Rain Bird MDC2, Instructions Manual, Page: 119 / 124

Glossary
113
Glossary
113
Glossary
booster pump
activates when the demand for water pressure exceeds the capabilities of the master pump.
circuit board
one of the etched, copper clad sheets of insulating material onto which electronic components and terminals are
assembled. Controllers contain circuit boards.
controller
a device that sends a 24 VAC power signal to the field solenoid valves controlling when they open and close.
CPU board
the central processing unit circuit board inside the controller.
default setting
the start-up settings for the controller.
GPh (used in USA)
gallons per hour.
hardwire
communications cable used to transmit data between devices.
irrigation schedule
the watering Schedule for one of the Programs controlled by the controller.
liquid crystal display (LCD)
the illuminated display used on most controllers.
manual
requires user input, rather than being automatically performed.
master pump
main irrigation pump, controlled electronically, that supplies water pressure to the system. Not all systems
require a master pump.
master valve (MV)
an electrically operated valve located on the system’s main line that controls the flow of water to all other electric
and manual valves downstream of it.