Couple of things to check, If your air bleed is above a ball valve, take the air bleed off and do it manually, assuming the air bleed is at the highest point in the system. Second.. Do you have a bypass in the loop and is it working correctly, 3rd, are your valves on your airside 2 way or 3 way?, this is important for flow regulation through your cold side. 4.. Are your Chilled water pumps on drives, do they have lead lag? Is there a delay on changeover? If on drives is your DP sensor working and accurate. These are all important to know for a proper evaluation of condition.

We don’t have air vents at the highest point but they can be added. There’s a manual bypass that’s closed right now. We do have a DP sensor we believe is working correctly but it is undersized. The pumps aren’t on drives or lead lag. There’s two way valves at the univents and air handlers. We’re trying to figure out if when they’re not calling and the undersized DP is affecting and lowering the flow rate. We’re a smaller facilities department at a courthouse so were trying to figure if there’s anything we can do on our end to keep from having to reset the chiller every couple hours since daiken is weeks out from service.