Heron Q Air Conditioner RS

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GerryP
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Re: Heron Q Air Conditioner RS

Post by GerryP » Sat Jan 12, 2019 7:54 pm

J.REEVES wrote:
Sat Jan 12, 2019 7:49 pm

The air con techo has been in the trade 40 years. He had the gauge only connected on one fitting so maybe it was on the suction side but I have no doubt he new his trade.

JR
:razz:
Yep, that would've been suction side as that's where you put the charge in. He's off the hook then. LOL
Cheers, Gerry
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Gerry M
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Re: Heron Q Air Conditioner RS

Post by Gerry M » Sat Jan 12, 2019 7:59 pm

JR,
depending on how keen you are, the big hammer store carries about 4 industrial gasses and Nitrogen is one of them.
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bobsa
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Re: Heron Q Air Conditioner RS

Post by bobsa » Sun Jan 13, 2019 11:15 am

Jr
dont use any silicons once you have that stuff on the pipe you will never weld it
you dont need nitro on such a small pipe any good fridgy can weld it ,
I have repaired many a fretted condensor
be sure that the other return bends are not going the same way
If you want you could ring the manufacturer for a new condensor they are made in Adelaide
Air command 954 Port Rd, Albert Park SA 5014
Phone: (08) 8345 8444
Yes R22 is very expensive now that the government has levies are on it , I think R22 is finished in 2020
and a replacement drop in gas will be used, you can ask the guys at Air command about it
iIf it is not to expensive I would go a new one plus a new solder in drier
cheers Bob

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J.REEVES
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Re: Heron Q Air Conditioner RS

Post by J.REEVES » Sun Jan 13, 2019 11:43 am

Thanks guys good info,
I think the hole is just before the bend and just after the pipe support plate it’s just a straight bit about15 to 20mm long. The 180 degree bend is silver soldered after the hole. I need to take the cover off again and double check and if possible post a photo.

Now this question maybe a trade secret but is R22 explosive and if the condenser has no pressure in it would it be safe to silver solder with say blue tip silver solder and not purged with nitrogen?

JR
:razz:

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GerryP
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Re: Heron Q Air Conditioner RS

Post by GerryP » Sun Jan 13, 2019 12:00 pm

JR, as Bobsa has stated, you could get away without nitrogen as the filter/drier should catch any scale produced. Just try and keep as much air out of the system as possible and make sure that a very good vacuum is pulled on the system before recharging.

R22 is a regulated substance requiring a licence to both use and buy, so no doubt you'll need to find a fridgie to recharge it anyway. If you can, get a new filter/drier fitted.

To answer your questions... no, R22 is not explosive, but the burnt gas is a phosgene, so avoid breathing in any burnt vapours as they aren't real good for you. Having said that, I've probably breathed in my fair share during my working life and there's nothing wrong with me... :roll: LOL

If you use blue tip, you'll need flux. That's OK, but brown tip is easier as no flux required and is much easier to build up if required. Just make sure you clean the pipes up with emery or steel wool prior to soldering.

By the way, just for interest, AirCommand is now owned by Dometic. They were acquired by Atwood in 2013, then by Dometic in 2015 if I recall correctly. It was a good, family owned business and I knew the owner quite well... but I guess we all have to retire at some stage.

Cheers
Cheers, Gerry
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