If LCW supply pressure drops below approximately 100 psi or LCW flow is interrupted the low-high pressure and/or low-high flow alarm will sound and the red indicators begin to flash. In this event it is recommended that the shunted test lines on the control racks and the HMS bypass lines be opened to help mitigate pressure spikes when service is resumed. When service is resumed the alarms can be rest by pressing on the indicator. If the bypass lines were opened they should be closed at that time.