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Old 06-19-2011, 03:32 PM   #16
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That's true for now Jeff. I've heard rumor that a special certification for 410 is coming but have not seen anything in writing yet. Might not ever happen.

Ain't gonna happen. R410A is already in phase down, so they aren't going to do anything special to pass any requirements.

R410A does not require a section 608 cert to purchase, handle or service equipment utilizing it.


Just be sure you know how to connect and disconnect the hoses first. nasty frost bite if you screw up.

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Old 06-19-2011, 09:39 PM   #17
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When you check the pressures on a heat pump, do you take them in heating and cooling mode or is one sufficient? Is there a best time of year to do it where the outdoor temps will be high, or low, etc?
It's easiest to check refrigerant in cooling mode with normal inside and outside operating conditions. Still a good idea to check heating mode once it cools down in the fall to make sure outdoor txv is working correctly.
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Old 06-19-2011, 11:07 PM   #18
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It's easiest to check refrigerant in cooling mode with normal inside and outside operating conditions. Still a good idea to check heating mode once it cools down in the fall to make sure outdoor txv is working correctly.

I went for the 14SEER unit so I don't have an outdoor TXV.. Wish I did because I use the HP a lot more in heating mode than AC mode..
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Old 02-09-2016, 12:59 PM   #19
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This link doesn't work so I'm going to pick up the "Yellow Jacket 19208 1/4" SealRight 45 degree x 1/4" Male Flare" instead..

http://amzn.com/B008HQ6TEU

16 dollars each shipped.
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Old 02-09-2016, 09:26 PM   #20
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When you check the pressures on a heat pump, do you take them in heating and cooling mode or is one sufficient? Is there a best time of year to do it where the outdoor temps will be high, or low, etc?
Ck pressures subcooling & superheat- IMO best in cooling outside min 70* More Warm the better up to 95* - gauges OK on e-bay but watch for china junk! Some china gauges read metric #s---You may want to buy medium quality tools & equipment-can re-sale - Other HVAC on-line site I read in YOUR area P.O. mandatory for HVAC company to have lic electrician to do wiring- High & low volt wiring. Said they got caught installing T/S wire & was fined $1500.00- I would be more worried about a DIY project (HVAC)- someone turning me in to code enforcement or???? And his company WOULD turn someone in!! You may want to check - may be OK for property owner to DIY HVAC// Also check home owner ins- if something went bad home owner ins may find a way out NOT to cover (pay) I would be more concerned on the install than the EPA. If a lawyer went into HVAC supply & wanted to buy R410A -might be a different story for the lawyer??? You can get R410A on e-bay, craigs list etc. If you buy a part jug, keep in mind empty jug weight around 9 lbs. Google superheat & subcooling. Hope this 411 helps!!
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Old 02-09-2016, 10:51 PM   #21
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been working with 410 for years …zero problems…..same gauges for 6 years

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