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  1. Replies
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    Many Thanks Email address Please put your...

    Many Thanks

    Email address Please put your email address in your profile

    Thanks
  2. Replies
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    Need a manual for a Mycom Screw

    I have been searching (without luck) for a CPIII/E control panel for a Mycom 200VLD compressor.

    It's getting a little desperate as Mycom couldn't assist.

    Thank You
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    It's a 200VLD compressor, and the panel is a...

    It's a 200VLD compressor, and the panel is a CPIII/E which I can't find a manual for anywhere.

    Thanks
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    Mycom Control Panel

    Would anyone at all happen to have a a manual for Mycom CPIII/E screw compressor controller ? I have looked everywhere for one and Mycom here cannot help ?

    Thanks in advance.
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    Mycom Ammonia Screw Compressor

    I am trying to locate a service/teardown manual for a mycom screw compressor.

    Can anyone help ???

    Thank You
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    It's not 5000 run hours since this happened....

    It's not 5000 run hours since this happened. Maybe 2000 at most. I used to work for York until JCI took over them, but I never saw this happen before. It makes it even stranger because it seems to be...
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    There's no muffler, and the head pressure isn't...

    There's no muffler, and the head pressure isn't fluctuating. It's actually quite constant, only increasing as the compressor loads momentarily, until the cooling tower fan increases and keeps the...
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    843

    York LTHD Recip Chiller

    I've had the most bizarre fault with a chiller running J series compressors. One of the 2 circuits is making a high pitched humming resonating sound. It only happens at loads below 70%. I have tried...
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    Thanks appreciate the information

    Thanks appreciate the information
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    559

    I will have to look it up

    I will have to look it up
  11. Replies
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    559

    Trane TRM160CVH

    I have been searching all over to find the cooling capacity for a Trane TRM160CVH packaged unit. It's a 4 stage scroll machine and quite old (I would say about 1991) I can't find any information,...
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    Carrier 19XR

    Had a fault with one of these machines. The alert 162 is relating to high cooler approach which at near full load is around 8-10 degrees F (5-6 degrees C) the oil level looks low in the compressor as...
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    There was no internal relief in it.

    There was no internal relief in it.
  14. Replies
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    They are apparently inserted into the discharge...

    They are apparently inserted into the discharge near the manifold. Anyhow I tok a look at it today, the compressor isn't pumping, it looks like it's discharge reeds might be broken, and also it runs...
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    That was what I originally thought but no-one...

    That was what I originally thought but no-one thinks it needs it. They are talking about baffles and all sorts of things
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    York J Series Compressor

    Is there a likely cause that would cause vibration/resonance with one of these compressors on a chiller ? The original compressor was replaced with a reconditioned one, this is when the vibration...
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    I've got those ready and all the other bits SW220...

    I've got those ready and all the other bits SW220 etc. I have to say that being ex-Carrier I assumed it would be the same as the other 06N based chillers but this ones different (no drain on the...
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    There is a drain on the 30GX models. The...

    There is a drain on the 30GX models. The separator on the HXA has only relief valves. I was going to run at full load, then pump to 10psi, reclaim the rest, drain from the liquid line at the cooler...
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    I was going to leave it at 10 psi

    I was going to leave it at 10 psi
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    No I put the magic wand away. As long as I can...

    No I put the magic wand away. As long as I can remove the majority it should be OK. I think I am going to pump down if possible. drain the oil from the compressors, drain from the oil service valve....
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    Possibly. I think there's a check valve above the...

    Possibly. I think there's a check valve above the filter, so the compressors will still have to be drained seperately ?
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    How to do an oil change on a Carrier 30HXA

    Is there a "best way" to change the oil on a Carrier 30HXA (condenserless screw chiller). The condenser is a remote air cooled one. I have done them on the GX and XR/XL machines but not this one, as...
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    Controlling loading and unloading of chiller. I...

    Controlling loading and unloading of chiller. I haven't been there so I don't know anything else other than that. It would be using bacnet protocol, and it's definitely a centrifugal chiller. It...
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    York CX-TDC9E chiller controller

    Is there somewhere I can get a manual for the above chiller controller. Pre Millennium pad, on a YRRK or YRTK or similar.

    Thanks
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    York CX-TDC9E chiller controller

    I am trying to find a manual for this terminal controller. It's for an old centrifugal York machine (I think a YRRK or similar) pre millennium control panel. Would anyone be able to help out please....
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    Ammonia plant high liquid level

    Have an ammonia system shutting down due to a high liquid alarm in the surge drum. It is only there on startup, well for thfirst hour. Usually it gos out 2-4 times and I had to close the valve off to...
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    I do know that after the service was done, the...

    I do know that after the service was done, the eductor was left closed so all the oil pumped out. \This is open now but no oil return still. The scavenger line must be called something else here so...
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    York Centrifugal Chiller-No Oil Return

    we have some old R11 chillers in a big office building. One of them is causing problems as it is going out on low oil pressure and seems to have done so a few times over the last few months. The sump...
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    It was a condenser fan motor burned out on each...

    It was a condenser fan motor burned out on each of them. When the second stage tried to pull in, the HP switch was opening. Didn't help that the minimum fresh air setting was turned right up on the...
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    That's because I haven't been there yet. All this...

    That's because I haven't been there yet. All this information is taken from a job sheet from another technician.
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    Thanks alot. I managed to get most of the info by...

    Thanks alot. I managed to get most of the info by looking through old posts.
  32. Replies
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    Trane Rooftop DX Units

    Got three of these packaged units on a site. Two cooling stages in each. The place is hot inside at 82 degrees, but only one compressor is pulling in. I think there is fresh air intake as well, which...
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    Hi Mastercool The one thing I don't know is...

    Hi Mastercool

    The one thing I don't know is whether this situation has existed for some time. If there is an overcharge of refrigerant, then it will become apparent quite soon. If you say that the...
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    Hi Mastercool What you have there is a K...

    Hi Mastercool

    What you have there is a K control, system-should be running on R22. P8 on K control means that there is an abnormality in the outdoor unit. Changing the contactor will only work if...
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    Hi, The 2 fault codes you are getting are...

    Hi,

    The 2 fault codes you are getting are related to each other. The P6 code is generated because of a freezing or overheat protection in the pipe or on the evaporator or condenser coil. If the...
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    P6 means that the coil on the indoor unit is...

    P6 means that the coil on the indoor unit is running either too cold-less than -15 F or over 70F. In cooling mode, which I assume is the case at this time of year it will possibly be icing up. Most...
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    Hi Shaun, Thanks for the reply I've looked...

    Hi Shaun,

    Thanks for the reply

    I've looked everywhere for information on supermarket refrigeration. It's only the racks running multiple cases I'm interested in. I've been a commercial...
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    Is there anyone out there who can recommend me a...

    Is there anyone out there who can recommend me a decent book for supermarket systems-parallel racks and controllers. Can't seem to find anything decent right now.

    Thanks
    James
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    No beer for me still I'm on anti-biotics for the...

    No beer for me still I'm on anti-biotics for the next couple of days. I'll have a beer with you next time I visit Atlanta. By the way your website is good-I had a look earlier. We're just getting...
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    Hey Lusker Howd'you reply that fast. Are you...

    Hey Lusker

    Howd'you reply that fast. Are you still at work ??

    It isn't the voltage to the contactor. That's 238 volts. Here our voltage is 240. Thats why I mentioned the contactor going bad at...
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    Hi Lusker Here's an update for you. Went...

    Hi Lusker

    Here's an update for you.

    Went back today-didn't need the monkey wrench. Started all over again feeling well. Disconnected compressor and powered up. I put the original start cap back...
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    lusker i have to go out now, so will be in...

    lusker

    i have to go out now, so will be in touch in next couple of days
  43. Replies
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    Hi The UK ? Well it has it's good and bad...

    Hi

    The UK ? Well it has it's good and bad points. The bad point is probably the weather, wet winters and warm summers. At the moment there's political problems with the Iraq problems, and...
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    Hi Lusker Yes I,m in celsius. Funny thing is...

    Hi Lusker

    Yes I,m in celsius. Funny thing is all my gages are in F, because I buy them from a place in Waco TX when I'm out there, because the company I work for is in the US.

    I disconnected...
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    OK Feeling much better today. Ambient temp was...

    OK Feeling much better today.

    Ambient temp was 19 degrees in cellar and 17 outside. Looked on my comparator and saturation at this for 404 would give gage pressure 135psi.

    The compressor is not...
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    I foolishly went to have a look at a searle...

    I foolishly went to have a look at a searle cellar cooler today, with flu. I feel quite bad-sitting up in bed now.

    Problem is this. Unit tries to start, and cuts out. The guy said that the...
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    OK stop making me feel even worse !!!

    OK stop making me feel even worse !!!
  48. Replies
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    Anybody with any sense would get straight out of...

    Anybody with any sense would get straight out of the UK. The USA is like my second home. Everytime I'm over there I wish I was able to stay on, on the airplane back here it's depressing.

    No you...
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    In the UK, the average is 10 per hour-about $17....

    In the UK, the average is 10 per hour-about $17.
    The cost of living here is much higher. Gasoline $6 per gallon. 3 bedroom house about $300,000. The average guy makes about 25,000 or $40,000 +...
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    Icemeister Sorted out the supermarket rack,...

    Icemeister

    Sorted out the supermarket rack, one of the cases not maintaining temp. Simple enough problem, just had to get the evap fans to stop on defrost, and give the whole thing a check over....
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