[D2L] 104E Building Control Systems Flashcards
Building control circuits can be pneumatic control or electronic building automation control
T or F
True
What does LAN stand for?
Local Area Network
Where is a unitary controller located typically?
Hidden in a cabinet
What does a VAV (Variable Air Volume) controller control?
dampers
What type of signal would a modulating motor use?
analog
Which of the following receives an analog signal?
1) Pulse Width Modulation
2) Variable Frequency Drive
3) Relay
4) Solenoid
Variable Frequency Drive (VFD)
What type of signal is a solenoid?
Digital
An Analog signal produces an on/off signal
False, only digital signal produces an on/off signal
3 common analog signals in BAS are (MULTI-SELECT)
1) 4-20mA
2) 2-10vDC
3) 0-10vDC
4) 0-24vDC
1) 4-20mA
2) 2-10vDC
3) 0-10vDC
Zone valves in Canada are typically
Normally Open
heating valve - normally open
cooling valve - normally closed
3 most common BAS protocols (MULTI-SELECT)
1) Modbus
2) LonTalk
3) BACnet
Which building control has the ultimate authority over all building automation function?
Fire Alarm
Pneumatic Sensors output a signal of…
3-15psi
What is the Supply Pressure for a 2 pipe controller?
20psi
Pneumatic Receivers have a relief set to 120psi
T or F
True
