PDA

View Full Version : Midea 36000 too hot condenser and overload after few hours problem.



mehdi63
12-08-2014, 06:15 PM
hi. Dear friends.
I have Strange problem with midea air condiditioner that condenser become too hot and compressor draw high ampere about 20 21 with 60 psi with r22 gases.
Current witch printed in nameplate is about 17 and rated current is 25 A.
If we increase gas the drawn ampere increase and Cause compressor overload.
In 60 psi after few hour compressor overloaded Basr on weather condition.
I changed cpacitors( it has 2 Capacitor with 60 mf) and used presure nh3 to clean air conditioner evaporator and condenser but nothing changed.
please help me to know what is problem.
It has capilary tube.

kefah
12-08-2014, 07:03 PM
did u check the 4 way valve
is the compressor good?

mehdi63
12-08-2014, 07:29 PM
Air conditioner installed 3 month air ago and compressor has sufficient power and can cool inside store.
no I didn't check the 4way valve But could you pleaseexplain the impact of 4way valve in my problem?

kefah
12-08-2014, 07:36 PM
if pressure increase abnormally this could be the 4 way valve is faulty
or that could be result of condensor fan faulty
the unit was new?

frank
12-08-2014, 08:42 PM
Just giving compressor amp draw and suction pressure does not give us a clear picture of what is happening on you system.

Can you take more measurements around the system and post them on here?

Discharge pressure
air temp on to the condenser
air temp off the condenser
liquid line temperature
liquid line pressure
suction line pressure
suction line temperature
evaporator air on temperature
evaporator air off temperature
ambient temperature

Brian_UK
12-08-2014, 10:47 PM
60psi with R22 is a good suction pressure.