S-Series Storage Tank Controls

Overview

The “S” series pump control panel shall be equipped with four solid-state low voltage liquid level relays to automatically control the storage tank’s water level. As water is removed from the tank, the liquid level will drop until it reaches the “Lead Pump On” (third from top) electrode. The lead well pump will activate and continue to run until the liquid level reaches the “Pumps Off” (second from top) electrode, at which time the pump will cut off. The control will then alternate the lead pump. If the liquid level continues to drop and reaches the “Lag Pump On” (fourth from top) electrode, the lag pump will activate, and both pumps will continue to run until the liquid level reaches the “Pumps Off” electrode again.

The panel shall be equipped with “Low Storage Level” and “High Storage Level” alarms. When the liquid level reaches the “Low Storage Level” (fifth) electrode, the audio/visual alarms will activate and be latched in until manually reset. If the liquid level continues to rise and reaches the “High Storage Level” (top) electrode, the audio/visual alarms will activate and be latched in until manually reset. The “Gnd” (sixth) probe is for reference purposes only.