What is Primary and Secondary Pump? Explained | Animation |

Primary Pumps
Location: Directly connected to the chillers themselves.
Purpose: Circulate chilled water through the chiller's evaporator, where heat from the building is absorbed, and then back to the chillers.
Flow Rate: Often designed with a constant flow rate to ensure the chillers operate at their optimal efficiency.
Types: Can be dedicated (one pump per chiller) or headered (multiple pumps serving multiple chillers).
Secondary Pumps
Location: Part of the separate chilled water distribution loop to the building.
Purpose: Distribute the chilled water from the primary loop out to the various air handling units, fan coil units, or other cooling equipment throughout the building.
Flow Rate: Designed with variable speed drives (VFDs) to precisely adjust flow as cooling demand in the building changes.
Control: Operate based on a differential pressure setpoint within the distribution loop, ensuring that there's a consistent supply of chilled water at the needed locations.
Two way valve and Three way valve detailed explanation.
• Two Way Valve and Thre...

[@hantuidola6648]

Thank you for information what about cooling tower operation?

[@mohamedyasar5351]

Thank you for your information,i need more video about HVAC like troubleshooting in package , outdoor dx AHU ,pump, motor,more about electrical and isolation rooms and cooled rooms systems

[@zebralearningsenglish-pn6fl]

Noted 📝

[@jawaunjohnson5514]

Low volt Wiring

[@zebralearningsenglish-pn6fl]

@@jawaunjohnson5514 Low volt wiring of Chiller???

[@rihansayed6125]

Thank you so much sir 🙏🏼

[@zebralearningsenglish-pn6fl]

Most welcome

[@vaibhavhcst]

Thanks

[@zebralearningsenglish-pn6fl]

Welcome!!!

[@jojo79726]

I have not understand the piping and secondary pump function.Explain it in more easy way with detail

[@Dizzyofficial2166]

return chill water and supply chill water are mixed in the header. Can you explain it?

[@zebralearningsenglish-pn6fl]

Return and supply chilled water are not mixing in the header.

[@Dizzyofficial2166]

@@zebralearningsenglish-pn6fl Thank you

[@BloominOnion1]

@@Dizzyofficial2166 He's not right. They do mix, and are supposed to mix, depending on fluctuations in the flow rates between primary loop vs secondary loop. Otherwise, the header pipe wouldn't exist!

[@mohsinkhan-bl7mc]

Thanks sir

[@zebralearningsenglish-pn6fl]

You are welcome 🙂

[@nihilnandhan559]

Can u tell me ESP and chilled water presssure calculation

[@zebralearningsenglish-pn6fl]

Noted External Static Pressure and Chilled Water Pressure Calculation.

[@valley0033]

Can you explain what is chiller condenser STD and HOP,LOP

[@zebralearningsenglish-pn6fl]

You are asking about Standard Temperature Pressure and Low Oil Pressure and High Oil Pressure?

[@lilbox7713]

00:02 Two types of pumps used in chiller plant: primary and secondary
00:29 Primary chilled water system uses only a primary pump.
01:10 Primary pump in HVAC system circulates chilled water from chiller to AHU.
01:45 Primary chilled water system less efficient than primary secondary system
02:16 Primary secondary chilled water system uses two pumps
02:49 Primary pump sends water to chiller for consistent flow
03:22 Primary and secondary pumps prevent water mixing in HVAC systems.
03:54 Primary and secondary pumps explained in HVAC system
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[@zebralearningsenglish-pn6fl]

😊👍