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Thread: Bedroom not cool
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26-04-2010, 03:55 PM #1
Bedroom not cool
Hello everyone
I face some problem with my bedroom air-conditioning because not cool .Could anybody guide me to solve this problem .Any advice would be appreciate .
It is National 1 Hp ( 2.55 kw cooling capacity ),R22 .
Ambient temperature +32°C .The evaporator only have 3 rolls with condensation ,others remain dry .i have checked the pressure at low side,it was 55psi( SST= -1°C ) .Evaporator clean and fan rotate in correct direction .Some time the compressor overload cut out when the body too hot .
Is it the superheat too high ?
Is the system less of refrigerant ?
or the piping has block ?
your advice would be very appreciated .Thank you.
Regards
OilzeeLast edited by oilzee; 26-04-2010 at 05:12 PM.
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26-04-2010, 05:57 PM #2
Re: Bedroom not cool
I'd be removing the refrigerant and weighing it to see if the system is short. If it is short then you'll need to start looking for a leak before doing much more.
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26-04-2010, 09:08 PM #3
Re: Bedroom not cool
hi what is your hi side pressure?
What is the temp in the room your cooling and what is the supply temp?THE DEFINITION OF A SMART PERSON IS ONE WHOM LEARNS FROM HIS MISTAKES!!!
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26-04-2010, 11:05 PM #4
Re: Bedroom not cool
short the gas ?
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27-04-2010, 12:55 AM #5
Re: Bedroom not cool
I would say its a shortage of refrigerant. The fact you only have 3 rows of coils that are wet suggest that there isnt enough gas.
You will have to call an engineer to find the leak and repair.
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27-04-2010, 01:00 AM #6
Re: Bedroom not cool
3 rows of coils wet but none frozen could possibly indicate an issue with the distributor.. are the 3 rows right next to each other or are the 3 rows spread throughout the coil? is it a multifold coil? have you had the cover off and see if all the coil feeder tubes are getting cold?
-Christopher
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27-04-2010, 08:35 AM #7
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27-04-2010, 08:43 AM #8
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27-04-2010, 09:00 AM #9
Re: Bedroom not cool
Last edited by oilzee; 27-04-2010 at 09:11 AM.
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28-04-2010, 03:41 PM #10
Re: Bedroom not cool
my vote is for a blockage in the evap coil distributor.. obviously the easiest thing at this point would be to recover and replace by weight the refrigerant.. you could also sdwitch the unit over to heat(reverses flow of refrigerant) then back to cool. if there is a blockage in the distributor it might clear.. (although would likely come right back).
-Christopher
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