start on the next cycle. The alternating relay is switchable to lock the
pump load onto either pump so if one pump needs to be removed for
service or replacement the other pump will carry the full pump load.
This control panel will operate two 120VAC single phase 1⁄2 HP pump or
smaller. There are three circuit breakers in this control. Each pump will
have a 20 Amp single pole circuit breaker and the alarm uses a 10 Amp
single pole circuit breaker. The alarm is designed to be used with a float
switch. When the float switch closes, the 360 degree top mounted red
alarm light will come on and the Pizo electric buzzer will sound. This
control also has a latching alarm feature. This means when the Alarm float
closes the alarm will stay on even if the tank returns to normal level. This
alarm must be manually reset by turning the Alarm circuit breaker off, then
back on. There is an alarm test and buzzer silence switch mounted in the
door of the enclosure. This control is mainly used to pump sewage from a
septic holding tank to a treatment unit using a solids handling pump, or
pumping treated effluent water from a septic holding tank to the dispersal
area.
The enclosure has a NEMA rating of 4X which provides protection from
falling dirt, falling liquids, hose directed water and corrosive agents. The
12”x10”x6” enclosure is made of Polycarbonate and has a hinged lockable
door with latches and included screws to secure the door if required. All
electrical components are mounted inside the enclosure on an aluminum
back plate.