proto

outside stage:1 cool run cmd point

implements

cmd

Point is a command, actuator, AO/BO

cool

Associted with low temperature or cooling processes

outside

Duct to access fresh outside air for both ventilation and economizer

point

Data point such as a sensor or actuator

run

Primary on/off point of an equip especially used with a vfd

stage

Stage number of staged equipment operation such as coil or pump