DDC Control Loops

In this video we give examples of open and closed loop sequences of operation used in DDC systems. See how a Supply Air Discharge Temperature sensor works in a closed loop to maintain the supply air temperature set point. See how a Heating hot Water Temperature Reset schedule works with a Boiler to reset the hot water temperature based on the outside air temperature.

ONLINE COURSES:

ESTIMATING SPREADSHEETS

CONSTRUCTION PROPOSAL TEMPLATE

NEWSLETTER & YOUTUBE SUBSCRIBE

-------------------- SOCIAL -------------------

---------IMPORTANT VIDEOS TO WATCH----------

HVAC ENGINEERING and CALCULATIONS

CHILLERS and COOLING TOWERS

REFRIGERATION and REFRIGERANTS

HVAC SYSTEMS

ESTIMATING

HYDRONICS and PIPING

BUSINESS – CONSTRUCTION & CONTRACTING

CONSTRUCTION BASICS

ELECTRICAL and CONTROLS

VARIABLE REFRIGERANT FLOW

#MEPAcademy #HVAC #Engineering

[olegluzanov]

Greate video. Please make more videos on control logic. Thank you

[jlimg]

Please more videos on controls logics, thanks!

[brlinf]

basically the second example where it uses open loop, it predicts how much heat is needed, so if the reset schedule says that a lot of heat is needed, it will try to output higher temperature (makes sense because it would speed up the heat exchange in the coil further requiring less fluid and less pump usage)

[tahernabieh]

GREAT VIDEO THANKS A LOT FOR YOUR VEDIO

[brlinf]

"what's that"
"*discharge air temperature" 😂