DangerousDave16v
Member
Registered: 20th Feb 03
User status: Offline
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who knows how to de-pressurize the air con systen on an air conditioned sport 1.4 16v
help appreciated
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
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pull the hose off a little bit and stand back.
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DangerousDave16v
Member
Registered: 20th Feb 03
User status: Offline
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isnt refrigerant 134a very dangerous?
ive heard it can give you legionnaires disease?
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
User status: Offline
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theres a bleeding hole in line and all we did (a mate who top tec at vauxhall) was stuck a nail in the valve (like deflating a tyre with a matchstick) and let it push the gas into the air, and walk away and leave it.
legionnaires disease is if u inhale it alot not a small tank  aslong as you not trying to get high of it your fine aslong as u walk away 
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DangerousDave16v
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Registered: 20th Feb 03
User status: Offline
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cheers beardy, your the boy
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JJ
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Registered: 20th Apr 00
Location: Northern Ireland
User status: Offline
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How much is it to get it filled again???
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corsafreak
Member
Registered: 1st Dec 03
Location: --- NorthEast ---2.0 16v powered
User status: Offline
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quote:
Originally posted by DangerousDave16v
isnt refrigerant 134a very dangerous?
ive heard it can give you legionnaires disease?
thats bollock's and i'm a refrigeration engineer. legionnaires disease is a water borne virus which has rarely been asociated with airconditioners and cooling towers not the gas itself
by law the gas must be reclaimed and sent for recyling.
the gas is removed from the small capped valve on the large (suction) and small pipe (discharge) both of these pipes run to the compressor.
on occasions the suction service valve has been known to be "accidently" pressed in much like a tyre valve and the gas escape, this being totally illegal of course and i would never condone such action.
the only danger from the gas is in it's liquid form as it can cause nasty freeze burns,but that would only happen if the discharge line valve was opened.
i'm sure you will find someone in the yellow pages willing to charge you about £50 just to remove the gas 
[Edited on 21-04-2004 by corsafreak]
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DangerousDave16v
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Registered: 20th Feb 03
User status: Offline
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As i recal (from when my air con pump failed) it was about 30 quid to put it in, and 30 to have it taken out. think that was mates rates too tho,
cheers by the way corsafreak
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JJ
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Registered: 20th Apr 00
Location: Northern Ireland
User status: Offline
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yea but if ya have sent it to to atmosphere lol how much to have it replaced and charged???
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corsafreak
Member
Registered: 1st Dec 03
Location: --- NorthEast ---2.0 16v powered
User status: Offline
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between £50-70 professionally or about £30-40 if you have a mate that fixes aircon 
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bubble
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Registered: 24th Jan 04
Location: Darwin, NT Australia.
User status: Offline
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R134a is harmful in the atmosphere and even more harmful if your smoking because the cigarette can absorb it. the air con autoclimate course says R134a can aid the influence of legionairres but is not a definite factor. to empty the lines by venting is just silly. it costs 75 to recharge a system at our place.
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corsafreak
Member
Registered: 1st Dec 03
Location: --- NorthEast ---2.0 16v powered
User status: Offline
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quote:
Originally posted by bubblevaux
R134a is harmful in the atmosphere and even more harmful if your smoking because the cigarette can absorb it. the air con autoclimate course says R134a can aid the influence of legionairres but is not a definite factor. to empty the lines by venting is just silly. it costs 75 to recharge a system at our place.
the cigarette does not absorb r134a , it acctually gets burnt and drawn into your lungs as you inhale on the fag. most refrigerants including r134a passed over a burning heat source break down into phosgene (mustard gas) which is not a good thing to have in your lungs. it is very acrid and used to great effect in WW1 as it's heavier than air and filled trenches up with poison gas.
also the amount of refrigerant in a car is probably less than half a kg. about 13 years ago it was common practise to vent all refrigerants to the atmosphere supermarket packs containing a few tonne were always hacksaw reclaimed.
aerosols used to be powered by cfc's,all polystyrene was made by blowing cfc's through it. the usa and 3rd world countries all still use cfc's, the most damaging which were banned here 10 years ago  .
r134a is reclaimed because it has a high global warming potential not because it destroys the ozone layer, it was originally designed as an anasthetic.
as for the legionaire link first time i've heard of that in 13years in the trade, r134a is only used in vehicle aircon and the system is sealed. as i said some large ducted aircon systems (using r22, r410a and r407c) have been linked to legionaires disease, not due to the refrigerant but because they collect water in the ducting which causes the virus to arise.
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STEvieXE
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Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
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its illegal to do this. call a radiator/air con specialist. we just got a machine to do it in work @ 5 grand. think fella we were using was charging 85 notes a go..
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corsafreak
Member
Registered: 1st Dec 03
Location: --- NorthEast ---2.0 16v powered
User status: Offline
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quote:
Originally posted by STEvieN.I.
its illegal to do this. call a radiator/air con specialist. we just got a machine to do it in work @ 5 grand. think fella we were using was charging 85 notes a go..
yes it is totally illegal and i would never condone venting any refrigerant to the atmosphere. i have a 3 £600 portable recovery units 1 for each van.
i'm just putting it into prospective how things have been clamped down in this country in the last 10 years. we can't even scrap a fridge or freezer now incase it has a few gram of gas in the foam insulation left over from the blowing process whereas any cfc recovered here can be recyled and freely sold to 3rd world countries who certainly won't have recovery equipment.
totally laughable, they charge us for taking the gas away then sell it on again to 3rd world countries, and the usa won't stop using cfc's.
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