There probably isn't a current imbalance, just a problem with the software. I always set the imbalance set point at 21 or higher when starting up a new chiller, and never have any more trips. I did...
Type: Posts; User: chilbrig
There probably isn't a current imbalance, just a problem with the software. I always set the imbalance set point at 21 or higher when starting up a new chiller, and never have any more trips. I did...
I believe the bad relays where in the old recip chillers. If you think you have a problem with the sensor just change it. The sensors can be a pain trying to check them out, and most the time it is...
If you are going to all the trouble of removing or transferring the refrigerant I would just replace the gasket. Should be fairly simple, but you will need three different gaskets, if the leak is...
I should have read further. Chev nailed it.
It is not unusual to see oil on new coils. Like GT said it's from the manufacturing process. Clean the coils with coil cleaner, then wait and see of the oil shows back up. If it does, then you...
So true, so true.
Closing down the ball valve is the recommended procedure.
You were told right, not much more to tell. Condensation getting into the VFD will send it to VFD Haven before you know it.
Dallas helps a lot of people when they can be helped. He's LOL because the IOM is all there is.
Budglo probably nailed it.
If you have a CR 1 relay I would try replacing it.
Good to know
Trane, York, McQuay, Carrier, they have all had outdated controls. Chillers are not like cars where they can make five million cars and trucks with the same electronic boards. If you might have...
28 psi isn't excessive and pressure doesn't determine flow. You need to get the pressure drop across the vessel and plot it on the flow chart to find out what your flow is. 3 to 4 psi drop isn't...
What is the 56 fault?
I read your question a little closer. You may have a problem with your slide valve. It may need to be rebuilt.
Most chillers that are designed for 44 degree chill water temp will trip, if you lower the water temp down to 40 degrees. If the chiller is a little low on refrigerant it will aggravate the problem.
Short cycle is usually caused by low load. You should have four to five gallons of water in the loop for every ton of cooling. The more water you have the better. If your loop doesn't have enough...
Any idea as to why the poor unit has foam all over it?
I have worked on a couple of old residential units that were Carrene 7. Both were not working because someone had put R-22 in them. As stated Carrene 7 was R-500.
If the chiller is still under warranty, I would call in Carrier and let them worry about it. There could be a problem with the drive, and the sooner you get the factory involved the better.
check the cooling fans under the starter.
To operate with a leaving chill water temp of 37 degrees you have to set the chiller up for brine in the controller. You also have to lower the low evap temp trip out down lower than 33 degrees. ...
Long shot: Check the terminals on the side of the motor barrel where the motor temp control wires hookup. See if they are corroded. Its worth a shot.
Do you have a remote sensor hooked up to the master chiller?
The toggle switch on both chillers should be set to remote. Local means turn on and will over ride any other signal or imput.
As licensed said you need a remote sensor mounted in a common chill water line. The master chiller is the master. When you turned it on it took over and will decide what needs to run no matter...
How many hours are on the machine?
Most likely the ISM
Don't worry about the design and the piping, it's fine. If the system has glycol in it make sure there isn't to much. Second I would change the liquid line filter drier and see if that solves your...
I had one doing that same thing one time. It turned out to be a control problem, and I
had to download a newer version of sortware. How old is the chiller? I would also get the level of glycol...
I used to work on an old ice machine, in a restraunt long ago. I would walk up to the ice machine and start kicking it until all the roaches stopped running out, before I would touch it. I can't...
Thats what I have seen in my area. I didn't think about a colder area where you probably don't need the tower.
If you have water source heat pumps don't you need the tower for the heat to work? Like Refrig John stated the tower is part of the system for both cooling and heating.
Make sure you do not have to much glycol in the water, no more than 30%. The less glycol the better the operation of the chiller.
This thread has gotten way to confusing.
That is a good looken chiller room.
Your right. Wasn't thinking on that one.
factory password is 1111
Had a leak on a York one time that no one could find. Went on for a couple of months and no one could find it. Then one day another guy was having a go at it with out much luck. He laid his leak...
I believe you will have to replace it. I have never heard of one being repaired.
You know, sometimes you have just got to stop and wonder. Are people who do things like that, really that damn stupid.
Don't know why your coil would be sweaten, but I bet you are over charged. 425 with only one compressor running is way to high. You can over charge very easily with a Micro Coil. IF you are...
If you have the old PSIO controls on that chiller you might not want to put any money into it. The replacement modules for the PSIO controllers are no longer avialable and an upgrade to the new PIC...
With the Micro coils the head will spike at startup then come back down to normal operating conditions. On a hot day it should not spike much over five hundred psig. If you must weigh in the charge...
If you have Micro Channel Coils, any restriction will cause a high pressure trip. Cut your drier open and see if a magnet will pick up the fiber filter material. If it does, get ready to change out...
There happy now. I found an old board made in 1985 that still worked. I'm guessing they called you to see if you could find one.
Where to get one. They have gone the way of the DoDo bird, and are no longer made.
Does anyone have access to a Micro Processor Board for 30GT. Part No. 32GB501074
and a Relay Board 32GB500004
I have drilled them out before. Not to hard, just don't get carried away.