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  1. Your right it could just be a little thing and a...

    Your right it could just be a little thing and a new controller a big job. It just reminded me of a job I have done recently where a simpler controller resolved nuisance trips. Let's hope he sorts it
  2. If the chiller will run fine for a week- there is...

    If the chiller will run fine for a week- there is nothing wrong with the chiller. The controls are finicky and don't work. The controls are the problem

    Why not rip all the wires out of the panel...
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    Supermarkets in the UK where on R404a now R407f...

    Supermarkets in the UK where on R404a now R407f some of them are going onto CO2 but it is hard to find good experienced guys like you to work on their plant. Wish everyone was a cleaver as the folk...
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    Hi heatingman We've still got all the juicy...

    Hi heatingman

    We've still got all the juicy big plants over here too: I've just recovered nearly 17,000kg into 40 430kg recovery cylinders at a food processing plant so the pipe welders can modify...
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    Yeah- the little units over here are moving to...

    Yeah- the little units over here are moving to flammables too. The camper van thing- I think they are absorption machines- where heat is used to work the process
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    Thanks for your responses guys! A similar picture...

    Thanks for your responses guys! A similar picture over here but ammonia is getting more popular. I went over to meet a chiller company in Denmark- ammonia is very popular over there even to cool a...
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    Sorry, that link should have been...

    Sorry, that link should have been http://www.maximuschillers.com/industrial-refrigeration/
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    Industrial Refrigeration Service

    Hi All

    I the UK industrial refrigeration service has previously been carried out on very large plant containing tonnes of anhydrous ammonia. Now, with the phasedown of HFC refrigerants, this...
  9. Thread: oldie

    by Chiller Man
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    Hi Stan- hope you are still busy I thought I...

    Hi Stan- hope you are still busy

    I thought I worked on some old bangers!

    Someone from an English ammonia company told me they built an ammonia refrigeration plant back in 1780, on a ship down...
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    Nice!

    Nice!
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    Nice to here your advice Patpinet- that's...

    Nice to here your advice Patpinet- that's generally how we do things over here
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    For DX use R407c and change the oil For flooded...

    For DX use R407c and change the oil
    For flooded systems use R134a and change the oil
    The thing with R422d and other drop ins is poor oil return. However, if you have high mass flow rate (it runs on...
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    Frigg it

    Frigg it
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    York ISN Reset Procedure

    Hi Folks

    I've been lurking around here for a while now and this is my first post. Hello to Jay, Randy, Healey and Stan- I read your stuff quite a bit

    I am doing a leak on a York Chiller and I...
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    York ISN Reset Procedure

    Hi Folks

    I've been lurking around here for a while now and this is my first post. Hello to Jay, Randy, Healey and Stan- I read your stuff quite a bit

    I am doing a leak on a York Chiller and I...
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    Hi Stan I used to use Johnson Controls for...

    Hi Stan

    I used to use Johnson Controls for £190 Now I use Electro Controls, ELF 2 for about 60 quid- available from the Climate Centre
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    High Evaporator approach- dirty tubes?

    High Evaporator approach- dirty tubes?
  18. There are chemicals sold by a company called F&R...

    There are chemicals sold by a company called F&R Products in the UK, they can ship to the US no problem. Tell them your symptoms and approx. volume in the system and they will put together some...
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    The thing about 29, 99 or any other drop in, I...

    The thing about 29, 99 or any other drop in, I find, is poor oil return. They are all attempts at a quick fix and don't work very well. I have seen 29 work in some chillers- I think the high mass...
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    hahahahahahahaahha I felt like saying: set it on...

    hahahahahahahaahha I felt like saying: set it on fire! but it is already doing that for itself!!!!
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    You're right- I confused myself !!!

    You're right- I confused myself !!!
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    Take the end plate off (the one without the...

    Take the end plate off (the one without the fridge pipework on) That chiller is DX so all the pellets will be all around the outside of the tubes

    Those evaporators are expensive so the high labour...
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    I agree with Chev5372 We did one that hadn't been...

    I agree with Chev5372 We did one that hadn't been pushed all the way back and seats
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    Let's see: Quantity of heat=M (Mass: one kg of...

    Let's see:

    Quantity of heat=M (Mass: one kg of water is 1ltr) x C (Coefficient: the specific heat of water is 4.19) x Delta T

    Take a pressure drop across the evaporator eg....
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    Locktite 275 is the bees knees. It has to be used...

    Locktite 275 is the bees knees. It has to be used on metal to metal, the thread cleaned up with a wire brush and de-greaser and if the ambient is below 15 degrees you need Locktite Activator to get...
  26. Thread: Cold Traps

    by Chiller Man
    Replies
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    714

    There was another thread about this with...

    There was another thread about this with companies that sell them. Have a search
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    An 8 fan chiller is exactly 500kw and two of...

    An 8 fan chiller is exactly 500kw and two of these is 1mw (give or take a gallon of pudding or two)
  28. Thread: Time

    by Chiller Man
    Replies
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    1,677

    We used to get a day for a centrif and half a day...

    We used to get a day for a centrif and half a day for air cooled. Whatever the problems and however many systems on the air cooled. It's to do with what the customer is quoted for and making it...
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    You'd have to slide it into the room to work on...

    You'd have to slide it into the room to work on (hopefully without falling out the window haha)
  30. I thought they where going to drop it- but they...

    I thought they where going to drop it- but they got it up! well done! hahahah
  31. I would swap the oil sensors and see what happens

    I would swap the oil sensors and see what happens
  32. Replies
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    Use push pull recovery method. So long as the...

    Use push pull recovery method. So long as the evaporator and condenser pumps and on you should be okay

    I have done it on an OT during factory shutdown with the pumps off: it had an on-board...
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    Get some petrol and set it on fire!

    Get some petrol and set it on fire!
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    Have you got a picture?

    Have you got a picture?
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    Good Job!

    Good Job!
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    I don't think water can contract that much...

    I don't think water can contract that much either. If it wasn't rammed: the inlet was shut or blocked and the pumps dragged it down?
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    Hahahaha it is an Italian air handler- a...

    Hahahaha it is an Italian air handler- a spaghetti air handler
  38. Replies
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    That panel doesn't looked like it is movable but...

    That panel doesn't looked like it is movable but someone could have rammed it at an angle with a fork lift?
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    I like It!

    I like It!
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    My preferred method: a cold trap similar to...

    My preferred method: a cold trap similar to joeysmith with a small refrigeration pack cooling a homemade evap coil dipped in glycol

    Another method when I worked for another company: a large...
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    Hahaha Like the ductwork

    Hahaha Like the ductwork
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    I agree with dilp172. Look at the load to the...

    I agree with dilp172. Look at the load to the chiller. In Low load not much is happening in the evap so the compressor surges (I rebuilt a HA90 centrif on a YK with this problem- the customer linked...
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    Thanks for the specific response Summerhelp. I am...

    Thanks for the specific response Summerhelp. I am not familiar with that machine so I was giving him a generalised post to help him on his way
  44. Thread: Trane GCAF

    by Chiller Man
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    The panel has got wet Remove anything that has...

    The panel has got wet

    Remove anything that has got wet or connected to anything that has got wet. Dry wiring with WD40 and a rag. Replace the boards etc. that you have removed. Set program...
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    I agree with Healey Nut: If it isn't splattered...

    I agree with Healey Nut: If it isn't splattered on the walls or in a big pool under it- it's in there somewhere. Don't put more in- work out where it is and how to get it back
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    When it was running short of refrigerant the low...

    When it was running short of refrigerant the low mass flow rate would have slowed oil return. Now you have sorted that issue out you need to leave it off for a while to build load up, then run it at...
  47. We have F-gas regulations over here that are...

    We have F-gas regulations over here that are getting rid of the cowboys. You need to go to College for 4 years then get your F-gas certificate (you can get it with grandfather rights)

    The...
  48. They are used a lot on Airedale Chillers over...

    They are used a lot on Airedale Chillers over here. I Agree- can't beat Bitzer- reliable good compressors
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    5 litre Rapid Cleanse to brake down the scale 1...

    5 litre Rapid Cleanse to brake down the scale
    1 litre Biocide EP8170 to get rid of anything biological

    They are what we use over here- they really do the trick! A company called F&R Products are...
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    When I have fault found Johnson Controls...

    When I have fault found Johnson Controls transducers: I check the range on the transducer. The black wire is ground, red wire is 5vdc signal and the white wire is feed back to the controller

    So, a...
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