Chiller to AHU Pressure Problem

[bibin777]

hi Friends.
i have pblm with my chiller to ahu Pressure
My Chiller Standing at 3rd floor CHWS 50 Psi Pressure. my ahu standing at basement floor.
actual way chilled water supply Psi + Gravity needed to b.f ahu return, but i am getting only 15 psi what is the pblm?. Please Help me..................

[Brian_UK]

1st problem, you are writing in shorthand, makes it hard to read and understand.

Loss of pressure could be due to:-

Is the pipe sizing correct?
Is the pump running?
Is the pump rotation correct?
Are all of the valves open?
Is the water clean?
Are there any blockages in the system?

[Bashir01219]

hi Friends.
i have pblm with my chiller to ahu Pressure
My Chiller Standing at 3rd floor CHWS 50 Psi Pressure. my ahu standing at basement floor.
actual way chilled water supply Psi + Gravity needed to b.f ahu return, but i am getting only 15 psi what is the pblm?. Please Help me..................

Measure AHU inlet and outlet pressure then it clear U what going on inside of the AHU cooling coil.
Then look at others option......

[frank]

You will always get system losses.

I would be more concerned if the flow rates weren't correct as this would lead to a loss of duty

[icecube51]

is this a new plant or an old one that has this trouble for the first time.

some more history will help us to understand the situation, and will give better possible solutions for youre problem.

Ice

[shaaf]

hello dear
you check ur waterpump inlet strainer. all valves.