generally walkin boxes are not designed for pulldown in that kind of environment, it will take at least 48 hrs or longer to get to temp, just keep babying it. all that heat in the walls has to be pulled out. be patient. those that install new boxes are aware of this.

 

did you blow nit. threw system clear oil from system why did you go to 1 ton valve

 

yes with the nitro, valve is rated for 1/2 to 1 ton whats required for evap at 106000 btus!

 

how big is the box? If it's marginally sized it will definitly take longer to pull down, right?

 

I see two problems...

1) That condensing unit has inherent head pressure problems, I stopped using them a couple of years ago for that reason. Just not enough coil for hot climates. They make a twin fan model with the same compressor that is rated 2000 BTU higher, it works fine. I pitched a fit to Tecumseh about it and they quietly admitted that it doesn't do well in hot climates, maybe your distributor will work with you on switching to a twin fan unit.

The problem is made worse by the high suction, it's running your head up. Put in an MOP valve or use a crankcase regulator to limit suction to 35 PSI.

You may even have to mist water on the condenser to keep the head down until the box pulls down.

 

Thanks guys, I check in on it for awhile, thanks K I wont get caught again!

 

Sounds overcharged to me......

 

Sounds like you have no orifice in the distributor.

 

You said that the box was outside. Are the panels dry, what about the floor. If they are saturated with water then the box may never cool down properly. Sound like you did most of the install OK, look for the stupid things!!

 

TBK whats update on WIF ?

 

after 24 hrs it had pulled down to 12 degrees ( customer called to tell me ) havent had a chance to get back and check everything, swamped here! Not the way I like to do things but trying to keep all my regulars happy, not even taking new customer calls right now!

 

i am agree with K FRIDGE .again try to go there when its around 5 deg desighn temp check SH SC MAke sure you got everything ok thats time you realy going to find problem