I'm still shakin' my head on this one.
Got a call from an old customer, who just bought another ice cream stand. Walk-in freezer down. This is what I found. The immediate problem was low charge, but as I looked around more, I couldn't believe this thing had been cooling at all. The box is an old "Penn" about 6' x 10', and probably 45 years old. I used to work on it at a local school 15 years ago, they replaced it and I hear it went to this place about 10 years ago. New refrigeration was added at that time, Copeland 1 HP semi and Larkin coil. And yes, the rear of the coil is facing the interior. Discharging air to the rear wall.
This shot is taken from the floor up, showing the discharge air blowing at the rear wall. Fan guard is about 8" from the wall.
Want to service the TXV? Good luck getting into the side access panel.
The air movment was so poor, the coil must have iced up super fast. There were 6 defrost cycles, 35 min each, per 24 hr.
The strange thing is, the installer did a neat fitting job, even used a liquid/suction line sub-cooler. Quality equipment... Why this?
There are a few other beauties in the pics... see if you can find them.