chilled water system pressure
chilled water system pressure
(OP)
hi all ,
should the chilled water system (ie,20 floors tower ) be pressurized before running the circulation pumps ?
when the pumps are off ,the static pressure at the pumps suction and discharge is 9.5 bars .
should the chilled water system (ie,20 floors tower ) be pressurized before running the circulation pumps ?
when the pumps are off ,the static pressure at the pumps suction and discharge is 9.5 bars .





RE: chilled water system pressure
RE: chilled water system pressure
pressurization serves only to prevent underpressure on the top of the system, which would suck the atmosphere air, the lower you set it the better, given that you are certain that underpressure will not occur. for smaller systems it is common practice to design to zero, means equal atmospheric pressure, and during start-up fitter will make just tiny increase in setting.