compressor overheating

[kefah]

hi
i have crafft window type air conditioner 24000 btu capacity
it was leaking from service valve
so i degas it
then checked for leaks
and charged it
it works properly
and cooling perfectly
but the compressor is overheating
DSC_2251.jpg
i checked the temperature of
discharge line = 70 C
suction line = 19 C
compressor top cover = 73 C
current = 14 amp
volltage 210 volt
so where is the problem

[Sumit]

Which refrigerant u r using ?? check the suction & discharge pressure's... How u calculated the length and size of capillary ?

[kefah]

Which refrigerant u r using ?? check the suction & discharge pressure's... How u calculated the length and size of capillary ?

r 22
suction pressure
65 psi
i didn't touch the capillary
still as company made it

[Brian_UK]

I see no problems with those temperatures.

Also, what type of compressor is it?

[kefah]

I see no problems with those temperatures.

Also, what type of compressor is it?

it LG
scroll or rotary compressor
im not sure

[RusBuka]

You dont tell us all parameters

InDoor temperature
OutDoor temperature
Airflow
SH

if something block air flow or you have jamed air filter)

[Tesla]

Hi Kefah
Your suction superheat is excessive - 19degC @ 65psi. Current seems a little high - what is the current rated at? Did you charge it by weight with a set of accurate scales or by system pressures. Is it cutting out on a thermal safety because it looks like and old rotary (rotary's run hot). The way it was charged will help with the solution and the current rating. Sorry I don't have a btu converter.

[moideen]

Hi kefah, your compressor is rotary. Rotary compressors have designed to work 100c to 120c.73c is normal.

Moideen-Dubai

[kefah]

Hi kefah, your compressor is rotary. Rotary compressors have designed to work 100c to 120c.73c is normal.

Moideen-Dubai

thank you i appreciate that

[kefah]

You dont tell us all parameters

InDoor temperature
OutDoor temperature
Airflow
SH

if something block air flow or you have jamed air filter)

indoor 40 c
outdoor 50 c
air flow good
sh dont know

[kefah]

Hi Kefah
Your suction superheat is excessive - 19degC @ 65psi. Current seems a little high - what is the current rated at? Did you charge it by weight with a set of accurate scales or by system pressures. Is it cutting out on a thermal safety because it looks like and old rotary (rotary's run hot). The way it was charged will help with the solution and the current rating. Sorry I don't have a btu converter.

the current on name plate is 14 amp
i charged by using scales

[RusBuka]

indoor 40 c
outdoor 50 c

I think its not good... Indoor temperature too high, i dont know TROPIC edition unit or not, but indoor too high.

[kefah]

indoor 40 c
outdoor 50 c

I think its not good... Indoor temperature too high, i dont know TROPIC edition unit or not, but indoor too high.

the unit is tropical
so is that normal for the compressor or not

[RusBuka]

Its normal.

[kefah]

Its normal.

so what is the max working temperature and pressure of compressor

[Tesla]

Hi Kefah
Moideen has given temps for comp. Why do you think the compressor is overheating?. Will it pull the room down to a reasonable temp or is it cutting out on a compressor thermal safety (klixon)? there may be no problem apart from a high initial load for the unit.

[kefah]

Hi Kefah
Moideen has given temps for comp. Why do you think the compressor is overheating?. Will it pull the room down to a reasonable temp or is it cutting out on a compressor thermal safety (klixon)? there may be no problem apart from a high initial load for the unit.

the unit cooling
the compressot not cutting by thermal safety
but i asked why its overheated
thank you

[Brian_UK]

Compressor case temperature is within limits.

System can only be analysed when it had reached design conditions, during pulldown readings will often appear strange.

Also, have a read of this....
http://www.parker.com/parker/jsp/doc...0048021dacRCRD

Lots more technical information available here if you want it...
http://www.parker.com/portal/site/PA...ype=literature

[kefah]

Compressor case temperature is within limits.

System can only be analysed when it had reached design conditions, during pulldown readings will often appear strange.

Also, have a read of this....
http://www.parker.com/parker/jsp/doc...0048021dacRCRD

Lots more technical information available here if you want it...
http://www.parker.com/portal/site/PA...ype=literature

thank u all

[nassrifi]

dear Kifah,, I think there is nothing wrong with your unit. it is running with normal conditions. do not worry, rotary comp.s usually run hot

regards

[kefah]

dear Kifah,, I think there is nothing wrong with your unit. it is running with normal conditions. do not worry, rotary comp.s usually run hot

regards

thank u man