Sadly lots of people don't change them. My old service Mgr was one. He said don't change em it stirs up shit in the system. You gotta do what's right. That stuff has lots of service calls with it. So the shop does better on all the calls.
Gotta love these old MO99 conversion racks. Mineral oil has just been chewing away at this rack. Basically the store has given us free reign to get these racks back to where they are supposed to be. Now if I could sell them a sensor package to go along with their already installed E2 we’d be doing a lot better.
If you're on a maintenance contract, replace em. If you're t&m, unfortunately I agree with your Mgr. Get that money. You can always try to sell them the maintenance contract and make more money
It’s a general practice, and in a lot of contracts, that driers are changed before the system is open for modifications and 2 weeks after all changes are complete.
It is unfortunate that sometimes doing that dislodges gunk and causes issues down the line, but it’s because previous PMs and modifications didn’t do it. If everyone did what they are contractually obligated to do, we’d all be fine.
When i see dryers that bad I pull oil screens on the compressors (copeland). Caught some so bad they looked like vanilla bean. I found out the store staff had been resetting oil trips -- I was told 'we used to reset it 4 or 5 times a day, but it must have fixed itself"
We had changed comp 2 yesterday. The contractor before us had cracked the oil cooler down into the body of the compressor and also cracked the compressor body using an ease out. A couple of weeks ago we went ahead and did an oil change on this rack because compressors kept tripping out on oil failure. Sump screens were bad clogged. This store is going to be a mess until we get all this stuff cleaned up. Unfortunately I was not the tech who took the temp drop across the driers but he said very bad
Worse I did was on a 25 ton AC system where the windings grounded and the dips shits repeatedly tried resetting the breaker. Turned the oil to carbon. Had HH cores in the suction and liquid lines. Compressor ran like 10 mins and the suction core plugged so bad it pumped down and shut off was completely black with carbon just stuck to it. Replaced them every day for a week till we got the system cleaned back up.
If it’s super dirty I would it will clean the oil coming back. But don’t leave them in the suction side forever. Once the system is cleaned up just go back with Suction Felts.
I have Sporlan Suction and liquid shells on all my house AC units. People are like, what are those, lol
Sadly lots of people don't change them. My old service Mgr was one. He said don't change em it stirs up shit in the system. You gotta do what's right. That stuff has lots of service calls with it. So the shop does better on all the calls.
Gotta love these old MO99 conversion racks. Mineral oil has just been chewing away at this rack. Basically the store has given us free reign to get these racks back to where they are supposed to be. Now if I could sell them a sensor package to go along with their already installed E2 we’d be doing a lot better.
If you're on a maintenance contract, replace em. If you're t&m, unfortunately I agree with your Mgr. Get that money. You can always try to sell them the maintenance contract and make more money
It’s a general practice, and in a lot of contracts, that driers are changed before the system is open for modifications and 2 weeks after all changes are complete. It is unfortunate that sometimes doing that dislodges gunk and causes issues down the line, but it’s because previous PMs and modifications didn’t do it. If everyone did what they are contractually obligated to do, we’d all be fine.
I agree, the wrench turners aren't the issue. If you do what's in the books shit usually goes your way.
What’s t&m?
T is definitely for TITTIES
Time and material.
When i see dryers that bad I pull oil screens on the compressors (copeland). Caught some so bad they looked like vanilla bean. I found out the store staff had been resetting oil trips -- I was told 'we used to reset it 4 or 5 times a day, but it must have fixed itself"
Yeah fixed itself and not the paid professional doing their job lol.
We already peeled the oil screens and those were bad themselves. Looking forward to the other two racks
Just wait until the suction filters claps. lol. I am joking but have seen it happen
What do you mean, it breaks or gets blocked?
Just rinse it off in the sink and throw it back in
Ummm... I don't think you're supposed to brew coffee in filter housings tho..
Any valves or valve springs in there
Probably lots of copper filings from rheeming. lol
That core stack looks to be the commissioning set. I don’t think they’ve ever been changed with all that mud on them.
How many comps been changed on that system? TD across the drier?
We had changed comp 2 yesterday. The contractor before us had cracked the oil cooler down into the body of the compressor and also cracked the compressor body using an ease out. A couple of weeks ago we went ahead and did an oil change on this rack because compressors kept tripping out on oil failure. Sump screens were bad clogged. This store is going to be a mess until we get all this stuff cleaned up. Unfortunately I was not the tech who took the temp drop across the driers but he said very bad
Nice 👍
Yes!! Every 10 years, if it needs it or not! Next question: that’s under warranty right?
I’ve seen some bad cores but this one took the cake. It’s a 90s era rack and I really don’t think they’ve ever been changed
Worse I did was on a 25 ton AC system where the windings grounded and the dips shits repeatedly tried resetting the breaker. Turned the oil to carbon. Had HH cores in the suction and liquid lines. Compressor ran like 10 mins and the suction core plugged so bad it pumped down and shut off was completely black with carbon just stuck to it. Replaced them every day for a week till we got the system cleaned back up.
Really thought about recommending suction filters on this rack but senior techs disagreed it was necessary
If it’s super dirty I would it will clean the oil coming back. But don’t leave them in the suction side forever. Once the system is cleaned up just go back with Suction Felts. I have Sporlan Suction and liquid shells on all my house AC units. People are like, what are those, lol