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Type: Posts; User: CoolFox
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02-14-2011, 08:32 PM
Thread: Absorber Refrigerant Color???
by CoolFox- Replies
- 8
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- 732
The molybdate inhibited chillers I've worked on...
The molybdate inhibited chillers I've worked on have all been a clear solution.
Have you always serviced this chiller?
Is it possible that at some point someone has added Chromate?
Once I had a... -
02-12-2011, 04:47 PM
Thread: Absorber Refrigerant Color???
by CoolFox- Replies
- 8
- Views
- 732
Its not the pudding thats turning it yellow, its...
Its not the pudding thats turning it yellow, its the custard on top.
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02-12-2011, 03:40 PM
Thread: Absorber Refrigerant Color???
by CoolFox- Replies
- 8
- Views
- 732
Sounds like you have some solution in your ref,...
Sounds like you have some solution in your ref, as already mentioned ref water is normally clear, as is Lithium bromide. A bright yellow / green colour is likely to be from the inhibitor used in the...
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Is it failing during the contactor test or when...
Is it failing during the contactor test or when it trys to run?
Check for incorrect wiring or welded in contactors. don't forget these starters use 4 contactors the 3 large ones and a small one for... -
02-01-2011, 05:31 PM
Thread: Absorption Chillers
by CoolFox- Replies
- 8
- Views
- 1,078
I've had units pull in a pint or so when the...
I've had units pull in a pint or so when the purge valve was left open and a flush out of the chiller worked. 5 gallons though, Ouch. Assuming the pumps didn't run while the valve was open and the...
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12-04-2010, 04:28 PM
Thread: Removal of Ammonia in Lithuim Bromide
by CoolFox- Replies
- 3
- Views
- 792
Take your pick, Ion resin exchange, Refrigerant...
Take your pick,
Ion resin exchange,
Refrigerant change,
Bromide change,
All with their own problems and costs.
No magic bullet. If you find one let me know! -
12-02-2010, 02:21 PM
Thread: Lithium Bromide
by CoolFox- Replies
- 5
- Views
- 816
Lithium bromide is a salt so doesn't wear out as...
Lithium bromide is a salt so doesn't wear out as it were. However to work effectively it needs to be at the correct % in water. 'Weak' bromide could just mean that the concentration is low which can...
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11-28-2010, 02:54 PM
Thread: Fuse kits for Voyager IGN xfrmr?
by CoolFox- Replies
- 11
- Views
- 604
Voyagers in the UK come with a transformer that...
Voyagers in the UK come with a transformer that has built in fuses on both the primary and secondary sides. I assume that we must have different wiring regulations as wiring in imported US units used...
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11-17-2010, 05:14 PM
Thread: Absorbers?
by CoolFox- Replies
- 5
- Views
- 496
I must spend about 80% of my time servicing and...
I must spend about 80% of my time servicing and repairing Absorbers. Their still popular here on sites with large boilers or CHP plant like hospitals and pharma sites. If the steams free or surplus...
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11-14-2010, 06:39 PM
Thread: Trane voyager evap fan won't turn off !!!
by CoolFox- Replies
- 43
- Views
- 2,852
For what its worth have you checked the grounding...
For what its worth have you checked the grounding of the whole unit? I've had voyagers do crazy things due to faulty earths. One occasion a unit would regularly go into fail for no reason, Tried...
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09-19-2010, 12:07 PM
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- 9
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- 1,236
Did your guy prime the oil lines? Trane...
Did your guy prime the oil lines? Trane compressors need the oil lines and filter filling with oil on start up to provide lub until the diff pressure can push oil from the sep into the compressor....
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09-18-2010, 07:34 AM
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- 4
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- 541
Thanks, Thats what I thought. I've looked at the...
Thanks, Thats what I thought. I've looked at the spec again and it only reads to 40 bar but is overload rated at 60 bar. A bit annoyed that Testo don't make this limitation clearer given that R410a...
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09-17-2010, 12:09 PM
- Replies
- 4
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- 541
Can the testo 550 take a 45bar HP trip test?
Hi.
I've a question about the Testo 550.
After reading the reviews about it I persuaded my boss to change from a refco gauge he was supplying to the Testo. We are replacing our older equipment to...
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