I have the job of making a walk-in-freezer work.
The freezer was installed 3 years ago.
it is a mishmash no name, the inly names are on the compressor and the TXV.
The compressor is a LA50-0400-EWL-202 Coplamatic compressor. The valves have been replaced several times?? The compressor now has 1 phase shorted to ground.
The Condensing unit is on the roof , low profile and in the sun all day.
The evaporator is 6 feet below the condenser coil.
There is a solenoid valve in the liquid line as the liquid line enter the wall behind the walk-in. but there is no low pressure switch anywhere to be found.
Since I am in Thailand I can not seem to find a rebuilt compressor here, even though the factory is here in Thailand.
Now for my question, Can I replace the existing condensing unit with a 4 ton A/C condensing Unit, an locate it with in 6 feet of the evaporator and out of the sun. The system uses R-22.
If this will work it would save me a lot of work and money, I would of course install the proper safety and control circuits.
I use to work and install walk-in's 40 years ago in Louisiana, but things have changed a lot.
I would appericate any comments, advice and help with this project.
Farang (an American in Thailand)