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Thread: R-410a Gauge Pressure
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24-10-2005, 02:36 PM #1
R-410a Gauge Pressure
I am new to R-410a. Please can anyone tell what are the low & high side gauge pressures for a certain ambient temperature of a domestic airconditioner with R410a.
Thanks in advance
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24-10-2005, 03:46 PM #2
Re: R-410a Gauge Pressure
Originally Posted by Mr.Sark
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24-10-2005, 04:46 PM #3
Re: R-410a Gauge Pressure
Thanks Frank for replying, chart was very useful, but a domestic unit with R-410a, what is its design pressure? E.g With R-22 its Lowside 4bars & Highside 16 bars with an ambient temperature of 32deg C.
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24-10-2005, 06:57 PM #4
Re: R-410a Gauge Pressure
With r410a on a heat pump split, the gauges are only useful for telling you if you have gas in the system or not, you cant tell the ambient temp by your gauges pressure on R410a i'm afraid.
cheers
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24-10-2005, 11:32 PM #5
Re: R-410a Gauge Pressure
Originally Posted by Mr.Sark
If you have a copy of the R410a pressure temperature chart, as provided by Frank, then you should be able to work out the pressures relating to the temperatures that you have measured.Brian - Newton Abbot, Devon, UK
Retired March 2015
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25-10-2005, 09:02 AM #6
Re: R-410a Gauge Pressure
without sounding rude u should have some training on 410 also gauge connections r differrent
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25-10-2005, 10:03 AM #7
Re: R-410a Gauge Pressure
Roughly said, split with R410A could be normal
LP - 8-10 bar
HP - 25-30 bar
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25-10-2005, 11:06 AM #8
Re: R-410a Gauge Pressure
Hi Mr.Sark,
I don't think that there is such a thing as design pressure,
The unit is designed to maintain the evaporating temp above the freezing point,
It is done by adjusting the outdoor fan to the coil temp, regardless if its cooling or heating, assuming the system is charged as it should be.
only in sophisticated controls such as VRV and stuff, pressure is being monitored.
all th splits measure temps:
indoor temp,
indoor coil,
outdoor temp,
outdoor coil,
The rest is done by the controller.
410 is simply another refrigerant.
You will have to make sure though, that the copper tubing you use, will hold the higher pressure.
Hope I solved some of the mysteries.
Chemi
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27-10-2005, 10:17 AM #9
Re: R-410a Gauge Pressure
while on 410 a can u suggest thickness of copper tubes to hold the pressure?
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27-10-2005, 12:34 PM #10
Re: R-410a Gauge Pressure
Originally Posted by katyalrk
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27-10-2005, 09:43 PM #11
Re: R-410a Gauge Pressure
Originally Posted by katyalrk
Hope you " satisfied" this timeAny opinions, statements and facts expressed in this message do not constitute legal advice in any shape or form and is given for a general outlook in nature. You are advised to seek appropriate and specific professional assistance from a regulated and authorised advisor for definitive advice.
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30-10-2005, 04:33 PM #12
Re: R-410a Gauge Pressure
on the subject of r410 i know you are supposed to pressure test with nitro to 1.5x d.p is it the same for r410 given the fact that it has higher d.p and therefore may find the smallest weakness?>
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30-10-2005, 08:15 PM #13
Re: R-410a Gauge Pressure
Richard, a strength test is a strength test regardless of the medium used.
Brian - Newton Abbot, Devon, UK
Retired March 2015
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