Figure below shows the schematic of the constant flow rate primary system.
Chilled water pump schematic diagram.
The water quantity used in chilled water systems is usually considerably higher than that used for heating because the unit coils work on smaller temperature differentials in the cooling mode than in the heating mode.
Covering chillers pump sets ahus risers primary and secondary systems cooling towers and bypass lines.
Gpm of chilled water all the three chillers pumps must remain on line to deliver 1200 gpm.
The 1 pipe system is poorly suited to chilled water distribution for several reasons.
So long all the ahus on the building distribution side are operational 2 x 300 tr.
Looking at the equation that governs heat transfer the capacity of a chiller is proportional.
Chiller type centrifugal fast absorbers slow chiller load min load no variance full load max variance system water volume more water more thermal capacitance faster variance allowed active loads near or far from plant typical vsd pump ramp rate setting of 10 minute accel decel rates set to 600 seconds 3377.
Before the design of any hvac system you need to see some previous design for a similar project i recommend looking at previous drawings for big consulting mep companies and follow their steps.