Have you ran a diode check. Unplug the ct's from the board, put your meter on diode check, should be 1.5 volts or close between the pens for each ct. If not replace the module.
Type: Posts; User: Tranetek
Have you ran a diode check. Unplug the ct's from the board, put your meter on diode check, should be 1.5 volts or close between the pens for each ct. If not replace the module.
circuit reset is in the p1 menu
Some of you don't need to be working in this field from what I can tell
You can use a Trane TOL101 to check out a w7900. Comes with all connections and instructions for checking it out
I didn't know there was a York that wasn't loud.
Is it equipped with low ambient controls for the fans.
They need the model and serial number off the compressor. They can figure it out from there.
It isn't a flooded evap. The rest is correct.
Seems funny when I have had a problem like this it is either a design issue with the system or and something cause by installation. When THE REAL PROBLEM is found and made right it all goes away....
Don't put the relays on. Find the real problem and solve that. If you are running on the min. water flow and the valves close off and take away more flow you are going to continue to have problems....
Increase the temp. settings for your head pressure control and see if that helps. I've had to do that on several machines when the weather turns cold.
Originally Posted by jt8350
forgot to mention that fan cycling controls. was the suggestion of a trane tech from the local trane office.
He wouldn't be a tech at my office making suggestions...
Contact your local Commercial Trane Office. There is a replacement for this valve.
Chiller only has so many seconds to make a certain amount of diffenential pressure or it faults out. If you are not controling the amount of water at start up to get the head pressure up to make the...
People do this stupid crap because they don't know what they are doing and how the machine works. Learn now the machine operates and then figure out what the real problem is. Don't just put...
Oil temp is falling more the 4 degrees below sat cond. temp. Check all sensor for correct readings and check to ground. If there is any reading to ground you should change the sensor. You are more...
You are better off waiting until the chiller needs some work done and has
the ref. out of it.
Are there drives on the first fans of each circ. for head pressure control.
One of the first things I would do is drop the chilled water temp. 52 isn't going to dehumidify much of anything.
Sound like you are hearing alot of noise from the shorting contactor is that right? If so pull the front off the contactor and see if the ring has come out of the magnetic frame. If it has this...
They should be concerned. Starting and stopping like that is not good and if you lose the motor it may not be covered under the warranty because of the way it is being run. Next thing is who set it...
Find the correct service lit. and run a diode test
If it has a water cooled condenser then it is a CGWD
Sounds to me like you are addressing the wrong issue. You should be looking at what is causing the air to recirculate. What reason is there that the air is not moving away from the unit. You can...
Check your sensors for proper readings. Also check them for any reading to ground with a digital meter. If there is any reading to ground they should be changed. This can cause periodic trips.
Differential pressure switch should trip at 50 psid
Actually Trane does have a water cooled scroll unit. CGW* My question is, if you are having so much trouble with load swing on the chiller why not put in a storage tank and have it pump to the...
Check sat evap and suction temp sensors to make sure they are correct. You also need to check them to ground. If there is any reading to ground they should be changed. A grounded sensor can look to...
It is usually one of three things. Air, condenser water to hot or fouled tubes. Condenser approach should be no more then 3 degrees at full load. Have you checked to see if your purge is actually...
Sounds like it is rotating backwards for just a little until the check valve closes. The thud you are hearing sounds like the check valve closing.