View Full Version : Hi Condenser Differential Pressure

14-11-2014, 02:49 AM
Pls help everyone, ASAP,

We have two chillers here, the other one is ok, but the other one I think is getting bad.

This RTWD trane chiller's condenser differential pressure reading in Circuit #1 is higher than circuit #2.

Chiller 1
Condenser Differential Pressure circuit 1: 102.5 PSID
Approach temp. : 18.8F

Condenser differential Pressure circuit 2: 96.5 psid
Approach temp. : 15.9F

The other chiller is OK and they are both newly cleaned and the chiller's condenser approach temp emediately rises. I really wonder why.

Pls help..thank you...

14-11-2014, 10:43 AM
You don't say what DP gas pressure or water pressure
Either way though it don't sound right
Are you talking about the evaporator ?

A lot more info needed including all running pressures and temps for both gas and water circuits

The Viking
15-11-2014, 01:15 PM
First things first, you talking about less than 5% differential, this is well within the spec of the heat exchangers.

Your problem is likely to lay within the refrigerant circuit.
Time to call an engineer out to look at them.