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New r410a system testing hp on a80 deg day in heat mode what should hi and lo side pressure be

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What are the running compressor pressures H&L


Thats a hard question to answer! what Type of refrigerant is in it? R-22 or R410A? If its R-22 you want to see about 60-65# low side and 225 -240 high side. those can vary with outside temperature. R-410A look for 120# low side and 450-475# high side. DO NOT USE R22 MANIFOLD SET ON R410A SYSTEM!! IT WILL NOT TAKE THE HIGH PRESSURES AND COULD EXPLODE.

Aug 12, 2014 | Intertherm P3RA-036K Air Conditioner

5 Answers

My ground source heat pump doesn't deliver the full power. (It is not a carrier model) I notice ice building up on the cold side of the refrigerant piping (heat exhanger inlet, liquid separator, until...


main reasons that cause ice on suction line

-low evap air flow
-low refrigerant
-low load
-liquid line restriction (possibly filter drier)

need a picture to further help

May 29, 2017 | Carrier New 5 Ton Ground Source Geothermal...

1 Answer

Heat pump with High head pressure


HFC-134a ? Critical pressure is 588.9 a . With a 93 LL temp and 575 head, I would suspect 1. Air in system or 2. Ref. has gone critical.
With a 110 psig suction/85 deg.F and a LL temp of 93 deg.F/125 psig

Jan 13, 2013 | Ruud Heating & Cooling

1 Answer

A/C unit no longer cooling. Showing pressure at 100 psi.


did you use a manifold gauge, HI and LO side, if your compresor is not engaging probably due to a low charge, because your gages must read about 15F below ambient temperature that translate to on a 80f day uyour gage must read about 95psi on hi and lo (no compresor running)with compressor runing your lo side must be around 35psi and your hi side around 200+ psi depending on amount of air cooling your conderser, also note charging amout tag to not overcharge system, on other hand your problem may be a electricall, check your fuses and MG/C cluth relay by pass it to confirm your compresor is in good working condition.

Jul 08, 2012 | 2000 Toyota Celica

1 Answer

Comfort aire R410A


So I'm assuming your house is 1200 to 1500 sqft?? Why is unit freezing?? Is the filter clean, vents open, blower motor running?? What's the Static pressure on the system?? Is there a refrigerant leak?? How about the txv?? First report the installer to the better business bureau, then find a qualified company to fix the unit. Good Luck!!

May 09, 2017 | Comfort-Aire Heating & Cooling

2 Answers

Lost manual for model R410A Daikin invertor. Where can i find a new one?


google daikin (model number) manual . what are you trying to do or just want a manual ?they really dont tell you much in them.

Nov 03, 2010 | Cfm Daikin R410a Split System Air...

1 Answer

What is the high pressure and low pressure reading for a standard R410a air conditioning equipment?


outdoor ambient temp + 30 deg F convert to pressure via chart;
indoor ambient-40deg F converted to pressure via same chart.

Nov 01, 2010 | Heating & Cooling

1 Answer

Freezer @ +28 deg/appears common problem B 1st 2 answer right....


Model numbers of Kenmore , starting with 253. are made by Frigidare . The compressor probably has a valve out , either the high-side , or low-side . Probably the low-side valve is bad , therefore , the high-side will pump but not get the freezer as cold as it should be . Both sides have to work . Low-side helps pull the refrigerant thru the system , while the high-side pumps pressure thru the system .

Aug 26, 2009 | Kenmore 20.3 cu. ft. / 575 liter Upright...

1 Answer

Need a manual or user guide for a APAC (carrier) model S0140HR8AM


hi scootter.it means there is a too much high pressure on the compresor side of the discharge side of the comp.u migh have a blockage some were.call a service tech

Jun 07, 2009 | Heating & Cooling

1 Answer

The unit is not going into heat mode at all.


Hi there , ok depending on the brand and model please make sure that the control is in heat mode, secondly that the remote has fresh batteries,(if it is remote ) once you have established this try the following. 1. turn the system on in full cool first .  If it is cooling , wet the back of your hand and place it near the fan out let , you should be able to feel the coolness enough that it feels like its biting your hand , if this happens good , it means that the refrigerant charge is good and its not a gas problem , if it feels kind of weak then refrigerant is the problem and you will need a qualified person to test the system, ok if it was good then switch is over to full heat , remember to wait about five minutes because most of these systems are fitted with a timer to protect the compressor from sudden off/on switching so be patient ok once it starts and fan is running feel the air comming out , also go outside and see if the fan is running or not and if you can hear like a motor running or not as well this will indicate if the compressor is working , now in the heating mode you should be able to feel the air comming out of the out door unit from the fan it should be cold, if it is hot and you have the system in heating mode then the reversing valve or solenoid is the problem and you will require a technician to repair this because of the nature of this problem, some times these system have problems in heating especially if it is running on freon 22 as this gas will not operate below 5 deg C. if it running on freon 410a then it can run as low as -5 deg C  Something else to consider is the out side temperature  is it too cold ?  see how go , i hope this information helps you , remember if the control is remote and the batteries are even half flat it will send a garbled message to the system and it won't know what to do so make sure to change the batteries.
Thank you and have a lovely day :)

May 12, 2009 | Heating & Cooling

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